/* ============================================
   DocVault DMS - Professional Design System
   ============================================ */

:root {
    /* Colors */
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --primary-10: rgba(79, 70, 229, 0.1);
    
    --success: #22c55e;
    --success-light: #f0fdf4;
    --warning: #f97316;
    --warning-light: #fff7ed;
    --danger: #ef4444;
    --danger-light: #fef2f2;
    --info: #3b82f6;
    --info-light: #eff6ff;
    
    /* Neutral */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    
    --border: #e2e8f0;
    --border-hover: #cbd5e1;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    
    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 0;
    --topbar-height: 64px;
    
    /* Radius */
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition: all 0.2s ease;
    --transition-slow: all 0.3s ease;
}

/* Dark Mode */
body.dark {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --border: #334155;
    --border-hover: #475569;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --primary-light: rgba(79, 70, 229, 0.2);
    --success-light: rgba(34, 197, 94, 0.1);
    --warning-light: rgba(249, 115, 22, 0.1);
    --danger-light: rgba(239, 68, 68, 0.1);
    --info-light: rgba(59, 130, 246, 0.1);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.3);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.3);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

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

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

hr { border: none; border-top: 1px solid var(--border); margin: 1rem 0; }

/* ============================================
   Layout
   ============================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: var(--transition-slow);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon { font-size: 1.75rem; }

.logo-img { height: 32px; width: auto; }

.logo-text {
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-close {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 0;
}

.nav-section { margin-bottom: 0.5rem; }

.nav-label {
    display: block;
    padding: 0.5rem 1.25rem 0.25rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.25rem;
    margin: 0.125rem 0.5rem;
    border-radius: var(--radius);
    color: var(--text-secondary);
    transition: var(--transition);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
}

.nav-link.active {
    background: var(--primary-10);
    color: var(--primary);
}

.nav-icon { font-size: 1.1rem; width: 24px; text-align: center; }

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border);
}

.storage-info { font-size: 0.8rem; }

.storage-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.storage-bar, .storage-bar-large {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 99px;
    overflow: hidden;
}

.storage-fill, .storage-fill-large {
    height: 100%;
    background: var(--primary);
    border-radius: 99px;
    transition: width 0.5s ease;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Topbar */
.topbar {
    height: var(--topbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: 1rem; flex: 1; }

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-primary);
}

.search-box {
    position: relative;
    max-width: 400px;
    flex: 1;
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

.search-box input {
    width: 100%;
    padding: 0.5rem 0.75rem 0.5rem 2.25rem;
    border: 1px solid var(--border);
    border-radius: 99px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-10);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: none;
    max-height: 300px;
    overflow-y: auto;
    z-index: 200;
    margin-top: 0.25rem;
}

.search-results.active { display: block; }

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.search-result-item:hover { background: var(--bg-tertiary); }
.search-result-item:last-child { border-bottom: none; }

.topbar-right { display: flex; align-items: center; gap: 0.75rem; }

.topbar-btn {
    background: none;
    border: 1px solid var(--border);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

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

.user-menu { position: relative; }

.user-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

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

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
}

.user-name { font-weight: 500; font-size: 0.9rem; color: var(--text-primary); }

.dropdown-arrow { color: var(--text-tertiary); font-size: 0.8rem; }

.dropdown-menu {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    display: none;
    z-index: 200;
}

.dropdown-menu.active { display: block; }

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
    text-decoration: none;
}

.dropdown-item:hover { background: var(--bg-tertiary); color: var(--text-primary); text-decoration: none; }

.dropdown-divider { border-top: 1px solid var(--border); margin: 0.25rem 0; }

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

/* Page Content */
.page-content { padding: 1.5rem; flex: 1; }

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-title { font-size: 1.75rem; font-weight: 800; margin-bottom: 0.25rem; }
.page-subtitle { color: var(--text-secondary); font-size: 0.9rem; }
.page-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    font-family: inherit;
}

.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

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

.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-tertiary); }

.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #dc2626; }

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

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.8rem; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-group { display: flex; gap: 0; }
.btn-group .btn { border-radius: 0; }
.btn-group .btn:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.btn-group .btn:last-child { border-radius: 0 var(--radius) var(--radius) 0; }

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: var(--radius);
    transition: var(--transition);
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover { box-shadow: var(--shadow-md); }

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
}

.card-header h3 { font-size: 1rem; font-weight: 700; }
.card-header h4 { font-size: 0.9rem; font-weight: 600; }

.card-body { padding: 1.25rem; }

/* ============================================
   Stats Grid
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

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

.stat-primary .stat-icon { background: var(--primary-light); color: var(--primary); }
.stat-success .stat-icon { background: var(--success-light); color: var(--success); }
.stat-warning .stat-icon { background: var(--warning-light); color: var(--warning); }
.stat-info .stat-icon { background: var(--info-light); color: var(--info); }

.stat-value { font-size: 1.5rem; font-weight: 800; display: block; }
.stat-label { font-size: 0.8rem; color: var(--text-secondary); }

/* ============================================
   Grid Layout
   ============================================ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }

/* ============================================
   Storage Card
   ============================================ */
.storage-card .storage-bar-large { height: 12px; margin-top: 0.75rem; }
.storage-card { margin-bottom: 1.5rem; }

/* ============================================
   Document List (Dashboard)
   ============================================ */
.doc-list { display: flex; flex-direction: column; }

.doc-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

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

.doc-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.doc-info { flex: 1; min-width: 0; }
.doc-title { font-weight: 600; font-size: 0.9rem; display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.doc-meta { font-size: 0.8rem; color: var(--text-tertiary); }

.doc-badge {
    padding: 0.2rem 0.5rem;
    border-radius: 99px;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
}

.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-warning { background: var(--warning-light); color: var(--warning); }

.badge-pdf { background: #fef2f2; color: #ef4444; }
.badge-doc, .badge-docx { background: #eff6ff; color: #3b82f6; }
.badge-xls, .badge-xlsx { background: #f0fdf4; color: #22c55e; }
.badge-ppt, .badge-pptx { background: #fff7ed; color: #f97316; }
.badge-txt { background: #f8fafc; color: #6b7280; }
.badge-jpg, .badge-jpeg, .badge-png { background: #faf5ff; color: #a855f7; }

/* ============================================
   Activity List
   ============================================ */
.activity-list { display: flex; flex-direction: column; }

.activity-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border);
}

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

.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 0.4rem;
    flex-shrink: 0;
}

.activity-login { background: var(--success); }
.activity-upload { background: var(--primary); }
.activity-download { background: var(--info); }
.activity-delete { background: var(--danger); }
.activity-create { background: var(--success); }
.activity-update { background: var(--warning); }

.activity-info p { font-size: 0.85rem; }
.activity-time { font-size: 0.75rem; color: var(--text-tertiary); }

/* ============================================
   File Type Stats
   ============================================ */
.type-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.type-stat-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

.type-stat-item:hover { box-shadow: var(--shadow-sm); }

.type-stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.type-stat-name { font-weight: 700; font-size: 0.9rem; display: block; }
.type-stat-count { font-size: 0.8rem; color: var(--text-secondary); }
.type-stat-size { font-size: 0.75rem; color: var(--text-tertiary); display: block; }

/* ============================================
   Documents Layout
   ============================================ */
.docs-layout {
    display: flex;
    gap: 1.5rem;
}

.docs-sidebar {
    width: 240px;
    flex-shrink: 0;
}

.docs-main { flex: 1; min-width: 0; }

.folder-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: var(--transition);
    text-decoration: none;
}

.folder-item:hover { background: var(--bg-tertiary); text-decoration: none; }
.folder-item.active { background: var(--primary-10); color: var(--primary); font-weight: 600; }
.folder-count { margin-left: auto; font-size: 0.75rem; color: var(--text-tertiary); background: var(--bg-tertiary); padding: 0.1rem 0.4rem; border-radius: 99px; }

/* ============================================
   Document Cards (Grid View)
   ============================================ */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

.doc-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.doc-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.doc-card-preview {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--bg-tertiary);
}

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

.doc-card-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    width: 100%;
    height: 100%;
    justify-content: center;
}

.doc-type-label { font-size: 0.75rem; font-weight: 700; }

.doc-card-body { padding: 0.75rem 1rem; }
.doc-card-title { font-size: 0.9rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 0.25rem; }
.doc-card-meta { font-size: 0.8rem; color: var(--text-tertiary); margin-bottom: 0.5rem; }
.doc-card-footer { display: flex; justify-content: space-between; align-items: center; }
.doc-card-date { font-size: 0.75rem; color: var(--text-tertiary); }
.doc-card-actions { display: flex; gap: 0.25rem; }

/* ============================================
   Documents Table (List View)
   ============================================ */
.docs-table-wrapper { overflow-x: auto; }

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

.docs-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.docs-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.docs-table tr { cursor: pointer; transition: var(--transition); }
.docs-table tbody tr:hover { background: var(--bg-tertiary); }

.doc-name-cell { display: flex; align-items: center; gap: 0.75rem; }
.doc-icon-sm { font-size: 1.25rem; }
.doc-name-link { display: flex; align-items: center; gap: 0.75rem; color: var(--text-primary); }
.doc-name-link:hover { color: var(--primary); text-decoration: none; }

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

.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

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

.upload-icon { font-size: 3rem; display: block; margin-bottom: 1rem; }

.upload-zone h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.upload-zone p { color: var(--text-secondary); margin-bottom: 0.5rem; }
.upload-hint { font-size: 0.8rem; color: var(--text-tertiary); }

.upload-files { margin-bottom: 1.5rem; }

.upload-file-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
}

.upload-file-icon { font-size: 1.5rem; }
.upload-file-info { flex: 1; }
.upload-file-name { font-weight: 600; font-size: 0.9rem; display: block; }
.upload-file-size { font-size: 0.8rem; color: var(--text-tertiary); }

.upload-settings { margin-bottom: 1.5rem; }
.upload-settings h3 { margin-bottom: 1rem; font-size: 1.1rem; }
.upload-actions { display: flex; justify-content: flex-end; gap: 0.75rem; }

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.full-width { grid-column: 1 / -1; }

.progress-container { margin-top: 1rem; }
.progress-info { display: flex; justify-content: space-between; margin-bottom: 0.5rem; font-size: 0.9rem; }
.progress-bar { height: 8px; background: var(--bg-tertiary); border-radius: 99px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); border-radius: 99px; transition: width 0.3s ease; width: 0; }

/* ============================================
   Folders Page
   ============================================ */
.folders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}

.folder-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    transition: var(--transition);
    position: relative;
}

.folder-card:hover { box-shadow: var(--shadow-md); border-color: var(--folder-color, var(--border)); }

.folder-card-link { text-decoration: none; color: inherit; display: block; }
.folder-card-link:hover { text-decoration: none; }

.folder-card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.folder-card-name { font-size: 1rem; font-weight: 700; margin-bottom: 0.25rem; color: var(--text-primary); }
.folder-card-stats { font-size: 0.8rem; color: var(--text-tertiary); display: flex; gap: 0.5rem; }

.folder-card-actions {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    display: flex;
    gap: 0.25rem;
    opacity: 0;
    transition: var(--transition);
}

.folder-card:hover .folder-card-actions { opacity: 1; }

.inline-form { display: inline; }

/* ============================================
   View Document Page
   ============================================ */
.view-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 1.5rem;
    align-items: start;
}

.view-preview { overflow: hidden; }

.image-preview, .pdf-preview, .video-preview { width: 100%; }
.image-preview img { max-height: 500px; object-fit: contain; margin: 0 auto; display: block; }
.pdf-preview iframe { width: 100%; height: 500px; }
.video-preview video { width: 100%; }

.audio-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3rem;
    gap: 1.5rem;
}

.audio-icon { font-size: 4rem; padding: 2rem; border-radius: 50%; }

.text-preview { max-height: 500px; overflow: auto; }
.text-preview pre {
    padding: 1.25rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    white-space: pre-wrap;
    word-break: break-word;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
    margin: 0;
}

.no-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    text-align: center;
}

.no-preview h3 { margin-top: 1rem; }
.no-preview p { color: var(--text-secondary); margin: 0.5rem 0 1.5rem; }

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.info-item { display: flex; flex-direction: column; gap: 0.125rem; }
.info-item label { font-size: 0.75rem; font-weight: 600; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.05em; }
.info-item span { font-size: 0.9rem; }

.info-section { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.info-section label { font-size: 0.75rem; font-weight: 600; color: var(--text-tertiary); text-transform: uppercase; margin-bottom: 0.5rem; display: block; }

.tags-list { display: flex; flex-wrap: wrap; gap: 0.375rem; }

.tag {
    padding: 0.2rem 0.6rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 99px;
    font-size: 0.8rem;
    font-weight: 500;
}

.info-actions { margin-top: 1.25rem; display: flex; flex-direction: column; gap: 0.5rem; }

/* Version History */
.version-list { position: relative; }

.version-item {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

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

.version-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    margin-top: 0.3rem;
    flex-shrink: 0;
}

.version-item.current .version-dot { background: var(--primary); }

.version-label { font-weight: 700; font-size: 0.9rem; display: block; }
.version-size { font-size: 0.8rem; color: var(--text-tertiary); }
.version-date { font-size: 0.8rem; color: var(--text-tertiary); }
.version-notes { display: block; font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.25rem; }

/* ============================================
   Search Page
   ============================================ */
.search-form-large { display: flex; flex-direction: column; gap: 1rem; }

.search-input-wrapper { position: relative; }

.search-icon-lg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: var(--text-tertiary);
}

.search-input-lg {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    font-size: 1.1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

.search-input-lg:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-10); }

.search-filters { display: flex; gap: 0.75rem; flex-wrap: wrap; }

.search-results-info { margin-bottom: 1rem; font-size: 0.9rem; color: var(--text-secondary); }

/* ============================================
   Empty State
   ============================================ */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4rem 2rem;
    text-align: center;
}

.empty-icon { font-size: 4rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.empty-state p { color: var(--text-secondary); margin-bottom: 1.5rem; }

.empty-state-sm {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    text-align: center;
    color: var(--text-tertiary);
}

.empty-state-sm p { font-size: 0.9rem; }

/* ============================================
   Forms
   ============================================ */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.375rem; color: var(--text-primary); }

.form-control, .form-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-10);
}

.form-control-sm, .form-select-sm { padding: 0.35rem 0.5rem; font-size: 0.8rem; }
textarea.form-control { resize: vertical; }

.password-field { position: relative; }
.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.checkbox-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; cursor: pointer; }
.form-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9rem;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.alert-success { background: var(--success-light); color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }

.alert-close { background: none; border: none; cursor: pointer; font-size: 1rem; opacity: 0.7; }
.alert-close:hover { opacity: 1; }

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    animation: fadeIn 0.2s ease;
}

.modal-overlay.active {
    display: flex;
}

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

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlide 0.3s ease;
}

@keyframes modalSlide {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-sm { max-width: 400px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 1.1rem; font-weight: 700; }

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-tertiary);
    transition: var(--transition);
    line-height: 1;
}

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

.modal-body { padding: 1.5rem; }
.modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 0.5rem; }

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    animation: toastIn 0.3s ease;
    font-size: 0.9rem;
}

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

.toast-success { border-left: 3px solid var(--success); }
.toast-error { border-left: 3px solid var(--danger); }
.toast-info { border-left: 3px solid var(--info); }

/* ============================================
   Toggle Switch
   ============================================ */
.toggle { position: relative; display: inline-block; width: 44px; height: 24px; cursor: pointer; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--border);
    border-radius: 99px;
    transition: var(--transition);
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: white;
    left: 3px;
    top: 3px;
    transition: var(--transition);
}
.toggle input:checked + .toggle-slider { background: var(--primary); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); }

/* ============================================
   Icon & Color Picker
   ============================================ */
.icon-picker, .color-picker {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.icon-option, .color-option {
    cursor: pointer;
}

.icon-option input, .color-option input { display: none; }

.icon-option span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 1.25rem;
    transition: var(--transition);
}

.icon-option span:hover, .icon-option input:checked + span { border-color: var(--primary); background: var(--primary-light); }

.color-option span {
    display: block;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 3px solid transparent;
    transition: var(--transition);
}

.color-option input:checked + span { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--bg-secondary); }

/* ============================================
   Shared Page
   ============================================ */
.shared-list { display: flex; flex-direction: column; gap: 0.75rem; }

.shared-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}

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

.shared-info { flex: 1; min-width: 0; }
.shared-title { font-weight: 600; display: block; }
.shared-meta { font-size: 0.8rem; color: var(--text-tertiary); }
.shared-link { display: flex; gap: 0.5rem; align-items: center; }

/* ============================================
   Profile Page
   ============================================ */
.profile-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.profile-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
}

.profile-info h2 { font-size: 1.25rem; margin-bottom: 0.25rem; }
.profile-info p { color: var(--text-secondary); font-size: 0.9rem; }

.profile-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.profile-stat {
    text-align: center;
    padding: 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.profile-stat-value { font-size: 1.25rem; font-weight: 800; display: block; }
.profile-stat-label { font-size: 0.75rem; color: var(--text-secondary); }

.profile-details { display: flex; flex-direction: column; gap: 0.75rem; }

/* ============================================
   Settings
   ============================================ */
.settings-section {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.settings-section:last-child { border-bottom: none; }
.settings-section h4 { margin-bottom: 1rem; font-size: 1rem; }

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
}

.setting-item strong { font-size: 0.9rem; }
.text-muted { font-size: 0.8rem; color: var(--text-tertiary); }

.danger-zone { border: 1px solid var(--danger); border-radius: var(--radius); padding: 1rem 1.25rem; }
.danger-zone h4 { color: var(--danger); }

/* ============================================
   User Avatar Small (Admin)
   ============================================ */
.user-avatar-sm {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* ============================================
   Sidebar Overlay (Mobile)
   ============================================ */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
}

.sidebar-overlay.active { display: block; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .grid-2 { grid-template-columns: 1fr; }
    .view-layout { grid-template-columns: 1fr; }
    .docs-sidebar { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-close { display: block; }
    .menu-toggle { display: block; }
    
    .main-content {
        margin-left: 0;
    }
    
    .topbar { padding: 0 1rem; }
    .user-name { display: none; }
    .dropdown-arrow { display: none; }
    
    .page-content { padding: 1rem; }
    .page-header { flex-direction: column; }
    .page-actions { width: 100%; justify-content: flex-end; }
    
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    
    .docs-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .folders-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    
    .search-filters { flex-direction: column; }
    
    .form-grid { grid-template-columns: 1fr; }
    .full-width { grid-column: auto; }
    
    .info-grid { grid-template-columns: 1fr; }
    
    .profile-stats { grid-template-columns: repeat(2, 1fr); }
    .profile-header { flex-direction: column; text-align: center; }
    
    .shared-item { flex-direction: column; align-items: flex-start; }
    .shared-link { width: 100%; }
    .shared-link input { flex: 1; }
    
    .modal { margin: 0.5rem; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .stat-card { padding: 1rem; }
    
    .page-title { font-size: 1.25rem; }
    
    .upload-zone { padding: 2rem 1rem; }
    
    .type-stats-grid { grid-template-columns: 1fr; }
}

/* ============================================
   Scrollbar Styling
   ============================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .sidebar, .topbar, .page-actions { display: none !important; }
    .main-content { margin-left: 0 !important; }
}