/* Master display: dedicated big-screen UI that owns the audio output for a room.
 * In Phase 3 this same page is loaded inside an Electron window; the audio
 * device picker below is a faked stand-in for the real OS device enumerator.
 *
 * Visual language mirrors the kiosk: flat panels, sharp corners, single accent.
 */

:root {
    --bg-0: #07080b;
    --bg-1: #0e1116;
    --bg-2: #161a22;
    --bg-3: #1f242e;
    --fg: #e9ecf2;
    --muted: #8a90a0;
    --muted-2: #5d6373;
    --line: #262b36;
    --accent: #ff7a3d;
    --accent-2: #ffb37a;
    --accent-glow: rgba(255, 122, 61, 0.35);
    --ok: #4ec9a6;
    --warn: #ffd166;
    --err: #ec6a6a;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    background:
        radial-gradient(1200px 600px at 30% -10%, rgba(255, 122, 61, 0.06), transparent 60%),
        var(--bg-0);
    color: var(--fg);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
    overflow: hidden;
}

#app {
    height: 100%;
    width: 100%;
}

.login {
    display: grid;
    place-items: center;
    height: 100%;
}

.login form {
    display: grid;
    gap: 8px;
    padding: 24px;
    background: var(--bg-1);
    border: 1px solid var(--line);
    min-width: 280px;
}

.login input,
.login button {
    padding: 10px 12px;
    background: var(--bg-2);
    color: var(--fg);
    border: 1px solid var(--line);
    font-size: 14px;
}

.login button {
    background: var(--accent);
    color: #1a0a00;
    font-weight: 700;
    cursor: pointer;
    border-color: var(--accent);
}

.login .err {
    color: var(--err);
    font-size: 12px;
    min-height: 1em;
}

/* ---------- Master shell ----------
 *  Top bar  |  now-playing (height = cover art) |  stations grid (rest, horizontal scroll)
 */
.master {
    display: grid;
    grid-template-rows: 56px auto 1fr;
    height: 100%;
    gap: 0;
}

.master .topbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 18px;
    border-bottom: 1px solid var(--line);
    background: var(--bg-1);
    font-size: 13px;
}

.master .topbar h1 {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .06em;
}

.master .topbar .grow {
    flex: 1;
}

.master .topbar .pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    height: 32px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    font-size: 12px;
}

.master .topbar select,
.master .topbar input,
.master .topbar button {
    background: var(--bg-2);
    color: var(--fg);
    border: 1px solid var(--line);
    height: 32px;
    padding: 0 12px;
    font-size: 12px;
}

.master .topbar button {
    cursor: pointer;
}

.master .topbar .peers {
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.master .topbar .status-on {
    color: var(--ok);
}

.master .topbar .status-off {
    color: var(--muted-2);
}

/* ---------- Stage: now-playing block ---------- */
.master .stage {
    padding: 12px 16px 8px;
    overflow: hidden;
    min-height: 0;
}

/* Block height is dictated by the square cover art — the meta column simply
 * fills the same height. */
.master .np {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    align-items: stretch;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
        var(--bg-1);
    border: 1px solid var(--line);
    padding: 14px;
    position: relative;
    overflow: hidden;
}

.master .np::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(600px 220px at 0% 0%, var(--accent-glow), transparent 70%);
    opacity: 0.35;
    pointer-events: none;
}

.master .np > * {
    position: relative;
}

.master .np .art {
    height: clamp(180px, 28vh, 300px);
    aspect-ratio: 1 / 1;
    width: auto;
    background: var(--bg-2);
    background-size: cover;
    background-position: center;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .6);
    border: 1px solid var(--line);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.master .np .art .art-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.master .np .art.empty::after {
    content: "♪";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 64px;
    color: var(--muted-2);
}

.master .np .meta {
    display: grid;
    gap: 6px;
    align-content: center;
    min-width: 0;
}

.master .np .meta .tiny {
    color: var(--muted-2);
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: 10px;
}

.master .np .meta h2 {
    margin: 0;
    font-size: clamp(20px, 2.4vw, 34px);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -.01em;
}

.master .np .meta .genres {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.master .np .meta .tag {
    padding: 3px 10px;
    background: rgba(255, 179, 122, 0.10);
    color: var(--accent-2);
    border: 1px solid rgba(255, 179, 122, 0.18);
    font-size: 12px;
}

.master .np .meta .stats {
    display: flex;
    gap: 16px;
    color: var(--muted);
    font-size: 13px;
}

.master .np .meta .stats b {
    color: var(--fg);
}

/* ---------- Transport (embedded in now-playing) ---------- */
.master .np .transport {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 2px;
}

.master .ctrl {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    background: var(--bg-2);
    border: 1px solid var(--line);
    color: var(--fg);
    font-size: 15px;
    cursor: pointer;
    transition: background 120ms, border-color 120ms, transform 80ms;
}

.master .ctrl:hover:not(:disabled) {
    background: var(--bg-3);
    border-color: var(--accent);
}

.master .ctrl:active:not(:disabled) {
    transform: scale(0.96);
}

.master .ctrl:disabled {
    opacity: 0.35;
    cursor: default;
}

.master .ctrl.primary {
    width: 46px;
    height: 46px;
    background: var(--accent);
    border-color: var(--accent);
    color: #1a0a00;
    font-size: 18px;
    font-weight: 900;
    box-shadow: 0 6px 20px var(--accent-glow);
}

.master .ctrl.primary:hover:not(:disabled) {
    background: #ff8a55;
    border-color: #ff8a55;
}

.master .vol {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 12px;
    flex: 1;
    max-width: 320px;
}

.master .vol .vol-icon {
    font-size: 14px;
}

.master .vol input[type=range] {
    flex: 1;
    accent-color: var(--accent);
}

.master .vol .val {
    width: 36px;
    text-align: right;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

/* ---------- Peers line inside meta ---------- */
.master .np .peer-line {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-size: 12px;
    margin-top: 4px;
}

.master .np .peer-line-label {
    color: var(--muted-2);
    text-transform: uppercase;
    letter-spacing: .1em;
    font-size: 10px;
}

.master .peer {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.master .peer .role-tag {
    font-size: 10px;
    padding: 1px 6px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    text-transform: uppercase;
    letter-spacing: .08em;
}

.master .peer.role-display .role-tag {
    color: var(--accent-2);
    border-color: rgba(255, 122, 61, 0.4);
}

/* ---------- Bottom stations bar (two rows of tiles) ---------- */
.master .stations-bar {
    padding: 0 24px 20px;
    overflow: hidden;
    min-height: 0;
}

.master .err-banner {
    background: rgba(236, 106, 106, 0.12);
    border: 1px solid rgba(236, 106, 106, 0.4);
    color: var(--err);
    padding: 4px 10px;
    font-size: 12px;
    margin-left: 12px;
}

/* ---------- Cover art now-playing extras ---------- */
.master .np .meta .title-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.master .np .meta .title-row h2 {
    margin: 0;
    flex: 1;
    min-width: 0;
    word-break: break-word;
}

.master .np .meta .fav-toggle {
    width: 40px;
    height: 40px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    transition: background 120ms, color 120ms, border-color 120ms;
}

.master .np .meta .fav-toggle:hover {
    border-color: var(--accent);
    color: var(--accent-2);
}

.master .np .meta .fav-toggle.on {
    background: linear-gradient(180deg, rgba(255, 122, 61, 0.25), rgba(255, 122, 61, 0.12));
    border-color: rgba(255, 122, 61, 0.5);
    color: var(--accent);
    text-shadow: 0 0 12px var(--accent-glow);
}

/* ---------- Output picker (hidden behind button) ---------- */
.master .topbar .out-btn {
    cursor: pointer;
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.master .topbar .out-btn.active {
    border-color: var(--accent);
    color: var(--accent-2);
}

.out-popover-wrap {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: grid;
    place-items: start center;
    padding-top: 64px;
    z-index: 50;
    backdrop-filter: blur(4px);
}

.out-popover {
    width: min(440px, 92vw);
    max-height: 70vh;
    overflow: auto;
    background: var(--bg-1);
    border: 1px solid var(--line);
    padding: 14px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.out-popover-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.out-popover-head h3 {
    flex: 1;
    margin: 0;
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .12em;
}

.out-popover .close {
    width: 32px;
    height: 32px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    color: var(--fg);
    font-size: 18px;
    cursor: pointer;
}

.out-popover .device-list {
    display: grid;
    gap: 6px;
}

.out-popover .device {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    cursor: pointer;
    font-size: 13px;
    color: var(--fg);
    text-align: left;
}

.out-popover .device:hover {
    border-color: var(--accent);
}

.out-popover .device.active {
    background: linear-gradient(180deg, rgba(255, 122, 61, 0.18), rgba(255, 122, 61, 0.08));
    border-color: rgba(255, 122, 61, 0.4);
    color: var(--accent-2);
}

.out-popover .device .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--muted-2);
    flex-shrink: 0;
}

.out-popover .device.active .dot {
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.out-popover .device .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.out-popover .device .kind {
    color: var(--muted-2);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .06em;
}

/* ---------- Favorites browser (bottom 2-row touch grid) ---------- */
.master .favs-card {
    background: var(--bg-1);
    border: 1px solid var(--line);
    padding: 10px 12px;
    height: 100%;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.master .favs-card .favs-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    flex-shrink: 0;
}

.master .favs-card .favs-header h3 {
    flex: 1;
    margin: 0;
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .12em;
    font-weight: 600;
}

.master .favs-card .genre-filter {
    background: var(--bg-2);
    color: var(--fg);
    border: 1px solid var(--line);
    padding: 4px 8px;
    font-size: 12px;
    max-width: 200px;
}

.master .favs-nav {
    width: 32px;
    height: 32px;
    display: grid;
    place-items: center;
    background: var(--bg-2);
    border: 1px solid var(--line);
    color: var(--fg);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    transition: background 120ms, border-color 120ms, transform 80ms;
}

.master .favs-nav:hover {
    background: var(--bg-3);
    border-color: var(--accent);
}

.master .favs-nav:active {
    transform: scale(0.94);
}

/* Two-row horizontal-scrolling grid of square tiles. Tile height = half the
 * container height; aspect-ratio 1/1 makes them visually square. */
.master .favs-grid {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    align-content: flex-start;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 8px;
    padding: 2px 2px 8px;
    scroll-snap-type: x proximity;
    scrollbar-gutter: stable;
    cursor: grab;
    user-select: none;
    scroll-behavior: smooth;
}

.master .favs-grid.dragging {
    cursor: grabbing;
    scroll-behavior: auto;
}

.master .favs-grid.dragging .fav-tile {
    pointer-events: none;
}

.master .favs-grid::-webkit-scrollbar {
    height: 10px;
}

.master .fav-tile {
    display: grid;
    grid-template-rows: 1fr auto;
    gap: 6px;
    padding: 6px;
    background: var(--bg-2);
    border: 1px solid var(--line);
    color: var(--fg);
    cursor: pointer;
    text-align: left;
    transition: transform 80ms ease, border-color 120ms, background 120ms;
    height: calc((100% - 8px) / 2);
    aspect-ratio: 1 / 1;
    flex-shrink: 0;
    scroll-snap-align: start;
    min-height: 0;
}

.master .fav-tile:hover {
    border-color: var(--accent);
    background: var(--bg-3);
}

.master .fav-tile:active {
    transform: scale(0.97);
}

.master .fav-tile.active {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent) inset, 0 0 16px var(--accent-glow);
}

.master .fav-art {
    width: 100%;
    min-height: 0;
    background: var(--bg-1) center/cover no-repeat;
    position: relative;
    aspect-ratio: 1 / 1;
    justify-self: center;
    max-height: 100%;
}

.master .fav-art.empty::after {
    content: "♪";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: var(--muted-2);
    font-size: 28px;
}

.master .fav-name {
    font-size: 12px;
    line-height: 1.2;
    color: var(--fg);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.master .favs-empty {
    color: var(--muted);
    font-size: 12px;
    padding: 12px 4px;
    text-align: center;
    width: 100%;