/* ==========================================================================
   music.css — 悬浮音乐播放器（右下角玻璃 dock）
   ========================================================================== */

.player {
    position: fixed;
    right: clamp(14px, 2vw, 28px);
    bottom: clamp(14px, 2vw, 28px);
    z-index: 800;
    width: 368px;
    padding: 12px 14px 10px;
    border-radius: 18px;
    border: 1px solid var(--line-strong);
    background: linear-gradient(180deg, var(--player-a), var(--player-b));
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    box-shadow: 0 28px 60px -26px rgba(0, 0, 0, 0.95);
    overflow: hidden;
    transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
        box-shadow 0.4s var(--ease);
}

/* 面板底图：铺满、压暗，读字不受影响 */
.player__art {
    position: absolute;
    inset: -10% -8%;
    z-index: 0;
    background-image: var(--player-art, none);
    background-size: cover;
    background-position: center 40%;
    opacity: 0;
    filter: blur(1px) saturate(1.2);
    pointer-events: none;
    transition: opacity 0.6s var(--ease);
}

.player.has-art .player__art {
    opacity: calc(0.2 + 0.8 * var(--player-art-k, 0.7));
}

/* 左侧压得多（文字在这儿）、右侧留亮（露图），底部再压一道给时间行 */
.player__art::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(var(--veil-rgb), var(--art-flat, 0.34)), rgba(var(--veil-rgb), var(--art-flat, 0.34))),
        linear-gradient(
            90deg,
            rgba(var(--veil-rgb), 0.86) 0%,
            rgba(var(--veil-rgb), 0.66) 38%,
            rgba(var(--veil-rgb), 0.14) 72%,
            rgba(var(--veil-rgb), 0.34) 100%
        ),
        linear-gradient(180deg, rgba(var(--veil-rgb), 0) 44%, rgba(var(--veil-rgb), 0.6) 100%);
}

/* 底图亮起来以后，给文字一点投影，保证还看得清 */
.player.has-art .player__title,
.player.has-art .player__artist,
.player.has-art .player__time {
    text-shadow: 0 1px 2px var(--halo), 0 2px 10px var(--halo-2);
}

.player.has-art .player__artist {
    color: var(--ink-2);
}

.player:hover {
    border-color: rgba(var(--c1-rgb), 0.4);
    box-shadow: 0 30px 70px -24px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(var(--c1-rgb), 0.12);
}

.player[hidden] {
    display: none;
}

.player__row {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 11px;
}

/* 封面：唱片一样顺时针转 */
.player__cover {
    position: relative;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    border-radius: 50%;
    padding: 1px;
    background: conic-gradient(from 0deg, var(--c2), var(--c1), var(--c3), var(--c2));
    animation: discspin 12s linear infinite;
}

@keyframes discspin {
    to {
        transform: rotate(360deg);
    }
}

.player__cover-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    background: radial-gradient(circle at 40% 35%, #232634, #0d0f16);
    display: grid;
    place-items: center;
}

.player__cover-inner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.player__cover-inner svg {
    width: 17px;
    height: 17px;
    stroke: rgba(255, 255, 255, 0.55);
    stroke-width: 1.6;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.player__meta {
    flex: 1;
    min-width: 0;
}

.player__title {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.player__artist {
    margin-top: 1px;
    font-size: 11px;
    color: var(--ink-4);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.player__controls {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

/* 控制键：没有底板、没有圆圈，只留一枚实心图标 */
.p-btn {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: var(--ink);
    opacity: 0.78;
    transition: color 0.22s var(--ease), background 0.22s var(--ease),
        opacity 0.22s var(--ease), transform 0.22s var(--ease);
}

.p-btn svg {
    width: 23px;
    height: 23px;
    fill: currentColor;
    /* base.css 给了 svg { display: block }，会盖掉 [hidden]，这里补回来 */
    display: block;
}

.p-btn svg[hidden] {
    display: none;
}

/* 双保险：靠 .is-playing 也能切换图标（JS 那边同时会动 hidden 属性） */
.player.is-playing .p-btn--play .icon-play {
    display: none;
}

.player.is-playing .p-btn--play .icon-pause {
    display: block;
}

.p-btn:hover {
    color: var(--ink);
    opacity: 1;
    background: color-mix(in srgb, var(--ink) 9%, transparent);
}

.p-btn:active {
    transform: scale(0.9);
}

.p-btn:focus-visible {
    outline: 2px solid rgba(var(--c1-rgb), 0.8);
    outline-offset: 1px;
    opacity: 1;
}

/* 中间那颗主键：同样是实心图标，只是更大 */
.p-btn--play {
    position: relative;
    width: 42px;
    height: 42px;
    opacity: 1;
}

.p-btn--play svg {
    width: 27px;
    height: 27px;
}

/* 播放三角视觉上要往右挪一点点才"正" */
.p-btn--play .icon-play {
    transform: translateX(2px);
}

.p-btn--play .icon-pause {
    width: 25px;
    height: 25px;
}

.p-btn--play:hover {
    transform: scale(1.06);
}

.p-btn--play:active {
    transform: scale(0.94);
}

/* 自动播放被浏览器拦下时，主键轻轻缩放一下，提示"点一下就能听" */
.player.is-need-tap .p-btn--play {
    animation: tap-hint 1.9s ease-in-out infinite;
}

@keyframes tap-hint {
    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
}

@media (prefers-reduced-motion: reduce) {
    .player.is-need-tap .p-btn--play {
        animation: none;
    }
}

/* 进度条 */
.player__progress {
    position: relative;
    z-index: 2;
    margin-top: 10px;
    height: 14px;
    display: flex;
    align-items: center;
    cursor: pointer;
    touch-action: none;
}

.player__track {
    position: relative;
    width: 100%;
    height: 3px;
    border-radius: 999px;
    background: var(--scroll-thumb);
    overflow: hidden;
}

.player__bar {
    position: absolute;
    inset: 0 auto 0 0;
    width: 0%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--c2), var(--c1));
    box-shadow: 0 0 12px rgba(var(--c1-rgb), 0.7);
}

.player__progress:hover .player__track {
    height: 5px;
}

.player__time {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 2px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.04em;
    color: var(--ink-4);
}

/* 音量：悬停展开 */
.player__vol {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 0;
    overflow: hidden;
    opacity: 0;
    transition: width 0.35s var(--ease), opacity 0.35s var(--ease);
}

.player:hover .player__vol {
    width: 62px;
    opacity: 1;
}

.player__vol input {
    -webkit-appearance: none;
    appearance: none;
    width: 62px;
    height: 3px;
    border-radius: 999px;
    background: var(--scroll-thumb);
    outline: none;
    cursor: pointer;
}

.player__vol input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 8px var(--hair);
    cursor: pointer;
}

.player__vol input::-moz-range-thumb {
    width: 10px;
    height: 10px;
    border: 0;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
}

/* 收起状态（小屏或用户点击折叠） */
.player__toggle {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 7px;
    color: var(--ink-4);
    transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.player__toggle svg {
    width: 13px;
    height: 13px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.35s var(--ease);
}

.player__toggle:hover {
    color: var(--ink);
    background: var(--track);
}

.player.is-collapsed {
    width: 60px;
    padding: 8px;
    cursor: pointer;
}

.player.is-collapsed .player__row {
    justify-content: center;
}

.player.is-collapsed .player__meta,
.player.is-collapsed .player__controls,
.player.is-collapsed .player__progress,
.player.is-collapsed .player__time,
.player.is-collapsed .player__vol,
.player.is-collapsed .player__toggle {
    display: none;
}

@media (max-width: 720px) {
    .player {
        left: 10px;
        right: 10px;
        bottom: 10px;
        width: auto;
        padding: 9px 11px 7px;
        border-radius: 15px;
    }

    .player__cover {
        width: 38px;
        height: 38px;
    }

    .player__title {
        font-size: 13px;
    }

    .player__artist {
        font-size: 10.5px;
    }

    .player__progress {
        margin-top: 7px;
        height: 12px;
    }

    .player__time {
        margin-top: 1px;
        font-size: 9.5px;
    }

    .player:hover .player__vol {
        width: 0;
        opacity: 0;
    }

    .p-btn:not(.p-btn--play) {
        display: none;
    }

    .player.is-collapsed {
        left: auto;
        right: 10px;
        width: 56px;
        padding: 8px;
    }

    body {
        padding-bottom: 112px;
    }

    .bg-toggle {
        left: 10px;
        bottom: 118px;
        width: 34px;
        height: 34px;
    }

    .bg-toggle svg {
        width: 13px;
        height: 13px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .player__cover {
        animation: none;
    }
}

/* 底图换成视频时用这个（mp4 / webm），裁切与透明度跟图片版一致 */
.player__art-el {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
    opacity: 0;
    transition: opacity 0.6s var(--ease);
    pointer-events: none;
}

.player.has-art-video .player__art {
    background-image: none;
    /* 视频自己控制浓度，外层不再叠一次透明度 */
    opacity: 1;
}

.player.has-art-video .player__art-el {
    opacity: calc(0.25 + 0.75 * var(--player-art-k, 0.7));
}