/* ============================================
   Tolven - Main Stylesheet
   Theme: Light (bone-white, forest-green)
   ============================================ */

/* CSS Variables - Light Mode (Default) */
:root {
  /* Colors */
  --bg: #f5f5f0;
  --surface: #ffffff;
  --accent: #8b7355;
  --accent-soft: #a68b6f;
  --accent-dark: #6b5d47;
  --text: #2a2a2a;
  --muted: #6b6b6b;
  
  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --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;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition: 150ms ease;
  --transition-slow: 300ms ease;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg: #0a0a0a;
  --surface: #111111;
  --accent: #39a86d;
  --accent-soft: #2d8a57;
  --accent-dark: #1a4d2e;
  --text: #e6e6e6;
  --muted: #9b9b9b;
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text);
  background: linear-gradient(45deg, var(--accent-dark), var(--bg));
  background-attachment: fixed;
  min-height: 100vh;
  transition: background var(--transition-slow), color var(--transition-slow);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

[data-theme="dark"] body {
  background: linear-gradient(45deg, #000000, var(--accent-dark));
  background-attachment: fixed;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-md);
  }
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

/* Utility Classes */
.gradient-bg {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent-soft));
}

.gradient-border {
  border: 2px solid transparent;
  background: linear-gradient(var(--surface), var(--surface)) padding-box,
              linear-gradient(135deg, var(--accent-dark), var(--accent-soft)) border-box;
}

.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

[data-theme="dark"] .glass {
  background: rgba(17, 17, 17, 0.85);
}

.card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.grid {
  display: grid;
  gap: var(--space-lg);
}

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

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

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

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

[data-theme="dark"] .header {
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .header-content {
    padding: var(--space-md) 0;
    gap: var(--space-md);
  }
}

.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: var(--font-size-lg);
  transition: opacity var(--transition);
}

@media (min-width: 640px) {
  .logo-link {
    font-size: var(--font-size-xl);
  }
}

@media (min-width: 768px) {
  .logo-link {
    font-size: var(--font-size-2xl);
  }
}

.logo-link:hover {
  opacity: 0.8;
}

.logo {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .logo {
    width: 36px;
    height: 36px;
  }
}

@media (min-width: 768px) {
  .logo {
    width: 40px;
    height: 40px;
  }
}

.logo-text {
  background: linear-gradient(to right, var(--accent-dark), var(--accent), var(--accent-soft));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.nav-toggle:hover {
  transform: scale(1.1);
}

.nav-toggle:active {
  transform: scale(0.95);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.nav-toggle:hover span {
  background: var(--accent);
  transform: scaleX(1.1);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  align-items: center;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-lg);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  position: relative;
}

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 2px;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  border-radius: 2px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: var(--accent);
  color: white;
  position: relative;
  overflow: hidden;
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover {
  background: var(--accent-soft);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: all 0.1s;
}

.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.3);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: white;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  transform: translateY(-3px) scale(1.03);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.97);
}

.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-size-base);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: var(--surface);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.theme-toggle::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(139, 115, 85, 0.1);
  transform: translate(-50%, -50%);
  transition: width 0.4s, height 0.4s;
}

.theme-toggle:hover {
  background: var(--bg);
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.theme-toggle:hover::before {
  width: 100px;
  height: 100px;
}

.theme-toggle:active {
  transform: scale(0.95) rotate(-5deg);
  transition: all 0.1s;
}

.theme-toggle:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.3);
}

.theme-icon svg {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle:hover .theme-icon svg {
  transform: rotate(180deg) scale(1.1);
}

[data-theme="dark"] .theme-toggle {
  border-color: rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main {
  min-height: calc(100vh - 200px);
  padding: var(--space-lg) 0 var(--space-xl) 0;
}

@media (min-width: 640px) {
  .main {
    padding: var(--space-xl) 0 var(--space-xl) 0;
  }
}

@media (min-width: 768px) {
  .main {
    padding: var(--space-2xl) 0 var(--space-xl) 0;
  }
}

.content-area {
  max-width: 900px;
  margin: 0 auto;
  background: transparent;
  position: relative;
  padding: 0 var(--space-sm) var(--space-xl) var(--space-sm);
}

@media (min-width: 640px) {
  .content-area {
    padding: 0 var(--space-md) var(--space-xl) var(--space-md);
  }
}

@media (min-width: 768px) {
  .content-area {
    padding: 0 0 var(--space-xl) 0;
  }
}

/* Content wrapper for consistent styling across all pages
   This is the unified card container used on ALL pages (Home, About, Services, Portfolio, Contact, Privacy)
   - Same max-width (inherited from .content-area: 900px)
   - Same padding: var(--space-2xl)
   - Same border-radius: var(--radius-2xl)
   - Same glass effect background
   - Same box-shadow and border
   - Centered via parent .content-area (margin: 0 auto)
   - No top margin to ensure consistent positioning across all pages
*/
.content-wrapper {
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-radius: var(--radius-2xl);
  padding: var(--space-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(107, 93, 71, 0.1);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100%;
  margin: 0;
}

@media (min-width: 640px) {
  .content-wrapper {
    padding: var(--space-xl);
  }
}

@media (min-width: 768px) {
  .content-wrapper {
    padding: var(--space-2xl);
  }
}

/* Ensure features class doesn't add top margin when applied to content-wrapper */
.content-wrapper.features {
  margin-top: 0;
}

.content-wrapper::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(107, 93, 71, 0.04));
  pointer-events: none;
  z-index: -1;
}

[data-theme="dark"] .content-wrapper {
  background: rgba(17, 17, 17, 0.85);
  border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .content-wrapper::before {
  background: linear-gradient(45deg, transparent, rgba(57, 168, 109, 0.04));
}

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  color: var(--muted);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--bg);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Hero Section */
.hero {
  position: relative;
  padding: var(--space-2xl) 0;
  margin-bottom: var(--space-2xl);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent-soft));
  opacity: 0.1;
  z-index: -1;
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-card {
  background: rgba(250, 248, 245, 0.85);
  border-radius: var(--radius-2xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(107, 93, 71, 0.1);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(45deg, transparent, rgba(107, 93, 71, 0.04));
  pointer-events: none;
  z-index: -1;
}

[data-theme="dark"] .hero-card {
  background: rgba(17, 17, 17, 0.85);
  border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .hero-card::before {
  background: linear-gradient(45deg, transparent, rgba(57, 168, 109, 0.04));
}

.hero h1 {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: var(--font-size-xl);
  color: var(--muted);
  margin-bottom: var(--space-lg);
}

/* Features */
.features {
  display: grid;
  gap: var(--space-lg);
  margin: 0 0 var(--space-2xl) 0;
}

.feature-card {
  padding: var(--space-md);
  border-radius: var(--radius-xl);
  background: rgba(250, 248, 245, 0.75);
  backdrop-filter: blur(15px) saturate(180%);
  -webkit-backdrop-filter: blur(15px) saturate(180%);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(107, 93, 71, 0.08);
  transition: all var(--transition);
}

@media (min-width: 640px) {
  .feature-card {
    padding: var(--space-lg);
  }
}

[data-theme="dark"] .feature-card {
  background: rgba(17, 17, 17, 0.75);
  border-color: rgba(255, 255, 255, 0.08);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  background: rgba(250, 248, 245, 0.9);
}

[data-theme="dark"] .feature-card:hover {
  background: rgba(17, 17, 17, 0.9);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.feature-card p {
  color: var(--muted);
  line-height: 1.7;
}

/* Portfolio Grid */
.portfolio-grid {
  display: grid;
  gap: var(--space-lg);
  margin: var(--space-2xl) 0;
}

.portfolio-card {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-md);
  transition: all var(--transition);
}

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

.portfolio-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent-soft));
  border-radius: var(--radius-lg);
  margin: var(--space-md) 0;
  display: block;
}

.portfolio-content {
  padding: var(--space-lg);
}

.portfolio-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.portfolio-card p {
  color: var(--muted);
  line-height: 1.7;
}

/* Footer */
.footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  background: var(--surface);
}

[data-theme="dark"] .footer {
  border-top-color: rgba(255, 255, 255, 0.05);
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
}

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

.footer-text {
  background: linear-gradient(to right, var(--accent-dark), var(--accent), var(--accent-soft));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: var(--font-size-lg);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-copy {
  color: var(--muted);
  font-size: var(--font-size-xs);
}

/* FAB */
.fab {
  position: fixed;
  bottom: var(--space-md);
  right: var(--space-md);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  text-decoration: none;
  z-index: 999;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.fab::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.5s, height 0.5s;
}

@media (min-width: 640px) {
  .fab {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 56px;
    height: 56px;
  }
}

.fab:hover {
  transform: scale(1.15) translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.fab:hover::before {
  width: 200px;
  height: 200px;
}

.fab:active {
  transform: scale(1.05) translateY(0);
  transition: all 0.1s;
}

.fab svg {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 1;
}

.fab:hover svg {
  transform: scale(1.2) rotate(5deg);
}

@media (min-width: 1024px) {
  .fab {
    display: none;
  }
}

/* Markdown Content Styles */
/* Unified typography for all pages - matches home page formatting */
.content-area h1,
.content-wrapper h1,
.content-wrapper.features h1 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  margin-top: 0;
  color: var(--text);
  line-height: 1.2;
}

.content-area h2,
.content-wrapper h2 {
  font-size: var(--font-size-3xl);
  font-weight: 600;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  color: var(--text);
}

.content-area h3,
.content-wrapper h3 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--text);
}

.content-area p,
.content-wrapper p {
  margin-bottom: var(--space-md);
  color: var(--text);
  line-height: 1.8;
}

.content-area ul,
.content-area ol,
.content-wrapper ul,
.content-wrapper ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.content-area li,
.content-wrapper li {
  margin-bottom: var(--space-xs);
  color: var(--text);
  line-height: 1.8;
}

.content-area a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.content-area a:hover {
  border-bottom-color: var(--accent);
}

.content-area code {
  background: var(--bg);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.875em;
  color: var(--accent);
}

.content-area pre {
  background: var(--bg);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: var(--space-md);
}

.content-area blockquote {
  border-left: 4px solid var(--accent);
  padding-left: var(--space-md);
  margin: var(--space-md) 0;
  color: var(--muted);
  font-style: italic;
}

.content-area img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  margin: var(--space-md) 0;
}

/* Error State */
.error {
  padding: var(--space-xl);
  text-align: center;
  color: var(--muted);
}

.error h2 {
  color: var(--text);
  margin-bottom: var(--space-sm);
}

/* Responsive */
/* Mobile (up to 639px) */
@media (max-width: 639px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 60px;
    left: 50%;
    transform: translateX(-60%) translateY(-20px) scale(0.95);
    background: var(--surface);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 85%;
    width: auto;
    min-width: 200px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: calc(100vh - 80px);
    overflow-y: auto;
    z-index: 999;
  }
  
  .nav-menu.open {
    transform: translateX(-60%) translateY(0) scale(1);
    opacity: 1;
    pointer-events: all;
  }
  
  .header-actions .btn {
    display: none;
  }
  
  .hero h1 {
    font-size: var(--font-size-2xl);
  }
  
  .content-area h1,
  .content-wrapper h1 {
    font-size: var(--font-size-2xl);
  }
  
  .content-area h2,
  .content-wrapper h2 {
    font-size: var(--font-size-xl);
  }
  
  .content-area h3,
  .content-wrapper h3 {
    font-size: var(--font-size-lg);
  }
  
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .logo-text {
    font-size: var(--font-size-base);
  }
  
  .header-content {
    padding: var(--space-sm) 0;
  }
}

/* Tablet (640px to 1023px) */
@media (min-width: 640px) and (max-width: 1023px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 50%;
    transform: translateX(-60%) translateY(-20px) scale(0.95);
    background: var(--surface);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    max-width: 85%;
    width: auto;
    min-width: 250px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: calc(100vh - 90px);
    overflow-y: auto;
    z-index: 999;
  }
  
  .nav-menu.open {
    transform: translateX(-60%) translateY(0) scale(1);
    opacity: 1;
    pointer-events: all;
  }
  
  .header-actions .btn {
    display: none;
  }
  
  .hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  .content-area h1,
  .content-wrapper h1 {
    font-size: var(--font-size-3xl);
  }
  
  .content-area h2,
  .content-wrapper h2 {
    font-size: var(--font-size-2xl);
  }
  
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Mobile and Tablet shared */
@media (max-width: 1023px) {
  .fab {
    display: flex;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Icon Styles */
.icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

.icon-check {
  color: var(--accent);
  width: 16px;
  height: 16px;
}

.icon-star {
  color: #fbbf24;
  width: 16px;
  height: 16px;
}

.theme-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.theme-icon svg {
  width: 20px;
  height: 20px;
  color: var(--text);
  display: block;
}

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

.fade-in {
  animation: fadeIn 0.4s ease-out;
}