@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=Space+Mono:wght@400;700&family=Inter:wght@300;400;500&display=swap');

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

:root {
  --c: #00e5c8;
  --c2: #0066ff;
  --c3: #7000ff;
  --bg: #060a09;
  --bg2: #0c1512;
  --bg3: #111e1b;
  --glass: rgba(255,255,255,0.03);
  --glass-border: rgba(255,255,255,0.07);
  --text: #e8f0ee;
  --muted: #5a7a74;
  --mono: 'Space Mono', monospace;
  --head: 'Syne', sans-serif;
  --body: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  cursor: none;
}

/* ── NOISE ── */
.noise {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: .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");
}

/* ── CURSOR ── */
.cursor {
  width: 8px;
  height: 8px;
  background: var(--c);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transition: transform .1s, opacity .2s;
  transform: translate(-50%,-50%);
}
.cursor-follower {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(0,229,200,.4);
  border-radius: 50%;
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transition: transform .12s cubic-bezier(.16,1,.3,1), width .3s, height .3s, border-color .3s;
  transform: translate(-50%,-50%);
}
.cursor.hover { transform: translate(-50%,-50%) scale(2.5); opacity: .7; }
.cursor-follower.hover { width: 60px; height: 60px; border-color: rgba(0,229,200,.25); }

/* ── LOADER ── */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity .6s, visibility .6s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader-inner { text-align: center; }
.loader-bar {
  width: 200px;
  height: 1px;
  background: rgba(0,229,200,.15);
  position: relative;
  margin: 0 auto 14px;
  overflow: hidden;
}
.loader-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--c);
  transform: scaleX(0);
  transform-origin: left;
  animation: loadBar 1.8s cubic-bezier(.4,0,.2,1) forwards;
}
.loader-text {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--c);
  letter-spacing: .15em;
}
@keyframes loadBar { to { transform: scaleX(1); } }

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 0 48px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background .4s, border-color .4s;
}
nav.scrolled {
  background: rgba(6,10,9,.9);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
}
.logo {
  font-family: var(--head);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -.02em;
}
.logo span { color: var(--c); }
.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-link {
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .06em;
  transition: color .2s;
  position: relative;
}
.nav-link span { color: var(--c); font-size: .65rem; margin-right: 6px; }
.nav-link:hover { color: var(--text); }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1px;
  background: var(--c);
  transform: scaleX(0);
  transition: transform .3s;
}
.nav-link:hover::after { transform: scaleX(1); }
.nav-cta {
  border: 1px solid rgba(0,229,200,.3);
  padding: 8px 20px;
  color: var(--c) !important;
  border-radius: 2px;
  transition: all .25s !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--c); color: var(--bg) !important; border-color: var(--c); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: none;
}
.hamburger span {
  display: block;
  width: 24px; height: 1.5px;
  background: var(--text);
  transition: all .3s;
}
.hamburger.open span:first-child { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:last-child { transform: rotate(-45deg) translate(5px, -5px); }

/* MOBILE MENU */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 400;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  transform: translateX(100%);
  transition: transform .5s cubic-bezier(.7,0,.3,1);
}
.mobile-menu.open { transform: translateX(0); }
.mm-link {
  font-family: var(--head);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  transition: color .2s;
}
.mm-link:hover { color: var(--c); }

/* ── HERO ── */
#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 0 clamp(24px, 7vw, 100px);
}
#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: 64px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--c);
  letter-spacing: .08em;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateY(20px);
}
.hero-status.revealed { animation: revealUp .6s .1s cubic-bezier(.4,0,.2,1) forwards; }
.status-dot {
  width: 6px; height: 6px;
  background: var(--c);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 0 0 rgba(0,229,200,.4); }
  50% { box-shadow: 0 0 0 6px rgba(0,229,200,0); }
}
.hero-name {
  font-family: var(--head);
  font-weight: 800;
  font-size: clamp(3.5rem, 7vw, 6.5rem);
  line-height: .92;
  letter-spacing: -.03em;
  margin-bottom: 22px;
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
}
.hero-name.revealed { animation: revealUp .7s .25s cubic-bezier(.4,0,.2,1) forwards; }
.name-line { display: block; }
.accent-line {
  -webkit-text-stroke: 2px var(--c);
  color: transparent;
  position: relative;
}
.hero-role {
  font-family: var(--mono);
  font-size: .82rem;
  color: var(--muted);
  letter-spacing: .06em;
  margin-bottom: 36px;
  opacity: 0;
  transform: translateY(20px);
}
.hero-role.revealed { animation: revealUp .6s .4s cubic-bezier(.4,0,.2,1) forwards; }
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  opacity: 0;
  transform: translateY(20px);
}
.hero-cta.revealed { animation: revealUp .6s .55s cubic-bezier(.4,0,.2,1) forwards; }
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  opacity: 0;
  transform: translateY(20px);
}
.hero-tags.revealed { animation: revealUp .6s .7s cubic-bezier(.4,0,.2,1) forwards; }
.htag {
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--muted);
  border: 1px solid var(--glass-border);
  padding: 5px 12px;
  letter-spacing: .04em;
  border-radius: 2px;
}
.highlight-tag {
  color: var(--c);
  border-color: rgba(0,229,200,.25);
  background: rgba(0,229,200,.05);
}

/* CODE WINDOW */
.hero-right {
  opacity: 0;
  transform: translateY(30px) rotateY(-5deg);
}
.hero-right.revealed { animation: revealWindow .8s .3s cubic-bezier(.4,0,.2,1) forwards; }
@keyframes revealWindow {
  to { opacity: 1; transform: translateY(0) rotateY(0deg); }
}
.code-window {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(0,229,200,.05);
  position: relative;
}
.code-window::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c), var(--c2), var(--c3));
}
.cw-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0,0,0,.2);
}
.cw-dots { display: flex; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }
.cw-title {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  margin-left: auto;
  margin-right: auto;
}
.cw-body { padding: 20px 20px 24px; }
.cw-line {
  font-family: var(--mono);
  font-size: .8rem;
  line-height: 1.9;
  white-space: pre;
}
.ln { color: #2a3a38; margin-right: 16px; user-select: none; font-size: .72rem; }
.kw { color: var(--c); }
.var { color: #7dd3c0; }
.key { color: #93c5fd; }
.str { color: #86efac; }
.num { color: #fda4af; }
.cmt { color: #2e5050; }
.cw-cursor-line .typed-cursor {
  color: var(--c);
  animation: blink .8s infinite;
}

/* HERO SCROLL */
.hero-scroll {
  position: absolute;
  bottom: 120px;
  left: clamp(24px, 7vw, 100px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}
.scroll-track {
  width: 1px;
  height: 60px;
  background: rgba(0,229,200,.15);
  position: relative;
  overflow: hidden;
}
.scroll-thumb {
  position: absolute;
  top: -100%;
  width: 100%; height: 50%;
  background: var(--c);
  animation: scrollDown 2s ease-in-out infinite;
}
.hero-scroll span {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--muted);
  letter-spacing: .15em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
@keyframes scrollDown { 0% { top: -100%; } 100% { top: 200%; } }

/* HERO STATS */
.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  border-top: 1px solid var(--glass-border);
  background: rgba(6,10,9,.6);
  backdrop-filter: blur(12px);
  z-index: 2;
  opacity: 0;
  transform: translateY(20px);
}
.hero-stats.revealed { animation: revealUp .6s 1s cubic-bezier(.4,0,.2,1) forwards; }
.hstat {
  flex: 1;
  text-align: center;
  padding: 24px;
}
.hstat-num {
  font-family: var(--head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--c);
  line-height: 1;
  margin-bottom: 4px;
}
.hstat-label {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .08em;
}
.hstat-div {
  width: 1px;
  height: 40px;
  background: var(--glass-border);
}

/* ── SECTIONS ── */
section:not(#hero) {
  padding: clamp(80px, 10vw, 140px) clamp(24px, 7vw, 100px);
  max-width: 1400px;
  margin: 0 auto;
}
.section-label {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  letter-spacing: .1em;
  margin-bottom: 60px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label span { color: var(--c); }
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

/* ── ABOUT ── */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.about-headline {
  font-family: var(--head);
  font-size: clamp(2.5rem, 4vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -.03em;
  color: var(--text);
  position: sticky;
  top: 100px;
}
.about-headline em {
  font-style: normal;
  -webkit-text-stroke: 1.5px var(--c);
  color: transparent;
}
.about-body p {
  font-size: .95rem;
  color: #7a9e98;
  line-height: 1.9;
  margin-bottom: 20px;
  font-weight: 300;
}
.about-body p strong { color: var(--text); font-weight: 500; }

/* SKILLS BLOCK */
.skills-block {
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.skill-group {}
.sg-label {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--c);
  letter-spacing: .1em;
  margin-bottom: 10px;
}
.sg-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.sg-tags span {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  border: 1px solid var(--glass-border);
  padding: 4px 10px;
  border-radius: 2px;
  transition: all .25s;
}
.sg-tags span:hover { color: var(--c); border-color: rgba(0,229,200,.3); }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 28px;
  background: var(--c);
  color: var(--bg);
  font-family: var(--mono);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  border-radius: 2px;
  transition: all .25s;
  position: relative;
  overflow: hidden;
}
.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: #fff;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s cubic-bezier(.7,0,.3,1);
}
.btn-primary:hover::before { transform: scaleX(1); transform-origin: left; }
.btn-primary span, .btn-primary svg { position: relative; z-index: 1; }
.btn-primary:hover { color: var(--bg); }
.btn-primary.large { padding: 16px 36px; font-size: .85rem; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border: 1px solid var(--glass-border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .06em;
  text-decoration: none;
  border-radius: 2px;
  transition: all .25s;
}
.btn-outline:hover { border-color: var(--c); color: var(--c); }

/* ── PROJECTS ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 70px;
}
.project-card {
  border: 1px solid var(--glass-border);
  background: var(--bg2);
  padding: 32px;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .4s cubic-bezier(.4,0,.2,1), box-shadow .4s;
  display: flex;
  flex-direction: column;
  cursor: none;
  transform-style: preserve-3d;
}
.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mx,50%) var(--my,50%), rgba(0,229,200,.06), transparent 40%);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
.project-card:hover::after { opacity: 1; }
.project-card:hover { border-color: rgba(0,229,200,.3); box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.pc-num {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .1em;
  margin-bottom: 16px;
}
.pc-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--c);
  border: 1px solid rgba(0,229,200,.25);
  padding: 3px 10px;
  border-radius: 2px;
  background: rgba(0,229,200,.05);
  margin-bottom: 12px;
  letter-spacing: .05em;
}
.project-card h3 {
  font-family: var(--head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -.01em;
}
.project-card p {
  font-size: .84rem;
  color: var(--muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 20px;
  font-weight: 300;
}
.pc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.pc-tag {
  font-family: var(--mono);
  font-size: .68rem;
  color: rgba(0,229,200,.6);
  border: 1px solid rgba(0,229,200,.12);
  padding: 3px 8px;
  border-radius: 2px;
}
.pc-link {
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color .2s;
  margin-top: auto;
}
.pc-link:hover { color: var(--c); }

.pc-links-row {
  display: flex;
  gap: 16px;
  margin-top: auto;
  align-items: center;
}
.pc-link--accent {
  color: var(--c) !important;
  font-weight: 600;
}
.pc-link--accent:hover {
  color: #fff !important;
}

/* SIDE BUILDS */
.side-builds-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.sb-label {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--muted);
  letter-spacing: .08em;
  white-space: nowrap;
}
.sb-line { flex: 1; height: 1px; background: var(--glass-border); }
.side-builds-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.side-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 26px;
  transition: all .35s;
  position: relative;
  overflow: hidden;
  cursor: none;
}
.side-card:hover { border-color: rgba(0,229,200,.3); transform: translateY(-3px); }
.side-card--hero {
  border-color: rgba(0,229,200,.2);
  background: linear-gradient(135deg, var(--bg2) 0%, rgba(0,229,200,.03) 100%);
}
.side-card--hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c), var(--c2), var(--c3));
}
.sc-published {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--bg);
  background: var(--c);
  display: inline-block;
  padding: 3px 10px;
  border-radius: 2px;
  letter-spacing: .06em;
  margin-bottom: 14px;
  font-weight: 700;
}
.sc-icon { font-size: 1.5rem; margin-bottom: 12px; }
.side-card h3 {
  font-family: var(--head);
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}
.side-card p {
  font-size: .8rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
  font-weight: 300;
}
.sc-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 16px; }
.sc-tags span {
  font-family: var(--mono);
  font-size: .65rem;
  color: rgba(0,229,200,.6);
  border: 1px solid rgba(0,229,200,.12);
  padding: 2px 8px;
  border-radius: 2px;
}
.sc-links { display: flex; gap: 16px; }
.sc-link {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .04em;
  transition: color .2s;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.sc-link:hover { color: var(--c); border-color: var(--c); }
.sc-link--accent { color: var(--c); border-color: rgba(0,229,200,.25); }
.sc-link--accent:hover { color: #fff; border-color: #fff; }

/* ── RESEARCH ── */
.research-layout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 60px;
  align-items: start;
}
.research-left { text-align: right; }
.research-year {
  font-family: var(--head);
  font-size: 4rem;
  font-weight: 800;
  color: rgba(0,229,200,.1);
  line-height: 1;
  letter-spacing: -.04em;
}
.research-venue {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--muted);
  letter-spacing: .1em;
  margin-top: 8px;
}
.research-card {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--c);
  border-radius: 0 8px 8px 0;
  padding: 44px;
  position: relative;
  overflow: hidden;
  transition: all .35s;
  cursor: none;
}
.research-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(800px circle at var(--mx,50%) var(--my,50%), rgba(0,229,200,.04), transparent 50%);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
.research-card:hover::before { opacity: 1; }
.rc-badge {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--c);
  border: 1px solid rgba(0,229,200,.25);
  padding: 5px 14px;
  display: inline-block;
  border-radius: 2px;
  background: rgba(0,229,200,.05);
  letter-spacing: .08em;
  margin-bottom: 22px;
}
.rc-title {
  font-family: var(--head);
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -.02em;
  margin-bottom: 18px;
}
.rc-desc {
  font-size: .9rem;
  color: var(--muted);
  line-height: 1.85;
  margin-bottom: 22px;
  font-weight: 300;
}
.rc-tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.rc-tags span {
  font-family: var(--mono);
  font-size: .68rem;
  color: rgba(0,229,200,.65);
  border: 1px solid rgba(0,229,200,.15);
  padding: 4px 12px;
  border-radius: 2px;
}
.rc-doi {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: .78rem;
  border: 1px solid var(--glass-border);
  padding: 12px 22px;
  border-radius: 4px;
  transition: all .25s;
  letter-spacing: .04em;
}
.rc-doi:hover { border-color: var(--c); color: var(--c); }
.doi-pill {
  background: var(--c);
  color: var(--bg);
  font-weight: 700;
  font-size: .65rem;
  padding: 2px 8px;
  border-radius: 2px;
  letter-spacing: .08em;
}
.doi-arrow { margin-left: auto; }

/* ── CERTIFICATIONS ── */
#certifications {
  padding-bottom: 40px !important;
}
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.certificate-card {
  border: 1px solid var(--glass-border);
  background: var(--bg2);
  padding: 32px;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s, transform .4s cubic-bezier(.4,0,.2,1), box-shadow .4s;
  display: flex;
  flex-direction: column;
  cursor: none;
  transform-style: preserve-3d;
}
.certificate-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mx,50%) var(--my,50%), rgba(0,229,200,.06), transparent 40%);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}
.certificate-card:hover::after { opacity: 1; }
.certificate-card:hover { border-color: rgba(0,229,200,.3); box-shadow: 0 20px 60px rgba(0,0,0,.4); }

.cert-issuer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.cert-issuer {
  font-family: var(--mono);
  font-size: .65rem;
  color: var(--c);
  letter-spacing: .08em;
  font-weight: 700;
}
.cert-date {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--muted);
}
.certificate-card h3 {
  font-family: var(--head);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -.01em;
  line-height: 1.35;
}
.certificate-card p {
  font-size: .82rem;
  color: var(--muted);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
  font-weight: 300;
}
.cert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}
.cert-tag {
  font-family: var(--mono);
  font-size: .65rem;
  color: rgba(0,229,200,.6);
  border: 1px solid rgba(0,229,200,.12);
  padding: 3px 8px;
  border-radius: 2px;
}
.cert-links-row {
  display: flex;
  gap: 16px;
  margin-top: auto;
  align-items: center;
}
.cert-link {
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color .2s;
}
.cert-link:hover { color: var(--c); }
.cert-link--accent {
  color: var(--c) !important;
  font-weight: 600;
}
.cert-link--accent:hover {
  color: #fff !important;
}

/* ── CERTIFICATE MODAL ── */
.cert-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 6, 0.85);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 20px;
}
.cert-modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.cert-modal-content {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  width: 100%;
  max-width: 900px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(0, 229, 200, 0.05);
  transform: scale(0.92) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.cert-modal-overlay.active .cert-modal-content {
  transform: scale(1) translateY(0);
}
.cert-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
}
.cert-modal-header h3 {
  font-family: var(--head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.cert-modal-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.cert-modal-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 6px;
  line-height: 1;
  transition: color 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cert-modal-close:hover {
  color: var(--c);
  transform: rotate(90deg);
}
.cert-modal-body {
  flex: 1;
  background: #111;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: auto;
}
.cert-iframe {
  width: 100%;
  height: 100%;
  border: none;
}
.cert-img-view {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  padding: 20px;
}

/* ── GITHUB ── */
#github { text-align: center; }
.github-wrap { text-align: center; }
.gh-sub { font-size: .85rem; color: var(--muted); margin-bottom: 24px; font-weight: 300; }
.github-graph {
  width: 100%;
  max-width: 920px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  transition: border-color .3s;
}
.github-graph:hover { border-color: rgba(0,229,200,.3); }
.gh-caption { font-family: var(--mono); font-size: .7rem; color: var(--muted); margin-top: 14px; letter-spacing: .06em; }

/* ── CONTACT ── */
#contact {
  text-align: center;
  padding-top: 100px !important;
  padding-bottom: 120px !important;
  max-width: 700px !important;
}
.contact-pre {
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--c);
  letter-spacing: .12em;
  margin-bottom: 20px;
}
.contact-heading {
  font-family: var(--head);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -.03em;
  color: var(--text);
  margin-bottom: 24px;
}
.contact-heading em {
  font-style: normal;
  -webkit-text-stroke: 2px var(--c);
  color: transparent;
}
.contact-sub {
  font-size: .9rem;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 44px;
  font-weight: 300;
}
.contact-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px; }
.contact-alt { display: flex; gap: 28px; justify-content: center; flex-wrap: wrap; }
.contact-alt a {
  font-family: var(--mono);
  font-size: .74rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: .04em;
  transition: color .2s;
}
.contact-alt a:hover { color: var(--c); }

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 30px;
  border-top: 1px solid var(--glass-border);
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  letter-spacing: .04em;
}
.fdot { color: var(--c); }

/* ── REVEAL ANIMATION ── */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1);
}
[data-reveal].revealed {
  opacity: 1;
  transform: none;
}
[data-reveal]:nth-child(2) { transition-delay: .1s; }
[data-reveal]:nth-child(3) { transition-delay: .2s; }
[data-reveal]:nth-child(4) { transition-delay: .3s; }

@keyframes revealUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ── RESUME MODAL ── */
.resume-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 6, 0.85);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 20px;
}
.resume-modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.resume-modal-content {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  width: 100%;
  max-width: 900px;
  height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(0, 229, 200, 0.05);
  transform: scale(0.92) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.resume-modal-overlay.active .resume-modal-content {
  transform: scale(1) translateY(0);
}
.resume-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.2);
}
.resume-modal-header h3 {
  font-family: var(--head);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.resume-modal-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.resume-modal-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 6px;
  line-height: 1;
  transition: color 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.resume-modal-close:hover {
  color: var(--c);
  transform: rotate(90deg);
}
.resume-modal-body {
  flex: 1;
  background: #111;
  position: relative;
}
.resume-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ── CODING ACTIVITY ── */
.activity-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 920px;
  margin: 0 auto;
}
.graph-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.graph-title {
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--c);
  margin-bottom: 16px;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.leetcode-graph {
  width: 100%;
  max-width: 920px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  transition: border-color .3s;
  padding: 24px;
  background: rgba(6, 10, 9, 0.4);
}
.leetcode-graph:hover {
  border-color: rgba(0, 229, 200, 0.3);
}

/* ── MOBILE ── */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .certificates-grid { grid-template-columns: 1fr 1fr; }
  .side-builds-grid { grid-template-columns: 1fr 1fr; }
  .side-card--hero { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  body { cursor: auto; }
  .cursor, .cursor-follower { display: none; }
  .hero-grid { grid-template-columns: 1fr; padding-top: 100px; }
  .hero-right { display: none; }
  .about-layout { grid-template-columns: 1fr; gap: 40px; } 
  .about-headline { position: static; font-size: 2.5rem; }
  .skills-block { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .certificates-grid { grid-template-columns: 1fr; }
  .side-builds-grid { grid-template-columns: 1fr; }
  .research-layout { grid-template-columns: 1fr; }
  .research-left { text-align: left; display: flex; align-items: center; gap: 16px; }
  .research-year { font-size: 2.5rem; }
  .research-card { border-radius: 8px; }
  section:not(#hero) { padding: 70px 20px; }
}