/* ==========================================================
   Summit Simulators — site styles
   ========================================================== */
:root {
  --ink: #14202b;
  --ink-2: #2b3a47;
  --muted: #5b6874;
  --paper: #f3f4f1;
  --card: #ffffff;
  --line: #dde1e4;
  --line-strong: #c6ccd2;
  --panel: #111518;
  --panel-2: #1a2026;
  --panel-line: #2a323a;
  --on-panel: #e8ecef;
  --on-panel-muted: #9aa6b1;
  --accent: #1f6fd1;
  --accent-ink: #0e4a99;
  --accent-soft: #e6effb;
  --ok: #1e7f47;
  --ok-soft: #e3f3ea;
  --warn: #9a6512;
  --warn-soft: #fbf0db;
  --dev: #5d48a8;
  --dev-soft: #eeeaf9;
  --led: #f0b429;

  --f-head: 'Barlow Condensed', 'Arial Narrow', sans-serif;
  --f-body: 'Barlow', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --wrap: 1240px;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 6px;
  --shadow: 0 1px 2px rgba(20,32,43,.06), 0 4px 16px rgba(20,32,43,.06);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent-ink); }
a:hover { color: var(--accent); }
h1, h2, h3, h4 {
  font-family: var(--f-head);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: .01em;
  margin: 0 0 .5em;
  color: var(--ink);
}
h1 { font-size: clamp(2.5rem, 6vw, 4.4rem); text-transform: uppercase; letter-spacing: .005em; }
h2 { font-size: clamp(2rem, 4vw, 2.9rem); text-transform: uppercase; }
h3 { font-size: 1.45rem; font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
p { margin: 0 0 1em; }
.mono { font-family: var(--f-mono); }
.small { font-size: .85rem; }
.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 8px 14px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(56px, 8vw, 104px) 0; }
.section--tight { padding: clamp(40px, 6vw, 72px) 0; }
.section--white { background: var(--card); }
.section--panel { background: var(--panel); color: var(--on-panel); }
.section--panel h2, .section--panel h3, .section--panel h4 { color: #fff; }
.section--panel .muted, .section--panel p { color: var(--on-panel-muted); }
.section--panel a:not(.btn) { color: #8fbaf2; }

/* Placard-style eyebrow: — LABEL — like the engraved panel legends */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-head); font-weight: 600; font-size: .95rem;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 14px;
}
.eyebrow::before, .eyebrow::after {
  content: ''; width: 18px; height: 8px;
  border-top: 1.5px solid currentColor;
}
.eyebrow::before { border-left: 1.5px solid currentColor; }
.eyebrow::after { border-right: 1.5px solid currentColor; }
.section--panel .eyebrow { color: var(--led); }

.lede { font-size: clamp(1.1rem, 1.8vw, 1.3rem); color: var(--ink-2); max-width: 46em; }
.section--panel .lede { color: var(--on-panel); }
.section-head { max-width: 760px; margin-bottom: clamp(28px, 4vw, 48px); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--f-head); font-weight: 600; font-size: 1.05rem;
  letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
  padding: 13px 24px; border-radius: var(--radius);
  border: 1.5px solid transparent; cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-ink); color: #fff; }
.btn--ghost { border-color: var(--line-strong); color: var(--ink); background: transparent; }
.btn--ghost:hover { border-color: var(--ink); color: var(--ink); }
.section--panel .btn--ghost, .hero--dark .btn--ghost { border-color: #4a5560; color: #fff; }
.section--panel .btn--ghost:hover { border-color: #fff; color: #fff; }
.btn--sm { padding: 9px 16px; font-size: .95rem; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand img { height: 46px; width: auto; }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.site-nav ul a {
  font-family: var(--f-head); font-weight: 600; font-size: 1.05rem;
  letter-spacing: .06em; text-transform: uppercase; text-decoration: none;
  color: var(--ink-2); padding: 6px 0; border-bottom: 2px solid transparent;
}
.site-nav ul a:hover { color: var(--ink); border-bottom-color: var(--line-strong); }
.site-nav ul a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--accent); }
.nav-toggle { display: none; background: none; border: 0; width: 44px; height: 44px; padding: 10px; cursor: pointer; }
.nav-toggle span:not(.sr) { display: block; height: 2px; background: var(--ink); margin: 5px 0; transition: transform .2s, opacity .2s; }

@media (max-width: 1020px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px var(--gutter) 20px;
    display: none;
  }
  .site-nav.is-open { display: flex; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav ul a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav ul a[aria-current="page"] { border-bottom-color: var(--line); color: var(--accent-ink); }
  .site-nav .btn { margin-top: 16px; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* Hero */
.hero { background: var(--card); border-bottom: 1px solid var(--line); overflow: hidden; }
.hero__grid {
  display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(24px, 4vw, 56px);
  align-items: center; padding-top: clamp(40px, 7vw, 96px); padding-bottom: clamp(40px, 6vw, 80px);
}
.hero h1 span { color: var(--accent); }
.hero__media { position: relative; }
.hero__media img { width: 100%; }
.hero__tag {
  position: absolute; left: 4%; bottom: 2%;
  background: var(--panel); color: var(--on-panel);
  font-family: var(--f-mono); font-size: .78rem; letter-spacing: .04em;
  padding: 8px 12px; border-radius: 4px;
}
.hero__tag b { color: var(--led); font-weight: 500; }
.hero__stats { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--line); }
.stat b { display: block; font-family: var(--f-head); font-size: 2rem; line-height: 1; color: var(--ink); }
.stat span { font-size: .85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-family: var(--f-head); font-weight: 500; }
@media (max-width: 860px) { .hero__grid { grid-template-columns: 1fr; } .hero__media { order: -1; } }

/* Page hero (inner pages) */
.page-hero { background: var(--card); border-bottom: 1px solid var(--line); padding: clamp(40px, 6vw, 80px) 0 clamp(32px, 5vw, 56px); }
.page-hero h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); max-width: 18ch; }
.page-hero--dark { background: var(--panel); border-bottom-color: var(--panel-line); }
.page-hero--dark h1 { color: #fff; }
.page-hero--dark .lede { color: var(--on-panel); }
.page-hero--dark .eyebrow { color: var(--led); }
.page-hero--dark .btn--ghost { border-color: #4a5560; color: #fff; }
.page-hero--dark .btn--ghost:hover { border-color: #fff; color: #fff; }
.crumbs { font-family: var(--f-mono); font-size: .8rem; color: var(--muted); margin-bottom: 18px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent-ink); }

/* Grids */
.grid { display: grid; gap: clamp(16px, 2vw, 24px); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1020px) { .grid--4 { grid-template-columns: repeat(2, 1fr); } .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.split--wide-left { grid-template-columns: 1.2fr 1fr; }
@media (max-width: 860px) { .split, .split--wide-left { grid-template-columns: 1fr; } }

/* Status badges */
.status {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-head); font-weight: 600; font-size: .78rem;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 3px 9px 3px 8px; border-radius: 3px; white-space: nowrap;
}
.status::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.status--ok { color: var(--ok); background: var(--ok-soft); }
.status--warn { color: var(--warn); background: var(--warn-soft); }
.status--dev { color: var(--dev); background: var(--dev-soft); }
.status--partner { color: var(--ink-2); background: #eceff1; }

/* Product cards */
.card {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  text-decoration: none; color: inherit; overflow: hidden;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); transform: translateY(-2px); color: inherit; }
.card__media { aspect-ratio: 2 / 1; background: #fff; display: flex; align-items: center; justify-content: center; border-bottom: 1px solid var(--line); }
.card__media img { width: 100%; height: 100%; object-fit: contain; }
.card__body { padding: 16px 18px 20px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card__meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.card__cat { font-family: var(--f-mono); font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.card__title { font-size: 1.35rem; margin: 4px 0 0; }
.card__text { font-size: .95rem; color: var(--muted); margin: 0; }
.card__batd {
  margin-top: auto; padding-top: 10px; font-family: var(--f-mono); font-size: .74rem; color: var(--accent-ink);
}
.card__batd::before { content: '\2713\00a0'; }
.card.is-hidden { display: none; }

.img-placeholder {
  width: 100%; height: 100%; min-height: 140px;
  display: flex; align-items: center; justify-content: center;
  background: repeating-linear-gradient(135deg, #f6f7f8 0 10px, #eef0f2 10px 20px);
}
.img-placeholder span { font-family: var(--f-mono); font-size: .8rem; color: var(--muted); background: #fff; padding: 4px 10px; border: 1px solid var(--line); }

/* Filter bar */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.filter {
  font-family: var(--f-head); font-weight: 600; font-size: .95rem; letter-spacing: .06em; text-transform: uppercase;
  background: var(--card); color: var(--ink-2);
  border: 1px solid var(--line); border-radius: 100px; padding: 7px 16px; cursor: pointer;
}
.filter:hover { border-color: var(--line-strong); }
.filter[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.filter .count { font-family: var(--f-mono); font-weight: 400; font-size: .75rem; opacity: .7; margin-left: 4px; }
.catalog-group + .catalog-group { margin-top: 56px; }
.catalog-group h2 { font-size: 1.6rem; display: flex; align-items: baseline; gap: 12px; border-bottom: 1px solid var(--line); padding-bottom: 10px; margin-bottom: 20px; }
.catalog-group h2 small { font-family: var(--f-mono); font-size: .8rem; font-weight: 400; color: var(--muted); letter-spacing: 0; text-transform: none; }

/* Module detail */
.product { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: start; }
@media (max-width: 860px) { .product { grid-template-columns: 1fr; } .product__media { position: static; } }
.product__media { position: sticky; top: 92px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.product__media .main img, .product__media .main .img-placeholder { aspect-ratio: 2/1; width: 100%; object-fit: contain; }
.product__thumbs { display: flex; gap: 8px; margin-top: 8px; }
.product__thumbs button { width: 96px; padding: 4px; border: 1px solid var(--line); background: #fff; border-radius: 4px; cursor: pointer; }
.product__thumbs button[aria-current="true"] { border-color: var(--accent); }
.product h1 { font-size: clamp(2rem, 4vw, 3rem); text-transform: none; max-width: none; }
.product__meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px; }
.product__meta .mono { font-size: .78rem; color: var(--muted); }
.spec-list { list-style: none; padding: 0; margin: 0 0 24px; border-top: 1px solid var(--line); }
.spec-list li { display: flex; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .98rem; }
.spec-list li::before { content: ''; flex: 0 0 8px; height: 8px; margin-top: 9px; border-radius: 50%; background: var(--accent); }
.batd-box { background: var(--accent-soft); border: 1px solid #c9dbf5; border-radius: var(--radius); padding: 16px 18px; margin: 0 0 24px; }
.batd-box h4 { color: var(--accent-ink); margin-bottom: 8px; font-size: .95rem; }
.batd-box ul { margin: 0; padding: 0; list-style: none; }
.batd-box li { font-family: var(--f-mono); font-size: .82rem; padding: 3px 0; color: var(--ink-2); }
.batd-box li::before { content: '\2713\00a0\00a0'; color: var(--ok); }
.tech-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.tech-table th, .tech-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tech-table th { font-family: var(--f-head); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); width: 38%; font-size: .9rem; }
.tech-table td { font-family: var(--f-mono); font-size: .86rem; }

/* Feature tiles */
.tile { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.tile h3 { margin-bottom: 8px; }
.tile p { color: var(--muted); margin: 0; }
.tile__num { font-family: var(--f-mono); font-size: .8rem; color: var(--accent-ink); display: block; margin-bottom: 14px; }
.section--panel .tile { background: var(--panel-2); border-color: var(--panel-line); }
.section--panel .tile p { color: var(--on-panel-muted); }
.section--panel .tile__num { color: var(--led); }

.pillar { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: inherit; transition: box-shadow .15s, border-color .15s; }
.pillar:hover { box-shadow: var(--shadow); border-color: var(--line-strong); color: inherit; }
.pillar__media { background: #fff; aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; border-bottom: 1px solid var(--line); overflow: hidden; }
.pillar__media img { width: 100%; height: 100%; object-fit: contain; }
.pillar__media--dark { background: var(--panel); }
.pillar__body { padding: 22px 24px 26px; }
.pillar__body p { color: var(--muted); margin-bottom: 14px; }
.link-arrow { font-family: var(--f-head); font-weight: 600; letter-spacing: .08em; text-transform: uppercase; font-size: .95rem; color: var(--accent-ink); text-decoration: none; }
.link-arrow::after { content: ' \2192'; }

/* Requirement checklist */
.req-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 32px; }
@media (max-width: 720px) { .req-list { grid-template-columns: 1fr; } }
.req-list li { display: grid; grid-template-columns: 22px 1fr auto; gap: 10px; align-items: baseline; padding: 11px 0; border-bottom: 1px solid var(--panel-line); }
.req-list .tick { color: var(--led); font-family: var(--f-mono); }
.req-list .src { font-family: var(--f-mono); font-size: .72rem; color: var(--on-panel-muted); text-align: right; }
.section--white .req-list li, .req-list--light li { border-bottom-color: var(--line); }
.req-list--light .tick { color: var(--ok); }
.req-list--light .src { color: var(--muted); }

/* Comparison table */
.compare { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: .96rem; }
.compare th, .compare td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare thead th { background: var(--ink); color: #fff; font-family: var(--f-head); letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }
.compare tbody th { font-family: var(--f-head); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; font-size: .92rem; color: var(--ink-2); width: 26%; }
.compare td.yes { color: var(--ok); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }
.step { padding: 24px 24px 8px 0; border-bottom: 1px solid var(--line); }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); font-family: var(--f-mono); color: var(--accent-ink); font-size: .85rem; display: block; margin-bottom: 10px; }
.step h3 { font-size: 1.3rem; }
.step p { color: var(--muted); font-size: .96rem; }
.section--panel .steps, .section--panel .step { border-color: var(--panel-line); }
.section--panel .step::before { color: var(--led); }

/* Callout */
.callout { border-left: 3px solid var(--accent); background: var(--card); padding: 18px 22px; border-radius: 0 var(--radius) var(--radius) 0; }
.callout--warn { border-left-color: var(--warn); background: #fffaf0; }
.callout p:last-child { margin: 0; }
.callout strong { font-family: var(--f-head); letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }

/* CTA band */
.cta-band { background: var(--panel); color: var(--on-panel); border-radius: var(--radius); padding: clamp(28px, 5vw, 56px); display: grid; grid-template-columns: 1.4fr auto; gap: 24px; align-items: center; }
.cta-band h2 { color: #fff; margin-bottom: 8px; font-size: clamp(1.8rem, 3.4vw, 2.5rem); }
.cta-band p { color: var(--on-panel-muted); margin: 0; }
.cta-band .btn--ghost { border-color: #4a5560; color: #fff; }
.cta-band .btn--ghost:hover { border-color: #fff; color: #fff; }
@media (max-width: 760px) { .cta-band { grid-template-columns: 1fr; } }

/* Panel configurations */
.config { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; padding: clamp(32px, 5vw, 56px) 0; border-bottom: 1px solid var(--line); }
.config:last-child { border-bottom: 0; }
.config:nth-child(even) .config__media { order: 2; }
@media (max-width: 860px) { .config { grid-template-columns: 1fr; } .config:nth-child(even) .config__media { order: 0; } }
.config__media { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.config dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0 0 18px; font-size: .95rem; }
.config dt { font-family: var(--f-head); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.config dd { margin: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 20px; padding: 0; list-style: none; }
.chips li { font-size: .85rem; background: var(--paper); border: 1px solid var(--line); border-radius: 100px; padding: 4px 12px; }
.chips a { text-decoration: none; color: var(--ink-2); }
.chips a:hover { color: var(--accent-ink); }

/* Panel explorer */
.explorer-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.explorer-tab { font-family: var(--f-head); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; font-size: .95rem; background: var(--panel-2); color: var(--on-panel); border: 1px solid var(--panel-line); border-radius: 4px; padding: 9px 16px; cursor: pointer; }
.explorer-tab[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.explorer { display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px; align-items: start; }
@media (max-width: 960px) { .explorer { grid-template-columns: 1fr; } }
.explorer__stage { position: relative; background: #fff; border-radius: var(--radius); overflow: hidden; }
.explorer__stage img { width: 100%; }
.hs { position: absolute; width: 30px; height: 30px; transform: translate(-50%, -50%); border-radius: 50%; border: 2px solid #fff; background: var(--accent); color: #fff; font-family: var(--f-mono); font-size: .72rem; font-weight: 500; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: 0 0 0 3px rgba(31,111,209,.35), 0 2px 6px rgba(0,0,0,.3); padding: 0; }
.hs:hover, .hs[aria-pressed="true"] { background: var(--led); color: var(--panel); box-shadow: 0 0 0 4px rgba(240,180,41,.4), 0 2px 6px rgba(0,0,0,.3); }
@media (max-width: 600px) { .hs { width: 22px; height: 22px; font-size: .6rem; border-width: 1.5px; } }
.explorer__info { background: var(--panel-2); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: 20px; min-height: 280px; }
.explorer__info h3 { color: #fff; font-size: 1.4rem; margin-bottom: 6px; }
.explorer__info .brand-tag { font-family: var(--f-mono); font-size: .75rem; color: var(--led); display: block; margin-bottom: 10px; }
.explorer__info p { color: var(--on-panel-muted); font-size: .95rem; }
.explorer__info img { border-radius: 4px; margin-bottom: 14px; background: #fff; }
.explorer__info .hint { color: var(--on-panel-muted); font-family: var(--f-mono); font-size: .82rem; }
.explorer__list { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.explorer__list button { background: transparent; border: 1px solid var(--panel-line); color: var(--on-panel); border-radius: 100px; padding: 4px 10px; font-size: .8rem; cursor: pointer; font-family: var(--f-body); }
.explorer__list button:hover { border-color: var(--on-panel-muted); }

/* Gallery */
.showcase { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(24px, 4vw, 48px); align-items: start; }
@media (max-width: 900px) { .showcase { grid-template-columns: 1fr; } }
.showcase__media { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.comp-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.comp-list li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: .94rem; }
.comp-list b { display: block; font-weight: 600; }
.comp-list span { color: var(--muted); }
.photo-grid { columns: 3 280px; column-gap: 14px; }
.photo-grid button { display: block; width: 100%; margin: 0 0 14px; padding: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; cursor: zoom-in; break-inside: avoid; }
.photo-grid img { width: 100%; transition: transform .3s; }
.photo-grid button:hover img { transform: scale(1.03); }
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(10,14,18,.94); display: none; align-items: center; justify-content: center; padding: 56px 16px; }
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 4px; }
.lightbox button { position: absolute; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.25); color: #fff; width: 46px; height: 46px; border-radius: 50%; font-size: 1.3rem; cursor: pointer; }
.lightbox .lb-close { top: 12px; right: 12px; }
.lightbox .lb-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.lightbox .lb-next { right: 12px; top: 50%; transform: translateY(-50%); }
.lightbox .lb-count { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); color: #aab4bd; font-family: var(--f-mono); font-size: .8rem; }

/* Architecture diagram */
.diagram { background: var(--panel-2); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: clamp(16px, 3vw, 32px); }
.diagram svg { width: 100%; height: auto; display: block; }

/* Forms */
.form { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 4vw, 40px); }
.form fieldset { border: 0; padding: 0; margin: 0 0 28px; }
.form legend { font-family: var(--f-head); font-weight: 700; font-size: 1.3rem; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 14px; padding: 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label, .field .label { font-family: var(--f-head); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-size: .92rem; color: var(--ink-2); }
.field .req { color: var(--accent-ink); }
.field input, .field select, .field textarea {
  font: inherit; font-size: 1rem; color: var(--ink);
  padding: 11px 12px; border: 1px solid var(--line-strong); border-radius: 4px; background: #fff; width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(31,111,209,.15); }
.field textarea { min-height: 130px; resize: vertical; }
.field .help { font-size: .85rem; color: var(--muted); }
.checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px 16px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .96rem; cursor: pointer; }
.check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--accent); flex: 0 0 auto; }
.hp { position: absolute; left: -9999px; }
.notice { padding: 16px 20px; border-radius: var(--radius); margin-bottom: 24px; }
.notice--ok { background: var(--ok-soft); border: 1px solid #b9e0c9; color: #14512e; }
.notice--err { background: #fdecec; border: 1px solid #f2c0c0; color: #7a1d1d; }
.notice h3 { margin-bottom: 4px; color: inherit; }
.aside-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.aside-card + .aside-card { margin-top: 16px; }
.aside-card ul { padding-left: 18px; margin: 0; }
.aside-card li { margin-bottom: 6px; color: var(--ink-2); }
.form-layout { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(20px, 4vw, 40px); align-items: start; }
@media (max-width: 900px) { .form-layout { grid-template-columns: 1fr; } }

/* Roadmap */
.roadmap { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--panel-line); }
.roadmap li { position: relative; padding: 0 0 28px 28px; }
.roadmap li::before { content: ''; position: absolute; left: -7px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--panel); border: 2px solid var(--on-panel-muted); }
.roadmap li.done::before { background: var(--ok); border-color: var(--ok); }
.roadmap li.now::before { background: var(--led); border-color: var(--led); box-shadow: 0 0 0 4px rgba(240,180,41,.2); }
.roadmap .when { font-family: var(--f-mono); font-size: .78rem; color: var(--led); display: block; margin-bottom: 4px; }
.roadmap h3 { color: #fff; font-size: 1.3rem; margin-bottom: 4px; }
.roadmap p { margin: 0; }

/* Footer */
.site-footer { background: var(--panel); color: var(--on-panel-muted); padding: 64px 0 28px; margin-top: 0; border-top: 1px solid var(--panel-line); }
.site-footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 860px) { .site-footer__grid { grid-template-columns: 1fr 1fr; } .site-footer__brand { grid-column: 1 / -1; } }
.site-footer__brand img { height: 56px; width: auto; margin-bottom: 16px; }
.site-footer__brand p { max-width: 34ch; font-size: .95rem; }
.site-footer h4 { color: #fff; font-size: .95rem; margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; font-size: .95rem; }
.site-footer a { color: var(--on-panel); text-decoration: none; overflow-wrap: anywhere; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.site-footer__legal { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--panel-line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; font-size: .8rem; }
.site-footer__legal p { margin: 0; max-width: 70ch; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }
.field .check { font-family: var(--f-body); font-weight: 400; text-transform: none; letter-spacing: 0; font-size: .96rem; color: var(--ink); }
.status-note { margin: 20px 0 0; padding: 12px 14px; font-size: .92rem; color: var(--ink-2); background: var(--warn-soft); border-left: 3px solid var(--warn); border-radius: 0 4px 4px 0; }
.status-note strong { font-family: var(--f-head); letter-spacing: .06em; text-transform: uppercase; font-weight: 600; }
/* Pricing */
.card__foot { margin-top: auto; padding-top: 12px; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.card__foot .card__batd { margin: 0; padding: 0; }
.card__price { font-family: var(--f-head); font-weight: 700; font-size: 1.35rem; color: var(--ink); letter-spacing: .01em; }
.card__price--text { font-size: .95rem; font-weight: 600; color: var(--muted); letter-spacing: .04em; text-transform: uppercase; }
.price-block { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin: -4px 0 18px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.price-block__amount { font-family: var(--f-head); font-weight: 700; font-size: 2.2rem; line-height: 1; color: var(--ink); }
.price-block__amount--text { font-size: 1.2rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.price-block__note { font-size: .9rem; color: var(--muted); }
.check .check__price { margin-left: auto; font-family: var(--f-mono); font-size: .82rem; color: var(--muted); white-space: nowrap; padding-left: 8px; }
.estimate { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-top: 14px; padding: 14px 16px; background: var(--paper); border: 1px solid var(--line); border-radius: 4px; }
.estimate b { font-family: var(--f-head); font-size: 1.6rem; }
.estimate span { font-size: .88rem; color: var(--muted); }
/* FAQ */
.faq details { border-bottom: 1px solid var(--line); }
.faq details:first-child { border-top: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 14px 28px 14px 0; position: relative; font-weight: 600; font-size: 1.02rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 4px; top: 10px; font-family: var(--f-mono); font-size: 1.2rem; color: var(--accent-ink); }
.faq details[open] summary::after { content: '\2212'; }
.faq details p { color: var(--ink-2); margin: 0 0 16px; }
picture { display: contents; }

/* ---------- Panel configurator ---------- */
.configurator-section { background: var(--panel); color: var(--on-panel); }
.configurator-section h2 { color: #fff; }
.configurator-section .lede { color: var(--on-panel); }
.configurator-section .eyebrow { color: var(--led); }
.configurator-section .muted { color: var(--on-panel-muted); }
.cfg { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); gap: 16px; align-items: start; }
.cfg__stage { grid-column: 1 / -1; }
.cfg__controls { grid-column: 1 / -1; display: grid !important; grid-template-columns: repeat(3, 1fr); }
.cfg__step--picker { grid-column: 1; grid-row: 3; }
.cfg__summary { grid-column: 2 !important; grid-row: 3; }
@media (max-width: 980px) {
  .cfg { grid-template-columns: 1fr; }
  .cfg__controls { grid-template-columns: 1fr; }
  .cfg__step--picker, .cfg__summary { grid-column: 1 !important; grid-row: auto; }
}
.cfg__stage { background: radial-gradient(ellipse at 50% 0%, #2a3138 0%, #171b1f 70%); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: clamp(8px, 2vw, 20px); }
.cfg__svg { width: 100%; height: auto; display: block; user-select: none; }
.cfg__svg .shell { fill: #1b2025; stroke: #3a444e; stroke-width: 2; }
.cfg__svg .placard { font-family: var(--f-head); font-weight: 600; font-size: 11px; letter-spacing: .14em; fill: #7d8994; }
.cfg__svg .bay { cursor: pointer; outline: none; }
.cfg__svg .bay rect { fill: #0d1013; stroke: #4a5560; stroke-width: 1.5; stroke-dasharray: 5 4; transition: fill .15s, stroke .15s; }
.cfg__svg .bay:hover rect, .cfg__svg .bay:focus-visible rect { fill: #161b20; stroke: #8fbaf2; }
.cfg__svg .bay--filled rect { fill: #0a0c0e; stroke: #5b6874; stroke-dasharray: none; }
.cfg__svg .bay--sel rect { stroke: var(--led); stroke-width: 3; stroke-dasharray: none; }
.cfg__svg .bay__name { font-family: var(--f-head); font-weight: 600; letter-spacing: .06em; fill: #f2f4f5; text-anchor: middle; }
.cfg__svg .bay__price { font-family: var(--f-mono); font-size: 12px; fill: var(--led); text-anchor: middle; }
.cfg__svg .bay__empty { font-family: var(--f-head); font-weight: 600; font-size: 14px; letter-spacing: .12em; fill: #7d8994; text-anchor: middle; }
.cfg__svg .bay__id { font-family: var(--f-mono); font-size: 9px; fill: #5b6874; text-anchor: end; }
.cfg__svg .bay__led { fill: #1e9e55; }
.cfg__hint { margin: 10px 0 0; font-family: var(--f-mono); font-size: .78rem; color: var(--on-panel-muted); text-align: center; }
.cfg__controls { display: flex; flex-direction: column; gap: 16px; }
.cfg__step { background: var(--panel-2); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: 14px 16px; }
.cfg__step h3 { font-size: 1.05rem; text-transform: uppercase; letter-spacing: .08em; color: #fff; margin: 0 0 10px; }
.cfg__step h3 span { font-family: var(--f-mono); font-size: .78rem; color: var(--led); margin-right: 6px; letter-spacing: 0; }
.cfg__chips { display: flex; flex-wrap: wrap; gap: 6px; }
.cfg__chip { font-family: var(--f-head); font-weight: 600; font-size: .92rem; letter-spacing: .04em; background: transparent; color: var(--on-panel); border: 1px solid #3a444e; border-radius: 100px; padding: 6px 12px; cursor: pointer; }
.cfg__chip:hover { border-color: var(--on-panel-muted); }
.cfg__chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.cfg__empty { margin: 0; color: var(--on-panel-muted); font-size: .92rem; }
.cfg__picker-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.cfg__picker-head b { font-family: var(--f-head); font-size: 1.1rem; color: var(--led); letter-spacing: .04em; }
.cfg__picker-head span { font-family: var(--f-mono); font-size: .75rem; color: var(--on-panel-muted); }
.cfg__opts { list-style: none; margin: 0; padding: 0; max-height: 300px; overflow-y: auto; border-top: 1px solid var(--panel-line); }
.cfg__opts button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 10px; text-align: left; background: transparent; border: 0; border-bottom: 1px solid var(--panel-line); color: var(--on-panel); padding: 8px 4px; cursor: pointer; font: inherit; font-size: .92rem; }
.cfg__opts button:hover { background: #222930; }
.cfg__opts button[aria-pressed="true"] { background: rgba(31,111,209,.25); }
.cfg__opts .n small { display: block; font-family: var(--f-mono); font-size: .68rem; color: var(--on-panel-muted); text-transform: uppercase; }
.cfg__opts .p { font-family: var(--f-mono); font-size: .8rem; color: var(--led); white-space: nowrap; }
.cfg__remove { margin-top: 10px; background: none; border: 1px solid #3a444e; color: var(--on-panel-muted); border-radius: 4px; padding: 6px 10px; cursor: pointer; font: inherit; font-size: .85rem; }
.cfg__summary { grid-column: 1 / -1; background: var(--panel-2); border: 1px solid var(--panel-line); border-radius: var(--radius); padding: 14px 16px; }
.cfg__list { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0 20px; }
.cfg__row { display: grid; grid-template-columns: 34px 1fr auto; gap: 8px; align-items: baseline; text-align: left; background: none; border: 0; border-bottom: 1px solid var(--panel-line); color: var(--on-panel); padding: 7px 2px; cursor: pointer; font: inherit; font-size: .9rem; }
.cfg__row .id { font-family: var(--f-mono); font-size: .75rem; color: var(--on-panel-muted); }
.cfg__row .p { font-family: var(--f-mono); font-size: .78rem; color: var(--led); }
.cfg__row.is-empty .n { color: #6b7782; font-style: italic; }
.cfg__row.is-sel { background: rgba(240,180,41,.08); }
.cfg__total { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 14px; margin-top: 14px; }
.cfg__total-label { font-family: var(--f-head); font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--on-panel-muted); margin-right: 10px; }
.cfg__total b { font-family: var(--f-head); font-size: 2rem; color: #fff; }
.cfg__total-note { display: block; font-size: .8rem; color: var(--on-panel-muted); }
.configurator-section .btn--ghost { border-color: #4a5560; color: #fff; }
.configurator-section .btn--ghost:hover { border-color: #fff; color: #fff; }
/* System layers */
.layer { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 0 0 22px; overflow: hidden; }
.layer__media { aspect-ratio: 16 / 10; background: #fff; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; }
.layer__media img { width: 100%; height: 100%; object-fit: contain; padding: 10px; }
.layer__media--dark { background: var(--panel); }
.layer .tile__num, .layer h3, .layer p { padding: 0 20px; }
.layer h3 { font-size: 1.3rem; }
.layer p { color: var(--muted); margin: 0; font-size: .96rem; }
.req-list--single { grid-template-columns: 1fr; }