/* ==========================================================================
   Sky Blue Eye Studios — Design System & Stylesheet
   Domain: skyblueeye.com
   ========================================================================== */

/* --- 1. CSS Custom Properties & Design Tokens --- */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Cinzel", "Georgia", "Times New Roman", serif;

  /* Default Dark Mode (Celestial Deep Space) */
  --color-scheme: dark;
  --bg-base: #060913;
  --bg-surface: #0d1424;
  --bg-surface-elevated: #141f36;
  --bg-surface-card: rgba(14, 22, 38, 0.7);
  --bg-glass: rgba(13, 20, 36, 0.85);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #090d16;

  --accent-cyan: #00e5ff;
  --accent-cyan-hover: #33ebff;
  --accent-cyan-glow: rgba(0, 229, 255, 0.25);
  --accent-cyan-subtle: rgba(0, 229, 255, 0.12);

  --accent-gold: #f5c542;
  --accent-gold-hover: #ffd56b;
  --accent-gold-glow: rgba(245, 197, 66, 0.25);
  --accent-gold-subtle: rgba(245, 197, 66, 0.12);

  --accent-blue: #38bdf8;
  --accent-purple: #a855f7;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-card: rgba(255, 255, 255, 0.12);
  --border-glow: rgba(0, 229, 255, 0.35);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
  --shadow-glow-cyan: 0 0 35px rgba(0, 229, 255, 0.18);
  --shadow-glow-gold: 0 0 35px rgba(245, 197, 66, 0.18);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  --nav-height: 72px;
  --max-width: 1200px;
}

/* Light Theme Overrides */
[data-theme="light"] {
  --color-scheme: light;
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-card: rgba(255, 255, 255, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.9);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --accent-cyan: #0284c7;
  --accent-cyan-hover: #0369a1;
  --accent-cyan-glow: rgba(2, 132, 199, 0.2);
  --accent-cyan-subtle: rgba(2, 132, 199, 0.1);

  --accent-gold: #d97706;
  --accent-gold-hover: #b45309;
  --accent-gold-glow: rgba(217, 119, 6, 0.2);
  --accent-gold-subtle: rgba(217, 119, 6, 0.1);

  --accent-blue: #2563eb;
  --accent-purple: #9333ea;

  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-card: rgba(15, 23, 42, 0.12);
  --border-glow: rgba(2, 132, 199, 0.3);

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 10px 30px -10px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.15);
  --shadow-glow-cyan: 0 0 30px rgba(2, 132, 199, 0.12);
  --shadow-glow-gold: 0 0 30px rgba(217, 119, 6, 0.12);
}

/* --- 2. CSS Reset & Base Rules --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: var(--color-scheme);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 1.5rem);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* Atmospheric Cosmic Canvas Background */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 15% 20%, rgba(0, 229, 255, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(168, 85, 247, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(245, 197, 66, 0.04) 0%, transparent 40%);
  pointer-events: none;
  z-index: -1;
}

[data-theme="light"] body::before {
  background: 
    radial-gradient(circle at 15% 20%, rgba(2, 132, 199, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(147, 51, 234, 0.04) 0%, transparent 45%);
}

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

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

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Typography Utilities */
.font-serif {
  font-family: var(--font-serif);
}

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

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

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

.text-secondary {
  color: var(--text-secondary);
}

/* --- 3. Header & Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Brand Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.brand-eye {
  width: 28px;
  height: 28px;
  color: var(--accent-cyan);
  filter: drop-shadow(0 0 8px var(--accent-cyan-glow));
  transition: transform var(--transition-base);
}

.brand:hover .brand-eye {
  transform: scale(1.1) rotate(5deg);
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.25rem 0;
  transition: color var(--transition-fast);
}

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

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-cyan);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

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

/* Header Controls */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Theme Switcher Button */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle-btn:hover {
  border-color: var(--accent-cyan);
  transform: scale(1.05);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
}

.icon-sun {
  display: none;
}

.icon-moon {
  display: block;
}

[data-theme="light"] .icon-sun {
  display: block;
}

[data-theme="light"] .icon-moon {
  display: none;
}

/* Mobile Nav Toggle */
.mobile-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 40px;
  height: 40px;
  padding: 9px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.mobile-toggle-btn span {
  width: 100%;
  height: 2px;
  background-color: currentColor;
  transition: transform var(--transition-base), opacity var(--transition-base);
  border-radius: 2px;
}

/* --- 4. Hero Section --- */
.hero-section {
  padding-block: 5rem 6rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  background-color: var(--accent-cyan-subtle);
  border: 1px solid var(--accent-cyan-glow);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.hero-title span {
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subhead {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 580px;
  margin-bottom: 2.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Hero Artwork Frame */
.hero-artwork-frame {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 8px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.3), rgba(245, 197, 66, 0.15), rgba(255, 255, 255, 0.05));
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
  transition: transform var(--transition-slow);
}

.hero-artwork-frame:hover {
  transform: translateY(-4px);
}

.hero-artwork-inner {
  border-radius: calc(var(--radius-lg) - 6px);
  overflow: hidden;
  background-color: var(--bg-surface);
  position: relative;
}

.hero-artwork-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
}

.hero-artwork-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem;
  background: linear-gradient(to top, rgba(6, 9, 19, 0.95), transparent);
  color: #ffffff;
}

.hero-artwork-caption .tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-cyan);
  font-weight: 700;
}

.hero-artwork-caption .name {
  font-size: 1rem;
  font-weight: 600;
}

/* --- 5. Buttons & Badges --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: all var(--transition-fast);
  text-align: center;
}

.btn-primary {
  background-color: var(--accent-cyan);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px var(--accent-cyan-glow);
}

.btn-primary:hover {
  background-color: var(--accent-cyan-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-cyan-glow);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--border-card);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

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

.btn-outline-gold:hover {
  background-color: var(--accent-gold-subtle);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--accent-gold-glow);
}

.btn-outline-cyan {
  background: transparent;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-outline-cyan:hover {
  background-color: var(--accent-cyan-subtle);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--accent-cyan-glow);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.badge-gold {
  background-color: var(--accent-gold-subtle);
  border: 1px solid var(--accent-gold-glow);
  color: var(--accent-gold);
}

.badge-cyan {
  background-color: var(--accent-cyan-subtle);
  border: 1px solid var(--accent-cyan-glow);
  color: var(--accent-cyan);
}

.badge-purple {
  background-color: rgba(168, 85, 247, 0.12);
  border: 1px solid rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

/* --- 6. Section Standard Headers --- */
.section {
  padding-block: 5rem;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  margin-bottom: 3.5rem;
}

.section-eyebrow {
  font-size: 0.825rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(2rem, 3.2vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* --- 7. Featured Projects Section --- */
.projects-container {
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

.project-card {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 3rem;
  align-items: center;
  background-color: var(--bg-surface-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.project-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

.project-card.reversed {
  grid-template-columns: 1.15fr 1fr;
}

.project-card.reversed .project-visual {
  order: 2;
}

.project-card.reversed .project-content {
  order: 1;
}

/* Project Visuals */
.project-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: radial-gradient(circle at center, var(--bg-surface-elevated) 0%, var(--bg-surface) 100%);
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
}

.project-visual img,
.project-visual svg {
  max-height: 380px;
  width: auto;
  filter: drop-shadow(0 12px 24px rgba(0, 0, 0, 0.4));
  transition: transform var(--transition-slow);
}

.project-card:hover .project-visual img,
.project-card:hover .project-visual svg {
  transform: scale(1.03);
}

/* Project Content */
.project-header-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
}

.project-platform {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.project-tagline {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--accent-cyan);
  margin-bottom: 1.25rem;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.project-features {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.project-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.project-feature-icon {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

/* --- 8. The Creative Lab Section --- */
.lab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.lab-card {
  background-color: var(--bg-surface-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.lab-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.lab-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

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

.lab-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background-color: var(--accent-cyan-subtle);
  border: 1px solid var(--accent-cyan-glow);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.lab-icon-box svg {
  width: 26px;
  height: 26px;
}

.lab-card:nth-child(2) .lab-icon-box {
  background-color: var(--accent-gold-subtle);
  border-color: var(--accent-gold-glow);
  color: var(--accent-gold);
}

.lab-card:nth-child(3) .lab-icon-box {
  background-color: rgba(168, 85, 247, 0.12);
  border-color: rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

.lab-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.lab-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.lab-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex-grow: 1;
  margin-bottom: 1.5rem;
}

.lab-status-note {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.lab-status-note::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: currentColor;
}

/* --- 9. About Section --- */
.about-box {
  background-color: var(--bg-surface-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  line-height: 1.3;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pillar-item {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.pillar-item:hover {
  transform: translateX(4px);
  border-color: var(--accent-cyan);
}

.pillar-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pillar-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- 10. Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  align-items: flex-start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-card-direct {
  background-color: var(--bg-surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-card-direct h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.contact-card-direct p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.contact-email-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  padding: 0.75rem 1.25rem;
  background-color: var(--accent-cyan-subtle);
  border-radius: var(--radius-md);
  border: 1px solid var(--accent-cyan-glow);
  word-break: break-all;
}

.contact-email-link:hover {
  background-color: var(--accent-cyan);
  color: var(--text-inverse);
}

/* Form Styles */
.contact-form-container {
  background-color: var(--bg-surface-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px var(--accent-cyan-subtle);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Honeypot field for spam prevention */
.hp-field {
  display: none !important;
  visibility: hidden !important;
}

.form-feedback {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  display: none;
}

.form-feedback.success {
  display: block;
  background-color: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #4ade80;
}

.form-feedback.error {
  display: block;
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

/* --- 11. Modal Dialog (Notify Me on Launch) --- */
dialog.modal {
  margin: auto;
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  max-width: 520px;
  width: calc(100% - 2rem);
  padding: 0;
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
  overflow: hidden;
}

dialog.modal::backdrop {
  background: rgba(4, 6, 13, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 1.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
  font-size: 1.35rem;
  font-weight: 700;
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.modal-body {
  padding: 1.75rem;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  cursor: pointer;
  padding: 0.65rem 0.85rem;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast);
}

.checkbox-label:hover {
  border-color: var(--accent-cyan);
}

.checkbox-label input[type="checkbox"] {
  accent-color: var(--accent-cyan);
  width: 18px;
  height: 18px;
}

/* --- 12. Footer --- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  padding-block: 3.5rem 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand-text {
  font-size: 0.925rem;
  color: var(--text-secondary);
  max-width: 320px;
  margin-top: 0.75rem;
  line-height: 1.6;
}

.footer-col-title {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

.social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.social-btn:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-cyan-subtle);
}

.social-btn svg {
  width: 20px;
  height: 20px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 1rem;
}

/* --- 13. Standalone Privacy Policy Page (privacy.html) --- */
.privacy-page {
  padding-block: 4rem 6rem;
}

.privacy-container {
  max-width: 820px;
  margin-inline: auto;
  background-color: var(--bg-surface-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  box-shadow: var(--shadow-lg);
}

.privacy-header {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
}

.privacy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.privacy-pledge-box {
  background: linear-gradient(135deg, var(--accent-cyan-subtle), var(--accent-gold-subtle));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 2.5rem;
}

.privacy-pledge-box h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.privacy-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.4rem;
}

.privacy-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1rem;
}

.privacy-content ul {
  list-style: disc;
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-secondary);
}

.privacy-content li {
  margin-bottom: 0.6rem;
  line-height: 1.6;
}

.privacy-content strong {
  color: var(--text-primary);
}

.privacy-contact-box {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 2.5rem;
}

/* --- 14. Responsive Breakpoints --- */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-artwork-frame {
    max-width: 520px;
    margin-inline: auto;
  }

  .project-card,
  .project-card.reversed {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .project-card.reversed .project-visual {
    order: 0;
  }

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

  .about-box {
    grid-template-columns: 1fr;
    padding: 2.5rem;
  }

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

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

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

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

  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.75rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .project-card {
    padding: 1.75rem;
  }

  .privacy-container {
    padding: 2rem 1.5rem;
  }
}