:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-strong: #eef4fb;
  --line: #d9e2ec;
  --line-strong: #b9c8d8;
  --text: #142033;
  --muted: #66768a;
  --primary: #1f6feb;
  --primary-strong: #174ea6;
  --success: #0f7a4f;
  --success-bg: #e8f7ef;
  --danger: #b42318;
  --danger-bg: #fff0ed;
  --warning-bg: #fff7df;
  --shadow: 0 16px 34px rgba(20, 32, 51, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-strong);
  text-decoration: underline;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1.18;
}

h2 {
  margin-bottom: 10px;
  font-size: 21px;
  line-height: 1.3;
}

h3 {
  margin-bottom: 10px;
  font-size: 17px;
}

main,
.page,
.admin-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(420px, 100%);
  padding: 28px;
}

.topbar,
.hero,
.card,
.panel,
.box,
.ad-card,
.room-card,
.summary-box,
.stat,
.asset-card,
.dashboard-link,
.auth-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.topbar,
.hero {
  padding: 22px;
}

.card,
.panel,
.box,
.ad-card,
.room-card {
  padding: 20px;
  overflow-x: auto;
}

.stack,
.ad-list,
.room-list {
  display: grid;
  gap: 16px;
}

.muted,
.status,
.empty,
.live-meta,
.asset-url {
  color: var(--muted);
}

.notice,
.success,
.error,
.status.ok,
.status.off {
  margin: 12px 0;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.success,
.notice,
.status.ok {
  color: var(--success);
  background: var(--success-bg);
  border-color: #b8e6cb;
}

.error,
.status.off {
  color: var(--danger);
  background: var(--danger-bg);
  border-color: #ffd1c8;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 0 0 20px;
}

.topbar .nav,
.hero .nav {
  margin: 14px 0 0;
}

.nav a,
.button,
button,
.watch-link {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none;
}

button,
.button,
.watch-link,
.nav a.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

button.secondary,
.button.secondary,
button[name="save_remark"] {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--text);
}

button.danger,
button[name="delete"] {
  border-color: #efb1a8;
  background: var(--danger-bg);
  color: var(--danger);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

label {
  display: block;
  margin-bottom: 7px;
  color: #27384d;
  font-size: 13px;
  font-weight: 800;
}

input,
textarea,
select {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

input[type="checkbox"],
input[type="radio"] {
  width: auto;
  min-height: auto;
}

input[type="file"] {
  padding: 9px;
  background: var(--surface-soft);
}

textarea {
  min-height: 92px;
  resize: vertical;
}

pre,
code {
  border-radius: 7px;
  background: #eef3f8;
  color: #16324f;
}

code {
  padding: 2px 6px;
  word-break: break-all;
}

pre {
  max-width: 100%;
  padding: 14px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.grid,
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field.full {
  grid-column: 1 / -1;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
}

.summary,
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.summary-box,
.stat {
  padding: 15px;
  background: var(--surface-soft);
  box-shadow: none;
}

.summary-box strong,
.stat strong {
  display: block;
  margin-top: 4px;
  color: var(--text);
  font-size: 26px;
  line-height: 1.15;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  margin-top: 16px;
}

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

th {
  color: #4d6078;
  font-weight: 800;
}

.badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 9px;
  border-radius: 999px;
  background: #e8eef6;
  color: #31445b;
  font-size: 12px;
  font-weight: 800;
}

.badge.ok,
.status-running {
  background: var(--success-bg);
  color: var(--success);
}

.badge.off,
.status-stopped {
  background: var(--danger-bg);
  color: var(--danger);
}

.badge.info {
  background: #eaf2ff;
  color: var(--primary-strong);
}

.badge + .badge {
  margin-left: 6px;
}

.status-detail {
  margin-top: 8px;
}

.compact-note {
  margin: 8px 0 0;
}

.live-head,
.ad-header,
.room-head,
.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.live-status {
  min-width: 180px;
  text-align: right;
}

.live-status strong {
  font-size: 28px;
}

.dashboard-grid,
.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.dashboard-grid {
  margin-top: 16px;
}

.asset-grid {
  margin-top: 14px;
}

.dashboard-link {
  padding: 18px;
  box-shadow: none;
}

.dashboard-link strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 18px;
}

.ad-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 18px;
}

.preview {
  display: grid;
  gap: 10px;
  align-content: start;
}

.preview img,
.asset-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.checkbox-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.inline-form {
  display: inline;
  margin: 0;
}

.compact-actions {
  margin-top: 0;
}

.tool-form-grid {
  margin-top: 16px;
}

.sticky-actions {
  position: sticky;
  bottom: 12px;
  z-index: 5;
  width: fit-content;
  margin-left: auto;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.peer-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.peer-row:last-child {
  border-bottom: 0;
}

.peer-row form {
  display: grid;
  grid-template-columns: minmax(90px, auto) minmax(160px, 1fr) auto auto;
  gap: 10px;
  align-items: center;
}

.peer-ip {
  font-weight: 800;
}

.progress-wrap {
  display: none;
  margin-top: 14px;
}

.progress-bar {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: var(--primary);
  transition: width 0.2s ease;
}

.progress-text,
.status-note,
.detail {
  margin: 8px 0;
}

.analytics-toolbar,
.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.analytics-toolbar {
  margin: 16px 0;
}

.period-switch,
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.analytics-kpis {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.analytics-kpis .stat {
  min-width: 0;
}

.analytics-kpis span,
.analytics-kpis small {
  display: block;
}

.analytics-kpis small {
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
}

.analytics-kpis strong {
  font-size: clamp(21px, 2.4vw, 29px);
  overflow-wrap: anywhere;
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.analytics-wide {
  grid-column: 1 / -1;
}

.section-heading h2 {
  margin-bottom: 3px;
}

.section-heading p {
  margin-bottom: 0;
}

.chart-legend span::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 5px;
  border-radius: 999px;
}

.legend-users::before { background: #1f6feb; }
.legend-sessions::before { background: #0f7a4f; }
.legend-actions::before { background: #d97706; }
.legend-live::before { background: rgba(15, 122, 79, 0.6); }

.hour-table tr.active-hour td {
  background: #f0f7ff;
}

.protocol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.protocol-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
}

.protocol-card > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.protocol-card > div > strong {
  font-size: 18px;
}

.protocol-card dl {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 16px 0 0;
}

.protocol-card dl div {
  min-width: 0;
}

.protocol-card dt {
  color: var(--muted);
  font-size: 12px;
}

.protocol-card dd {
  margin: 2px 0 0;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.protocol-dimensions {
  margin-top: 16px;
}

.protocol-list {
  min-width: 170px;
}

.protocol-list .badge {
  margin: 2px 4px 2px 0;
}

.canvas-wrap {
  width: 100%;
  min-height: 280px;
  margin-top: 12px;
}

.canvas-wrap canvas {
  display: block;
  max-width: 100%;
}

.metric-list {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

.metric-list.compact {
  gap: 11px;
}

.metric-row {
  display: grid;
  grid-template-columns: minmax(100px, 1.2fr) minmax(100px, 2fr) auto;
  gap: 10px;
  align-items: center;
}

.metric-row span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metric-bar {
  height: 9px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--surface-strong);
}

.metric-bar i {
  display: block;
  height: 100%;
  min-width: 3px;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), #62a0ff);
}

.donut-layout {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  align-items: center;
  margin-top: 18px;
}

.donut {
  position: relative;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--line);
}

.donut::after {
  content: "";
  position: absolute;
  inset: 29px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
}

.donut-labels {
  display: grid;
  gap: 9px;
}

.donut-labels div {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 8px;
  align-items: center;
}

.donut-labels i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.hour-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(30px, 1fr));
  gap: 6px;
  margin-top: 14px;
}

.hour-cell {
  display: grid;
  place-items: center;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-strong);
  font-size: 11px;
}

.hour-cell strong {
  font-size: 15px;
}

@media (max-width: 760px) {
  main,
  .page,
  .admin-shell {
    width: min(100% - 24px, 1180px);
    padding: 18px 0 36px;
  }

  .topbar,
  .hero,
  .live-head,
  .ad-header,
  .room-head,
  .analytics-toolbar,
  .section-heading {
    display: grid;
  }

  .card,
  .panel,
  .box,
  .ad-card,
  .room-card,
  .topbar,
  .hero,
  .auth-card {
    padding: 16px;
  }

  .nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .nav a,
  .actions > *,
  button,
  .button,
  .watch-link {
    width: 100%;
  }

  .actions form {
    width: 100%;
  }

  .live-status {
    min-width: 0;
    text-align: left;
  }

  .ad-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr 1fr;
  }

  .peer-row form {
    grid-template-columns: 1fr;
  }

  .analytics-kpis {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .analytics-grid {
    grid-template-columns: 1fr;
  }

  .analytics-wide {
    grid-column: auto;
  }

  .hour-grid {
    grid-template-columns: repeat(6, minmax(30px, 1fr));
  }
}

@media (max-width: 460px) {
  .nav,
  .stats,
  .summary,
  .dashboard-grid,
  .asset-grid {
    grid-template-columns: 1fr;
  }

  .donut-layout {
    grid-template-columns: 1fr;
  }

  .donut {
    margin: 0 auto;
  }

  .metric-row {
    grid-template-columns: minmax(90px, 1fr) minmax(70px, 1fr) auto;
  }
}