/* Combined Output CSS for Music Site */

/* CSS Custom Properties for Theme Variables */
:root { 
    /* 暗色主题变量 */ 
    --bg-primary-dark: #0b0f19; 
    --bg-secondary-dark: rgba(17, 24, 39, 0.8); 
    --bg-glass-dark: rgba(31, 41, 55, 0.6); 
    --text-primary-dark: #e5e7eb; 
    --text-secondary-dark: #9ca3af; 
    --text-accent-dark: #a7c7e7; 
    --border-color-dark: rgba(55, 65, 81, 0.5); 
    --glow-color-dark: rgba(173, 216, 230, 0.7); 
    
    /* 亮色主题变量 */ 
    --bg-primary-light: #ffffff; 
    --bg-secondary-light: rgba(249, 250, 251, 0.9); 
    --bg-glass-light: rgba(255, 255, 255, 0.8); 
    --text-primary-light: #1f2937; 
    --text-secondary-light: #6b7280; 
    --text-accent-light: #2563eb; 
    --border-color-light: rgba(209, 213, 219, 0.8); 
    --glow-color-light: rgba(37, 99, 235, 0.6); 
    
    /* 默认为暗色主题 */ 
    --bg-primary: var(--bg-primary-dark); 
    --bg-secondary: var(--bg-secondary-dark); 
    --bg-glass: var(--bg-glass-dark); 
    --text-primary: var(--text-primary-dark); 
    --text-secondary: var(--text-secondary-dark); 
    --text-accent: var(--text-accent-dark); 
    --border-color: var(--border-color-dark); 
    --glow-color: var(--glow-color-dark); 
} 

/* 亮色主题覆盖 */ 
.light-theme { 
    --bg-primary: var(--bg-primary-light); 
    --bg-secondary: var(--bg-secondary-light); 
    --bg-glass: var(--bg-glass-light); 
    --text-primary: var(--text-primary-light); 
    --text-secondary: var(--text-secondary-light); 
    --text-accent: var(--text-accent-light); 
    --border-color: var(--border-color-light); 
    --glow-color: var(--glow-color-light); 
} 

/* 基础样式 */ 
body { 
    background-color: var(--bg-primary); 
    color: var(--text-primary); 
    font-family: 'Inter', sans-serif; 
    transition: background-color 0.3s ease, color 0.3s ease; 
} 

.glass-effect { 
    background-color: var(--bg-glass); 
    backdrop-filter: blur(12px); 
    border: 1px solid var(--border-color); 
    border-radius: 0.75rem; 
} 

.text-gradient { 
    background-image: linear-gradient(to right, var(--text-accent), var(--glow-color)); 
    -webkit-background-clip: text; 
    background-clip: text; 
    color: transparent; 
} 

/* 头部样式 */ 
#main-header { 
    position: sticky; 
    top: 0; 
    z-index: 50; 
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease; 
} 

#main-header.scrolled { 
    background-color: var(--bg-glass); 
    backdrop-filter: blur(16px); 
    border-bottom: 1px solid var(--border-color); 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
} 

#main-header:not(.scrolled) { 
    background-color: transparent; 
    border-bottom: 1px solid transparent; 
} 

#notification-dropdown { 
    display: none; 
    transform: translateY(-10px); 
    opacity: 0; 
    transition: all 0.3s ease; 
} 

#notification-dropdown.show { 
    display: block; 
    transform: translateY(0); 
    opacity: 1; 
} 

/* 通知项样式美化 */ 
.notification-item { 
    transition: background-color 0.2s ease; 
} 

.notification-item:hover { 
    background-color: rgba(55, 65, 81, 0.3); 
} 

.notification-item.unread { 
    position: relative; 
    background-color: rgba(59, 130, 246, 0.1); 
} 

.notification-item.unread::before { 
    content: ''; 
    position: absolute; 
    left: 0; 
    top: 0; 
    bottom: 0; 
    width: 3px; 
    background: linear-gradient(to bottom, #3b82f6, #1d4ed8); 
    border-radius: 0 2px 2px 0; 
} 

/* 主题切换按钮样式 */ 
#theme-toggle { 
    transition: all 0.3s ease; 
} 

#theme-toggle:hover { 
    transform: scale(1.1); 
} 

/* Fallback 布局，避免无 Tailwind 时错位 */ 
#main-header .header-actions { 
    display: flex; 
    align-items: center; 
    gap: 8px; 
} 

#main-header .header-actions a, 
#main-header .header-actions button { 
    padding: 10px; 
    border-radius: 9999px; 
} 

#main-header .header-actions a i, 
#main-header .header-actions button i { 
    font-size: 1.125rem; 
    line-height: 1; 
} 

#main-header .site-title { 
    font-weight: 700; 
    font-size: 1.5rem; 
    text-decoration: none; 
} 

@media (min-width: 768px) { 
    #main-header .site-title { 
        font-size: 1.875rem; 
    } 
}

/* Music Player Styles - Optimized for screen adaptation */
.music-player {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem;
    margin: 0.75rem 0;
    max-width: 100%;
    box-sizing: border-box;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.player-controls button {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    padding: 0.375rem;
    cursor: pointer;
    transition: color 0.3s ease;
    min-width: 2rem;
    min-height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.player-controls button:hover {
    color: var(--text-accent);
}

.progress-bar {
    width: 100%;
    height: 3px;
    background: var(--border-color);
    border-radius: 2px;
    margin: 0.75rem 0;
    cursor: pointer;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(to right, var(--text-accent), var(--glow-color));
    border-radius: 2px;
    transition: width 0.1s ease;
}

/* Playlist Styles - Compact and responsive */
.playlist {
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    padding: 0.75rem;
    margin: 0.75rem 0;
}

.playlist-item {
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.875rem;
}

.playlist-item:hover {
    background-color: var(--bg-glass);
}

.playlist-item.active {
    background-color: var(--bg-glass);
    border: 1px solid var(--text-accent);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

/* Form Styles */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--text-accent);
    box-shadow: 0 0 0 3px rgba(var(--text-accent), 0.1);
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    border: none;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--text-accent), var(--glow-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(var(--text-accent), 0.3);
}

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

.btn-secondary:hover {
    background: var(--bg-glass);
}

/* Responsive Design - Enhanced for mobile */
@media (max-width: 768px) {
    .music-player {
        padding: 0.75rem;
        margin: 0.5rem 0;
    }
    
    .player-controls {
        gap: 0.5rem;
    }
    
    .player-controls button {
        font-size: 1.125rem;
        min-width: 1.75rem;
        min-height: 1.75rem;
    }
    
    .playlist {
        padding: 0.5rem;
    }
    
    .playlist-item {
        padding: 0.5rem;
        font-size: 0.8125rem;
    }
    
    .modal-content {
        margin: 0.75rem;
        padding: 1rem;
    }
}

/* Container constraints for better layout */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 768px) {
    .main-container {
        padding: 0 1.5rem;
    }
}

/* Animation Keyframes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}