:root {
  color-scheme: dark;
  --bg: #0b0f16;
  --panel: #131a24;
  --panel-2: #182131;
  --line: #24304180;
  --text: #e6edf6;
  --muted: #8b9cb3;
  --accent: #4da3ff;
  --ok: #46d18c;
  --warn: #ffb454;
  --danger: #ff6b6b;
  --radius: 12px;
}

* { box-sizing: border-box; }

/* Must win over the display rules below (.login, .tab-body, section …). */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #16233a 0%, var(--bg) 60%);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

code, .mono { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace; font-size: 12px; }
.muted { color: var(--muted); }
.error { color: var(--danger); }

button {
  font: inherit;
  border-radius: 8px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #04121f;
  font-weight: 600;
  padding: 8px 14px;
  cursor: pointer;
}
button.ghost { background: transparent; border-color: var(--line); color: var(--text); font-weight: 500; }
button.ghost:hover { background: var(--panel-2); }
button.danger { background: transparent; border-color: #ff6b6b55; color: var(--danger); }
button.danger:hover { background: #ff6b6b18; }

input {
  font: inherit;
  width: 100%;
  padding: 9px 11px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #0c1220;
  color: var(--text);
}
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); }

/* ---------------------------------------------------------------- login */
.login { display: grid; place-items: center; min-height: 100vh; padding: 20px; }
.login-card {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 14px;
}
.login-card h1 { margin: 0; font-size: 22px; }
.login-card p { margin: 0; font-size: 13px; }

/* --------------------------------------------------------------- topbar */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: #0d131dcc;
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 5;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 8px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.dot.on { background: var(--ok); box-shadow: 0 0 10px #46d18c88; }
.stats { display: flex; gap: 16px; flex: 1; flex-wrap: wrap; color: var(--muted); font-size: 12px; }
.stats b { color: var(--text); font-variant-numeric: tabular-nums; }
.topbar-actions { display: flex; gap: 8px; }

main { padding: 20px; max-width: 1500px; margin: 0 auto; }
.section-head { display: flex; align-items: center; gap: 14px; margin-bottom: 14px; flex-wrap: wrap; }
.section-head h2 { margin: 0; font-size: 17px; }
.detail-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; }
.toggle { display: flex; flex-direction: row; align-items: center; gap: 6px; color: var(--muted); }
.toggle input { width: auto; }

/* ----------------------------------------------------------------- grid */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-2px); }
.card .thumb { aspect-ratio: 16 / 10; background: #070b12; object-fit: cover; object-position: top; width: 100%; display: block; }
.card-body { padding: 12px 14px; display: grid; gap: 6px; }
.card-title { display: flex; align-items: baseline; gap: 8px; }
.card-title strong { font-size: 14px; }
.card-url { color: var(--muted); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-foot { display: flex; gap: 10px; align-items: center; font-size: 12px; color: var(--muted); }
.pill { border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; font-size: 11px; }
.pill.warn { color: var(--warn); border-color: #ffb45455; }
.pill.ok { color: var(--ok); border-color: #46d18c55; }
.empty { color: var(--muted); text-align: center; padding: 60px 20px; }

/* --------------------------------------------------------------- detail */
.detail-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); gap: 16px; align-items: start; }
.viewport-panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
#viewport { width: 100%; display: block; background: #070b12; min-height: 240px; }
.viewport-meta { padding: 10px 14px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; word-break: break-all; }
.side { display: grid; gap: 12px; }
.meta-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; display: grid; gap: 6px; font-size: 13px; }
.meta-row { display: flex; justify-content: space-between; gap: 12px; }
.meta-row span:first-child { color: var(--muted); }
.tabs { display: flex; gap: 6px; }
.tab { background: transparent; border: 1px solid var(--line); color: var(--muted); font-weight: 500; padding: 6px 12px; }
.tab.active { color: var(--text); border-color: var(--accent); background: #4da3ff14; }
.tab-body {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  max-height: 60vh;
  overflow: auto;
  display: grid;
  gap: 4px;
  align-content: start;
}
.entry { display: grid; grid-template-columns: 62px 1fr; gap: 8px; padding: 5px 6px; border-radius: 6px; font-size: 12px; }
.entry:hover { background: var(--panel-2); }
.entry time { color: var(--muted); font-variant-numeric: tabular-nums; }
.entry .kind { display: inline-block; margin-right: 6px; font-size: 10px; text-transform: uppercase; letter-spacing: .04em; }
.kind-tool { color: var(--accent); }
.kind-navigation { color: var(--ok); }
.kind-error, .kind-console { color: var(--danger); }
.kind-lifecycle { color: var(--warn); }
.kind-network { color: var(--muted); }

dialog { border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: var(--radius); padding: 22px; width: min(420px, 92vw); }
dialog::backdrop { background: #04070cbb; }
dialog form { display: grid; gap: 12px; }
dialog h3 { margin: 0; }
dialog menu { display: flex; justify-content: flex-end; gap: 8px; margin: 6px 0 0; padding: 0; }

@media (max-width: 900px) {
  .detail-layout { grid-template-columns: 1fr; }
}