:root {
  --font-body:
    "Atkinson Hyperlegible", "Segoe UI", "Helvetica Neue", sans-serif;
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", Consolas, monospace;

  --bg-0: #f4f6ef;
  --bg-1: #e3e8db;
  --ink-0: #101b18;
  --ink-1: #2d3a36;
  --ink-soft: #5a6963;

  --panel: #fffffd;
  --panel-2: #f7fbf2;
  --line: #c6d1c5;

  --brand: #005f73;
  --brand-strong: #00464f;
  --brand-contrast: #f9fffd;
  --ok: #2f7a43;
  --warn: #b76a00;
  --danger: #a7283f;

  --focus: #0a9396;
  --shadow-1: 0 14px 30px rgba(31, 54, 47, 0.12);
  --shadow-2: 0 22px 44px rgba(20, 39, 35, 0.2);

  --radius-1: 0.6rem;
  --radius-2: 1rem;
  --radius-3: 1.6rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;

  --fast: 160ms ease;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--ink-0);
  background: radial-gradient(
    circle at 20% 10%,
    #dce9d6 0%,
    var(--bg-0) 50%,
    #eff3ea 100%
  );
  line-height: 1.45;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  color: var(--ink-0);
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

a {
  color: var(--brand-strong);
}

a:hover {
  color: var(--brand);
}

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.hidden {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.small-muted {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.status-line {
  margin-top: var(--space-2);
  color: var(--ink-soft);
  min-height: 1.4rem;
}

.status-error {
  color: var(--danger);
}

.btn {
  border: 1px solid transparent;
  border-radius: var(--radius-1);
  padding: 0.62rem 0.9rem;
  font-weight: 650;
  cursor: pointer;
  transition:
    transform var(--fast),
    background-color var(--fast),
    color var(--fast),
    border-color var(--fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--brand);
  color: var(--brand-contrast);
  border-color: var(--brand);
}

.btn-primary:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.btn-secondary {
  background: var(--panel);
  color: var(--ink-1);
  border-color: var(--line);
}

.btn-secondary:hover {
  background: var(--panel-2);
}

.btn-danger {
  background: #fff3f6;
  color: var(--danger);
  border-color: #f3c0ca;
}

.btn-danger:hover {
  background: #ffe8ee;
}

.btn-block {
  width: 100%;
}

.btn-large {
  padding: 0.85rem 1.2rem;
}

.btn-small {
  padding: 0.3rem 0.58rem;
  font-size: 0.85rem;
}

.text-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-1);
  background: #fff;
  color: var(--ink-0);
  padding: 0.65rem 0.8rem;
}

.text-input::placeholder {
  color: #74817b;
}

.text-area {
  min-height: 160px;
  resize: vertical;
}

.form-stack {
  display: grid;
  gap: var(--space-3);
}

.form-stack label {
  display: grid;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--ink-1);
}

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

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.72rem 0.65rem;
  border-bottom: 1px solid #dfe7de;
  vertical-align: top;
}

.data-table th {
  color: var(--ink-soft);
  font-size: 0.83rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.action-cell {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.kv-list {
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.kv-list div {
  display: grid;
  gap: var(--space-1);
}

.kv-list dt {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.kv-list dd {
  margin: 0;
  font-weight: 700;
}

.lv-body {
  min-height: 100vh;
  padding: var(--space-5);
}

.viewer-shell {
  width: min(1250px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  background: linear-gradient(170deg, #f7fbf2 0%, #ebf2e7 40%, #f8fbf5 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

.viewer-main {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 76vh;
}

.viewer-header,
.viewer-footer {
  padding: var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.viewer-brand-group {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.brand-badge {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.9rem;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: #fff;
  background: linear-gradient(140deg, #0a9396 0%, #005f73 100%);
}

.brand-text,
.viewer-title {
  font-family: var(--font-display);
}

.viewer-title {
  font-size: clamp(1.35rem, 2.2vw, 2rem);
}

.viewer-subtitle {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.now-playing-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: 999px;
  background: #fff;
  border: 1px solid #c9d6c8;
  color: var(--ink-1);
  padding: 0.35rem 0.8rem;
}

.live-dot,
.chat-live-marker {
  color: #cb271a;
  font-weight: 800;
}

.player-stage {
  position: relative;
  padding: 0 var(--space-5) var(--space-5);
}

.player {
  width: 100%;
  border-radius: 1.1rem;
  border: 1px solid #bfd0be;
  background: #000;
  box-shadow: var(--shadow-1);
}

.now-playing-overlay {
  position: absolute;
  right: calc(var(--space-5) + 0.7rem);
  bottom: calc(var(--space-5) + 0.7rem);
}

.now-playing-overlay-inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(0, 16, 19, 0.84);
  color: #f0fffb;
  padding: 0.44rem 0.72rem;
  border-radius: 999px;
  backdrop-filter: blur(3px);
}

.live-label {
  background: #d62828;
  color: #fff;
  border-radius: 999px;
  padding: 0.1rem 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
}

.overlay-title {
  font-size: 0.86rem;
}

.room-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.room-links a {
  text-decoration: none;
  font-weight: 650;
}

.chat-sidebar {
  background: #f0f6ee;
  border-left: 1px solid var(--line);
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 76vh;
}

.chat-header,
.chat-input-area {
  padding: var(--space-4);
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #d4dfd3;
  gap: var(--space-3);
}

.chat-room-title {
  font-weight: 700;
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
}

.chat-messages {
  padding: var(--space-4);
  overflow-y: auto;
  display: grid;
  align-content: start;
  gap: var(--space-2);
}

.message-row {
  display: flex;
}

.message-self-row {
  justify-content: flex-end;
}

.message-other-row {
  justify-content: flex-start;
}

.message-system-row {
  justify-content: center;
}

.message-bubble {
  max-width: 83%;
  border-radius: 1rem;
  padding: 0.58rem 0.72rem;
  box-shadow: var(--shadow-1);
  animation: messageIn var(--fast);
}

.message-other {
  background: #ffffff;
  border: 1px solid #d3e0d2;
}

.message-self {
  background: #005f73;
  color: #fff;
}

.message-system {
  font-size: 0.83rem;
  color: #1d4441;
  background: #d9efea;
  border: 1px solid #b5ddd6;
  border-radius: 999px;
  padding: 0.24rem 0.68rem;
  animation: messageIn var(--fast);
}

.message-sender {
  font-size: 0.75rem;
  opacity: 0.85;
  margin-bottom: 0.1rem;
}

.message-text {
  word-break: break-word;
}

.message-time {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.7rem;
  opacity: 0.75;
}

.chat-input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2);
}

.chat-note {
  margin-top: var(--space-2);
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.input {
  width: 100%;
  border: 1px solid #c2d2c1;
  border-radius: var(--radius-1);
  padding: 0.65rem 0.8rem;
  background: #fff;
  color: var(--ink-0);
}

.admin-body {
  min-height: 100vh;
  padding: var(--space-4);
}

.admin-shell {
  width: min(1320px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  border-radius: var(--radius-3);
  overflow: hidden;
  border: 1px solid var(--line);
  background: #f7fbf3;
  box-shadow: var(--shadow-2);
  min-height: calc(100vh - 2 * var(--space-4));
}

.admin-sidebar {
  background: #16423d;
  color: #ecfff6;
  display: grid;
  grid-template-rows: auto auto 1fr;
  gap: var(--space-4);
  padding: var(--space-5);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-text {
  font-weight: 700;
  letter-spacing: 0.03em;
}

.admin-nav {
  display: grid;
  gap: var(--space-2);
  align-content: start;
}

.tab-trigger {
  width: 100%;
  text-align: left;
  background: transparent;
  color: #ddf8ee;
  border: 1px solid transparent;
  border-radius: var(--radius-1);
  padding: 0.62rem 0.72rem;
  cursor: pointer;
  transition:
    background-color var(--fast),
    border-color var(--fast);
}

.tab-trigger:hover {
  background: rgba(255, 255, 255, 0.08);
}

.tab-trigger.is-active {
  background: #0a9396;
  color: #fff;
  border-color: #89d1c8;
}

.admin-main {
  padding: var(--space-6);
  overflow: auto;
}

.tab-panel {
  display: grid;
  gap: var(--space-4);
}

.tab-panel[hidden] {
  display: none;
}

.panel-header-row {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.panel-card {
  border: 1px solid #d8e2d8;
  border-radius: var(--radius-2);
  background: #fff;
  padding: var(--space-4);
  box-shadow: var(--shadow-1);
}

.button-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.upload-dropzone {
  border: 2px dashed #97b8aa;
  border-radius: var(--radius-2);
  padding: var(--space-5);
  background: #effaf5;
  display: grid;
  justify-items: start;
  gap: var(--space-2);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
}

.stat-card {
  border: 1px solid #dce7db;
  border-radius: var(--radius-2);
  background: #fff;
  padding: var(--space-4);
  box-shadow: var(--shadow-1);
}

.stat-value {
  margin-top: var(--space-2);
  font-size: clamp(1.35rem, 2.8vw, 2rem);
  font-family: var(--font-mono);
}

.stat-caption {
  margin-top: var(--space-1);
  color: var(--ink-soft);
}

.moderation-grid {
  display: grid;
  grid-template-columns: minmax(300px, 1fr) minmax(0, 1.5fr);
  gap: var(--space-4);
}

.split-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.service-list {
  display: grid;
  gap: var(--space-2);
}

.service-row {
  border: 1px solid #dbe5db;
  border-radius: var(--radius-1);
  padding: 0.75rem;
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.service-row-right {
  text-align: right;
}

.service-status {
  margin: 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.service-status-healthy {
  color: var(--ok);
}

.service-status-degraded {
  color: var(--warn);
}

.service-status-unhealthy {
  color: var(--danger);
}

.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-4);
}

.auth-shell {
  width: min(460px, 100%);
}

.auth-card {
  border: 1px solid #cad8c9;
  border-radius: var(--radius-3);
  background: #fff;
  box-shadow: var(--shadow-2);
  padding: var(--space-6);
  display: grid;
  gap: var(--space-3);
}

.auth-kicker {
  font-family: var(--font-display);
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.72rem;
}

.auth-subtitle {
  color: var(--ink-soft);
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .viewer-shell,
  .admin-shell {
    grid-template-columns: 1fr;
  }

  .chat-sidebar {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .admin-sidebar {
    grid-template-rows: auto;
  }

  .admin-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .admin-main {
    padding: var(--space-5);
  }

  .moderation-grid,
  .split-grid,
  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-row-right {
    text-align: left;
  }
}

@media (max-width: 760px) {
  .lv-body,
  .admin-body {
    padding: var(--space-2);
  }

  .viewer-header,
  .viewer-footer,
  .player-stage,
  .chat-header,
  .chat-input-area {
    padding: var(--space-3);
  }

  .viewer-footer {
    flex-direction: column;
    align-items: start;
  }

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

  .admin-main {
    padding: var(--space-3);
  }

  .moderation-grid,
  .split-grid,
  .stat-grid,
  .chat-input-row {
    grid-template-columns: 1fr;
  }

  .auth-card {
    padding: var(--space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}