/**
 * Estilos do Painel Administrativo AdultTube
 * Design Moderno e Responsivo
 */

/* ===========================
   Reset e Configurações Base
   =========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores Principais */
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --primary-light: #7c94f5;
    
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Cores de Fundo */
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    /* Cores de Texto */
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6);
    
    /* Transições */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Bordas */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

/* ===========================
   Header
   =========================== */
.admin-header {
    background: var(--bg-secondary);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--bg-tertiary);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

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

.main-nav {
    display: flex;
    gap: 1rem;
    flex: 1;
    justify-content: center;
}

.nav-link {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all var(--transition-fast);
    font-weight: 500;
}

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

.nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.user-info i {
    font-size: 1.5rem;
}

.btn-logout {
    padding: 0.75rem;
    border-radius: var(--radius-md);
    background: var(--error-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.btn-logout:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

/* ===========================
   Container
   =========================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* ===========================
   Page Header
   =========================== */
.dashboard-header,
.page-header {
    margin-bottom: 2rem;
}

.dashboard-header h1,
.page-header h1 {
    font-size: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.dashboard-header p,
.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ===========================
   Stats Grid
   =========================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.stat-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.stat-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===========================
   Quick Actions
   =========================== */
.quick-actions {
    margin-bottom: 3rem;
}

.quick-actions h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.action-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    text-align: center;
}

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

.action-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.action-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.action-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.action-primary:hover { border-color: var(--primary-color); }
.action-info:hover { border-color: var(--info-color); }
.action-warning:hover { border-color: var(--warning-color); }
.action-secondary:hover { border-color: var(--secondary-color); }

/* ===========================
   System Info
   =========================== */
.system-info {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.system-info h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.info-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.info-value {
    color: var(--text-primary);
    font-weight: 600;
    text-align: right;
}

.status-ok {
    color: var(--success-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===========================
   Login Page
   =========================== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 2rem;
}

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

.login-header {
    text-align: center;
    padding: 3rem 2rem 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.login-header i {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.login-header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.login-form {
    padding: 2rem;
}

.login-footer {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===========================
   Forms
   =========================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-secondary);
}

.form-help {
    display: block;
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* ===========================
   Buttons
   =========================== */
.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: inherit;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-secondary);
}

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

/* ===========================
   Alerts
   =========================== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert i {
    font-size: 1.5rem;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: #6ee7b7;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning-color);
    color: #fcd34d;
}

/* ===========================
   Upload Form
   =========================== */
.upload-form-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.form-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--bg-tertiary);
}

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

.form-section h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    color: var(--primary-light);
}

/* ===========================
   Dropzone
   =========================== */
.dropzone {
    border: 3px dashed var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: 3rem;
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
}

.dropzone:hover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.dropzone.dragover {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.02);
}

.dropzone-content i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.dropzone-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.dropzone-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.file-info i {
    font-size: 2.5rem;
    color: var(--primary-color);
}

.file-details {
    flex: 1;
    text-align: left;
}

.file-details strong {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.file-details span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.btn-remove {
    padding: 0.5rem;
    background: var(--error-color);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* ===========================
   Tags Selector
   =========================== */
.tags-selector {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.tags-search {
    position: relative;
    margin-bottom: 1rem;
}

.tags-search input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
}

.tags-search i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.tags-list {
    max-height: 300px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.75rem;
    padding: 1rem 0;
}

.tag-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tag-checkbox:hover {
    background: var(--bg-primary);
}

.tag-checkbox input[type="checkbox"] {
    width: auto;
}

.tag-checkbox input:checked + span {
    color: var(--primary-light);
    font-weight: 600;
}

.selected-tags {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--bg-secondary);
    min-height: 40px;
    color: var(--text-secondary);
}

/* ===========================
   Upload Status
   =========================== */
.upload-status {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    min-width: 350px;
    z-index: 1000;
    border: 2px solid var(--primary-color);
}

.status-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

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

.progress-bar-container {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 30px;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transition: width var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.progress-text {
    font-weight: 600;
    font-size: 0.9rem;
    color: white;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

/* ===========================
   Form Actions
   =========================== */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 2rem;
}

/* ===========================
   Footer
   =========================== */
.admin-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--bg-tertiary);
    margin-top: 4rem;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
}

.footer-container p {
    margin: 0.25rem 0;
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .stats-grid,
    .actions-grid {
        grid-template-columns: 1fr;
    }
    
    .upload-status {
        right: 1rem;
        left: 1rem;
        bottom: 1rem;
        min-width: auto;
    }
}

/* ===========================
   Collection Selector
   =========================== */
.section-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.collection-selector {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.collection-option {
    flex: 1;
}

.collection-option input[type="radio"] {
    display: none;
}

.collection-option label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
}

.collection-option label:hover {
    background: var(--bg-primary);
    transform: translateY(-2px);
}

.collection-option input[type="radio"]:checked + label {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-color: var(--primary-light);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.collection-option label i {
    font-size: 1.2rem;
}

#existingCollectionSelect select,
#newCollectionInput input {
    width: 100%;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--bg-primary);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

#existingCollectionSelect select:focus,
#newCollectionInput input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* ===========================
   Scrollbar
   =========================== */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 5px;
}

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