/* ============================================================
   Dave Robertson — Profile
   Design tokens, layout, components. No inline styles.
   Breakpoints (grouped per component): 480, 720, 820, 860px
   ============================================================ */

:root {
  --bg: #0d0e11;
  --bg-2: #14161b;
  --panel: #181b21;
  --line: #2a2e37;
  --ink: #ece9e3;
  --muted: #9aa0ab;
  --faint: #8d95a2; /* AA-compliant on --bg for small text (~6.4:1) */
  --amber: #e8a13a;
  --amber-soft: #f0c074;
  --signal: #4fd1c5;
  --display: "Archivo", sans-serif;
  --mono: "JetBrains Mono", monospace;
  --body: "Newsreader", Georgia, serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.06;
  pointer-events: none;
  z-index: 0;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 1; }
.mono { font-family: var(--mono); }

/* Accessibility helpers */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -60px;
  background: var(--amber); color: #0d0e11;
  font-family: var(--mono); font-size: 13px; font-weight: 700;
  padding: 12px 16px; border-radius: 0 0 8px 8px; z-index: 100;
  transition: top .15s ease;
}
.skip-link:focus { top: 0; }

/* Visible keyboard focus everywhere (iPad/desktop) */
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Overflow safety: media never forces horizontal scroll */
img, svg, video, table { max-width: 100%; }
html, body { max-width: 100%; }

/* Utility spacing / measure */
.section-intro { max-width: 700px; margin-bottom: 28px; }
.measure { max-width: 720px; }
.mt-md { margin-top: 30px; }
.mt-xl { margin-top: 40px; }
.subsection-title { font-family: var(--display); font-weight: 700; margin: 42px 0 6px; font-size: 20px; }

/* ---------- Nav ---------- */
nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(13,14,17,0.72);
  border-bottom: 1px solid var(--line);
}
nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-family: var(--mono); font-weight: 700; letter-spacing: 0.04em; font-size: 14px; flex-shrink: 0; }
.brand b { color: var(--amber); }
.navlinks { display: flex; gap: 22px; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; }
.navlinks a { color: var(--muted); text-decoration: none; transition: color .2s; flex-shrink: 0; display: inline-flex; align-items: center; min-height: 44px; padding: 0 4px; }
.navlinks a:hover, .navlinks a:focus-visible { color: var(--amber); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  padding: 110px 0 80px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 380px at 80% -10%, rgba(232,161,58,0.16), transparent 60%),
    linear-gradient(180deg, rgba(13,14,17,0.55), rgba(13,14,17,0.92)),
    url("assets/hero-bg.jpg") center/cover no-repeat;
  opacity: 0.62;
  z-index: 0;
}
.hero .wrap.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
  gap: 46px;
  align-items: center;
}
.hero-copy { min-width: 0; }
.hero-portrait { justify-self: end; min-width: 0; }
.hero-portrait img {
  width: 100%; height: auto; max-width: 300px;
  aspect-ratio: 3 / 4; object-fit: cover;
  border-radius: 16px; border: 1px solid var(--line);
  box-shadow: 0 24px 70px rgba(0,0,0,0.55); display: block;
}
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--amber); margin-bottom: 22px; }
h1 {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(40px, 8vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  overflow-wrap: break-word;
}
h1 .thin { display: block; color: var(--muted); font-weight: 500; font-size: clamp(15px,2.4vw,22px); letter-spacing: 0.18em; text-transform: uppercase; font-family: var(--mono); margin-top: 22px; }
.lede { max-width: 640px; margin-top: 26px; color: #d6d2c9; font-size: 20px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.chip { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; color: var(--ink); border: 1px solid var(--line); background: rgba(255,255,255,0.02); padding: 7px 13px; border-radius: 999px; }
.chip b { color: var(--amber); font-weight: 700; }

/* ---------- Section scaffold ---------- */
section { padding: 84px 0; border-bottom: 1px solid var(--line); }
.sec-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 40px; }
.sec-idx { font-family: var(--mono); color: var(--amber); font-size: 13px; letter-spacing: 0.1em; }
.sec-title { font-family: var(--display); font-weight: 700; font-size: clamp(26px,4vw,40px); letter-spacing: -0.01em; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4,1fr); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--panel); }
.stat { padding: 30px 24px; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat .num { font-family: var(--display); font-weight: 900; font-size: 54px; color: var(--amber); line-height: 1; }
.stat .lbl { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-top: 12px; }

/* ---------- At a Glance ---------- */
.glance { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.row { display: flex; justify-content: space-between; gap: 20px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.row .k { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); }
.row .v { color: var(--ink); text-align: right; }

/* ---------- Card grids ---------- */
.grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.grid.three { grid-template-columns: repeat(3,1fr); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px 18px; transition: border-color .25s, background .25s;
}
.card:hover { border-color: var(--amber); background: #1c2027; }
.card .ico { font-size: 22px; }
.card .t { font-family: var(--display); font-weight: 700; font-size: 16px; margin-top: 12px; letter-spacing: -0.01em; }
.card .d { font-size: 14.5px; color: var(--muted); margin-top: 6px; line-height: 1.5; }

.lead-col { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: start; }
p.body { color: #d6d2c9; }
p.body + p.body { margin-top: 16px; }
.kbd { font-family: var(--mono); font-size: 0.86em; color: var(--amber-soft); background: rgba(232,161,58,0.08); border: 1px solid rgba(232,161,58,0.25); padding: 1px 7px; border-radius: 5px; }

/* ---------- Agent table ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.agent-table { width: 100%; border-collapse: collapse; margin-top: 8px; min-width: 360px; }
.agent-table th, .agent-table td { text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.agent-table th { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--faint); }
.agent-table td.agent { font-family: var(--display); font-weight: 700; color: var(--amber); width: 130px; }
.agent-table tr:hover td { background: rgba(255,255,255,0.015); }

/* ---------- Flow diagram ---------- */
.flow { margin-top: 26px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-2); padding: 8px; }
.flow svg { width: 100%; height: auto; display: block; }

/* ---------- Domain tags ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.tag { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.04em; color: var(--ink); border: 1px solid var(--line); border-left: 2px solid var(--amber); padding: 8px 13px; border-radius: 6px; background: var(--panel); }

/* ---------- Gear & Brands ---------- */
#gear .logos { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 22px 28px; align-items: center; }
#gear .logos img { width: 100%; height: 34px; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.55; transition: opacity .25s; }
#gear .logos img:hover { opacity: 1; }

/* ---------- Values ---------- */
.values { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-top: 8px; }
.value { border-top: 2px solid var(--amber); padding-top: 14px; }
.value .t { font-family: var(--display); font-weight: 700; font-size: 17px; }
.value .d { font-size: 14px; color: var(--muted); margin-top: 4px; }

blockquote { border-left: 2px solid var(--amber); padding: 6px 0 6px 22px; margin-top: 26px; color: var(--amber-soft); font-size: 21px; font-style: italic; }

/* ---------- Contact: Comms Check panel ---------- */
.comms { border: 1px solid var(--line); border-radius: 14px; background: var(--panel); overflow: hidden; }
.comms-head { display: flex; align-items: center; gap: 12px; padding: 18px 22px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.led { width: 10px; height: 10px; border-radius: 50%; background: var(--amber); flex-shrink: 0; box-shadow: 0 0 0 0 rgba(232,161,58,0.5); animation: led-pulse 2s infinite; }
@keyframes led-pulse {
  0% { box-shadow: 0 0 0 0 rgba(232,161,58,0.5); }
  70% { box-shadow: 0 0 0 10px rgba(232,161,58,0); }
  100% { box-shadow: 0 0 0 0 rgba(232,161,58,0); }
}
.comms-status { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink); }
.comms-status b { color: var(--amber); font-weight: 700; }
.channels { display: flex; flex-direction: column; }
.channel { display: flex; align-items: center; gap: 16px; padding: 14px 22px; border-bottom: 1px solid var(--line); }
.channel:last-child { border-bottom: none; }
.channel .ch { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; color: var(--faint); width: 96px; flex-shrink: 0; }
.channel .val { font-family: var(--mono); font-size: 14px; color: var(--ink); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.channel a.val { text-decoration: none; }
.channel a.val:hover, .channel a.val:focus-visible { color: var(--amber); }
.copy-btn { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 6px; padding: 0 14px; min-height: 44px; cursor: pointer; transition: border-color .2s, color .2s; flex-shrink: 0; }
.copy-btn:hover, .copy-btn:focus-visible { color: var(--amber); border-color: var(--amber); }
.copy-btn[data-copied="true"] { color: var(--signal); border-color: var(--signal); }
.comms-cta { padding: 20px 22px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.btn-primary, .btn-secondary { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; border-radius: 8px; padding: 0 22px; min-height: 48px; display: inline-flex; align-items: center; text-decoration: none; font-weight: 700; }
.btn-primary { color: #0d0e11; background: var(--amber); border: 1px solid var(--amber); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--amber-soft); border-color: var(--amber-soft); }
.btn-secondary { color: var(--ink); background: transparent; border: 1px solid var(--line); font-weight: 500; }
.btn-secondary:hover, .btn-secondary:focus-visible { color: var(--amber); border-color: var(--amber); }
@media (max-width: 480px) {
  .channel { flex-wrap: wrap; gap: 8px 12px; }
  .channel .val { flex-basis: 100%; order: 3; white-space: normal; }
}

/* ---------- Footer ---------- */
footer { padding: 70px 0 90px; }
.foot-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 30px; align-items: flex-end; }
.footer-brand { font-family: var(--mono); font-weight: 700; letter-spacing: 0.04em; font-size: 20px; }
.footer-brand b { color: var(--amber); }
.foot-links { display: flex; gap: 26px; font-family: var(--mono); font-size: 13px; }
.foot-links a { color: var(--muted); text-decoration: none; border-bottom: 1px solid transparent; transition: color .2s, border-color .2s; display: inline-flex; align-items: center; min-height: 44px; }
.foot-links a:hover, .foot-links a:focus-visible { color: var(--amber); border-color: var(--amber); }
.sig { font-family: var(--mono); font-size: 11px; color: var(--faint); letter-spacing: 0.1em; text-transform: uppercase; }
.footer-note { margin-top: 10px; }

/* ---------- Reveal (progressive enhancement, GSAP-driven) ---------- */
/* Visible by default. Hidden only once JS+GSAP take over (html.js); GSAP animates them in. */
.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(24px); }
.js .hero .anim-in,
.js .hero-portrait img { opacity: 0; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .grid, .grid.three { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 820px) {
  .hero .wrap.hero-grid { grid-template-columns: 1fr; }
  .hero-portrait { justify-self: start; margin-top: 6px; }
  .hero-portrait img { max-width: 220px; }
  .lead-col { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 720px) {
  .wrap { padding: 0 18px; }
  .navlinks { gap: 14px; font-size: 11px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .stats { grid-template-columns: repeat(2,1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
  .glance { grid-template-columns: 1fr; }
  .values { grid-template-columns: repeat(2,1fr); }
  #gear .logos { grid-template-columns: repeat(3, minmax(0,1fr)); gap: 20px; }
}
@media (max-width: 480px) {
  .grid, .grid.three { grid-template-columns: 1fr; }
  .values { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .js .reveal,
  .js .hero .anim-in, .js .hero-portrait img { opacity: 1; transform: none; transition: none; }
  .led { animation: none; }
  html { scroll-behavior: auto; }
}