/* =====================================================
   Page layout — built on the tokens in theme.css.
   ===================================================== */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: dark; }
a { color: var(--color-cyan); }
::selection { background: var(--color-lime); color: var(--color-background); }
img { display: block; max-width: 100%; }

:root { --rail: 108px; --aside: 272px; }

/* ---------- Left rail ---------- */
.rail {
  position: fixed; inset: 0 auto 0 0; width: var(--rail); z-index: 10;
  display: flex; flex-direction: column;
  border-right: 1px solid var(--color-border);
  background: var(--color-background);
}
.monogram {
  font-family: var(--font-heading); font-weight: 700; font-size: 2rem;
  color: var(--color-text); text-decoration: none;
  padding: 26px 0 0 28px; letter-spacing: .02em;
}
.monogram::after { content: ""; display: block; width: 46px; height: 1px; background: var(--color-border); margin-top: 24px; }
.rail nav { margin-top: 60px; display: flex; flex-direction: column; gap: 34px; }
.rail nav a {
  position: relative; padding-left: 27px; text-decoration: none;
  font-family: var(--font-technical); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-text-muted); line-height: 1.6;
}
.rail nav a span { display: block; }
.rail nav a:hover, .rail nav a.active { color: var(--color-cyan); }
.rail nav a.active::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 3px; height: 24px; background: var(--color-cyan);
}
.rail-foot { margin-top: auto; padding: 0 0 48px 22px; font-size: .62rem; line-height: 1.8; }
.rail-foot::before { content: ""; display: block; width: 28px; height: 1px; background: var(--color-border); margin-bottom: 16px; }

/* ---------- Shell ---------- */
.shell { margin-left: var(--rail); }
.stage {
  display: grid; grid-template-columns: minmax(0, 1fr) var(--aside);
  border-bottom: 1px solid var(--color-border);
}

/* ---------- Hero ---------- */
.hero { position: relative; padding: 22px 24px 40px; min-height: 680px; overflow: hidden; }
.hero-top { display: flex; gap: 12px; align-items: center; }
.hero-top .dash { width: 26px; height: 1px; background: var(--color-text-muted); }
.hero-copy { position: relative; z-index: 2; max-width: 440px; margin-top: 40px; }
.disciplines { font-size: .64rem; color: var(--color-text-secondary); white-space: nowrap; }
.hero h1 { margin: 26px 0 0; letter-spacing: -.005em; line-height: .98; font-size: clamp(3.5rem, 5.8vw, 6rem); }
.hero h1 .line { display: block; white-space: nowrap; }
.rule { width: 44px; height: 1px; background: var(--color-text-muted); margin: 34px 0 26px; }
.lede { margin: 0; max-width: 300px; font-size: .95rem; }
.hero .button-primary { margin-top: 38px; display: inline-flex; align-items: center; gap: 22px; }
.button-primary:hover { background: var(--color-lime); }
.arrow { width: 18px; height: 12px; flex: none; }

.figure {
  position: absolute; z-index: 1; right: 0; top: 60px; width: min(60%, 720px);
}
.figure svg { width: 100%; height: auto; display: block; }
.figure .ln { fill: none; stroke: var(--color-text-secondary); stroke-width: 1.4; }
.figure .ln-hi { fill: none; stroke: var(--color-cyan); stroke-width: 1.4; }
.figure .ln-dim { fill: none; stroke: var(--color-cyan); stroke-width: .8; opacity: .55; }
.figure .ln-dash { fill: none; stroke: var(--color-cyan); stroke-width: .8; stroke-dasharray: 5 5; opacity: .5; }
.figure .fill { fill: var(--color-surface-raised); }
.figure .fill-2 { fill: var(--color-surface); }
.figure text { font-family: var(--font-technical); font-size: 9.5px; letter-spacing: .1em; fill: var(--color-text-secondary); text-transform: uppercase; }
.figure text.h { fill: var(--color-cyan); }
.figure text.n { fill: var(--color-orange); }

/* ---------- Right aside ---------- */
.aside { border-left: 1px solid var(--color-border); }
.who { padding: 22px 24px 26px 68px; position: relative; border-bottom: 1px solid var(--color-border); }
.who::before { content: ""; position: absolute; left: 34px; top: 24px; width: 1px; height: 38px; background: var(--color-text-muted); }
.who .name { font-family: var(--font-technical); font-size: 1.15rem; letter-spacing: .28em; text-transform: uppercase; color: var(--color-text); line-height: 1.3; }
.who .technical-label { letter-spacing: .16em; white-space: nowrap; }
.featured { padding: 26px 0 0 24px; }
.featured > .technical-label { display: block; color: var(--color-text-secondary); padding-bottom: 14px; border-bottom: 1px solid var(--color-border); }
.feat {
  display: grid; grid-template-columns: 130px 1fr; gap: 15px; align-items: start;
  padding: 6px 0; border-bottom: 1px solid var(--color-border);
  text-decoration: none; color: inherit;
}
.feat .thumb { height: 122px; }
.feat .meta { padding-top: 20px; font-family: var(--font-technical); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; line-height: 1.6; }
.feat .num { color: var(--color-text-muted); display: block; margin-bottom: 6px; }
.feat .title { color: var(--color-text); display: block; }
.feat .arrow { margin-top: 16px; color: var(--color-text-muted); }
.feat:hover .title, .feat:hover .arrow { color: var(--color-cyan); }

/* ---------- Image slots ---------- */
.media { position: relative; overflow: hidden; background: var(--color-surface-raised); }
.media img { width: 100%; height: 100%; object-fit: cover; }
.media.ph {
  background-color: var(--color-surface-raised);
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 16px 16px;
  display: grid; place-items: center;
}
.media.ph::after {
  content: attr(data-label); font-family: var(--font-technical); font-size: .62rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--color-text-muted);
  border: 1px dashed var(--color-border); padding: 4px 8px;
}

/* ---------- Capability cards ---------- */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; padding: 14px; }
.cap { display: flex; flex-direction: column; text-decoration: none; color: inherit; transition: border-color .15s; }
.cap:hover { border-color: var(--color-cyan); }
.cap .media { height: 184px; }
.cap .num {
  position: absolute; left: 18px; bottom: 14px; z-index: 1;
  font-family: var(--font-technical); font-size: .75rem; color: var(--color-text);
}
.cap .num::after { content: ""; display: block; width: 26px; height: 3px; background: var(--color-lime); margin-top: 12px; }
.cap .body { padding: 18px 18px 26px; display: grid; grid-template-columns: 1fr auto; gap: 0 12px; }
.cap h3 { margin: 0 0 14px; font-size: 1.9rem; font-weight: 600; }
.cap p { margin: 0; font-size: .9rem; grid-column: 1 / -1; max-width: 300px; }
.cap .arrow { color: var(--color-text-secondary); margin-top: 8px; }
.cap:hover .arrow { color: var(--color-cyan); }

/* ---------- Lower sections ---------- */
.section { padding: 64px 40px; border-bottom: 1px solid var(--color-border); }
.section-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 30px; }
.section-head .technical-label { color: var(--color-cyan); }
.section-head h2 { margin: 0; font-size: clamp(2.4rem, 4vw, 3.4rem); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step { padding: 22px; }
.step h3 { margin: 10px 0 10px; font-size: 1.7rem; font-weight: 600; }
.step p { margin: 0; font-size: .9rem; }
.about { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 40px; }
.about p { margin: 0 0 16px; font-size: 1.05rem; max-width: 620px; }
.timeline { border-left: 1px solid var(--color-border); padding-left: 22px; }
.item { position: relative; margin-bottom: 24px; }
.item::before { content: ""; position: absolute; left: -27px; top: 6px; width: 9px; height: 9px; background: var(--color-cyan); }
.item h3 { margin: 6px 0 4px; font-size: 1.4rem; font-weight: 600; }
.item p { margin: 0; font-size: .9rem; }
.skills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.tag { font-family: var(--font-technical); font-size: .74rem; letter-spacing: .06em; padding: 6px 10px; border: 1px solid var(--color-border); color: var(--color-text-secondary); background: var(--color-surface); }
.contact-line { font-family: var(--font-technical); font-size: 1rem; }
.contact-line a { margin-right: 22px; }
footer { padding: 26px 40px 40px; }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .stage { grid-template-columns: 1fr; }
  .aside { border-left: 0; border-top: 1px solid var(--color-border); display: grid; grid-template-columns: 1fr; }
  .featured { padding-right: 24px; }
  .featured .list { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 20px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .hero { min-height: 0; }
  .figure { position: relative; top: auto; right: auto; width: 100%; margin-top: 24px; }
  .caps { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  :root { --rail: 0px; }
  .rail {
    position: sticky; top: 0; width: auto; height: 56px; flex-direction: row; align-items: center;
    border-right: 0; border-bottom: 1px solid var(--color-border); padding: 0 16px;
  }
  .monogram { padding: 0; font-size: 1.5rem; }
  .monogram::after, .rail-foot { display: none; }
  .rail nav { margin: 0 0 0 auto; flex-direction: row; gap: 16px; }
  .rail nav a { padding-left: 0; font-size: .64rem; }
  .disciplines { white-space: normal; }
  .rail nav a span:first-child { display: none; }
  .rail nav a.active::before { display: none; }
  .hero, .who, .section, footer { padding-left: 16px; padding-right: 16px; }
  .who { padding-left: 32px; }
  .who::before { left: 16px; }
  .featured { padding-left: 16px; padding-right: 16px; }
  .featured .list { grid-template-columns: 1fr; }
  .feat { grid-template-columns: 110px 1fr; }
  .feat .thumb { height: 96px; }
  .caps { padding: 14px 16px; }
  .steps { grid-template-columns: 1fr; }
}