:root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel-2: #1e222b;
    --border: #2a2f3a;
    --text: #e6e8ee;
    --muted: #9aa3b2;
    --accent: #3b82f6;
    --accent-soft: #1e3a5f;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

#app { height: 100%; }

.layout {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1rem;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
}

.topbar .brand { font-size: 1.05rem; }
.topbar .brand strong { color: var(--accent); }
.topbar .tagline { color: var(--muted); font-size: 0.85rem; }

.layout-body { flex: 1; min-height: 0; }

.player-page {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0;
    height: 100%;
}

.sidebar {
    background: var(--panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 0.75rem;
}

.search {
    width: 100%;
    padding: 0.55rem 0.7rem;
    margin-bottom: 0.6rem;
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.9rem;
}

.search:focus { outline: none; border-color: var(--accent); }

.groups { display: flex; flex-direction: column; gap: 0.25rem; }

.groups button {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    width: 100%;
    padding: 0.5rem 0.6rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    color: var(--text);
    cursor: pointer;
    font-size: 0.9rem;
}

.groups button:hover { background: var(--panel-2); }
.groups button.active { background: var(--accent-soft); border-color: var(--accent); }

.groups .count { color: var(--muted); font-size: 0.78rem; }

.main {
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 1rem;
    gap: 1rem;
    overflow-y: auto;
}

.player-wrap {
    background: #000;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.player-wrap video {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    max-height: 58vh;
    background: #000;
    display: block;
    object-fit: contain;
}

.now-playing {
    padding: 0.5rem 0.9rem;
    background: var(--panel-2);
    color: var(--text);
    font-size: 0.9rem;
    border-top: 1px solid var(--border);
}

.channels {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 0.5rem;
}

.channel {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    padding: 0.55rem 0.7rem;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    cursor: pointer;
    text-align: left;
    transition: border-color .12s, background .12s;
}

.channel:hover { border-color: var(--accent); }
.channel.active { background: var(--accent-soft); border-color: var(--accent); }

.channel-name { font-size: 0.9rem; }
.channel-group { font-size: 0.72rem; color: var(--muted); }

.empty { color: var(--muted); padding: 1rem; }

#blazor-error-ui {
    background: #3b1d1d;
    color: #ffd7d7;
    padding: 0.6rem 1rem;
    position: fixed;
    bottom: 0;
    width: 100%;
    display: none;
}

#blazor-error-ui a { color: #ffd7d7; margin-left: 1rem; }

@media (max-width: 720px) {
    .player-page { grid-template-columns: 1fr; }
    .sidebar { border-right: none; border-bottom: 1px solid var(--border); max-height: 40vh; }
}