/* ══════════════════════════════════════════════════════════════════
   Calculator Hub — Premium Landing Page CSS
   2026 Design System · Indigo/Violet & Cyan Brand Theme
   Full Dark + Light Theme Support · THERABApps
══════════════════════════════════════════════════════════════════ */

/* ─── DARK TOKENS ───────────────────────────────────────────────── */
:root {
  color-scheme: dark;
  --bg-primary: #06060f;
  --bg-secondary: #0d0d1a;
  --bg-card: rgba(99, 102, 241, 0.05);
  --bg-card-solid: #0f0f20;
  --bg-glass: rgba(6, 6, 15, 0.88);
  --bg-icon: rgba(99, 102, 241, 0.12);
  --bg-icon-neutral: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);

  --border: rgba(99, 102, 241, 0.15);
  --border-glow: rgba(99, 102, 241, 0.50);
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-icon: rgba(99, 102, 241, 0.20);

  --text-primary: #f0f0ff;
  --text-secondary: #a8a8d0;
  --text-muted: #555580;
  --text-on-accent: #ffffff;

  --accent: #6366f1;
  --accent2: #818cf8;
  --accent3: #a5b4fc;
  --accent-cyan: #06b6d4;
  --accent-green: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #ef4444;
  --accent-violet: #8b5cf6;
  --accent-pink: #ec4899;

  --grad-primary: linear-gradient(135deg, #6366f1 0%, #818cf8 50%, #06b6d4 100%);
  --grad-hero: linear-gradient(160deg, #06060f 0%, #0d0d1a 50%, #080820 100%);
  --grad-download: linear-gradient(160deg, #080818 0%, #06060f 60%, #0a0818 100%);
  --grad-card: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(6, 182, 212, 0.04));

  --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.22);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.55);
  --shadow-float: 0 8px 24px rgba(0, 0, 0, 0.40);
  --shadow-nav: 0 4px 24px rgba(0, 0, 0, 0.40);
  --shadow-phone: 0 40px 80px rgba(99, 102, 241, 0.25);
  --shadow-inset: inset 0 1px 0 rgba(255, 255, 255, 0.07);

  --phone-notch-bg: rgba(255, 255, 255, 0.09);
  --phone-track: rgba(255, 255, 255, 0.08);

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  --font-display: 'Google Sans', 'Noto Sans Tamil', sans-serif;
  --font-body: 'Google Sans', 'Noto Sans Tamil', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --nav-h: 72px;
}

/* ─── LIGHT TOKENS ──────────────────────────────────────────────── */
[data-theme="light"] {
  color-scheme: light;
  --bg-primary: #f5f5ff;
  --bg-secondary: #ffffff;
  --bg-card: rgba(99, 102, 241, 0.04);
  --bg-card-solid: #f0f0ff;
  --bg-glass: rgba(245, 245, 255, 0.93);
  --bg-icon: rgba(99, 102, 241, 0.10);
  --bg-icon-neutral: rgba(0, 0, 0, 0.05);
  --bg-input: rgba(0, 0, 0, 0.04);

  --border: rgba(0, 0, 0, 0.09);
  --border-glow: rgba(99, 102, 241, 0.40);
  --border-subtle: rgba(0, 0, 0, 0.07);
  --border-icon: rgba(99, 102, 241, 0.18);

  --text-primary: #0a0a1a;
  --text-secondary: #2a2a4a;
  --text-muted: #6a6a9a;
  --text-on-accent: #ffffff;

  --accent: #4f46e5;
  --accent2: #6366f1;
  --accent3: #818cf8;
  --accent-cyan: #0891b2;
  --accent-green: #059669;
  --accent-amber: #d97706;
  --accent-rose: #dc2626;
  --accent-violet: #7c3aed;
  --accent-pink: #db2777;

  --grad-primary: linear-gradient(135deg, #4f46e5 0%, #6366f1 50%, #0891b2 100%);
  --grad-hero: linear-gradient(160deg, #eef2ff 0%, #e0e7ff 50%, #f0f9ff 100%);
  --grad-download: linear-gradient(160deg, #e0e7ff 0%, #ede9fe 60%, #f5f3ff 100%);
  --grad-card: linear-gradient(135deg, rgba(99, 102, 241, 0.06), rgba(14, 165, 233, 0.04));

  --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.15);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.10);
  --shadow-float: 0 6px 20px rgba(0, 0, 0, 0.12);
  --shadow-nav: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-phone: 0 24px 60px rgba(99, 102, 241, 0.20);
  --shadow-inset: inset 0 1px 0 rgba(0, 0, 0, 0.04);

  --phone-notch-bg: rgba(0, 0, 0, 0.09);
  --phone-track: rgba(0, 0, 0, 0.08);
}

/* ─── RESET ─────────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

img {
  max-width: 100%;
  display: block;
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent2);
}

::selection {
  background: rgba(99, 102, 241, 0.28);
  color: var(--text-primary);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
  white-space: nowrap;
}

.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ══════════════════════════════════════════════════════════════════
   PRELOADER
══════════════════════════════════════════════════════════════════ */
.ch-preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.ch-preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.preloader-icon {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-lg);
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #fff;
  animation: preloaderPulse 1.5s ease-in-out infinite;
}

@keyframes preloaderPulse {

  0%,
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.5);
  }

  50% {
    transform: scale(1.08);
    box-shadow: 0 0 0 20px rgba(99, 102, 241, 0);
  }
}

.preloader-bar-wrap {
  width: 200px;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.preloader-bar {
  height: 100%;
  background: var(--grad-primary);
  animation: preloaderFill 1.8s ease-out forwards;
}

@keyframes preloaderFill {
  0% {
    width: 0%
  }

  100% {
    width: 100%
  }
}

.preloader-text {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.preloader-sub {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ══════════════════════════════════════════════════════════════════
   SCROLL PROGRESS + CURSOR
══════════════════════════════════════════════════════════════════ */
.ch-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--grad-primary);
  z-index: 9998;
  transition: width 0.1s linear;
}

.cursor-dot,
.cursor-ring {
  pointer-events: none;
  position: fixed;
  z-index: 9997;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

.cursor-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
}

.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(99, 102, 241, 0.5);
  background: transparent;
}

@media(hover:none), (pointer:coarse) {

  .cursor-dot,
  .cursor-ring {
    display: none;
  }
}

/* ══════════════════════════════════════════════════════════════════
   NAVBAR
══════════════════════════════════════════════════════════════════ */
.ch-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: var(--transition);
}

.ch-nav.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-nav);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--grad-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}

.nav-logo-text-wrap {
  display: flex;
  flex-direction: column;
}

.nav-logo-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  line-height: 1.1;
}

.nav-logo-by {
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
  background: var(--bg-icon);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 20px;
  background: var(--grad-primary);
  color: var(--text-on-accent);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  transition: var(--transition-bounce);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.55);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 8px;
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition);
}

.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateX(100%);
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-drawer.open {
  transform: translateX(0);
}

.drawer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  padding: 40px;
}

.drawer-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 18px;
  transition: var(--transition);
}

.drawer-close:hover {
  background: var(--bg-icon);
}

.drawer-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.drawer-link {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  padding: 8px 0;
  display: block;
  text-align: center;
  transform: translateX(40px);
  opacity: 0;
  transition: var(--transition);
}

.mobile-drawer.open .drawer-link {
  transform: translateX(0);
  opacity: 1;
}

.mobile-drawer.open .drawer-link:nth-child(1) {
  transition-delay: 0.06s;
}

.mobile-drawer.open .drawer-link:nth-child(2) {
  transition-delay: 0.10s;
}

.mobile-drawer.open .drawer-link:nth-child(3) {
  transition-delay: 0.14s;
}

.mobile-drawer.open .drawer-link:nth-child(4) {
  transition-delay: 0.18s;
}

.mobile-drawer.open .drawer-link:nth-child(5) {
  transition-delay: 0.22s;
}

.mobile-drawer.open .drawer-link:nth-child(6) {
  transition-delay: 0.26s;
}

.mobile-drawer.open .drawer-link:nth-child(7) {
  transition-delay: 0.30s;
}

.drawer-link:hover {
  color: var(--accent);
}

.drawer-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--grad-primary);
  color: var(--text-on-accent);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 15px;
}

/* ══════════════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════════════ */
.hero-section {
  position: relative;
  min-height: 100vh;
  background: var(--grad-hero);
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-blobs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
}

.blob-1 {
  width: 600px;
  height: 600px;
  top: -150px;
  left: -100px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.45), transparent 70%);
  animation: blobFloat 14s ease-in-out infinite;
}

.blob-2 {
  width: 500px;
  height: 500px;
  bottom: -100px;
  right: -80px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.30), transparent 70%);
  animation: blobFloat 16s ease-in-out infinite reverse;
}

.blob-3 {
  width: 350px;
  height: 350px;
  top: 20%;
  right: 8%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.20), transparent 70%);
  animation: blobFloat 11s ease-in-out infinite 2s;
}

.blob-4 {
  width: 300px;
  height: 300px;
  bottom: 15%;
  left: 5%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12), transparent 70%);
  animation: blobFloat 18s ease-in-out infinite 1s;
}

@keyframes blobFloat {

  0%,
  100% {
    transform: translate(0, 0)scale(1);
  }

  33% {
    transform: translate(30px, -20px)scale(1.05);
  }

  66% {
    transform: translate(-20px, 20px)scale(0.95);
  }
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(99, 102, 241, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(99, 102, 241, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.particles-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(var(--nav-h)+60px) 32px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  width: 100%;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.ch-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent2);
  width: fit-content;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.5vw, 70px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -2px;
  color: var(--text-primary);
}

.hero-sub {
  font-size: clamp(14px, 1.6vw, 17px);
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.8;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.ch-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: var(--grad-primary);
  color: var(--text-on-accent);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 16px;
  font-family: var(--font-body);
  transition: var(--transition-bounce);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.40);
  white-space: nowrap;
}

.ch-btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(99, 102, 241, 0.55);
}

.ch-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 16px;
  font-family: var(--font-body);
  backdrop-filter: blur(10px);
  transition: var(--transition-bounce);
  white-space: nowrap;
}

.ch-btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
  flex-shrink: 0;
}

/* Phone Mockup */
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 50px 30px;
}

.ch-phone-wrap {
  animation: phoneFloat 4s ease-in-out infinite;
  position: relative;
  z-index: 3;
}

@keyframes phoneFloat {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-14px);
  }
}

.ch-phone {
  width: 280px;
  height: 580px;
  background: var(--bg-secondary);
  border-radius: 44px;
  border: 2px solid var(--border-glow);
  box-shadow: var(--shadow-phone), var(--shadow-inset);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.phone-status-bar {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px 6px;
  flex-shrink: 0;
}

.phone-notch {
  width: 80px;
  height: 6px;
  background: var(--phone-notch-bg);
  border-radius: 3px;
}

.phone-status-icons {
  display: flex;
  gap: 6px;
  font-size: 9px;
  color: var(--text-muted);
}

.phone-app-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 16px 8px;
  flex-shrink: 0;
}

.phone-app-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent2);
}

.phone-header-icons {
  display: flex;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
}

.phone-search-bar {
  width: calc(100% - 24px);
  margin: 0 12px;
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.phone-search-bar i {
  font-size: 11px;
  color: var(--accent);
}

.phone-cats {
  display: flex;
  gap: 6px;
  padding: 8px 12px;
  overflow: hidden;
  flex-shrink: 0;
}

.phone-cat-pill {
  padding: 4px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 9px;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.phone-cat-pill.active {
  background: var(--bg-icon);
  border-color: var(--accent);
  color: var(--accent2);
}

.phone-grid {
  width: calc(100% - 24px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin: 0 12px;
  flex-shrink: 0;
}

.phone-grid-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 10px 4px;
  border-radius: 12px;
  font-size: 8px;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.phone-grid-item i {
  font-size: 16px;
}

.pg-blue {
  background: rgba(99, 102, 241, 0.10);
  color: var(--accent2);
}

.pg-violet {
  background: rgba(139, 92, 246, 0.10);
  color: var(--accent-violet);
}

.pg-green {
  background: rgba(16, 185, 129, 0.10);
  color: var(--accent-green);
}

.pg-orange {
  background: rgba(245, 158, 11, 0.10);
  color: var(--accent-amber);
}

.pg-teal {
  background: rgba(6, 182, 212, 0.10);
  color: var(--accent-cyan);
}

.pg-pink {
  background: rgba(236, 72, 153, 0.10);
  color: var(--accent-pink);
}

.phone-recent {
  width: calc(100% - 24px);
  margin: 8px 12px 0;
  flex-shrink: 0;
}

.phone-recent-header {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.phone-recent-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.pri-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--bg-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--accent2);
  flex-shrink: 0;
}

.pri-info {
  flex: 1;
}

.pri-name {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-primary);
}

.pri-result {
  font-size: 9px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.phone-bottom-nav {
  width: 100%;
  display: flex;
  justify-content: space-around;
  padding: 10px 8px 14px;
  margin-top: auto;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.phone-nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--text-muted);
  transition: var(--transition);
  flex: 1;
}

.phone-nav-btn.active {
  color: var(--accent2);
}

.phone-nav-btn i {
  font-size: 14px;
}

.phone-nav-btn span {
  font-size: 8px;
  font-weight: 500;
}

/* Floating cards */
.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  z-index: 4;
  box-shadow: var(--shadow-float);
  animation: floatCard 4s ease-in-out infinite;
}

.float-card i {
  font-size: 16px;
  color: var(--accent2);
  flex-shrink: 0;
}

.fc-label {
  display: block;
  font-size: 9px;
  color: var(--text-muted);
  font-weight: 500;
}

.fc-value {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
}

.float-card-1 {
  top: 20px;
  left: -5px;
  animation-delay: 0s;
}

.float-card-2 {
  top: 20px;
  right: -5px;
  animation-delay: 0.7s;
}

.float-card-3 {
  bottom: 120px;
  left: -15px;
  animation-delay: 1.4s;
}

.float-card-4 {
  bottom: 120px;
  right: -15px;
  animation-delay: 2.1s;
}

.float-card-5 {
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 2.8s;
}

@keyframes floatCard {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

.float-card-5 {
  animation: floatCard5 4s ease-in-out 2.8s infinite;
}

@keyframes floatCard5 {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(-10px);
  }
}

/* ══════════════════════════════════════════════════════════════════
   COUNTER STRIP
══════════════════════════════════════════════════════════════════ */
.counter-strip {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.cs-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 0 40px;
}

.cs-value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 900;
}

.cs-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.cs-div {
  width: 1px;
  height: 48px;
  background: var(--border);
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════════════════
   SHARED SECTION STYLES
══════════════════════════════════════════════════════════════════ */
.section-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent2);
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 52px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ══════════════════════════════════════════════════════════════════
   CATEGORIES
══════════════════════════════════════════════════════════════════ */
.section-categories {
  padding: 100px 0;
  background: var(--bg-primary);
}

.category-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 56px;
}

.cat-chip {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  transition: var(--transition);
  cursor: pointer;
}

.cat-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--bg-icon);
  transform: translateY(-2px);
}

.cat-panels {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cat-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.cat-panel:hover {
  border-color: var(--border-glow);
}

.cat-panel-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  cursor: pointer;
  background: var(--bg-card);
  transition: var(--transition);
}

.cat-panel-header:hover {
  background: var(--bg-icon);
}

.cat-panel-header[aria-expanded="true"] {
  background: var(--bg-icon);
}

.cph-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.cph-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.cph-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  display: block;
}

.cph-count {
  font-size: 12px;
  color: var(--text-muted);
}

.cph-arrow {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.cat-panel-header[aria-expanded="true"] .cph-arrow {
  transform: rotate(180deg);
}

.cat-panel-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.cat-panel-body.open {
  max-height: 600px;
}

.cpb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 8px;
  padding: 20px 24px;
}

.cpb-grid span {
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: default;
}

.cpb-grid span:hover {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--bg-icon);
}

.cpb-disclaimer {
  padding: 0 24px 16px;
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  line-height: 1.6;
}

.cpb-disclaimer i {
  color: var(--accent-cyan);
  font-size: 12px;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ══════════════════════════════════════════════════════════════════
   FINANCE
══════════════════════════════════════════════════════════════════ */
.section-finance {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.finance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}

.finance-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
}

.finance-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.fc-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.fc-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--fc-color, var(--accent2));
  flex-shrink: 0;
}

.fc-header h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.fc-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.fc-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.fc-flow-step {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  flex: 1;
  min-width: 90px;
}

.ffs-label {
  font-size: 10px;
  color: var(--text-muted);
}

.ffs-val {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.ffs-arrow {
  color: var(--accent);
  font-size: 12px;
  flex-shrink: 0;
}

.fc-disclaimer {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 10px;
  background: rgba(99, 102, 241, 0.04);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  line-height: 1.5;
}

.fc-disclaimer i {
  color: var(--accent-cyan);
  flex-shrink: 0;
  font-size: 11px;
  margin-top: 1px;
}

.fc-chart-bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 80px;
}

.fcb-bar {
  flex: 1;
  border-radius: 6px 6px 0 0;
  background: var(--bg-icon);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 4px;
  font-size: 9px;
  color: var(--text-muted);
  transition: var(--transition);
}

.fcb-bar:hover {
  background: var(--grad-primary);
  color: #fff;
}

.fcb-bar--accent {
  background: var(--grad-primary);
  color: #fff;
}

div[style*="--h"] {
  height: var(--h);
}

.fc-result-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.fcr-label {
  color: var(--text-secondary);
}

.fcr-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 800;
}

.fcr-rate {
  font-size: 12px;
  color: var(--text-muted);
  padding: 3px 8px;
  background: var(--bg-card);
  border-radius: var(--radius-full);
}

.fc-timeline {
  display: flex;
  align-items: center;
  gap: 0;
}

.fct-point {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.fct-point span:first-child {
  font-size: 10px;
  color: var(--text-muted);
}

.fct-point span:last-child {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.fct-retire span:last-child {
  font-size: 15px;
}

.fct-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 4px;
  margin-top: -12px;
}

.fc-breakdown {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fbd-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-secondary);
}

.fbd-deduct {
  color: var(--accent-rose);
}

.fbd-net {
  background: var(--bg-icon);
  font-weight: 700;
  color: var(--text-primary);
}

.fc-debt-vis {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fdv-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fdv-bar {
  height: 8px;
  border-radius: 4px;
  background: var(--grad-primary);
  width: var(--w);
  transition: width 0.6s ease;
}

.fdv-interest {
  background: linear-gradient(90deg, var(--accent-rose), #ff8080);
}

.fdv-payoff {
  background: linear-gradient(90deg, var(--accent-green), #6ee7b7);
}

.fdv-item span {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.fc-util-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.fc-util-pills span {
  padding: 5px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.fc-util-pills span:hover {
  border-color: var(--accent);
  color: var(--accent2);
}

/* ══════════════════════════════════════════════════════════════════
   HEALTH
══════════════════════════════════════════════════════════════════ */
.section-health {
  padding: 100px 0;
  background: var(--bg-primary);
}

.health-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.health-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
}

.health-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.hc-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.hc-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--hc-color, var(--accent-green));
  flex-shrink: 0;
}

.hc-header h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.hc-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.hc-bmi-visual {
  padding: 12px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
}

.bmi-scale {
  display: flex;
  gap: 3px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 8px;
}

.bmi-zone {
  flex: 1;
  padding: 6px 4px;
  font-size: 9px;
  font-weight: 600;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  background: var(--bg-icon);
}

.bmi-under {
  background: rgba(59, 130, 246, 0.4);
}

.bmi-normal {
  background: rgba(16, 185, 129, 0.4);
}

.bmi-over {
  background: rgba(245, 158, 11, 0.4);
}

.bmi-obese {
  background: rgba(239, 68, 68, 0.4);
}

.bmi-active {
  outline: 2px solid var(--accent-green);
  outline-offset: 2px;
}

.bmi-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
}

.hc-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.hc-chips span {
  padding: 4px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 11px;
  color: var(--text-secondary);
}

.hc-disclaimer {
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 10px;
  background: rgba(99, 102, 241, 0.04);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  line-height: 1.5;
}

.hc-disclaimer i {
  color: var(--accent-cyan);
  flex-shrink: 0;
  font-size: 11px;
  margin-top: 1px;
}

.hc-pregnancy-timeline {
  display: flex;
  align-items: center;
}

.hpt-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.hpt-week {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--text-primary);
}

.hpt-label {
  font-size: 9px;
  color: var(--text-muted);
}

.hpt-active .hpt-label {
  color: var(--accent-pink);
}

.hpt-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 4px;
  margin-top: -10px;
}

.hc-macro-bars {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hmb-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
}

.hmb-item span:first-child {
  width: 60px;
  color: var(--text-secondary);
}

.hmb-bar {
  flex: 1;
  height: 6px;
  background: var(--phone-track);
  border-radius: 3px;
  overflow: hidden;
}

.hmb-fill {
  height: 100%;
  border-radius: 3px;
}

.hmb-protein {
  background: linear-gradient(90deg, var(--accent), var(--accent2));
}

.hmb-carbs {
  background: linear-gradient(90deg, var(--accent-amber), #fbbf24);
}

.hmb-fats {
  background: linear-gradient(90deg, var(--accent-rose), #ff8080);
}

.hmb-item span:last-child {
  width: 32px;
  text-align: right;
  font-weight: 600;
  color: var(--text-primary);
}

/* ══════════════════════════════════════════════════════════════════
   SCIENCE / MATH
══════════════════════════════════════════════════════════════════ */
.section-science {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.science-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 80px;
}

.sci-calc-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sci-display {
  padding: 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.sci-expr {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  word-break: break-all;
}

.sci-result {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  margin-top: 8px;
}

.sci-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.sci-btn {
  padding: 10px 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.sci-btn:hover {
  background: var(--bg-icon);
  border-color: var(--accent);
}

.sci-fn {
  background: var(--bg-icon);
  color: var(--accent2);
  border-color: var(--border-icon);
}

.sci-op {
  color: var(--accent-amber);
}

.sci-accent {
  background: var(--grad-primary);
  color: #fff;
  border: none;
}

.sci-mode-row {
  display: flex;
  gap: 8px;
}

.sci-mode-pill {
  flex: 1;
  text-align: center;
  padding: 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.sci-mode-pill.active {
  background: var(--bg-icon);
  border-color: var(--accent);
  color: var(--accent2);
}

.sci-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.sci-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition);
}

.sci-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.scc-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--sc-color, var(--accent2));
}

.sci-card h4 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
}

.sci-card p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Step-by-step */
.step-by-step {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.sbs-header h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--text-primary);
  margin: 10px 0 8px;
}

.sbs-header p {
  font-size: 15px;
  color: var(--text-secondary);
}

.sbs-demo {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sbs-input {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.sbs-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sbs-expr {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--accent2);
}

.sbs-step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.sbs-step-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: var(--bg-icon);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.sbs-step-text {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
}

.sbs-step-text strong {
  color: var(--text-primary);
}

.sbs-result {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  border-radius: var(--radius-md);
}

.sbs-res-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.sbs-res-val {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 900;
}

/* ══════════════════════════════════════════════════════════════════
   UTILITY
══════════════════════════════════════════════════════════════════ */
.section-utility {
  padding: 100px 0;
  background: var(--bg-primary);
}

.utility-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.util-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
}

.util-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.uc-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--uc-color, var(--accent2));
}

.util-card h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
}

.util-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.uc-convert {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.uc-convert span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  padding: 4px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* ══════════════════════════════════════════════════════════════════
   FEATURES
══════════════════════════════════════════════════════════════════ */
.section-features {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 80px;
}

.feat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
}

.feat-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.feat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--fi, var(--accent2));
  border: 1px solid var(--border-icon);
}

.feat-card h4 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  color: var(--text-primary);
}

.feat-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Smart Assistant */
.assistant-showcase {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.as-header h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 900;
  color: var(--text-primary);
  margin: 10px 0 8px;
}

.as-header p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.as-chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.as-msg {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.as-msg i {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.as-user i {
  background: var(--bg-icon);
  color: var(--accent2);
}

.as-bot i {
  background: var(--grad-primary);
  color: #fff;
}

.as-user span {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  line-height: 1.6;
}

.as-bot-body {
  padding: 12px 14px;
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.as-formula {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent2);
  padding: 6px 10px;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
}

.as-steps {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.as-answer {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ══════════════════════════════════════════════════════════════════
   ANDROID
══════════════════════════════════════════════════════════════════ */
.section-android {
  padding: 100px 0;
  background: var(--bg-primary);
}

.device-showcase {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.device-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.device-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.device-phone {
  width: 180px;
  height: 360px;
  background: var(--bg-secondary);
  border-radius: 28px;
  border: 2px solid var(--border-glow);
  box-shadow: var(--shadow-phone);
  overflow: hidden;
}

.device-tablet {
  width: 340px;
  height: 220px;
  background: var(--bg-secondary);
  border-radius: 18px;
  border: 2px solid var(--border-glow);
  box-shadow: var(--shadow-phone);
  overflow: hidden;
}

.dev-screen {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 14px;
  gap: 10px;
  background: var(--bg-secondary);
}

.dev-header {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dev-calc-display {
  padding: 10px;
  background: var(--bg-primary);
  border-radius: 8px;
  text-align: right;
}

.dev-expr {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
}

.dev-result {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
}

.dev-btn-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  flex: 1;
}

.dev-btn-grid span {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.db-fn {
  background: var(--bg-icon);
  color: var(--accent2);
}

.db-op {
  color: var(--accent-amber);
}

.db-accent {
  background: var(--grad-primary);
  color: #fff;
  border: none;
}

.dev-screen--tablet {
  flex-direction: row;
  padding: 10px;
  gap: 10px;
}

.dev-tab-sidebar {
  width: 40px;
  background: var(--bg-primary);
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  font-size: 13px;
  color: var(--text-muted);
}

.dev-tab-sidebar i:first-child {
  color: var(--accent2);
}

.dev-tab-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dev-tab-fields {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.dtf-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  padding: 6px 10px;
  background: var(--bg-card);
  border-radius: 6px;
  color: var(--text-secondary);
}

.dtf-result {
  background: var(--bg-icon);
  font-weight: 700;
  color: var(--text-primary);
}

/* Theme showcase */
.theme-showcase {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-card);
  cursor: pointer;
  transition: var(--transition);
  margin: 0 4px;
}

.theme-toggle-btn.active {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--bg-icon);
}

.ts-preview {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  max-width: 380px;
  width: 100%;
}

.tsp-screen {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tsp-screen.hidden {
  display: none;
}

.tsp-dark {
  background: #06060f;
}

.tsp-header {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent2);
}

.tsp-display {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 800;
  color: #f0f0ff;
  text-align: right;
}

.tsp-expr {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #555580;
  text-align: right;
}

.tsp-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.tsp-buttons span {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  color: #a8a8d0;
  cursor: pointer;
}

.tsb-fn {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
}

.tsb-op {
  color: #f59e0b;
}

.tsb-accent {
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #fff;
  border: none;
}

/* Light theme preview */
.tsp-light {
  background: #f5f5ff;
}

.tsp-lh {
  color: #4f46e5;
}

.tsp-ld {
  color: #0a0a1a;
}

.tsp-le {
  color: #6a6a9a;
}

.tsp-lb span {
  background: rgba(99, 102, 241, 0.06);
  border-color: rgba(99, 102, 241, 0.12);
  color: #2a2a4a;
}

.tsb-fn-l {
  background: rgba(99, 102, 241, 0.10);
  color: #4f46e5;
}

.tsb-op-l {
  color: #d97706;
}

.tsb-digit {
  color: #0a0a1a;
}

.tsb-accent-l {
  background: linear-gradient(135deg, #4f46e5, #0891b2);
  color: #fff;
  border: none;
}

/* ══════════════════════════════════════════════════════════════════
   DOWNLOAD
══════════════════════════════════════════════════════════════════ */
.section-download {
  position: relative;
  padding: 120px 0;
  overflow: hidden;
  background: var(--grad-download);
}

.dl-blobs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.dl-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}

.dl-blob-1 {
  width: 500px;
  height: 500px;
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.5), transparent 70%);
  animation: blobFloat 12s ease-in-out infinite;
}

.dl-blob-2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  right: -100px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.4), transparent 70%);
  animation: blobFloat 15s ease-in-out infinite reverse;
}

.download-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.download-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.download-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.ds-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--accent2);
}

.download-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.download-btn-primary {
  padding: 18px 44px;
  font-size: 18px;
}

.download-btn-primary span {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
}

.download-btn-primary small {
  font-size: 11px;
  opacity: 0.85;
  font-weight: 400;
}

/* ══════════════════════════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════════════════════════ */
.ch-footer {
  padding: 80px 0 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px 60px;
  display: grid;
  grid-template-columns: 1.4fr 1.4fr 1fr;
  gap: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}

.footer-logo-name {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-muted);
  font-style: italic;
}

.footer-play-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
  width: fit-content;
}

.footer-play-btn:hover {
  border-color: var(--accent);
}

.footer-play-btn i {
  font-size: 20px;
  color: var(--accent2);
}

.footer-play-btn span {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.footer-play-btn small {
  font-size: 10px;
  color: var(--text-muted);
}

.footer-play-btn span:last-child {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--accent2);
}

.footer-links i {
  font-size: 11px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 32px;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-disclaimer {
  font-size: 11px;
  color: var(--text-muted);
  max-width: 500px;
  text-align: right;
  line-height: 1.5;
}

/* Sticky Play */
.sticky-play-wrap {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 900;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-bounce);
}

.sticky-play-wrap.visible {
  transform: translateY(0);
  opacity: 1;
}

.sticky-play-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--grad-primary);
  color: var(--text-on-accent);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.45);
  transition: var(--transition-bounce);
}

.sticky-play-btn:hover {
  transform: scale(1.05);
}

.sticky-play-btn i {
  font-size: 16px;
}

/* ══════════════════════════════════════════════════════════════════
   SEARCH
══════════════════════════════════════════════════════════════════ */
.section-search {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.search-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.search-demo {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sd-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-primary);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  box-shadow: var(--shadow-glow);
}

.sd-icon {
  color: var(--accent2);
  font-size: 15px;
  flex-shrink: 0;
}

.sd-text {
  flex: 1;
}

.sd-cursor {
  color: var(--accent);
  animation: cursorBlink 1s ease-in-out infinite;
}

@keyframes cursorBlink {

  0%,
  100% {
    opacity: 1
  }

  50% {
    opacity: 0
  }
}

.sd-results {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sd-section-label {
  padding: 8px 16px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.sd-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
}

.sd-result-item:last-child {
  border-bottom: none;
}

.sd-result-item:hover {
  background: var(--bg-icon);
}

.sdr-active {
  background: var(--bg-icon);
}

.sdr-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}

.sdr-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sdr-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.sdr-cat {
  font-size: 11px;
  color: var(--text-muted);
}

.sdr-arrow {
  font-size: 12px;
  color: var(--text-muted);
}

.sd-popular {
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.sdp-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.sdp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sdp-chips span {
  padding: 5px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.sdp-chips span:hover {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--bg-icon);
}

.search-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 8px;
}

.sf-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.sf-item:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.sf-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--sf-c, var(--accent2));
  flex-shrink: 0;
}

.sf-item h4 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.sf-item p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ══════════════════════════════════════════════════════════════════
   FAVORITES & HISTORY
══════════════════════════════════════════════════════════════════ */
.section-favorites {
  padding: 100px 0;
  background: var(--bg-primary);
}

.favhist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.fh-panel {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.fhp-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.fhp-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--fhp-c, var(--accent2));
  flex-shrink: 0;
}

.fhp-header h3 {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.fhp-header p {
  font-size: 12px;
  color: var(--text-muted);
}

.fhp-fav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.ffg-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.ffg-item i {
  font-size: 18px;
}

.ffg-active {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--bg-icon);
}

.ffg-add {
  border-style: dashed;
  color: var(--text-muted);
}

.ffg-add:hover {
  border-color: var(--accent);
  color: var(--accent2);
}

.fhp-recent {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fhr-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.fhr-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.fhr-item:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.fhr-icon {
  color: var(--accent2);
  font-size: 14px;
  flex-shrink: 0;
}

.fhr-time {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hl-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.hl-item:hover {
  border-color: var(--border-glow);
}

.hl-expr {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
}

.hl-calc {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
}

.hl-eq {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hl-result {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
}

.hl-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.hla-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--accent2);
  cursor: pointer;
  transition: var(--transition);
}

.hla-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.hl-footer {
  display: flex;
  justify-content: flex-end;
  padding-top: 4px;
}

.hl-clear-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.20);
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-rose);
  cursor: pointer;
  transition: var(--transition);
}

.hl-clear-btn:hover {
  background: rgba(239, 68, 68, 0.15);
  border-color: var(--accent-rose);
}

/* ══════════════════════════════════════════════════════════════════
   FORMULA LIBRARY
══════════════════════════════════════════════════════════════════ */
.section-formulas {
  padding: 100px 0;
  background: var(--bg-secondary);
}

.fl-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 40px;
}

.fl-tab {
  padding: 8px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}

.fl-tab:hover {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--bg-icon);
}

.fl-tab-active {
  background: var(--bg-icon);
  border-color: var(--accent);
  color: var(--accent2);
}

.formula-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.formula-card {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: var(--transition);
}

.formula-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-glow);
}

.fmc-top {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fmc-category {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.fmc-formula {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent2);
  padding: 10px 14px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.fmc-vars {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fmv-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

.fmv-sym {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent2);
  width: 28px;
  flex-shrink: 0;
}

.fmc-example {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.fmce-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.fmce-val {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-green);
}

/* ══════════════════════════════════════════════════════════════════
   PERFORMANCE & ACCURACY
══════════════════════════════════════════════════════════════════ */
.section-performance {
  padding: 100px 0;
  background: var(--bg-primary);
}

.perf-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.perf-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.perf-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.perf-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.perf-item:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
}

.pi-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--pi-c, var(--accent2));
  flex-shrink: 0;
}

.perf-item h4 {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.perf-item p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.trust-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.trust-card {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.trust-card:hover {
  border-color: var(--border-glow);
}

.tc-icon {
  font-size: 20px;
  color: var(--accent2);
  flex-shrink: 0;
  margin-top: 2px;
}

.trust-card h4 {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.trust-card p {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.trust-disclaimer {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px;
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  border-radius: var(--radius-md);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-top: 8px;
}

.trust-disclaimer i {
  color: var(--accent-cyan);
  flex-shrink: 0;
  font-size: 14px;
  margin-top: 1px;
}

/* ══════════════════════════════════════════════════════════════════
   CALCULATOR SHOWCASE
══════════════════════════════════════════════════════════════════ */
.section-calculators {
  padding: 100px 0;
  background: var(--bg-secondary);
}

/* Mode switcher */
.calc-mode-switcher {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 4px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.cms-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
  font-family: var(--font-display);
}

.cms-btn:hover {
  color: var(--accent2);
}

.cms-active {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
}

/* Demo grid */
.calc-demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 56px;
}

/* Phone shell */
.calc-phone-wrap {
  display: flex;
  justify-content: center;
  animation: phoneFloat 4s ease-in-out infinite;
}

.calc-phone {
  width: 300px;
  background: var(--bg-primary);
  border-radius: 44px;
  border: 2px solid var(--border-glow);
  box-shadow: var(--shadow-phone), var(--shadow-inset);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.calc-phone--sci {
  width: 320px;
}

.calc-phone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 18px 4px;
  font-size: 9px;
  color: var(--text-muted);
}

.calc-status-icons {
  display: flex;
  gap: 4px;
}

.calc-app-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px 8px;
  border-bottom: 1px solid var(--border);
}

.calc-app-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent2);
  flex: 1;
}

.calc-icon-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.calc-icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent2);
}

/* Angle mode group */
.angle-mode-group {
  display: flex;
  gap: 2px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 2px;
}

.am-btn {
  padding: 3px 8px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  background: none;
}

.am-active {
  background: var(--accent);
  color: #fff;
}

/* Display area */
.calc-display {
  padding: 12px 16px 8px;
  min-height: 80px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 2px;
  position: relative;
}

.calc-display--sci {
  min-height: 96px;
}

.calc-memory-indicator {
  position: absolute;
  top: 8px;
  left: 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--accent2);
  opacity: 0;
  transition: var(--transition);
}

.calc-memory-indicator.visible {
  opacity: 1;
}

.sci-steps-preview {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  line-height: 1.5;
  min-height: 0;
  max-height: 48px;
  overflow: hidden;
  transition: var(--transition);
}

.calc-expr {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-secondary);
  text-align: right;
  word-break: break-all;
  line-height: 1.4;
  min-height: 18px;
}

.calc-result {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  text-align: right;
  line-height: 1.2;
  min-height: 32px;
}

.calc-error {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-rose);
  text-align: right;
  min-height: 0;
  transition: var(--transition);
}

/* Memory row */
.calc-mem-row {
  display: flex;
  gap: 4px;
  padding: 4px 10px;
  border-top: 1px solid var(--border);
}

.calc-mem-btn {
  flex: 1;
  padding: 6px 2px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.calc-mem-btn:hover {
  border-color: var(--accent);
  color: var(--accent2);
  background: var(--bg-icon);
}

.calc-mem-btn:active {
  transform: scale(0.95);
}

/* Keypad — Basic (4-col) */
.calc-keypad {
  display: grid;
  gap: 5px;
  padding: 8px 10px 16px;
}

.basic-keypad {
  grid-template-columns: repeat(4, 1fr);
}

/* Keypad — Scientific (5-col) */
.sci-keypad {
  grid-template-columns: repeat(5, 1fr);
}

/* Calculator keys */
.ck {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  height: 42px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--border);
  user-select: none;
  -webkit-user-select: none;
}

.ck:active {
  transform: scale(0.92);
}

.ck-num {
  background: var(--bg-card);
  color: var(--text-primary);
}

.ck-num:hover {
  background: var(--bg-icon);
  border-color: var(--accent);
}

.ck-op {
  background: rgba(245, 158, 11, 0.10);
  color: var(--accent-amber);
  border-color: rgba(245, 158, 11, 0.20);
  font-size: 15px;
}

.ck-op:hover {
  background: rgba(245, 158, 11, 0.18);
}

.ck-util {
  background: var(--bg-icon);
  color: var(--accent2);
  border-color: var(--border-icon);
}

.ck-util:hover {
  background: rgba(99, 102, 241, 0.20);
}

.ck-fn {
  background: rgba(99, 102, 241, 0.08);
  color: var(--accent3);
  border-color: rgba(99, 102, 241, 0.15);
  font-size: 11px;
}

.ck-fn:hover {
  background: rgba(99, 102, 241, 0.18);
  border-color: var(--accent);
}

.ck-const {
  background: rgba(16, 185, 129, 0.10);
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.20);
}

.ck-const:hover {
  background: rgba(16, 185, 129, 0.20);
}

.ck-del {
  background: rgba(239, 68, 68, 0.08);
  color: var(--accent-rose);
  border-color: rgba(239, 68, 68, 0.15);
}

.ck-del:hover {
  background: rgba(239, 68, 68, 0.18);
}

.ck-eq {
  background: var(--grad-primary);
  color: #fff;
  border: none;
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.40);
}

.ck-eq:hover {
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.55);
}

.ck-span2 {
  grid-column: span 2;
}

/* History drawer */
.calc-history-drawer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top: 2px solid var(--border-glow);
  border-radius: 0 0 42px 42px;
  max-height: 65%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  z-index: 10;
  transition: var(--transition);
}

.calc-history-drawer[hidden] {
  display: none;
}

.chd-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.chd-clear {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-rose);
  cursor: pointer;
  border: none;
  background: none;
}

.chd-list {
  overflow-y: auto;
  flex: 1;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chd-empty {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding: 12px;
}

.chd-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.chd-item:hover {
  border-color: var(--accent);
}

.chd-expr {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chd-res {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent2);
  flex-shrink: 0;
}

.chd-copy {
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: var(--transition);
}

.chd-copy:hover {
  color: var(--accent2);
}

.calc-phone {
  position: relative;
}

/* Feature list */
.calc-features {
  padding: 24px 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cf-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  color: var(--text-primary);
}

.cf-sub {
  font-size: 14px;
  color: var(--text-muted);
}

.cf-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}

.cf-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
}

.cf-list li i {
  color: var(--accent2);
  font-size: 13px;
  flex-shrink: 0;
}

/* Steps strip */
.calc-steps-strip {
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 40px;
}

.css-header {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.css-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--accent2);
}

.css-header h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 900;
  color: var(--text-primary);
}

.css-header p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.css-demo {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cssd-input {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.cssd-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.cssd-expr {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--accent2);
}

.cssd-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--text-secondary);
}

.cssd-step strong {
  color: var(--text-primary);
}

.cssd-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: var(--bg-icon);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  flex-shrink: 0;
}

.cssd-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-icon);
  border: 1px solid var(--border-icon);
  border-radius: var(--radius-md);
}

.cssd-rlabel {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.cssd-rval {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 900;
}

/* Final CTA strip */
.calc-final-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}

.cfc-statement {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 680px;
}

.cfc-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* Light theme overrides for calculator keys */
[data-theme="light"] .ck-num {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
}

[data-theme="light"] .ck-op {
  background: rgba(184, 130, 0, 0.08);
  color: var(--accent-amber);
}

[data-theme="light"] .ck-util {
  background: rgba(79, 70, 229, 0.08);
  color: var(--accent);
}

[data-theme="light"] .ck-fn {
  background: rgba(79, 70, 229, 0.06);
  color: var(--accent);
}

[data-theme="light"] .ck-del {
  background: rgba(220, 38, 38, 0.06);
  color: var(--accent-rose);
}

[data-theme="light"] .ck-eq {
  background: var(--grad-primary);
  color: #fff;
}

[data-theme="light"] .calc-phone {
  background: var(--bg-secondary);
}

/* Responsive */
@media(max-width:1024px) {
  .calc-demo-grid {
    grid-template-columns: 1fr;
  }

  .calc-steps-strip {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media(max-width:768px) {
  .section-calculators {
    padding: 72px 0;
  }

  .calc-phone {
    width: 100%;
    max-width: 320px;
  }

  .calc-phone--sci {
    max-width: 340px;
  }

  .ck {
    height: 38px;
    font-size: 12px;
  }

  .ck-fn {
    font-size: 10px;
  }

  .calc-steps-strip {
    padding: 24px 20px;
  }
}

/* ══════════════════════════════════════════════════════════════════
   REDUCED MOTION
══════════════════════════════════════════════════════════════════ */
@media(prefers-reduced-motion:reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .ch-phone-wrap,
  .float-card,
  .blob {
    animation: none !important;
  }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — 1024px
══════════════════════════════════════════════════════════════════ */
@media(max-width:1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 48px;
  }

  .hero-content {
    align-items: center;
  }

  .hero-sub {
    text-align: center;
  }

  .hero-visual {
    display: none;
  }

  .hero-stats {
    justify-content: center;
  }

  .science-grid {
    grid-template-columns: 1fr;
  }

  .step-by-step {
    grid-template-columns: 1fr;
  }

  .assistant-showcase {
    grid-template-columns: 1fr;
  }

  .search-showcase {
    grid-template-columns: 1fr;
  }

  .favhist-grid {
    grid-template-columns: 1fr;
  }

  .perf-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — 768px
══════════════════════════════════════════════════════════════════ */
@media(max-width:768px) {
  :root {
    --nav-h: 64px;
  }

  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav-logo-by {
    display: none;
  }

  .section-container {
    padding: 0 20px;
  }

  .hero-container {
    padding: calc(var(--nav-h)+40px) 20px 60px;
  }

  .section-categories,
  .section-finance,
  .section-health,
  .section-science,
  .section-utility,
  .section-features,
  .section-android,
  .section-search,
  .section-favorites,
  .section-formulas,
  .section-performance,
  .section-download {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .finance-grid,
  .health-grid {
    grid-template-columns: 1fr;
  }

  .sci-cards {
    grid-template-columns: 1fr;
  }

  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

  .utility-grid {
    grid-template-columns: 1fr 1fr;
  }

  .cpb-grid {
    grid-template-columns: 1fr 1fr;
  }

  .formula-cards {
    grid-template-columns: 1fr;
  }

  .trust-cards {
    grid-template-columns: 1fr;
  }

  .fhp-fav-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .counter-strip {
    gap: 0;
    padding: 16px 20px;
  }

  .cs-item {
    padding: 0 16px;
  }

  .footer-container {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-disclaimer {
    text-align: center;
  }

  .hero-ctas {
    justify-content: center;
  }

  .download-ctas {
    flex-direction: column;
    align-items: center;
  }

  .device-showcase {
    gap: 24px;
  }

  .device-tablet {
    width: 100%;
    max-width: 340px;
  }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — 480px
══════════════════════════════════════════════════════════════════ */
@media(max-width:480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .utility-grid {
    grid-template-columns: 1fr;
  }

  .cpb-grid {
    grid-template-columns: 1fr;
  }

  .cs-div {
    display: none;
  }

  .counter-strip {
    flex-wrap: wrap;
  }

  .cs-item {
    padding: 12px 20px;
  }
}