:root {
  --bg: #07111f;
  --bg-soft: rgba(12, 25, 43, 0.82);
  --panel: rgba(10, 20, 36, 0.9);
  --panel-strong: rgba(12, 24, 41, 0.98);
  --line: rgba(140, 170, 210, 0.18);
  --line-strong: rgba(140, 170, 210, 0.28);
  --text: #eef3fb;
  --muted: #93a8c6;
  --accent: #68e1b8;
  --accent-soft: rgba(104, 225, 184, 0.14);
  --warn: #f6b861;
  --danger: #ff6f7d;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --radius: 22px;
  --radius-sm: 16px;
  --font: "Segoe UI", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(51, 110, 180, 0.28), transparent 34%),
    radial-gradient(circle at top right, rgba(37, 161, 130, 0.22), transparent 28%),
    linear-gradient(160deg, #03060d 0%, #07111f 52%, #040a12 100%);
}
a { color: inherit; text-decoration: none; }
code, pre, input, select, textarea, button { font: inherit; }
.app-shell { display: grid; grid-template-columns: 300px 1fr; min-height: 100vh; }
.app-bg { position: fixed; inset: 0; pointer-events: none; backdrop-filter: saturate(120%); }
.sidebar {
  position: sticky; top: 0; height: 100vh; padding: 28px 22px;
  border-right: 1px solid var(--line);
  background: rgba(4, 8, 14, 0.72); backdrop-filter: blur(18px);
}
.brand-block { padding: 14px 10px 28px; }
.brand-kicker, .eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: 0.12em; font-size: 12px; }
.brand-mark { display: block; font-size: 34px; font-weight: 700; margin: 12px 0 4px; }
.brand-sub, .muted { color: var(--muted); }
.nav-list { display: grid; gap: 10px; }
.nav-link {
  padding: 14px 16px; border-radius: 16px; color: var(--muted);
  border: 1px solid transparent; transition: 180ms ease;
}
.nav-link:hover, .nav-link.active {
  color: var(--text); border-color: var(--line); background: rgba(255,255,255,0.03);
}
.logout-form { margin-top: 28px; }
.main-shell { padding: 30px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 26px; }
.topbar h1 { margin: 8px 0 0; font-size: 34px; }
.topbar-meta { display: flex; gap: 10px; flex-wrap: wrap; }
.meta-pill, .badge {
  display: inline-flex; align-items: center; gap: 8px; border-radius: 999px;
  border: 1px solid var(--line); padding: 8px 12px; color: var(--muted); background: rgba(255,255,255,0.03);
}
.badge.good { color: #90f0cd; background: var(--accent-soft); border-color: rgba(104, 225, 184, 0.28); }
.badge.warn { color: #ffd7a1; border-color: rgba(246, 184, 97, 0.24); background: rgba(246, 184, 97, 0.14); }
.badge.muted-badge { color: var(--muted); }
.panel, .card, .auth-card, .player-card, .stream-card {
  background: linear-gradient(180deg, rgba(17, 31, 54, 0.82), rgba(8, 16, 29, 0.95));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.panel { padding: 28px 32px; margin-bottom: 22px; }
.card, .player-card, .stream-card { padding: 24px 26px; }
.panel-header, .stream-card-top, .card-actions, .list-row {
  display: flex; justify-content: space-between; align-items: center; gap: 14px;
}
.panel-header { margin-bottom: 22px; }
.panel-header h2,
.card h3,
.stream-card h3,
.topbar h1,
.auth-card h1 {
  margin: 0;
}
.card-grid, .stream-card-grid, .link-grid, .delay-grid, .health-grid, .token-grid, .two-column {
  display: grid; gap: 18px;
}
.card-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 22px; }
.card-grid-compact .card { min-height: 120px; }
.stream-card-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 420px));
  justify-content: start;
  align-items: stretch;
}
.link-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.delay-grid, .token-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); margin-top: 18px; }
.health-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.two-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat-card strong { display: block; font-size: 38px; margin-top: 12px; }
.stat-label { color: var(--muted); font-size: 14px; }
.stream-metrics, .health-list { display: grid; gap: 12px; margin: 18px 0; }
.stream-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stream-card {
  display: flex;
  flex-direction: column;
  min-height: 280px;
}
.stream-card .card-actions {
  margin-top: auto;
}
.stream-metrics > div {
  display: grid;
  gap: 6px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.stream-metrics > div:nth-last-child(-n + 2) {
  border-bottom: none;
}
.stream-metrics span, .health-list dt { color: var(--muted); font-size: 13px; }
.stream-metrics strong, .health-list dd { margin: 5px 0 0; }
.metric-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 16px;
  row-gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.metric-pair span { color: var(--muted); font-size: 13px; }
.metric-pair strong { text-align: right; justify-self: end; }
.metric-pair:last-child { border-bottom: none; padding-bottom: 0; }
.card code {
  display: block;
  margin-top: 12px;
  padding: 12px 14px;
  overflow-wrap: anywhere;
}
.button {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 16px; border-radius: 14px; border: 1px solid var(--line);
  color: var(--text); background: rgba(255,255,255,0.02); cursor: pointer; transition: 180ms ease;
}
.button:hover { transform: translateY(-1px); border-color: var(--line-strong); }
.button.primary { background: linear-gradient(135deg, #43c49f, #1c8f7e); border-color: transparent; color: #03110e; font-weight: 700; }
.button.ghost { color: var(--text); }
.button.small { min-height: 34px; padding: 0 12px; font-size: 14px; }
.button.danger { background: rgba(255, 111, 125, 0.14); color: #ffc7cd; border-color: rgba(255, 111, 125, 0.28); }
.button.stretch { width: 100%; }
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { text-align: left; padding: 14px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.card-actions, .table-actions, .stack-inline {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-start;
}
.card-actions { margin-top: 10px; }
.grid-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.grid-form label, .stack-form label { display: grid; gap: 8px; color: var(--muted); }
.full-span { grid-column: 1 / -1; }
input, select, textarea {
  width: 100%; border-radius: 14px; border: 1px solid var(--line);
  background: rgba(4, 11, 20, 0.78); color: var(--text); padding: 14px 16px;
}
textarea { resize: vertical; }
.checkbox { grid-auto-flow: column; justify-content: flex-start; align-items: center; gap: 10px; }
.checkbox input { width: auto; }
.flash { margin-bottom: 18px; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line); }
.flash-error { color: #ffd9df; border-color: rgba(255,111,125,0.25); background: rgba(255,111,125,0.12); }
.flash-info { color: #c7f8ec; border-color: rgba(104,225,184,0.25); background: rgba(104,225,184,0.12); }
.auth-shell {
  display: grid; place-items: center; min-height: 100vh; padding: 28px;
}
.auth-card { width: min(100%, 460px); padding: 32px; }
.auth-card.wide { width: min(100%, 560px); }
.stack-form { display: grid; gap: 16px; }
.trim { max-width: 340px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.test-result pre, .log-row, code {
  background: rgba(3, 9, 17, 0.76); border: 1px solid var(--line); border-radius: 16px;
}
.test-result pre { margin: 0; padding: 16px; overflow: auto; }
.log-list { display: grid; gap: 12px; }
.log-row { padding: 14px 16px; }
.log-meta { display: flex; gap: 10px; color: var(--muted); margin-bottom: 8px; flex-wrap: wrap; }
.filter-bar { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.list-stack { display: grid; gap: 12px; }
.list-row { padding: 14px 0; border-bottom: 1px solid var(--line); }
.list-row:last-child { border-bottom: none; padding-bottom: 0; }
.danger-zone { margin-top: 22px; }
.player-card audio { width: 100%; margin-top: 12px; }
.health-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 16px;
  align-items: start;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.health-list > div:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.health-list dd {
  text-align: right;
}
.link-grid > .card,
.delay-grid > .card,
.token-grid > .card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.player-card { margin-top: 18px; }
.test-result pre, .log-row, .card code, code {
  border-radius: var(--radius-sm);
}
.empty-state { padding: 36px 22px; border: 1px dashed var(--line-strong); border-radius: var(--radius); color: var(--muted); text-align: center; }

@media (max-width: 1080px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .card-grid, .link-grid, .two-column { grid-template-columns: 1fr; }
  .panel { padding: 24px; }
}

@media (max-width: 760px) {
  .main-shell { padding: 18px; }
  .grid-form, .stream-metrics { grid-template-columns: 1fr; }
  .topbar { flex-direction: column; }
  .health-list > div,
  .metric-pair {
    grid-template-columns: 1fr;
  }
  .health-list dd,
  .metric-pair strong {
    text-align: left;
    justify-self: start;
  }
}