/* CertCutover — shared styles.
   Design voice: an ops console at 2am. Monospace as the display face because
   certificates live in mono; amber/teal/red map to the exact urgency states
   the inspector reports, so color carries meaning, not decoration. */

:root {
  --midnight: #0c1420;
  --slate: #121d2c;
  --slate-2: #0f1826;
  --hairline: #22303f;
  --ink: #eaf0f7;
  --muted: #8697ab;
  --signal: #ffb02e;   /* amber — brand accent, warning/expiry */
  --valid: #35d0a5;    /* teal — ok/valid */
  --alarm: #ff5d52;    /* red — expired/critical */
  --plan: #6ea8fe;     /* blue — plan-ahead window */

  --mono: ui-monospace, "JetBrains Mono", "SF Mono", "Menlo", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;

  --maxw: 900px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--midnight);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* subtle grid texture — like a certificate's ruled fields, kept very faint */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(var(--hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.035;
  mask-image: radial-gradient(ellipse 90% 45% at 50% -5%, #000 20%, transparent 85%);
}

a { color: var(--signal); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---- top bar ---- */
.topbar { border-bottom: 1px solid var(--hairline); position: sticky; top: 0;
  background: rgba(12,20,32,.85); backdrop-filter: blur(8px); z-index: 20; }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-family: var(--mono); font-weight: 700; font-size: 17px; letter-spacing: -0.02em;
  color: var(--ink); display: inline-flex; align-items: center; gap: 9px; }
.brand:hover { text-decoration: none; }
.brand .tick { width: 10px; height: 10px; border-radius: 2px; background: var(--valid);
  box-shadow: 0 0 10px var(--valid); }
.navlinks { display: flex; gap: 22px; font-size: 14.5px; }
.navlinks a { color: var(--muted); }
.navlinks a:hover { color: var(--ink); text-decoration: none; }

/* ---- eyebrow: code-comment vernacular ---- */
.eyebrow { font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.06em;
  color: var(--muted); text-transform: none; margin: 0 0 14px; }
.eyebrow::before { content: "// "; color: var(--signal); }

/* ---- headings ---- */
h1, h2, h3 { font-family: var(--mono); letter-spacing: -0.02em; line-height: 1.12; }
h1 { font-size: clamp(30px, 5.2vw, 50px); font-weight: 700; margin: 0 0 16px; }
h2 { font-size: clamp(22px, 3.4vw, 30px); font-weight: 700; margin: 0 0 14px; }
h3 { font-size: 18px; font-weight: 700; margin: 0 0 8px; }
.lede { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); max-width: 60ch; margin: 0 0 28px; }

/* ---- sections ---- */
section { padding: 68px 0; border-top: 1px solid var(--hairline); }
section.hero { border-top: 0; padding: 60px 0 40px; }

/* ---- hero inspector ---- */
.console {
  background: linear-gradient(180deg, var(--slate) 0%, var(--slate-2) 100%);
  border: 1px solid var(--hairline); border-radius: 14px; overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,.8);
}
.console-head { display: flex; align-items: center; gap: 8px; padding: 12px 16px;
  border-bottom: 1px solid var(--hairline); font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.dot { width: 11px; height: 11px; border-radius: 50%; background: var(--hairline); }
.console-head .label { margin-left: 8px; }
.console-body { padding: 18px; }

textarea {
  width: 100%; min-height: 132px; resize: vertical;
  background: var(--midnight); color: var(--ink);
  border: 1px solid var(--hairline); border-radius: 10px; padding: 14px;
  font-family: var(--mono); font-size: 13px; line-height: 1.5;
}
textarea:focus { outline: 2px solid var(--signal); outline-offset: 1px; border-color: transparent; }
textarea::placeholder { color: #4c5c72; }

.controls { display: flex; align-items: center; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.btn {
  font-family: var(--mono); font-size: 14px; font-weight: 700;
  background: var(--signal); color: #201400; border: 0; border-radius: 9px;
  padding: 11px 20px; cursor: pointer; transition: transform .06s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--hairline); }
.btn.ghost:hover { color: var(--ink); }
.status { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.sample { font-family: var(--mono); font-size: 12.5px; color: var(--muted); background: none;
  border: 0; cursor: pointer; padding: 0; text-decoration: underline; }
.sample:hover { color: var(--ink); }

/* ---- result card ---- */
.result { margin-top: 18px; display: none; }
.result.show { display: block; animation: rise .25s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .result.show { animation: none; } }

.verdict { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.badge { font-family: var(--mono); font-weight: 700; font-size: 12px; letter-spacing: .06em;
  text-transform: uppercase; padding: 4px 11px; border-radius: 6px; border: 1px solid; }
.b-ok       { color: var(--valid);  border-color: var(--valid);  background: rgba(53,208,165,.1); }
.b-plan     { color: var(--plan);   border-color: var(--plan);   background: rgba(110,168,254,.1); }
.b-warning  { color: var(--signal); border-color: var(--signal); background: rgba(255,176,46,.12); }
.b-critical { color: var(--alarm);  border-color: var(--alarm);  background: rgba(255,93,82,.14); }
.b-expired  { color: var(--alarm);  border-color: var(--alarm);  background: rgba(255,93,82,.18); }
.verdict .headline { font-family: var(--mono); font-size: 15px; }

/* signature element: the validity timeline */
.timeline { margin: 6px 0 20px; }
.timeline .track { position: relative; height: 12px; border-radius: 6px; overflow: hidden;
  background: var(--midnight); border: 1px solid var(--hairline); }
.timeline .fill { position: absolute; top: 0; bottom: 0; left: 0;
  background: linear-gradient(90deg, var(--valid), var(--signal) 78%, var(--alarm)); }
.timeline .now { position: absolute; top: -5px; bottom: -5px; width: 2px; background: var(--ink); }
.timeline .now::after { content: "now"; position: absolute; top: -18px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 10px; color: var(--ink); white-space: nowrap; }
.timeline .ends { display: flex; justify-content: space-between; margin-top: 8px;
  font-family: var(--mono); font-size: 11.5px; color: var(--muted); }

dl.fields { display: grid; grid-template-columns: 128px 1fr; gap: 7px 18px; margin: 0;
  font-size: 14px; }
dl.fields dt { color: var(--muted); font-family: var(--mono); font-size: 12.5px; }
dl.fields dd { margin: 0; font-family: var(--mono); font-size: 13px; word-break: break-all; }

.warnbox { margin-top: 16px; border-left: 3px solid var(--signal);
  background: rgba(255,176,46,.07); border-radius: 6px; padding: 12px 14px; font-size: 14px; }
.warnbox div { margin: 3px 0; }
.warnbox.err { border-color: var(--alarm); background: rgba(255,93,82,.08); color: #ffd3cf; }

/* ---- overlap-window diagram (hero teaching moment) ---- */
.overlap { position: relative; display: grid; gap: 10px; margin-top: 8px; }
.overlap .bar { position: relative; height: 30px; border-radius: 7px; border: 1px solid var(--hairline);
  font-family: var(--mono); font-size: 12px; display: flex; align-items: center; padding: 0 12px; color: var(--midnight); font-weight: 700; }
.overlap .old { background: linear-gradient(90deg, var(--valid), var(--alarm)); width: 66%; }
.overlap .new { background: linear-gradient(90deg, var(--plan), var(--valid)); width: 66%; margin-left: 34%; }
.overlap .zone { position: absolute; top: -6px; bottom: -6px; left: 34%; width: 32%;
  border: 1px dashed var(--signal); border-radius: 6px; }
.overlap .zone span { position: absolute; top: -20px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 11px; color: var(--signal); white-space: nowrap; }

/* ---- feature / step grids ---- */
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--slate); border: 1px solid var(--hairline); border-radius: 12px; padding: 20px; }
.card h3 { color: var(--ink); }
.card p { color: var(--muted); margin: 0; font-size: 14.5px; }
.card .k { font-family: var(--mono); color: var(--signal); font-size: 13px; }

/* ---- email capture ---- */
.capture { background: var(--slate); border: 1px solid var(--hairline); border-radius: 14px; padding: 28px; }
.capture form { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.capture input { flex: 1 1 260px; background: var(--midnight); color: var(--ink);
  border: 1px solid var(--hairline); border-radius: 9px; padding: 12px 14px; font-family: var(--mono); font-size: 14px; }
.capture input:focus { outline: 2px solid var(--signal); outline-offset: 1px; border-color: transparent; }
.capture .note { font-size: 13px; color: var(--muted); margin-top: 10px; min-height: 1.2em; }
.capture .note.good { color: var(--valid); }
.capture .note.bad { color: var(--alarm); }

/* ---- prose (guide pages) ---- */
.prose { max-width: 68ch; }
.prose p, .prose li { color: #c3cede; }
.prose h2 { margin-top: 40px; }
.prose h3 { margin-top: 26px; color: var(--ink); }
.prose code { font-family: var(--mono); background: var(--slate); border: 1px solid var(--hairline);
  padding: 1px 6px; border-radius: 5px; font-size: 13.5px; color: var(--signal); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin: 7px 0; }
.prose .callout { border-left: 3px solid var(--plan); background: rgba(110,168,254,.07);
  padding: 12px 16px; border-radius: 6px; margin: 22px 0; }
.checklist { list-style: none; padding: 0; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--hairline); }
.checklist li::before { content: "▢"; color: var(--signal); font-family: var(--mono); flex-shrink: 0; }

.guide-list { display: grid; gap: 14px; }
.guide-list a { display: block; background: var(--slate); border: 1px solid var(--hairline);
  border-radius: 12px; padding: 18px 20px; color: var(--ink); }
.guide-list a:hover { border-color: var(--signal); text-decoration: none; }
.guide-list .q { font-family: var(--mono); font-size: 16px; }
.guide-list .d { color: var(--muted); font-size: 14px; margin-top: 4px; }

/* ---- footer ---- */
footer { border-top: 1px solid var(--hairline); padding: 34px 0 60px; color: var(--muted); font-size: 13.5px; }
footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); }
footer a:hover { color: var(--ink); }
.disclaimer { max-width: 60ch; line-height: 1.5; }

@media (max-width: 620px) {
  .navlinks { gap: 14px; font-size: 13.5px; }
  dl.fields { grid-template-columns: 100px 1fr; }
  section { padding: 48px 0; }
}