/* ==========================================================================
   SEVENTH LAYER — styles.css
   Futuristic dark-themed site with neon accents, glassmorphism, grid overlays
   ========================================================================== */

/* ---------- CSS Variables (Dark Theme Default) ---------- */
:root {
  /* Colors */
  --bg-primary: #04060e;
  --bg-secondary: #0a0f1e;
  --bg-card: rgba(12, 18, 40, 0.6);
  --bg-glass: rgba(15, 22, 50, 0.5);

  --text-primary: #e8eaf0;
  --text-secondary: #8892a8;
  --text-muted: #4a5270;

  --accent-cyan: #00e5ff;
  --accent-purple: #b47afe;
  --accent-blue: #3d7aed;
  --accent-pink: #ff2d8a;

  --glow-cyan: 0 0 20px rgba(0, 229, 255, 0.3);
  --glow-purple: 0 0 20px rgba(180, 122, 254, 0.3);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(0, 229, 255, 0.15);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --section-padding: clamp(80px, 12vh, 160px);
  --container-max: 1200px;
  --container-padding: clamp(20px, 4vw, 60px);

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: 0.2s var(--ease-out-quart);
  --transition-med: 0.5s var(--ease-out-expo);
  --transition-slow: 0.8s var(--ease-out-expo);
}

/* ---------- Light Theme Override ---------- */
[data-theme="light"] {
  --bg-primary: #f0f2f8;
  --bg-secondary: #e4e7f0;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-glass: rgba(255, 255, 255, 0.5);

  --text-primary: #0f1225;
  --text-secondary: #4a5270;
  --text-muted: #8892a8;

  --accent-cyan: #0090a8;
  --accent-purple: #7c3aed;
  --accent-blue: #2563eb;
  --accent-pink: #db2777;

  --glow-cyan: 0 0 20px rgba(0, 144, 168, 0.2);
  --glow-purple: 0 0 20px rgba(124, 58, 237, 0.2);

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-glow: rgba(0, 144, 168, 0.15);
}

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

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

body {
  font-family: var(--font-primary);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
  transition: background 0.5s, color 0.5s;
}

@media (pointer: coarse) {
  body { cursor: auto; }
  .cursor-dot, .cursor-ring { display: none !important; }
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: none; }
img { max-width: 100%; height: auto; }

::selection {
  background: var(--accent-cyan);
  color: var(--bg-primary);
}

/* ---------- Custom Cursor ---------- */
.cursor-dot {
  position: fixed;
  top: 0; left: 0;
  width: 6px; height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transition: transform 0.1s, opacity 0.3s;
  transform: translate(-50%, -50%);
}

.cursor-ring {
  position: fixed;
  top: 0; left: 0;
  width: 36px; height: 36px;
  border: 1.5px solid rgba(0, 229, 255, 0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 10000;
  transition: width 0.3s var(--ease-out-expo),
              height 0.3s var(--ease-out-expo),
              border-color 0.3s,
              opacity 0.3s;
  transform: translate(-50%, -50%);
}

body.cursor-hover .cursor-ring {
  width: 56px; height: 56px;
  border-color: var(--accent-purple);
}

body.cursor-hover .cursor-dot {
  transform: translate(-50%, -50%) scale(2);
  background: var(--accent-purple);
}

/* ---------- Preloader ---------- */
.preloader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s, visibility 0.6s;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

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

.preloader-layers {
  display: flex;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.preloader-layers span {
  opacity: 0.3;
  transition: opacity 0.3s, color 0.3s, text-shadow 0.3s;
}

.preloader-layers span.active {
  opacity: 1;
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan);
}

.preloader-text {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

.nav.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  padding: 12px 0;
}

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

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  display: flex;
  gap: 2px;
}

.logo-bracket { color: var(--accent-cyan); }
.logo-text { color: var(--text-primary); }

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  transition: color var(--transition-fast);
  letter-spacing: 0.02em;
}

.nav-link::before {
  content: attr(data-index);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  position: absolute;
  top: -10px; left: 0;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

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

.nav-link:hover::before {
  opacity: 1;
  transform: translateY(0);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  padding: 4px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 28px; height: 2px;
  background: var(--text-primary);
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5.5px, 5.5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5.5px, -5.5px); }

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  width: 36px; height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: color var(--transition-fast), border-color var(--transition-fast);
  margin-left: 20px;
}

.theme-toggle:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}

.theme-icon { width: 16px; height: 16px; }
.theme-icon.moon { display: none; }
[data-theme="light"] .theme-icon.sun { display: none; }
[data-theme="light"] .theme-icon.moon { display: block; }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s, visibility 0.4s;
}

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

.mobile-menu-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  text-align: center;
}

.mobile-link {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  transition: color var(--transition-fast);
}

.mobile-link::before {
  content: attr(data-index);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-cyan);
  position: absolute;
  top: 0; left: -30px;
  opacity: 0.6;
}

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

/* ---------- Hero Section ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

[data-theme="light"] .hero-grid-overlay {
  background-image:
    linear-gradient(rgba(0, 100, 140, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 100, 140, 0.06) 1px, transparent 1px);
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 900px;
  padding: 0 var(--container-padding);
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.status-dot {
  width: 8px; height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  display: inline-block;
  box-shadow: var(--glow-cyan);
  animation: pulse 2s ease-in-out infinite;
}

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

.hero-title {
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.title-line {
  display: block;
}

.title-accent {
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan);
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 40px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
  cursor: none;
}

.btn-primary {
  background: var(--accent-cyan);
  color: var(--bg-primary);
}

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

.btn-primary .btn-arrow {
  transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

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

.btn-ghost:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-full { width: 100%; justify-content: center; }

/* Scroll indicator */
.hero-scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

.hero-scroll-indicator span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Layer indicators (floating on hero) */
.layer-indicators {
  position: absolute;
  right: clamp(20px, 4vw, 60px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.layer-ind {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-muted);
  width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  transition: all var(--transition-fast);
  opacity: 0.4;
}

.layer-ind.active {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  opacity: 1;
}

/* ---------- Reveal Animations ---------- */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out-expo),
              transform 0.8s var(--ease-out-expo);
  transition-delay: var(--delay, 0s);
}

.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Common Section Styles ---------- */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section-header {
  margin-bottom: clamp(40px, 6vh, 80px);
}

.section-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 12px;
}

/* ---------- About Section ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.about-lead {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 20px;
  font-weight: 400;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

.about-text strong { color: var(--accent-cyan); font-weight: 600; }

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 32px;
  padding: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  backdrop-filter: blur(10px);
}

.stat { text-align: center; }

.stat-number {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--accent-cyan);
  font-variant-numeric: tabular-nums;
}

.stat-suffix {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  color: var(--accent-cyan);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

/* ---------- Services Section ---------- */
.services { background: var(--bg-secondary); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-med),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast);
  backdrop-filter: blur(10px);
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 229, 255, 0.06), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

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

.service-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.service-icon {
  width: 48px; height: 48px;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  transition: transform var(--transition-fast);
}

.service-card:hover .service-icon {
  transform: scale(1.1);
}

.service-icon svg { width: 100%; height: 100%; }

.service-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.service-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.service-tags span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  border: 1px solid var(--border-glow);
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

.service-expand {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.service-number {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

.service-arrow {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.service-card:hover .service-arrow {
  color: var(--accent-cyan);
  transform: translate(4px, -4px);
}

/* ---------- Work / Portfolio Section ---------- */
.work { background: var(--bg-secondary); }

.work-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.work-card {
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: transform var(--transition-med),
              box-shadow var(--transition-fast),
              border-color var(--transition-fast);
  cursor: none;
}

.work-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  border-color: var(--border-glow);
}

.work-card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.work-card-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    hsl(var(--hue, 200), 60%, 15%),
    hsl(calc(var(--hue, 200) + 40), 40%, 8%)
  );
  transition: transform 0.6s var(--ease-out-expo);
}

[data-theme="light"] .work-card-bg {
  background: linear-gradient(
    135deg,
    hsl(var(--hue, 200), 50%, 80%),
    hsl(calc(var(--hue, 200) + 40), 40%, 90%)
  );
}

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

.work-card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 16px;
}

.work-card-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  background: rgba(0, 0, 0, 0.5);
  padding: 6px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

[data-theme="light"] .work-card-tag {
  background: rgba(255, 255, 255, 0.6);
}

.work-card-info {
  padding: 24px 24px 12px;
}

.work-card-info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.work-card-info p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.work-card-meta {
  padding: 12px 24px 20px;
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
}

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s, visibility 0.4s;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
}

.modal-content {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  max-width: 600px;
  width: 90%;
  padding: 48px;
  transform: translateY(30px) scale(0.95);
  transition: transform 0.5s var(--ease-out-expo);
}

.modal.active .modal-content {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 16px; right: 20px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.8rem;
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover { color: var(--text-primary); }

.modal-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 12px;
}

.modal-title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.modal-desc {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.modal-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
}

.modal-detail {
  display: flex;
  justify-content: space-between;
}

.modal-detail-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.modal-detail-value {
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* ---------- Contact Section ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.contact-lead {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-detail-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}

.contact-detail-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.form-group {
  position: relative;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0 8px;
  font-size: 1rem;
  color: var(--text-primary);
  font-family: var(--font-primary);
  outline: none;
  transition: border-color var(--transition-fast);
  cursor: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  cursor: none;
}

.form-group label {
  position: absolute;
  left: 0; top: 16px;
  font-size: 0.9rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: all var(--transition-fast);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group input:valid ~ label,
.form-group select:focus ~ label,
.form-group select:valid ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label,
.form-group textarea:valid ~ label {
  top: -2px;
  font-size: 0.65rem;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.form-line {
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--accent-cyan);
  transition: width 0.4s var(--ease-out-expo);
}

.form-group input:focus ~ .form-line,
.form-group select:focus ~ .form-line,
.form-group textarea:focus ~ .form-line {
  width: 100%;
}

.form-success {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 10px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s, transform 0.4s;
}

.form-success.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Footer ---------- */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

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

/* Easter Egg */
.easter-egg-trigger {
  text-align: center;
  margin-top: 24px;
  font-size: 1.2rem;
  color: var(--text-muted);
  opacity: 0.2;
  cursor: none;
  transition: opacity var(--transition-fast), color var(--transition-fast), transform 0.3s;
}

.easter-egg-trigger:hover {
  opacity: 1;
  color: var(--accent-purple);
  transform: rotate(30deg) scale(1.3);
}

.easter-egg-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  background: rgba(0, 0, 0, 0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s, visibility 0.6s;
}

.easter-egg-overlay.active {
  opacity: 1;
  visibility: visible;
}

.easter-egg-content {
  text-align: center;
  max-width: 500px;
  padding: 40px;
}

.easter-egg-content h3 {
  font-size: 2rem;
  color: var(--accent-purple);
  margin-bottom: 16px;
  text-shadow: var(--glow-purple);
}

.easter-egg-content p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.egg-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  letter-spacing: 0.15em;
  margin-bottom: 24px !important;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .theme-toggle { margin-left: auto; margin-right: 12px; }

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

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

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

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

  .layer-indicators { display: none; }

  .hero-title {
    font-size: clamp(2.8rem, 12vw, 5rem);
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 600px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

  .btn { width: 100%; justify-content: center; }

  .modal-content { padding: 32px 24px; }
  .modal-title { font-size: 1.5rem; }

  .service-card { padding: 24px; }
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}