/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   radio.css
   The draggable music player widget.

   The radio widget is a frosted-glass panel that slides in after
   the globe pin lines finish drawing. It stays visible for the
   duration of the session and can be dragged anywhere on screen.

   Structure:
     #radioWidget
       └─ #radioDragHandle         (grab bar at top)
       └─ .radio-inner
            └─ .radio-marquee-wrap (scrolling song title)
            └─ .radio-artist       (artist name)
            └─ .radio-progress-wrap
                 └─ .radio-progress-bar → .radio-progress-fill
                 └─ .radio-times       (current / duration)
            └─ .radio-controls    (prev, play/pause, next)
            └─ .radio-volume-wrap (VOL label + range slider)
            └─ .radio-playlist-hint  (→ opens Mixtape overlay)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   WIDGET CONTAINER
   Fixed bottom-right initially. JS overrides left/top when dragged.
   backdrop-filter gives the frosted glass effect.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

#radioWidget {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 280px;
    z-index: 200;

    /* Starts hidden — JS adds .visible after pin lines draw */
    opacity: 0;
    pointer-events: none;
    transition: opacity 1.5s ease;

    /* Frosted glass panel */
    border-radius: 16px;
    background: rgba(253, 252, 250, 0.55);
    backdrop-filter: blur(24px) saturate(1.4);
    -webkit-backdrop-filter: blur(24px) saturate(1.4);
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow:
        0 8px 32px rgba(26, 26, 24, 0.12),
        inset 0  1px 0 rgba(255, 255, 255, 0.8),
        inset 0 -1px 0 rgba(26,  26,  24,  0.06);

    /* Prevent text selection while dragging */
    user-select: none;
}

#radioWidget.visible {
    opacity: 1;
    pointer-events: all;
}


/* ── Drag Handle ── */

/* The pill bar at the top — cursor:grab signals draggability.
   JS attaches mousedown here to start the drag sequence. */
#radioDragHandle {
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    border-bottom: 1px solid rgba(26, 26, 24, 0.06);
    border-radius: 16px 16px 0 0;
}

#radioDragHandle:active {
    cursor: grabbing;
}

/* The visual indicator — a short rounded bar, like a modal sheet handle */
.radio-drag-dots {
    width: 32px;
    height: 4px;
    border-radius: 2px;
    background: rgba(26, 26, 24, 0.15);
}


/* ── Inner Content ── */

.radio-inner {
    padding: 14px 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   TRACK INFO
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* Clipping wrapper — overflow:hidden crops the marquee */
.radio-marquee-wrap {
    overflow: hidden;
    width: 100%;
    position: relative;
}

/* The scrolling title. JS toggles .fits when text is short enough
   that it doesn't need to scroll — animation is paused in that case. */
.radio-marquee {
    font-family: 'Vipnagorgialla Rg', sans-serif;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ink);
    white-space: nowrap;
    display: inline-block;
    animation: marqueeScroll 10s linear infinite;
    letter-spacing: -0.02em;
}

@keyframes marqueeScroll {
    0%   { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* No scrolling needed — text fits */
.radio-marquee.fits {
    animation: none;
}

.radio-artist {
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--muted);
    text-transform: uppercase;
    margin-top: -6px;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   PROGRESS BAR
   Clickable — JS reads click position and scrubs the audio.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.radio-progress-wrap {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.radio-progress-bar {
    height: 3px;
    background: rgba(26, 26, 24, 0.1);
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
}

.radio-progress-fill {
    height: 100%;
    width: 0%;
    background: var(--red);
    border-radius: 2px;
    /* Linear transition so the bar advances smoothly between updates */
    transition: width 0.5s linear;
}

/* Time stamps: current on the left, total on the right */
.radio-times {
    display: flex;
    justify-content: space-between;
    font-family: 'Space Mono', monospace;
    font-size: 0.6rem;
    color: var(--muted);
    letter-spacing: 0.05em;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   PLAYBACK CONTROLS
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.radio-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

/* Shared button style — small circular pill */
.radio-btn {
    background: rgba(26, 26, 24, 0.06);
    border: 1px solid rgba(26, 26, 24, 0.1);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.6rem;
    color: var(--ink);
    transition: background 0.15s, transform 0.1s;
    padding: 0;
}

.radio-btn:hover  { background: rgba(26, 26, 24, 0.12); }
.radio-btn:active { transform: scale(0.92); }

/* Play/pause button is larger and inverted (dark bg, cream icon) */
.radio-play {
    width: 42px;
    height: 42px;
    font-size: 0.8rem;
    background: var(--ink);
    color: var(--cream);
    border-color: transparent;
}

.radio-play:hover { background: var(--ink2); }


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   VOLUME CONTROL
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.radio-volume-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.radio-vol-label {
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    color: var(--muted);
    text-transform: uppercase;
    flex-shrink: 0;
}

/* Custom range slider — reset browser appearance, restyle the track and thumb */
.radio-volume {
    flex: 1;
    height: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(26, 26, 24, 0.1);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

/* Thumb — webkit */
.radio-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ink);
    cursor: pointer;
    border: none;
}

/* Thumb — Firefox */
.radio-volume::-moz-range-thumb {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--ink);
    cursor: pointer;
    border: none;
}


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   MIXTAPE BUTTON
   Replaces the old "Playlist manager — coming soon" hint.
   Opens the Mixtape overlay when clicked.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.radio-playlist-hint {
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--muted2);
    text-transform: uppercase;
    text-align: center;
    border-top: 1px solid rgba(26, 26, 24, 0.06);
    padding-top: 8px;
    cursor: pointer;
    transition: color 0.2s;
    position: relative;
}

.radio-playlist-hint::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0%;
    height: 1px;
    background: var(--red);
    transition: width 0.2s ease;
}

.radio-playlist-hint:hover {
    color: var(--ink);
}

.radio-playlist-hint:hover::after {
    width: 60%;
}