:root {
    --bg: #0d0f14;
    --panel: #151822;
    --panel-alt: #1b1f2b;
    --border: #262b3a;
    --text: #e6e8ee;
    --text-dim: #8b92a5;
    --accent: #ff0000;
    --accent-dim: #4d1414;
    --danger: #ff4d4d;
    --radius: 8px;
}

* { box-sizing: border-box; }

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

/* ---------- Scrollbars ---------- */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--accent-dim) var(--panel-alt);
}
*::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
*::-webkit-scrollbar-track {
    background: var(--panel-alt);
}
*::-webkit-scrollbar-thumb {
    background: var(--accent-dim);
    border-radius: 999px;
    border: 2px solid var(--panel-alt);
}
*::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ---------- Login ---------- */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.login-box {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 320px;
    text-align: center;
}
.login-box h1 {
    margin: 0 0 1.5rem;
    font-size: 1.4rem;
    letter-spacing: 0.05em;
    color: var(--accent);
}
.login-box form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.login-box input[type="password"] {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.7rem 0.9rem;
    color: var(--text);
    font-size: 1rem;
}
.login-box button {
    background: var(--accent);
    border: none;
    border-radius: var(--radius);
    padding: 0.7rem;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
}
.login-box button:hover { filter: brightness(1.1); }
.login-error { color: var(--danger); font-size: 0.85rem; margin: 0; }

/* ---------- Top bar ---------- */
.page {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.topbar-brand {
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--accent);
    vertical-align: middle;
}
.topbar-brand img {
    height: 30px;
}
.topbar-controls {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}
.switch-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-dim);
    cursor: pointer;
    user-select: none;
}
.switch-label input { position: absolute; opacity: 0; width: 0; height: 0; }
.switch {
    position: relative;
    width: 34px;
    height: 19px;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: 999px;
    transition: background 0.15s ease;
    flex-shrink: 0;
}
.switch::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--text-dim);
    transition: transform 0.15s ease, background 0.15s ease;
}
.switch-label input:checked + .switch { background: var(--accent-dim); border-color: var(--accent); }
.switch-label input:checked + .switch::after { transform: translateX(15px); background: var(--accent); }
.switch-text { color: var(--text); }

.topbar-field {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.topbar-icon {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1;
}

.topbar-select {
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-size: 0.8rem;
    padding: 0.35rem 0.5rem;
}
.topbar-select:disabled { opacity: 0.5; cursor: not-allowed; }

.topbar-logout {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.82rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.35rem 0.7rem;
}
.topbar-logout:hover { color: var(--text); border-color: var(--accent); }

/* ---------- App layout ---------- */
.app {
    display: grid;
    grid-template-columns: 280px 340px 1fr;
    flex: 1;
    min-height: 0;
    width: 100vw;
    overflow: hidden;
}

.mobile-tabs { display: none; }

.col {
    display: flex;
    flex-direction: column;
    min-height: 0;
    border-right: 1px solid var(--border);
    background: var(--panel);
}
.col-player { border-right: none; background: #000; }

.col-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.7rem 0.8rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-dim);
    flex-shrink: 0;
}
#channel-search {
    width: 100%;
    background: var(--panel-alt);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 0.7rem;
    color: var(--text);
    font-size: 0.9rem;
}
#epg-channel-name { font-weight: 600; color: var(--text); }

.epg-header { justify-content: space-between; }
.epg-header-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-width: 0;
    flex: 1;
}
.epg-header-title #epg-channel-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}
.epg-header-title #epg-date { font-size: 0.72rem; }
.epg-header .ctrl-btn { flex-shrink: 0; }
.epg-header .ctrl-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.epg-header .ctrl-btn:disabled:hover { background: rgba(255,255,255,0.08); }

.col-epg { position: relative; }
.epg-loading-overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(13,15,20,0.6);
    z-index: 1;
}
.epg-loading-overlay.visible { display: flex; }
.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Channel list ---------- */
.channel-list, .epg-list {
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}
.category-group { border-bottom: 1px solid var(--border); }
.category-title {
    padding: 0.5rem 0.8rem;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    cursor: pointer;
    user-select: none;
    background: var(--panel-alt);
    position: sticky;
    top: 0;
}
.channel-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.8rem;
    cursor: pointer;
    border-left: 3px solid transparent;
}
.channel-item:hover { background: var(--panel-alt); }
.channel-item.active {
    background: var(--accent-dim);
    border-left-color: var(--accent);
}
.channel-item img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    background: #fff1;
    border-radius: 4px;
    flex-shrink: 0;
}
.channel-meta { min-width: 0; flex: 1; }
.fav-star {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    padding: 0.2rem;
    flex-shrink: 0;
}
.fav-star.active { color: #f5c518; }
.fav-star:hover { color: #f5c518; }
.category-title.favorites-title { color: #f5c518; }
.channel-name {
    font-size: 0.88rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.channel-now {
    font-size: 0.72rem;
    color: var(--text-dim);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.loading { padding: 1rem; color: var(--text-dim); font-size: 0.85rem; }

/* ---------- EPG list ---------- */
.epg-item {
    padding: 0.6rem 0.8rem;
    cursor: pointer;
    border-left: 3px solid transparent;
    border-bottom: 1px solid var(--border);
}
.epg-item:hover { background: var(--panel-alt); }
.epg-item.now, .epg-item.playing {
    background: var(--accent-dim);
    border-left-color: var(--accent);
}
.epg-item.playing:not(.now)::after {
    content: '▶ Playing';
    display: block;
    margin-top: 0.3rem;
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--accent);
}
.epg-item.disabled {
    cursor: not-allowed;
    opacity: 0.45;
}
.epg-item.disabled:hover { background: none; }
.epg-item.filler .epg-title {
    color: var(--text-dim);
    font-style: italic;
}
.epg-time {
    font-size: 0.72rem;
    color: var(--text-dim);
}
.epg-title {
    font-size: 0.88rem;
    margin-top: 0.1rem;
}
.epg-desc {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---------- Player ---------- */
.col-player { position: relative; justify-content: center; }
.player-wrap {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}
#video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #000;
}
.player-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: 0.9rem 1.1rem;
    background: linear-gradient(180deg, rgba(0,0,0,0.7), transparent);
    pointer-events: none;
}
.now-title { font-size: 1rem; font-weight: 600; }
.now-time { font-size: 0.78rem; color: var(--text-dim); }

.unmute-overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.35);
    cursor: pointer;
    z-index: 2;
}
.unmute-overlay.visible { display: flex; }
.unmute-box {
    background: rgba(20,22,30,0.9);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.7rem 1.3rem;
    font-size: 0.9rem;
}

.time-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    white-space: nowrap;
    flex-shrink: 0;
}

.controls {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.9rem;
    background: linear-gradient(0deg, rgba(0,0,0,0.85), transparent);
    opacity: 0;
    transition: opacity 0.2s ease;
}
.player-wrap:hover .controls,
.player-wrap.controls-visible .controls { opacity: 1; }

.ctrl-btn {
    background: rgba(255,255,255,0.08);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 0.35rem 0.6rem;
    cursor: pointer;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.ctrl-btn:hover { background: rgba(255,255,255,0.18); }
.ctrl-btn.live-active { color: var(--danger); border-color: var(--danger); }

.seek { flex: 1; accent-color: var(--accent); }
.volume { width: 80px; accent-color: var(--accent); }

.player-status {
    position: absolute;
    bottom: 0.5rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--text-dim);
    pointer-events: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .mobile-tabs {
        display: flex;
        align-items: center;
        border-bottom: 1px solid var(--border);
        background: var(--panel);
        flex-shrink: 0;
    }
    .tab-btn {
        flex: 1;
        background: none;
        border: none;
        color: var(--text-dim);
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
        cursor: pointer;
        border-bottom: 2px solid transparent;
    }
    .tab-btn.active { color: var(--text); border-bottom-color: var(--accent); }

    .topbar-brand { display: none; }

    .app {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: 100vh;
    }
    .col { border-right: none; border-bottom: 1px solid var(--border); display: none; }
    .col.panel-active { display: flex; }
    .col-player.panel-active { height: 100%; }
}

@media (min-width: 901px) {
    .app { grid-template-rows: 1fr; }
}

@media (max-width: 1200px) and (min-width: 901px) {
    .app { grid-template-columns: 220px 280px 1fr; }
}