/**
 * PortfolioJournal - Apple-inspired Design System
 * Clean, minimal, accessible
 */

/* ========================================
   CSS Custom Properties (Design Tokens)
   ======================================== */

:root {
  /* Colors - Light Mode */
  --color-bg: #ffffff;
  --color-bg-secondary: #f5f5f7;
  --color-bg-tertiary: #fafafa;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;

  --color-text: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-text-tertiary: #86868b;

  --color-primary: #4b7bf2;
  --color-primary-hover: #3f6fe6;
  --color-primary-active: #3563d9;

  --color-accent: #58b77a;
  --color-accent-secondary: #e9a23b;
  --color-warning: #ff9500;
  --color-error: #ff3b30;

  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: rgba(0, 0, 0, 0.12);
  --color-divider: rgba(0, 0, 0, 0.06);

  /* Gradients */
  --gradient-hero: linear-gradient(180deg, #f5f5f7 0%, #ffffff 100%);
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #fafafa 100%);
  --gradient-accent: linear-gradient(135deg, #4b7bf2 0%, #58b77a 100%);
  --gradient-blob-1: radial-gradient(circle at 30% 20%, rgba(75, 123, 242, 0.12) 0%, transparent 50%);
  --gradient-blob-2: radial-gradient(circle at 70% 80%, rgba(233, 162, 59, 0.1) 0%, transparent 50%);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06), 0 0 1px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.1), 0 0 1px rgba(0, 0, 0, 0.1);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', SFMono-Regular, ui-monospace, Menlo, Monaco, 'Cascadia Code', monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.5rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;

  --letter-spacing-tight: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;

  /* Spacing */
  --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;
  --space-32: 8rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  --transition-bounce: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;

  /* Layout */
  --max-width-content: 980px;
  --max-width-text: 680px;
  --nav-height: 52px;
}

/* Dark Mode */
[data-theme="dark"] {
  --color-bg: #000000;
  --color-bg-secondary: #1c1c1e;
  --color-bg-tertiary: #2c2c2e;
  --color-surface: #1c1c1e;
  --color-surface-elevated: #2c2c2e;

  --color-text: #f5f5f7;
  --color-text-secondary: #a1a1a6;
  --color-text-tertiary: #8e8e93;

  --color-primary: #6f93ff;
  --color-primary-hover: #82a2ff;
  --color-primary-active: #5a7fe6;

  --color-accent: #72d39a;
  --color-accent-secondary: #ffb54d;

  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-strong: rgba(255, 255, 255, 0.16);
  --color-divider: rgba(255, 255, 255, 0.08);

  --gradient-hero: linear-gradient(180deg, #1c1c1e 0%, #000000 100%);
  --gradient-card: linear-gradient(145deg, #2c2c2e 0%, #1c1c1e 100%);
  --gradient-blob-1: radial-gradient(circle at 30% 20%, rgba(111, 147, 255, 0.16) 0%, transparent 50%);
  --gradient-blob-2: radial-gradient(circle at 70% 80%, rgba(255, 181, 77, 0.12) 0%, transparent 50%);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3), 0 0 1px rgba(255, 255, 255, 0.05);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.4), 0 0 1px rgba(255, 255, 255, 0.08);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background blobs */
body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

body::before {
  background: var(--gradient-blob-1);
}

body::after {
  background: var(--gradient-blob-2);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-hover);
}

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

ul, ol {
  list-style: none;
}

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

button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* Selection */
::selection {
  background-color: var(--color-primary);
  color: white;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-base);
}

p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

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

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

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

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

.text-tertiary {
  color: var(--color-text-tertiary);
}

/* ========================================
   Layout
   ======================================== */

.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  max-width: var(--max-width-text);
}

.section {
  padding: var(--space-20) 0;
}

.section-lg {
  padding: var(--space-24) 0;
}

@media (max-width: 768px) {
  .section {
    padding: var(--space-12) 0;
  }

  .section-lg {
    padding: var(--space-16) 0;
  }
}

/* ========================================
   Navigation
   ======================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-sticky);
}

[data-theme="dark"] .nav {
  background: rgba(29, 29, 31, 0.72);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width-content);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-lg);
  color: var(--color-text);
}

.nav-logo:hover {
  color: var(--color-text);
}

.nav-logo svg,
.nav-logo img {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-bg-secondary);
}

.nav-link.active {
  color: var(--color-text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-bg-secondary);
}

.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-full);
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    padding: var(--space-4);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    text-align: center;
  }

  .mobile-menu-toggle {
    display: flex;
  }
}

/* ========================================
   Buttons
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: white;
  transform: translateY(-1px);
}

.btn-primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
}

[data-theme="dark"] .btn-secondary {
  background: var(--color-surface);
}

[data-theme="dark"] .btn-secondary:hover {
  background: var(--color-surface-elevated);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
}

.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
}

/* App Store Button */
.btn-appstore {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-text);
  color: var(--color-bg);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-appstore:hover {
  opacity: 0.9;
  color: var(--color-bg);
  transform: translateY(-1px);
}

.btn-appstore svg {
  width: 24px;
  height: 24px;
}

.btn-appstore-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.btn-appstore-text span:first-child {
  font-size: var(--font-size-xs);
  opacity: 0.8;
}

.btn-appstore-text span:last-child {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + var(--space-12));
  padding-bottom: var(--space-12);
  background: var(--gradient-hero);
}

.hero-content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-full);
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero-title-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  max-width: 540px;
  margin: 0 auto var(--space-10);
  line-height: var(--line-height-relaxed);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.hero-app-icon {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-8);
  border-radius: var(--radius-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-app-icon img,
.hero-app-icon svg {
  width: 60px;
  height: 60px;
  color: white;
}

/* ========================================
   Features Section
   ======================================== */

.features {
  background: var(--color-bg);
}

.features-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-16);
}

.features-header h2 {
  margin-bottom: var(--space-4);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 968px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  padding: var(--space-8);
  background: var(--gradient-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
}

[data-theme="dark"] .feature-icon {
  background: var(--color-surface-elevated);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

.feature-card p {
  font-size: var(--font-size-sm);
}

/* Premium Features */
.premium-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  margin-bottom: var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent-secondary);
  background: rgba(233, 162, 59, 0.12);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

[data-theme="dark"] .premium-badge {
  background: rgba(255, 181, 77, 0.2);
}

/* ========================================
   Screenshots Section
   ======================================== */

.screenshots {
  background: var(--color-bg-secondary);
  overflow: hidden;
}

.screenshots-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.screenshots-gallery {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-4) 0;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.screenshots-gallery::-webkit-scrollbar {
  display: none;
}

.screenshot-item {
  flex: 0 0 auto;
  scroll-snap-align: center;
}

.screenshot-item:first-child {
  margin-left: calc((100vw - var(--max-width-content)) / 2 + var(--space-6));
}

.screenshot-item:last-child {
  margin-right: calc((100vw - var(--max-width-content)) / 2 + var(--space-6));
}

@media (max-width: 980px) {
  .screenshot-item:first-child {
    margin-left: var(--space-6);
  }

  .screenshot-item:last-child {
    margin-right: var(--space-6);
  }
}

.screenshot-frame {
  width: 260px;
  height: 520px;
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
}

/* ========================================
   Built for iOS Section
   ======================================== */

.ios-features {
  background: var(--color-bg);
}

.ios-features-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.ios-features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

@media (max-width: 968px) {
  .ios-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .ios-features-grid {
    grid-template-columns: 1fr;
  }
}

.ios-feature {
  text-align: center;
  padding: var(--space-6);
}

.ios-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
}

[data-theme="dark"] .ios-feature-icon {
  background: var(--color-surface);
}

.ios-feature-icon svg {
  width: 28px;
  height: 28px;
}

.ios-feature h4 {
  margin-bottom: var(--space-2);
}

.ios-feature p {
  font-size: var(--font-size-sm);
}

/* ========================================
   Testimonials Section
   ======================================== */

.testimonials {
  background: var(--color-bg-secondary);
}

.testimonials-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 968px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

.testimonial-card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.testimonial-stars {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
  color: var(--color-warning);
}

.testimonial-stars svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.testimonial-text {
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-relaxed);
}

.testimonial-author {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* ========================================
   FAQ Section
   ======================================== */

.faq {
  background: var(--color-bg);
}

.faq-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.faq-list {
  max-width: 680px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) 0;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
}

.faq-question::after {
  content: '+';
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-tertiary);
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-question::after {
  content: '-';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-item.open .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding-bottom: var(--space-5);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   CTA Section
   ======================================== */

.cta {
  background: var(--color-bg-secondary);
  text-align: center;
}

.cta-content {
  max-width: 600px;
  margin: 0 auto;
}

.cta h2 {
  margin-bottom: var(--space-4);
}

.cta p {
  margin-bottom: var(--space-8);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* ========================================
   Footer
   ======================================== */

.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-lg);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.footer-logo svg,
.footer-logo img {
  width: 32px;
  height: 32px;
}

.footer-brand p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.footer-column h5 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

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

.footer-link {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.footer-link:hover {
  color: var(--color-text);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.footer-legal {
  display: flex;
  gap: var(--space-6);
}

.footer-legal a {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.footer-legal a:hover {
  color: var(--color-text-secondary);
}

/* ========================================
   Page Header (for inner pages)
   ======================================== */

.page-header {
  padding-top: calc(var(--nav-height) + var(--space-16));
  padding-bottom: var(--space-12);
  background: var(--gradient-hero);
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--space-4);
}

.page-header p {
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

.page-header-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

/* ========================================
   Content Styles (for policy pages)
   ======================================== */

.content {
  padding: var(--space-16) 0;
}

.content-body {
  max-width: var(--max-width-text);
  margin: 0 auto;
}

.content-body h2 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}

.content-body h2:first-child {
  margin-top: 0;
}

.content-body h3 {
  font-size: var(--font-size-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.content-body p {
  margin-bottom: var(--space-4);
}

.content-body ul,
.content-body ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.content-body ul {
  list-style: disc;
}

.content-body ol {
  list-style: decimal;
}

.content-body li {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

.content-body a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.content-body strong {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.content-body code {
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-sm);
}

/* Summary Box */
.summary-box {
  padding: var(--space-6);
  margin-bottom: var(--space-8);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

[data-theme="dark"] .summary-box {
  background: var(--color-surface);
}

.summary-box h3 {
  font-size: var(--font-size-lg);
  margin-top: 0;
  margin-bottom: var(--space-3);
}

.summary-box ul {
  margin-bottom: 0;
}

.summary-box li {
  margin-bottom: var(--space-2);
}

.summary-box li:last-child {
  margin-bottom: 0;
}

/* Info Box */
.info-box {
  padding: var(--space-4);
  margin: var(--space-6) 0;
  background: rgba(0, 113, 227, 0.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 113, 227, 0.2);
}

[data-theme="dark"] .info-box {
  background: rgba(10, 132, 255, 0.1);
  border-color: rgba(10, 132, 255, 0.2);
}

.info-box p {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

/* Warning Box */
.warning-box {
  padding: var(--space-4);
  margin: var(--space-6) 0;
  background: rgba(255, 149, 0, 0.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 149, 0, 0.2);
}

.warning-box p {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

/* Steps List */
.steps-list {
  counter-reset: step;
  list-style: none;
  padding-left: 0;
}

.steps-list li {
  position: relative;
  padding-left: var(--space-10);
  margin-bottom: var(--space-4);
}

.steps-list li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background: rgba(0, 113, 227, 0.1);
  border-radius: var(--radius-full);
}

[data-theme="dark"] .steps-list li::before {
  background: rgba(10, 132, 255, 0.15);
}

/* ========================================
   Cards Grid (for support, press kit)
   ======================================== */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 640px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-card);
}

.card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
}

[data-theme="dark"] .card-icon {
  background: var(--color-surface-elevated);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-2);
}

.card p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.card .btn {
  margin-top: auto;
}

/* ========================================
   Status Page
   ======================================== */

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-8);
}

.status-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.status-dot.warning {
  background: var(--color-warning);
}

.status-dot.error {
  background: var(--color-error);
}

.status-text {
  font-weight: var(--font-weight-medium);
}

.status-list {
  margin-bottom: var(--space-8);
}

.status-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

.status-item:first-child {
  border-top: 1px solid var(--color-border);
}

.status-item-name {
  font-weight: var(--font-weight-medium);
}

.status-item-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-accent);
}

.status-item-status.warning {
  color: var(--color-warning);
}

.status-item-status.error {
  color: var(--color-error);
}

/* ========================================
   Changelog
   ======================================== */

.changelog-list {
  max-width: var(--max-width-text);
  margin: 0 auto;
}

.changelog-entry {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}

.changelog-entry:first-child {
  padding-top: 0;
}

.changelog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.changelog-version {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

.changelog-date {
  font-size: var(--font-size-sm);
  color: var(--color-text-tertiary);
}

.changelog-tag {
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
}

.changelog-tag.new {
  background: rgba(52, 199, 89, 0.1);
  color: var(--color-accent);
}

.changelog-tag.improved {
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-primary);
}

.changelog-tag.fixed {
  background: rgba(255, 149, 0, 0.1);
  color: var(--color-warning);
}

.changelog-body ul {
  list-style: disc;
  padding-left: var(--space-6);
}

.changelog-body li {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}

/* ========================================
   Press Kit
   ======================================== */

.brand-colors {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.color-swatch {
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: var(--space-3);
  font-size: var(--font-size-xs);
  font-family: var(--font-mono);
  color: white;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.icon-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
}

.icon-item img,
.icon-item svg {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
}

.icon-item span {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* ========================================
   Cookie Notice
   ======================================== */

.cookie-notice {
  position: fixed;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  max-width: 480px;
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-toast);
}

.cookie-notice-content p {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-sm);
}

.cookie-notice-actions {
  display: flex;
  gap: var(--space-2);
}

/* ========================================
   Utilities
   ======================================== */

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: white;
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

/* Print styles */
@media print {
  .nav,
  .footer,
  .cookie-notice,
  .theme-toggle {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .page-header {
    padding-top: var(--space-8);
  }
}