:root {
  --bg: #0f0f0f;
  --surface: #1a1a1a;
  --surface2: #252525;
  --border: #333;
  --text: #f1f1f1;
  --text-muted: #aaa;
  --primary: #ff0000;
  --primary-hover: #cc0000;
  --accent: #3ea6ff;
  --success: #2ecc71;
  --error: #e74c3c;
  --radius: 8px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Segoe UI", "Hiragino Sans", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header h1 { font-size: 1.25rem; }

.header-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.header-home-link {
  color: var(--text-muted);
  font-size: 0.8rem;
  text-decoration: none;
}

.header-home-link:hover { color: var(--accent); }

.header-actions { display: flex; gap: 0.75rem; align-items: center; }

.home-page .home-hero {
  margin-bottom: 1.25rem;
}

.home-eyebrow {
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.home-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.home-lead {
  color: var(--text-muted);
  max-width: 52rem;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  min-height: 220px;
}

.service-card-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.service-card-title {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.service-card-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex: 1;
  margin-bottom: 1rem;
}

.service-card-btn { align-self: flex-start; }

.service-card-disabled {
  opacity: 0.65;
}

.service-card-soon {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  background: var(--surface2);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.home-build { margin-top: 1rem; }

.page-build { margin-top: 1.5rem; text-align: right; }

.login-gate {
  text-align: center;
  padding: 2rem 1.5rem;
}

.login-gate .btn {
  margin-top: 1rem;
}

.channel-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.channel-banner-main {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.channel-thumb {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
}

.channel-banner-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.channel-banner-title {
  font-size: 1.15rem;
  font-weight: 600;
}

.channel-switch {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.channel-banner-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
  min-width: 220px;
}

.channel-banner-actions .hint {
  text-align: right;
  max-width: 280px;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.2s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--surface2); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }

.badge {
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
}
.badge-ok { background: #1a3a2a; color: var(--success); }

.controls .control-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 0.75rem;
}

.controls label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.controls select,
.controls input[type="date"],
.controls input[type="text"] {
  padding: 0.5rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tab {
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
}

.tab.active {
  background: var(--surface2);
  color: var(--text);
  border-bottom-color: var(--surface2);
}

.panel { display: none; }
.panel.active { display: block; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.stat-card {
  background: var(--surface2);
  border-radius: var(--radius);
  padding: 1rem;
  text-align: center;
}

.stat-card .value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-card .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

th {
  background: var(--surface2);
  color: var(--text-muted);
  position: sticky;
  top: 0;
}

tr:hover td { background: var(--surface2); }

.video-table .video-title {
  white-space: normal;
  min-width: 220px;
  max-width: 360px;
}

.video-table .video-title a {
  color: var(--accent);
  text-decoration: none;
}

.video-table .video-title a:hover {
  text-decoration: underline;
}

.video-type-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.video-type-tab {
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface2);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.9rem;
}

.video-type-tab:hover {
  color: var(--text);
  border-color: var(--accent);
}

.video-type-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.loading, .error {
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  text-align: center;
}

.loading { background: #1a2a3a; color: var(--accent); }
.notice {
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  text-align: center;
  background: #3a2a10;
  color: #ffd966;
  border: 1px solid #8a6a20;
}
.error { background: #3a1a1a; color: var(--error); }
.hidden { display: none !important; }

.setup-steps { padding-left: 1.5rem; }
.setup-steps li { margin-bottom: 0.5rem; }
.setup-steps code {
  background: var(--surface2);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}

.meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

.meta-grid pre {
  font-size: 0.75rem;
  background: var(--surface2);
  padding: 0.75rem;
  border-radius: var(--radius);
  overflow-x: auto;
  max-height: 300px;
}

.hint { font-size: 0.85rem; color: var(--text-muted); margin-top: 0.5rem; }

.section-title {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

.main-tabs {
  margin-bottom: 0;
}

.tab-badge {
  display: inline-block;
  min-width: 1.25rem;
  padding: 0.1rem 0.4rem;
  margin-left: 0.35rem;
  border-radius: 999px;
  background: var(--error);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  vertical-align: middle;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.tracker-due-banner {
  background: #3a2a10;
  border: 1px solid #8a6a20;
  color: #ffd966;
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.tracker-due-list {
  margin: 0.5rem 0 0 1.25rem;
  font-size: 0.9rem;
}

.tracker-form-card .control-row input[type="text"] {
  padding: 0.5rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
}

.tracker-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.tracker-filters {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.tracker-filters select {
  padding: 0.4rem 0.6rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
}

.tracker-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.tracker-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
}

.tracker-card-due {
  border-color: #8a6a20;
  box-shadow: 0 0 0 1px rgba(255, 217, 102, 0.15);
}

.tracker-card-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.tracker-card-title a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.tracker-card-title a:hover {
  text-decoration: underline;
}

.tracker-card-badges {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.tracker-badge {
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.tracker-badge.badge-due {
  background: #3a2a10;
  border-color: #8a6a20;
  color: #ffd966;
}

.tracker-badge.status-watching { color: var(--accent); }
.tracker-badge.status-checked { color: var(--success); }
.tracker-badge.status-done { color: var(--text-muted); }

.tracker-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.tracker-memo {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  padding: 0.5rem 0.75rem;
  background: var(--surface);
  border-radius: var(--radius);
}

.tracker-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.tracker-metric-block {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  background: var(--surface);
  border-radius: var(--radius);
}

.tracker-metric-block.muted {
  color: var(--text-muted);
}

.tracker-metric-block .label {
  font-weight: 600;
  color: var(--text-muted);
  width: 100%;
}

.tracker-metric-block .delta {
  color: var(--accent);
  font-size: 0.8rem;
}

.tracker-verdict {
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  background: var(--surface);
}

.tracker-verdict.verdict-improved {
  background: #1a3a2a;
  color: var(--success);
}

.tracker-verdict.verdict-worse {
  background: #3a1a1a;
  color: var(--error);
}

.tracker-verdict.verdict-flat {
  color: var(--text-muted);
}

.tracker-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.settings-card h2 { margin-bottom: 0.75rem; font-size: 1rem; }

.footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

canvas { max-height: 400px; }

@media (max-width: 768px) {
  .controls .control-row { flex-direction: column; }
  .meta-grid { grid-template-columns: 1fr; }
}