/* assets/music-player.css —— 全站共享音乐播放器（任务130，neo-brutalist） */

/* ===== 浮动栈按钮 ===== */
.lt-music-toggle {
    position: relative;
    background: var(--green, #1db954);
    color: #fff;
    border-color: var(--line, #151515);
    overflow: visible;
}

.lt-music-toggle:hover {
    background: #169c46;
}

.lt-music-toggle .lt-music-icon {
    stroke: #fff;
}

.lt-music-toggle .lt-music-toggle-label {
    font-size: 13px;
    font-weight: 700;
}

/* ===== 播放状态动效（任务130）===== */
/* 呼吸光晕：克制的外发光脉冲 */
.lt-music-toggle.is-playing::before {
    content: '';
    position: absolute;
    inset: -3px;
    pointer-events: none;
    z-index: -1;
    animation: lt-music-glow 2.4s ease-in-out infinite;
}

@keyframes lt-music-glow {
    0%, 100% { box-shadow: 0 0 5px 1px rgba(29, 185, 84, 0.2); }
    50% { box-shadow: 0 0 12px 3px rgba(29, 185, 84, 0.35); }
}

/* 脉冲波纹：从按钮边缘扩散 */
.lt-music-toggle.is-playing::after {
    content: '';
    position: absolute;
    inset: -2px;
    border: 2px solid rgba(29, 185, 84, 0.4);
    pointer-events: none;
    animation: lt-music-ripple 2.4s ease-out infinite;
}

@keyframes lt-music-ripple {
    0% { transform: scale(1); opacity: 0.5; }
    100% { transform: scale(1.2); opacity: 0; }
}

/* 图标轻微节奏感 */
.lt-music-toggle.is-playing .lt-music-icon {
    animation: lt-music-pulse 1.6s ease-in-out infinite;
}

@keyframes lt-music-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .65; transform: scale(.92); }
}

/* ===== 面板容器 ===== */
.lt-music-panel {
    position: fixed;
    right: 24px;
    bottom: 100px;
    z-index: 79;
    width: 320px;
    max-width: calc(100vw - 32px);
    background: var(--paper, #f3f0e8);
    border: 2px solid var(--line, #151515);
    box-shadow: 6px 6px 0 var(--line, #151515);
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity .2s ease, visibility .2s ease, transform .2s ease;
    pointer-events: none;
}

.lt-music-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.lt-music-panel[hidden] {
    display: none !important;
}

/* ===== 面板头部 ===== */
.lt-music-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 10px;
    border-bottom: 2px solid var(--line, #151515);
    background: var(--ink, #111);
    color: #fff;
}

.lt-music-panel-title {
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .03em;
    text-transform: uppercase;
}

.lt-music-panel-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
    background: transparent;
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: transform .1s ease, background-color .1s ease;
    -webkit-tap-highlight-color: transparent;
    flex-shrink: 0;
}

.lt-music-panel-close:hover {
    background: rgba(255, 255, 255, .15);
}

.lt-music-panel-close:active {
    transform: scale(.92);
}

.lt-music-panel-close:focus-visible {
    outline: 3px solid var(--blue, #2d5bff);
    outline-offset: 2px;
}

/* ===== 公告 ===== */
.lt-music-notice {
    padding: 8px 16px;
    font-size: 12px;
    line-height: 1.5;
    color: var(--ink, #111);
    background: var(--card, #fbfaf6);
    border-bottom: 2px solid var(--line, #151515);
}

.lt-music-notice:empty {
    display: none;
}

/* ===== 曲目显示区 ===== */
.lt-music-track-display {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    align-items: center;
}

.lt-music-cover {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border: 2px solid var(--line, #151515);
    background: var(--card, #fbfaf6);
    overflow: hidden;
    position: relative;
}

.lt-music-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.lt-music-cover-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--muted, #69665f);
}

.lt-music-cover-placeholder:empty::before {
    content: '♪';
}

.lt-music-info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

/* ===== 标题滚动（任务130）===== */
.lt-music-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--ink, #111);
    overflow: hidden;
    white-space: nowrap;
    line-height: 1.3;
    text-overflow: clip;
}

.lt-music-title-text {
    display: inline-block;
    white-space: nowrap;
    will-change: transform;
}

/* 溢出时启用无缝循环滚动 */
.lt-music-title.is-scrolling .lt-music-title-text {
    animation: lt-title-marquee var(--title-scroll-duration, 8s) linear infinite;
}

@keyframes lt-title-marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.lt-music-artist {
    font-size: 12px;
    color: var(--muted, #69665f);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-top: 2px;
}

.lt-music-artist:empty {
    display: none;
}

/* ===== 进度条 + 闪电波动（任务130）===== */
.lt-music-progress {
    position: relative;
    height: 28px;
    margin: 0 16px;
    background: var(--card, #fbfaf6);
    border: 2px solid var(--line, #151515);
    cursor: pointer;
    overflow: hidden;
}

/* 波形视觉层 */
.lt-music-waveform {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    pointer-events: none;
    overflow: hidden;
    padding: 2px;
}

.lt-music-wave-base,
.lt-music-wave-played {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    gap: 1px;
    padding: 2px 3px;
}

.lt-music-wave-bar {
    flex: 1;
    min-width: 2px;
    max-width: 5px;
    background: rgba(21, 21, 21, 0.15);
}

.lt-music-wave-bar.is-played {
    background: var(--green, #1db954);
}

/* 已播放层：通过 clip-path 控制宽度 */
.lt-music-wave-played {
    overflow: hidden;
}

/* 播放时微妙闪烁 */
.lt-music-waveform.is-playing .lt-music-wave-played {
    animation: lt-wave-shimmer 3s ease-in-out infinite;
}

@keyframes lt-wave-shimmer {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.82; }
}

/* 兼容旧进度条填充（保留在波形下层） */
.lt-music-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: rgba(29, 185, 84, 0.12);
    transition: width .15s linear;
    pointer-events: none;
}

.lt-music-seek {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    z-index: 2;
}

.lt-music-time {
    display: flex;
    justify-content: space-between;
    padding: 4px 16px 8px;
    font-size: 11px;
    font-variant-numeric: tabular-nums;
    color: var(--muted, #69665f);
}

/* ===== 主控件 ===== */
.lt-music-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 8px 16px 12px;
}

.lt-music-ctrl {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--line, #151515);
    background: var(--card, #fbfaf6);
    color: var(--ink, #111);
    cursor: pointer;
    box-shadow: 2px 2px 0 var(--line, #151515);
    transition: transform .1s ease, box-shadow .1s ease;
    -webkit-tap-highlight-color: transparent;
}

.lt-music-ctrl:hover {
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0 var(--line, #151515);
}

.lt-music-ctrl:active {
    transform: translate(1px, 1px);
    box-shadow: 1px 1px 0 var(--line, #151515);
}

.lt-music-ctrl:disabled {
    opacity: .35;
    cursor: not-allowed;
    transform: none;
    box-shadow: 2px 2px 0 var(--line, #151515);
}

.lt-music-ctrl:focus-visible {
    outline: 3px solid var(--blue, #2d5bff);
    outline-offset: 2px;
}

.lt-music-ctrl svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.lt-music-prev,
.lt-music-next {
    width: 40px;
    height: 40px;
}

.lt-music-play {
    width: 52px;
    height: 52px;
    background: var(--green, #1db954);
    color: #fff;
}

.lt-music-play:hover {
    background: #169c46;
}

.lt-music-play svg {
    width: 24px;
    height: 24px;
    stroke: #fff;
}

.lt-music-play .lt-music-icon-pause {
    fill: #fff;
    stroke: #fff;
}

/* ===== 音量 + 模式 ===== */
.lt-music-extras {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 16px 14px;
    border-top: 2px solid var(--line, #151515);
}

.lt-music-volume-group {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.lt-music-mute,
.lt-music-mode {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.lt-music-mute svg,
.lt-music-mode svg {
    width: 16px;
    height: 16px;
}

.lt-music-volume {
    flex: 1;
    min-width: 0;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--card, #fbfaf6);
    border: 2px solid var(--line, #151515);
    outline: none;
    cursor: pointer;
}

.lt-music-volume::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--green, #1db954);
    border: 2px solid var(--line, #151515);
    cursor: pointer;
}

.lt-music-volume::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--green, #1db954);
    border: 2px solid var(--line, #151515);
    cursor: pointer;
    border-radius: 0;
}

.lt-music-mode {
    position: relative;
}

.lt-music-mode[data-mode="repeat"] .lt-music-mode-repeat,
.lt-music-mode[data-mode="shuffle"] .lt-music-mode-shuffle {
    display: block;
}

.lt-music-mode[data-mode="repeat"] .lt-music-mode-sequential,
.lt-music-mode[data-mode="shuffle"] .lt-music-mode-sequential,
.lt-music-mode[data-mode="sequential"] .lt-music-mode-repeat,
.lt-music-mode[data-mode="sequential"] .lt-music-mode-shuffle {
    display: none;
}

.lt-music-mode svg[hidden] {
    display: none !important;
}

.lt-music-mode.is-active {
    background: var(--green, #1db954);
    color: #fff;
}

.lt-music-mode.is-active svg {
    stroke: #fff;
}

/* ===== 加载态 ===== */
.lt-music-panel.is-loading .lt-music-cover-placeholder {
    animation: lt-music-spin 1s linear infinite;
}

@keyframes lt-music-spin {
    to { transform: rotate(360deg); }
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
    .lt-music-panel,
    .lt-music-panel-close,
    .lt-music-ctrl,
    .lt-music-toggle.is-playing .lt-music-icon,
    .lt-music-toggle.is-playing::before,
    .lt-music-toggle.is-playing::after,
    .lt-music-title.is-scrolling .lt-music-title-text,
    .lt-music-waveform.is-playing .lt-music-wave-played {
        transition: none !important;
        animation: none !important;
    }
}

/* ===== 移动端 ===== */
@media (max-width: 768px) {
    .lt-music-panel {
        width: min(320px, calc(100vw - 32px));
        /* 任务129：面板避让底部导航栏（在浮动按钮上方展开） */
        bottom: calc(140px + env(safe-area-inset-bottom, 0px));
    }

    .lt-music-toggle .lt-music-toggle-label {
        font-size: 12px;
    }
}

/* ===== 影院页面：与 floating-tools 同策略降 z-index ===== */
.cinema-shell .lt-music-panel {
    z-index: 49;
}

/* ===== 联系弹窗打开时：面板不遮挡（降低 z-index 在弹窗之下） ===== */
.ft-modal-overlay.is-open ~ .lt-music-panel,
body.ft-scroll-locked .lt-music-panel.is-open {
    z-index: 78;
}