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

/* ── DESIGN TOKENS ────────────────────────────────────────── */
/* ── DARK THEME (default) ──────────────────────────────────── */
:root {
  --bg:       #080a0d;
  --bg2:      #0c1018;
  --bg3:      #111822;
  --text:     #f0e4c8;
  --t2:       #b09878;
  --t3:       #7a6448;
  --border:   #2a1e10;
  --accent:   #d4823c;
  --accent-s: rgba(212,130,60,0.09);
  --accent-m: rgba(212,130,60,0.2);
  --green:    #34d399;
  --green-s:  rgba(52,211,153,0.1);
  --nav-glass: rgba(8,6,4,0.88);
  --dot:       rgba(140,200,244,0.14);
  --card-bg:   rgba(255,255,255,0.02);
  --card-bg-h: rgba(255,255,255,0.04);
}

/* ── LIGHT THEME (Yara palette) ────────────────────────────── */
[data-theme="light"] {
  --bg:       #f2f1ef;
  --bg2:      #ffffff;
  --bg3:      #e8e7e5;
  --text:     #2e2e2e;
  --t2:       #5a5a5a;
  --t3:       #9a9a9a;
  --border:   #d0cfcd;
  --accent:   #4a8fc4;
  --accent-s: rgba(74,143,196,0.1);
  --accent-m: rgba(74,143,196,0.22);
  --green:    #22a86e;
  --green-s:  rgba(34,168,110,0.12);
  --nav-glass: rgba(242,241,239,0.88);
  --dot:       rgba(74,143,196,0.12);
  --card-bg:   rgba(255,255,255,0.55);
  --card-bg-h: rgba(255,255,255,0.75);
}

/* ── BASE ─────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px; line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  background-image: radial-gradient(circle, var(--dot) 1px, transparent 1px);
  background-size: 40px 40px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--text); text-decoration: none; }

/* ── NAV ──────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-glass);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 880px; margin: 0 auto; padding: 0 28px;
  display: flex; justify-content: space-between; align-items: center;
  height: 54px;
}
.nav-name { font-weight: 700; font-size: 0.9rem; display: flex; align-items: center; gap: 8px; }
.nav-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent); color: #fff;
  font-size: 0.62rem; font-weight: 800; letter-spacing: 0.02em;
  flex-shrink: 0;
}
.theme-toggle {
  background: none; border: none; padding: 4px;
  cursor: pointer; display: flex; align-items: center;
}
.theme-toggle img { display: block; transition: opacity 0.2s; }
.theme-toggle:hover img { opacity: 0.7; }
/* Dark mode: invert black SVG paths to white */
:root .theme-toggle img { filter: invert(1); }
[data-theme="light"] .theme-toggle img { filter: none; }
.nav-links { display: flex; gap: 6px; }
.nav-links a {
  font-size: 0.82rem; font-weight: 500; color: var(--t2);
  padding: 5px 10px; border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}
.nav-links a:hover { background: var(--accent-s); color: var(--accent); }
.nav-resume {
  background: var(--accent) !important;
  color: #fff !important;
  font-weight: 600 !important;
}
.nav-resume:hover { background: #3a7aad !important; color: #fff !important; }

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  background: transparent;
  border-bottom: 1px solid var(--border);
  position: relative; z-index: 2;
}
.hero-inner {
  max-width: 880px; margin: 0 auto; padding: 40px 28px 44px;
  display: flex; flex-direction: column; align-items: center;
  text-align: center;
  position: relative; z-index: 1;
}
.hero-text { width: 100%; }
.hero-3d {
  width: 420px; height: 400px;
  border: none; border-radius: 16px;
  margin: 4px 0 16px;
  flex-shrink: 0; display: block;
}

.hero-status {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--green); background: var(--green-s);
  border: 1px solid rgba(52,211,153,0.2);
  padding: 3px 10px; border-radius: 20px; margin-bottom: 16px;
}
.hero-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--green);
  animation: blink 2s infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

.hero-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 3rem; font-weight: 800; letter-spacing: -0.5px;
  line-height: 1.05; margin-bottom: 10px; color: var(--text);
}
.hero-role { font-size: 1rem; color: var(--t2); margin-bottom: 20px; }
.hero-role strong { color: var(--accent); font-weight: 600; }

.hero-tagline {
  font-size: 0.95rem; color: var(--t3); font-style: italic;
  margin-bottom: 10px; letter-spacing: 0.1px;
}
.hero-desc {
  font-size: 0.94rem; color: var(--t2); line-height: 1.78;
  margin-bottom: 22px; max-width: 480px;
  margin-left: auto; margin-right: auto;
}
.hero-facts {
  display: flex; flex-wrap: wrap; gap: 4px 20px;
  font-size: 0.8rem; color: var(--t3); margin-bottom: 24px;
}
.hero-links { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.hero-link {
  font-size: 0.83rem; font-weight: 600;
  padding: 7px 16px; border-radius: 7px;
  border: 1.5px solid var(--border);
  color: var(--t2); transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.hero-link:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-s); }
.hero-link.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.hero-link.primary:hover { background: #b86828; border-color: #b86828; color: #fff; }
.hero-link.icon-link { display: inline-flex; align-items: center; gap: 7px; }
.hero-link.icon-link svg { flex-shrink: 0; }

.hero-photo {
  width: 160px; height: 160px; border-radius: 14px;
  object-fit: cover; object-position: center top;
  flex-shrink: 0;
  border: 2px solid rgba(140,200,244,0.22);
  box-shadow: 0 8px 40px rgba(0,0,0,0.7), 0 0 0 1px rgba(140,200,244,0.06);
}

/* ── SPIDER WIREFRAME BACKGROUND (z=1, between bg and content) */
#sketch-canvas {
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.7s ease;
}
#sketch-canvas.sketch-visible { opacity: 1; }

/* ── LAYOUT ───────────────────────────────────────────────── */
.wrap  { max-width: 880px; margin: 0 auto; padding: 0 28px; }
main   { position: relative; z-index: 2; background: transparent; overflow-x: clip; }
footer { position: relative; z-index: 2; }
.section { padding: 48px 0; border-top: 1px solid var(--border); }

.sec-head { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.sec-label {
  font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 1.5px; color: var(--accent);
  white-space: nowrap;
  background: var(--accent-s);
  border: 1px solid var(--accent-m);
  border-radius: 8px;
  padding: 5px 16px;
}
.sec-line { flex: 1; height: 1px; background: var(--border); }

/* ── EXPERIENCE ───────────────────────────────────────────── */
.exp-item {
  border-top: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding-left: 20px; margin-left: -20px;
  padding-bottom: 36px;
}
.exp-item + .exp-item { margin-top: 4px; }

.exp-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 0 10px; gap: 12px; flex-wrap: wrap;
}
.exp-lhs { display: flex; align-items: center; gap: 12px; min-width: 0; flex-wrap: wrap; }
.exp-co { font-weight: 700; font-size: 1rem; white-space: nowrap; }
.exp-sep { color: var(--border); }
.exp-role-label { font-size: 0.875rem; color: var(--t2); }

.exp-rhs { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.exp-now {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.68rem; font-weight: 700; color: var(--green);
  text-transform: uppercase; letter-spacing: 0.5px;
  background: var(--green-s); border: 1px solid rgba(52,211,153,0.2);
  padding: 2px 8px; border-radius: 20px;
}
.exp-now-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--green); animation: blink 2s infinite; }
.exp-date-label { font-size: 0.8rem; color: var(--t3); white-space: nowrap; }
.exp-location { font-size: 0.78rem; color: var(--t3); margin-bottom: 10px; }

.exp-kpis { display: flex; gap: 20px; margin-bottom: 12px; flex-wrap: wrap; }
.exp-kpi { display: flex; flex-direction: column; gap: 2px; }
.kpi-num { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.5px; line-height: 1; color: var(--accent); }
.kpi-lbl { font-size: 0.64rem; color: var(--t3); text-transform: uppercase; letter-spacing: 0.6px; }

.exp-bullets { list-style: none; display: flex; flex-direction: column; gap: 7px; margin-bottom: 12px; }
.exp-bullets li { font-size: 0.88rem; color: var(--t2); line-height: 1.7; padding-left: 14px; position: relative; }
.exp-bullets li::before { content: '–'; position: absolute; left: 0; color: var(--t3); }

.exp-chips { display: flex; flex-wrap: wrap; gap: 6px; }

/* ── WRITING ──────────────────────────────────────────────── */
.post-card {
  border: 1.5px solid var(--border); border-radius: 12px;
  padding: 26px 30px;
  transition: border-color 0.2s, transform 0.15s;
}
.post-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.post-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.post-tag {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--accent); background: var(--accent-s); border: 1px solid var(--accent-m);
  padding: 2px 8px; border-radius: 4px;
}
.post-date { font-size: 0.76rem; color: var(--t3); }
.post-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 14px; line-height: 1.3; color: var(--text); }
.post-body { font-size: 0.875rem; color: var(--t2); line-height: 1.8; }
.post-body p { margin-bottom: 13px; }
.post-body p:last-child { margin-bottom: 0; }
.post-card-link { display: block; text-decoration: none; color: inherit; }
.post-footer { margin-top: 16px; font-size: 0.78rem; color: var(--accent); font-weight: 600; }

.thought-card {
  border: 1.5px solid var(--border); border-radius: 12px;
  padding: 22px 28px; display: flex; flex-direction: column; gap: 10px;
  transition: border-color 0.2s, transform 0.15s; margin-top: 12px;
}
.thought-label {
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.8px; color: var(--t3);
}
.thought-quote {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.05rem; font-style: italic; color: var(--text);
  line-height: 1.55; margin: 0; border: none; padding: 0;
}

.grad-photo {
  width: 80px; height: 80px; border-radius: 10px;
  object-fit: cover; object-position: center top;
  flex-shrink: 0; border: 1px solid var(--border);
}
.edu-caption { font-size: 0.78rem; font-style: italic; color: var(--t3); margin-top: 5px; }

/* ── OPEN SOURCE ──────────────────────────────────────────── */
.oss-list { display: flex; flex-direction: column; }
.oss-item {
  padding: 20px 0; border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 9px;
}
.oss-item:first-child { border-top: 1px solid var(--border); }
.oss-top { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.oss-name {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.88rem; font-weight: 600; color: var(--text);
  transition: color 0.15s;
}
.oss-name:hover { color: var(--accent); text-decoration: none; }
.oss-badge {
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--accent); background: var(--accent-s); border: 1px solid var(--accent-m);
  padding: 1px 7px; border-radius: 4px;
}
.oss-meta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.oss-lang { font-size: 0.76rem; color: var(--t3); display: flex; align-items: center; gap: 5px; }
.oss-lang-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.oss-stars { font-size: 0.76rem; color: var(--t3); }
.oss-desc { font-size: 0.875rem; color: var(--t2); line-height: 1.65; }
.oss-links { display: flex; gap: 14px; }

.chip {
  font-size: 0.72rem; font-weight: 500; padding: 2px 9px; border-radius: 5px;
  background: var(--accent-s); color: var(--accent); border: 1px solid var(--accent-m);
}

/* ── PROJECTS ─────────────────────────────────────────────── */
.ytabs { display: flex; gap: 6px; margin-bottom: 22px; flex-wrap: wrap; }
.ytab {
  padding: 5px 14px; border-radius: 7px; border: 1.5px solid var(--border);
  background: none; font-size: 0.78rem; font-weight: 600;
  color: var(--t2); cursor: pointer; font-family: inherit; transition: all 0.15s;
}
.ytab:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-s); }
.ytab.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.proj-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.proj-card {
  border: 1.5px solid var(--border); border-radius: 10px; padding: 18px 20px;
  display: flex; flex-direction: column; gap: 7px;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  background: var(--bg2);
}
.proj-card:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 28px rgba(0,0,0,0.35);
  transform: translateY(-3px);
}
.proj-card.hidden { display: none; }
.proj-card.feat { grid-column: span 2; flex-direction: row; gap: 24px; }
.proj-left { flex: 1; display: flex; flex-direction: column; gap: 7px; }
.proj-right { flex: 0 0 auto; display: flex; flex-direction: column; justify-content: flex-end; }

.proj-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.proj-name { font-weight: 700; font-size: 0.92rem; line-height: 1.3; }
.proj-year {
  font-size: 0.68rem; font-weight: 700; flex-shrink: 0;
  color: var(--accent); background: var(--accent-s); border: 1px solid var(--accent-m);
  padding: 1px 7px; border-radius: 4px;
}
.proj-stack { font-size: 0.76rem; color: var(--t3); line-height: 1.5; }
.proj-desc { font-size: 0.84rem; color: var(--t2); line-height: 1.65; flex: 1; }
.proj-links { display: flex; gap: 12px; margin-top: 4px; }
.proj-link {
  font-size: 0.78rem; font-weight: 600; color: var(--accent);
  text-decoration: underline; text-underline-offset: 3px; transition: color 0.15s;
}
.proj-link:hover { color: var(--accent); }

/* ── SKILLS ───────────────────────────────────────────────── */
.sk-grid { display: grid; grid-template-columns: 120px 1fr; }
.sk-row { display: contents; }
.sk-cat {
  padding: 13px 0; border-bottom: 1px solid var(--border);
  font-size: 0.74rem; font-weight: 600; color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.8px;
  display: flex; align-items: flex-start; padding-top: 16px;
}
.sk-val { padding: 13px 0; border-bottom: 1px solid var(--border); font-size: 0.875rem; color: var(--t2); line-height: 1.72; }
.sk-row:last-child .sk-cat, .sk-row:last-child .sk-val { border-bottom: none; }

/* ── EDUCATION ────────────────────────────────────────────── */
.edu-list { display: flex; flex-direction: column; }
.edu-item {
  display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
  padding: 15px 0; border-bottom: 1px solid var(--border);
}
.edu-item:first-child { border-top: 1px solid var(--border); }
.edu-deg { font-weight: 700; font-size: 0.9rem; margin-bottom: 3px; }
.edu-sch { font-size: 0.82rem; color: var(--t2); }
.edu-gpa {
  display: inline-block; margin-top: 6px;
  font-size: 0.72rem; font-weight: 700; color: var(--green);
  background: var(--green-s); border: 1px solid rgba(52,211,153,0.2);
  padding: 2px 8px; border-radius: 5px;
}
.edu-r { text-align: right; flex-shrink: 0; font-size: 0.8rem; color: var(--t3); line-height: 1.6; }

/* ── RECOGNITION ──────────────────────────────────────────── */
.recog-list { display: flex; flex-direction: column; }
.recog-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--border);
}
.recog-item:first-child { border-top: 1px solid var(--border); }
.recog-badge {
  flex-shrink: 0; margin-top: 1px; width: 34px; height: 34px; border-radius: 8px;
  background: var(--accent-s); border: 1px solid var(--accent-m);
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
}
.recog-title { font-weight: 700; font-size: 0.9rem; margin-bottom: 3px; }
.recog-sub { font-size: 0.82rem; color: var(--t2); line-height: 1.55; }

/* ── VOLUNTEERING ─────────────────────────────────────────── */
.vol-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.vol-tag {
  font-size: 0.78rem; font-weight: 500; color: var(--t2);
  padding: 4px 13px; border-radius: 20px;
  border: 1px solid var(--border); background: var(--bg2);
  transition: border-color 0.15s, color 0.15s;
}
.vol-tag:hover { border-color: var(--accent); color: var(--accent); }

/* ── CONTACT ──────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-card {
  border: 1.5px solid var(--border); border-radius: 10px; padding: 16px 18px;
  transition: all 0.15s; display: flex; flex-direction: column; gap: 3px;
}
.contact-card:hover { border-color: var(--accent); background: var(--accent-s); transform: translateY(-2px); }
.contact-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; color: var(--t3); }
.contact-val { font-size: 0.9rem; font-weight: 600; color: var(--text); }

.social-links { display: flex; gap: 12px; flex-wrap: wrap; }
.social-card {
  display: flex; align-items: center; gap: 16px;
  border: 1.5px solid var(--border); border-radius: 12px;
  padding: 16px 22px; flex: 1; min-width: 180px;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.social-card:hover { border-color: var(--accent); background: var(--accent-s); transform: translateY(-2px); }
.social-card svg { flex-shrink: 0; color: var(--text); transition: color 0.2s; }
.social-card:hover svg { color: var(--accent); }
.social-name { font-weight: 700; font-size: 0.92rem; color: var(--text); margin-bottom: 1px; }
.social-handle { font-size: 0.78rem; color: var(--t3); }

/* ── TIMELINE ─────────────────────────────────────────────── */
.sec-label-lg {
  font-size: 1.7rem; font-weight: 700;
  letter-spacing: 1px; color: var(--accent);
  white-space: nowrap; text-transform: uppercase;
  background: var(--accent-s);
  border: 1px solid var(--accent-m);
  border-radius: 10px;
  padding: 8px 24px;
}

/* Centered heading for timeline sections */
.sec-head-tl {
  justify-content: center;
  gap: 14px;
  margin-bottom: 32px;
}
.sec-head-tl .sec-line { flex: 0 0 52px; }

.timeline {
  position: relative;
  padding: 16px 0 48px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.tl-line {
  position: absolute;
  left: 28px; top: 0;
  width: 2px; height: 0;
  background: linear-gradient(to bottom, var(--accent) 0%, var(--border) 90%, transparent 100%);
  pointer-events: none;
  z-index: 0;
  transition: height 0.15s linear;
}

.tl-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: start;
  gap: 0 20px;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.tl-node {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  position: relative; z-index: 2;
}
.tl-dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px var(--accent-m);
  flex-shrink: 0;
}
.tl-date {
  font-size: 0.6rem; font-weight: 600; color: var(--t3);
  letter-spacing: 0.08em; text-align: center; white-space: nowrap;
  text-transform: uppercase;
}

.tl-card {
  background: var(--card-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: none;
  border-radius: 16px;
  padding: 16px 18px;
  max-width: 600px;
  transition: background 0.2s;
}
.tl-card:hover {
  background: var(--card-bg-h);
}

.tl-spacer { display: none; }

/* All items: node left (col 1), card right (col 2) */
.tl-right .tl-node,
.tl-left  .tl-node { grid-column: 1; grid-row: 1; }
.tl-right .tl-card,
.tl-left  .tl-card { grid-column: 2; grid-row: 1; }

/* Override standard translateY reveal for timeline items */
.tl-item.r { opacity: 1; transform: none; }
.tl-right.r .tl-card,
.tl-left.r  .tl-card { opacity: 0; transform: translateX(40px); transition: opacity 0.55s ease, transform 0.55s ease; }
.tl-item.r  .tl-node { opacity: 0; transition: opacity 0.4s ease 0.25s; }
.tl-right.in .tl-card,
.tl-left.in  .tl-card { opacity: 1; transform: none; }
.tl-item.in  .tl-node { opacity: 1; }

/* ── PROJECTS + HACKATHONS: 2-column side-by-side grid ──────── */
#tl-projects, #tl-hackathons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: none;
}
#tl-projects .tl-line, #tl-projects .tl-node, #tl-projects .tl-spacer,
#tl-hackathons .tl-line, #tl-hackathons .tl-node, #tl-hackathons .tl-spacer { display: none; }
#tl-projects .tl-item, #tl-hackathons .tl-item   { display: block; margin-bottom: 0; }
#tl-projects .tl-card, #tl-hackathons .tl-card   { max-width: none; height: 100%; box-sizing: border-box; }
#tl-projects .tl-right.r .tl-card, #tl-projects .tl-left.r  .tl-card,
#tl-hackathons .tl-right.r .tl-card, #tl-hackathons .tl-left.r .tl-card { transform: translateY(14px); }
#tl-projects .proj-year { display: none; }

@media (max-width: 640px) {
  .timeline { margin-left: 0; margin-right: 0; }
  .tl-item {
    grid-template-columns: 28px 1fr;
    gap: 0 12px;
    align-items: start;
  }
  .tl-right .tl-spacer,
  .tl-left  .tl-spacer { display: none; }
  .tl-right .tl-node,
  .tl-left  .tl-node   { grid-column: 1; grid-row: 1; padding-top: 6px; }
  .tl-right .tl-card,
  .tl-left  .tl-card   { grid-column: 2; grid-row: 1; }
  .tl-right.r .tl-card,
  .tl-left.r  .tl-card { transform: translateX(0); }
  .tl-line { left: 14px; transform: none; }
}

/* ── FOOTER ───────────────────────────────────────────────── */
footer { border-top: 1px solid var(--border); background: var(--bg3); }
.foot-inner {
  max-width: 880px; margin: 0 auto; padding: 20px 28px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.78rem; color: var(--t3);
}
.back-top { transition: color 0.15s; }
.back-top:hover { color: var(--accent); }

/* ── REVEAL ───────────────────────────────────────────────── */
.r { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.r.in { opacity: 1; transform: none; }
.r.d1 { transition-delay: 0.07s; }
.r.d2 { transition-delay: 0.14s; }
.r.d3 { transition-delay: 0.21s; }
.r.d4 { transition-delay: 0.28s; }
.r.d5 { transition-delay: 0.35s; }
.r.d6 { transition-delay: 0.42s; }

.ha { opacity: 0; transform: translateY(16px); animation: heroFade 0.6s ease forwards; }
.ha.a1 { animation-delay: 0.05s; }
.ha.a2 { animation-delay: 0.15s; }
.ha.a3 { animation-delay: 0.25s; }
.ha.a4 { animation-delay: 0.35s; }
.ha.a5 { animation-delay: 0.45s; }
.ha.a6 { animation-delay: 0.55s; }
@keyframes heroFade { to { opacity: 1; transform: none; } }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero-inner { gap: 0; padding: 28px 20px 32px; }
  .hero-name { font-size: 2.1rem; }
  .hero-3d { width: 100%; max-width: 100%; height: 300px; }
  .proj-grid { grid-template-columns: 1fr; }
  .proj-card.feat { grid-column: span 1; flex-direction: column; }
  .sk-grid { grid-template-columns: 1fr; }
  .sk-cat { border-bottom: none; padding-bottom: 2px; }
  .edu-item { flex-direction: column; gap: 4px; }
  .edu-r { text-align: left; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav-inner, .wrap { padding-left: 16px; padding-right: 16px; }
  .exp-lhs { flex-wrap: wrap; gap: 4px; }
}