/* ============================================================
   GEN ATM NGK 2.0 — Global chrome
   Reset · type scale · nav · footer · buttons · panels · grid
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, canvas { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--live); color: #05210F; }

:focus-visible {
  outline: 2px solid var(--live);
  outline-offset: 3px;
}

/* ---------- Type ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.5rem, 6.2vw, 4.6rem); }
h2 { font-size: clamp(1.85rem, 3.9vw, 2.95rem); }
h3 { font-size: clamp(1.18rem, 1.9vw, 1.5rem); }
p  { margin: 0 0 1.1em; color: var(--ink-dim); }
p.lead { font-size: clamp(1.02rem, 1.5vw, 1.22rem); color: var(--ink); max-width: 62ch; }

.mono { font-family: var(--font-mono); }

/* Micro-label: the console's voice */
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-faint);
}
.tag::before {
  content: ""; width: 16px; height: 1px; background: var(--live); opacity: 0.8;
}
.tag--warn::before { background: var(--warn); }
.tag--link::before { background: var(--link); }

.accent { color: var(--live); }
.warn   { color: var(--warn); }
.fault  { color: var(--fault); }
.cool   { color: var(--link); }

/* ---------- Layout ---------- */
.wrap { width: min(100% - (var(--pad-x) * 2), var(--w-max)); margin-inline: auto; }
.wrap--wide { width: min(100% - (var(--pad-x) * 2), var(--w-wide)); }
section { padding-block: var(--sec-y); position: relative; }
.grid { display: grid; gap: 20px; }
@media (min-width: 720px)  { .g-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px)  { .g-3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1040px) { .g-4 { grid-template-columns: repeat(4, 1fr); } }

.sec-head { max-width: 72ch; margin-bottom: 42px; }
.sec-head h2 { margin-top: 10px; }

/* Blueprint backdrop — the estate is on a grid */
.gridlines::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 78%);
  opacity: 0.6;
}
.gridlines > * { position: relative; z-index: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r);
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--dur-1) var(--ease-out),
              background var(--dur-1) var(--ease-out),
              transform var(--dur-1) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out);
}
.btn:hover { transform: translateY(-2px); border-color: var(--live); box-shadow: var(--glow-live); }
.btn--solid {
  background: var(--live); color: #04210F; border-color: var(--live); font-weight: 600;
}
.btn--solid:hover { background: #4CEBA0; }
.btn__dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ---------- Panels ---------- */
.panel {
  background: linear-gradient(160deg, var(--panel), var(--bg-raise));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 26px;
  position: relative;
  transition: border-color var(--dur-2) var(--ease-out),
              transform var(--dur-2) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out);
}
.panel:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow); }
.panel h3 { margin-bottom: 10px; }
.panel p:last-child { margin-bottom: 0; }

/* corner ticks — instrument detail */
.panel--tick::before, .panel--tick::after {
  content: ""; position: absolute; width: 10px; height: 10px; opacity: 0.6;
}
.panel--tick::before { top: -1px; left: -1px; border-top: 1px solid var(--live); border-left: 1px solid var(--live); }
.panel--tick::after  { bottom: -1px; right: -1px; border-bottom: 1px solid var(--live); border-right: 1px solid var(--live); }

.kv {
  display: flex; justify-content: space-between; gap: 14px;
  padding: 11px 0; border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.kv:last-child { border-bottom: 0; }
.kv dt { color: var(--ink-faint); font-family: var(--font-mono); font-size: 12px;
         letter-spacing: 0.08em; text-transform: uppercase; margin: 0; }
.kv dd { margin: 0; color: var(--ink); text-align: right; }

/* ---------- Status pill ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 4px 10px; border-radius: 2px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-dim);
}
.pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--live);
          box-shadow: 0 0 8px var(--live); display: block; }
.pill--warn i  { background: var(--warn);  box-shadow: 0 0 8px var(--warn); }
.pill--fault i { background: var(--fault); box-shadow: 0 0 8px var(--fault); }
.pill--link i  { background: var(--link);  box-shadow: 0 0 8px var(--link); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(7, 11, 15, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__in {
  width: min(100% - (var(--pad-x) * 2), var(--w-wide));
  margin-inline: auto;
  display: flex; align-items: center; gap: 22px;
  height: 66px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand__mark { width: 26px; height: 26px; }
.brand__txt {
  font-family: var(--font-display); font-weight: 700; font-size: 15px;
  letter-spacing: 0.06em; text-transform: uppercase;
}
.brand__txt span { color: var(--live); }
.brand__ver {
  font-family: var(--font-mono); font-size: 9px; color: var(--ink-faint);
  letter-spacing: 0.14em; border: 1px solid var(--line-strong);
  padding: 2px 5px; border-radius: 2px;
}

.nav__links { display: flex; gap: 4px; margin-left: 8px; }
.nav__links a {
  padding: 8px 12px; border-radius: var(--r);
  font-size: 13px; color: var(--ink-dim);
  transition: color var(--dur-1), background var(--dur-1);
}
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--ink); background: var(--panel-2); }

/* live HUD */
.hud { margin-left: auto; display: flex; gap: 16px; align-items: center; }
.hud__cell { text-align: right; line-height: 1.2; }
.hud__k { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em;
          color: var(--ink-faint); text-transform: uppercase; display: block; }
.hud__v { font-family: var(--font-mono); font-size: 12px; color: var(--live);
          font-variant-numeric: tabular-nums; }
.nav__cta { margin-left: 4px; }
.nav__burger {
  display: none; margin-left: auto; width: 40px; height: 34px;
  background: transparent; border: 1px solid var(--line-strong); border-radius: var(--r);
  color: var(--ink); cursor: pointer; font-size: 15px;
}

@media (max-width: 1080px) { .hud__cell:nth-child(n+3) { display: none; } }
@media (max-width: 940px) {
  .nav__burger { display: block; }
  .hud { display: none; }
  .nav__cta { display: none; }
  .nav__links {
    position: absolute; top: 66px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px var(--pad-x) 18px;
    background: var(--bg-raise); border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav.open .nav__links { display: flex; }
  .nav__links a { padding: 12px 0; border-bottom: 1px solid var(--line); border-radius: 0; }
}

/* ---------- Footer ---------- */
.foot { border-top: 1px solid var(--line); background: var(--bg-raise); padding-block: 56px 28px; }
.foot__grid { display: grid; gap: 34px; }
@media (min-width: 860px) { .foot__grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; } }
.foot h4 {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ink-faint); margin-bottom: 14px;
}
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.foot a { font-size: 14px; color: var(--ink-dim); transition: color var(--dur-1); }
.foot a:hover { color: var(--live); }
.foot__bar {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint);
}

/* ---------- Reveal ---------- */
.rv { opacity: 0; transform: translateY(22px); transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out); }
.rv.in { opacity: 1; transform: none; }
.rv-l { opacity: 0; transform: translateX(-26px); transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out); }
.rv-l.in { opacity: 1; transform: none; }
.rv-r { opacity: 0; transform: translateX(26px); transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out); }
.rv-r.in { opacity: 1; transform: none; }
[class*="rv"][data-d="1"] { transition-delay: 90ms; }
[class*="rv"][data-d="2"] { transition-delay: 180ms; }
[class*="rv"][data-d="3"] { transition-delay: 270ms; }
[class*="rv"][data-d="4"] { transition-delay: 360ms; }
[class*="rv"][data-d="5"] { transition-delay: 450ms; }

/* On small screens the horizontal reveal offset can push past the viewport —
   fall back to a vertical reveal. */
@media (max-width: 760px) {
  .rv-l, .rv-r { transform: translateY(22px); }
  .rv-l.in, .rv-r.in { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .rv, .rv-l, .rv-r { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; }
}

/* ---------- Scroll progress ---------- */
.progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--live), var(--link));
  z-index: 80; transition: width 80ms linear;
}