:root {
  color-scheme: light;
  --ink: #10221c;
  --muted: #66756f;
  --line: #dce5e1;
  --surface: #ffffff;
  --canvas: #f2f6f3;
  --green: #0b7752;
  --green-dark: #075b40;
  --red: #b63838;
  --amber: #b7791f;
  --shadow: 0 18px 50px rgba(23, 55, 43, 0.09);
}

* { box-sizing: border-box; }

/* Keep the HTML hidden state authoritative over grid/flex component layouts. */
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(34, 139, 94, 0.12), transparent 34rem),
    var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

button, input, select { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }

.shell { width: min(960px, calc(100% - 32px)); margin: 0 auto; padding: 42px 0 64px; }
.app-view { display: grid; gap: 20px; }
.card { background: var(--surface); border: 1px solid rgba(14, 72, 50, .09); border-radius: 20px; box-shadow: var(--shadow); padding: 28px; }
.login-card { width: min(430px, 100%); margin: 8vh auto 0; }
.brand-mark { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; background: var(--green); color: white; font-weight: 800; }
.eyebrow { margin: 14px 0 4px; color: var(--green); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1, h2 { margin: 0; letter-spacing: -.025em; }
h1 { font-size: clamp(28px, 5vw, 42px); }
h2 { font-size: 24px; }
.muted, small { color: var(--muted); }

.topbar, .section-heading, .status-card, .status-line, .actions { display: flex; align-items: center; }
.topbar, .section-heading, .status-card { justify-content: space-between; gap: 20px; }
.topbar .eyebrow, .section-heading .eyebrow, .status-card .eyebrow { margin-top: 0; }
.notice, .phase-note { display: flex; gap: 12px; border-radius: 14px; padding: 14px 18px; }
.notice { color: #744b0e; background: #fff5df; border: 1px solid #f4d28d; }
.phase-note { color: #41514b; background: #eaf0ed; }

.preview-actions, .preview-title, .delay-status { display: flex; align-items: center; }
.preview-actions { gap: 10px; }
.preview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 22px; }
.preview-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 15px; background: #f7faf8; }
.preview-title { justify-content: space-between; gap: 12px; padding: 13px 14px; }
.preview-badge { flex: 0 0 auto; border-radius: 999px; padding: 4px 9px; background: #e5ece8; color: var(--muted); font-size: 12px; font-weight: 800; }
.preview-badge.ready { background: #dff2e8; color: var(--green-dark); }
.preview-card video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #12201b; object-fit: contain; }
.preview-card p { min-height: 46px; margin: 0; padding: 12px 14px 14px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.delay-status { justify-content: space-between; gap: 16px; margin-top: 14px; border-radius: 12px; padding: 12px 14px; background: #edf5f1; color: #3f514a; font-size: 13px; }
.health-pill { flex: 0 0 auto; border-radius: 999px; padding: 7px 12px; background: #e5ece8; color: var(--muted); font-size: 13px; font-weight: 800; }
.health-pill.healthy { background: #dff2e8; color: var(--green-dark); }
.health-pill.alert { background: #fff0f0; color: var(--red); }
.monitor-summary { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 20px 0 14px; color: var(--muted); font-size: 13px; }
.monitor-summary strong { color: var(--ink); }
.health-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.health-item { display: grid; gap: 5px; border: 1px solid var(--line); border-radius: 13px; padding: 13px; background: #f7faf8; }
.health-item span, .health-item small { color: var(--muted); font-size: 12px; }
.health-item.alert { border-color: #efbaba; background: #fff4f4; }
.health-item.alert strong, .health-item.alert small { color: var(--red); }
.event-panel { margin-top: 14px; border-radius: 13px; padding: 13px 15px; background: #f4f8f6; }
.event-panel ol { margin: 8px 0 0; padding-left: 22px; color: var(--muted); font-size: 13px; line-height: 1.7; }
.backup-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(220px, .7fr); gap: 16px; margin-top: 18px; }
.backup-controls { display: flex; flex-direction: column; justify-content: space-between; gap: 16px; border: 1px solid var(--line); border-radius: 15px; padding: 16px; }
.backup-controls dl { display: grid; gap: 10px; margin: 0; }
.backup-controls dl div { display: flex; justify-content: space-between; gap: 12px; }
.backup-controls dt { color: var(--muted); }
.backup-controls dd { margin: 0; font-weight: 800; }
.actions.vertical { display: grid; padding: 0; }
.actions.vertical button { width: 100%; }
.pause-controls { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.candidate-controls { margin-top: 18px; }
.candidate-controls p { margin: 0 0 14px; font-size: 13px; line-height: 1.6; }
.candidate-grid { display: grid; grid-template-columns: minmax(140px, .35fr) minmax(0, 1.65fr); gap: 12px; }
.recording-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 18px 0; }
.recording-metrics div { min-width: 0; border-radius: 12px; padding: 12px 14px; background: #f4f8f6; }
.recording-metrics dt { color: var(--muted); font-size: 12px; }
.recording-metrics dd { overflow-wrap: anywhere; margin: 5px 0 0; font-weight: 800; }
.recording-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.recording-actions span { color: var(--muted); font-size: 12px; }
.recording-files { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 16px; }
.recording-list { display: grid; gap: 9px; margin-top: 10px; }
.recording-list > p { margin: 0; }
.recording-row { display: flex; align-items: center; justify-content: space-between; gap: 14px; border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: #f9fbfa; }
.recording-row > div:first-child { display: grid; min-width: 0; gap: 4px; }
.recording-row strong { overflow: hidden; text-overflow: ellipsis; }
.recording-row-actions { display: flex; align-items: center; flex: 0 0 auto; gap: 8px; }
.download-link { border-radius: 10px; padding: 10px 14px; background: #e7f3ed; color: var(--green-dark); font-weight: 750; text-decoration: none; }

form { display: grid; gap: 16px; margin-top: 22px; }
fieldset { min-width: 0; border: 1px solid var(--line); border-radius: 13px; padding: 16px; }
legend { padding: 0 7px; color: var(--ink); font-size: 14px; font-weight: 800; }
.monitor-inputs { grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 10px; }
.monitor-inputs label { font-size: 12px; }
label { display: grid; gap: 7px; color: #2f4039; font-size: 14px; font-weight: 700; }
input, select {
  width: 100%; min-height: 46px; border: 1px solid var(--line); border-radius: 11px;
  background: #fbfdfc; color: var(--ink); padding: 10px 12px; outline: none;
}
input:focus, select:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(11, 119, 82, .12); }
.grid.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.actions { flex-wrap: wrap; gap: 10px; padding-top: 4px; }
button { min-height: 42px; border-radius: 10px; border: 1px solid transparent; padding: 9px 16px; font-weight: 750; }
button.primary { background: var(--green); color: white; }
button.primary:hover { background: var(--green-dark); }
button.secondary { background: #e7f3ed; color: var(--green-dark); border-color: #c8e3d6; }
button.ghost { background: transparent; border-color: var(--line); color: var(--ink); }
button.danger { background: #fff0f0; color: var(--red); border-color: #f0caca; }
button.full { width: 100%; }
.message { min-height: 22px; margin: 16px 0 0; color: var(--muted); }
.message.error { color: var(--red); }
.message.success { color: var(--green); }

.status-line { gap: 10px; font-size: 20px; }
.status-dot { width: 11px; height: 11px; border-radius: 50%; background: #a8b2ae; box-shadow: 0 0 0 5px rgba(168, 178, 174, .15); }
.status-dot.live { background: #19a36d; box-shadow: 0 0 0 5px rgba(25, 163, 109, .16); }
.status-dot.waiting { background: var(--amber); box-shadow: 0 0 0 5px rgba(183, 121, 31, .16); }
.status-dot.failed { background: var(--red); box-shadow: 0 0 0 5px rgba(182, 56, 56, .15); }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(95px, 1fr)); gap: 12px; margin: 0; }
.metrics div { min-width: 100px; padding: 10px 12px; border-radius: 11px; background: #f4f8f6; }
.metrics dt { color: var(--muted); font-size: 12px; }
.metrics dd { margin: 4px 0 0; font-weight: 800; }

@media (max-width: 720px) {
  .shell { width: min(100% - 20px, 960px); padding: 18px 0 36px; }
  .card { border-radius: 16px; padding: 20px; }
  .topbar, .section-heading, .status-card { align-items: flex-start; }
  .status-card { flex-direction: column; }
  .metrics { width: 100%; grid-template-columns: 1fr 1fr; }
  .notice, .phase-note { flex-direction: column; gap: 5px; }
  .grid.two { grid-template-columns: 1fr; }
  .actions { display: grid; grid-template-columns: 1fr; }
  .actions button { width: 100%; }
  .preview-grid { grid-template-columns: 1fr; }
  .health-grid { grid-template-columns: 1fr 1fr; }
  .backup-layout { grid-template-columns: 1fr; }
  .candidate-grid { grid-template-columns: 1fr; }
  .pause-controls { display: grid; grid-template-columns: 1fr; }
  .pause-controls button { width: 100%; }
  .monitor-inputs { grid-template-columns: 1fr 1fr; }
  .preview-actions { width: 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .delay-status { align-items: flex-start; flex-direction: column; gap: 5px; }
  .recording-metrics { grid-template-columns: 1fr 1fr; }
  .recording-row { align-items: flex-start; flex-direction: column; }
  .recording-row-actions { width: 100%; }
  .recording-row-actions > * { flex: 1; text-align: center; }
}

@media (max-width: 390px) {
  .metrics { grid-template-columns: 1fr; }
  .section-heading { flex-direction: column; }
  .preview-actions { grid-template-columns: 1fr; }
  .health-grid, .monitor-inputs { grid-template-columns: 1fr; }
  .recording-metrics { grid-template-columns: 1fr; }
}