/**
 * Distrobridge - Callertune Management System
 * Main Stylesheet - Mobile First, Production Ready
 */

/* ===== CSS Variables ===== */
:root {
    /* Colors - Primary */
    --primary: #6366f1;
    --primary-hover: #5558e3;
    --primary-light: #e0e1ff;

    /* Colors - Secondary */
    --secondary: #1e293b;
    --secondary-hover: #334155;

    /* Colors - Accent */
    --accent: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Colors - Neutrals */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition: 200ms ease;
    --transition-slow: 300ms ease;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-loading: 400;
}

/* Admin Theme Override */
body.admin-theme {
    --primary: #6366f1;
}

/* ===== Reset & Base ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input,
textarea,
select {
    font-family: inherit;
    font-size: inherit;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-loading);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-modal);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    max-width: 400px;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

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

.toast.success {
    border-left: 4px solid var(--success);
}

.toast.error {
    border-left: 4px solid var(--danger);
}

.toast.warning {
    border-left: 4px solid var(--warning);
}

.toast.info {
    border-left: 4px solid var(--info);
}

/* ===== Alerts ===== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.alert i {
    font-size: 1.25rem;
    flex-shrink: 0;
    margin-top: 0.125rem;
}

.alert ul {
    margin: var(--spacing-sm) 0 0 var(--spacing-lg);
    list-style: disc;
}

.alert.success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert.warning {
    background: #fffbeb;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert.info {
    background: #eff6ff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition);
    white-space: nowrap;
}

.btn i {
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

.btn-success:hover {
    background: #059669;
}

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

.btn-warning:hover {
    background: #d97706;
}

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-info:hover {
    background: #2563eb;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
}

.btn-block {
    width: 100%;
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    transition: background var(--transition);
}

.icon-btn:hover {
    background: var(--bg-tertiary);
}

.icon-btn i {
    font-size: 1.25rem;
}

.text-btn {
    color: var(--primary);
    font-size: 0.875rem;
}

.text-btn:hover {
    text-decoration: underline;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-muted);
    font-size: 1rem;
}

.input-wrapper input,
.input-wrapper textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.input-wrapper input:focus,
.input-wrapper textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.input-wrapper input:disabled {
    background: var(--bg-tertiary);
    cursor: not-allowed;
}

.input-wrapper textarea {
    padding: var(--spacing-md);
    min-height: 100px;
    resize: vertical;
}

.input-wrapper .toggle-password {
    position: absolute;
    right: var(--spacing-sm);
    padding: var(--spacing-xs);
    color: var(--text-muted);
    transition: color var(--transition);
}

.input-wrapper .toggle-password:hover {
    color: var(--text-secondary);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="date"],
textarea,
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

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

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: 0.875rem;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.checkbox-label input:checked+.checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-label input:checked+.checkmark::after {
    content: '✓';
    color: white;
    font-size: 0.75rem;
    font-weight: bold;
}

.password-requirements {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.password-requirements .req {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.password-requirements .req::before {
    content: '○';
    font-size: 0.625rem;
}

.password-requirements .req.met {
    color: var(--success);
}

.password-requirements .req.met::before {
    content: '●';
}

/* ===== Cards ===== */
.card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

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

.card-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
}

.card-header h2 i {
    color: var(--primary);
}

.card-body {
    padding: var(--spacing-lg);
}

.view-all {
    font-size: 0.875rem;
    color: var(--primary);
}

.view-all:hover {
    text-decoration: underline;
}

/* ===== Auth Pages ===== */
.auth-layout {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.auth-page {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.auth-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
}

.auth-card-sm {
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.auth-logo i {
    font-size: 2rem;
    color: white;
}

.auth-header h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.auth-header p {
    color: var(--text-secondary);
}

.auth-footer-link {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.auth-footer {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--primary);
}

.auth-features {
    display: none;
    flex: 1;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--secondary) 0%, #3b4a6b 100%);
    color: white;
    margin-left: calc(var(--spacing-xl) * -1);
    border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
    align-self: stretch;
}

.auth-features h2 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.auth-features>p {
    opacity: 0.8;
    margin-bottom: var(--spacing-xl);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--accent);
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.feature-item p {
    font-size: 0.875rem;
    opacity: 0.8;
}

@media (min-width: 1024px) {
    .auth-page {
        flex-direction: row;
        align-items: center;
    }

    .auth-card {
        margin: 0;
    }

    .auth-features {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}

/* ===== Mobile Navigation ===== */
.mobile-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom));
    z-index: var(--z-sticky);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: color var(--transition);
}

.nav-item i {
    font-size: 1.25rem;
}

.nav-item.active {
    color: var(--primary);
}

.nav-item:hover {
    color: var(--primary);
}

@media (min-width: 768px) {
    .mobile-nav {
        display: none;
    }
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    background: var(--secondary);
    color: white;
    display: flex;
    flex-direction: column;
    z-index: var(--z-sticky);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.logo i {
    font-size: 1.5rem;
    color: var(--primary);
}

.sidebar-close {
    display: block;
    color: white;
    font-size: 1.25rem;
    padding: var(--spacing-sm);
}

.sidebar-content {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition);
}

.nav-link i {
    font-size: 1.25rem;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-link.active {
    background: var(--primary);
    color: white;
}

.nav-link .badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--spacing-md) 0;
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.impersonation-banner {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--warning);
    color: #000;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.impersonation-banner button {
    margin-left: auto;
    background: #000;
    color: white;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    display: block;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    display: block;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
}

.logout-btn {
    color: rgba(255, 255, 255, 0.6);
    padding: var(--spacing-sm);
    transition: color var(--transition);
}

.logout-btn:hover {
    color: var(--danger);
}

@media (min-width: 768px) {
    .sidebar {
        transform: translateX(0);
    }

    .sidebar-close {
        display: none;
    }

    .mobile-overlay {
        display: none;
    }
}

/* ===== Main Content ===== */
.main-content {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.page-content {
    flex: 1;
    padding: var(--spacing-lg);
    padding-bottom: 80px;
}

@media (min-width: 768px) {
    .page-content {
        margin-left: 280px;
        padding-bottom: var(--spacing-xl);
    }
}

/* ===== Top Bar ===== */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: calc(var(--z-sticky) - 1);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.menu-toggle {
    display: block;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.25rem;
}

@media (min-width: 768px) {
    .menu-toggle {
        display: none;
    }
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

.breadcrumb i {
    font-size: 0.75rem;
}

.topbar-center {
    flex: 1;
    max-width: 400px;
}

.search-container {
    position: relative;
}

.search-container>i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-container input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--bg-tertiary);
    transition: all var(--transition);
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.notification-dropdown,
.user-dropdown {
    position: absolute;
    top: 100%;
    right: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 320px;
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
}

.notification-dropdown.active,
.user-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 0.625rem;
    padding: 2px 6px;
    border-radius: var(--radius-full);
}

.dropdown-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.dropdown-header h4 {
    font-size: 0.875rem;
}

.notification-list {
    max-height: 320px;
    overflow-y: auto;
}

.notification-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition);
}

.notification-item:hover {
    background: var(--bg-tertiary);
}

.notification-item.unread {
    background: var(--primary-light);
}

.notification-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

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

.notification-content p {
    font-size: 0.875rem;
    line-height: 1.4;
}

.notification-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.user-dropdown {
    min-width: 200px;
    right: 0;
}

.user-dropdown a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    transition: all var(--transition);
}

.user-dropdown a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-sm) 0;
}

.logout-link {
    color: var(--danger) !important;
}

.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-sticky) - 2);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

@media (min-width: 768px) {
    .topbar {
        margin-left: 280px;
    }
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.page-header .header-content h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.page-header .header-content p {
    color: var(--text-secondary);
}

.page-header .header-actions {
    display: flex;
    gap: var(--spacing-md);
}

.header-stats {
    display: flex;
    gap: var(--spacing-md);
}

.stat-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
}

.stat-badge.warning {
    background: #fef3c7;
    color: #92400e;
}

@media (min-width: 768px) {
    .page-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

/* ===== Dashboard ===== */
.dashboard .welcome-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-xl);
    color: white;
    margin-bottom: var(--spacing-xl);
}

.welcome-content h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.welcome-content p {
    opacity: 0.9;
}

.welcome-section .btn {
    background: white;
    color: var(--primary);
    align-self: flex-start;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.total {
    background: #dbeafe;
    color: #2563eb;
}

.stat-icon.pending {
    background: #fef3c7;
    color: #d97706;
}

.stat-icon.approved {
    background: #dcfce7;
    color: #16a34a;
}

.stat-icon.rejected {
    background: #fee2e2;
    color: #dc2626;
}

.stat-icon.users {
    background: #e0e7ff;
    color: #4f46e5;
}

.stat-icon.tunes {
    background: #fce7f3;
    color: #db2777;
}

.stat-icon.tickets {
    background: #fef9c3;
    color: #ca8a04;
}

.stat-content {
    flex: 1;
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat-link {
    font-size: 0.875rem;
    color: var(--primary);
    white-space: nowrap;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.content-grid {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .content-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== Tunes Grid ===== */
.tunes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 640px) {
    .tunes-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .tunes-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.tune-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition);
}

.tune-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tune-card-artwork {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg-tertiary);
    overflow: hidden;
}

.tune-card-artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.artwork-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
}

.artwork-placeholder i {
    font-size: 3rem;
    color: var(--text-muted);
}

.artwork-placeholder.large i {
    font-size: 4rem;
}

.tune-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
}

.tune-card:hover .tune-card-overlay {
    opacity: 1;
}

.play-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: white;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: transform var(--transition);
}

.play-btn:hover {
    transform: scale(1.1);
}

.status-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.status-processing {
    background: #dbeafe;
    color: #1e40af;
}

.status-approved {
    background: #dcfce7;
    color: #166534;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-rejected {
    background: #fee2e2;
    color: #991b1b;
}

.status-active {
    background: #dcfce7;
    color: #166534;
}

.status-inactive {
    background: #fee2e2;
    color: #991b1b;
}

.tune-card-content {
    padding: var(--spacing-md);
}

.tune-card-content h3 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tune-artist {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.tune-album {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.tune-uploader {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: var(--spacing-sm);
}

.tune-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.tune-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.rejection-reason {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: #fef2f2;
    border-radius: var(--radius);
    font-size: 0.75rem;
    color: #991b1b;
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.tune-card-actions {
    display: flex;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

/* ===== Tunes List ===== */
.tune-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tune-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.tune-item:hover {
    background: var(--bg-tertiary);
}

.tune-item .tune-artwork {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
}

.tune-item .tune-artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.tune-item .tune-info {
    flex: 1;
    min-width: 0;
}

.tune-item .tune-info h4 {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tune-item .tune-info p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.tune-item .tune-status {
    flex-shrink: 0;
}

/* ===== Filters Bar ===== */
.filters-bar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.filter-tabs {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    padding-bottom: var(--spacing-xs);
}

.filter-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: all var(--transition);
}

.filter-tab:hover {
    background: var(--bg-tertiary);
}

.filter-tab.active {
    background: var(--primary);
    color: white;
}

.filter-tab .count {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: rgba(0, 0, 0, 0.1);
}

.filter-tab.active .count {
    background: rgba(255, 255, 255, 0.2);
}

.filter-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.search-form {
    flex: 1;
    min-width: 200px;
}

.search-input {
    position: relative;
}

.search-input i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md) var(--spacing-sm) 2.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-tertiary);
}

.search-input input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-secondary);
}

.sort-select {
    padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    font-size: 0.875rem;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.empty-state p {
    margin-bottom: var(--spacing-md);
}

.empty-state-large {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.empty-state-large .empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state-large .empty-icon i {
    font-size: 2rem;
    color: var(--text-muted);
    margin: 0;
}

.empty-state-large h3 {
    margin-bottom: var(--spacing-sm);
}

.empty-state-large p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.empty-state-sm {
    text-align: center;
    padding: var(--spacing-md);
    color: var(--text-muted);
}

.empty-state-sm i {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

/* ===== Upload Page ===== */
.upload-page {
    max-width: 800px;
    margin: 0 auto;
}

.upload-form {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.form-sections {
    padding: var(--spacing-xl);
}

.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.form-section h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.form-section h2 i {
    color: var(--primary);
}

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    transition: all var(--transition);
    background: var(--bg-tertiary);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-icon i {
    font-size: 2rem;
    color: var(--primary);
}

.upload-text {
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.upload-or {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.upload-hint {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: var(--spacing-sm);
}

.file-preview,
.cover-preview {
    position: relative;
}

.file-preview {
    background: var(--bg-secondary);
    border-radius: var(--radius);
    padding: var(--spacing-md);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.file-info>i {
    font-size: 1.5rem;
    color: var(--primary);
}

.file-details {
    flex: 1;
}

.file-name {
    display: block;
    font-weight: 500;
}

.file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.remove-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--danger);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition);
}

.remove-btn:hover {
    opacity: 0.8;
}

.cover-preview {
    max-width: 300px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
}

.cover-preview img {
    width: 100%;
    display: block;
}

.cover-preview .remove-btn {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
}

.cover-dimensions {
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

@media (max-width: 640px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.submit-section {
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
}

.submit-info {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.submit-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* ===== Table ===== */
.table-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.data-table th,
.data-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-tertiary);
}

.data-table tbody tr:hover {
    background: var(--bg-tertiary);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.user-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-details {
    min-width: 0;
}

.user-details .user-name {
    display: block;
    font-weight: 500;
}

.user-details .user-id {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.contact-cell {
    min-width: 0;
}

.user-email {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tune-count {
    font-weight: 500;
}

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

.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

@media (max-width: 768px) {
    .table-container {
        overflow-x: auto;
    }

    .data-table {
        min-width: 600px;
    }
}

/* ===== Quick Actions ===== */
.quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.action-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.action-item:hover {
    background: var(--bg-tertiary);
}

.action-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.action-icon.upload {
    background: #dbeafe;
    color: #2563eb;
}

.action-icon.tunes {
    background: #fce7f3;
    color: #db2777;
}

.action-icon.profile {
    background: #e0e7ff;
    color: #4f46e5;
}

.action-icon.support {
    background: #dcfce7;
    color: #16a34a;
}

.action-text {
    flex: 1;
}

.action-text h4 {
    font-size: 0.875rem;
    font-weight: 500;
}

.action-text p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.action-item>i {
    color: var(--text-muted);
}

/* ===== Profile Page ===== */
.profile-grid {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .profile-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .profile-avatar-card {
        grid-column: span 2;
    }
}

.profile-avatar-card .card-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.avatar-display {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
}

.avatar-placeholder span {
    font-size: 3rem;
}

.avatar-display img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-form {
    width: 100%;
    max-width: 300px;
}

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

.activity-stat {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.activity-stat .stat-value {
    display: block;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

/* ===== Support Page ===== */
.support-grid {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .support-grid {
        grid-template-columns: 2fr 1fr;
    }
}

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

.help-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.help-link:hover {
    background: var(--bg-tertiary);
}

.help-link i {
    font-size: 1.25rem;
    color: var(--primary);
}

.help-link h4 {
    font-size: 0.875rem;
    font-weight: 500;
}

.help-link p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.contact-item {
    display: flex;
    gap: var(--spacing-md);
}

.contact-item i {
    font-size: 1.25rem;
    color: var(--primary);
}

.contact-item h4 {
    font-size: 0.875rem;
    font-weight: 500;
}

.contact-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.ticket-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.ticket-item:hover {
    background: var(--bg-tertiary);
}

.ticket-info h4 {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2px;
}

.ticket-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.ticket-status {
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.ticket-status.open {
    background: #dbeafe;
    color: #2563eb;
}

.ticket-status.closed {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

/* ===== Pending Grid ===== */
.pending-grid {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .pending-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.pending-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.pending-artwork {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg-tertiary);
}

.pending-artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pending-artwork .play-btn {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
}

.pending-content {
    padding: var(--spacing-lg);
}

.pending-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.pending-header h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.upload-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.pending-info {
    margin-bottom: var(--spacing-md);
}

.info-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 70px;
}

.info-value {
    font-size: 0.875rem;
}

.pending-description {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.pending-description .info-label {
    margin-bottom: var(--spacing-xs);
}

.pending-description p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.pending-actions {
    margin-top: var(--spacing-md);
}

/* ===== Review Page ===== */
.review-layout {
    display: grid;
    gap: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .review-layout {
        grid-template-columns: 1fr 1fr;
    }
}

.preview-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.preview-artwork {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg-tertiary);
}

.preview-artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-artwork .artwork-placeholder {
    position: absolute;
    inset: 0;
}

.preview-play-btn {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: white;
    color: var(--primary);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition);
}

.preview-play-btn:hover {
    transform: scale(1.1);
}

.preview-info {
    padding: var(--spacing-lg);
    text-align: center;
}

.preview-info h2 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.preview-artist {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.preview-album {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

.preview-meta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.meta-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
}

.file-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.file-actions .btn {
    flex: 1;
}

.review-details .card {
    margin-bottom: var(--spacing-lg);
}

.detail-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.detail-item {
    display: flex;
    gap: var(--spacing-md);
}

.detail-item.full {
    flex-direction: column;
}

.detail-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    min-width: 100px;
}

.detail-value {
    font-size: 0.875rem;
}

.detail-value a {
    color: var(--primary);
}

.review-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.review-actions .btn {
    flex: 1;
}

.return-option {
    text-align: center;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

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

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-close {
    padding: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 1.25rem;
    transition: color var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

.confirmation-modal .modal-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.confirmation-modal h3 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.confirmation-modal p {
    text-align: center;
    color: var(--text-secondary);
}

.reject-warning {
    background: #fef2f2;
    color: #991b1b;
    padding: var(--spacing-md);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-lg);
}

.quick-reasons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.quick-reason {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    font-size: 0.75rem;
    transition: all var(--transition);
}

.quick-reason:hover {
    background: var(--primary-light);
    color: var(--primary);
}

/* ===== Audio Player Modal ===== */
.audio-player-modal {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--secondary);
    color: white;
    z-index: var(--z-modal);
    transform: translateY(100%);
    transition: transform var(--transition-slow);
}

.audio-player-modal.active {
    transform: translateY(0);
}

.audio-player-content {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.player-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    color: white;
    font-size: 1.25rem;
}

.player-artwork {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.player-artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.player-info {
    text-align: center;
}

.player-info h3 {
    font-size: 1.25rem;
    margin-bottom: 4px;
}

.player-info p {
    color: rgba(255, 255, 255, 0.7);
}

.player-controls {
    width: 100%;
}

.progress-container {
    margin-bottom: var(--spacing-md);
}

.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    cursor: pointer;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.1s linear;
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-xs);
}

.control-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
}

.control-btn {
    color: white;
    font-size: 1.5rem;
    padding: var(--spacing-sm);
    transition: transform var(--transition);
}

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

.play-btn {
    width: 56px;
    height: 56px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.play-btn:hover {
    background: var(--primary-hover);
}

/* ===== App Footer ===== */
.app-footer {
    display: none;
    padding: var(--spacing-lg);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.app-footer .footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

@media (min-width: 768px) {
    .app-footer {
        display: block;
        margin-left: 280px;
    }
}

.app-footer p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: var(--primary);
}

/* ===== Notification List ===== */
.notification-list .empty-state {
    padding: var(--spacing-xl);
}

/* ===== Quick Links ===== */
.quick-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.quick-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    transition: background var(--transition);
}

.quick-link:hover {
    background: var(--bg-tertiary);
}

.quick-link i {
    font-size: 1.25rem;
    color: var(--primary);
}

.quick-link h4 {
    font-size: 0.875rem;
    font-weight: 500;
}

.quick-link p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Stats Breakdown ===== */
.stats-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.stat-row .stat-label {
    font-size: 0.875rem;
    min-width: 120px;
}

.stat-bar-container {
    flex: 1;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.stat-bar {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
}

.stat-bar.approved {
    background: var(--success);
}

.stat-bar.rejected {
    background: var(--danger);
}

.stat-bar.pending {
    background: var(--warning);
}

/* ===== Submission List ===== */
.submission-list {
    display: flex;
    flex-direction: column;
}

.submission-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.submission-item:last-child {
    border-bottom: none;
}

.submission-info {
    flex: 1;
    min-width: 0;
}

.submission-info h4 {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.submission-info p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.submission-user {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.submission-status {
    flex-shrink: 0;
}

.submission-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Review List ===== */
.review-list {
    display: flex;
    flex-direction: column;
}

.review-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.review-item:last-child {
    border-bottom: none;
}

.review-artwork {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
}

.review-artwork img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.review-info {
    flex: 1;
    min-width: 0;
}

.review-info h4 {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.review-info p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.review-user {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.review-actions {
    flex-shrink: 0;
}

/* ===== User List ===== */
.user-list {
    display: flex;
    flex-direction: column;
}

.user-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.user-item:last-child {
    border-bottom: none;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-item .user-info {
    flex: 1;
    min-width: 0;
}

.user-item .user-info h4 {
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-item .user-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.user-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ===== Admin Grid ===== */
.admin-grid .tune-card {
    grid-template-columns: repeat(2, 1fr);
}

/* ===== Empty State Large ===== */
.empty-state-large {
    grid-column: 1 / -1;
}