/* ==========================================================================
   Music Player - Modern Dark Theme (Spotify & Studio Inspired)
   Optimized for Viewport Fit & Compact Professional Ergonomics
   ========================================================================== */

:root {
    --font-primary: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Dark Theme Surface Colors */
    --bg-app: #080c14;
    --bg-header: rgba(13, 18, 29, 0.88);
    --bg-card: rgba(18, 24, 38, 0.76);
    --bg-card-hover: rgba(23, 31, 48, 0.85);
    --bg-surface: rgba(255, 255, 255, 0.05);
    --bg-surface-hover: rgba(255, 255, 255, 0.09);
    --bg-surface-active: rgba(99, 102, 241, 0.18);

    /* Vibrant Brand Accents */
    --accent-indigo: #6366f1;
    --accent-violet: #8b5cf6;
    --accent-purple: #a855f7;
    --accent-cyan: #06b6d4;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --accent-gradient-hover: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #9333ea 100%);
    --accent-glow: rgba(99, 102, 241, 0.35);
    --accent-glow-strong: rgba(168, 85, 247, 0.45);

    /* Typography Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-highlight: #c7d2fe;

    /* Delicate Glass & Borders */
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-hover: rgba(255, 255, 255, 0.16);
    --border-accent: rgba(99, 102, 241, 0.45);

    /* Soft Shadows & Elevation */
    --shadow-header: 0 4px 24px -2px rgba(0, 0, 0, 0.5), 0 1px 0 rgba(255, 255, 255, 0.05);
    --shadow-card: 0 20px 45px -10px rgba(0, 0, 0, 0.7), 0 0 30px rgba(99, 102, 241, 0.1);
    --shadow-btn: 0 6px 20px rgba(99, 102, 241, 0.4);
    --shadow-btn-hover: 0 8px 25px rgba(168, 85, 247, 0.55);

    /* Transitions */
    --transition-fast: 0.16s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   CSS Reset & Base
   ========================================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-app);
    background-image: 
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(99, 102, 241, 0.2), transparent 70%),
        radial-gradient(circle at 10% 40%, rgba(168, 85, 247, 0.1), transparent 45%),
        radial-gradient(circle at 90% 70%, rgba(6, 182, 212, 0.08), transparent 40%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.container {
    max-width: 1060px;
    margin: 0 auto;
    padding: 0 1.25rem;
    width: 100%;
}

/* ==========================================================================
   Header Component
   ========================================================================== */
.main-header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-header);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    box-shadow: var(--shadow-header);
    flex-shrink: 0;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
}

/* Logo */
.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    text-decoration: none;
    user-select: none;
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: translateY(-1px);
}

.logo-icon-wrapper {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.35);
    transition: all var(--transition-smooth);
}

.logo:hover .logo-icon-wrapper {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--border-accent);
    box-shadow: 0 0 16px var(--accent-glow);
}

.logo-img {
    width: 28px;
    height: 28px;
    display: block;
    object-fit: contain;
    filter: drop-shadow(0 2px 6px rgba(99, 102, 241, 0.4));
    transition: transform var(--transition-smooth);
}

.logo:hover .logo-img {
    transform: scale(1.06) rotate(-3deg);
}

.logo-info {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.logo-highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 800;
}

/* Search Bar */
.searchBar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    max-width: 440px;
}

.search-input-box {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 0 0.85rem;
    height: 38px;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-smooth);
}

.search-input-box:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-glass-hover);
}

.search-input-box:focus-within {
    background: rgba(18, 24, 38, 0.95);
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.22);
}

.search-svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.search-input-box:focus-within .search-svg {
    color: var(--accent-indigo);
    transform: scale(1.08);
}

#inputSearch {
    width: 100%;
    height: 100%;
    padding: 0 0.5rem;
    border: none;
    outline: none;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.88rem;
    font-weight: 400;
}

#inputSearch::placeholder {
    color: var(--text-muted);
    font-size: 0.84rem;
}

.clear-search-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    height: 100%;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.clear-search-btn:hover {
    color: var(--text-primary);
    transform: scale(1.15);
}

.clear-search-btn svg {
    width: 14px;
    height: 14px;
}

#btnSearch {
    height: 38px;
    padding: 0 1.15rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border: none;
    border-radius: 12px;
    background: var(--accent-gradient);
    color: #ffffff;
    font-family: inherit;
    font-size: 0.86rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-btn);
    transition: all var(--transition-smooth);
    white-space: nowrap;
    user-select: none;
}

#btnSearch:hover {
    background: var(--accent-gradient-hover);
    box-shadow: var(--shadow-btn-hover);
    transform: translateY(-1px);
}

#btnSearch:active {
    transform: translateY(0.5px);
}

.btn-icon {
    width: 15px;
    height: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast);
}

#btnSearch:hover .btn-icon {
    transform: translateX(2px);
}

/* ==========================================================================
   Main Content & Balanced Player Layout
   ========================================================================== */
.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 0;
}

.player-layout {
    display: grid;
    grid-template-columns: minmax(300px, 380px) minmax(300px, 390px);
    gap: 1.5rem;
    align-items: stretch;
    justify-content: center;
}

/* ==========================================================================
   Main Player Card (Compact & Perfectly Visible)
   ========================================================================== */
.player-card {
    background: var(--bg-card);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-glass);
    border-radius: 22px;
    padding: 1.25rem 1.45rem;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-smooth), border-color var(--transition-smooth);
}

.player-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 90px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, transparent 100%);
    pointer-events: none;
}

/* Card Header & Badges */
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.now-playing-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(99, 102, 241, 0.14);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 18px;
    padding: 0.22rem 0.65rem;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-highlight);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-indigo);
    box-shadow: 0 0 6px var(--accent-indigo);
    display: inline-block;
    transition: all var(--transition-fast);
}

.playing .pulse-dot {
    background: #22c55e;
    box-shadow: 0 0 8px #22c55e;
    animation: pulseGlow 1.6s infinite ease-in-out;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.35); opacity: 1; }
}

.track-counter {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* Album Art Section (Compact & Dynamic) */
.track-art-wrapper {
    position: relative;
    width: 100%;
    max-width: 195px;
    aspect-ratio: 1 / 1;
    margin: 0 auto 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.album-glow {
    position: absolute;
    inset: -10px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(20px);
    opacity: 0.6;
    transition: opacity var(--transition-smooth), transform var(--transition-smooth);
    pointer-events: none;
}

.playing .album-glow {
    opacity: 0.95;
    transform: scale(1.06);
}

.trackArt {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 12px 28px -4px rgba(0, 0, 0, 0.6), 0 0 0 1px var(--border-glass);
    transition: all var(--transition-bounce);
    background: #111726;
}

.trackArt img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.playing .trackArt {
    box-shadow: 0 16px 32px -4px rgba(0, 0, 0, 0.75), 0 0 20px var(--accent-glow);
    transform: scale(1.02);
}

.playing .trackArt img {
    transform: scale(1.04);
}

.vinyl-center-hole {
    display: none;
}

/* Track Metadata */
.track-meta {
    text-align: center;
    margin-bottom: 0.75rem;
}

.track-title {
    font-size: 1.12rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 0.2rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.track-artist {
    font-size: 0.86rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.15rem;
}

.track-album {
    font-size: 0.74rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==========================================================================
   Progress Bar & Range Sliders
   ========================================================================== */
.progress-section {
    margin-bottom: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.progress-bar-container {
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
}

/* Custom Range Input */
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 5px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    outline: none;
    cursor: pointer;
    transition: height var(--transition-fast), background var(--transition-fast);
}

input[type="range"]:hover {
    height: 7px;
}

/* Webkit Track Thumb */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.4), 0 0 0 2.5px var(--accent-indigo);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"]:hover::-webkit-slider-thumb {
    transform: scale(1.2);
    box-shadow: 0 0 12px var(--accent-indigo), 0 0 0 2.5px #ffffff;
}

/* Firefox Track Thumb */
input[type="range"]::-moz-range-thumb {
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: #ffffff;
    border: none;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.4), 0 0 0 2.5px var(--accent-indigo);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="range"]:hover::-moz-range-thumb {
    transform: scale(1.2);
    box-shadow: 0 0 12px var(--accent-indigo), 0 0 0 2.5px #ffffff;
}

.time-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.74rem;
    font-weight: 500;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Playback Controls Section
   ========================================================================== */
.controls-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.85rem;
    margin-bottom: 0.85rem;
}

.control-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-fast);
    user-select: none;
}

.control-btn:hover {
    color: var(--text-primary);
    transform: scale(1.06);
}

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

.small-btn {
    width: 34px;
    height: 34px;
    color: var(--text-muted);
}

.small-btn svg {
    width: 17px;
    height: 17px;
}

.small-btn.active {
    color: var(--accent-indigo);
    background: rgba(99, 102, 241, 0.22);
    border: 1px solid rgba(99, 102, 241, 0.45);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.35);
}

.action-btn {
    width: 40px;
    height: 40px;
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
}

.action-btn svg {
    width: 19px;
    height: 19px;
}

.action-btn:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-glass-hover);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

.play-btn {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: var(--shadow-btn);
    transition: all var(--transition-bounce);
}

.play-btn:hover {
    background: var(--accent-gradient-hover);
    box-shadow: var(--shadow-btn-hover);
    transform: scale(1.06) translateY(-1px);
    color: #ffffff;
}

.play-btn:active {
    transform: scale(0.96) translateY(0);
}

.play-btn svg {
    width: 22px;
    height: 22px;
}

/* ==========================================================================
   Volume Section
   ========================================================================== */
.volume-section {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.42rem 0.85rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    width: 100%;
    max-width: 240px;
    margin: 0 auto;
}

.volume-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.volume-btn:hover {
    color: var(--text-primary);
}

.volume-icon {
    width: 16px;
    height: 16px;
}

.volume-slider-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
}

/* ==========================================================================
   Up Next Playlist Section (Balanced with Player Card)
   ========================================================================== */
.playlist-section {
    background: var(--bg-card);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-glass);
    border-radius: 22px;
    padding: 1.25rem 1.3rem;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 510px;
}

.playlist-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid var(--border-glass);
    flex-shrink: 0;
}

.playlist-title-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.playlist-icon {
    width: 18px;
    height: 18px;
    color: var(--accent-indigo);
}

.playlist-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.playlist-header-actions {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.playlist-header-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.playlist-header-btn:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
    border-color: var(--border-accent);
}

.playlist-header-btn svg {
    width: 14px;
    height: 14px;
}

.playlist-count {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--bg-surface);
    padding: 0.15rem 0.55rem;
    border-radius: 10px;
}

.retry-btn {
    margin-top: 0.4rem;
    padding: 0.45rem 0.95rem;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--accent-gradient);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.retry-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-btn);
}

.retry-btn svg {
    width: 13px;
    height: 13px;
}

.playlist-container {
    flex: 1;
    overflow-y: auto;
    padding-right: 0.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

/* Custom Scrollbar for Playlist */
.playlist-container::-webkit-scrollbar {
    width: 4px;
}

.playlist-container::-webkit-scrollbar-track {
    background: transparent;
}

.playlist-container::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}

.playlist-container::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Playlist Item */
.playlist-item {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.45rem 0.7rem;
    border-radius: 12px;
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    flex-shrink: 0;
}

.playlist-item:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-glass);
    transform: translateX(3px);
}

.playlist-item.active {
    background: var(--bg-surface-active);
    border-color: var(--border-accent);
}

.playlist-item-art {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
}

.playlist-item-info {
    flex: 1;
    min-width: 0;
}

.playlist-item-title {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.1rem;
}

.playlist-item.active .playlist-item-title {
    color: var(--text-highlight);
    font-weight: 700;
}

.playlist-item-artist {
    font-size: 0.74rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-item-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.playlist-item-duration {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

/* Equalizer Bars */
.equalizer {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 12px;
    width: 12px;
}

.equalizer-bar {
    width: 2.5px;
    background: var(--accent-indigo);
    border-radius: 1.5px;
    animation: eqPulse 1.2s infinite ease-in-out;
}

.equalizer-bar:nth-child(1) { height: 60%; animation-delay: 0.1s; }
.equalizer-bar:nth-child(2) { height: 100%; animation-delay: 0.3s; }
.equalizer-bar:nth-child(3) { height: 40%; animation-delay: 0.2s; }

@keyframes eqPulse {
    0%, 100% { transform: scaleY(0.4); }
    50% { transform: scaleY(1); }
}

/* Playlist Placeholder & Spinner */
.playlist-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    height: 160px;
    color: var(--text-muted);
    font-size: 0.85rem;
    text-align: center;
}

.spinner {
    width: 26px;
    height: 26px;
    border: 2.5px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-indigo);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: rgba(18, 24, 38, 0.95);
    border: 1px solid var(--border-accent);
    color: var(--text-primary);
    padding: 0.65rem 1.25rem;
    border-radius: 14px;
    font-size: 0.86rem;
    font-weight: 500;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(16px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-bounce);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

/* ==========================================================================
   Responsive Adaptations & Short Screen Tuning
   ========================================================================== */
@media (max-height: 740px) {
    .main-content {
        padding: 0.5rem 0;
    }

    .track-art-wrapper {
        max-width: 160px;
        margin-bottom: 0.6rem;
    }

    .player-card {
        padding: 1rem 1.25rem;
    }

    .playlist-section {
        max-height: 460px;
    }
}

@media (max-width: 860px) {
    .player-layout {
        grid-template-columns: minmax(300px, 440px);
        gap: 1.5rem;
    }

    .playlist-section {
        max-height: 360px;
    }
}

@media (max-width: 600px) {
    .header-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        padding-top: 0.6rem;
        padding-bottom: 0.6rem;
    }

    .searchBar {
        max-width: 100%;
    }

    .main-content {
        padding: 0.75rem 0;
    }

    .player-card {
        padding: 1.15rem 1.1rem;
        border-radius: 20px;
    }

    .track-art-wrapper {
        max-width: 170px;
        margin-bottom: 0.7rem;
    }

    .track-title {
        font-size: 1.05rem;
    }

    .controls-section {
        gap: 0.65rem;
    }

    .play-btn {
        width: 46px;
        height: 46px;
    }

    .action-btn {
        width: 36px;
        height: 36px;
    }
}