/* Numerik Control: enterprise standard, built carefully.
   Neutral slate surfaces, one deep teal accent, Geist for text, Geist Mono for data. */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --surface: #ffffff;
  --line: #e4e7ec;
  --line-strong: #cfd4dc;
  --ink: #0d1320;
  --ink-2: #3d4655;
  --ink-3: #667085;
  --accent: #0b6e5f;
  --accent-ink: #ffffff;
  --accent-soft: #e6f2ef;
  --warn: #9a5b00;
  --warn-soft: #fdf3e2;
  --bad: #b42318;
  --bad-soft: #fdecea;
  --shadow: 0 1px 2px rgba(13, 19, 32, 0.06), 0 12px 32px -12px rgba(13, 19, 32, 0.18);

  --f-sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f16;
    --bg-soft: #0f141c;
    --surface: #131a24;
    --line: #222b38;
    --line-strong: #2e3949;
    --ink: #eef1f5;
    --ink-2: #c3cad5;
    --ink-3: #8b95a5;
    --accent: #3fbfa6;
    --accent-ink: #04211b;
    --accent-soft: #0f2c27;
    --warn: #f0b45a;
    --warn-soft: #2e2210;
    --bad: #f28b82;
    --bad-soft: #3a1714;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 16px 40px -16px rgba(0, 0, 0, 0.6);
    color-scheme: dark;
  }
}

* { 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: 400 16px/1.6 var(--f-sans); -webkit-font-smoothing: antialiased; font-feature-settings: "ss01"; }
::selection { background: var(--accent-soft); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
a { color: inherit; }
img, svg { display: block; }

.wrap { max-width: 1200px; margin: 0 auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.025em; text-wrap: balance; color: var(--ink); }
h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); line-height: 1.05; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); line-height: 1.12; }
h3 { font-size: 1.12rem; line-height: 1.3; letter-spacing: -0.01em; }
p { margin: 0; }
.muted { color: var(--ink-2); }
.small { font-size: 0.875rem; color: var(--ink-3); }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 1.05rem; letter-spacing: -0.02em; }
.logo svg { width: 24px; height: 24px; }
.nav { display: flex; gap: 24px; margin-left: 16px; font-size: 0.93rem; color: var(--ink-2); }
.nav a { text-decoration: none; }
.nav a:hover { color: var(--ink); }
.top .btn { margin-left: auto; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 8px; font: 500 0.93rem/1 var(--f-sans); text-decoration: none; border: 1px solid var(--line-strong); color: var(--ink); background: var(--surface); cursor: pointer; transition: background-color .15s ease, border-color .15s ease, transform .15s ease; }
.btn:hover { border-color: var(--ink-3); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn svg { width: 16px; height: 16px; }

/* hero */
.hero { padding: 72px 0 88px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
.hero-copy { display: grid; gap: 22px; }
.hero-copy .lede { font-size: 1.15rem; line-height: 1.55; color: var(--ink-2); max-width: 34rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 0.875rem; color: var(--ink-3); }
.facts span { display: inline-flex; align-items: center; gap: 7px; }
.facts i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* product window */
.app { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; font-size: 13px; line-height: 1.45; min-width: 0; }
.app-bar { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: var(--bg-soft); }
.app-bar .crumb { color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.app-bar .crumb b { color: var(--ink); font-weight: 500; }
.app-bar .who { margin-left: auto; font-size: 12px; color: var(--ink-2); border: 1px solid var(--line); border-radius: 999px; padding: 2px 9px; white-space: nowrap; }
.app-body { display: grid; grid-template-columns: minmax(0, 1fr) 260px; }
.app-list { border-right: 1px solid var(--line); min-width: 0; }
.row { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 11px 14px; border-bottom: 1px solid var(--line); }
.row:last-child { border-bottom: 0; }
.row .n { font-family: var(--f-mono); color: var(--ink-3); font-size: 12px; }
.row .d { min-width: 0; }
.row .d b { display: block; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row .d span { color: var(--ink-3); font-size: 12px; }
.row.sel { background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent); }
.chip { font-size: 11.5px; font-weight: 500; border-radius: 999px; padding: 2px 8px; white-space: nowrap; }
.chip.ok { background: var(--accent-soft); color: var(--accent); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.app-detail { padding: 14px; display: grid; gap: 12px; align-content: start; }
.app-detail .vi { font-weight: 500; }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: 12.5px; }
.kv dt { color: var(--ink-3); }
.kv dd { margin: 0; text-align: right; font-family: var(--f-mono); font-size: 12px; }
.readings { display: grid; gap: 6px; }
.readings .bar { height: 6px; border-radius: 3px; background: var(--line); overflow: hidden; display: flex; }
.readings .bar i { display: block; height: 100%; }
.readings .lab { display: flex; justify-content: space-between; font-size: 12px; color: var(--ink-2); }
.rule { font-family: var(--f-mono); font-size: 12px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 6px; padding: 7px 9px; color: var(--ink-2); }
.app-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.app-actions span { font-size: 12px; font-weight: 500; padding: 6px 10px; border-radius: 6px; border: 1px solid var(--line-strong); }
.app-actions span.p { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.app-foot { padding: 8px 14px; border-top: 1px solid var(--line); font-size: 11.5px; color: var(--ink-3); background: var(--bg-soft); }

/* sections */
.band { padding: 96px 0; border-top: 1px solid var(--line); }
.band.soft { background: var(--bg-soft); }
.head { display: grid; gap: 14px; max-width: 44rem; margin-bottom: 48px; }
.head p { font-size: 1.08rem; color: var(--ink-2); }

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); overflow: hidden; }
.step { padding: 24px 22px 26px; display: grid; gap: 10px; align-content: start; }
.step + .step { border-left: 1px solid var(--line); }
.step .ic { width: 36px; height: 36px; border-radius: 9px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.step .ic svg { width: 18px; height: 18px; }
.step p { font-size: 0.95rem; color: var(--ink-2); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.split.rev .split-copy { order: 2; }
.split-copy { display: grid; gap: 18px; }
.split-copy > p { font-size: 1.05rem; color: var(--ink-2); }
.ticks { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 12px; }
.ticks li { display: grid; grid-template-columns: 20px 1fr; gap: 10px; color: var(--ink-2); }
.ticks svg { width: 18px; height: 18px; color: var(--accent); margin-top: 3px; }
.who-for { font-size: 0.9rem; color: var(--ink-3); border-top: 1px solid var(--line); padding-top: 14px; }

/* cards inside module visuals */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; font-size: 13.5px; }
.panel-h { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.panel-h b { font-weight: 600; }
.flag { display: grid; grid-template-columns: 8px 1fr auto; gap: 12px; align-items: start; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.flag:last-child { border-bottom: 0; }
.flag .dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 7px; background: var(--warn); }
.flag b { font-weight: 500; display: block; }
.flag span { color: var(--ink-3); font-size: 12.5px; }
.flag code { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); white-space: nowrap; }
.pack { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; padding: 16px 18px; background: var(--bg-soft); border-top: 1px solid var(--line); }
.pack .file { width: 34px; height: 40px; border-radius: 6px; border: 1px solid var(--line-strong); background: var(--surface); display: grid; place-items: center; font: 600 9px var(--f-mono); color: var(--ink-3); }
.pack span { color: var(--ink-3); font-size: 12.5px; }

.chart { padding: 20px 18px 8px; display: grid; gap: 18px; }
.shift { display: grid; gap: 6px; }
.shift-h { display: flex; justify-content: space-between; font-size: 12.5px; color: var(--ink-2); }
.shift-h span { color: var(--ink-3); font-family: var(--f-mono); font-size: 12px; }
.track { position: relative; height: 34px; display: grid; gap: 4px; }
.track .b { height: 15px; border-radius: 4px; display: flex; align-items: center; justify-content: flex-end; padding-right: 6px; font: 500 11px var(--f-mono); }
.track .fc { background: var(--line-strong); color: var(--ink-2); }
.track .fc.over { background: var(--bad-soft); color: var(--bad); box-shadow: inset 0 0 0 1px var(--bad); }
.track .pl { background: var(--accent); color: var(--accent-ink); }
.track .cap { position: absolute; top: -4px; bottom: -4px; width: 0; border-left: 2px dashed var(--ink); }
.legend { display: flex; flex-wrap: wrap; gap: 16px; padding: 4px 18px 16px; font-size: 12px; color: var(--ink-3); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 12px; height: 8px; border-radius: 2px; background: var(--c); }
.legend i.dash { height: 12px; width: 0; border-left: 2px dashed var(--ink); background: none; }
.moves { border-top: 1px solid var(--line); }
.move { display: grid; grid-template-columns: 70px 1fr; gap: 12px; padding: 11px 18px; border-bottom: 1px solid var(--line); font-size: 12.5px; }
.move:last-child { border-bottom: 0; }
.move code { font-family: var(--f-mono); color: var(--ink); }
.move span { color: var(--ink-2); }

/* security grid */
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.cell { padding: 26px 24px 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; gap: 8px; align-content: start; }
.cell svg { width: 20px; height: 20px; color: var(--accent); margin-bottom: 6px; }
.cell p { color: var(--ink-2); font-size: 0.95rem; }

/* contact */
.contact .wrap { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; align-items: end; }
.contact .addr { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 600; letter-spacing: -0.03em; text-decoration: none; }
.contact .addr:hover { color: var(--accent); }
.copy-state { min-height: 1.4em; }

.foot { border-top: 1px solid var(--line); padding: 28px 0 40px; }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; font-size: 0.875rem; color: var(--ink-3); }

@media (max-width: 980px) {
  .hero .wrap, .split { grid-template-columns: 1fr; gap: 40px; }
  .split.rev .split-copy { order: 0; }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step:nth-child(3) { border-left: 0; }
  .step:nth-child(n+3) { border-top: 1px solid var(--line); }
  .grid3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .hero { padding: 40px 0 56px; }
  .band { padding: 64px 0; }
  .app-body { grid-template-columns: 1fr; }
  .app-list { border-right: 0; border-bottom: 1px solid var(--line); }
  .steps, .grid3 { grid-template-columns: 1fr; }
  .step + .step { border-left: 0; border-top: 1px solid var(--line); }
  .contact .wrap { grid-template-columns: 1fr; align-items: start; }
}

/* company page */
.hero.company { padding: 112px 0 120px; }
.hero.company .wrap { grid-template-columns: minmax(0, 1fr); }
.hero.company .hero-copy { max-width: 46rem; }
.product-card { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 28px 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; text-decoration: none; transition: border-color .15s ease, box-shadow .15s ease; }
.product-card:hover { border-color: var(--line-strong); box-shadow: var(--shadow); }
.product-card > div { display: grid; gap: 8px; max-width: 40rem; }
.product-card h3 { font-size: 1.35rem; }
.product-card p { color: var(--ink-2); }
@media (max-width: 720px) {
  .hero.company { padding: 64px 0 72px; }
  .product-card { flex-direction: column; align-items: flex-start; padding: 22px; }
}