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

:root {
  --bg: #050505;
  --bg2: #0a0a0a;
  --bg3: #0f0f0f;
  --card: rgba(15,15,15,0.8);
  --accent: #c8ff00;
  --accent-dim: rgba(200,255,0,0.6);
  --accent-glow: rgba(200,255,0,0.15);
  --cyan: #00d4ff;
  --white: #ffffff;
  --white80: rgba(255,255,255,0.8);
  --white60: rgba(255,255,255,0.6);
  --white40: rgba(255,255,255,0.4);
  --white20: rgba(255,255,255,0.2);
  --white10: rgba(255,255,255,0.1);
  --white05: rgba(255,255,255,0.05);
  --white02: rgba(255,255,255,0.02);
  --max-w: 900px;
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  animation: pageLoad 0.6s ease-out;
}

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

::selection { background: rgba(200,255,0,0.25); color: var(--white); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 10px; }

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

.accent-text { color: var(--accent); }
.logo-bracket {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
}

.cursor-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,255,0,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  opacity: 0;
}
.cursor-glow.active { opacity: 1; }

#particleCanvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.3;
}

.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

#navbar {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5,5,5,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--white05);
}

.nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
}

.nav-logo {
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--accent); }

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--white10);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white60);
  transition: all var(--transition);
}
.back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200,255,0,0.05);
}
.back-btn svg { transition: transform 0.3s; }
.back-btn:hover svg { transform: translateX(-3px); }

@media (min-width: 768px) {
  .nav-inner { padding: 1rem 2.5rem; }
}

#project-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
}
.hero-bg-solid {
  position: absolute;
  inset: 0;
  background: var(--bg);
}
.hero-grid-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
}
.hero-glow-1 {
  top: 20%;
  right: 15%;
  width: 400px;
  height: 400px;
  background: rgba(200,255,0,0.06);
}
.hero-glow-2 {
  bottom: 10%;
  left: 10%;
  width: 300px;
  height: 300px;
  background: rgba(0,212,255,0.04);
}
.hero-noise {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

.project-hero-content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 4rem 1.5rem;
  animation: heroFadeIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  opacity: 0;
}

@keyframes heroFadeIn {
  to { opacity: 1; }
}

.project-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.project-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-dim);
  padding: 0.3rem 0.75rem;
  border: 1px solid rgba(200,255,0,0.2);
  border-radius: 4px;
}

.project-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white40);
}

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #00ff88;
  box-shadow: 0 0 8px rgba(0,255,136,0.5);
  animation: pulse 2s infinite;
}

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

.project-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--white) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.project-tagline {
  font-size: 1.15rem;
  color: var(--white40);
  line-height: 1.7;
  max-width: 600px;
  margin-bottom: 2rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.project-tags .tag {
  padding: 0.35rem 1rem;
  border-radius: 9999px;
  background: rgba(200,255,0,0.08);
  border: 1px solid rgba(200,255,0,0.15);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 2rem;
  background: var(--accent);
  color: var(--bg);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 9999px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.25) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: transform 0.6s;
}
.btn-primary:hover::before { transform: translateX(100%); }
.btn-primary:hover { box-shadow: 0 0 40px rgba(200,255,0,0.3); transform: translateY(-2px); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border: 1px solid var(--white20);
  color: var(--white80);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 9999px;
  transition: all var(--transition);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200,255,0,0.05);
}

#project-content {
  position: relative;
  z-index: 10;
  padding: 2rem 0 6rem;
}

.content-wrapper {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.content-block {
  background: var(--card);
  border: 1px solid var(--white05);
  border-radius: var(--radius);
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  transition: border-color 0.5s;
}
.content-block:hover {
  border-color: rgba(200,255,0,0.15);
}

.block-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--white05);
}

.block-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-dim);
  padding: 0.2rem 0.5rem;
  border: 1px solid rgba(200,255,0,0.2);
  border-radius: 4px;
}

.block-title {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.block-body {
  color: var(--white60);
  font-size: 0.95rem;
  line-height: 1.8;
}

.block-body p {
  margin-bottom: 1rem;
}
.block-body p:last-child {
  margin-bottom: 0;
}

.block-body ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.block-body ul li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--white60);
}

.block-body ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.block-body .highlight {
  color: var(--accent);
  font-weight: 600;
}

.block-body code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
  padding: 0.15rem 0.5rem;
  background: rgba(200,255,0,0.08);
  border: 1px solid rgba(200,255,0,0.12);
  border-radius: 4px;
  color: var(--accent);
}

#project-nav {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--white05);
}

.nav-wrapper {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.project-nav-link {
  padding: 2.5rem 1rem;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.project-nav-link:hover {
  background: rgba(200,255,0,0.03);
}

.project-nav-link.prev {
  border-right: 1px solid var(--white05);
}
.project-nav-link.next {
  text-align: right;
  align-items: flex-end;
}

.nav-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white40);
}

.nav-project-name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white80);
  transition: color 0.3s;
}
.project-nav-link:hover .nav-project-name {
  color: var(--accent);
}

#footer {
  border-top: 1px solid var(--white05);
  position: relative;
  z-index: 10;
}

.footer-bar {
  padding: 2rem 1.5rem;
}
.footer-bar-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.footer-brand { display: flex; align-items: center; gap: 0.75rem; }
.footer-logo { font-weight: 900; font-size: 1.1rem; transition: color 0.3s; }
.footer-logo:hover { color: var(--accent); }
.footer-copy { color: var(--white20); font-size: 0.7rem; }
.footer-code {
  color: rgba(255,255,255,0.1);
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
}

@media (min-width: 640px) {
  .footer-bar-inner { flex-direction: row; justify-content: space-between; }
}

@media (min-width: 768px) {
  .content-wrapper { padding: 0 2.5rem; }
  .project-hero-content { padding: 5rem 2.5rem; }
  .nav-wrapper { padding: 0 2.5rem; }
}