/* ============================================================
   ROOT & RESET
   ============================================================ */
@keyframes twinkle {
    0%, 100% { opacity: 0.15; transform: scale(0.8); }
    50% { opacity: 1; transform: scale(1.2); }
}
@keyframes drift {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(var(--dx), var(--dy)) rotate(720deg); }
}
@keyframes discSpin {
    0% { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(360deg) scale(1); }
}
@keyframes progressSheen {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
@keyframes cardHoverLift {
    0% { transform: translateY(0) scale(1); box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
    100% { transform: translateY(-4px) scale(1.01); box-shadow: 0 12px 32px rgba(108,92,231,0.15); }
}
@keyframes cardHoverOut {
    0% { transform: translateY(-4px) scale(1.01); }
    100% { transform: translateY(0) scale(1); }
}
@keyframes panelFlipIn {
    0% { opacity: 0; transform: perspective(800px) rotateY(-12deg) translateX(-20px) scale(0.96); }
    100% { opacity: 1; transform: perspective(800px) rotateY(0deg) translateX(0) scale(1); }
}
@keyframes panelFlipOut {
    0% { opacity: 1; transform: perspective(800px) rotateY(0deg) translateX(0) scale(1); }
    100% { opacity: 0; transform: perspective(800px) rotateY(12deg) translateX(20px) scale(0.96); }
}
@keyframes starBurst {
    0% { transform: translate(0, 0) scale(1) rotate(0deg); opacity: 1; }
    100% { transform: translate(var(--sx), var(--sy)) scale(0) rotate(720deg); opacity: 0; }
}
@keyframes rippleWave {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(6); opacity: 0; }
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    -webkit-user-select: none;
}

:root {
    --primary: #6C5CE7;
    --primary-light: #A29BFE;
    --primary-dark: #4A3DBF;
    --secondary: #00CEC9;
    --accent: #FD79A8;
    --bg-start: #0c0e1a;
    --bg-end: #1a1a2e;
    --gray-0: #ffffff;
    --gray-1: #f0f0f5;
    --gray-2: #d9d9e3;
    --gray-3: #b0b0c0;
    --gray-4: #7a7a8a;
    --gray-5: #4a4a5a;
    --gray-6: #2a2a3a;
    --gray-7: #1a1a2a;
    --gray-8: #0e0e1a;
    --card-bg: rgba(255,255,255,0.06);
    --card-border: rgba(255,255,255,0.08);
    --card-shadow: 0 8px 32px rgba(0,0,0,0.3);
    --glass-bg: rgba(255,255,255,0.05);
    --glass-border: rgba(255,255,255,0.10);
    --glass-blur: 24px;
    --font: -apple-system, 'Helvetica Neue', 'PingFang SC', 'SF Pro Text', sans-serif;
    --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --smooth: cubic-bezier(0.25, 0.8, 0.25, 1);
    --bounce: cubic-bezier(0.68, -0.55, 0.27, 1.55);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition-fast: 0.2s var(--spring);
    --transition-med: 0.4s var(--smooth);
    --transition-slow: 0.6s var(--smooth);
    --lyrics-bg: rgba(0,0,0,0.25);
    --lyrics-text: var(--text-secondary);
}

body {
    --bg-primary: var(--bg-start);
    --bg-secondary: var(--bg-end);
    --text-primary: #f0f0f5;
    --text-secondary: #b0b0c0;
    --text-muted: #7a7a8a;
    --card-bg: rgba(255,255,255,0.04);
    --card-border: rgba(255,255,255,0.06);
    --card-hover: rgba(255,255,255,0.08);
    --shadow-color: rgba(0,0,0,0.4);
    --glow-color: rgba(108,92,231,0.3);
    --input-bg: rgba(255,255,255,0.06);
    --input-border: rgba(255,255,255,0.10);
    --scrollbar-track: rgba(255,255,255,0.02);
    --scrollbar-thumb: rgba(255,255,255,0.10);
    --lyrics-bg: rgba(0,0,0,0.25);
    --lyrics-text: var(--text-secondary);
}

body.light {
    --bg-primary: #f5f3ff;
    --bg-secondary: #ede9fe;
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a5a;
    --text-muted: #7a7a8a;
    --card-bg: rgba(255,255,255,0.6);
    --card-border: rgba(255,255,255,0.3);
    --card-hover: rgba(255,255,255,0.8);
    --shadow-color: rgba(108,92,231,0.10);
    --glow-color: rgba(108,92,231,0.15);
    --input-bg: rgba(255,255,255,0.6);
    --input-border: rgba(0,0,0,0.06);
    --scrollbar-track: rgba(0,0,0,0.02);
    --scrollbar-thumb: rgba(0,0,0,0.08);
    --lyrics-bg: rgba(255,255,255,0.55);
    --lyrics-text: var(--text-secondary);
}

html, body {
    height: 100%;
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background 0.6s var(--smooth), color 0.4s var(--smooth);
    overflow: hidden;
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; }

/* ===== ANIMATED BACKGROUND ===== */
.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
    background: var(--bg-primary);
    transition: background 0.6s var(--smooth);
}
.bg-canvas .orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    will-change: transform;
    animation: orbFloat 20s ease-in-out infinite alternate;
}
.bg-canvas .orb:nth-child(1) {
    width: 400px; height: 400px;
    background: var(--primary);
    top: -10%; left: -10%;
    animation-duration: 25s;
}
.bg-canvas .orb:nth-child(2) {
    width: 300px; height: 300px;
    background: var(--secondary);
    bottom: -10%; right: -10%;
    animation-duration: 20s;
    animation-delay: -5s;
    opacity: 0.2;
}
.bg-canvas .orb:nth-child(3) {
    width: 250px; height: 250px;
    background: var(--accent);
    top: 40%; left: 50%;
    animation-duration: 22s;
    animation-delay: -10s;
    opacity: 0.15;
}
@keyframes orbFloat {
    0% { transform: translate(0,0) scale(1); }
    33% { transform: translate(60px,-40px) scale(1.1); }
    66% { transform: translate(-30px,50px) scale(0.9); }
    100% { transform: translate(40px,-20px) scale(1.05); }
}

/* ===== APP SHELL ===== */
.app {
    position: relative;
    z-index: 1;
    max-width: 480px;
    margin: 0 auto;
    height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0 16px 16px;
    overflow: hidden;
}

/* ===== HEADER ===== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0 12px;
    flex-shrink: 0;
    animation: headerEnter 0.8s var(--spring) both;
}
@keyframes headerEnter {
    0% { opacity: 0; transform: translateY(-30px) scale(0.95); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand h1 {
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    animation: titleGlow 3s ease-in-out infinite alternate;
}
@keyframes titleGlow {
    0% { filter: drop-shadow(0 0 8px rgba(108,92,231,0.2)); }
    100% { filter: drop-shadow(0 0 20px rgba(108,92,231,0.5)); }
}
.brand .sub {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 400;
    letter-spacing: 0.5px;
    opacity: 0.7;
    -webkit-text-fill-color: var(--text-muted);
}
.header-actions { display: flex; align-items: center; gap: 8px; }
.theme-toggle {
    display: flex;
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: 100px;
    padding: 3px;
    border: 1px solid var(--card-border);
    position: relative;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.theme-toggle .indicator {
    position: absolute;
    top: 3px;
    bottom: 3px;
    width: calc(50% - 6px);
    background: var(--primary);
    border-radius: 100px;
    transition: left 0.5s var(--spring), background 0.3s;
    box-shadow: 0 0 20px var(--glow-color);
    z-index: 0;
}
.theme-btn {
    background: transparent;
    border: none;
    width: 34px; height: 34px;
    border-radius: 100px;
    font-size: 0.95rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    z-index: 1;
    transition: color 0.3s, transform 0.2s var(--spring);
}
.theme-btn:active { transform: scale(0.8); }
.theme-btn.active { color: #fff; }

/* ===== SEARCH ===== */
.search-wrap {
    flex-shrink: 0;
    padding: 4px 0 8px;
    animation: searchEnter 0.8s var(--spring) 0.1s both;
}
@keyframes searchEnter {
    0% { opacity: 0; transform: translateX(30px) scale(0.95); }
    100% { opacity: 1; transform: translateX(0) scale(1); }
}
.search-box {
    display: flex;
    align-items: center;
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: 100px;
    padding: 2px 2px 2px 18px;
    border: 1px solid var(--card-border);
    transition: border-color 0.3s var(--smooth), box-shadow 0.3s var(--smooth), transform 0.3s var(--spring), background 0.3s;
    position: relative;
}
.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--glow-color), var(--card-shadow);
    transform: scale(1.01);
    background: var(--card-hover);
}
.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 0.95rem;
    color: var(--text-primary);
    padding: 10px 0;
    min-width: 0;
}
.search-box input::placeholder { color: var(--text-muted); opacity: 0.6; }
.search-box .clear-btn {
    background: transparent;
    border: none;
    width: 28px; height: 28px;
    border-radius: 50%;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s var(--spring), background 0.2s;
    font-size: 0.7rem;
}
.search-box .clear-btn.visible { opacity: 0.6; pointer-events: auto; }
.search-box .clear-btn:hover { background: rgba(255,255,255,0.05); opacity: 1; }
.search-box .search-btn {
    background: var(--primary);
    border: none;
    width: 40px; height: 40px;
    border-radius: 100px;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    transition: transform 0.25s var(--spring), background 0.3s, box-shadow 0.3s;
    flex-shrink: 0;
}
.search-box .search-btn:active { transform: scale(0.85); }
.search-box .search-btn:hover { box-shadow: 0 0 24px var(--glow-color); }

/* ===== SEARCH HISTORY ===== */
.history-dropdown {
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-md);
    padding: 8px 4px;
    border: 1px solid var(--card-border);
    margin-top: 6px;
    display: none;
    animation: historySlide 0.3s var(--spring);
    max-height: 180px;
    overflow-y: auto;
}
.history-dropdown.active { display: block; }
@keyframes historySlide {
    0% { opacity: 0; transform: translateY(-10px) scale(0.96); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}
.history-head {
    display: flex;
    justify-content: space-between;
    padding: 4px 12px 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--card-border);
}
.history-head button {
    background: transparent;
    border: none;
    color: var(--primary-light);
    cursor: pointer;
    font-size: 0.75rem;
    transition: transform 0.2s var(--spring), opacity 0.2s;
}
.history-head button:active { transform: scale(0.9); opacity: 0.7; }
.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s, transform 0.15s var(--spring);
    color: var(--text-secondary);
    font-size: 0.85rem;
}
.history-item:hover { background: var(--card-hover); }
.history-item:active { transform: scale(0.97); }
.history-item span { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.history-item .del-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s, transform 0.2s var(--spring);
    font-size: 0.7rem;
    opacity: 0.4;
}
.history-item .del-btn:hover { opacity: 1; color: var(--accent); }
.history-item .del-btn:active { transform: scale(0.8); }

/* ============================================================
   TAB BAR
   ============================================================ */
.tab-bar {
    display: flex;
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-md);
    padding: 3px;
    position: relative;
    border: 1px solid var(--card-border);
    flex-shrink: 0;
    animation: tabEnter 0.7s var(--spring) 0.2s both;
    margin-bottom: 12px;
}
@keyframes tabEnter {
    0% { opacity: 0; transform: scale(0.92) translateY(12px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}
.tab-indicator {
    position: absolute;
    top: 3px;
    bottom: 3px;
    left: 3px;
    width: calc(20% - 6px);
    background: var(--primary);
    border-radius: var(--radius-sm);
    transition: left 0.4s var(--spring), width 0.4s var(--spring);
    z-index: 0;
    box-shadow: 0 0 30px var(--glow-color);
    opacity: 0.8;
}
.tab-item {
    flex: 1;
    text-align: center;
    padding: 8px 2px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    z-index: 1;
    transition: color 0.3s var(--smooth), transform 0.2s var(--spring);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    border-radius: var(--radius-sm);
}
.tab-item:active { transform: scale(0.92); }
.tab-item.active { color: #fff; }
.tab-item i { font-size: 0.85rem; }

/* ============================================================
   PANELS
   ============================================================ */
.panel-container {
    flex: 1;
    overflow: hidden;
    position: relative;
    min-height: 0;
}
.panel {
    position: absolute;
    inset: 0;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 2px 0 80px;
    opacity: 0;
    transform: perspective(800px) rotateY(10deg) translateX(18px) scale(0.96);
    transform-origin: left center;
    pointer-events: none;
    transition: opacity 0.5s var(--smooth), transform 0.5s var(--spring);
    will-change: transform, opacity;
    backface-visibility: hidden;
}
.panel.active {
    opacity: 1;
    transform: perspective(800px) rotateY(0deg) translateX(0) scale(1);
    pointer-events: auto;
}
.panel .empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 60%;
    color: var(--text-muted);
    text-align: center;
    gap: 12px;
}
.panel .empty-state i { font-size: 3rem; opacity: 0.3; }
.panel .empty-state p { font-size: 0.9rem; }

/* ============================================================
   SONG CARD
   ============================================================ */
.song-list { display: flex; flex-direction: column; gap: 2px; }
.song-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    background: transparent;
    transition: background 0.25s var(--smooth), transform 0.2s var(--spring), box-shadow 0.3s;
    cursor: pointer;
    position: relative;
    opacity: 0;
    animation: cardEnter 0.5s var(--spring) forwards;
    will-change: transform;
}
.song-card:nth-child(1) { animation-delay: 0.02s; }
.song-card:nth-child(2) { animation-delay: 0.06s; }
.song-card:nth-child(3) { animation-delay: 0.10s; }
.song-card:nth-child(4) { animation-delay: 0.14s; }
.song-card:nth-child(5) { animation-delay: 0.18s; }
.song-card:nth-child(6) { animation-delay: 0.22s; }
.song-card:nth-child(7) { animation-delay: 0.26s; }
.song-card:nth-child(8) { animation-delay: 0.30s; }
.song-card:nth-child(9) { animation-delay: 0.34s; }
.song-card:nth-child(10) { animation-delay: 0.38s; }
@keyframes cardEnter {
    0% { opacity: 0; transform: translateX(-20px) scale(0.96); }
    100% { opacity: 1; transform: translateX(0) scale(1); }
}
.song-card:hover { background: var(--card-hover); transform: translateY(-3px); box-shadow: 0 8px 24px rgba(108,92,231,0.12); }
.song-card:active { transform: scale(0.98); }
.song-card.active { background: var(--card-hover); box-shadow: 0 0 0 1px var(--primary) inset; }
.song-card .ripple {
    position: absolute;
    border-radius: 50%;
    background: var(--glow-color);
    transform: scale(0);
    animation: rippleAnim 0.9s var(--ease-out) forwards;
    pointer-events: none;
}
@keyframes rippleAnim { to { transform: scale(4); opacity: 0; } }
.song-index {
    width: 22px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    text-align: center;
    flex-shrink: 0;
}
.song-cover {
    width: 44px; height: 44px;
    border-radius: var(--radius-sm);
    background: var(--card-border);
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: transform 0.3s var(--spring), box-shadow 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.song-cover img { width: 100%; height: 100%; object-fit: cover; }
.song-cover .play-ring {
    position: absolute;
    inset: -3px;
    border-radius: calc(var(--radius-sm) + 3px);
    border: 2px solid var(--primary);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}
.song-cover.playing .play-ring { opacity: 1; animation: ringPulse 1.8s ease-out infinite; }
.song-cover.playing .play-ring::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: calc(var(--radius-sm) + 6px);
    border: 2px solid var(--primary);
    animation: ringPulse 1.8s ease-out 0.6s infinite;
}
@keyframes ringPulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.3); opacity: 0; }
}
.song-info { flex: 1; min-width: 0; }
.song-title {
    font-weight: 500;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color 0.3s;
}
.song-artist {
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.song-actions { display: flex; gap: 2px; flex-shrink: 0; }
.song-actions button {
    background: transparent;
    border: none;
    width: 34px; height: 34px;
    border-radius: 50%;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s var(--spring), color 0.2s, background 0.2s;
    font-size: 0.85rem;
}
.song-actions button:active { transform: scale(0.8); }
.song-actions button:hover { color: var(--primary-light); background: rgba(255,255,255,0.04); }
.song-actions .play-btn { color: var(--primary-light); }
.song-actions .play-btn:hover { color: var(--primary); }

/* ============================================================
   SKELETON
   ============================================================ */
.skeleton { display: flex; flex-direction: column; gap: 8px; padding: 4px 0; }
.skeleton-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; }
.skeleton-cover {
    width: 44px; height: 44px;
    border-radius: var(--radius-sm);
    background: var(--card-border);
    animation: shimmer 1.6s ease-in-out infinite;
}
.skeleton-line {
    height: 12px;
    border-radius: 6px;
    background: var(--card-border);
    animation: shimmer 1.6s ease-in-out infinite;
}
.skeleton-line.short { width: 55%; }
.skeleton-line.long { width: 80%; }
.skeleton-info { flex: 1; display: flex; flex-direction: column; gap: 6px; }
@keyframes shimmer {
    0% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.01); }
    100% { opacity: 0.4; transform: scale(1); }
}

/* ============================================================
   MINI PLAYER
   ============================================================ */
.mini-player {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(30px) scale(0.9);
    width: calc(100% - 32px);
    max-width: 464px;
    background: var(--card-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-radius: var(--radius-lg);
    padding: 8px 14px 8px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--card-border);
    box-shadow: 0 12px 48px var(--shadow-color), 0 0 0 1px rgba(255,255,255,0.03) inset;
    transition: transform 0.6s var(--spring), opacity 0.5s var(--smooth), bottom 0.5s var(--smooth);
    opacity: 0;
    pointer-events: none;
    z-index: 100;
    flex-wrap: wrap;
}
.mini-player.visible {
    transform: translateX(-50%) translateY(0) scale(1);
    opacity: 1;
    pointer-events: auto;
}
.mini-cover {
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
    background: var(--card-border);
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s var(--spring), box-shadow 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.mini-cover:active { transform: scale(0.9); }
.mini-cover img { width: 100%; height: 100%; object-fit: cover; }
.mini-info { flex: 1; min-width: 0; overflow: hidden; }
.mini-title {
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mini-artist {
    font-size: 0.65rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.mini-controls { display: flex; align-items: center; gap: 2px; }
.mini-controls button {
    background: transparent;
    border: none;
    width: 36px; height: 36px;
    border-radius: 50%;
    color: var(--primary-light);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.25s var(--spring), color 0.3s, background 0.2s;
}
.mini-controls button:active { transform: scale(0.8); }
.mini-controls button:hover { background: rgba(255,255,255,0.04); }
.mini-progress {
    width: 100%;
    height: 2px;
    background: var(--card-border);
    border-radius: 2px;
    overflow: hidden;
    flex: 0 0 100%;
    order: 3;
    margin-top: 4px;
}
.mini-progress .fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent), var(--primary));
    background-size: 300% 100%;
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s linear;
    animation: progressSheen 4s linear infinite;
    will-change: background-position;
}