:root {
  color-scheme: light;
  --ink: #18202a;
  --muted: #687384;
  --line: #d8dee8;
  --panel: #ffffff;
  --panel-soft: #f5f7fa;
  --accent: #0f8b8d;
  --accent-strong: #0a686a;
  --danger: #c43d3d;
  --night: #10151d;
  --gold: #d9a441;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
}

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

.player-body {
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: #05070a;
}

.player-stage {
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: 100%;
}

.preview-mode {
  display: grid;
  place-items: center;
  padding: 24px;
  background: #d8dee8;
}

.preview-mode .player-stage {
  width: 5760px;
  height: 1080px;
  transform: scale(var(--preview-scale, 1));
  transform-origin: center;
  box-shadow: 0 18px 60px rgba(16, 21, 29, 0.36);
}

.player-zone,
.player-wide {
  position: relative;
  overflow: hidden;
  background: #080b10;
}

.player-zone + .player-zone {
  border-left: 2px solid rgba(255, 255, 255, 0.08);
}

.preview-mode .player-zone::after {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 5;
  padding: 6px 10px;
  border-radius: 5px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(0, 0, 0, 0.42);
  font-size: 28px;
  font-weight: 800;
  content: attr(data-zone);
}

.preview-mode .player-zone + .player-zone {
  border-left: 6px solid rgba(255, 255, 255, 0.78);
}

.preview-mode .player-wide::after {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 5;
  padding: 6px 10px;
  border-radius: 5px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(0, 0, 0, 0.42);
  font-size: 28px;
  font-weight: 800;
  content: "wide";
}

.player-wide {
  grid-column: 1 / 4;
  width: 100%;
  height: 100%;
}

.media-fill {
  width: 100%;
  height: 100%;
  display: block;
  border: 0;
  object-fit: cover;
  background: #05070a;
}

iframe.media-fill {
  object-fit: unset;
}

.missing-media {
  width: 100%;
  height: 100%;
  display: grid;
  place-content: center;
  gap: 18px;
  padding: 56px;
  text-align: center;
  color: #f7fafc;
  background:
    linear-gradient(135deg, rgba(15, 139, 141, 0.92), rgba(16, 21, 29, 0.96)),
    #10151d;
}

.missing-media p {
  margin: 0;
  font-size: 40px;
  letter-spacing: 0;
  color: rgba(255, 255, 255, 0.76);
}

.missing-media strong {
  max-width: 92vw;
  overflow-wrap: anywhere;
  font-size: 72px;
  line-height: 1.06;
  font-weight: 800;
}

.player-status {
  position: fixed;
  left: 18px;
  bottom: 14px;
  max-width: calc(100vw - 36px);
  padding: 8px 12px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(0, 0, 0, 0.42);
  font-size: 14px;
  pointer-events: none;
}

.player-status[data-state="warn"] {
  color: #ffe1a8;
}

.preload-bin {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.demo-screen {
  width: 100vw;
  height: 100vh;
  min-height: 100vh;
  display: grid;
  align-content: center;
  gap: 24px;
  margin: 0;
  padding: 84px;
  color: #f8fbff;
  background: #10151d;
}

.demo-screen p,
.demo-screen h1,
.demo-screen h2 {
  margin: 0;
}

.demo-screen p {
  font-size: 42px;
  color: rgba(255, 255, 255, 0.68);
}

.demo-screen h1 {
  max-width: 92vw;
  overflow-wrap: anywhere;
  font-size: 116px;
  line-height: 1;
  letter-spacing: 0;
}

.demo-screen h2 {
  font-size: 48px;
  line-height: 1.18;
  color: rgba(255, 255, 255, 0.78);
  letter-spacing: 0;
}

.demo-left {
  background: linear-gradient(120deg, #0f8b8d, #19323c);
}

.demo-center {
  text-align: center;
  background: linear-gradient(120deg, #10151d, #7a2538);
}

.demo-right {
  text-align: right;
  background: linear-gradient(120deg, #2d3748, #5f6f3d);
}

.demo-wide-page {
  place-content: center;
  text-align: center;
  background:
    linear-gradient(100deg, rgba(15, 139, 141, 0.95), rgba(122, 37, 56, 0.93), rgba(217, 164, 65, 0.9)),
    #10151d;
}

.demo-wide-page h1 {
  font-size: 136px;
}

.admin-body {
  min-height: 100vh;
  background: var(--panel-soft);
}

.admin-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
}

.admin-header h1,
.panel h2 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: 0;
}

.admin-header h1 {
  font-size: 24px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.admin-actions,
.segmented-actions,
.item-actions,
.table-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-shell {
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(0, 1fr);
  gap: 18px;
  width: min(1680px, calc(100vw - 32px));
  margin: 18px auto 40px;
  align-items: start;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 8px 24px rgba(16, 21, 29, 0.06);
}

.upload-panel,
.playlist-panel,
.json-panel {
  padding: 18px;
}

.json-panel {
  grid-column: 1 / 3;
}

.panel-title-row,
.playlist-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}

.count-badge {
  min-width: 36px;
  padding: 5px 10px;
  border-radius: 999px;
  color: #fff;
  background: var(--accent);
  text-align: center;
  font-weight: 700;
}

.button,
.icon-button {
  min-height: 38px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0 14px;
  cursor: pointer;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  color: #fff;
  background: var(--accent);
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button.secondary,
.icon-button {
  color: var(--ink);
  border-color: var(--line);
  background: #fff;
}

.button.danger {
  color: #fff;
  background: var(--danger);
}

.button.tiny,
.icon-button {
  min-height: 30px;
  padding: 0 9px;
  font-size: 12px;
}

.upload-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-top: 18px;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
}

input,
select {
  min-height: 38px;
  padding: 0 10px;
}

textarea {
  min-height: 300px;
  padding: 12px;
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
}

.asset-list-wrap {
  max-height: 62vh;
  overflow: auto;
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.asset-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.asset-table th,
.asset-table td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.asset-table th {
  position: sticky;
  top: 0;
  background: #f9fafb;
  z-index: 1;
}

.asset-thumb {
  width: 74px;
  height: 44px;
  display: block;
  border-radius: 4px;
  object-fit: cover;
  background: #111827;
}

code {
  overflow-wrap: anywhere;
  font-size: 12px;
}

.muted {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.playlist-editor {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.validation-errors {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(196, 61, 61, 0.32);
  border-radius: 8px;
  color: #7f1d1d;
  background: #fff1f1;
}

.validation-errors strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
}

.validation-errors ul {
  display: grid;
  gap: 6px;
  margin: 0;
  padding-left: 18px;
}

.validation-errors li {
  overflow-wrap: anywhere;
  font-size: 13px;
  line-height: 1.45;
}

.playlist-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: #fff;
}

.item-title {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-width: min(460px, 100%);
}

.check-input {
  width: 18px;
  min-height: 18px;
}

.name-input {
  font-weight: 800;
}

.item-grid,
.source-grid,
.day-grid {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.item-grid {
  grid-template-columns: 1.1fr 0.7fr 0.8fr 0.8fr;
}

.source-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.source-grid label:only-child {
  grid-column: 1 / 4;
}

.day-grid {
  grid-template-columns: repeat(7, minmax(42px, 1fr)) minmax(140px, 1.3fr);
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
}

.day-grid legend {
  padding: 0 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.day-grid label {
  display: flex;
  align-items: center;
  gap: 6px;
}

.day-grid input {
  width: 16px;
  min-height: 16px;
}

.day-grid label span {
  margin: 0;
}

.day-grid small {
  color: var(--muted);
  font-size: 12px;
}

label span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.source-grid select {
  margin-top: 6px;
}

.mini-preview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  background: #10151d;
}

.mini-preview div {
  min-height: 64px;
  display: grid;
  place-items: center;
  padding: 10px;
  color: #fff;
  text-align: center;
  overflow-wrap: anywhere;
  font-size: 12px;
}

.mini-preview div + div {
  border-left: 1px solid rgba(255, 255, 255, 0.24);
}

.mini-preview.mini-wide {
  grid-template-columns: 1fr;
}

.empty-cell,
.empty-editor {
  padding: 28px;
  color: var(--muted);
  text-align: center;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: min(420px, calc(100vw - 36px));
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  padding: 12px 14px;
  border-radius: 8px;
  color: #fff;
  background: var(--night);
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast[data-state="error"] {
  background: var(--danger);
}

@media (max-width: 980px) {
  .admin-header,
  .panel-title-row,
  .playlist-item-header {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-shell,
  .json-panel {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .item-grid,
  .source-grid,
  .day-grid,
  .source-grid label:only-child {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

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