/* 🎵 Music Module — senior-friendly radio + Kafánek host */

.mus-module {
    max-width: 1040px;
    margin: 0 auto;
    padding: var(--radim-space-5) var(--radim-space-4) var(--radim-space-8);
    color: var(--radim-text);
    font-family: inherit;
}

/* ── Masthead ─────────────────────────────────────────────────── */
.mus-masthead {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--radim-space-4);
    padding-bottom: var(--radim-space-4);
    border-bottom: 2px solid var(--radim-border);
    margin-bottom: var(--radim-space-5);
}

.mus-masthead h2 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: var(--radim-text);
    margin: 0;
}

.mus-subtitle {
    color: var(--radim-text-subtle);
    font-size: var(--radim-font-sm);
    margin: 4px 0 0;
}

/* ── Kafánek greeting card ────────────────────────────────────── */
.mus-avatar-card {
    display: flex;
    gap: var(--radim-space-4);
    align-items: center;
    background: linear-gradient(135deg,
                  var(--radim-surface) 0%,
                  var(--radim-surface-hover) 100%);
    border: 1.5px solid var(--radim-border);
    border-left: 4px solid var(--radim-primary);
    border-radius: var(--radim-radius-xl);
    padding: var(--radim-space-4);
    margin-bottom: var(--radim-space-5);
    box-shadow: var(--radim-shadow-sm);
}

.mus-avatar-img {
    width: 92px;
    height: 92px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 6%;   /* show head, not torso */
    background: var(--radim-primary-tint);
    flex-shrink: 0;
    box-shadow: 0 4px 14px var(--radim-primary-ring),
                inset 0 0 0 3px var(--radim-surface);
    border: 3px solid var(--radim-primary);
    transform-origin: 50% 85%;
    will-change: transform;
}

/* When music plays, gently bob the avatar like it's listening.
   Triggered by .mus-playing on the module root (set in _updateUI). */
@keyframes mus-avatar-bob {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25%      { transform: translateY(-2px) rotate(-2deg); }
    50%      { transform: translateY(-3px) rotate(0deg); }
    75%      { transform: translateY(-2px) rotate(2deg); }
}

@keyframes mus-avatar-ring-pulse {
    0%, 100% { box-shadow: 0 4px 14px var(--radim-primary-ring),
                           inset 0 0 0 3px var(--radim-surface); }
    50%      { box-shadow: 0 6px 22px var(--radim-primary),
                           inset 0 0 0 3px var(--radim-surface); }
}

.mus-playing .mus-avatar-img {
    animation: mus-avatar-bob 1.6s ease-in-out infinite,
               mus-avatar-ring-pulse 2.4s ease-in-out infinite;
}

.mus-avatar-speech {
    flex: 1;
    min-width: 0;
}

.mus-avatar-name {
    font-weight: 700;
    color: var(--radim-primary);
    font-size: var(--radim-font-sm);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.mus-avatar-text {
    margin: 0 0 var(--radim-space-3);
    color: var(--radim-text);
    font-size: var(--radim-font-lg);
    line-height: 1.5;
    font-style: italic;
}

.mus-quick-picks {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mus-quick-btn {
    padding: 9px 16px;
    font-family: inherit;
    font-size: var(--radim-font-sm);
    font-weight: 600;
    border-radius: var(--radim-radius-md);
    cursor: pointer;
    background: var(--radim-surface);
    color: var(--radim-text);
    border: 1.5px solid var(--radim-border);
    transition: border-color var(--radim-dur-base) var(--radim-ease),
                color var(--radim-dur-base) var(--radim-ease),
                background var(--radim-dur-base) var(--radim-ease),
                transform 0.12s var(--radim-ease);
}

.mus-quick-btn:hover {
    border-color: var(--radim-primary);
    color: var(--radim-primary);
    transform: translateY(-1px);
}

.mus-quick-btn:active { transform: scale(0.96); }

.mus-quick-btn-primary {
    background: var(--radim-primary);
    color: var(--radim-surface);
    border-color: var(--radim-primary);
    box-shadow: 0 2px 8px var(--radim-primary-ring);
}

.mus-quick-btn-primary:hover {
    background: var(--radim-primary-hover);
    color: var(--radim-surface);
    box-shadow: 0 4px 12px var(--radim-primary-ring);
}

/* ── Now-playing hero ─────────────────────────────────────────── */
.mus-now-playing {
    display: none;
    background: linear-gradient(135deg, var(--radim-primary) 0%, var(--radim-primary-hover) 100%);
    color: var(--radim-surface);
    border-radius: var(--radim-radius-2xl);
    padding: var(--radim-space-5) var(--radim-space-5) var(--radim-space-4);
    margin-bottom: var(--radim-space-5);
    box-shadow: var(--radim-shadow-lg);
    position: relative;
    overflow: hidden;
}

.mus-now-playing.mus-is-playing { display: block; }

.mus-now-playing::before {
    content: '';
    position: absolute;
    top: -40px; right: -40px;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
    pointer-events: none;
}

.mus-np-inner {
    display: flex;
    align-items: center;
    gap: var(--radim-space-4);
    position: relative;
    z-index: 1;
}

.mus-vinyl {
    width: 92px;
    height: 92px;
    border-radius: 50%;
    background: radial-gradient(circle,
        #2d3748 0%, #2d3748 30%,
        rgba(255,255,255,0.2) 30%, rgba(255,255,255,0.2) 32%,
        #2d3748 32%, #2d3748 100%);
    box-shadow: inset 0 0 20px rgba(0,0,0,0.4), 0 4px 12px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    animation: mus-vinyl-spin 3s linear infinite;
    flex-shrink: 0;
}

@keyframes mus-vinyl-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.mus-np-info {
    flex: 1;
    min-width: 0;
}

.mus-np-label {
    font-size: var(--radim-font-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.8;
    margin-bottom: 2px;
}

.mus-np-name {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 4px;
}

.mus-np-category {
    font-size: var(--radim-font-sm);
    opacity: 0.8;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Audio-wave visualizer — 5 bars, pseudo-random pulses */
.mus-wave {
    display: inline-flex;
    align-items: flex-end;
    gap: 3px;
    height: 16px;
    margin-left: 2px;
}

.mus-wave span {
    display: inline-block;
    width: 3px;
    background: var(--radim-surface);
    border-radius: 2px;
    opacity: 0.85;
    animation: mus-wave-bounce 1s ease-in-out infinite;
    transform-origin: bottom;
}

.mus-wave span:nth-child(1) { animation-delay: 0s;    height: 40%; }
.mus-wave span:nth-child(2) { animation-delay: 0.15s; height: 80%; }
.mus-wave span:nth-child(3) { animation-delay: 0.3s;  height: 55%; }
.mus-wave span:nth-child(4) { animation-delay: 0.45s; height: 95%; }
.mus-wave span:nth-child(5) { animation-delay: 0.6s;  height: 65%; }

@keyframes mus-wave-bounce {
    0%, 100% { transform: scaleY(0.35); }
    50%      { transform: scaleY(1); }
}

.mus-np-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--radim-space-3);
    margin-top: var(--radim-space-4);
}

.mus-ctrl {
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.12s, background var(--radim-dur-base) var(--radim-ease);
    font-family: inherit;
}

.mus-ctrl:active { transform: scale(0.94); }

.mus-ctrl-vol {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.18);
    color: var(--radim-surface);
    font-size: 1.2rem;
}

.mus-ctrl-vol:hover { background: rgba(255,255,255,0.28); }

.mus-ctrl-stop {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--radim-surface);
    color: var(--radim-danger);
    font-size: 1.6rem;
    font-weight: 700;
    box-shadow: 0 4px 14px rgba(0,0,0,0.2);
}

.mus-ctrl-stop:hover {
    background: var(--radim-danger-soft);
}

.mus-vol-label {
    text-align: center;
    margin-top: var(--radim-space-3);
    font-size: var(--radim-font-sm);
    opacity: 0.85;
    letter-spacing: 0.02em;
}

/* ── Category tabs ────────────────────────────────────────────── */
.mus-tabs {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
    margin-bottom: var(--radim-space-4);
    scrollbar-width: thin;
    scrollbar-color: var(--radim-border) transparent;
}

.mus-tabs::-webkit-scrollbar { height: 6px; }
.mus-tabs::-webkit-scrollbar-thumb {
    background: var(--radim-border);
    border-radius: 3px;
}

.mus-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 16px;
    min-height: var(--radim-tap-target-min);
    border: 1.5px solid var(--radim-border);
    border-radius: var(--radim-radius-md);
    background: var(--radim-surface);
    color: var(--radim-text-muted);
    font-family: inherit;
    font-size: var(--radim-font-sm);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--radim-dur-base) var(--radim-ease);
    -webkit-tap-highlight-color: transparent;
}

.mus-tab:hover {
    border-color: var(--radim-primary);
    color: var(--radim-primary);
}

.mus-tab-active {
    background: var(--radim-primary-tint);
    border-color: var(--radim-primary);
    color: var(--radim-primary);
    position: relative;
}

/* Subtle "ink" underline for active tab */
.mus-tab-active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 16px;
    right: 16px;
    height: 3px;
    background: var(--radim-primary);
    border-radius: 2px;
    animation: mus-tab-ink 240ms var(--radim-ease);
}

@keyframes mus-tab-ink {
    from { transform: scaleX(0); }
    to   { transform: scaleX(1); }
}

/* ── Station grid ─────────────────────────────────────────────── */
.mus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--radim-space-3);
    margin-bottom: var(--radim-space-6);
}

.mus-station {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: var(--radim-space-4) var(--radim-space-3);
    background: var(--radim-surface);
    border: 1.5px solid var(--radim-border);
    border-radius: var(--radim-radius-xl);
    cursor: pointer;
    transition: all var(--radim-dur-base) var(--radim-ease);
    text-align: center;
    font-family: inherit;
    min-height: 130px;
    position: relative;
}

.mus-station:hover {
    border-color: var(--radim-primary);
    transform: translateY(-2px);
    box-shadow: var(--radim-shadow-md);
}

.mus-station:active { transform: scale(0.98); }

.mus-station-icon {
    font-size: 2.2rem;
    line-height: 1;
    margin-bottom: 2px;
}

.mus-station-name {
    font-weight: 700;
    font-size: 1rem;
    color: var(--radim-text);
    line-height: 1.2;
}

.mus-station-cat {
    font-size: var(--radim-font-xs);
    color: var(--radim-text-faded);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Currently playing marker on card */
.mus-station-active {
    border-color: var(--radim-primary);
    background: var(--radim-primary-tint);
    box-shadow: 0 0 0 3px var(--radim-primary-ring),
                var(--radim-shadow-md);
    animation: mus-station-breathe 2.4s ease-in-out infinite;
}

@keyframes mus-station-breathe {
    0%, 100% { box-shadow: 0 0 0 3px var(--radim-primary-ring), var(--radim-shadow-md); }
    50%      { box-shadow: 0 0 0 5px var(--radim-primary-ring), var(--radim-shadow-lg); }
}

.mus-station-active::after {
    content: '▶ Hraje';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--radim-primary);
    color: var(--radim-surface);
    font-size: var(--radim-font-xs);
    font-weight: 700;
    padding: 3px 12px;
    border-radius: var(--radim-radius-pill);
    letter-spacing: 0.04em;
    white-space: nowrap;
    box-shadow: 0 2px 6px var(--radim-primary-ring);
}

.mus-station-active .mus-station-icon {
    animation: mus-station-icon-spin 8s linear infinite;
}

@keyframes mus-station-icon-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* Different tint for relaxation / thematic cards */
.mus-station-relax {
    background: #ebf8ff;
    border-color: #bee3f8;
}

/* ── Section heading ──────────────────────────────────────────── */
.mus-section-title {
    font-size: var(--radim-font-lg);
    font-weight: 700;
    color: var(--radim-text);
    margin: var(--radim-space-5) 0 var(--radim-space-3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.mus-section-title:first-of-type { margin-top: 0; }

/* ── Mini player (floating, when away from module) ───────────── */
.mus-mini {
    position: fixed;
    bottom: 90px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--radim-primary), var(--radim-primary-hover));
    color: var(--radim-surface);
    border-radius: var(--radim-radius-pill);
    padding: 8px 14px 8px 18px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    display: none;
    align-items: center;
    gap: 12px;
    font-size: var(--radim-font-sm);
    max-width: 90vw;
    min-width: 200px;
    cursor: pointer;
    z-index: 8500;
    animation: mus-mini-in 280ms var(--radim-ease);
}

.mus-mini.mus-mini-visible { display: flex; }

@keyframes mus-mini-in {
    from { transform: translate(-50%, 30px); opacity: 0; }
    to   { transform: translate(-50%, 0);    opacity: 1; }
}

.mus-mini-icon {
    font-size: 1.3rem;
    line-height: 1;
}

.mus-mini-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
}

.mus-mini-stop {
    background: rgba(255,255,255,0.25);
    border: none;
    color: var(--radim-surface);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    flex-shrink: 0;
}

.mus-mini-stop:hover { background: rgba(255,255,255,0.4); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 640px) {
    .mus-module {
        padding: var(--radim-space-3);
    }
    .mus-masthead {
        flex-direction: column;
        align-items: flex-start;
    }
    .mus-avatar-card {
        flex-direction: column;
        text-align: center;
    }
    .mus-avatar-img {
        width: 72px;
        height: 72px;
    }
    .mus-quick-picks {
        justify-content: center;
    }
    .mus-np-inner {
        flex-direction: column;
        text-align: center;
    }
    .mus-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}