/* ============================================
   FinePocket Design System
   Mobile-First | Bento Grid | Glassmorphism
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background-color: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
}

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

ul, ol {
  list-style: none;
}

/* ----------------------------------------
   CSS Variables - Light Mode (Default)
   ---------------------------------------- */
:root {
  /* Primary - Warm Coral/Orange (Brand Identity) */
  --primary-50: #FFF7F5;
  --primary-100: #FFEDE8;
  --primary-200: #FFD9CF;
  --primary-300: #FFB8A6;
  --primary-400: #FF8F73;
  --primary-500: #FF6B4A;
  --primary-600: #E5573A;
  --primary-700: #BF4530;
  --primary-800: #993626;
  --primary-900: #732A1F;

  /* Secondary - Soft Teal */
  --secondary-50: #F0FDFA;
  --secondary-100: #CCFBF1;
  --secondary-200: #99F6E4;
  --secondary-300: #5EEAD4;
  --secondary-400: #2DD4BF;
  --secondary-500: #14B8A6;
  --secondary-600: #0D9488;
  --secondary-700: #0F766E;
  --secondary-800: #115E59;
  --secondary-900: #134E4A;

  /* Neutrals - Warm Gray */
  --gray-50: #FAFAF9;
  --gray-100: #F5F5F4;
  --gray-200: #E7E5E4;
  --gray-300: #D6D3D1;
  --gray-400: #A8A29E;
  --gray-500: #78716C;
  --gray-600: #57534E;
  --gray-700: #44403C;
  --gray-800: #292524;
  --gray-900: #1C1917;

  /* Semantic Colors - Light Mode */
  --background: #FAFAF9;
  --surface: #FFFFFF;
  --surface-elevated: #FFFFFF;
  --text-primary: #1C1917;
  --text-secondary: #57534E;
  --text-muted: #A8A29E;
  --border: #E7E5E4;
  --border-subtle: #F5F5F4;

  /* Glassmorphism - Light Mode */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);

  /* App-Specific Accent Colors */
  --app-finebill: #3B82F6;
  --app-finebill-light: #DBEAFE;
  --app-bookary: #F59E0B;
  --app-bookary-light: #FEF3C7;
  --app-stedio: #8B5CF6;
  --app-stedio-light: #EDE9FE;
  --app-littory: #10B981;
  --app-littory-light: #D1FAE5;
  --app-finereader: #F43F5E;
  --app-finereader-light: #FFE4E6;
  --app-finetype: #06B6D4;
  --app-finetype-light: #CFFAFE;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

  /* Font Sizes - Mobile First */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Line Heights */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Letter Spacing */
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;

  /* Spacing */
  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Section Spacing */
  --section-padding-mobile: var(--space-12);
  --section-padding-desktop: var(--space-24);

  /* Container */
  --container-max: 1200px;
  --container-padding: var(--space-4);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;

  /* Shadows - Light Mode */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-primary: 0 20px 40px -10px rgba(255, 107, 74, 0.25);

  /* Animation Timing */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Container padding for tablet+ */
@media (min-width: 768px) {
  :root {
    --container-padding: var(--space-8);
  }
}

/* ----------------------------------------
   Dark Mode
   ---------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    --background: #0C0A09;
    --surface: #1C1917;
    --surface-elevated: #292524;
    --text-primary: #FAFAF9;
    --text-secondary: #A8A29E;
    --text-muted: #78716C;
    --border: #292524;
    --border-subtle: #1C1917;

    /* Glassmorphism - Dark Mode */
    --glass-bg: rgba(28, 25, 23, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);

    /* Shadows - Dark Mode */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
  }
}

/* ----------------------------------------
   Typography Classes
   ---------------------------------------- */
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: var(--text-6xl);
  }
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--text-primary);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-3xl);
  }
}

.card-title {
  font-family: var(--font-sans);
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: var(--leading-snug);
  color: var(--text-primary);
}

.body-text {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
}

.caption {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: var(--leading-normal);
  color: var(--text-muted);
}

/* ----------------------------------------
   Layout - Container & Section
   ---------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--section-padding-mobile) 0;
}

@media (min-width: 768px) {
  .section {
    padding: var(--section-padding-desktop) 0;
  }
}

.section--alt {
  background: var(--gray-50);
}

@media (prefers-color-scheme: dark) {
  .section--alt {
    background: var(--surface);
  }
}

/* ----------------------------------------
   Bento Grid Layout
   ---------------------------------------- */
.bento-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .bento-grid__item--featured {
    grid-column: span 2;
  }
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-16) var(--container-padding);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(255, 107, 74, 0.1) 0%,
    transparent 50%
  ),
  radial-gradient(
    circle at 70% 70%,
    rgba(20, 184, 166, 0.08) 0%,
    transparent 50%
  );
  z-index: -1;
  animation: heroGradient 20s ease-in-out infinite;
}

@keyframes heroGradient {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg);
  }
  50% {
    transform: translate(-5%, -5%) rotate(5deg);
  }
}

@media (prefers-color-scheme: dark) {
  .hero::before {
    background: radial-gradient(
      circle at 30% 30%,
      rgba(255, 107, 74, 0.15) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 70% 70%,
      rgba(20, 184, 166, 0.1) 0%,
      transparent 50%
    );
  }
}

.hero__content {
  max-width: 640px;
}

.hero__logo {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
  .hero__logo {
    width: 100px;
    height: 100px;
  }
}

.hero__subtitle {
  margin-top: var(--space-6);
  color: var(--text-secondary);
  font-size: var(--text-lg);
}

@media (min-width: 768px) {
  .hero__subtitle {
    font-size: var(--text-xl);
  }
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-10);
}

@media (min-width: 640px) {
  .hero__cta {
    flex-direction: row;
    justify-content: center;
  }
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--text-muted);
  font-size: var(--text-sm);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ----------------------------------------
   App Card Component
   ---------------------------------------- */
.app-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  border: 1px solid var(--border-subtle);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
  overflow: hidden;
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Glassmorphism variant */
.app-card--glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

/* App Icon */
.app-card__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .app-card__icon {
    width: 80px;
    height: 80px;
  }
}

/* Feature List */
.app-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  background: var(--gray-100);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

@media (prefers-color-scheme: dark) {
  .feature-tag {
    background: var(--gray-800);
  }
}

.app-card__actions {
  margin-top: var(--space-6);
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Info Card (About section) */
.info-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  border: 1px solid var(--border-subtle);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
  overflow: hidden;
}

.info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.info-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.info-card:hover::before {
  opacity: 1;
}

.info-card__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

/* ----------------------------------------
   Button Component
   ---------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-xl);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn:active {
  transform: scale(0.98);
}

/* Primary Button */
.btn--primary {
  background: var(--primary-500);
  color: white;
}

.btn--primary:hover {
  background: var(--primary-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}

/* Secondary/Outline Button */
.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn--secondary:hover {
  background: var(--gray-100);
  border-color: var(--gray-300);
}

@media (prefers-color-scheme: dark) {
  .btn--secondary:hover {
    background: var(--gray-800);
    border-color: var(--gray-700);
  }
}

/* Ghost Button */
.btn--ghost {
  background: transparent;
  color: var(--primary-500);
  padding: var(--space-2) var(--space-4);
}

.btn--ghost:hover {
  background: var(--primary-50);
}

@media (prefers-color-scheme: dark) {
  .btn--ghost:hover {
    background: rgba(255, 107, 74, 0.1);
  }
}

/* App Store Button */
.app-store-btn {
  display: inline-block;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.app-store-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.app-store-btn img {
  height: 44px;
  width: auto;
}

/* ----------------------------------------
   Desktop Header
   ---------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(250, 250, 249, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 100;
  display: none;
  transform: translateY(-100%);
  transition: transform 0.3s var(--ease-out);
}

.header--visible {
  transform: translateY(0);
}

@media (min-width: 768px) {
  .header {
    display: block;
  }
}

@media (prefers-color-scheme: dark) {
  .header {
    background: rgba(12, 10, 9, 0.8);
  }
}

.header__container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4) var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo img {
  height: 32px;
  width: auto;
}

.header__nav {
  display: flex;
  gap: var(--space-8);
}

.header__link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color 0.2s ease;
}

.header__link:hover,
.header__link--active {
  color: var(--primary-500);
}

/* ----------------------------------------
   Mobile Bottom Navigation
   ---------------------------------------- */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-2) var(--space-4);
  padding-bottom: calc(var(--space-2) + env(safe-area-inset-bottom));
  display: flex;
  justify-content: space-around;
  z-index: 100;
}

@media (min-width: 768px) {
  .bottom-nav {
    display: none;
  }
}

.bottom-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2);
  color: var(--text-muted);
  text-decoration: none;
  font-size: var(--text-xs);
  transition: color 0.2s ease;
  min-width: 64px;
}

.bottom-nav__item--active,
.bottom-nav__item:hover {
  color: var(--primary-500);
}

.bottom-nav__icon {
  width: 24px;
  height: 24px;
}

/* ----------------------------------------
   Support Section
   ---------------------------------------- */
.support-section {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  text-align: center;
}

.support-section .section-title {
  color: white;
}

.support-section .body-text {
  color: rgba(255, 255, 255, 0.9);
}

.support-section .btn--secondary {
  background: white;
  color: var(--primary-600);
  border: none;
}

.support-section .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.9);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer__brand {
  margin-bottom: var(--space-4);
}

.footer__brand-logo {
  height: 32px;
  width: auto;
  margin-bottom: var(--space-4);
  filter: brightness(0) invert(1);
}

.footer__column h4 {
  color: var(--gray-100);
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__link {
  color: var(--gray-400);
  font-size: var(--text-sm);
  transition: color 0.2s ease;
}

.footer__link:hover {
  color: var(--primary-400);
}

.footer__bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--gray-800);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__copyright {
  font-size: var(--text-sm);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social-link {
  color: var(--gray-400);
  transition: color 0.2s ease;
}

.footer__social-link:hover {
  color: var(--primary-400);
}

/* Add padding for bottom nav on mobile */
.footer {
  padding-bottom: calc(var(--space-8) + 80px);
}

@media (min-width: 768px) {
  .footer {
    padding-bottom: var(--space-8);
  }
}

/* ----------------------------------------
   Animations
   ---------------------------------------- */
/* Hover Scale */
.hover-scale {
  transition: transform 0.3s var(--ease-out);
}

.hover-scale:hover {
  transform: scale(1.02);
}

/* Hover Lift */
.hover-lift {
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Fade In Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.6s var(--ease-out) forwards;
}

/* Stagger children */
.stagger-children > * {
  opacity: 0;
  animation: fadeIn 0.6s var(--ease-out) forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.6s; }

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

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

/* ----------------------------------------
   About Page Styles
   ---------------------------------------- */
.about-hero {
  padding: calc(var(--space-24) + 60px) var(--container-padding) var(--space-16);
  text-align: center;
  background: linear-gradient(
    135deg,
    rgba(255, 107, 74, 0.08) 0%,
    transparent 50%,
    rgba(20, 184, 166, 0.05) 100%
  );
}

@media (prefers-color-scheme: dark) {
  .about-hero {
    background: linear-gradient(
      135deg,
      rgba(255, 107, 74, 0.12) 0%,
      transparent 50%,
      rgba(20, 184, 166, 0.08) 100%
    );
  }
}

.about-hero__content {
  max-width: 640px;
  margin: 0 auto;
}

.about-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
  }
}

.about-card {
  background: var(--surface);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  border: 1px solid var(--border-subtle);
}

.about-card__icon {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.about-products {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .about-products {
    grid-template-columns: repeat(2, 1fr);
  }
}

.about-product {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border: 1px solid var(--border-subtle);
}

.about-product__category {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--primary-500);
  margin-bottom: var(--space-4);
}

.about-product__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.about-product__list li {
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.about-product__list li strong {
  color: var(--text-primary);
}

/* About Brief Section (Main Page) */
.about-brief {
  text-align: center;
  padding: var(--space-12) var(--container-padding);
  background: var(--gray-50);
}

@media (prefers-color-scheme: dark) {
  .about-brief {
    background: var(--gray-900);
  }
}

.about-brief p {
  max-width: 400px;
  margin: 0 auto var(--space-4);
}