/* ============================================
   MINIMA - Minimalist Portfolio Theme
   Pure CSS3 Animations & Effects
   ============================================ */

/* ============================================
   CSS VARIABLES & ROOT SETTINGS
   ============================================ */
:root {
  /* Colors */
  --color-white: #ffffff;
  --color-black: #0a0a0a;
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  
  /* Accent Colors */
  --accent-primary: #6366f1;
  --accent-secondary: #ec4899;
  --accent-tertiary: #8b5cf6;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
  --accent-gradient-hover: linear-gradient(135deg, #4f46e5 0%, #db2777 100%);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 700ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Z-index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal: 400;
  --z-popover: 500;
  --z-tooltip: 600;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --color-white: #0a0a0a;
  --color-black: #fafafa;
  --color-gray-50: #171717;
  --color-gray-100: #262626;
  --color-gray-200: #404040;
  --color-gray-300: #525252;
  --color-gray-400: #737373;
  --color-gray-500: #a3a3a3;
  --color-gray-600: #d4d4d4;
  --color-gray-700: #e5e5e5;
  --color-gray-800: #f5f5f5;
  --color-gray-900: #fafafa;
  --shadow-glow: 0 0 60px rgba(99, 102, 241, 0.4);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-white);
  color: var(--color-gray-900);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

[data-theme="dark"] body {
  background-color: #0a0a0a;
  color: var(--color-gray-100);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul, ol {
  list-style: none;
}

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

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.text-display {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.text-heading-1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 800;
}

.text-heading-2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
}

.text-heading-3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

.text-heading-4 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  font-weight: 600;
}

.text-body-lg {
  font-size: 1.125rem;
  line-height: 1.75;
}

.text-body {
  font-size: 1rem;
  line-height: 1.75;
}

.text-small {
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-muted {
  color: var(--color-gray-500);
}

/* Gradient Text */
.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================
   LAYOUT & CONTAINERS
   ============================================ */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container-sm {
  max-width: 800px;
}

.container-lg {
  max-width: 1600px;
}

.section {
  padding: var(--space-5xl) 0;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-lg {
  padding: calc(var(--space-5xl) * 1.5) 0;
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

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

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

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Flex */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  padding: var(--space-lg) 0;
  transition: all var(--transition-slow);
}

.header.scrolled {
  padding: var(--space-md) 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-gray-200);
}

[data-theme="dark"] .header.scrolled {
  background: rgba(10, 10, 10, 0.8);
  border-bottom-color: var(--color-gray-800);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.25rem;
}

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

.nav-link {
  position: relative;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-gray-600);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-gray-900);
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
  color: var(--color-gray-100);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: calc(100% - var(--space-xl));
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  padding: var(--space-sm);
  margin-top: var(--space-sm);
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
}

[data-theme="dark"] .nav-dropdown-menu {
  background: var(--color-gray-100);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-dropdown-link:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

[data-theme="dark"] .nav-dropdown-link:hover {
  background: var(--color-gray-200);
}

.nav-dropdown-link.active {
  color: var(--accent-primary);
}

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

/* Mobile Menu */
.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
}

.mobile-menu-toggle:hover {
  background: var(--color-gray-100);
}

.hamburger {
  position: relative;
  width: 24px;
  height: 2px;
  background: var(--color-gray-900);
  transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-gray-900);
  transition: all var(--transition-base);
}

.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

.mobile-menu-toggle.active .hamburger {
  background: transparent;
}

.mobile-menu-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.mobile-menu-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  bottom: 0;
}

@media (max-width: 1024px) {
  .nav { display: none; }
  .mobile-menu-toggle { display: flex; }
}

/* Mobile Menu Panel */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--color-white);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  z-index: var(--z-modal);
  overflow-y: auto;
}

[data-theme="dark"] .mobile-menu {
  background: var(--color-gray-50);
}

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

.mobile-menu-content {
  padding: 100px var(--space-xl) var(--space-xl);
}

.mobile-nav-link {
  display: block;
  padding: var(--space-md) 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-gray-900);
  border-bottom: 1px solid var(--color-gray-200);
  transition: color var(--transition-fast);
}

[data-theme="dark"] .mobile-nav-link {
  color: var(--color-gray-100);
  border-bottom-color: var(--color-gray-800);
}

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

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: calc(var(--z-modal) - 1);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gray-900);
  color: white;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .btn-primary {
  background: white;
  color: var(--color-gray-900);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.btn-primary:hover::before {
  transform: translateX(0);
}

.btn-primary span {
  position: relative;
  z-index: 1;
}

.btn-secondary {
  background: transparent;
  color: var(--color-gray-900);
  border: 1px solid var(--color-gray-300);
}

[data-theme="dark"] .btn-secondary {
  color: var(--color-gray-100);
  border-color: var(--color-gray-700);
}

.btn-secondary:hover {
  background: var(--color-gray-100);
  border-color: var(--color-gray-400);
}

.btn-accent {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-glow);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(99, 102, 241, 0.5);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-600);
}

.btn-ghost:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
}

.btn-lg {
  padding: var(--space-lg) var(--space-2xl);
  font-size: 1rem;
}

.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
}

/* Magnetic Button Effect */
.btn-magnetic {
  position: relative;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-slow);
}

[data-theme="dark"] .card {
  background: var(--color-gray-100);
}

.card-hover:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.card-bordered {
  border: 1px solid var(--color-gray-200);
}

[data-theme="dark"] .card-bordered {
  border-color: var(--color-gray-800);
}

.card-body {
  padding: var(--space-xl);
}

.card-image {
  position: relative;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slower);
}

.card:hover .card-image img {
  transform: scale(1.1);
}

/* Gradient Border Card */
.card-gradient-border {
  position: relative;
  background: var(--color-white);
}

.card-gradient-border::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 2px;
  background: var(--accent-gradient);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  border-radius: inherit;
  pointer-events: none;
}

/* ============================================
   HERO SECTIONS
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 100px;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

[data-theme="dark"] .hero-pattern {
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(236, 72, 153, 0.15) 0%, transparent 50%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

[data-theme="dark"] .hero-grid {
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-gray-600);
  margin-bottom: var(--space-xl);
}

[data-theme="dark"] .hero-badge {
  background: var(--color-gray-800);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

.hero-title {
  margin-bottom: var(--space-xl);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-gray-500);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-scroll {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--color-gray-400), transparent);
  animation: scrollLine 2s infinite;
}

/* ============================================
   FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-sm);
}

[data-theme="dark"] .form-label {
  color: var(--color-gray-400);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-textarea {
  background: var(--color-gray-100);
  border-color: var(--color-gray-700);
  color: var(--color-gray-100);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

/* Newsletter Form */
.newsletter-form {
  display: flex;
  gap: var(--space-sm);
  max-width: 500px;
}

.newsletter-form .form-input {
  flex: 1;
  border-radius: var(--radius-full);
}

@media (max-width: 640px) {
  .newsletter-form {
    flex-direction: column;
  }
}

/* ============================================
   SECTIONS
   ============================================ */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-4xl);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-primary);
  margin-bottom: var(--space-md);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-description {
  font-size: 1.125rem;
  color: var(--color-gray-500);
}

/* ============================================
   SERVICE CARDS
   ============================================ */
.service-card {
  padding: var(--space-2xl);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  transition: all var(--transition-slow);
}

[data-theme="dark"] .service-card {
  border-color: var(--color-gray-800);
}

.service-card:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.service-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border-radius: var(--radius-xl);
  color: white;
  font-size: 1.5rem;
  margin-bottom: var(--space-lg);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.service-description {
  color: var(--color-gray-500);
  margin-bottom: var(--space-lg);
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 500;
  color: var(--accent-primary);
  transition: gap var(--transition-fast);
}

.service-link:hover {
  gap: var(--space-md);
}

/* ============================================
   PORTFOLIO GRID
   ============================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

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

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

.portfolio-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-xl);
  cursor: pointer;
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slower);
}

.portfolio-item:hover img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-xl);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-xs);
}

.portfolio-category {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* Masonry Layout */
.portfolio-masonry {
  column-count: 3;
  column-gap: var(--space-lg);
}

.portfolio-masonry .portfolio-item {
  aspect-ratio: auto;
  margin-bottom: var(--space-lg);
  break-inside: avoid;
}

@media (max-width: 1024px) {
  .portfolio-masonry { column-count: 2; }
}

@media (max-width: 640px) {
  .portfolio-masonry { column-count: 1; }
}

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonial-card {
  padding: var(--space-2xl);
  background: var(--color-gray-50);
  border-radius: var(--radius-2xl);
}

[data-theme="dark"] .testimonial-card {
  background: var(--color-gray-100);
}

.testimonial-quote {
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-gray-700);
  margin-bottom: var(--space-xl);
  position: relative;
}

[data-theme="dark"] .testimonial-quote {
  color: var(--color-gray-300);
}

.testimonial-quote::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: -10px;
  font-size: 5rem;
  font-family: var(--font-display);
  color: var(--accent-primary);
  opacity: 0.3;
  line-height: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.testimonial-name {
  font-weight: 600;
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* ============================================
   PRICING
   ============================================ */
.pricing-card {
  padding: var(--space-2xl);
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-2xl);
  text-align: center;
  transition: all var(--transition-slow);
}

[data-theme="dark"] .pricing-card {
  background: var(--color-gray-100);
  border-color: var(--color-gray-800);
}

.pricing-card.featured {
  border-color: var(--accent-primary);
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.pricing-label {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--accent-gradient);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.pricing-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.pricing-price {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.pricing-price span {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-gray-500);
}

.pricing-description {
  color: var(--color-gray-500);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-gray-200);
}

[data-theme="dark"] .pricing-description {
  border-bottom-color: var(--color-gray-800);
}

.pricing-features {
  text-align: left;
  margin-bottom: var(--space-xl);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--color-gray-600);
}

[data-theme="dark"] .pricing-feature {
  color: var(--color-gray-400);
}

.pricing-feature svg {
  width: 20px;
  height: 20px;
  color: var(--accent-primary);
  flex-shrink: 0;
}

/* Pricing Toggle */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.pricing-toggle-label {
  font-size: 0.9rem;
  color: var(--color-gray-500);
}

.pricing-toggle-label.active {
  color: var(--color-gray-900);
}

[data-theme="dark"] .pricing-toggle-label.active {
  color: var(--color-gray-100);
}

.pricing-switch {
  position: relative;
  width: 60px;
  height: 32px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-base);
}

.pricing-switch.active {
  background: var(--accent-gradient);
}

.pricing-switch::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 4px;
  width: 24px;
  height: 24px;
  background: white;
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
}

.pricing-switch.active::after {
  transform: translateX(28px);
}

/* ============================================
   BLOG
   ============================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

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

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

.blog-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-slow);
}

[data-theme="dark"] .blog-card {
  background: var(--color-gray-100);
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.blog-card-image {
  aspect-ratio: 16/10;
  overflow: hidden;
}

.blog-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slower);
}

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

.blog-card-body {
  padding: var(--space-lg);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.8rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-sm);
}

.blog-card-category {
  color: var(--accent-primary);
  font-weight: 500;
}

.blog-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  line-height: 1.4;
}

.blog-card-title a:hover {
  color: var(--accent-primary);
}

.blog-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-gray-500);
  margin-bottom: var(--space-md);
}

.blog-card-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.blog-card-author img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.blog-card-author-name {
  font-size: 0.875rem;
  font-weight: 500;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-200);
}

[data-theme="dark"] .footer {
  background: var(--color-gray-100);
  border-top-color: var(--color-gray-800);
}

.footer-cta {
  padding: var(--space-5xl) 0;
  text-align: center;
  border-bottom: 1px solid var(--color-gray-200);
}

[data-theme="dark"] .footer-cta {
  border-bottom-color: var(--color-gray-800);
}

.footer-main {
  padding: var(--space-4xl) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

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

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

.footer-brand {
  max-width: 300px;
}

.footer-brand p {
  color: var(--color-gray-500);
  margin: var(--space-md) 0 var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-full);
  color: var(--color-gray-500);
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--color-gray-900);
  border-color: var(--color-gray-900);
  color: white;
}

[data-theme="dark"] .footer-social a:hover {
  background: white;
  border-color: white;
  color: var(--color-gray-900);
}

.footer-title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

.footer-links a {
  display: block;
  padding: var(--space-xs) 0;
  color: var(--color-gray-500);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-gray-900);
}

[data-theme="dark"] .footer-links a:hover {
  color: var(--color-gray-100);
}

.footer-bottom {
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

[data-theme="dark"] .footer-bottom {
  border-top-color: var(--color-gray-800);
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */

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

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideLeft {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideRight {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes marqueeReverse {
  0% { transform: translateX(-50% }
  100% { transform: translateX(0); }
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  0%, 50% { border-color: currentColor; }
  51%, 100% { border-color: transparent; }
}

@keyframes drawLine {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Animation Classes */
.animate-float { animation: float 6s ease-in-out infinite; }
.animate-rotate { animation: rotate 20s linear infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-shimmer {
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
}

/* Scroll Animations */
[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate].animated {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade"] {
  transform: none;
}

[data-animate="slide-left"] {
  transform: translateX(60px);
}

[data-animate="slide-left"].animated {
  transform: translateX(0);
}

[data-animate="slide-right"] {
  transform: translateX(-60px);
}

[data-animate="slide-right"].animated {
  transform: translateX(0);
}

[data-animate="scale"] {
  transform: scale(0.9);
}

[data-animate="scale"].animated {
  transform: scale(1);
}

/* Stagger Animation */
[data-animate-stagger] > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1), transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate-stagger].animated > * {
  opacity: 1;
  transform: translateY(0);
}

[data-animate-stagger].animated > *:nth-child(1) { transition-delay: 0ms; }
[data-animate-stagger].animated > *:nth-child(2) { transition-delay: 100ms; }
[data-animate-stagger].animated > *:nth-child(3) { transition-delay: 200ms; }
[data-animate-stagger].animated > *:nth-child(4) { transition-delay: 300ms; }
[data-animate-stagger].animated > *:nth-child(5) { transition-delay: 400ms; }
[data-animate-stagger].animated > *:nth-child(6) { transition-delay: 500ms; }
[data-animate-stagger].animated > *:nth-child(7) { transition-delay: 600ms; }
[data-animate-stagger].animated > *:nth-child(8) { transition-delay: 700ms; }

/* Text Reveal Animation */
.text-reveal {
  overflow: hidden;
}

.text-reveal span {
  display: inline-block;
  transform: translateY(100%);
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.text-reveal.animated span {
  transform: translateY(0);
}

/* Image Reveal */
.image-reveal {
  position: relative;
  overflow: hidden;
}

.image-reveal::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-gradient);
  z-index: 1;
  transform: translateX(0);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.image-reveal.animated::before {
  transform: translateX(101%);
}

.image-reveal img {
  transform: scale(1.2);
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}

.image-reveal.animated img {
  transform: scale(1);
}

/* Typewriter Effect */
.typewriter {
  overflow: hidden;
  border-right: 2px solid var(--accent-primary);
  white-space: nowrap;
  animation: typewriter 3s steps(40) forwards, blink 0.7s step-end infinite;
}

/* Marquee */
.marquee {
  display: flex;
  overflow: hidden;
  white-space: nowrap;
}

.marquee-content {
  display: flex;
  animation: marquee 30s linear infinite;
}

.marquee-reverse .marquee-content {
  animation: marqueeReverse 30s linear infinite;
}

/* Counter Animation */
.counter {
  font-variant-numeric: tabular-nums;
}

/* Hover Effects */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.hover-scale {
  transition: transform var(--transition-base);
}

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

.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

/* Link Hover Effect */
.link-hover {
  position: relative;
  display: inline-block;
}

.link-hover::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.link-hover:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.inline { display: inline; }

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

.mt-auto { margin-top: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0; }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-2xl { padding: var(--space-2xl); }

.py-section { padding-top: var(--space-5xl); padding-bottom: var(--space-5xl); }

.z-1 { z-index: 1; }
.z-10 { z-index: 10; }
.z-100 { z-index: 100; }

/* Background utilities */
.bg-white { background-color: var(--color-white); }
.bg-black { background-color: var(--color-black); }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }
.bg-accent { background: var(--accent-gradient); }

/* Spacers */
.spacer-sm { height: var(--space-xl); }
.spacer-md { height: var(--space-3xl); }
.spacer-lg { height: var(--space-5xl); }

/* Dividers */
.divider {
  height: 1px;
  background: var(--color-gray-200);
  margin: var(--space-3xl) 0;
}

[data-theme="dark"] .divider {
  background: var(--color-gray-800);
}

/* ============================================
   FORM MESSAGES
   ============================================ */
.form-error {
  display: block;
  color: #ef4444;
  font-size: 0.8rem;
  margin-top: var(--space-xs);
}

.form-input.error,
.form-textarea.error {
  border-color: #ef4444;
}

.form-success {
  padding: var(--space-md) var(--space-lg);
  background: #dcfce7;
  color: #166534;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  margin-top: var(--space-md);
}

[data-theme="dark"] .form-success {
  background: rgba(22, 101, 52, 0.3);
  color: #86efac;
}

.form-error-general {
  padding: var(--space-md) var(--space-lg);
  background: #fef2f2;
  color: #dc2626;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  margin-top: var(--space-md);
}

[data-theme="dark"] .form-error-general {
  background: rgba(220, 38, 38, 0.2);
  color: #fca5a5;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 1280px) {
  .container { max-width: 1200px; }
}

@media (max-width: 1024px) {
  html { font-size: 15px; }
  .container { padding: 0 var(--space-lg); }
  .section { padding: var(--space-4xl) 0; }
}

@media (max-width: 768px) {
  html { font-size: 14px; }
  .section { padding: var(--space-3xl) 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 var(--space-md); }
  .hero { min-height: auto; padding: 120px 0 var(--space-4xl); }
  .hero-scroll { display: none; }
}

/* Print Styles */
@media print {
  .header, .footer, .btn { display: none; }
  body { background: white; color: black; }
}