/* BeMusic - Spotify Clone Incredible Green Design */

:root {
    --primary-green: #1DB954;
    --dark-green: #1ED760;
    --light-green: #1FDF64;
    --bg-dark: #121212;
    --bg-medium: #181818;
    --bg-light: #282828;
    --text-primary: #FFFFFF;
    --text-secondary: #B3B3B3;
    --text-dim: #535353;
    --sidebar-width: 240px;
    --player-height: 90px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: #000000;
    padding: 24px 12px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.logo {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 32px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.nav-menu {
    list-style: none;
    margin-bottom: 32px;
}

.nav-item {
    margin-bottom: 8px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    transition: var(--transition);
    font-size: 14px;
    font-weight: 600;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-light);
}

.nav-link.active {
    color: var(--text-primary);
    background-color: var(--bg-light);
}

.nav-link svg {
    width: 24px;
    height: 24px;
}

/* Main Content */
.main-content {
    flex: 1;
    background: linear-gradient(180deg, #1a1a1a 0%, var(--bg-dark) 100%);
    overflow-y: auto;
    padding-bottom: var(--player-height);
}

.top-bar {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.search-bar {
    display: flex;
    align-items: center;
    background-color: var(--bg-light);
    border-radius: 500px;
    padding: 8px 16px;
    max-width: 400px;
    flex: 1;
}

.search-bar input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    flex: 1;
    padding: 4px 8px;
    font-size: 14px;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn {
    padding: 8px 32px;
    border-radius: 500px;
    border: none;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: var(--primary-green);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: scale(1.04);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--text-secondary);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
    transform: scale(1.04);
}

.btn-danger {
    background-color: #E22134;
    color: var(--text-primary);
}

.btn-danger:hover {
    background-color: #C41C2E;
}

/* Content Area */
.content-area {
    padding: 32px;
}

.section-title {
    font-size: 32px;
    font-weight: 900;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    margin-top: 48px;
    color: var(--text-primary);
}

/* Song Grid */
.song-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.song-card {
    background-color: var(--bg-medium);
    border-radius: 8px;
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.song-card:hover {
    background-color: var(--bg-light);
    transform: translateY(-4px);
}

.song-cover {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 4px;
    margin-bottom: 16px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-green), #000);
}

.song-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.song-artist {
    font-size: 14px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.play-button {
    position: absolute;
    right: 16px;
    bottom: 100px;
    width: 48px;
    height: 48px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(8px);
    transition: var(--transition);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    cursor: pointer;
    z-index: 10;
    pointer-events: auto;
}

.song-card:hover .play-button {
    opacity: 1;
    transform: translateY(0);
}

.play-button:hover {
    background-color: var(--dark-green);
    transform: scale(1.06);
}

.play-button:active {
    transform: scale(0.95);
}

/* Music Player */
.music-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--player-height);
    background-color: var(--bg-medium);
    border-top: 1px solid #000;
    display: flex;
    align-items: center;
    padding: 0 16px;
    z-index: 100;
}

.player-left {
    flex: 0.3;
    display: flex;
    align-items: center;
    gap: 16px;
}

.now-playing-cover {
    width: 56px;
    height: 56px;
    border-radius: 4px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-green), #000);
}

.now-playing-info {
    flex: 1;
}

.now-playing-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.now-playing-artist {
    font-size: 12px;
    color: var(--text-secondary);
}

.player-center {
    flex: 0.4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.control-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.control-btn.play-pause {
    width: 40px;
    height: 40px;
    background-color: var(--text-primary);
    color: #000;
    border-radius: 50%;
}

.control-btn.play-pause:hover {
    transform: scale(1.06);
}

.progress-bar-container {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
}

.time-display {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 40px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background-color: var(--text-dim);
    border-radius: 2px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background-color: var(--primary-green);
    border-radius: 2px;
    transition: width 0.1s linear;
    position: relative;
}

.progress-bar:hover .progress-bar-fill {
    background-color: var(--dark-green);
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    background-color: var(--text-primary);
    border-radius: 50%;
    opacity: 0;
}

.progress-bar:hover .progress-bar-fill::after {
    opacity: 1;
}

.player-right {
    flex: 0.3;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #000 0%, #1a1a1a 100%);
    padding: 24px;
}

.auth-box {
    background-color: var(--bg-dark);
    border-radius: 8px;
    padding: 48px;
    max-width: 450px;
    width: 100%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.auth-logo {
    text-align: center;
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 48px;
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-light);
    border: 1px solid transparent;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-green);
    background-color: var(--bg-medium);
}

.form-select {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-light);
    border: 1px solid transparent;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
}

.alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 24px;
    font-size: 14px;
}

.alert-error {
    background-color: rgba(226, 33, 52, 0.1);
    border: 1px solid #E22134;
    color: #FF6B7A;
}

.alert-success {
    background-color: rgba(29, 185, 84, 0.1);
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
}

.auth-footer {
    text-align: center;
    margin-top: 32px;
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-footer a {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    color: var(--dark-green);
    text-decoration: underline;
}

/* Tables */
.data-table {
    width: 100%;
    background-color: var(--bg-medium);
    border-radius: 8px;
    overflow: hidden;
}

.data-table table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background-color: var(--bg-light);
    padding: 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.data-table td {
    padding: 16px;
    border-top: 1px solid var(--bg-light);
    color: var(--text-primary);
}

.data-table tr:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.stat-card {
    background: linear-gradient(135deg, var(--bg-medium), var(--bg-light));
    border-radius: 8px;
    padding: 24px;
    border: 1px solid rgba(29, 185, 84, 0.1);
}

.stat-value {
    font-size: 36px;
    font-weight: 900;
    color: var(--primary-green);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Upload Form */
.upload-form {
    background-color: var(--bg-medium);
    border-radius: 8px;
    padding: 32px;
    max-width: 600px;
}

.file-input-wrapper {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
}

.file-input-wrapper input[type=file] {
    position: absolute;
    left: -9999px;
}

.file-input-label {
    display: block;
    padding: 48px;
    background-color: var(--bg-light);
    border: 2px dashed var(--text-dim);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.file-input-label:hover {
    border-color: var(--primary-green);
    background-color: var(--bg-dark);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 80px;
        padding: 24px 8px;
    }

    .nav-link span {
        display: none;
    }

    .logo {
        font-size: 0;
    }

    .song-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 16px;
    }

    .music-player {
        flex-direction: column;
        height: auto;
        padding: 16px;
    }

    .player-left,
    .player-center,
    .player-right {
        flex: 1;
        width: 100%;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--bg-light);
    border-top: 3px solid var(--primary-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 48px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility Classes */
.text-green {
    color: var(--primary-green);
}

.text-muted {
    color: var(--text-secondary);
}

.mt-4 {
    margin-top: 24px;
}

.mb-4 {
    margin-bottom: 24px;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.gap-2 {
    gap: 16px;
}

/* Smooth scrollbar */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--text-dim);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}