/* Landing page layout — profile, platform map, tracks, expertise, lab, start paths.
   Uses the colour tokens from site.css, so light/dark mode follows the rest of the site. */

.lp { max-width: 1160px; margin: 0 auto; padding: 0 20px; overflow-x: clip; }
.lp section { padding: 56px 0; border-top: 1px solid var(--border); }
.lp section:first-child { border-top: 0; }
.lp h2 { font-size: clamp(24px, 3.2vw, 32px); letter-spacing: -.02em; line-height: 1.2; margin: 0 0 8px; }
.lp .lede { color: var(--text-muted); margin: 0 0 28px; max-width: 68ch; }
.lp .kicker { font: 600 12px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-text); margin: 0 0 14px; }

/* ---------- profile ---------- */
/* Intro text and photo side by side, both about the same height, on a soft dotted backdrop */
.profile { position: relative; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 56px; align-items: center; padding: clamp(48px, 7vw, 88px) 0 56px !important; isolation: isolate; }
.profile::before {
  content: ""; position: absolute; inset: 0 -40px; z-index: -1; pointer-events: none;
  background:
    radial-gradient(520px 380px at 82% 45%, var(--accent-soft), transparent 70%),
    radial-gradient(circle, color-mix(in srgb, var(--border-strong) 70%, transparent) 1px, transparent 1.4px) 0 0 / 22px 22px;
  -webkit-mask-image: radial-gradient(ellipse 560px 420px at 80% 48%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 560px 420px at 80% 48%, #000 30%, transparent 75%);
}
.profile h1 { font-size: clamp(38px, 6vw, 64px); line-height: 1.04; letter-spacing: -.035em; font-weight: 800; margin: 0 0 20px; }
.profile h1 span { color: var(--accent); }
.profile .intro { font-size: clamp(17px, 1.9vw, 19px); color: var(--text-muted); margin: 0 0 22px; max-width: 56ch; }
.profile .focus { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 30px; padding: 0; list-style: none; }
.profile .focus li { font-size: 13.5px; font-weight: 600; padding: 6px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-text); }

.photo-col { display: flex; flex-direction: column; align-items: center; }
.contact-row { margin-top: 38px; display: flex; align-items: stretch; gap: 8px; max-width: 100%; }
.copy-email { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; padding: 8px 12px; border-radius: 12px; background: var(--bg-elev); border: 1px solid var(--border); color: var(--text-muted); font: 600 11px/1.2 var(--font-sans); cursor: pointer; }
.copy-email:hover { border-color: var(--accent); color: var(--text); }
.copy-email svg { width: 18px; height: 18px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.copy-email.copied { border-color: var(--accent); color: var(--accent); }
.contact { display: inline-flex; align-items: center; gap: 12px; padding: 10px 16px; border-radius: 12px; background: var(--bg-elev); border: 1px solid var(--border); color: var(--text); text-decoration: none; font-size: 14px; font-weight: 600; line-height: 1.3; max-width: 100%; }
.contact:hover { border-color: var(--accent); }
.contact b { display: block; font: 600 10.5px/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); }
.contact span { overflow-wrap: anywhere; }
.contact svg { flex: none; width: 20px; height: 20px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.photo-wrap { position: relative; width: 100%; max-width: 330px; }
/* offset accent frame behind the photo */
.photo-wrap::before { content: ""; position: absolute; inset: 0; transform: translate(16px, 16px); border: 2px solid var(--accent); border-radius: 20px; z-index: -1; }
.portrait { margin: 0; border-radius: 20px; overflow: hidden; border: 1px solid var(--border); background: var(--bg-sunk); box-shadow: 0 2px 4px rgba(20,20,30,.06), 0 18px 40px rgba(20,20,30,.14); }
.portrait img { display: block; width: 100%; height: auto; }
/* discourage casual saving: no drag, no long-press menu, and a transparent shield over the photo so right-click never targets the image */
.protected { position: relative; -webkit-touch-callout: none; user-select: none; -webkit-user-select: none; }
.protected img { pointer-events: none; -webkit-user-drag: none; user-drag: none; }
.protected::after { content: ""; position: absolute; inset: 0; background: transparent; }
/* "Now writing" badge overlapping the photo's bottom-left corner */
.now { position: absolute; left: -28px; bottom: 28px; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 12px; background: var(--bg-elev); border: 1px solid var(--border); box-shadow: var(--shadow); color: var(--text); text-decoration: none; font-size: 13.5px; font-weight: 600; line-height: 1.3; }
.now:hover { border-color: var(--accent); }
.now b { display: block; font: 600 10.5px/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); }
.now i { flex: none; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 7px transparent; } }
@media (prefers-reduced-motion: reduce) { .now i { animation: none; } }

/* ---------- at a glance band ---------- */
.lp .glance-band { padding: 0 0 56px; border-top: 0; }
/* 1px gaps over a border-coloured background draw the cell lines at any column count */
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 16px 16px 0 0; overflow: hidden; }
.metrics div { padding: 22px 24px; background: var(--bg-elev); }
.metrics b { display: block; font-size: 36px; font-weight: 800; letter-spacing: -.03em; line-height: 1.05; color: var(--accent-text); }
.metrics span { font-size: 13.5px; color: var(--text-muted); }
.toolbox { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-top: 0; border-radius: 0 0 16px 16px; overflow: hidden; }
.toolbox li { margin: 0; padding: 16px 16px 18px; background: var(--bg-sunk); font-size: 13.5px; line-height: 1.5; }
.toolbox b { display: block; font: 600 10.5px/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 6px; }

/* ---------- platform map ---------- */
.flow { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; position: relative; }
.stage { position: relative; display: flex; flex-direction: column; padding: 16px 16px 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--bg-elev); color: var(--text); text-decoration: none; transition: border-color .15s, transform .15s; }
a.stage:hover { border-color: var(--accent); transform: translateY(-2px); }
.stage:not(:last-child)::after { content: "→"; position: absolute; right: -14px; top: 50%; width: 14px; text-align: center; transform: translateY(-50%); color: var(--accent); font-weight: 700; }
.stage .n { font: 600 11px/1 var(--font-mono); color: var(--text-faint); letter-spacing: .08em; margin-bottom: 10px; }
.stage strong { font-size: 16px; line-height: 1.3; margin-bottom: 6px; }
.stage small { font-size: 13px; color: var(--text-muted); line-height: 1.5; }
.stage .goes { margin-top: auto; padding-top: 12px; font-size: 12px; font-weight: 600; color: var(--accent-text); }
.stage.plain { background: var(--bg-sunk); }
/* the last stage has two consumers, each its own link */
.stage.use strong { margin-bottom: 2px; }
.stage .sub { display: flex; flex-direction: column; padding: 8px 0 2px; border-top: 1px solid var(--border); margin-top: 8px; color: var(--text); text-decoration: none; }
.stage .sub b { font-size: 13.5px; }
.stage .sub .goes { margin-top: 2px; padding-top: 4px; }
.stage .sub:hover b { color: var(--accent-text); }
.lp .aside-note { margin: 14px 0 0; font-size: 13.5px; color: var(--text-faint); }
.band { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 16px; margin-top: 12px; padding: 12px 16px; border: 1px dashed var(--border-strong); border-radius: 12px; color: var(--text); text-decoration: none; font-size: 14px; }
a.band:hover { border-color: var(--accent); border-style: solid; }
.band b { font-weight: 650; }
.band span { color: var(--text-muted); }
.band em { font-style: normal; font-weight: 600; color: var(--accent-text); font-size: 13px; }

/* ---------- tracks ---------- */
/* 6-column grid, 3 tiles a row; a short last row stretches to fill the width (1 tile = full, 2 tiles = halves) */
.tracks { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 18px; }
.tracks .tile { grid-column: span 2; }
.tracks .tile:last-child:nth-child(3n+1) { grid-column: 1 / -1; }
.tracks .tile:nth-last-child(2):nth-child(3n+1),
.tracks .tile:last-child:nth-child(3n+2) { grid-column: span 3; }
@media (max-width: 1080px) {
  .tracks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tracks .tile,
  .tracks .tile:last-child:nth-child(3n+1),
  .tracks .tile:nth-last-child(2):nth-child(3n+1),
  .tracks .tile:last-child:nth-child(3n+2) { grid-column: auto; }
  .tracks .tile:last-child:nth-child(2n+1) { grid-column: 1 / -1; }
}
.tile { display: flex; flex-direction: column; padding: 24px; border: 1px solid var(--border); border-radius: 16px; background: var(--bg-elev); }
.tile-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.tile-num { font: 700 13px/1 var(--font-mono); color: var(--accent-text); background: var(--accent-soft); border-radius: 8px; padding: 7px 9px; }
.tile-meta { font: 600 11px/1 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--text-faint); }
.tile h3 { font-size: 22px; letter-spacing: -.015em; line-height: 1.25; margin: 0 0 8px; }
.tile h3 a { color: var(--text); text-decoration: none; }
.tile h3 a:hover { color: var(--accent-text); }
.tile > p { color: var(--text-muted); font-size: 15px; line-height: 1.6; margin: 0 0 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; padding: 0; list-style: none; }
.chips li { font: 500 12px/1 var(--font-mono); padding: 6px 8px; border-radius: 6px; border: 1px solid var(--border); color: var(--text-muted); background: var(--bg); }
.tuts { list-style: none; padding: 0; margin: auto 0 0; border-top: 1px solid var(--border); }
.tuts li { border-bottom: 1px solid var(--border); }
.tuts a { display: block; padding: 12px 0; text-decoration: none; color: var(--text); }
.tuts a:hover .tt { color: var(--accent-text); }
.tuts .tt { display: block; font-weight: 600; font-size: 15px; line-height: 1.4; }
.tuts .pg { display: block; font-size: 12.5px; color: var(--text-faint); margin-top: 6px; }
.tuts .pg .progress { height: 4px; margin: 0 0 6px; }

/* ---------- expertise ---------- */
.skills { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 0; border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: var(--bg-elev); }
.skill { padding: 22px 24px; border-right: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: 0 -1px -1px 0; }
.skill h3 { font-size: 17px; margin: 0 0 10px; letter-spacing: -.01em; }
.skill ul { margin: 0 0 14px; padding-left: 18px; color: var(--text-muted); font-size: 14.5px; line-height: 1.65; }
.skill .proof { font-size: 13px; color: var(--text-faint); }
.skill .proof a { font-weight: 600; }
.skill.wide { grid-column: 1 / -1; }
.skill.wide ul { columns: 2; column-gap: 40px; }
.tile.new { border-style: dashed; border-color: var(--accent); }
@media (max-width: 760px) { .skill.wide ul { columns: 1; } }

/* ---------- lab ---------- */
.lab { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.lab div { padding: 18px; border-radius: 12px; background: var(--bg-sunk); border: 1px solid var(--border); }
.lab b { display: block; font-size: 15px; margin-bottom: 4px; }
.lab span { font-size: 13.5px; color: var(--text-muted); line-height: 1.5; display: block; }

/* ---------- start paths ---------- */
.paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.path { display: flex; flex-direction: column; padding: 22px; border-radius: 14px; border: 1px solid var(--border); background: var(--bg-elev); color: var(--text); text-decoration: none; transition: border-color .15s, transform .15s; }
.path:hover { border-color: var(--accent); transform: translateY(-2px); }
.path .who { font: 600 11px/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-faint); margin-bottom: 10px; }
.path strong { font-size: 17px; line-height: 1.35; margin-bottom: 6px; }
.path span { font-size: 14px; color: var(--text-muted); line-height: 1.55; }
.path .go { margin-top: 14px; font-weight: 600; font-size: 14px; color: var(--accent-text); }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .profile { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .photo-col { order: -1; align-items: flex-start; }
  .photo-wrap { max-width: 240px; }
  .now { left: auto; right: -40px; bottom: 20px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .toolbox { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .stage:not(:last-child)::after { content: "↓"; right: auto; left: 50%; top: auto; bottom: -18px; transform: translateX(-50%); }
  .paths { grid-template-columns: minmax(0, 1fr); }
  .lab { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .lp { padding: 0 16px; }
  .lp section { padding: 40px 0; }
  .tracks, .skills, .lab { grid-template-columns: minmax(0, 1fr); }
  .metrics b { font-size: 28px; }
  .metrics div { padding: 18px 16px; }
  .photo-wrap { max-width: 200px; }
  .now { right: -24px; padding: 8px 12px; font-size: 12.5px; }
}