/* =================================
   VERIDIAN ZENITH - MYSTICAL MINIMALISM
   Ancient Wisdom Meets Future Interface
   ================================= */

/* Design Tokens - CSS Custom Properties */
:root {
  /* Color System */
  --primary-50: #FFF9E6;
  --primary-100: #FFEDB8;
  --primary-500: #D4A843;
  --primary-700: #C49426;
  --primary-900: #8B6914;
  
  --neutral-50: #F5F3F0;
  --neutral-100: #E8E5E0;
  --neutral-700: #2A2824;
  --neutral-800: #1A1816;
  --neutral-900: #0F0E0D;
  --neutral-950: #0A0908;
  
  --success: #7CB342;
  --warning: #F9A825;
  --error: #E53935;
  --info: #B8860B;
  
  /* Background Layers */
  --bg-page: var(--neutral-900);
  --bg-surface: var(--neutral-800);
  --bg-elevated: var(--neutral-700);
  --bg-glass: rgba(42, 40, 36, 0.4);
  --bg-modal: rgba(10, 9, 8, 0.95);
  
  /* Typography */
  --font-display: 'Inter', 'SF Pro Display', sans-serif;
  --font-body: 'Inter', 'SF Pro Text', sans-serif;
  --font-mystical: 'Cinzel', 'Trajan Pro', serif;
  
  /* Font Sizes */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-base: 16px;
  --text-lg: 18px;
  --text-xl: 20px;
  --text-2xl: 24px;
  --text-3xl: 32px;
  --text-4xl: 48px;
  --text-5xl: 64px;
  --text-6xl: 80px;
  
  /* Line Heights */
  --line-xs: 16px;
  --line-sm: 20px;
  --line-base: 26px;
  --line-lg: 28px;
  --line-xl: 28px;
  --line-2xl: 32px;
  --line-3xl: 40px;
  --line-4xl: 56px;
  --line-5xl: 72px;
  --line-6xl: 88px;
  
  /* Spacing */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --space-16: 64px;
  --space-24: 96px;
  --space-32: 128px;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 14, 13, 0.1);
  --shadow-card: 0 4px 12px rgba(15, 14, 13, 0.3), 0 0 0 1px rgba(212, 168, 67, 0.1);
  --shadow-card-hover: 0 12px 32px rgba(15, 14, 13, 0.4), 0 0 0 1px rgba(212, 168, 67, 0.2), 0 0 24px rgba(212, 168, 67, 0.15);
  --shadow-modal: 0 24px 64px rgba(15, 14, 13, 0.6), 0 0 0 1px rgba(212, 168, 67, 0.15);
  --shadow-glow-gold: 0 0 24px rgba(212, 168, 67, 0.4), 0 0 48px rgba(212, 168, 67, 0.2);
  
  /* Animation */
  --motion-fast: 200ms;
  --motion-base: 300ms;
  --motion-smooth: 400ms;
  --motion-luxe: 600ms;
  --motion-particle: 8000ms;
  
  --easing-out: ease-out;
  --easing-base: cubic-bezier(0.4, 0, 0.2, 1);
  --easing-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
  --easing-luxe: cubic-bezier(0.22, 1, 0.36, 1);
  --easing-linear: linear;
}

/* Light Theme */
[data-theme="light"] {
  --bg-page: var(--neutral-50);
  --bg-surface: var(--neutral-100);
  --bg-elevated: var(--neutral-100);
  --bg-glass: rgba(232, 229, 224, 0.6);
  --bg-modal: rgba(245, 243, 240, 0.95);
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-base);
  color: var(--neutral-50);
  background-color: var(--bg-page);
  background-image: radial-gradient(circle at 20% 80%, rgba(212, 168, 67, 0.03) 0%, transparent 50%),
                    radial-gradient(circle at 80% 20%, rgba(212, 168, 67, 0.02) 0%, transparent 50%);
  min-height: 100vh;
  overflow-x: hidden;
}

[data-theme="light"] body {
  color: var(--neutral-900);
  background-color: var(--bg-page);
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--line-3xl);
  letter-spacing: -0.02em;
  color: var(--neutral-50);
}

[data-theme="light"] h1,
[data-theme="light"] h2,
[data-theme="light"] h3,
[data-theme="light"] h4,
[data-theme="light"] h5,
[data-theme="light"] h6 {
  color: var(--neutral-900);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-16);
  position: relative;
}

/* Particle Canvas */
.particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(42, 40, 36, 0.3);
  transition: all var(--motion-smooth) var(--easing-base);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 var(--space-6);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--neutral-50);
  transition: color var(--motion-fast) var(--easing-out);
}

[data-theme="light"] .nav-logo {
  color: var(--neutral-900);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-700), var(--primary-500));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-sm);
  color: var(--neutral-900);
}

.logo-text {
  font-weight: 600;
  font-size: var(--text-lg);
}

.nav-menu {
  display: none;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .nav-menu {
    display: flex;
  }
}

.nav-link {
  color: var(--neutral-100);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
  transition: all var(--motion-fast) var(--easing-out);
}

[data-theme="light"] .nav-link {
  color: var(--neutral-700);
}

.nav-link:hover {
  color: var(--primary-500);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-700);
  transition: width var(--motion-fast) var(--easing-out);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.theme-toggle {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius-full);
  background: var(--bg-elevated);
  color: var(--neutral-100);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--motion-smooth) var(--easing-base);
}

.theme-toggle:hover {
  background: rgba(212, 168, 67, 0.2);
  color: var(--primary-500);
  transform: scale(1.02);
}

.theme-icon {
  transition: all var(--motion-smooth) var(--easing-base);
}

[data-theme="light"] .sun-icon {
  opacity: 0;
  transform: rotate(180deg);
}

.moon-icon {
  opacity: 0;
  transform: rotate(-180deg);
}

[data-theme="light"] .moon-icon {
  opacity: 1;
  transform: rotate(0deg);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 44px;
  height: 44px;
  border: none;
  background: none;
  cursor: pointer;
  padding: var(--space-3);
}

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

.nav-toggle span {
  width: 100%;
  height: 2px;
  background: var(--neutral-50);
  transition: all var(--motion-smooth) var(--easing-base);
}

[data-theme="light"] .nav-toggle span {
  background: var(--neutral-900);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: var(--space-32) 0;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  font-family: var(--font-mystical);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--primary-500);
  margin-bottom: var(--space-6);
  opacity: 0.8;
  animation: fadeInUp var(--motion-luxe) var(--easing-smooth);
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 700;
  line-height: var(--line-5xl);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, var(--neutral-50), var(--primary-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp var(--motion-luxe) var(--easing-smooth) 200ms both;
}

.hero-tagline {
  font-size: var(--text-lg);
  color: var(--neutral-100);
  margin-bottom: var(--space-6);
  opacity: 0.8;
  animation: fadeInUp var(--motion-luxe) var(--easing-smooth) 400ms both;
}

.hero-description {
  font-size: var(--text-base);
  color: var(--neutral-100);
  margin-bottom: var(--space-12);
  opacity: 0.6;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp var(--motion-luxe) var(--easing-smooth) 600ms both;
}

.hero-actions {
  display: flex;
  gap: var(--space-6);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-16);
  animation: fadeInUp var(--motion-luxe) var(--easing-smooth) 800ms both;
}

.hero-rune {
  display: flex;
  justify-content: center;
  color: var(--primary-700);
  opacity: 0.6;
  animation: fadeInUp var(--motion-luxe) var(--easing-smooth) 1000ms both;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--motion-smooth) var(--easing-base);
  min-height: 48px;
  white-space: nowrap;
}

.btn-primary {
  background: transparent;
  color: var(--primary-700);
  border-color: var(--primary-700);
}

.btn-primary:hover {
  background: rgba(196, 148, 38, 0.1);
  border-color: var(--primary-700);
  box-shadow: var(--shadow-glow-gold);
  transform: scale(1.02);
}

.btn-secondary {
  background: transparent;
  color: var(--neutral-100);
  border-color: var(--neutral-700);
}

[data-theme="light"] .btn-secondary {
  color: var(--neutral-700);
}

.btn-secondary:hover {
  background: rgba(42, 40, 36, 0.2);
  border-color: var(--neutral-700);
  transform: scale(1.02);
}

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

/* Welcome Section */
.welcome {
  padding: var(--space-24) 0;
  position: relative;
}

.welcome-grid {
  display: grid;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .welcome-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }
}

.welcome-content {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  border: 1px solid rgba(212, 168, 67, 0.1);
}

.welcome-text p {
  margin-bottom: var(--space-6);
  font-size: var(--text-lg);
  line-height: var(--line-lg);
}

.features-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.feature-card {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid rgba(212, 168, 67, 0.1);
  transition: all var(--motion-smooth) var(--easing-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-700), transparent);
  opacity: 0.3;
  transition: opacity var(--motion-smooth) var(--easing-base);
}

.feature-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(212, 168, 67, 0.2);
}

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

.feature-icon {
  color: var(--primary-500);
  margin-bottom: var(--space-4);
}

.feature-card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--neutral-50);
}

[data-theme="light"] .feature-card h3 {
  color: var(--neutral-900);
}

.feature-card p {
  color: var(--neutral-100);
  line-height: var(--line-base);
}

[data-theme="light"] .feature-card p {
  color: var(--neutral-700);
}

/* Projects Section */
.projects {
  padding: var(--space-24) 0;
  background: linear-gradient(180deg, transparent, rgba(212, 168, 67, 0.02) 50%, transparent);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.divider-line {
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-700), transparent);
  opacity: 0.5;
}

.divider-rune {
  font-family: var(--font-mystical);
  font-size: var(--text-2xl);
  color: var(--primary-700);
  opacity: 0.7;
}

.projects-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
  margin-bottom: var(--space-12);
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-2);
  max-width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.filter-btn {
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--neutral-100);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--motion-fast) var(--easing-out);
  white-space: nowrap;
}

[data-theme="light"] .filter-btn {
  color: var(--neutral-700);
}

.filter-btn:hover {
  opacity: 1;
}

.filter-btn.active {
  background: rgba(196, 148, 38, 0.15);
  color: var(--primary-500);
  border-color: var(--primary-700);
}

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

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

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

.project-card {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(212, 168, 67, 0.1);
  transition: all var(--motion-smooth) var(--easing-base);
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(212, 168, 67, 0.2);
}

.project-image {
  position: relative;
  height: 200px;
  overflow: hidden;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--motion-smooth) var(--easing-base);
}

.project-card:hover .project-image img {
  transform: scale(1.05);
}

.project-status {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
  backdrop-filter: blur(8px);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
}

.status-active {
  background: rgba(124, 179, 66, 0.2);
  color: var(--success);
  border: 1px solid rgba(124, 179, 66, 0.3);
}

.status-active .status-dot {
  background: var(--success);
}

.status-archived {
  background: rgba(249, 168, 37, 0.2);
  color: var(--warning);
  border: 1px solid rgba(249, 168, 37, 0.3);
}

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

.status-featured {
  background: rgba(196, 148, 38, 0.2);
  color: var(--primary-700);
  border: 1px solid rgba(196, 148, 38, 0.3);
}

.status-featured .status-dot {
  background: var(--primary-700);
}

.project-content {
  padding: var(--space-6);
}

.project-title {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--neutral-50);
}

[data-theme="light"] .project-title {
  color: var(--neutral-900);
}

.project-description {
  color: var(--neutral-100);
  line-height: var(--line-base);
  margin-bottom: var(--space-4);
}

[data-theme="light"] .project-description {
  color: var(--neutral-700);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  padding: var(--space-1) var(--space-3);
  background: rgba(196, 148, 38, 0.15);
  color: var(--primary-500);
  border: 1px solid rgba(196, 148, 38, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 500;
}

/* About Section */
.about {
  padding: var(--space-24) 0;
}

.about-content {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.about-text {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: var(--space-12);
  margin-bottom: var(--space-16);
  border: 1px solid rgba(212, 168, 67, 0.1);
}

.about-text p {
  font-size: var(--text-lg);
  line-height: var(--line-lg);
  margin-bottom: var(--space-6);
}

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

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

.principle-card {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid rgba(212, 168, 67, 0.1);
  text-align: center;
  transition: all var(--motion-smooth) var(--easing-base);
}

.principle-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
}

.principle-card h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--neutral-50);
}

[data-theme="light"] .principle-card h3 {
  color: var(--neutral-900);
}

.principle-card p {
  color: var(--neutral-100);
  line-height: var(--line-base);
}

[data-theme="light"] .principle-card p {
  color: var(--neutral-700);
}

/* Community Section */
.community {
  padding: var(--space-24) 0;
  background: linear-gradient(180deg, transparent, rgba(212, 168, 67, 0.02) 50%, transparent);
}

.community-grid {
  display: grid;
  gap: var(--space-16);
}

@media (min-width: 1024px) {
  .community-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.community-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.link-card {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid rgba(212, 168, 67, 0.1);
  display: flex;
  gap: var(--space-6);
  transition: all var(--motion-smooth) var(--easing-base);
}

.link-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(212, 168, 67, 0.2);
}

.link-icon {
  flex-shrink: 0;
  color: var(--primary-500);
}

.link-content h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-3);
  color: var(--neutral-50);
}

[data-theme="light"] .link-content h3 {
  color: var(--neutral-900);
}

.link-content p {
  color: var(--neutral-100);
  line-height: var(--line-base);
  margin-bottom: var(--space-4);
}

[data-theme="light"] .link-content p {
  color: var(--neutral-700);
}

/* Contact Form */
.contact-form-container {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 1px solid rgba(212, 168, 67, 0.1);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

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

.form-group label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--neutral-100);
}

[data-theme="light"] .form-group label {
  color: var(--neutral-700);
}

.form-group input,
.form-group textarea {
  padding: var(--space-3) var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--neutral-700);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--neutral-50);
  font-family: var(--font-body);
  transition: all var(--motion-fast) var(--easing-out);
}

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
  color: var(--neutral-900);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-700);
  box-shadow: 0 0 0 3px rgba(212, 168, 67, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--neutral-100);
  opacity: 0.4;
}

[data-theme="light"] .form-group input::placeholder,
[data-theme="light"] .form-group textarea::placeholder {
  color: var(--neutral-700);
}

.error-message {
  font-size: var(--text-sm);
  color: var(--error);
  min-height: 20px;
}

/* Footer */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid rgba(42, 40, 36, 0.3);
  padding: var(--space-12) 0;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  justify-content: center;
}

.footer-nav a {
  color: var(--neutral-100);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--motion-fast) var(--easing-out);
}

[data-theme="light"] .footer-nav a {
  color: var(--neutral-700);
}

.footer-nav a:hover {
  color: var(--primary-500);
}

.footer-text {
  font-size: var(--text-sm);
  color: var(--neutral-100);
  opacity: 0.6;
}

[data-theme="light"] .footer-text {
  color: var(--neutral-700);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile Navigation Menu */
.nav-menu-mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-page);
  backdrop-filter: blur(24px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  transform: translateX(100%);
  transition: transform var(--motion-smooth) var(--easing-smooth);
}

.nav-menu-mobile.active {
  transform: translateX(0);
}

.nav-menu-mobile .nav-link {
  font-size: var(--text-2xl);
  color: var(--neutral-50);
}

[data-theme="light"] .nav-menu-mobile .nav-link {
  color: var(--neutral-900);
}

/* Hidden class for filtering */
.project-card.hidden {
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
}

/* Loading states */
.btn-loading {
  display: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loading {
  display: inline;
}

/* Responsive adjustments */
@media (max-width: 767px) {
  .hero-title {
    font-size: var(--text-4xl);
    line-height: var(--line-4xl);
  }
  
  .section-title {
    font-size: var(--text-2xl);
  }
  
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
  }
}