:root {
  --color-bg: #f7f7f9;
  --color-text: #1f1f1f;
  --color-muted: #6b6b6b;
  --color-accent: #3b5bfd;
  --color-card-bg: #ffffff;
  --color-border: #e3e3e8;
  --color-danger: #c0392b;
  --color-live: #d93025;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}

.app {
  max-width: 720px;
  margin: 1rem auto 4rem;
  padding: 0 1.5rem;
}

.app h1 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  text-align: center;
}

.description {
  margin: 0 0 2rem;
  color: var(--color-muted);
  font-size: 0.9rem;
  text-align: center;
}

.setup-block {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.field-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.field-row label {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.field-row input[type="text"],
.field-row input[type="password"],
.field-row select {
  padding: 0.6rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  font-size: 0.95rem;
  width: 100%;
}

.input-with-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.input-with-toggle input,
.input-with-toggle select {
  flex: 1;
}

.input-with-toggle input[type="range"] {
  width: auto;
}

.input-with-toggle span {
  min-width: 2ch;
  text-align: right;
  color: var(--color-muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
}

.checkbox-row label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
  font-size: 0.9rem;
}

.hint {
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.hint a {
  color: var(--color-accent);
}

.channel-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.channel-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  font-size: 0.9rem;
}

.channel-row .channel-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.channel-row .channel-name.pending {
  color: var(--color-muted);
}

.channel-row .channel-name.error {
  color: var(--color-danger);
}

.channel-row .remove-btn {
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1;
  cursor: pointer;
}

.channel-row .remove-btn:hover {
  background: #fde8e8;
  color: #c0392b;
  border-color: #f3b8b8;
}

.channel-empty-hint {
  color: var(--color-muted);
  font-size: 0.85rem;
  padding: 0.5rem 0;
  margin: 0 0 1rem;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  font-size: 0.95rem;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  background: #f0f0f4;
}

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

.btn-primary:hover {
  background: #2f4bd9;
}

.btn-small {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
}

.status {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  margin: 0 0 1rem;
}

.error-message {
  margin: 0 0 1.5rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: #fdecea;
  color: var(--color-danger);
  font-size: 0.9rem;
  text-align: center;
}

.stream-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stream-card {
  display: flex;
  gap: 1rem;
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1rem;
  text-decoration: none;
  color: inherit;
}

.stream-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.stream-card .thumb {
  flex-shrink: 0;
  width: 160px;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  background: #eee;
}

.stream-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.stream-card .stream-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.stream-card .badge {
  align-self: flex-start;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-accent);
}

.stream-card .badge.live {
  background: var(--color-live);
}

.stream-card .stream-channel {
  margin: 0;
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.stream-card .stream-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.stream-card .stream-time {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.empty-hint {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  padding: 2rem 0;
}