/* ==========================================
   Levenslied - Admin Interface
   Modern Dark Theme with Glassmorphism
   ========================================== */

/* ==========================================
   0. GOOGLE FONTS IMPORT
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Grenze:wght@400;500;600;700&family=Crimson+Pro:wght@400;500;600;700&display=swap');

/* ==========================================
   1. CSS RESET & BASE
   ========================================== */

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

/* ==========================================
   2. DESIGN TOKENS
   ========================================== */

:root {
    /* ===== LIGHT THEME (Default) ===== */
    --color-bg: #faf9f7;
    --color-bg-gradient: linear-gradient(180deg, #faf9f7 0%, #f5f3f0 50%, #ece8e4 100%);
    --color-surface: #ffffff;
    --color-surface-elevated: #f8f6f4;
    --color-surface-hover: #f0ede9;
    
    /* Accent colors */
    --color-accent: #b8734a;
    --color-accent-light: #d4956a;
    --color-accent-dark: #8f5a38;
    --color-accent-glow: rgba(184, 115, 74, 0.2);
    --gradient-accent: linear-gradient(135deg, #c5856a 0%, #a66b4a 100%);
    
    /* Text colors */
    --color-text: #1a1a1a;
    --color-text-muted: #5c5c5c;
    --color-text-dim: #8a8a8a;
    
    /* Semantic colors */
    --color-success: #16a34a;
    --color-error: #dc2626;
    --color-warning: #d97706;
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-bg-hover: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(0, 0, 0, 0.06);
    --glass-border-hover: rgba(0, 0, 0, 0.12);
    --glass-blur: blur(20px);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
    
    /* Background overlay colors */
    --bg-overlay-1: rgba(184, 115, 74, 0.06);
    --bg-overlay-2: rgba(166, 107, 74, 0.04);
    
    /* Animation */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Typography */
    --font-display: 'Grenze', Georgia, serif;
    --font-body: 'Crimson Pro', Georgia, serif;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    
    /* Theme indicator */
    --theme-icon-sun: 1;
    --theme-icon-moon: 0;
}

/* ===== DARK THEME ===== */
[data-theme="dark"] {
    --color-bg: #0f0f1a;
    --color-bg-gradient: linear-gradient(180deg, #0f0f1a 0%, #16162a 50%, #1a1a2e 100%);
    --color-surface: #1a1a2e;
    --color-surface-elevated: #252540;
    --color-surface-hover: #2a2a4a;
    
    --color-accent: #e8a87c;
    --color-accent-light: #ffd4a3;
    --color-accent-dark: #c5796d;
    --color-accent-glow: rgba(232, 168, 124, 0.3);
    --gradient-accent: linear-gradient(135deg, #e8a87c 0%, #c5796d 100%);
    
    --color-text: #f5f5f7;
    --color-text-muted: #9ca3af;
    --color-text-dim: #6b7280;
    
    --color-success: #6ee7b7;
    --color-error: #f87171;
    --color-warning: #fbbf24;
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    
    --bg-overlay-1: rgba(232, 168, 124, 0.08);
    --bg-overlay-2: rgba(197, 121, 109, 0.05);
    
    --theme-icon-sun: 0;
    --theme-icon-moon: 1;
}

/* System preference: dark mode */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-bg: #0f0f1a;
        --color-bg-gradient: linear-gradient(180deg, #0f0f1a 0%, #16162a 50%, #1a1a2e 100%);
        --color-surface: #1a1a2e;
        --color-surface-elevated: #252540;
        --color-surface-hover: #2a2a4a;
        
        --color-accent: #e8a87c;
        --color-accent-light: #ffd4a3;
        --color-accent-dark: #c5796d;
        --color-accent-glow: rgba(232, 168, 124, 0.3);
        --gradient-accent: linear-gradient(135deg, #e8a87c 0%, #c5796d 100%);
        
        --color-text: #f5f5f7;
        --color-text-muted: #9ca3af;
        --color-text-dim: #6b7280;
        
        --color-success: #6ee7b7;
        --color-error: #f87171;
        --color-warning: #fbbf24;
        
        --glass-bg: rgba(255, 255, 255, 0.03);
        --glass-bg-hover: rgba(255, 255, 255, 0.06);
        --glass-border: rgba(255, 255, 255, 0.08);
        --glass-border-hover: rgba(255, 255, 255, 0.15);
        
        --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
        
        --bg-overlay-1: rgba(232, 168, 124, 0.08);
        --bg-overlay-2: rgba(197, 121, 109, 0.05);
        
        --theme-icon-sun: 0;
        --theme-icon-moon: 1;
    }
}

/* ==========================================
   3. BASE STYLES
   ========================================== */

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    background-image: var(--color-bg-gradient);
    background-attachment: fixed;
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(ellipse at 20% 0%, var(--bg-overlay-1) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 100%, var(--bg-overlay-2) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out-expo);
}

a:hover {
    color: var(--color-accent-light);
}

/* ==========================================
   4. LAYOUT
   ========================================== */

.app-container {
    display: grid;
    grid-template-columns: 260px 1fr 300px;
    height: 100vh;
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.admin-app {
    gap: 0;
}

/* ==========================================
   5. LEFT SIDEBAR
   ========================================== */

.left-sidebar {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.logo {
    padding: var(--space-lg) var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--glass-border);
}

.logo h1 {
    font-size: var(--text-2xl);
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-dot {
    color: var(--color-accent);
}

.logo-subtitle {
    margin-top: var(--space-xs);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-dim);
}

.main-nav {
    padding: var(--space-lg) 0;
    flex: 1;
    overflow-y: auto;
}

.nav-item {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    border-left: 3px solid transparent;
    transition: all var(--duration-normal) var(--ease-out-expo);
    background: none;
    border-top: none;
    border-right: none;
    border-bottom: none;
    cursor: pointer;
    text-align: left;
    font-family: var(--font-body);
}

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

.nav-item.active {
    border-left-color: var(--color-accent);
    color: var(--color-text);
    background: var(--glass-bg-hover);
}

.nav-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: var(--gradient-accent);
    color: var(--color-bg);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-footer {
    padding: var(--space-lg);
    border-top: 1px solid var(--glass-border);
}

.sidebar-tip {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    display: flex;
    gap: var(--space-sm);
    align-items: flex-start;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: var(--space-md);
}

.tip-icon {
    font-weight: 700;
    color: var(--color-accent);
}

.sidebar-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.sidebar-link {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: color var(--duration-fast) var(--ease-out-expo);
}

.sidebar-link:hover {
    color: var(--color-accent);
}

/* ==========================================
   6. MAIN WORKSPACE
   ========================================== */

.admin-main {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    overflow: hidden;
}

.admin-header {
    padding: var(--space-xl) var(--space-2xl) var(--space-lg);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-lg);
    background: var(--glass-bg);
}

.header-title h1 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-xs);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-title p {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.header-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.header-action {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.header-action:hover {
    background: var(--glass-bg-hover);
    border-color: var(--color-accent);
    color: var(--color-text);
    transform: translateY(-2px);
}

.action-icon {
    font-size: var(--text-base);
}

.workspace {
    flex: 1;
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-lg) var(--space-2xl) var(--space-2xl);
    overflow: hidden;
    min-height: 0;
}

/* ==========================================
   7. LIST PANEL
   ========================================== */

.list-panel {
    width: 340px;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.list-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.list-header h2 {
    font-size: var(--text-lg);
    font-family: var(--font-body);
    font-weight: 600;
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--space-sm) var(--space-md);
}

.search-icon {
    font-size: var(--text-lg);
    color: var(--color-text-dim);
}

#searchInput {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--text-sm);
    font-family: var(--font-body);
    color: var(--color-text);
}

#searchInput::placeholder {
    color: var(--color-text-dim);
}

#searchInput:focus {
    outline: none;
}

.liederen-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.lied-item {
    padding: var(--space-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out-expo);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-sm);
}

.lied-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.lied-item-content {
    flex: 1;
    min-width: 0;
}

.lied-item h3 {
    font-size: var(--text-sm);
    font-family: var(--font-body);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lied-meta {
    font-size: var(--text-xs);
    color: var(--color-text-dim);
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.lied-item.active {
    background: var(--gradient-accent);
    border-color: transparent;
    color: var(--color-bg);
}

.lied-item.active .lied-meta {
    color: rgba(15, 15, 26, 0.7);
}

.lied-item-add-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
    background: var(--color-surface);
    color: var(--color-text-muted);
    font-size: var(--text-base);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
    flex-shrink: 0;
}

.lied-item-add-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-bg);
    transform: scale(1.1);
}

/* ==========================================
   8. DETAIL PANEL
   ========================================== */

.detail-panel {
    flex: 1;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    overflow-y: auto;
    min-height: 0;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--color-text-muted);
    gap: var(--space-sm);
}

.empty-icon {
    font-size: 3rem;
    opacity: 0.3;
}

.detail-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.detail-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.back-btn {
    align-self: flex-start;
    display: none;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
    font-family: var(--font-body);
}

.back-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
    background: var(--glass-bg);
}

.detail-title {
    font-size: var(--text-2xl);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.detail-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* ==========================================
   9. CARDS
   ========================================== */

.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    padding: var(--space-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.card-actions {
    display: flex;
    gap: var(--space-sm);
}

.section-title {
    font-size: var(--text-xs);
    font-family: var(--font-body);
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-text-dim);
    text-transform: uppercase;
}

.metadata-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.metadata-item label {
    display: block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-dim);
    margin-bottom: var(--space-xs);
}

.metadata-input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    font-size: var(--text-sm);
    font-family: var(--font-body);
    color: var(--color-text);
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.metadata-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

/* ==========================================
   10. AUDIO PLAYER & RECORDER
   ========================================== */

.audio-player {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border: 1px solid var(--glass-border);
}

.audio-player audio {
    width: 100%;
}

.audio-upload {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    justify-content: space-between;
}

.lyrics-content {
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    padding: var(--space-lg);
    white-space: pre-wrap;
    line-height: 1.8;
    font-size: var(--text-base);
    color: var(--color-text);
    min-height: 200px;
}

.lyrics-editor {
    background: var(--glass-bg) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--color-text) !important;
}

.lyrics-editor:focus {
    border-color: var(--color-accent) !important;
    outline: none !important;
}

/* Audio Tabs */
.audio-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--glass-border);
    padding: 0 var(--space-md);
}

.audio-tab {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: none;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
    border-bottom: 2px solid transparent;
    position: relative;
    bottom: -1px;
}

.audio-tab:hover {
    color: var(--color-text);
    background: var(--glass-bg);
}

.audio-tab.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.audio-tab-content {
    display: none;
    padding: var(--space-md);
}

.audio-tab-content.active {
    display: block;
}

/* Audio Recorder */
.audio-recorder {
    font-family: var(--font-body);
}

.recorder-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    border: 1px solid var(--glass-border);
}

.status-icon {
    font-size: var(--text-lg);
}

.status-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.recorder-status.status-recording {
    background: rgba(232, 168, 124, 0.1);
    border-color: var(--color-accent);
}

.recorder-status.status-recording .status-text {
    color: var(--color-accent);
}

.recorder-status.status-completed {
    background: rgba(110, 231, 183, 0.1);
    border-color: var(--color-success);
}

.recorder-status.status-completed .status-text {
    color: var(--color-success);
}

.recorder-visualizer-container {
    position: relative;
    width: 100%;
    height: 140px;
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.recorder-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.recorder-timer {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-text);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--text-base);
    font-weight: 600;
    font-family: var(--font-body);
}

.recorder-volume-meter {
    position: absolute;
    bottom: var(--space-sm);
    left: var(--space-sm);
    display: flex;
    gap: 3px;
    align-items: flex-end;
    height: 36px;
}

.volume-bar {
    width: 6px;
    background: var(--glass-border);
    border-radius: 2px;
    transition: all 100ms ease;
}

.volume-bar:nth-child(1) { height: 20%; }
.volume-bar:nth-child(2) { height: 40%; }
.volume-bar:nth-child(3) { height: 60%; }
.volume-bar:nth-child(4) { height: 80%; }
.volume-bar:nth-child(5) { height: 100%; }

.volume-bar.active {
    background: var(--color-accent);
    box-shadow: 0 0 6px var(--color-accent-glow);
}

.recorder-controls {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.recorder-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.recorder-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.recorder-btn .btn-icon {
    font-size: var(--text-lg);
}

.recorder-btn.btn-record {
    background: var(--gradient-accent);
    border-color: transparent;
    color: var(--color-bg);
}

.recorder-btn.btn-record:hover {
    box-shadow: var(--shadow-glow);
}

.recorder-btn.btn-stop {
    background: var(--color-error);
    border-color: var(--color-error);
    color: white;
}

.recorder-btn.btn-pause {
    background: var(--color-warning);
    border-color: var(--color-warning);
    color: var(--color-bg);
}

.recorder-btn.btn-resume {
    background: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-bg);
}

.recorder-btn.btn-upload {
    background: var(--gradient-accent);
    border-color: transparent;
    color: var(--color-bg);
}

.recorder-preview {
    padding: var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-top: var(--space-md);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.preview-header h4 {
    margin: 0;
    font-size: var(--text-sm);
    font-family: var(--font-body);
}

.btn-discard {
    background: transparent;
    border: none;
    color: var(--color-error);
    font-size: var(--text-sm);
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.btn-discard:hover {
    background: rgba(248, 113, 113, 0.1);
}

.preview-audio {
    width: 100%;
    margin-bottom: var(--space-sm);
}

.recorder-error {
    padding: var(--space-sm);
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: var(--text-sm);
    margin-top: var(--space-sm);
}

.recorder-error-message {
    padding: var(--space-lg);
    text-align: center;
    color: var(--color-text-muted);
}

/* ==========================================
   11. BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
    font-family: var(--font-body);
}

.btn .icon {
    font-size: var(--text-base);
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--color-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

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

.btn-danger {
    background: var(--color-error);
    color: white;
}

.btn-danger:hover {
    filter: brightness(1.1);
}

.btn-small {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-xs);
}

.btn.full-width {
    width: 100%;
    justify-content: center;
}

/* ==========================================
   12. RIGHT SIDEBAR
   ========================================== */

.admin-sidebar {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-left: 1px solid var(--glass-border);
    padding: var(--space-xl) var(--space-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.info-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.info-text {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    line-height: 1.7;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.quick-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    text-decoration: none;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.quick-action:hover {
    border-color: var(--color-accent);
    color: var(--color-text);
    transform: translateX(4px);
}

.stats-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.stat-value {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-accent);
}

/* ==========================================
   13. MODALS
   ========================================== */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(15, 15, 26, 0.9);
    backdrop-filter: blur(8px);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 100px var(--space-lg) var(--space-2xl);
    z-index: 2000;
    overflow-y: auto;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background: var(--color-surface);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 640px;
    overflow: hidden;
    animation: scaleIn 0.3s var(--ease-out-back);
}

.modal-content.large {
    max-width: 900px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg);
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: var(--text-xl);
    font-family: var(--font-body);
    font-weight: 600;
}

.modal-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.close-btn {
    background: var(--glass-bg);
    border: none;
    font-size: var(--text-xl);
    color: var(--color-text-muted);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-out-expo);
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--glass-bg-hover);
    color: var(--color-text);
}

.playlists-list,
.playlists-select-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.playlist-item,
.playlist-select-item {
    background: var(--glass-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    padding: var(--space-md);
    transition: all var(--duration-fast) var(--ease-out-expo);
    cursor: pointer;
}

.playlist-item:hover,
.playlist-select-item:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.playlist-select-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.playlist-detail-content .lied-item {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
}

.playlist-detail-content .remove-btn {
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    border: none;
    background: var(--color-error);
    color: white;
    font-size: var(--text-xs);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.playlist-detail-content .remove-btn:hover {
    filter: brightness(1.1);
}

/* Form Elements */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.form-group label {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-muted);
}

.form-input {
    padding: var(--space-sm) var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--text-base);
    transition: all var(--duration-fast) var(--ease-out-expo);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

/* ==========================================
   14. SORT CONTROLS
   ========================================== */

.sort-controls {
    padding: var(--space-sm) var(--space-md);
    border-top: 1px solid var(--glass-border);
    background: var(--glass-bg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.sort-controls label {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    white-space: nowrap;
    font-weight: 500;
}

.sort-select {
    flex: 1;
    padding: var(--space-xs) var(--space-sm);
    padding-right: var(--space-lg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: var(--glass-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-expo);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%239ca3af' d='M5 7.5L1 3h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}

.sort-select:hover {
    border-color: var(--color-accent);
    background-color: var(--glass-bg-hover);
}

.sort-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-glow);
}

.sort-select option {
    background: var(--color-surface);
    color: var(--color-text);
}

/* ==========================================
   15. FEEDBACK & LOADING
   ========================================== */

.loading {
    padding: var(--space-lg);
    text-align: center;
    color: var(--color-text-dim);
    font-style: italic;
}

/* ==========================================
   16. SCROLLBARS
   ========================================== */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: var(--radius-full);
}

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

/* ==========================================
   17. ANIMATIONS
   ========================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ==========================================
   18. RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 1400px) {
    .app-container {
        grid-template-columns: 240px 1fr 280px;
    }
    
    .workspace {
        gap: var(--space-md);
        padding: var(--space-lg);
    }
}

@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 240px 1fr;
    }
    
    .admin-sidebar {
        display: none;
    }
}

@media (max-width: 992px) {
    .app-container {
        grid-template-columns: 220px 1fr;
    }
    
    .workspace {
        flex-direction: column;
    }
    
    .list-panel {
        width: 100%;
        min-width: 0;
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    body {
        overflow: auto;
    }
    
    .app-container {
        grid-template-columns: 1fr;
        min-height: 100vh;
    }
    
    .left-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        z-index: 3000;
        transform: translateX(-110%);
        transition: transform 0.3s var(--ease-out-expo);
        box-shadow: var(--shadow-lg);
    }
    
    .left-sidebar.active {
        transform: translateX(0);
    }
    
    .admin-header {
        flex-direction: column;
        padding: var(--space-lg);
    }
    
    .header-actions {
        width: 100%;
    }
    
    .header-action {
        flex: 1;
        justify-content: center;
    }
    
    .workspace {
        padding: var(--space-md);
    }
    
    .list-panel {
        max-height: 50vh;
    }
    
    .detail-panel {
        padding: var(--space-md);
    }
    
    .back-btn {
        display: inline-flex;
    }
    
    .metadata-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 520px) {
    .admin-header {
        padding: var(--space-md);
    }
    
    .workspace {
        padding: var(--space-sm);
    }
    
    .list-header {
        padding: var(--space-md);
    }
    
    .card {
        padding: var(--space-md);
    }
    
    .modal {
        padding: var(--space-md);
        padding-top: var(--space-2xl);
    }
    
    .modal-body {
        padding: var(--space-md);
    }
}

/* ==========================================
   19. THEME TOGGLE
   ========================================== */

.theme-toggle {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-normal) var(--ease-out-expo);
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.theme-toggle:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.theme-toggle .sun-icon {
    color: var(--color-accent);
    opacity: var(--theme-icon-sun);
    transform: scale(var(--theme-icon-sun)) rotate(calc((1 - var(--theme-icon-sun)) * 180deg));
    position: absolute;
}

.theme-toggle .moon-icon {
    color: var(--color-accent);
    opacity: var(--theme-icon-moon);
    transform: scale(var(--theme-icon-moon)) rotate(calc((1 - var(--theme-icon-moon)) * -180deg));
    position: absolute;
}

/* Theme transition for smooth color changes */
body,
body::before,
.left-sidebar,
.main-content,
.glass-card,
.card,
input,
textarea,
select,
.btn {
    transition: 
        background-color var(--duration-normal) ease-in-out,
        border-color var(--duration-normal) ease-in-out,
        color var(--duration-normal) ease-in-out,
        box-shadow var(--duration-normal) ease-in-out;
}