/* ============ Tokens ============ */
:root{
  --bg: #0a0e14;
  --bg-alt: #0d131c;
  --surface: #121a25;
  --surface-2: #16202c;
  --border: #223040;
  --text: #e8edf3;
  --text-dim: #97a5b5;
  --text-faint: #5c6b7d;
  --accent: #00e5c7;
  --accent-2: #4d8dff;
  --accent-soft: rgba(0,229,199,0.12);
  --danger: #ff6b6b;
  --radius: 14px;
  --radius-sm: 8px;
  --maxw: 1140px;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --ease: cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1,h2,h3,h4{ font-family: var(--font-display); font-weight: 600; margin: 0; color: var(--text); }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }

.container{ max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--accent); color:#00201c;
  padding:10px 16px; z-index:999; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }

/* ============ Background FX ============ */
.bg-grid{
  position: fixed; inset:0; z-index:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(0,229,199,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,199,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 40%, transparent 100%);
}
.noise{
  position: fixed; inset:0; z-index:0; pointer-events:none; opacity:.03; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ============ Nav ============ */
.nav{
  position: sticky; top:0; z-index:100;
  background: rgba(10,14,20,0.72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:68px; gap:24px;
}
.brand{ font-family: var(--font-display); font-weight:700; font-size:1.25rem; letter-spacing: .5px; display:flex; align-items:center;}
.brand-mark{ color: var(--text); }
.brand-dot{ color: var(--accent); }
.nav-links{ display:flex; gap: 30px; margin-left: auto; }
.nav-links a{
  font-size: .92rem; color: var(--text-dim); font-weight:500; display:flex; align-items:center; gap:6px;
  transition: color .2s var(--ease);
  position: relative;
}
.nav-links a:hover{ color: var(--text); }
.nav-links a.is-current{ color: var(--accent); }
.nav-links .idx{ font-family: var(--font-mono); font-size:.68rem; color: var(--accent); }
.nav-cv{ margin-left: 8px; white-space: nowrap; }

.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span{ width:22px; height:2px; background: var(--text); display:block; transition: all .25s var(--ease); }

/* ============ Buttons ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 12px 22px; border-radius: 999px; font-weight:600; font-size:.92rem;
  border: 1px solid transparent; cursor:pointer; transition: all .25s var(--ease);
  white-space: nowrap;
}
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #051512; box-shadow: 0 8px 24px -8px rgba(0,229,199,.5);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 12px 28px -8px rgba(0,229,199,.65); }
.btn-outline{ border-color: var(--border); color: var(--text); background: var(--surface); }
.btn-outline:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-ghost{ border-color: var(--border); color: var(--text-dim); padding: 9px 18px; font-size: .85rem; }
.btn-ghost:hover{ color: var(--accent); border-color: var(--accent); }

/* ============ Hero ============ */
.hero{
  position: relative; z-index:1;
  min-height: calc(100vh - 68px);
  display:flex; flex-direction:column; justify-content:center;
  padding-top: 60px; padding-bottom: 60px;
}
.hero-grid{
  display:grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items:center;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-mono); font-size:.8rem; color: var(--accent);
  background: var(--accent-soft); border: 1px solid rgba(0,229,199,.25);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 24px;
}
.dot-live{ width:7px; height:7px; border-radius:50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(0,229,199,.7); animation: pulse 2s infinite; }
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(0,229,199,.55); }
  70%{ box-shadow: 0 0 0 8px rgba(0,229,199,0); }
  100%{ box-shadow: 0 0 0 0 rgba(0,229,199,0); }
}
.hero-title{
  font-size: clamp(2.4rem, 4.6vw, 3.7rem); line-height:1.08; letter-spacing:-.02em; margin-bottom:24px;
}
.text-gradient{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero-sub{ color: var(--text-dim); font-size:1.08rem; max-width: 560px; margin-bottom:36px; }
.hero-actions{ display:flex; gap:16px; margin-bottom:52px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:40px; flex-wrap:wrap; }
.stat{ display:flex; flex-direction:column; gap:4px; }
.stat-num{ font-family: var(--font-display); font-size:1.7rem; font-weight:700; color:var(--text); }
.stat-label{ font-size:.8rem; color:var(--text-faint); text-transform:uppercase; letter-spacing:.05em; }

.hero-visual{ position:relative; display:flex; justify-content:center; align-items:center; }
.photo-frame{
  position:relative; width:min(360px, 80vw); aspect-ratio: 4/5;
  border-radius: 20px; overflow:hidden; border: 1px solid var(--border);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.6);
}
.photo-frame img{ width:100%; height:100%; object-fit:cover; filter: saturate(1.05) contrast(1.03); }
.photo-frame::after{
  content:""; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,229,199,0) 55%, rgba(5,10,15,.75) 100%);
}
.photo-tag{
  position:absolute; z-index:2; font-family: var(--font-mono); font-size:.72rem;
  background: rgba(10,14,20,.75); backdrop-filter: blur(6px); border:1px solid var(--border);
  padding:6px 12px; border-radius:999px; color: var(--accent);
}
.photo-tag--top{ top:16px; left:16px; }
.photo-tag--bottom{ bottom:16px; left:16px; color: var(--text); }
.orbit-ring{
  position:absolute; width: 115%; height:115%; border:1px dashed rgba(0,229,199,.25);
  border-radius: 30px; z-index:-1; animation: spin 40s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

.scroll-cue{
  position:absolute; left:50%; bottom:18px; transform:translateX(-50%);
  width:24px; height:38px; border:2px solid var(--border); border-radius:14px;
  display:flex; justify-content:center; padding-top:6px;
}
.scroll-cue span{ width:4px; height:8px; background: var(--accent); border-radius:2px; animation: scrollDown 1.6s infinite; }
@keyframes scrollDown{
  0%{ transform: translateY(0); opacity:1; }
  100%{ transform: translateY(10px); opacity:0; }
}

/* ============ Sections ============ */
.section{ position:relative; z-index:1; padding: 110px 24px; border-top: 1px solid var(--border); }
.section-kicker{
  font-family: var(--font-mono); color: var(--accent); font-size:.82rem; letter-spacing:.08em;
  text-transform:uppercase; margin-bottom:16px;
}
.section-title{ font-size: clamp(1.8rem, 3.2vw, 2.6rem); letter-spacing:-.01em; margin-bottom:20px; }
.section-sub{ color: var(--text-dim); max-width:640px; margin-bottom:40px; font-size:1.05rem; }

/* About */
.about-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:60px; align-items:start; }
.about-body p{ color: var(--text-dim); margin-bottom:18px; font-size:1.03rem; }
.about-body strong{ color: var(--text); }
.focus-tags{ display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.focus-tags span{
  font-family: var(--font-mono); font-size:.78rem; padding:7px 14px; border-radius:999px;
  border:1px solid var(--border); color: var(--text-dim); background: var(--surface);
}

/* Timeline */
.timeline{ position:relative; margin-bottom:56px; }
.timeline::before{
  content:""; position:absolute; left:7px; top:6px; bottom:6px; width:1px;
  background: linear-gradient(var(--border), transparent);
}
.tl-item{ position:relative; padding-left:36px; margin-bottom:36px; }
.tl-item:last-child{ margin-bottom:0; }
.tl-marker{
  position:absolute; left:0; top:6px; width:15px; height:15px; border-radius:50%;
  background: var(--surface); border:2px solid var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
}
.tl-head{ display:flex; align-items:baseline; justify-content:space-between; gap:16px; flex-wrap:wrap; margin-bottom:6px;}
.tl-head h3{ font-size:1.15rem; }
.tl-date{ font-family: var(--font-mono); font-size:.8rem; color: var(--text-faint); white-space:nowrap; }
.tl-role{ color: var(--accent); font-size:.92rem; margin-bottom:10px; font-weight:500; }
.tl-content ul{ display:flex; flex-direction:column; gap:6px; }
.tl-content li{ color: var(--text-dim); font-size:.94rem; padding-left:16px; position:relative; }
.tl-content li::before{ content:"—"; position:absolute; left:0; color: var(--text-faint); }
.tl-content p{ color: var(--text-dim); font-size:.94rem; }
.timeline--compact .tl-item{ margin-bottom:30px; }

.award-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:18px; }
.award-card{
  background: var(--surface); border:1px solid var(--border); border-radius: var(--radius);
  padding:24px 20px; transition: transform .25s var(--ease), border-color .25s var(--ease);
}
.award-card:hover{ transform: translateY(-4px); border-color: rgba(0,229,199,.35); }
.award-icon{ font-size:1.6rem; display:block; margin-bottom:12px; }
.award-card h4{ font-size:1rem; margin-bottom:8px; }
.award-card p{ color: var(--text-dim); font-size:.86rem; line-height:1.5; }

/* Projects */
.filter-bar{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:36px; }
.filter-chip{
  font-family: var(--font-mono); font-size:.82rem; padding:8px 16px; border-radius:999px;
  background: var(--surface); border:1px solid var(--border); color: var(--text-dim);
  cursor:pointer; transition: all .2s var(--ease);
}
.filter-chip:hover{ border-color: var(--accent); color: var(--text); }
.filter-chip.is-active{ background: var(--accent); color:#051512; border-color: var(--accent); font-weight:600; }

.project-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:20px; }
.project-card{
  background: var(--surface); border:1px solid var(--border); border-radius: var(--radius);
  padding:26px; display:flex; flex-direction:column; gap:14px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.project-card:hover{
  transform: translateY(-6px); border-color: rgba(0,229,199,.4);
  box-shadow: 0 20px 40px -20px rgba(0,229,199,.15);
}
.project-card.is-hidden{ display:none; }
.project-top{ display:flex; justify-content:space-between; align-items:center; gap:10px; flex-wrap:wrap; }
.project-tag{ font-family: var(--font-mono); font-size:.72rem; color: var(--text-faint); }
.project-status{
  font-size:.68rem; text-transform:uppercase; letter-spacing:.04em; font-weight:700;
  padding:4px 10px; border-radius:999px; background: var(--surface-2); color: var(--text-dim);
}
.project-status.status-active{ color: var(--accent); background: var(--accent-soft); }
.project-card h3{ font-size:1.12rem; line-height:1.35; }
.project-card p{ color: var(--text-dim); font-size:.9rem; line-height:1.6; flex-grow:1; }
.project-stack{ display:flex; flex-wrap:wrap; gap:6px; }
.project-stack span{
  font-family: var(--font-mono); font-size:.68rem; padding:4px 9px; border-radius:6px;
  background: var(--surface-2); color: var(--text-dim); border:1px solid var(--border);
}

/* Skills */
.skills-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap:18px; }
.skill-card{ background: var(--surface); border:1px solid var(--border); border-radius: var(--radius); padding:22px; }
.skill-card h4{ font-size:.85rem; text-transform:uppercase; letter-spacing:.06em; color: var(--accent); margin-bottom:14px; }
.chip-row{ display:flex; flex-wrap:wrap; gap:8px; }
.chip-row span{
  font-size:.82rem; padding:6px 12px; border-radius:8px; background: var(--surface-2);
  color: var(--text-dim); border:1px solid var(--border);
}

/* Contact */
.contact-panel{
  background: linear-gradient(160deg, var(--surface), var(--surface-2));
  border:1px solid var(--border); border-radius:24px; padding:56px;
  display:grid; grid-template-columns: 1.1fr .9fr; gap:40px; align-items:center;
  position:relative; overflow:hidden;
}
.contact-panel::before{
  content:""; position:absolute; width:400px; height:400px; border-radius:50%;
  background: radial-gradient(circle, rgba(0,229,199,.15), transparent 70%);
  top:-160px; right:-160px; pointer-events:none;
}
.contact-links{ display:flex; flex-direction:column; gap:12px; }
.contact-link{
  display:flex; justify-content:space-between; align-items:center; gap:12px;
  padding:16px 20px; background: var(--bg-alt); border:1px solid var(--border); border-radius:12px;
  transition: all .2s var(--ease);
}
.contact-link:hover{ border-color: var(--accent); transform: translateX(4px); }
.cl-label{ font-family: var(--font-mono); font-size:.72rem; color: var(--text-faint); text-transform:uppercase; letter-spacing:.05em; }
.cl-value{ font-weight:600; font-size:.94rem; }

/* Footer */
.footer{ border-top:1px solid var(--border); padding:32px 0; position:relative; z-index:1; }
.footer-inner{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; }
.footer p{ color: var(--text-faint); font-size:.85rem; }
.back-top{ color: var(--text-dim); font-size:.85rem; transition: color .2s; }
.back-top:hover{ color: var(--accent); }

/* ============ Reveal animation ============ */
.reveal{ opacity:0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

/* ============ Responsive ============ */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; margin-bottom:20px; }
  .photo-frame{ width:min(300px,70vw); }
  .about-grid{ grid-template-columns:1fr; gap:24px; }
  .award-grid{ grid-template-columns: repeat(2,1fr); }
  .project-grid{ grid-template-columns: repeat(2,1fr); }
  .skills-grid{ grid-template-columns: repeat(2,1fr); }
  .contact-panel{ grid-template-columns:1fr; padding:36px; }
}

@media (max-width: 760px){
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-cv{ display:none; }
  .nav.is-open .nav-links{
    display:flex; flex-direction:column; position:absolute; top:68px; left:0; right:0;
    background: var(--bg); border-bottom:1px solid var(--border); padding:20px 24px; gap:18px;
  }
  .nav.is-open .nav-cv{ display:inline-flex; margin: 6px 24px 20px; }
  .hero-stats{ gap:24px; }
  .award-grid{ grid-template-columns: 1fr; }
  .project-grid{ grid-template-columns: 1fr; }
  .skills-grid{ grid-template-columns: 1fr; }
  .section{ padding:80px 20px; }
}

/* ============ Project links (cards act as links) ============ */
.project-card-link{ display:block; height:100%; }
.project-card{ position:relative; }

/* ============ Project detail page ============ */
.crumb-bar{ padding: 28px 0 0; }
.crumb-bar .container{ display:flex; align-items:center; gap:8px; font-size:.85rem; color: var(--text-faint); }
.crumb-bar a{ color: var(--text-dim); transition: color .2s; }
.crumb-bar a:hover{ color: var(--accent); }

.proj-hero{ padding: 48px 24px 0; position:relative; z-index:1; }
.proj-hero-top{ display:flex; justify-content:space-between; align-items:flex-start; gap:20px; flex-wrap:wrap; margin-bottom:22px; }
.proj-meta-row{ display:flex; gap:10px; flex-wrap:wrap; }
.proj-badge{
  font-family: var(--font-mono); font-size:.72rem; text-transform:uppercase; letter-spacing:.04em;
  padding:6px 14px; border-radius:999px; border:1px solid var(--border); color: var(--text-dim); background: var(--surface);
}
.proj-badge.is-accent{ color: var(--accent); background: var(--accent-soft); border-color: rgba(0,229,199,.3); }
.proj-title{ font-size: clamp(2rem, 4.4vw, 3.2rem); line-height:1.08; letter-spacing:-.02em; max-width: 820px; margin-bottom:18px; }
.proj-lede{ color: var(--text-dim); font-size:1.1rem; max-width:720px; margin-bottom:40px; }

.proj-media{
  width:100%; aspect-ratio: 16/8; border-radius:20px; overflow:hidden; border:1px solid var(--border);
  position:relative; margin-bottom: 8px;
  background:
    radial-gradient(circle at 20% 20%, rgba(0,229,199,.16), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(77,141,255,.14), transparent 55%),
    var(--surface);
}
.proj-media img{ width:100%; height:100%; object-fit:cover; }
.proj-media .media-placeholder{
  position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px;
  color: var(--text-faint);
}
.proj-media .media-placeholder svg{ opacity:.5; }
.proj-media .media-placeholder span{ font-family: var(--font-mono); font-size:.78rem; }
.media-hint{ text-align:center; color: var(--text-faint); font-size:.78rem; font-family: var(--font-mono); margin-bottom:60px; }

.proj-body{ display:grid; grid-template-columns: 1.6fr 1fr; gap:60px; align-items:start; }
.proj-main h2{ font-size:1.4rem; margin: 44px 0 16px; }
.proj-main h2:first-child{ margin-top:0; }
.proj-main p{ color: var(--text-dim); font-size:1.02rem; line-height:1.75; margin-bottom:16px; }
.feature-list{ display:flex; flex-direction:column; gap:14px; }
.feature-list li{
  display:flex; gap:14px; align-items:flex-start; color: var(--text-dim); font-size:.98rem; line-height:1.6;
}
.feature-list .f-num{
  font-family: var(--font-mono); font-size:.78rem; color: var(--accent); background: var(--accent-soft);
  width:26px; height:26px; min-width:26px; border-radius:50%; display:flex; align-items:center; justify-content:center; margin-top:2px;
}

.proj-side{ position:sticky; top:100px; display:flex; flex-direction:column; gap:20px; }
.side-card{ background: var(--surface); border:1px solid var(--border); border-radius: var(--radius); padding:24px; }
.side-card h4{ font-size:.8rem; text-transform:uppercase; letter-spacing:.06em; color: var(--accent); margin-bottom:14px; }
.side-row{ display:flex; justify-content:space-between; gap:10px; padding:10px 0; border-bottom:1px solid var(--border); font-size:.9rem; }
.side-row:last-child{ border-bottom:none; padding-bottom:0; }
.side-row span:first-child{ color: var(--text-faint); }
.side-row span:last-child{ color: var(--text); text-align:right; font-weight:500; }
.side-card .chip-row{ margin-top:0; }
.side-cta{ display:flex; flex-direction:column; gap:10px; }
.side-cta .btn{ width:100%; }
.cv-note{ font-size:.82rem; color: var(--text-faint); margin-bottom:2px; }

.proj-nav{ margin-top: 90px; padding: 40px 0 30px; border-top:1px solid var(--border); display:grid; grid-template-columns: 1fr 1fr; gap:20px; }
.proj-nav-link{
  display:flex; flex-direction:column; gap:8px; padding:22px; border:1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); transition: all .25s var(--ease);
}
.proj-nav-link:hover{ border-color: rgba(0,229,199,.4); transform: translateY(-3px); }
.proj-nav-link.next{ text-align:right; align-items:flex-end; }
.proj-nav-label{ font-family: var(--font-mono); font-size:.72rem; color: var(--text-faint); text-transform:uppercase; letter-spacing:.05em; }
.proj-nav-title{ font-family: var(--font-display); font-weight:600; font-size:1.05rem; }

@media (max-width: 900px){
  .proj-body{ grid-template-columns: 1fr; gap:36px; }
  .proj-side{ position:static; }
  .proj-nav{ grid-template-columns: 1fr; }
  .proj-nav-link.next{ text-align:left; align-items:flex-start; }
}