/* =========================================================
   TOKENS
   Blueprint / technical-drawing system — cyanotype navy,
   stencil display type, IBM Plex for body + data labels.
   ========================================================= */
:root {
  --bg: #0a1e33;
  --bg-panel: #0f2843;
  --bg-panel-2: #0c2338;
  --ink: #eaf2f6;
  --ink-dim: #8fadc4;
  --ink-faint: #5a7690;
  --accent: #e0a526;
  --accent-dim: #a97c2f;
  --line: rgba(234, 242, 246, 0.14);
  --line-faint: rgba(234, 242, 246, 0.06);
  --font-display: "Stardos Stencil", ui-serif, serif;
  --font-body: "IBM Plex Sans", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --wrap: 1080px;
  --gap: clamp(1.5rem, 4vw, 3rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: var(--bg); }

a { color: var(--ink); }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 1.5rem; }
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: var(--bg); padding: .6rem 1rem;
  font-family: var(--font-mono); z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* Faint drafting-paper grid, fixed behind everything */
.grid-overlay {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--line-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-faint) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

header, main, footer { position: relative; z-index: 1; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin: 0 0 1rem;
  text-transform: uppercase;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; margin: 0 0 .6em; line-height: 1.05; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); letter-spacing: .01em; }
h3 { font-size: 1.15rem; letter-spacing: .01em; }
p { margin: 0 0 1em; color: var(--ink); }
strong { color: var(--ink); font-weight: 600; }
.lede { color: var(--ink-dim); font-size: 1.05rem; max-width: 62ch; }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(10, 30, 51, 0.86);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.mark { font-family: var(--font-mono); font-size: .95rem; letter-spacing: .06em; text-decoration: none; color: var(--ink); }
.mark-dot { color: var(--accent); }
.site-nav { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.site-nav a {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .06em;
  text-transform: uppercase; text-decoration: none; color: var(--ink-dim);
  padding: .3rem 0; border-bottom: 1px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.site-nav a:hover { color: var(--accent); border-color: var(--accent); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding: clamp(4rem, 10vw, 7rem) 1.5rem clamp(3rem, 8vw, 5rem);
  max-width: calc(var(--wrap) + 3rem);
}
.hero-name {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 5.2rem);
  letter-spacing: .01em;
  margin: 0 0 .3em;
}
.hero-role {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: .95rem;
  letter-spacing: .08em;
  margin: 0 0 1.4em;
}
.hero-line { color: var(--ink-dim); font-size: 1.15rem; max-width: 56ch; }
.hero-frame { position: absolute; inset: 1.25rem 1.5rem; pointer-events: none; }
.corner { position: absolute; width: 22px; height: 22px; border-color: var(--line); }
.corner.tl { top: 0; left: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.corner.tr { top: 0; right: 0; border-top: 1px solid var(--line); border-right: 1px solid var(--line); }
.corner.bl { bottom: 0; left: 0; border-bottom: 1px solid var(--line); border-left: 1px solid var(--line); }
.corner.br { bottom: 0; right: 0; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }

/* =========================================================
   SECTIONS (shared rhythm)
   ========================================================= */
.section { padding: clamp(3rem, 7vw, 5rem) 1.5rem; border-top: 1px solid var(--line-faint); }

/* About */
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--gap); align-items: start; }
.about-copy p { max-width: 62ch; }
.spec-sheet {
  margin: 0; padding: 1.4rem 1.5rem; background: var(--bg-panel);
  border: 1px solid var(--line); font-family: var(--font-mono); font-size: .85rem;
}
.spec-sheet div { display: flex; justify-content: space-between; gap: 1rem; padding: .55rem 0; border-bottom: 1px dashed var(--line-faint); }
.spec-sheet div:last-child { border-bottom: none; }
.spec-sheet dt { color: var(--ink-faint); text-transform: uppercase; letter-spacing: .05em; font-size: .72rem; }
.spec-sheet dd { margin: 0; text-align: right; color: var(--ink); }

/* Puteware pillars */
.pillar-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-top: 2rem; }
.pillar { padding: 1.5rem; border: 1px solid var(--line); background: var(--bg-panel-2); }
.pillar-tag { font-family: var(--font-mono); font-size: .68rem; color: var(--accent-dim); letter-spacing: .08em; }
.pillar p { color: var(--ink-dim); font-size: .92rem; margin-top: .6em; }

/* Cards (products / projects) */
.card-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-top: 1.5rem; }
.card { padding: 1.6rem; border: 1px solid var(--line); background: var(--bg-panel); }
.card.muted { opacity: .68; }
.card-tag { font-family: var(--font-mono); font-size: .68rem; color: var(--accent); letter-spacing: .08em; }
.card h3 { margin-top: .6em; }
.card p { color: var(--ink-dim); font-size: .93rem; }
.card-link { font-family: var(--font-mono); font-size: .82rem; color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent-dim); }
.card-link:hover { color: var(--ink); border-color: var(--ink); }

/* FAQ */
.faq-list { margin-top: 1.5rem; display: flex; flex-direction: column; gap: .6rem; }
.faq-item { border: 1px solid var(--line); background: var(--bg-panel-2); padding: 0; }
.faq-item summary {
  cursor: pointer; padding: 1rem 1.2rem; font-family: var(--font-mono);
  font-size: .92rem; color: var(--ink); list-style: none; display: flex;
  justify-content: space-between; align-items: center; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--accent); font-size: 1.1rem; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { padding: 0 1.2rem 1.1rem; color: var(--ink-dim); font-size: .93rem; max-width: 62ch; }

/* =========================================================
   TITLE BLOCK / FOOTER
   ========================================================= */
.titleblock { padding: clamp(3rem, 7vw, 5rem) 1.5rem 2.5rem; border-top: 1px solid var(--line); }
.tb-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.tb-grid > div { padding: .9rem 1.1rem; border-right: 1px solid var(--line); font-family: var(--font-mono); }
.tb-grid > div:last-child { border-right: none; }
.tb-grid dt { font-size: .66rem; color: var(--ink-faint); text-transform: uppercase; letter-spacing: .06em; margin: 0 0 .3em; }
.tb-grid dd { margin: 0; font-size: .85rem; color: var(--ink); }
.tb-links { display: flex; flex-wrap: wrap; gap: 1.6rem; margin: 1.6rem 0; }
.tb-links a { font-family: var(--font-mono); font-size: .82rem; color: var(--ink-dim); text-decoration: none; border-bottom: 1px solid transparent; }
.tb-links a:hover { color: var(--accent); border-color: var(--accent); }
.fine-print { font-family: var(--font-mono); font-size: .72rem; color: var(--ink-faint); }

/* =========================================================
   REVEAL-ON-SCROLL (progressive enhancement only —
   content is fully present without JS; see script.js)
   ========================================================= */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
  .reveal.is-visible { opacity: 1; transform: none; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 760px) {
  .header-inner { height: auto; flex-direction: column; align-items: flex-start; gap: .7rem; padding: .9rem 0; }
  .site-nav { gap: 1rem; }
  .about-grid, .pillar-row, .card-grid { grid-template-columns: 1fr; }
  .tb-grid { grid-template-columns: 1fr 1fr; }
  .tb-grid > div:nth-child(2n) { border-right: none; }
  .tb-grid > div { border-bottom: 1px solid var(--line); }
}