/* ============================================================
   GECKORP / VISUAL SYSTEM GC-VIS-004
   Three colours. The fourth colour is disciplinary.
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --acid: #d6ff00; --ink: #0b0b0b; --paper: #f4f1e8; --alert: #ff2e00;
  --display: 'Archivo Black', sans-serif;
  --body: 'Space Grotesk', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --border: 3px solid var(--ink);
  --shadow: 8px 8px 0 var(--ink);
}
html { scroll-behavior: smooth; }
body { background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.55; overflow-x: hidden; }
::selection { background: var(--ink); color: var(--acid); }
a { color: inherit; }
svg { display: block; }

nav { position: sticky; top: 0; z-index: 100; background: var(--paper); border-bottom: var(--border);
  display: flex; align-items: center; justify-content: space-between; padding: 0 28px; height: 64px; gap: 16px; }
.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo { width: 26px; height: 26px; }
.nav-name { font-family: var(--display); font-size: 19px; letter-spacing: .02em; }
.nav-links { display: flex; gap: 22px; }
.nav-link { font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; text-decoration: none; }
.nav-link:hover { background: var(--acid); }

.kicker, .card-num, .fact-k { font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.nav-term { font-family: var(--mono); font-weight: 700; font-size: 15px; width: 32px; height: 32px; border: 2px solid var(--ink); background: var(--acid); cursor: pointer; box-shadow: 3px 3px 0 var(--ink); }
.nav-term:hover { transform: translate(1px,1px); box-shadow: 2px 2px 0 var(--ink); }

.hero { display: grid; grid-template-columns: 1.35fr 1fr; gap: 48px; align-items: center; background: var(--acid); border-bottom: var(--border);
  padding: 88px 28px 96px; background-image: radial-gradient(rgba(11,11,11,.13) 1.2px, transparent 1.3px); background-size: 14px 14px; }
.hero-title { font-family: var(--display); white-space: nowrap; font-size: clamp(48px, 9.2vw, 150px); line-height: .9; margin: 22px 0 28px; letter-spacing: -.01em; }
.hero-lead { max-width: 560px; font-size: clamp(18px, 2vw, 22px); font-weight: 500; background: var(--acid); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 36px; }
.hero-card { position: relative; background: var(--ink); border: var(--border); box-shadow: 12px 12px 0 var(--ink); padding: 22px 22px 34px; max-width: 460px; justify-self: end; width: 100%; }
.hero-card svg { width: 78%; margin: 18px auto 0; }
.hero-card-top { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; font-weight: 700; letter-spacing: .18em; color: var(--acid); border-bottom: 2px solid var(--acid); padding-bottom: 10px; }
.hero-stamp { position: absolute; left: -18px; bottom: 26px; background: var(--paper); color: var(--alert); border: 3px solid var(--alert); font-family: var(--mono); font-weight: 700; font-size: 13px; letter-spacing: .16em; padding: 6px 12px; transform: rotate(-6deg); }

.btn { display: inline-block; font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; cursor: pointer;
  text-decoration: none; border: var(--border); background: var(--paper); color: var(--ink); padding: 14px 20px; box-shadow: 5px 5px 0 var(--ink); transition: transform .12s, box-shadow .12s; }
.btn:hover { transform: translate(2px, 2px); box-shadow: 3px 3px 0 var(--ink); }
.btn-ink { background: var(--ink); color: var(--acid); }
.btn-acid { background: var(--acid); border-color: var(--acid); box-shadow: 5px 5px 0 var(--paper); }
.btn-acid:hover { box-shadow: 3px 3px 0 var(--paper); }
.btn-ghost { background: transparent; color: var(--paper); border-color: var(--paper); box-shadow: 5px 5px 0 var(--paper); }
.btn-ghost:hover { box-shadow: 3px 3px 0 var(--paper); }

.facts { display: grid; grid-template-columns: repeat(3, 1fr); border-bottom: var(--border); background: var(--paper); }
.fact { padding: 26px 28px; display: flex; flex-direction: column; gap: 6px; }
.fact + .fact { border-left: var(--border); }
.fact-k { opacity: .6; }
.fact-v { font-family: var(--display); font-size: 18px; text-transform: uppercase; line-height: 1.15; }

.section { padding: 96px 28px; border-bottom: var(--border); }
.section-head { margin-bottom: 44px; }
.section-head h2 { font-family: var(--display); font-size: clamp(36px, 5.4vw, 64px); text-transform: uppercase; line-height: .95; margin-top: 12px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card { border: var(--border); background: #fff; box-shadow: var(--shadow); padding: 30px 28px 32px; transition: transform .15s, box-shadow .15s; }
.card:hover { transform: translate(-3px, -3px); box-shadow: 11px 11px 0 var(--ink); }
.card-num { display: inline-block; background: var(--ink); color: var(--acid); padding: 4px 9px; }
.card h3 { font-family: var(--display); font-size: 24px; text-transform: uppercase; line-height: 1.05; margin: 18px 0 10px; }
.card p { font-size: 16px; margin-bottom: 16px; }
.card ul { list-style: none; border-top: 2px solid var(--ink); }
.card li { font-family: var(--mono); font-size: 13px; padding: 10px 0; border-bottom: 1px solid rgba(11,11,11,.18); }
.card li::before { content: "/ "; font-weight: 700; }

.section-acid { background: var(--acid); }
.principles { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border: var(--border); background: var(--paper); box-shadow: var(--shadow); }
.principles li { display: flex; gap: 20px; padding: 28px; font-size: 18px; align-items: flex-start; }
.principles li:nth-child(odd) { border-right: var(--border); }
.principles li:nth-child(-n+2) { border-bottom: var(--border); }
.p-num { font-family: var(--display); font-size: 34px; line-height: 1; min-width: 56px; }
.principles strong { font-family: var(--display); font-weight: 400; text-transform: uppercase; display: block; margin-bottom: 4px; font-size: 20px; }

.section-ink { background: var(--ink); color: var(--paper); }
.section-ink .kicker { color: var(--acid); }
.contact-card { border: 3px solid var(--acid); padding: 40px 32px; }
.contact-mail { font-family: var(--display); font-size: clamp(28px, 6.4vw, 84px); line-height: 1; color: var(--acid); text-decoration: none; word-break: break-all; }
.contact-mail:hover { text-decoration: underline; text-decoration-thickness: 4px; }
.contact-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 32px; }
.copy-note { font-family: var(--mono); font-size: 12px; color: var(--acid); margin-top: 16px; min-height: 18px; letter-spacing: .08em; text-transform: uppercase; }

footer { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; padding: 44px 28px 56px; }
.legal { font-family: var(--mono); font-size: 12.5px; line-height: 1.85; border: 2px solid var(--ink); padding: 18px 20px; background: #fff; }
.footer-side { font-family: var(--mono); font-size: 12px; text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.footer-mark { width: 54px; height: 54px; margin-bottom: 8px; }
.hint { opacity: .5; }
kbd { font-family: var(--mono); border: 2px solid var(--ink); padding: 0 5px; }

#term { position: fixed; inset: 0; z-index: 500; background: rgba(11,11,11,.97); display: none; flex-direction: column; padding: 40px;
  font-family: var(--mono); font-size: 14px; line-height: 1.85; color: var(--paper); }
#term.open { display: flex; }
#term-head { color: var(--acid); font-size: 11px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; margin-bottom: 18px;
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
#term-out { flex: 1; overflow-y: auto; white-space: pre-wrap; }
#term-out .ok { color: var(--acid); } #term-out .warn { color: var(--alert); } #term-out .wht { color: #fff; } #term-out .dim { color: #777; }
#term-line { display: flex; align-items: center; gap: 10px; border-top: 2px solid var(--acid); padding-top: 14px; margin-top: 12px; }
#term-line .ps { color: var(--acid); font-weight: 700; }
#term-in { flex: 1; min-width: 0; background: none; border: none; outline: none; color: #fff; font-family: var(--mono); font-size: 14px; }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding-top: 64px; }
  .hero-title { font-size: 15vw; }
  .hero-card { justify-self: start; max-width: 360px; }
  .cards { grid-template-columns: 1fr; }
  .principles { grid-template-columns: 1fr; }
  .principles li:nth-child(odd) { border-right: none; }
  .principles li:not(:last-child) { border-bottom: var(--border); }
}
@media (max-width: 640px) {
  nav { padding: 0 16px; } .nav-links { gap: 12px; } .nav-link[href="#principles"], .nav-link[href="#services"] { display: none; }
  .hero, .section { padding-left: 16px; padding-right: 16px; }
  .facts { grid-template-columns: 1fr; } .fact + .fact { border-left: none; border-top: var(--border); } .fact { padding: 20px 16px; }
  .contact-card { padding: 28px 18px; }
  footer { padding: 32px 16px 44px; } .footer-side { align-items: flex-start; text-align: left; }
  #term { padding: 20px 16px; }
}

/* 404 */
.err-wrap { padding: 96px 28px; max-width: 760px; }
.err-code { font-family: var(--display); font-size: clamp(110px, 24vw, 260px); line-height: .85; }
.err-stamp { display: inline-block; border: 3px solid var(--alert); color: var(--alert); font-family: var(--mono); font-weight: 700; letter-spacing: .14em; text-transform: uppercase; padding: 4px 10px; transform: rotate(-3deg); margin: 18px 0 24px; }
.err-body { margin-bottom: 32px; }
.mono-note { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; }
.footer-legal { font-family: var(--mono); font-size: 12px; }