/* Layout: broadcast run-sheet. Wide hero with a live-looking QC report, then banded sections; SMPTE bars are the one recurring flourish. */
:root {
  --paper: #f5f6f8;
  --sheet: #ffffff;
  --ink: #141a25;
  --muted: #586174;
  --rule: #dce0e8;
  --signal: #1f4fd1;
  --signal-ink: #ffffff;
  --signal-soft: #e5ebfb;
  --deep: #121826;
  --deep-ink: #e9ecf3;
  --deep-muted: #a3acc0;
  --deep-rule: #283146;
  --ok: #17804a; --ok-soft: #e2f3ea;
  --warn: #8f5500; --warn-soft: #fbefd8;
  --bad: #b3261e; --bad-soft: #fbe4e2;
  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "IBM Plex Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --gutter-l: max(20px, env(safe-area-inset-left, 0px));
  --gutter-r: max(20px, env(safe-area-inset-right, 0px));
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f131b; --sheet: #171d29; --ink: #e8ebf1; --muted: #9aa3b5; --rule: #283044;
    --signal: #7c9dff; --signal-ink: #0b1020; --signal-soft: #1b2643;
    --deep: #0a0d14; --deep-ink: #e9ecf3; --deep-muted: #9aa3b5; --deep-rule: #222a3b;
    --ok: #5fd197; --ok-soft: #13301f; --warn: #f0b45a; --warn-soft: #33270f; --bad: #ff8a80; --bad-soft: #3a1714;
    color-scheme: dark;
  }
}

* { box-sizing: border-box }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100% }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--f-body) }
a { color: var(--signal) }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 3px }
h1, h2, h3 { font-family: var(--f-display); margin: 0; text-wrap: balance; letter-spacing: -0.01em }
h1 { font-size: clamp(2.6rem, 6.4vw, 4.6rem); font-weight: 800; font-stretch: 78%; line-height: .98 }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 750; font-stretch: 82%; line-height: 1.05 }
h3 { font-size: 1.12rem; font-weight: 700; line-height: 1.25 }
p { margin: 0 }
.mono { font-family: var(--f-mono) }
.eyebrow { font: 500 12.5px/1 var(--f-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--signal) }

.inner { max-width: 1120px; margin: 0 auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r) }
section { padding-block: clamp(56px, 9vw, 104px) }
.band { background: var(--sheet); border-block: 1px solid var(--rule) }

.bars { display: grid; grid-template-columns: repeat(7, 1fr); height: 6px }
.bars span:nth-child(1){background:#c0c0c0} .bars span:nth-child(2){background:#c0c000} .bars span:nth-child(3){background:#00c0c0} .bars span:nth-child(4){background:#00c000} .bars span:nth-child(5){background:#c000c0} .bars span:nth-child(6){background:#c00000} .bars span:nth-child(7){background:#0000c0}

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--rule); padding-top: env(safe-area-inset-top, 0px) }
.top .inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 600 15px/1 var(--f-mono); letter-spacing: .06em }
.brand b { font-family: var(--f-display); font-weight: 800; font-stretch: 80%; font-size: 19px; letter-spacing: 0 }
.mark { width: 22px; height: 16px; border-radius: 2px; background: linear-gradient(90deg, #c0c0c0 0 14%, #c0c000 14% 28%, #00c0c0 28% 43%, #00c000 43% 57%, #c000c0 57% 71%, #c00000 71% 86%, #0000c0 86%) }
nav { display: flex; align-items: center; gap: 22px; font-size: 15px }
nav a { color: var(--muted); text-decoration: none }
nav a:hover { color: var(--ink) }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 15.5px/1 var(--f-body); padding: 14px 20px; border-radius: 6px; background: var(--signal); color: var(--signal-ink); text-decoration: none; border: 1px solid var(--signal); cursor: pointer; transition: transform .12s ease, filter .12s ease }
.btn:hover { filter: brightness(1.08) }
.btn:active { transform: translateY(1px) }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--rule) }
.btn.ghost:hover { border-color: var(--muted) }
nav .btn.small { padding: 10px 14px; font-size: 14px; color: var(--signal-ink) }

/* Hero */
.hero { padding-block: clamp(48px, 8vw, 96px) }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 64px); align-items: center }
.hero-copy { display: grid; gap: 22px }
.lede { font-size: 1.16rem; color: var(--muted); max-width: 54ch }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; padding-top: 6px }

.report { margin: 0; background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; box-shadow: 0 1px 0 var(--rule), 0 24px 48px -28px rgba(20, 26, 37, .35); overflow: hidden }
.report-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--rule) }
.file { display: block; font: 600 14.5px/1.3 var(--f-mono); word-break: break-all }
.report .sub { display: block; font-size: 12px; color: var(--muted); margin-top: 4px }
.verdict { font: 600 12px/1 var(--f-mono); letter-spacing: .06em; text-transform: uppercase; padding: 7px 10px; border-radius: 4px; white-space: nowrap }
.verdict.review { background: var(--warn-soft); color: var(--warn) }
.findings { list-style: none; margin: 0; padding: 0 }
.findings li { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto; gap: 12px; align-items: baseline; padding: 11px 18px; border-bottom: 1px solid var(--rule); font-size: 14.5px }
.findings .tc { font: 500 12.5px/1 var(--f-mono); color: var(--muted); font-variant-numeric: tabular-nums }
.findings .what .mono { font-size: 13px }
.st { font: 600 11.5px/1 var(--f-mono); letter-spacing: .05em; text-transform: uppercase; padding: 5px 8px; border-radius: 99px }
.st.pass { background: var(--ok-soft); color: var(--ok) }
.st.review { background: var(--warn-soft); color: var(--warn) }
.st.fail { background: var(--bad-soft); color: var(--bad) }
.report figcaption { padding: 10px 18px; font-size: 12px; color: var(--muted) }

/* Section heads */
.sec-head { display: grid; gap: 14px; max-width: 680px; margin-bottom: clamp(32px, 5vw, 48px) }
.sec-head p:not(.eyebrow) { color: var(--muted); font-size: 1.05rem }

/* Checks */
.checks { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--rule) }
.checks article { display: grid; gap: 8px; align-content: start; padding: 24px 22px 28px 0; border-bottom: 1px solid var(--rule) }
.checks article + article { padding-left: 0 }
.checks p { color: var(--muted); font-size: 15px }
.checks article:not(:nth-child(4n)) { border-right: 1px solid var(--rule) }
.checks article:not(:nth-child(4n+1)) { padding-left: 22px }

/* Steps: an actual sequence, so it's numbered */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px }
.steps li { display: grid; gap: 14px; align-content: start; border-top: 2px solid var(--ink); padding-top: 18px }
.steps .n { font-size: 13px; color: var(--signal); letter-spacing: .1em }
.steps div { display: grid; gap: 8px }
.steps p { color: var(--muted); font-size: 15px }
.steps b { color: var(--ink); font-weight: 600 }

/* Security band */
.band.dark { background: var(--deep); color: var(--deep-ink); border-color: var(--deep-rule) }
.band.dark .sec-head p:not(.eyebrow) { color: var(--deep-muted) }
.band.dark .eyebrow { color: #8fb0ff }
.deploy { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px }
.deploy article { display: grid; gap: 10px; align-content: start; padding: 24px; border: 1px solid var(--deep-rule); border-radius: 8px }
.deploy .tag { font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--deep-muted) }
.deploy p:not(.tag) { color: var(--deep-muted); font-size: 15.5px }
.controls { list-style: none; margin: 32px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 40px }
.controls li { padding-left: 18px; border-left: 2px solid #3d63d9; color: var(--deep-muted); font-size: 15.5px }
.controls b { color: var(--deep-ink); font-weight: 600 }

/* Who */
.who { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px }
.who div { display: grid; gap: 8px; align-content: start }
.who p { color: var(--muted); font-size: 15.5px }

/* Pilot */
.pilot { background: var(--signal-soft); border-top: 1px solid var(--rule) }
.pilot-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center }
.pilot-grid > div:first-child { display: grid; gap: 16px }
.pilot-grid > div:first-child p:not(.eyebrow) { color: var(--muted); max-width: 56ch }
.contact { display: grid; gap: 12px; justify-items: start; background: var(--sheet); border: 1px solid var(--rule); border-radius: 10px; padding: 26px }
.contact .label { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted) }
.addr { font: 700 clamp(1.3rem, 3vw, 1.7rem)/1.2 var(--f-display); font-stretch: 85%; color: var(--ink); text-decoration: none; word-break: break-all; user-select: all }
.addr:hover { color: var(--signal) }
.copied { font-size: 14px; color: var(--ok); min-height: 1.4em }

.foot { border-top: 1px solid var(--rule); padding-block: 24px calc(24px + env(safe-area-inset-bottom, 0px)) }
.foot .inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; font: 400 13px/1.4 var(--f-mono); color: var(--muted) }

/* NVIDIA */
.nv-line { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); padding-top: 4px }
.nv-line b { color: var(--ink); font-weight: 600 }
.nv-dot { width: 10px; height: 10px; border-radius: 2px; background: #76b900; flex: none }
.band.nv { border-top: 0 }
.nv-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center }
.nv-grid .sec-head { margin-bottom: 0 }
.nv-facts { list-style: none; margin: 0; padding: 0; border-top: 3px solid #76b900 }
.nv-facts li { display: grid; gap: 4px; padding: 16px 0; border-bottom: 1px solid var(--rule) }
.nv-facts .k { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted) }
.nv-facts .v { font: 700 1.2rem/1.25 var(--f-display); font-stretch: 85% }
.foot .tm { flex-basis: 100%; margin: 0; font-size: 11.5px }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .pilot-grid, .nv-grid { grid-template-columns: 1fr }
  .checks { grid-template-columns: repeat(2, minmax(0, 1fr)) }
  .checks article:not(:nth-child(4n)) { border-right: 0 }
  .checks article:not(:nth-child(4n+1)) { padding-left: 0 }
  .checks article:nth-child(odd) { border-right: 1px solid var(--rule); padding-right: 22px }
  .checks article:nth-child(even) { padding-left: 22px }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)) }
}
@media (max-width: 720px) {
  nav a:not(.btn) { display: none }
  .deploy, .controls, .who { grid-template-columns: 1fr }
}
@media (max-width: 560px) {
  .checks, .steps { grid-template-columns: 1fr }
  .checks article:nth-child(odd) { border-right: 0; padding-right: 0 }
  .checks article:nth-child(even) { padding-left: 0 }
  .findings li { grid-template-columns: minmax(0, 1fr) auto; row-gap: 4px }
  .findings .tc { grid-column: 1 / -1 }
  .findings .tc:empty, .findings .tc.none { display: none }
  .report-head { flex-direction: column-reverse; align-items: flex-start }
  .file { word-break: normal; overflow-wrap: anywhere }
  .brand { font-size: 13px } .brand b { font-size: 17px }
}