/*
 * Styles for the lightweight Sinatra web UI.
 * This file keeps layout, status, and player presentation separate from the ERB templates and browser controller.
 */

:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  --bg: #f3f5f7;
  --surface: #ffffff;
  --surface-alt: #eef2f5;
  --border: #c8d1da;
  --text: #15202b;
  --muted: #51606f;
  --focus: #005fcc;
  --danger: #b23a2b;
  --danger-bg: #fce7e5;
  --warning: #735c00;
  --warning-bg: #fff4c7;
  --info: #2c5aa0;
  --info-bg: #e8f0fb;
  --success: #256045;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
}

button,
select,
textarea,
input[type="range"] {
  font: inherit;
}

button,
select,
textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
}

button {
  min-height: 2.75rem;
  padding: 0 1rem;
  cursor: pointer;
}

button:hover {
  background: var(--surface-alt);
}

button:focus-visible,
select:focus-visible,
textarea:focus-visible,
input[type="range"]:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

textarea,
select {
  width: 100%;
  padding: 0.75rem;
}

.shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar__inner {
  min-height: 3.75rem;
  display: flex;
  align-items: center;
}

.brand {
  font-weight: 700;
  text-decoration: none;
}

.page-shell {
  padding: 1.5rem 0 3rem;
}

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

.page-section {
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  margin-bottom: 1rem;
}

.page-section--tight {
  padding-bottom: 0.75rem;
}

.section-header h1,
.section-header h2,
.section-header h3 {
  margin: 0;
}

.breadcrumbs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  color: var(--muted);
}

.field {
  display: grid;
  gap: 0.4rem;
}

.form-actions,
.button-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.magnet-form,
.selection-form {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

.banner {
  border-radius: 6px;
  padding: 0.75rem 1rem;
  margin-top: 1rem;
}

.banner--error {
  background: var(--danger-bg);
  color: var(--danger);
}

.banner--info {
  background: var(--info-bg);
  color: var(--info);
}

.banner--warning {
  background: var(--warning-bg);
  color: var(--warning);
}

.empty-state {
  color: var(--muted);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.data-table th,
.data-table td {
  padding: 0.75rem 0.5rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.table-link {
  text-decoration: none;
  font-weight: 600;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  padding: 0 0.625rem;
  border-radius: 999px;
  background: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0.75rem 0 0;
}

.stats-grid div {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
}

.stats-grid dt {
  color: var(--muted);
  font-size: 0.9rem;
}

.stats-grid dd {
  margin: 0.25rem 0 0;
  font-weight: 600;
}

.message-list,
.compact-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.message-list {
  display: grid;
  gap: 0.75rem;
}

.message-list__item {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  background: var(--surface-alt);
}

.message-list__item--error {
  border-color: #e3a39b;
  background: var(--danger-bg);
}

.message-list__item--warning {
  border-color: #ddc862;
  background: var(--warning-bg);
}

.message-list__item p {
  margin: 0.25rem 0 0;
}

.message-list__action {
  color: var(--muted);
}

.compact-list {
  display: grid;
  gap: 0.625rem;
}

.compact-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid var(--border);
}

.compact-list__meta {
  color: var(--muted);
}

.track-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.player-section {
  display: grid;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}

.player-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #0f1720;
  border-radius: 8px;
  overflow: hidden;
}

.player-frame video {
  width: 100%;
  height: 100%;
  display: block;
  background: #0f1720;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  align-items: end;
}

.button-secondary {
  background: var(--surface-alt);
}

.timeline-block {
  display: grid;
  gap: 0.75rem;
}

.timeline-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
}

input[type="range"] {
  width: 100%;
  margin: 0;
}

code {
  overflow-wrap: anywhere;
}

@media (max-width: 860px) {
  .page-grid,
  .track-columns,
  .control-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .compact-list li {
    flex-direction: column;
    gap: 0.25rem;
  }

  .timeline-meta {
    flex-direction: column;
  }
}