/* ===== Visual Art — Long-form Portfolio ===== */
/* Palette: Warm Amber (#d4a574) + Deep Charcoal (#0a0a0a) + Cool Cyan (#7bb3d9) */

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

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --bg-card: #141414;
  --bg-hover: #1a1a1a;
  --text: #f5f5f5;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --amber: #d4a574;
  --cyan: #7bb3d9;
  --amber-glow: rgba(212, 165, 116, 0.15);
  --cyan-glow: rgba(123, 179, 217, 0.12);
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --font: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  cursor: none;
}

/* ===== Custom Cursor ===== */
.custom-cursor {
  position: fixed;
  pointer-events: none;
  z-index: 10000;
  top: 0; left: 0;
}
.cursor-dot {
  position: absolute;
  width: 6px; height: 6px;
  background: var(--amber);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease;
}
.cursor-ring {
  position: absolute;
  width: 32px; height: 32px;
  border: 1px solid var(--amber);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.15s ease;
  opacity: 0.5;
}
.cursor-glow {
  position: absolute;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(212,165,116,0.06) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: all 0.3s ease;
}
body:hover .cursor-ring { opacity: 1; }
body:hover .cursor-glow { opacity: 1; }

/* Hide cursor on touch devices */
@media (pointer: coarse) {
  body { cursor: auto; }
  .custom-cursor { display: none; }
}

/* ===== Loading Screen ===== */
.loading-screen {
  position: fixed; inset: 0;
  z-index: 99999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
.loading-screen.hidden { opacity: 0; visibility: hidden; }
.loading-content { text-align: center; }
.loading-logo {
  font-size: 4rem; color: var(--amber);
  animation: pulse 2s ease-in-out infinite;
}
.loading-text {
  margin-top: 1.5rem;
  font-size: 1rem; color: var(--text-secondary);
  letter-spacing: 0.1em;
}
.typing-cursor { color: var(--amber); animation: blink 1s step-end infinite; }
.loading-bar {
  width: 200px; height: 2px;
  background: var(--border);
  border-radius: 2px;
  margin: 1.5rem auto 0;
  overflow: hidden;
}
.loading-progress {
  width: 0%; height: 100%;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  border-radius: 2px;
  transition: width 0.3s ease;
}

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ===== Scroll Progress ===== */
.scroll-progress {
  position: fixed; top: 0; left: 0;
  width: 0%; height: 2px;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  z-index: 10001;
  transition: width 0.1s linear;
}

/* ===== Navigation ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 3rem;
  background: rgba(10,10,10,0.6);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid transparent;
  transition: all 0.4s var(--ease-out);
}
.nav.scrolled {
  background: rgba(10,10,10,0.92);
  border-bottom-color: var(--border);
}
.nav-brand { display: flex; align-items: center; gap: 0.6rem; font-weight: 600; font-size: 1rem; }
.nav-logo { font-size: 1.4rem; color: var(--amber); transition: transform 0.6s var(--ease-bounce); }
.nav-brand:hover .nav-logo { transform: rotate(180deg) scale(1.15); }
.nav-menu { display: flex; gap: 2rem; }
.nav-menu a {
  color: var(--text-secondary); text-decoration: none;
  font-size: 0.85rem; font-weight: 500;
  letter-spacing: 0.02em;
  position: relative;
  transition: color 0.3s ease;
  padding: 0.25rem 0;
}
.nav-menu a::after {
  content: ''; position: absolute; bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--amber);
  transition: width 0.4s var(--ease-out);
}
.nav-menu a:hover, .nav-menu a.active { color: var(--text); }
.nav-menu a:hover::after, .nav-menu a.active::after { width: 100%; }
.nav-indicator {
  display: flex; align-items: center; gap: 0.3rem;
  font-family: 'SF Mono', monospace;
  font-size: 0.75rem; color: var(--text-muted);
}
.nav-current { color: var(--amber); font-weight: 600; }

/* ===== Section Base ===== */
.section {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 6rem 0;
  overflow: hidden;
}
.section-content {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 3rem;
  position: relative;
  z-index: 10;
}
.section-number {
  position: absolute;
  bottom: 2rem; right: 3rem;
  font-family: 'SF Mono', monospace;
  font-size: 0.75rem; color: rgba(255,255,255,0.04);
  font-weight: 700; letter-spacing: 0.2em;
  z-index: 5;
}
.section-label {
  display: inline-block;
  font-family: 'SF Mono', monospace;
  font-size: 0.75rem; font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.section-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.section-title .accent { color: var(--amber); }
.section-desc {
  font-size: 1.1rem; color: var(--text-secondary);
  max-width: 550px; line-height: 1.8;
}

/* Section background text */
.section-bg-text {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: clamp(8rem, 20vw, 16rem);
  font-weight: 900;
  color: rgba(255,255,255,0.015);
  white-space: nowrap;
  pointer-events: none;
  z-index: 1;
  letter-spacing: -0.05em;
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex; align-items: center;
}
.hero-bg {
  position: absolute; inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(212,165,116,0.03) 0%, transparent 50%),
              radial-gradient(ellipse at 70% 30%, rgba(123,179,217,0.02) 0%, transparent 40%);
}
.hero-particles {
  position: absolute; inset: 0;
  z-index: 1;
  pointer-events: none;
}
.hero-content {
  position: relative; z-index: 10;
  padding-top: 0;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 0.4rem 1rem;
  background: rgba(212,165,116,0.08);
  border: 1px solid rgba(212,165,116,0.15);
  border-radius: 100px;
  font-size: 0.8rem; font-weight: 500;
  color: var(--amber);
  letter-spacing: 0.05em;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--amber);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.5;transform:scale(0.8)} }

.hero-title { font-size: clamp(2rem, 4.5vw, 3.8rem); margin-bottom: 1.5rem; }
.title-line { display: block; overflow: hidden; }
.title-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(100%);
  transition: all 0.8s var(--ease-out);
}
.title-word.visible { opacity: 1; transform: translateY(0); }
.title-word.accent { color: var(--amber); position: relative; }
.title-word.accent::after {
  content: ''; position: absolute; bottom: 2px; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--amber), transparent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 1s var(--ease-out) 0.3s;
}
.title-word.accent.visible::after { transform: scaleX(1); }

.hero-subtitle {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 480px; line-height: 1.8;
  margin-bottom: 2.5rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 1s var(--ease-out) 0.8s;
}
.hero-subtitle.visible { opacity: 1; transform: translateY(0); }

.hero-cta {
  display: flex; gap: 1rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 1s var(--ease-out) 1s;
}
.hero-cta.visible { opacity: 1; transform: translateY(0); }

.cta-primary, .cta-secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  border-radius: 8px;
  font-weight: 600; font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.4s var(--ease-out);
}
.cta-primary {
  background: var(--amber); color: var(--bg);
  position: relative; overflow: hidden;
}
.cta-primary::before {
  content: ''; position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.6s ease;
}
.cta-primary:hover::before { left: 100%; }
.cta-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(212,165,116,0.25); }

.cta-secondary {
  border: 1px solid var(--border-hover); color: var(--text);
  background: transparent;
}
.cta-secondary:hover { border-color: var(--amber); background: var(--amber-glow); transform: translateY(-2px); }

.hero-scroll-hint {
  position: absolute;
  bottom: -4rem; left: 3rem;
  display: flex; align-items: center; gap: 0.75rem;
  opacity: 0;
  animation: fade-in-up 1s var(--ease-out) 1.5s forwards;
}
.scroll-mouse {
  width: 18px; height: 28px;
  border: 1.5px solid var(--text-muted);
  border-radius: 9px;
  position: relative;
}
.scroll-wheel {
  position: absolute; top: 6px; left: 50%;
  width: 2px; height: 5px;
  background: var(--text-muted);
  border-radius: 1px;
  transform: translateX(-50%);
  animation: scroll-wheel 2s ease-in-out infinite;
}
@keyframes scroll-wheel { 0%,100%{top:6px;opacity:1} 50%{top:14px;opacity:0.3} }
.scroll-text { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.05em; }

.hero-visual {
  position: absolute;
  top: 50%; right: 5%;
  transform: translateY(-50%);
  width: 400px; height: 400px;
  z-index: 5;
  pointer-events: none;
}
#three-hero { width: 100%; height: 100%; }

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Philosophy Section ===== */
.philosophy { background: var(--bg-elevated); }
.philosophy-header { margin-bottom: 4rem; }
.title-reveal {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--ease-out);
}
.title-reveal.visible { opacity: 1; transform: translateY(0); }

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}
.philosophy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.5s var(--ease-out);
  opacity: 0;
  transform: translateY(40px);
}
.philosophy-card.visible { opacity: 1; transform: translateY(0); }
.philosophy-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0; transition: opacity 0.5s ease;
}
.philosophy-card:hover { border-color: var(--border-hover); transform: translateY(-6px); box-shadow: 0 24px 48px rgba(0,0,0,0.3); }
.philosophy-card:hover::before { opacity: 1; }
.card-number {
  position: absolute; top: 1.5rem; right: 1.5rem;
  font-family: 'SF Mono', monospace;
  font-size: 0.7rem; color: rgba(255,255,255,0.06);
  font-weight: 700;
}
.card-icon {
  width: 48px; height: 48px;
  color: var(--amber);
  margin-bottom: 1.5rem;
  transition: transform 0.6s var(--ease-bounce);
}
.philosophy-card:hover .card-icon { transform: scale(1.1) rotate(5deg); }
.philosophy-card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.75rem; }
.philosophy-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

.philosophy-quote {
  text-align: center;
  padding: 3rem 0;
  opacity: 0;
  transform: translateY(30px);
  transition: all 1s var(--ease-out);
}
.philosophy-quote.visible { opacity: 1; transform: translateY(0); }
.philosophy-quote blockquote {
  font-size: 1.5rem; font-weight: 300;
  line-height: 1.6; color: var(--text);
  max-width: 700px; margin: 0 auto 1rem;
  font-style: italic;
}
.philosophy-quote cite {
  font-size: 0.85rem; color: var(--text-muted);
  font-style: normal; letter-spacing: 0.1em;
}

/* ===== Artwork Sections ===== */
.artwork {
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: 4rem 0 6rem;
}
.artwork-canvas {
  position: absolute; inset: 0;
  z-index: 0;
  pointer-events: auto;
}
.artwork-canvas canvas { display: block; width: 100%; height: 100%; }
.artwork-content {
  position: relative; z-index: 10;
  max-width: 500px;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(20px);
  border-radius: 20px;
  padding: 2.5rem;
  border: 1px solid var(--border);
}
.artwork-header { margin-bottom: 2rem; }
.artwork-header .section-title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1rem; }
.artwork-desc {
  font-size: 0.95rem; color: var(--text-secondary);
  line-height: 1.7;
}
.artwork-meta {
  display: flex; flex-wrap: wrap; gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.meta-item { display: flex; flex-direction: column; gap: 0.25rem; }
.meta-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.meta-value { font-size: 0.85rem; color: var(--text); font-weight: 500; }
.artwork-instruction {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: 0.8rem; color: var(--text-muted);
}
.instruction-icon { font-size: 1rem; }

.artwork.dark .artwork-content { background: rgba(0,0,0,0.6); }

/* ===== Playground Section ===== */
.playground { background: var(--bg-elevated); }
.playground-header { margin-bottom: 3rem; }
.playground-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.playground-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s var(--ease-out);
  opacity: 0;
  transform: translateY(40px);
}
.playground-panel.visible { opacity: 1; transform: translateY(0); }
.playground-panel:hover { border-color: var(--border-hover); box-shadow: 0 16px 32px rgba(0,0,0,0.25); }
.playground-panel.wide { grid-column: span 2; }

.panel-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.panel-header h3 { font-size: 1rem; font-weight: 600; }
.panel-tag {
  font-size: 0.7rem; font-weight: 600;
  color: var(--amber);
  background: var(--amber-glow);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  letter-spacing: 0.05em;
}
.panel-canvas {
  width: 100%; height: 240px;
  background: var(--bg);
  position: relative;
}
.panel-canvas canvas { display: block; width: 100%; height: 100%; }
.panel-controls {
  display: flex; flex-wrap: wrap; gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border);
}
.control {
  display: flex; flex-direction: column; gap: 0.4rem;
  flex: 1; min-width: 120px;
}
.control label { font-size: 0.75rem; color: var(--text-muted); }
.control input[type="range"] {
  -webkit-appearance: none;
  width: 100%; height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
}
.control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  background: var(--amber);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.control input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }
.control-btn {
  align-self: flex-end;
  padding: 0.5rem 1rem;
  background: var(--amber-glow);
  border: 1px solid rgba(212,165,116,0.3);
  border-radius: 6px;
  color: var(--amber);
  font-size: 0.8rem; font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}
.control-btn:hover { background: var(--amber); color: var(--bg); }

/* ===== Contact Section ===== */
.contact { background: var(--bg); min-height: auto; padding-bottom: 0; }
.contact-header { margin-bottom: 3rem; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  padding-bottom: 4rem;
}
.contact-info { display: flex; flex-direction: column; gap: 2rem; }
.contact-item { display: flex; flex-direction: column; gap: 0.4rem; }
.contact-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.contact-value {
  font-size: 1.1rem; color: var(--text);
  text-decoration: none;
  transition: color 0.3s ease;
  position: relative;
}
.contact-value::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--amber);
  transition: width 0.4s var(--ease-out);
}
.contact-value:hover { color: var(--amber); }
.contact-value:hover::after { width: 100%; }

.contact-form { opacity: 0; transform: translateY(30px); transition: all 0.8s var(--ease-out); }
.contact-form.visible { opacity: 1; transform: translateY(0); }
.form-group {
  position: relative;
  margin-bottom: 1.5rem;
}
.form-group input, .form-group textarea {
  width: 100%;
  padding: 1rem 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.3s ease;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--amber); }
.form-group label {
  position: absolute;
  top: 1rem; left: 0;
  font-size: 1rem; color: var(--text-muted);
  pointer-events: none;
  transition: all 0.3s ease;
}
.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  top: -0.5rem;
  font-size: 0.75rem;
  color: var(--amber);
}
.form-group input::placeholder, .form-group textarea::placeholder { color: transparent; }
.form-submit {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  background: var(--amber);
  color: var(--bg);
  border: none;
  border-radius: 8px;
  font-weight: 600; font-size: 0.9rem;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.4s var(--ease-out);
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(212,165,116,0.25); }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
}
.footer-content {
  max-width: 1200px; margin: 0 auto; padding: 0 3rem;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem;
}
.footer-brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; }
.footer-logo { color: var(--amber); font-size: 1.3rem; }
.footer-copy { font-size: 0.8rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.8rem; color: var(--text-muted); text-decoration: none; transition: color 0.3s ease; }
.footer-links a:hover { color: var(--amber); }

/* ===== Noise Texture Overlay ===== */
body::after {
  content: ''; position: fixed; inset: 0;
  pointer-events: none; z-index: 9998; opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-hover); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--amber); }
::selection { background: var(--amber); color: var(--bg); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .nav { padding: 1rem 1.5rem; }
  .nav-menu { display: none; }
  .hero-visual { display: none; }
  .section-content { padding: 0 1.5rem; }
  .philosophy-grid, .playground-grid { grid-template-columns: 1fr; }
  .playground-panel.wide { grid-column: span 1; }
  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .artwork-content { max-width: 100%; margin: 0 1.5rem; }
  .footer-content { padding: 0 1.5rem; flex-direction: column; text-align: center; }
}
@media (max-width: 768px) {
  .section { padding: 4rem 0; }
  .section-title { font-size: 2rem; }
  .hero-title { font-size: 1.8rem; }
  .hero-cta { flex-direction: column; }
  .philosophy-quote blockquote { font-size: 1.1rem; }
}