/* ═══════════════════════════════════════════════════════════════════════
   Robin Tomar — personal site
   Light-only. Warm grey ground, white cards, hairline borders,
   orange-red accent, neutral mono for all data/labels.
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --ground:      #F6F5F3;
  --card:        #FFFFFF;
  --ink:         #141414;
  --ink-soft:    #2A2A2A;
  --body:        #4B4B4B;
  --muted:       #8B8985;
  --line:        #E4E2DE;
  --line-soft:   #EFEDE9;
  --accent:      #F4511E;
  --accent-tint: #FFF1EC;

  --max:    1120px;
  --gutter: 32px;
  --radius: 12px;
  --nav-h:  64px;

  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }

body {
  margin: 0;
  background: var(--ground);
  color: var(--body);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { color: var(--ink); margin: 0; line-height: 1.15; letter-spacing: -0.02em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* ── Utility: mono eyebrow ─────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow--accent { color: var(--accent); }

/* ═══ NAV ══════════════════════════════════════════════════════════════ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  background: rgba(246, 245, 243, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 28px;
}

.wordmark {
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--ink);
  line-height: 1;
}
.wordmark::after { content: '.'; color: var(--accent); }

.nav-links { display: flex; gap: 22px; margin-right: auto; }

.nav-link {
  font-size: 14px;
  font-weight: 450;
  color: var(--body);
  transition: color 0.15s ease;
}
.nav-link:hover { color: var(--accent); }

.nav-social { display: flex; gap: 8px; }

.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--ink);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.icon-btn:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.icon-btn svg { width: 15px; height: 15px; }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--line);
  color: var(--ink);
  font-size: 15px;
  cursor: pointer;
}

/* ═══ HERO ═════════════════════════════════════════════════════════════ */
.hero { padding: 56px 0 0; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.hero-intro {
  padding: 52px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-name {
  font-size: clamp(40px, 6vw, 62px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.02;
}
.hero-name .dot { color: var(--accent); }

.hero-blurb {
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.65;
  color: var(--body);
  max-width: 54ch;
}

.hero-photo {
  overflow: hidden;
  padding: 0;
  min-height: 260px;
  max-height: 420px;
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 22%; }

/* ── Stat tiles ────────────────────────────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.tile {
  grid-column: span 2;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tile--wide { grid-column: span 3; }

.tile-value {
  font-size: 23px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.tile-value b { color: var(--accent); font-weight: 700; }
.tile-value sup { font-size: 0.55em; font-weight: 600; }
.tile-sub { font-size: 13px; color: var(--muted); line-height: 1.5; }

.tile--accent { background: var(--accent); border-color: var(--accent); }
.tile--accent .eyebrow { color: rgba(255,255,255,0.82); }
.tile--accent .tile-value { color: #fff; }
.tile--accent .tile-value b { color: #fff; }
.tile--accent .tile-sub { color: rgba(255,255,255,0.86); }

.tile--ink { background: var(--ink); border-color: var(--ink); }
.tile--ink .eyebrow { color: rgba(255,255,255,0.6); }
.tile--ink .tile-value { color: #fff; }
.tile--ink .tile-value b { color: var(--accent); }
.tile--ink .tile-sub { color: rgba(255,255,255,0.62); }

/* ═══ SECTION HEADER ═══════════════════════════════════════════════════ */
.section { padding: 78px 0 0; }
.section:last-of-type { padding-bottom: 78px; }

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 34px;
}

.sec-num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.sec-title {
  font-size: 27px;
  font-weight: 700;
  letter-spacing: -0.035em;
  flex-shrink: 0;
}

.sec-rule { flex: 1; height: 1px; background: var(--line); }

.sec-link {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  flex-shrink: 0;
  transition: color 0.15s ease;
}
.sec-link:hover { color: var(--accent); }

/* ═══ ABOUT ════════════════════════════════════════════════════════════ */
.about-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
}
.about-cols p + p { margin-top: 18px; }
.about-cols p { font-size: 15px; line-height: 1.72; }

/* ═══ TIMELINE ═════════════════════════════════════════════════════════ */
.timeline { display: flex; flex-direction: column; }

.tl-row {
  display: grid;
  grid-template-columns: 152px 40px 1fr;
  border-bottom: 1px solid var(--line);
}
.tl-row:last-child { border-bottom: 0; }

.tl-date {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
  padding: 26px 0 26px;
}

.tl-marker { position: relative; }
.tl-marker::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: -1px;
  width: 1px;
  background: var(--line);
  transform: translateX(-50%);
}
.tl-row:first-child .tl-marker::before { top: 32px; }
.tl-row:last-child  .tl-marker::before { bottom: auto; height: 32px; }

.tl-marker::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 28px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--ground);
  border: 1.5px solid var(--muted);
  transform: translate(-50%, -50%);
}
.tl-row--current .tl-marker::after {
  background: var(--accent);
  border-color: var(--accent);
  width: 11px;
  height: 11px;
}

.tl-body { padding: 24px 0 28px; }

.tl-role { font-size: 17px; font-weight: 650; letter-spacing: -0.02em; }
.tl-org { font-size: 14px; color: var(--body); margin-top: 3px; }
.tl-desc { font-size: 14px; line-height: 1.65; color: var(--body); margin-top: 10px; max-width: 68ch; }

.tl-sub {
  grid-column: 3;
  padding: 18px 0 6px;
  border-top: 1px solid var(--line);
}

.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

.tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--ground);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 9px;
}
.card .tag { background: var(--ground); }

/* ═══ TALKS ════════════════════════════════════════════════════════════ */
.talks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.talk {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}
.talk:hover { border-color: var(--accent); transform: translateY(-2px); }

.talk-title { font-size: 18px; font-weight: 650; letter-spacing: -0.02em; }
.talk-desc { font-size: 13.5px; line-height: 1.55; color: var(--muted); flex: 1; }
.talk-go { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--accent); text-transform: uppercase; }

.video-card {
  padding: 16px;
  max-width: 780px;
  margin: 0 auto;
}
.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink);
}
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 14px 8px 4px;
  flex-wrap: wrap;
}
.video-name { font-size: 14px; font-weight: 550; color: var(--ink); }

/* ═══ PROJECTS ═════════════════════════════════════════════════════════ */
.projects { display: flex; flex-direction: column; gap: 16px; }

.proj {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.18s ease;
}
.proj:hover { border-color: var(--accent); }

.proj-body { padding: 30px 32px; display: flex; flex-direction: column; gap: 12px; }

.proj-kicker { display: flex; align-items: center; gap: 10px; }

.pill {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
  padding: 4px 10px;
}

.proj-title { font-size: 22px; font-weight: 700; letter-spacing: -0.03em; }
.proj-desc { font-size: 14.5px; line-height: 1.62; color: var(--body); }
.proj-desc em { font-style: normal; border-bottom: 1.5px solid var(--accent); }

.proj-go {
  margin-top: 4px;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 16px;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.proj:hover .proj-go { background: var(--ink); color: #fff; border-color: var(--ink); }

.proj-media { position: relative; background: var(--ground); min-height: 240px; overflow: hidden; }
.proj-media img { width: 100%; height: 100%; object-fit: cover; }

.proj-media--blank {
  display: grid;
  place-items: center;
  background:
    repeating-linear-gradient(45deg, var(--line-soft) 0 1px, transparent 1px 11px),
    var(--ground);
}
.proj-media--blank span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 14px;
}

/* ═══ INTERESTS ════════════════════════════════════════════════════════ */
.notes-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

.note {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 26px 28px;
}
.note-title { font-size: 16px; font-weight: 650; letter-spacing: -0.02em; margin: 10px 0 10px; }
.note-desc { font-size: 13.5px; line-height: 1.62; color: var(--muted); }

/* ═══ CONTACT ══════════════════════════════════════════════════════════ */
.contact-card {
  padding: 44px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.contact-head { font-size: 26px; font-weight: 700; letter-spacing: -0.035em; }
.contact-sub { font-size: 14.5px; color: var(--muted); margin-top: 8px; max-width: 46ch; }

.contact-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  font-size: 13.5px;
  font-weight: 500;
  border-radius: 999px;
  padding: 11px 20px;
  border: 1px solid var(--line);
  background: var(--ground);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn:hover { border-color: var(--ink); }
.btn--solid { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--solid:hover { background: #d8410f; border-color: #d8410f; }
.btn svg { width: 14px; height: 14px; }

/* ═══ FOOTER ═══════════════════════════════════════════════════════════ */
.footer {
  margin-top: 78px;
  border-top: 1px solid var(--line);
  padding: 34px 0;
}
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-note { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; color: var(--muted); }

/* ═══ PROJECT DETAIL PAGES ═════════════════════════════════════════════ */
.detail { padding: 48px 0 0; }

.back {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-block;
  margin-bottom: 26px;
  transition: color 0.15s ease;
}
.back:hover { color: var(--accent); }

.detail-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 10px 0 16px;
  max-width: 20ch;
}

.detail-card { padding: 40px 44px; margin-top: 28px; }

/* The back link is inline-block; force the kicker onto its own line. */
.detail .eyebrow { display: block; }
.detail .back { display: block; width: fit-content; }

.detail-card .video-frame { max-width: 720px; margin: 4px 0 0; }
.detail-card .eyebrow a { color: var(--accent); }
.detail-card .eyebrow a:hover { text-decoration: underline; }

.detail-card h2 {
  font-size: 15px;
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 34px 0 14px;
}
.detail-card h2:first-child { margin-top: 0; }

.detail-card p { font-size: 15px; line-height: 1.72; margin-bottom: 14px; }
.detail-card ul { margin: 0 0 14px; padding: 0; list-style: none; }
.detail-card li {
  font-size: 15px;
  line-height: 1.66;
  padding-left: 22px;
  position: relative;
  margin-bottom: 10px;
}
.detail-card li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 10px;
  width: 6px;
  height: 1.5px;
  background: var(--accent);
}

/* ═══ REVEAL ═══════════════════════════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ═══ RESPONSIVE ═══════════════════════════════════════════════════════ */
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-photo { min-height: 300px; max-height: 380px; }
  .hero-intro { padding: 40px 32px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .tile, .tile--wide { grid-column: span 1; }
  .about-cols { grid-template-columns: 1fr; gap: 18px; }
  .talks-grid { grid-template-columns: 1fr; }
  .notes-grid { grid-template-columns: 1fr; }
  .proj { grid-template-columns: 1fr; }
  .proj-media { min-height: 200px; order: -1; }
  .detail-card { padding: 30px 26px; }
}

@media (max-width: 720px) {
  :root { --gutter: 20px; }
  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--card);
    border-bottom: 1px solid var(--line);
    padding: 6px 20px 14px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 11px 0; border-bottom: 1px solid var(--line-soft); }
  .nav-toggle { display: block; }
  .nav-social { display: none; }
  .stats { grid-template-columns: 1fr; }
  .section { padding-top: 56px; }
  .sec-title { font-size: 22px; }
  .sec-link { display: none; }
  .tl-row { grid-template-columns: 1fr; }
  .tl-marker { display: none; }
  .tl-date { padding: 22px 0 0; }
  .tl-body { padding: 8px 0 24px; }
  .tl-sub { grid-column: 1; }
  .contact-card { padding: 32px 26px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}