/* ==========================================================================
   AlgoAI - Premium Dark/Gold Luxury Tech Theme
   A sophisticated, refined aesthetic inspired by the brand identity
   ========================================================================== */

/* CSS Custom Properties */
:root {
  /* Gold Palette - Luxurious metallics */
  --gold-50: #faf7f0;
  --gold-100: #f0e6cc;
  --gold-200: #e6d5a8;
  --gold-300: #d4c088;
  --gold-400: #c9a962;
  --gold-500: #b8944d;
  --gold-600: #a67c3d;
  --gold-700: #8a6332;
  --gold-800: #6e4f2a;
  --gold-900: #523b21;

  /* Primary Gold */
  --color-gold: #c9a962;
  --color-gold-light: #dcc78a;
  --color-gold-dark: #a68b4b;
  --color-gold-muted: rgba(201, 169, 98, 0.6);

  /* Background Colors - Deep charcoal spectrum */
  --bg-deepest: #080808;
  --bg-deep: #0d0d0d;
  --bg-primary: #111111;
  --bg-secondary: #161616;
  --bg-tertiary: #1c1c1c;
  --bg-elevated: #222222;
  --bg-card: linear-gradient(145deg, #181818 0%, #141414 100%);

  /* Text Colors - Warm neutrals */
  --text-primary: #e8e0d0;
  --text-secondary: #b8b0a0;
  --text-muted: #787068;
  --text-inverse: #0d0d0d;

  /* Border Colors */
  --border-subtle: rgba(201, 169, 98, 0.08);
  --border-light: rgba(201, 169, 98, 0.15);
  --border-medium: rgba(201, 169, 98, 0.25);
  --border-gold: rgba(201, 169, 98, 0.4);

  /* Gradients */
  --gradient-gold: linear-gradient(135deg, #d4af37 0%, #c9a962 50%, #b8944d 100%);
  --gradient-gold-text: linear-gradient(135deg, #f0e6cc 0%, #c9a962 50%, #a68b4b 100%);
  --gradient-dark: linear-gradient(180deg, #111111 0%, #0d0d0d 100%);
  --gradient-radial: radial-gradient(ellipse at 50% 0%, rgba(201, 169, 98, 0.08) 0%, transparent 60%);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-gold: 0 0 40px rgba(201, 169, 98, 0.15);
  --shadow-glow: 0 0 60px rgba(201, 169, 98, 0.2);

  /* Typography */
  --font-display: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', 'DM Sans', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --space-2xl: 8rem;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-elastic: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

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

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-deep);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.015;
  pointer-events: none;
  z-index: 9999;
}

::selection {
  background: var(--color-gold);
  color: var(--bg-deep);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 300;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 400;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
}

h4 {
  font-size: 1.125rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

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

a:hover {
  color: var(--color-gold-light);
}

/* Gold gradient text */
.text-gold {
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Tagline style - spaced uppercase */
.tagline {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-muted);
}

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

main {
  padding-top: 80px;
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
  color: var(--text-muted);
}

.section-header .tagline {
  margin-bottom: 1rem;
  display: block;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  background: rgba(13, 13, 13, 0.95);
  border-bottom-color: var(--border-light);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Logo */
.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-text {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

.logo-text .logo-accent {
  color: var(--color-gold);
}

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

/* Navigation Menu */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}

.nav-menu li a {
  display: block;
  padding: 0.625rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-menu li a::after {
  content: '';
  position: absolute;
  bottom: 0.375rem;
  left: 1.25rem;
  right: 1.25rem;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  color: var(--color-gold);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Theme Toggle - Hidden by default (dark-only theme) */
.theme-toggle {
  display: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-gold);
  transition: all var(--transition-base);
  transform-origin: center;
}

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

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-deep);
}

/* Radial gradient glow */
.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(201, 169, 98, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

/* Particle ring canvas container */
.hero-particles {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

#particle-ring {
  width: 100%;
  height: 100%;
  max-width: 900px;
  max-height: 900px;
}

.hero-content {
  text-align: center;
  max-width: 700px;
  padding: 2rem;
  position: relative;
  z-index: 2;
  animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-logo {
  font-family: var(--font-body);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .tagline {
  font-size: 1rem;
  letter-spacing: 0.25em;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease-out 0.5s both;
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 2.5rem;
  animation: fadeInUp 1s ease-out 0.7s both;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.9s both;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--bg-deep);
  box-shadow: var(--shadow-gold);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--bg-deep);
}

.btn-primary:hover::before {
  opacity: 1;
}

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

.btn-secondary:hover {
  background: var(--color-gold);
  color: var(--bg-deep);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 0.75rem 1.5rem;
}

.btn-ghost:hover {
  color: var(--color-gold);
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* 2x2 grid for homepage service cards */
.services-home-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

@media (max-width: 768px) {
  .services-home-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-muted), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

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

.card h3 {
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* ==========================================================================
   Service Cards
   ========================================================================== */

.services-grid {
  display: grid;
  gap: 3rem;
}

.service-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 3rem;
  padding: 3rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  position: relative;
}

.service-item::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, var(--color-gold-muted), transparent 50%);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.service-item:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-lg);
}

.service-item:hover::before {
  opacity: 1;
}

.service-item:nth-child(even) {
  direction: rtl;
}

.service-item:nth-child(even) > * {
  direction: ltr;
}

.service-icon-large {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.15) 0%, rgba(201, 169, 98, 0.05) 100%);
  border: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.service-icon-large svg {
  width: 64px;
  height: 64px;
  stroke: var(--color-gold);
  transition: transform var(--transition-base);
}

.service-item:hover .service-icon-large {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
}

.service-item:hover .service-icon-large svg {
  transform: scale(1.1);
}

.service-content h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.service-content p {
  margin-bottom: 1.5rem;
}

.service-content ul {
  list-style: none;
}

.service-content li {
  padding: 0.5rem 0;
  padding-left: 1.75rem;
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.service-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.9rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0.6;
}

/* Home page service cards */
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  border-color: var(--border-light);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.service-card:hover::after {
  transform: scaleX(1);
}

.card-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.12) 0%, rgba(201, 169, 98, 0.04) 100%);
  border: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.card-icon-wrapper svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-gold);
}

.service-card:hover .card-icon-wrapper {
  border-color: var(--border-gold);
  box-shadow: 0 0 30px rgba(201, 169, 98, 0.2);
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-secondary);
  flex-grow: 1;
}

/* ==========================================================================
   Project Cards
   ========================================================================== */

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.project-card:hover {
  border-color: var(--border-light);
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.project-card .project-image {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
  position: relative;
  overflow: hidden;
}

.project-card .project-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.1) 0%, transparent 60%);
}

.project-card .project-image span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-gold);
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}

.project-card .project-image svg {
  width: 56px;
  height: 56px;
  stroke: var(--color-gold);
  position: relative;
  z-index: 1;
}

.project-card-content {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  background: rgba(201, 169, 98, 0.15);
  color: var(--color-gold);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  align-self: flex-start;
  border: 1px solid var(--border-light);
}

.project-status::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.project-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.project-card > p,
.project-card-content > p {
  color: var(--text-secondary);
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.project-tag {
  padding: 0.25rem 0.75rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ==========================================================================
   About Page
   ========================================================================== */

.about-hero {
  padding: 4rem 0 6rem;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}

.about-text h1 {
  margin-bottom: 2rem;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text .lead {
  font-size: 1.25rem;
  margin-bottom: 2rem;
}

.about-text p {
  margin-bottom: 1.5rem;
}

.about-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.about-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.1) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.about-image:hover img {
  transform: scale(1.03);
}

.location-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 2rem;
}

.location-badge svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-gold);
}

/* ==========================================================================
   Contact Page
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h2 {
  margin-bottom: 1.5rem;
  background: var(--gradient-gold-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.contact-method:hover {
  border-color: var(--border-light);
  transform: translateX(8px);
}

.contact-method-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(201, 169, 98, 0.12) 0%, rgba(201, 169, 98, 0.04) 100%);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-method-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-gold);
}

.contact-method h4 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
  color: var(--text-primary);
}

.contact-method p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.9375rem;
}

.contact-method a {
  color: var(--color-gold);
}

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

.site-footer {
  background: var(--bg-deepest);
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-muted), transparent);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 2rem;
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 4rem;
}

.footer-brand .logo-text {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 1.5rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9375rem;
  max-width: 300px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-column h4 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  color: var(--color-gold-muted);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: 0.75rem;
}

.footer-column a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--color-gold);
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

/* ==========================================================================
   CTA Sections
   ========================================================================== */

.cta-section {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201, 169, 98, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  margin-bottom: 1rem;
}

.cta-section p {
  max-width: 500px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

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

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

/* Staggered animation delays */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* Scroll-triggered animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Page-specific: Section backgrounds
   ========================================================================== */

.section-alt {
  background: var(--bg-secondary);
  position: relative;
}

.section-alt::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 10%, var(--border-subtle) 50%, transparent 90%);
}

.section-alt::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 10%, var(--border-subtle) 50%, transparent 90%);
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .about-image {
    order: -1;
  }

  .service-item {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .service-item:nth-child(even) {
    direction: ltr;
  }

  .service-icon-large {
    max-width: 150px;
    margin: 0 auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 13, 13, 0.98);
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    gap: 0.5rem;
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
  }

  .nav-menu.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu li a {
    font-size: 1.25rem;
    padding: 1rem;
    display: block;
    text-align: center;
  }

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

  .section {
    padding: 4rem 0;
  }

  .container {
    padding: 0 1.25rem;
  }

  .nav-container {
    padding: 1rem 1.25rem;
  }

  .hero-content {
    padding: 1rem;
  }

  .hero .tagline {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .services-grid {
    gap: 2rem;
  }

  .service-item {
    padding: 2rem;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .contact-method:hover {
    transform: none;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  .hero-logo {
    font-size: 2.5rem;
    letter-spacing: 0.1em;
  }

  .card {
    padding: 1.75rem;
  }

  .project-card .project-image {
    height: 160px;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

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

  html {
    scroll-behavior: auto;
  }
}