:root {
    --bg-color: #0a0a0a;
    --text-color: #ffffff;
    --accent-color: #bb86fc;
    --secondary-color: #03dac6;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(255, 255, 255, 0.1);
    --font-main: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Image Integration */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../mneuronico.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    filter: blur(10px) grayscale(50%);
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.profile-pic {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-color);
}

h1 {
    font-weight: 600;
    font-size: 1.5rem;
    letter-spacing: 1px;
}

.nav-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-family: var(--font-main);
}

.nav-btn:hover {
    background: var(--accent-color);
    color: #000;
    transform: translateY(-2px);
}

.nav-btn.secondary {
    background: transparent;
    border-color: var(--glass-border);
}

.nav-btn.secondary:hover {
    background: var(--glass-border);
    color: var(--text-color);
}

/* Main Content */
#main-content {
    flex: 1;
    padding: 2rem;
    padding-bottom: 180px;
    /* Increased space for player */
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Intro */
.intro-text {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    border-left: 4px solid var(--accent-color);
    line-height: 1.6;
    color: #ddd;
}

.song-count {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
}

/* Banner */
.banner-container {
    display: none;
    /* Hidden by default, shown via JS */
    position: relative;
    height: 200px;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 2rem;
    background: #000;
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: transform 0.3s;
}

.banner-container.visible {
    display: flex;
    align-items: center;
}

.banner-container:hover {
    transform: scale(1.01);
}

.banner-cover {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    transition: opacity 1s;
}

.banner-cover.fade-in {
    animation: fadeInCover 1s ease;
}

@keyframes fadeInCover {
    from {
        opacity: 0;
    }

    to {
        opacity: 0.4;
    }
}

.banner-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    width: 100%;
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.banner-label {
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.banner-info {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.banner-hint {
    font-size: 0.8rem;
    color: #aaa;
}

/* Album Grid */
.album-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 2rem;
}

.album-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.album-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-color);
}

.cover-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    overflow: hidden;
}

.album-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.album-card:hover .album-cover {
    transform: scale(1.05);
}

.badge-recommended {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent-color);
    color: #000;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.album-info {
    padding: 1rem;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.album-title {
    font-weight: 600;
    font-size: 1.1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.album-tracks-count {
    font-size: 0.8rem;
    color: #aaa;
    margin-top: 0.25rem;
}

/* Album View */
.album-view {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    backdrop-filter: blur(20px);
    animation: fadeIn 0.5s ease;
}

.album-header {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    align-items: flex-end;
}

.album-view-cover {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    object-fit: cover;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
}

.album-details h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.album-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.back-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.back-btn:hover {
    opacity: 1;
}

.track-list {
    list-style: none;
}

.track-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--glass-border);
    cursor: pointer;
    transition: background 0.2s;
    border-radius: 4px;
}

.track-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.track-item.active {
    background: rgba(187, 134, 252, 0.2);
    color: var(--accent-color);
}

.track-left {
    display: flex;
    align-items: center;
}

.track-number {
    margin-right: 1rem;
    color: #aaa;
    width: 20px;
}

.share-track-btn {
    background: none;
    border: none;
    color: #aaa;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: all 0.2s;
    opacity: 0;
}

.track-item:hover .share-track-btn {
    opacity: 1;
}

.share-track-btn:hover {
    color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
}

/* Player Bar */
.player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    align-items: center;
    gap: 2rem;
    z-index: 200;
}

.track-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.player-cover {
    width: 50px;
    height: 50px;
    border-radius: 4px;
    object-fit: cover;
}

.track-details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#player-title {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#player-album {
    font-size: 0.8rem;
    color: #aaa;
}

.player-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
}

.control-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    transition: transform 0.2s, color 0.2s;
}

.control-btn:hover {
    color: var(--accent-color);
    transform: scale(1.1);
}

.play-btn {
    width: 40px;
    height: 40px;
    background: var(--text-color);
    color: var(--bg-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn:hover {
    background: var(--accent-color);
    color: #000;
}

.player-progress {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    grid-column: 2;
    margin-top: 0.5rem;
}

input[type="range"] {
    width: 100%;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    appearance: none;
    cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-color);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.5);
}

.volume-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    justify-content: flex-end;
}

.volume-control input {
    width: 80px;
}

/* Utilities */
.hidden {
    display: none !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .player-bar {
        grid-template-columns: 1fr;
        padding: 1rem;
        gap: 1rem;
    }

    .track-info {
        justify-content: center;
    }

    .player-controls {
        grid-row: 2;
    }

    .player-progress {
        grid-row: 3;
        grid-column: 1;
    }

    .volume-control {
        display: none;
        /* Hide volume on mobile to save space */
    }

    .album-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .banner-container {
        height: 150px;
    }

    .banner-info {
        font-size: 1.2rem;
    }
}