/* aeoi browser validator - design tokens, layout, components, motion.
   Self-contained: fonts from ./fonts (Inter, OFL), no external stylesheet, works with the CSP. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/inter-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  color-scheme: light;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --bg: #f4f6f8;
  --bg-2: #eaeef2;
  --surface: #ffffff;
  --surface-2: #f7f9fb;
  --text: #0f1720;
  --muted: #5c6773;
  --border: #e1e6eb;
  --border-strong: #c9d1da;
  --accent: #1c4f9e;
  --accent-2: #13a89e;
  --accent-soft: #e4ecf9;
  --navy: #12305b;
  --ok: #157347;
  --ok-soft: #dcf5e6;
  --err: #b42318;
  --err-soft: #fde8e6;
  --warn: #b45309;
  --warn-soft: #fdf0dc;
  --info: #1d4ed8;
  --info-soft: #e2eafc;
  --shadow: 0 1px 2px rgba(15, 23, 32, 0.06), 0 8px 24px -12px rgba(15, 23, 32, 0.18);
  --shadow-lg: 0 2px 6px rgba(15, 23, 32, 0.08), 0 24px 48px -20px rgba(15, 23, 32, 0.28);
  --radius: 14px;
  --radius-sm: 9px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.55 var(--font);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--mono); font-size: 0.86em; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.hidden { display: none !important; }

/* ---------- background aurora ---------- */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background: var(--bg);
}
.aurora span {
  position: absolute;
  width: 60vmax;
  height: 60vmax;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  animation: drift 26s var(--ease) infinite alternate;
}
.aurora span:nth-child(1) { top: -30vmax; left: -20vmax; background: var(--accent-2); }
.aurora span:nth-child(2) { top: -20vmax; right: -25vmax; background: #7c9cff; animation-duration: 34s; animation-delay: -8s; }
.aurora span:nth-child(3) { bottom: -40vmax; left: 20vw; background: var(--accent); opacity: 0.18; animation-duration: 40s; animation-delay: -16s; }
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(8vw, 6vh, 0) scale(1.15); }
}

/* ---------- update banner ---------- */
.update { position: sticky; top: 8px; z-index: 5; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin: 8px 0 0; padding: 10px 14px; border-radius: var(--radius-sm); background: var(--accent); color: #fff; box-shadow: var(--shadow-lg); font-weight: 500; }
.update .btn.primary { background: #fff; color: var(--accent); border-color: #fff; }

/* ---------- layout ---------- */
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; }
.brand .mark {
  width: 34px; height: 34px; display: grid; place-items: center;
}
.brand .mark svg { width: 34px; height: 34px; }
.brand .name { font-size: 1.15rem; }
.brand .tag { font-weight: 500; color: var(--muted); font-size: 0.9rem; margin-left: 6px; }
.controls { display: flex; align-items: center; gap: 8px; }
.pill {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 7px 34px 7px 12px;
  font-size: 0.9rem;
  cursor: pointer;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 17px) 15px, calc(100% - 12px) 15px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.icon-btn {
  width: 36px; height: 36px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  display: grid; place-items: center; cursor: pointer;
}
.icon-btn svg { width: 18px; height: 18px; }
.icon-btn:hover, .pill:hover { border-color: var(--border-strong); }

/* ---------- hero ---------- */
.hero { padding: 36px 0 20px; }
.hero h1 {
  font-size: clamp(1.75rem, 3.6vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  max-width: 20ch;
}
.hero p { max-width: 62ch; margin: 0; color: var(--muted); font-size: 1.05rem; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem; font-weight: 500;
  padding: 5px 10px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); }

/* ---------- cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.grid { display: grid; gap: 16px; }
@media (min-width: 820px) { .grid.two { grid-template-columns: 1fr 1fr; } .grid.three { grid-template-columns: 1fr 1fr 1fr; } }
h2 { font-size: 1.05rem; margin: 0 0 12px; letter-spacing: -0.01em; }
h3 { font-size: 0.95rem; margin: 0 0 8px; }
.muted { color: var(--muted); }
.small { font-size: 0.88rem; }

/* ---------- boot stepper ---------- */
.boot { margin-top: 20px; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 12px; }
.step { position: relative; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border); font-size: 0.85rem; transition: all 0.4s var(--ease); }
.step .n { display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--border); font-size: 0.72rem; font-weight: 600; margin-right: 6px; transition: all 0.4s var(--ease); }
.step.active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.step.active .n { background: var(--accent); color: #fff; }
.step.done { border-color: var(--border); }
.step.done .n { background: var(--ok); color: #fff; }
.bar { height: 6px; border-radius: 999px; background: var(--border); overflow: hidden; margin-top: 14px; position: relative; }
.bar > i { position: absolute; inset: 0; width: 40%; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); animation: slide 1.4s var(--ease) infinite; }
.bar.done > i { width: 100%; animation: none; }
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(260%); } }
#status { margin-top: 10px; font-size: 0.92rem; }
#status.ok { color: var(--ok); font-weight: 600; }
#status.err { color: var(--err); font-weight: 600; }
@media (max-width: 640px) { .steps { grid-template-columns: 1fr 1fr; } }

/* ---------- drop zone ---------- */
.drop {
  margin-top: 16px;
  position: relative;
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 34px 20px;
  text-align: center;
  transition: all 0.25s var(--ease);
  cursor: pointer;
}
.drop.locked { opacity: 0.55; cursor: not-allowed; }
.drop.unlocked { animation: unlock 0.6s var(--ease); }
.drop:not(.locked):hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 6px color-mix(in srgb, var(--accent) 12%, transparent); }
.drop .ico { width: 48px; height: 48px; margin: 0 auto 10px; color: var(--accent); }
.drop .ico svg { width: 100%; height: 100%; }
.drop strong { display: block; font-size: 1.05rem; }
.drop .hint { color: var(--muted); font-size: 0.9rem; margin-top: 4px; }
.drop input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop.locked input[type=file] { pointer-events: none; }
@keyframes unlock { 0% { transform: scale(0.98); box-shadow: 0 0 0 0 var(--accent-soft); } 60% { box-shadow: 0 0 0 12px transparent; } 100% { transform: scale(1); } }

.options { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-top: 12px; align-items: center; font-size: 0.9rem; }
.options label { display: inline-flex; align-items: center; gap: 8px; max-width: 100%; }
.options .pill { max-width: 100%; min-width: 0; text-overflow: ellipsis; }
@media (max-width: 640px) {
  .options { flex-direction: column; align-items: stretch; }
  .options label { flex-direction: column; align-items: flex-start; gap: 4px; }
  .brand .tag { display: none; }
}
.samples { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 14px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; font-size: 0.9rem; font-weight: 500;
  transition: all 0.2s var(--ease);
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { filter: brightness(1.08); color: #fff; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn svg { width: 16px; height: 16px; }

/* ---------- results ---------- */
.results { margin-top: 20px; }
.verdict {
  display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center;
  border-left: 6px solid var(--border);
}
.verdict.ok { border-left-color: var(--ok); }
.verdict.bad { border-left-color: var(--err); }
.verdict .sigil { width: 64px; height: 64px; border-radius: 18px; display: grid; place-items: center; animation: pop 0.5s var(--ease); }
.verdict.ok .sigil { background: var(--ok-soft); color: var(--ok); }
.verdict.bad .sigil { background: var(--err-soft); color: var(--err); }
.verdict .sigil svg { width: 34px; height: 34px; }
.verdict h2 { font-size: 1.4rem; margin: 0; letter-spacing: -0.02em; }
.verdict .sub { color: var(--muted); margin-top: 2px; }
.verdict .file { font-family: var(--mono); font-size: 0.85rem; margin-top: 6px; word-break: break-all; }
@keyframes pop { 0% { transform: scale(0.6); opacity: 0; } 70% { transform: scale(1.08); } 100% { transform: scale(1); opacity: 1; } }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-top: 16px; }
.stat { padding: 12px 14px; border-radius: var(--radius-sm); background: var(--surface-2); border: 1px solid var(--border); }
.stat .v { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat .k { color: var(--muted); font-size: 0.8rem; margin-top: 2px; }
.stat.err .v { color: var(--err); } .stat.ok .v { color: var(--ok); } .stat.info .v { color: var(--info); }

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

/* charts */
.chart { margin-top: 8px; }
.bars { display: grid; gap: 8px; }
.bars .row { display: grid; grid-template-columns: 150px 1fr 40px; align-items: center; gap: 10px; font-size: 0.88rem; }
.bars .row .lbl { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bars .row .lbl b { font-family: var(--mono); font-weight: 600; margin-right: 6px; }
.bars .track { height: 10px; border-radius: 999px; background: var(--border); overflow: hidden; }
.bars .fill { height: 100%; width: 0; border-radius: 999px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); transition: width 0.9s var(--ease); }
.bars .row .n { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }
.ring { display: grid; grid-template-columns: 120px 1fr; gap: 16px; align-items: center; }
.ring svg { width: 120px; height: 120px; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 12; stroke-linecap: butt; }
.ring .track { stroke: var(--border); }
.ring .seg { transition: stroke-dasharray 0.9s var(--ease); }
.legend { display: grid; gap: 6px; font-size: 0.88rem; }
.legend div { display: flex; align-items: center; gap: 8px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.legend .n { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--muted); }
.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; font-size: 0.9rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

/* findings */
.filters { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 12px; }
.chip { padding: 5px 11px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface-2); font-size: 0.82rem; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
.chip .cnt { opacity: 0.8; margin-left: 4px; font-variant-numeric: tabular-nums; }
.findings { display: grid; gap: 10px; }
.finding {
  border: 1px solid var(--border); border-left-width: 5px; border-radius: var(--radius-sm);
  background: var(--surface); padding: 14px 16px;
  animation: rise 0.45s var(--ease) both;
}
.finding.error { border-left-color: var(--err); }
.finding.input { border-left-color: var(--warn); }
.finding.info { border-left-color: var(--info); }
.finding .head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.finding .code { font-family: var(--mono); font-size: 0.78rem; font-weight: 600; padding: 3px 8px; border-radius: 6px; }
.finding.error .code { background: var(--err-soft); color: var(--err); }
.finding.input .code { background: var(--warn-soft); color: var(--warn); }
.finding.info .code { background: var(--info-soft); color: var(--info); }
.finding .title { font-weight: 600; }
.finding .loc { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.finding .loc span { font-size: 0.8rem; padding: 3px 8px; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--border); }
.finding .loc span.path { font-family: var(--mono); }
.finding .msg { margin-top: 8px; font-size: 0.92rem; }
.finding .fix { margin-top: 6px; font-size: 0.92rem; display: flex; gap: 8px; align-items: flex-start; }
.finding .fix svg { width: 16px; height: 16px; flex: none; margin-top: 3px; color: var(--accent); }
.finding details { margin-top: 8px; font-size: 0.86rem; }
.finding summary { cursor: pointer; color: var(--muted); }
.finding blockquote { margin: 6px 0 0; padding: 8px 12px; border-left: 3px solid var(--border-strong); color: var(--muted); }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.finding:nth-child(2) { animation-delay: 0.05s; } .finding:nth-child(3) { animation-delay: 0.1s; } .finding:nth-child(4) { animation-delay: 0.15s; } .finding:nth-child(5) { animation-delay: 0.2s; } .finding:nth-child(n+6) { animation-delay: 0.25s; }

/* busy state */
.busy { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.spinner { width: 22px; height: 22px; border-radius: 50%; border: 3px solid var(--border); border-top-color: var(--accent); animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.skeleton { height: 14px; border-radius: 6px; background: linear-gradient(90deg, var(--border) 25%, var(--surface-2) 50%, var(--border) 75%); background-size: 200% 100%; animation: shimmer 1.2s linear infinite; margin-top: 10px; }
@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* registry, plan, build, outcome */
.regbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
.regstatus { font-weight: 600; }
.regstatus.ok { color: var(--ok); }
.reglist { margin-top: 12px; overflow-x: auto; }
.reglist table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.reglist th, .reglist td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.reglist th { color: var(--muted); font-weight: 500; }
.reglist td.mono { font-family: var(--mono); font-size: 0.8rem; word-break: break-all; }
.reglist .status { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.reglist .status.built, .reglist .status.submitted { background: var(--warn-soft); color: var(--warn); }
.reglist .status.accepted { background: var(--ok-soft); color: var(--ok); }
.reglist .status.rejected { background: var(--err-soft); color: var(--err); }
.reglist .status.discarded { background: var(--surface-2); color: var(--muted); }
.reglist .btn { padding: 4px 10px; font-size: 0.8rem; }
.plan { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 8px 0 12px; }
.plan .tag { padding: 5px 11px; border-radius: 999px; font-size: 0.85rem; font-weight: 600; background: var(--surface-2); border: 1px solid var(--border); }
.plan .tag.new { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.plan .tag.changed { background: var(--info-soft); color: var(--info); border-color: transparent; }
.plan .tag.deleted { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.plan .tag.blocked { background: var(--err-soft); color: var(--err); border-color: transparent; }
.plan .sum { flex-basis: 100%; font-size: 0.9rem; }
.pill.text { padding: 7px 12px; background-image: none; min-width: 140px; }
.keyrow { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin: 10px 0; font-size: 0.9rem; }
.builtlist { display: grid; gap: 10px; margin-top: 12px; }
.built { border: 1px solid var(--border); border-left: 5px solid var(--accent); border-radius: var(--radius-sm); padding: 12px 14px; background: var(--surface); }
.built .head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-weight: 600; }
.built .ref { font-family: var(--mono); font-size: 0.8rem; word-break: break-all; color: var(--muted); margin-top: 4px; }
.built .actions { margin-top: 10px; }
.next { margin-top: 14px; padding: 12px 14px; border-radius: var(--radius-sm); background: var(--accent-soft); font-size: 0.92rem; }
label.block { display: block; margin-top: 8px; }
textarea { width: 100%; box-sizing: border-box; margin-top: 6px; padding: 10px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-2); color: var(--text); font: 0.88rem/1.5 var(--mono); resize: vertical; }
.msg-ok { color: var(--ok); font-weight: 600; }
.msg-err { color: var(--err); font-weight: 600; }

/* how it works + footer */
.how { margin-top: 28px; }
.how .grid { margin-top: 12px; }
.how .card { padding: 16px 18px; }
.how .num { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 0.85rem; margin-bottom: 8px; }
details.plain { margin-top: 14px; }
details.plain summary { cursor: pointer; font-weight: 600; }
details.plain p { color: var(--muted); }
footer { margin: 36px 0 40px; color: var(--muted); font-size: 0.85rem; }
footer .row { display: flex; flex-wrap: wrap; gap: 6px 16px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}