:root {
  color-scheme: light dark;
  --bg: #fdfdfc;
  --fg: #1b1b18;
  --muted: #6b6b63;
  --border: #e4e2dc;
  --accent: #0a5c36;
  --accent-fg: #ffffff;
  --warning-bg: #fff3cd;
  --warning-fg: #6b4e00;
  --error-bg: #fde2e1;
  --error-fg: #8c1d16;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16171a;
    --fg: #e9e9e4;
    --muted: #9a9a92;
    --border: #2c2d30;
    --accent: #5fcf96;
    --accent-fg: #0b1f14;
    --warning-bg: #3a3310;
    --warning-fg: #ffdf7e;
    --error-bg: #3a1715;
    --error-fg: #ff9d93;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--fg);
}

.site-header nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.site-header nav a {
  color: var(--muted);
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 4rem;
}

h1 {
  font-size: 1.6rem;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.05rem;
  margin: 1.75rem 0 0.5rem;
}

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

.flash {
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  background: var(--border);
  margin-bottom: 1.25rem;
  font-size: 0.95rem;
}

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

.flash-error {
  background: var(--error-bg);
  color: var(--error-fg);
}

.category-tabs {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

.category-tabs a {
  color: var(--muted);
  font-size: 0.95rem;
}

.category-tabs a.active {
  color: var(--fg);
  font-weight: 600;
}

.feed-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.feed-item {
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
}

.feed-item:first-child {
  padding-top: 0;
}

.feed-item-meta {
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.35rem;
}

.dot-sep {
  opacity: 0.6;
}

.unread-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.feed-item-title {
  font-size: 1.1rem;
  margin: 0.15rem 0 0.5rem;
}

.feed-item.unread .feed-item-title a {
  color: var(--fg);
  font-weight: 700;
}

.feed-item-title a {
  color: var(--fg);
}

details {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

details summary {
  cursor: pointer;
  color: var(--muted);
}

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.75rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.video-detail h1 {
  margin-top: 0.5rem;
}

.video-detail section {
  margin-top: 1.5rem;
}

.login-wrap {
  max-width: 320px;
  margin: 4rem auto 0;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

input[type="text"],
input[type="password"],
select {
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  font-size: 1rem;
}

button,
input[type="submit"] {
  padding: 0.55rem 1rem;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 0.95rem;
  cursor: pointer;
}

.link-button {
  background: none;
  border: none;
  color: var(--muted);
  padding: 0;
  font-size: 0.85rem;
  text-decoration: underline;
  cursor: pointer;
}

.inline-form {
  display: inline;
}

.check-now {
  margin-top: 1rem;
  display: block;
}

.channels-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-top: 1rem;
}

.channels-table th,
.channels-table td {
  text-align: left;
  padding: 0.55rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

.add-channel-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 420px;
}

.add-channel-form label {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

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

.empty {
  color: var(--muted);
  margin-top: 2rem;
}

/* Phones: each channel becomes a small card instead of a wide table row. */
@media (max-width: 600px) {
  .channels-table thead {
    display: none;
  }

  .channels-table,
  .channels-table tbody {
    display: block;
  }

  .channels-table tr {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.15rem 0.75rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--border);
  }

  .channels-table td {
    padding: 0;
    border: 0;
    color: var(--muted);
  }

  .channels-table td:first-child {
    order: -2;
    flex: 1 0 calc(100% - 5rem);
    font-weight: 600;
  }

  .channels-table td:last-child {
    order: -1;
    margin-left: auto;
  }

  .channels-table td:empty {
    display: none;
  }

  .channels-table td.flash-error {
    flex-basis: 100%;
  }
}