:root {
    --color-background: #000000;
    --color-surface: #1a1a1a;
    --color-primary: #3A86FF;
    --color-accent: #F72585;
    --color-text-primary: #E0E0E0;
    --color-text-secondary: #A0A0A0;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-shadow-light: rgba(0, 0, 0, 0.2);
    --color-shadow-medium: rgba(0, 0, 0, 0.4);
    --color-shadow-dark: rgba(0, 0, 0, 0.6);

    --font-sans: 'Inter', sans-serif;
    --font-size-base: 16px;

    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 40px;
    --spacing-xl: 60px;

    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-circle: 50%;

    --transition-duration-short: 0.2s;
    --transition-duration-medium: 0.4s;
    --transition-duration-long: 0.6s;
    --transition-duration-extra-long: 1s;
    --transition-easing-ease-out: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-easing-linear: linear;

    --sound-color-base: var(--color-primary);
    --sound-color-medium: #4CC9F0;
    --sound-color-loud: var(--color-accent);
    --glow-color: var(--color-accent);
    --glow-blur: 0px;
    --glow-spread: 0px;
    --glow-opacity: 0;

    --progress-fill: 0%;
    --volume-fill: 100%;

    --padding-mobile: 15px;
}

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--color-background);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    min-height: 120vh;
    overflow-x: hidden;
    overflow-y: auto;
    position: relative;
    transition: background-color var(--transition-duration-extra-long) var(--transition-easing-ease-out);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 999;
    box-shadow: inset 0 0 var(--glow-blur) var(--glow-spread) var(--glow-color);
    opacity: var(--glow-opacity);
    transition: opacity var(--transition-duration-short) var(--transition-easing-linear),
                box-shadow var(--transition-duration-short) var(--transition-easing-linear);
}

body::-webkit-scrollbar {
    width: 0;
    height: 0;
}
body::-webkit-scrollbar-thumb {
    background-color: transparent;
}
body::-webkit-scrollbar-track {
    background-color: transparent;
}

#background-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 1;
    transform: scale(1);
    transition: opacity var(--transition-duration-extra-long), transform var(--transition-duration-extra-long);
}

.scroll-text-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: -1;
    opacity: 0;
    transform: scale(1.2);
    background-color: var(--color-background);
    transition: opacity var(--transition-duration-extra-long), transform var(--transition-duration-extra-long);
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.page-content {
    position: relative;
    z-index: 10;
    padding: var(--spacing-xl) var(--spacing-md) 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 1;
    transform: translateY(0);
    transition: opacity var(--transition-duration-long), transform var(--transition-duration-long), visibility var(--transition-duration-long), filter var(--transition-duration-medium);
}

.main-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}
.main-header h1 {
    font-size: clamp(3rem, 10vw, 5rem);
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-text-primary);
}

.music-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    width: 100%;
    max-width: 1300px;
    justify-content: center;
    margin-left: 263px;
}

.music-card {
    cursor: pointer;
    background-color: transparent;
    transition: transform var(--transition-duration-medium), opacity var(--transition-duration-medium);
    animation: scaleIn var(--transition-duration-medium) backwards;
}
.music-card:nth-child(1) { animation-delay: 0.07s; }
.music-card:nth-child(2) { animation-delay: 0.14s; }
.music-card:nth-child(3) { animation-delay: 0.21s; }
.music-card:nth-child(4) { animation-delay: 0.28s; }

.card-art-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 var(--spacing-sm) 24px var(--color-shadow-medium);
    transition: box-shadow var(--transition-duration-medium);
}
.card-art-wrapper img {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-duration-medium);
}

.play-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 50px;
    height: 50px;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    border-radius: var(--border-radius-circle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: var(--transition-duration-short);
}
.play-indicator svg {
    width: 24px;
    height: 24px;
}

.music-card:hover .card-art-wrapper img {
    transform: scale(1.1);
}
.music-card:hover .play-indicator {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}
.music-card:hover .card-art-wrapper {
    box-shadow: 0 12px 32px var(--color-shadow-dark);
}

.music-card.playing .card-art-wrapper {
    box-shadow: 0 0 20px 5px var(--color-primary);
    transition: box-shadow 0.3s ease-in-out;
}
.music-card.playing .play-indicator {
    opacity: 0 !important;
}

.player-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    position: fixed;
    z-index: 1000;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 800px;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    display: flex;
    flex-direction: column;
    box-shadow: 0 var(--spacing-sm) 30px var(--color-shadow-light);
    opacity: 1;
    transition: opacity var(--transition-duration-long), transform var(--transition-duration-long), visibility var(--transition-duration-long), bottom var(--transition-duration-long);
}

#visualizer-wrapper {
    position: absolute;
    bottom: calc(101% - 1px);
    left: 0;
    width: 100%;
    height: 60px;
    padding: 0 var(--spacing-md);
    filter: drop-shadow(0 -4px 15px var(--color-shadow-medium));
}
#visualizer {
    width: 100%;
    height: 100%;
}

.progress-container {
    width: 100%;
    margin-bottom: var(--spacing-sm);
}
.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.player-controls {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: var(--spacing-md);
}

.track-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    justify-self: start;
}
#current-track-cover {
    width: 40px;
    height: 40px;
    border-radius: 4px;
    object-fit: cover;
}
.track-text-wrapper {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
#current-title {
    display: block;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
}
#current-artist {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
}

.main-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
}

.control-btn {
    background: transparent;
    border: none;
    border-radius: var(--border-radius-circle);
    width: 45px;
    height: 45px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-duration-short);
    flex-shrink: 0;
}
.control-btn:hover {
    color: white;
    background-color: rgba(255, 255, 255, 0.05);
}
.control-btn:active {
    transform: scale(0.9);
}
.control-btn.active {
    color: var(--color-primary);
}
.control-btn svg {
    width: 22px;
    height: 22px;
}

.play-btn {
    width: 54px;
    height: 54px;
    background-color: var(--color-primary);
    color: white;
}
.play-btn:hover {
    transform: scale(1.05);
    filter: brightness(1.1);
}
.play-btn:active {
    transform: scale(1);
}

.side-controls {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--spacing-xs);
}

.volume-control {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

#volume-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: var(--spacing-sm);
    background: #111;
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-duration-short), visibility var(--transition-duration-short);
    pointer-events: none;
}
.volume-control:hover #volume-tooltip {
    opacity: 1;
    visibility: visible;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
    width: 100%;
    height: 16px;
}
input[type="range"]::-webkit-slider-runnable-track {
    height: 4px;
    border-radius: 2px;
}
input[type="range"]::-moz-range-track {
    height: 4px;
    border-radius: 2px;
}
#progress-bar::-webkit-slider-runnable-track {
    background: linear-gradient(to right, var(--color-primary) var(--progress-fill), rgba(255, 255, 255, 0.1) var(--progress-fill));
}
#progress-bar::-moz-range-track {
    background: linear-gradient(to right, var(--color-primary) var(--progress-fill), rgba(255, 255, 255, 0.1) var(--progress-fill));
}
#volume-slider::-webkit-slider-runnable-track {
    background: linear-gradient(to right, var(--color-primary) var(--volume-fill), rgba(255, 255, 255, 0.1) var(--volume-fill));
}
#volume-slider::-moz-range-track {
    background: linear-gradient(to right, var(--color-primary) var(--volume-fill), rgba(255, 255, 255, 0.1) var(--volume-fill));
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    margin-top: -6px;
    background-color: var(--color-text-primary);
    height: 16px;
    width: 16px;
    border-radius: var(--border-radius-circle);
    transition: transform var(--transition-duration-short);
}
input[type="range"]:hover::-webkit-slider-thumb {
    transform: scale(1.2);
    background-color: white;
}
input[type="range"]::-moz-range-thumb {
    border: none;
    background-color: var(--color-text-primary);
    height: 16px;
    width: 16px;
    border-radius: var(--border-radius-circle);
    transition: transform var(--transition-duration-short);
}
input[type="range"]:hover::-moz-range-thumb {
    transform: scale(1.2);
    background-color: white;
}
#volume-slider {
    max-width: 100px;
}

.music-details-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    max-width: 1200px;
    width: 100%;
    justify-content: center;
    align-items: flex-start;
    height: 100%;
    transition: all var(--transition-duration-long);
}

.music-detail-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background-color: var(--color-surface);
    border-radius: var(--border-radius-md);
    padding: 30px;
    box-shadow: 0 var(--spacing-sm) 30px var(--color-shadow-medium);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-duration-long), transform var(--transition-duration-long),
                box-shadow var(--transition-duration-long);
    width: calc(33.333% - 27px);
    min-width: 280px;
    max-width: 380px;
    pointer-events: auto;
}

.music-detail-item.active {
    opacity: 1;
    transform: translateY(0);
}

.music-details-list.single-active {
    justify-content: center;
    align-items: center;
    display: flex;
    position: relative;
    width: 100%;
    height: 100%;
}

.music-details-list.single-active .music-detail-item:not(.is-playing-detail) {
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    width: 0;
    height: 0;
    padding: 0;
    margin: 0;
    min-width: 0;
    max-width: 0;
    overflow: hidden;
    transform: scale(0.8) translateY(20px);
    transition: opacity var(--transition-duration-long), transform var(--transition-duration-long),
                width var(--transition-duration-long), height var(--transition-duration-long),
                padding var(--transition-duration-long), margin var(--transition-duration-long),
                min-width var(--transition-duration-long), max-width var(--transition-duration-long),
                visibility var(--transition-duration-long);
}

.music-details-list.single-active .music-detail-item.is-playing-detail {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0;
    width: 90vw;
    height: auto;
    max-width: 800px;
    max-height: 90vh;
    padding: 50px;
    overflow-y: auto;
    box-shadow: 0 15px 40px var(--color-shadow-dark);
    animation: fadeInScaleUp var(--transition-duration-long) forwards;
    pointer-events: auto;
    visibility: visible;
}

.music-details-list.single-active .music-detail-item.is-playing-detail .music-detail-item-cover {
    width: 200px;
    height: 200px;
    margin-bottom: 30px;
}
.music-details-list.single-active .music-detail-item.is-playing-detail h3 {
    font-size: clamp(2.5rem, 6vw, 4rem);
}
.music-details-list.single-active .music-detail-item.is-playing-detail p {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    max-width: 600px;
    margin-bottom: 25px;
}
.music-details-list.single-active .music-detail-item.is-playing-detail .music-detail-item-links a {
    padding: 12px 25px;
    font-size: 1.1rem;
}
.music-details-list.single-active .music-detail-item.is-playing-detail .music-detail-item-links a svg {
    width: 24px;
    height: 24px;
}

.music-detail-item-cover {
    width: 150px;
    height: 150px;
    border-radius: var(--border-radius-sm);
    object-fit: cover;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 5px 15px var(--color-shadow-light);
    transition: width var(--transition-duration-long), height var(--transition-duration-long), margin-bottom var(--transition-duration-long);
}

.music-detail-item h3 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
    transition: font-size var(--transition-duration-long);
}

.music-detail-item p {
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    color: var(--color-text-secondary);
    margin-bottom: 15px;
    line-height: 1.5;
    transition: font-size var(--transition-duration-long), max-width var(--transition-duration-long);
}

.music-detail-item-links {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 15px;
    flex-wrap: wrap;
    gap: 15px;
}

.music-detail-item-links a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--color-text-primary);
    font-size: 0.9em;
    padding: 8px 15px;
    border-radius: 8px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px var(--color-shadow-light);
    background-color: rgba(255, 255, 255, 0.05);
}

.music-detail-item-links a:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--color-shadow-medium);
    background-color: rgba(255, 255, 255, 0.1);
}

.music-detail-item-links a:has(.spotify-icon) {
    border-color: #1DB954;
}

.music-detail-item-links a:has(.youtube-icon) {
    border-color: #FF0000;
}

.music-detail-item-links a:has(.soundcloud-icon) {
    border-color: #FF7700;
}


.social-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    object-fit: contain;
    margin-right: 10px;
}

.social-icon:hover {
    filter: brightness(1.2);
}

.music-detail-item-links a svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
    transition: width var(--transition-duration-long), height var(--transition-duration-long);
}

body.scrolled-down #background-canvas {
    opacity: 0;
    transform: scale(0.8);
}

body.scrolled-down .scroll-text-container {
    opacity: 1;
    transform: scale(1);
    z-index: 1;
    pointer-events: auto;
}

body.scrolled-down .page-content {
    opacity: 0;
    transform: translateY(-50px);
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--transition-duration-long), transform var(--transition-duration-long), visibility var(--transition-duration-long);
}

body.scrolled-down .player-container {
    opacity: 0;
    transform: translateX(-50%) translateY(50px);
    pointer-events: none;
    visibility: hidden;
}

body.focus-mode .page-content {
    opacity: 0 !important;
    pointer-events: none !important;
    visibility: hidden !important;
    filter: none !important;
}

body.focus-mode #background-canvas {
    filter: blur(0) !important;
    opacity: 1 !important;
}
body.focus-mode .player-container {
    filter: blur(0) !important;
}
body.focus-mode .scroll-text-container {
    filter: blur(0) !important;
}

body.focus-mode > *:not(.player-container):not(#background-canvas):not(.scroll-text-container):not(.page-content) {
    filter: blur(5px);
    pointer-events: none;
    user-select: none;
    opacity: 0.7;
    transition: filter var(--transition-duration-medium), opacity var(--transition-duration-medium);
}

body.focus-mode .music-card.playing .card-art-wrapper {
    box-shadow: 0 0 30px 8px var(--color-primary),
                0 0 15px 3px rgba(58, 134, 255, 0.5);
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInScaleUp {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

.orientation-message {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    z-index: 2000;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--spacing-md);
}

.orientation-message p {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.orientation-message img {
    width: clamp(80px, 20vw, 150px);
    height: auto;
    animation: rotatePhone 2s infinite ease-in-out;
}

@keyframes rotatePhone {
    0% { transform: rotate(0deg); }
    50% { transform: rotate(90deg); }
    100% { transform: rotate(0deg); }
}

@media screen and (max-width: 768px) and (orientation: portrait) {
    .orientation-message {
        display: flex; 
    }

    .page-content,
    .player-container,
    #background-canvas,
    .scroll-text-container {
        display: none !important; 
    }
}


@media (max-width: 1024px) {
    .music-detail-item {
        width: calc(50% - 20px);
    }
    .music-details-list.single-active .music-detail-item.is-playing-detail {
        width: 95vw;
        padding: 40px;
    }
}

@media (max-width: 768px) {
    body {
        padding-bottom: 200px;
    }

    .page-content {
        padding: 30px var(--padding-mobile) 200px;
    }

    .main-header h1 {
        font-size: clamp(2.5rem, 12vw, 4rem);
        margin-bottom: 40px;
    }

    .music-grid {
        gap: var(--spacing-md);
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    .music-detail-item {
        width: 100%;
        max-width: 450px;
    }
    .music-details-list.single-active .music-detail-item.is-playing-detail {
        width: 95vw;
        padding: var(--spacing-md);
        flex-direction: column;
        justify-content: center;
    }
    .music-details-list.single-active .music-detail-item.is-playing-detail .music-detail-item-cover {
        width: 120px;
        height: 120px;
    }
    .music-details-list.single-active .music-detail-item.is-playing-detail h3 {
        font-size: clamp(2rem, 5vw, 3rem);
    }
    .music-details-list.single-active .music-detail-item.is-playing-detail p {
        font-size: clamp(0.9rem, 2.2vw, 1.1rem);
    }
    .player-container {
        padding: 15px;
    }
    .player-controls {
        grid-template-columns: 1fr;
        justify-items: center;
        gap: 15px;
    }
    .track-info, .side-controls {
        width: 100%;
        justify-content: center;
    }
    .main-controls {
        order: -1;
        margin-bottom: 0;
        gap: 10px;
    }
    .control-btn {
        width: 40px;
        height: 40px;
    }
    .play-btn {
        width: 50px;
        height: 50px;
    }
    #volume-slider {
        max-width: 80px;
    }
}

@media (max-width: 480px) {
    .page-content {
        padding: 20px var(--padding-mobile) 180px;
    }

    .main-header h1 {
        font-size: clamp(2rem, 10vw, 3.5rem);
        margin-bottom: 30px;
    }

    .music-grid {
        gap: 15px;
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .player-container {
        width: 100%;
        left: 0;
        transform: translateX(0);
        bottom: 0;
        border-radius: 0;
        padding: 10px var(--padding-mobile);
    }

    #visualizer-wrapper {
        height: 50px;
        padding: 0 var(--padding-mobile);
    }

    .player-controls {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .track-info {
        justify-content: center;
        gap: 10px;
    }

    .track-text-wrapper {
        text-align: center;
    }

    #current-track-cover {
        width: 35px;
        height: 35px;
    }

    .main-controls {
        flex-wrap: wrap;
        gap: 8px;
    }

    .control-btn {
        width: 38px;
        height: 38px;
    }
    .play-btn {
        width: 48px;
        height: 48px;
    }

    .side-controls {
        flex-direction: row;
        justify-content: center;
        gap: 10px;
    }

    #volume-slider {
        max-width: 70px;
    }

    .music-details-list.single-active .music-detail-item.is-playing-detail {
        padding: 25px var(--padding-mobile);
        max-height: 85vh;
    }

    .music-detail-item {
        padding: 20px;
    }
    .music-detail-item-cover {
        width: 100px;
        height: 100px;
    }
    .music-detail-item-links a {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    .music-detail-item-links a svg {
        width: 18px;
        height: 18px;
    }
}