/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:        #f5f5f5;
    --surface:   #ffffff;
    --border:    #e0e0e0;
    --text:      #1a1a1a;
    --text-dim:  #666;
    --accent:    #000000;
    --accent-fg: #ffffff;
    --online:    #22c55e;
    --offline:   #9ca3af;
    --radius:    8px;
    --shadow:    0 1px 3px rgba(0,0,0,.10), 0 1px 2px rgba(0,0,0,.06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg:       #111;
        --surface:  #1e1e1e;
        --border:   #333;
        --text:     #f0f0f0;
        --text-dim: #aaa;
        --accent:   #e0e0e0;
        --accent-fg:#111;
    }
}

html, body { height: 100%; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 15px;
    line-height: 1.5;
    background: var(--bg);
    color: var(--text);
}

a { color: inherit; text-decoration: none; cursor: pointer; }
button { cursor: pointer; font: inherit; border: none; background: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.app { display: flex; flex-direction: column; min-height: 100vh; }

/* ── Navbar ──────────────────────────────────────────────────────────────── */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    height: 52px;
    background: var(--accent);
    color: var(--accent-fg);
}

.brand { font-size: 1.1rem; font-weight: 600; letter-spacing: .02em; }

.nav-links { display: flex; align-items: center; gap: .75rem; }

.nav-links a, .nav-links .btn-icon {
    color: var(--accent-fg);
    opacity: .75;
    font-size: .9rem;
    padding: .25rem .5rem;
    border-radius: 4px;
    transition: opacity .15s;
}

.nav-links a:hover, .nav-links .btn-icon:hover, .nav-links a.active { opacity: 1; }

.nav-tunein-icon { height: 18px; display: inline-block; filter: brightness(0) invert(1); opacity: .75; }
.nav-links a:hover .nav-tunein-icon, .nav-links a.active .nav-tunein-icon { opacity: 1; }

/* ── Main content ─────────────────────────────────────────────────────────── */
.main-content { flex: 1; padding: 1.5rem 1.25rem; max-width: 960px; width: 100%; margin: 0 auto; }

/* ── Page header ──────────────────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.page-header h2 { font-size: 1.4rem; font-weight: 600; flex: 1; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn-primary {
    background: var(--accent);
    color: var(--accent-fg);
    padding: .45rem 1rem;
    border-radius: var(--radius);
    font-size: .875rem;
    font-weight: 500;
    transition: opacity .15s;
}
.btn-primary:hover { opacity: .85; }

.btn-secondary {
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    padding: .45rem 1rem;
    border-radius: var(--radius);
    font-size: .875rem;
    transition: background .15s;
}
.btn-secondary:hover { background: var(--bg); }

.btn-icon {
    color: inherit;
    font-size: 1.1rem;
    padding: .25rem .4rem;
    border-radius: 4px;
    line-height: 1;
    transition: opacity .15s;
}
.btn-icon:hover { opacity: .7; }

.back-btn {
    color: var(--text-dim);
    font-size: .875rem;
    padding: .3rem .6rem;
    border-radius: 4px;
    border: 1px solid var(--border);
    background: var(--surface);
}
.back-btn:hover { background: var(--bg); }

/* ── Device grid ─────────────────────────────────────────────────────────── */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.device-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    cursor: pointer;
    transition: box-shadow .15s, transform .1s;
    box-shadow: var(--shadow);
}
.device-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.12); transform: translateY(-1px); }

.device-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: .25rem; }
.device-name { font-weight: 600; font-size: .95rem; }
.device-type { font-size: .8rem; color: var(--text-dim); margin-bottom: .5rem; }

.device-indicator {
    width: 8px; height: 8px; border-radius: 50%;
    flex-shrink: 0;
}
.device-indicator.online  { background: var(--online); }
.device-indicator.offline { background: var(--offline); }

.now-playing-mini { font-size: .8rem; color: var(--text-dim); margin-top: .25rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.play-status { margin-right: .3rem; }
.standby-label { font-size: .8rem; color: var(--text-dim); margin-top: .25rem; }

/* ── Device detail ───────────────────────────────────────────────────────── */
.device-detail { max-width: 560px; }

/* ── Now playing ─────────────────────────────────────────────────────────── */
.now-playing {
    display: flex;
    gap: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin: 1rem 0;
    box-shadow: var(--shadow);
    min-height: 80px;
    align-items: center;
}
.now-playing.standby { color: var(--text-dim); font-size: .9rem; }

.album-art { width: 64px; height: 64px; border-radius: 4px; object-fit: cover; flex-shrink: 0; }

.track-info { flex: 1; overflow: hidden; }
.track-title  { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-artist { font-size: .875rem; color: var(--text-dim); margin-top: .15rem; }
.track-album  { font-size: .8rem; color: var(--text-dim); }
.track-meta { display: flex; align-items: center; gap: .5rem; margin-top: .25rem; }
.track-source { font-size: .75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .05em; }
.buffering-badge { font-size: .7rem; color: var(--text-dim); background: var(--bg); border-radius: 4px; padding: .1rem .35rem; }

/* ── Transport controls ──────────────────────────────────────────────────── */
.controls {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
}

.transport { display: flex; align-items: center; gap: .5rem; margin-bottom: .75rem; }

.ctrl-btn {
    font-size: 1.25rem;
    padding: .4rem .7rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    transition: background .12s;
}
.ctrl-btn:hover { background: var(--bg); }
.ctrl-btn.play-btn { font-size: 1.5rem; padding: .4rem .9rem; }
.ctrl-btn.active { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); }

.volume-row { display: flex; align-items: center; gap: .75rem; }
.volume-icon { font-size: 1rem; }
.volume-slider { flex: 1; accent-color: var(--accent); }
.volume-value { font-size: .8rem; color: var(--text-dim); min-width: 2.5ch; text-align: right; }

.bass-row { display: flex; align-items: center; gap: .75rem; margin-top: .5rem; }
.bass-label { font-size: .8rem; color: var(--text-dim); width: 2.5ch; }

/* ── Progress bar ────────────────────────────────────────────────────────── */
.progress-row { margin-top: .35rem; display: flex; align-items: center; gap: .5rem; }
.progress-bar {
    flex: 1;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    transition: width .9s linear;
}
.progress-time { font-size: .7rem; color: var(--text-dim); white-space: nowrap; flex-shrink: 0; }

/* ── Presets ─────────────────────────────────────────────────────────────── */
.presets-section, .sources-section { margin-top: 1.25rem; }
.section-title { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); margin-bottom: .6rem; }

.preset-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: .4rem;
}

.preset-slot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
    padding: .4rem .2rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    cursor: pointer;
    position: relative;
    transition: background .1s, box-shadow .1s;
    min-height: 72px;
}
.preset-slot:hover:not(:disabled) { background: var(--bg); box-shadow: var(--shadow); }
.preset-slot:disabled { opacity: .4; cursor: default; }
.preset-slot.active { border-color: var(--accent); background: var(--accent); color: var(--accent-fg); }
.preset-slot.active .preset-name { color: var(--accent-fg); }

.preset-art { width: 36px; height: 36px; border-radius: 4px; object-fit: cover; }
.preset-source-label { font-size: .6rem; font-weight: 600; text-transform: uppercase; opacity: .6; }
.preset-name { font-size: .65rem; text-align: center; line-height: 1.2; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; word-break: break-word; color: var(--text-dim); }
.preset-num {
    position: absolute; top: 2px; right: 4px;
    font-size: .6rem; font-weight: 700; color: var(--text-dim); opacity: .5;
}

/* ── Sources ─────────────────────────────────────────────────────────────── */
.source-list { display: flex; flex-wrap: wrap; gap: .4rem; }

.source-btn {
    display: flex;
    align-items: center;
    gap: .35rem;
    padding: .35rem .7rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    font-size: .8rem;
    transition: background .1s, border-color .1s;
}
.source-btn:hover { background: var(--bg); }
.source-btn.active { border-color: var(--accent); background: var(--accent); color: var(--accent-fg); }
.source-btn.local { border-style: dashed; }
.source-icon { font-size: .9rem; line-height: 1; }
.source-name { font-weight: 500; }

/* ── Zone ────────────────────────────────────────────────────────────────── */
.zone-section { margin-top: 1.25rem; }

.zone-row { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.zone-status-label { font-size: .875rem; color: var(--text-dim); }

.zone-members { display: flex; flex-direction: column; gap: .3rem; }
.zone-member {
    display: flex; align-items: center; gap: .6rem;
    padding: .4rem .6rem;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius);
}
.zone-master-row { background: var(--bg); }

.zone-badge {
    font-size: .65rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .05em; padding: .15rem .4rem; border-radius: 3px; flex-shrink: 0;
}
.zone-badge.master { background: var(--accent); color: var(--accent-fg); }
.zone-badge.slave  { background: var(--border); color: var(--text-dim); }

.zone-member-name { flex: 1; font-size: .875rem; }
.zone-remove { font-size: .75rem; color: var(--text-dim); padding: .15rem .35rem; }
.zone-remove:hover { color: var(--text); }

.zone-actions { display: flex; gap: .5rem; margin-top: .25rem; flex-wrap: wrap; }
.zone-btn { font-size: .8rem; padding: .3rem .7rem; }

/* ── Recents ─────────────────────────────────────────────────────────────── */
.recents-section { margin-top: 1.25rem; }

.recents-list { display: flex; flex-direction: column; gap: 1px; }

.recent-item {
    display: flex;
    align-items: center;
    gap: .75rem;
    width: 100%;
    padding: .5rem .6rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: left;
    color: var(--text);
    transition: background .1s;
}
.recent-item:hover { background: var(--bg); }

.recent-art {
    width: 40px; height: 40px; border-radius: 4px;
    object-fit: cover; flex-shrink: 0;
}
.recent-art-empty {
    display: flex; align-items: center; justify-content: center;
    background: var(--bg); font-size: 1.1rem;
}
.recent-info { flex: 1; overflow: hidden; }
.recent-name { display: block; font-size: .875rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.recent-source { display: block; font-size: .75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: .05em; margin-top: .1rem; }
.recent-play { color: var(--text-dim); font-size: .75rem; flex-shrink: 0; opacity: .5; }
.recent-item:hover .recent-play { opacity: 1; }

/* ── TuneIn ──────────────────────────────────────────────────────────────── */
.tunein-toolbar { display: flex; gap: .5rem; margin-bottom: 1rem; }
.tunein-search-input {
    flex: 1;
    padding: .45rem .75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-size: .875rem;
}
.tunein-search-input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.breadcrumb { display: flex; align-items: center; gap: .4rem; margin-bottom: .75rem; font-size: .85rem; flex-wrap: wrap; }
.breadcrumb-sep { color: var(--text-dim); }
.breadcrumb-link { color: var(--text-dim); cursor: pointer; }
.breadcrumb-link:hover { text-decoration: underline; }
.breadcrumb-current { font-weight: 500; }

.loading-bar {
    height: 2px;
    background: linear-gradient(90deg, var(--accent) 0%, transparent 100%);
    border-radius: 1px;
    margin-bottom: 1rem;
    animation: loading 1s ease-in-out infinite;
}
@keyframes loading { 0%,100% { opacity: .4; } 50% { opacity: 1; } }

.tunein-list { display: flex; flex-direction: column; gap: 1px; }

.tunein-item {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: .6rem .75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background .1s;
}
.tunein-item:hover { background: var(--bg); }

.tunein-thumb { width: 40px; height: 40px; border-radius: 4px; object-fit: cover; flex-shrink: 0; }
.tunein-item-info { flex: 1; overflow: hidden; }
.tunein-item-name { display: block; font-size: .9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tunein-item-desc { display: block; font-size: .75rem; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tunein-item-arrow { color: var(--text-dim); font-size: .9rem; flex-shrink: 0; }

/* ── Device picker overlay ───────────────────────────────────────────────── */
.overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.45);
    display: flex; align-items: center; justify-content: center;
    z-index: 100;
}

.device-picker {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    min-width: 240px;
    max-width: 320px;
    box-shadow: 0 8px 32px rgba(0,0,0,.2);
}
.picker-title { font-weight: 600; margin-bottom: .25rem; }
.picker-item-name { font-size: .875rem; color: var(--text-dim); margin-bottom: 1rem; }
.picker-devices { display: flex; flex-direction: column; gap: .5rem; margin-bottom: 1rem; }
.picker-device-btn {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .6rem 1rem;
    text-align: left;
    font-size: .9rem;
    transition: background .1s;
}
.picker-device-btn:hover { background: var(--border); }
.picker-cancel { width: 100%; }
.picker-no-devices { font-size: .875rem; color: var(--text-dim); text-align: center; padding: .5rem 0; }

/* ── Empty state ─────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 4rem 1rem; color: var(--text-dim); }
.empty-icon { font-size: 3rem; margin-bottom: 1rem; opacity: .4; }
.empty-state p { margin-bottom: 1.5rem; }

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--accent-fg);
    padding: .6rem 1.25rem;
    border-radius: 999px;
    font-size: .875rem;
    box-shadow: 0 4px 12px rgba(0,0,0,.2);
    z-index: 200;
    pointer-events: none;
    animation: fade-in .2s ease;
}
@keyframes fade-in { from { opacity: 0; transform: translateX(-50%) translateY(8px); } }