/**
 * Secure Batch File Viewer - Admin Panel Stylesheet
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --sidebar-bg: #0f172a;
    --sidebar-text: #94a3b8;
    --sidebar-active: #ffffff;
    --body-bg: #f8fafc;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 0.75rem;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
}

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-main);
    line-height: 1.5;
    min-height: 100vh;
}

/* -------------------------------------------------------------
   Layout Structure
   ------------------------------------------------------------- */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
}

.sidebar-brand {
    padding: 1.5rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.brand-text h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
}

.brand-text span {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #818cf8;
    font-weight: 700;
}

.sidebar-nav {
    flex: 1;
    padding: 1.25rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    overflow-y: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.15s ease;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #ffffff;
}

.nav-link.active {
    background: var(--primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 1rem;
}

.sidebar-user {
    padding: 1rem 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: #ffffff;
}

.user-role {
    font-size: 0.72rem;
    color: #94a3b8;
}

.btn-logout-icon {
    color: #94a3b8;
    text-decoration: none;
    padding: 0.4rem;
    border-radius: 0.375rem;
    transition: background 0.15s, color 0.15s;
}

.btn-logout-icon:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

/* Main Content Area */
.admin-main {
    margin-left: 260px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-topbar {
    height: 68px;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 90;
}

.topbar-title h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.admin-content {
    padding: 2rem;
    flex: 1;
}

/* -------------------------------------------------------------
   Stat Cards Grid
   ------------------------------------------------------------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stat-info span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.stat-info h3 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-main);
    margin-top: 0.25rem;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-blue { background: #dbeafe; color: #1d4ed8; }
.stat-icon-green { background: #d1fae5; color: #047857; }
.stat-icon-purple { background: #f3e8ff; color: #7e22ce; }
.stat-icon-red { background: #fee2e2; color: #b91c1c; }

/* -------------------------------------------------------------
   Card & Table Containers
   ------------------------------------------------------------- */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    overflow: hidden;
}

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

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
}

.card-body {
    padding: 1.5rem;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.search-input {
    padding: 0.55rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    min-width: 240px;
}

.search-input:focus, .form-select:focus, .form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.form-select, .form-input {
    padding: 0.55rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.875rem;
    background-color: #ffffff;
}

/* Data Tables */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.875rem;
}

.data-table th {
    background: #f8fafc;
    padding: 0.85rem 1.25rem;
    font-weight: 700;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
}

.data-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background-color: #f8fafc;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 0.375rem;
}

.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info { background: #e0f2fe; color: #075985; }
.badge-neutral { background: #f1f5f9; color: #475569; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.55rem 1.15rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 0.5rem;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
}

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

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

.btn-secondary {
    background: #ffffff;
    border-color: var(--border);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: #f1f5f9;
}

.btn-danger {
    background: #fee2e2;
    color: #991b1b;
}

.btn-danger:hover {
    background: #ef4444;
    color: #ffffff;
}

.btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.78rem;
    border-radius: 0.375rem;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
}

.pagination-links {
    display: flex;
    gap: 0.35rem;
}

.page-btn {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--border);
    background: #ffffff;
    color: var(--text-main);
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 600;
}

.page-btn.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.form-text {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.batch-checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
    padding: 1rem;
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    max-height: 200px;
    overflow-y: auto;
}

/* Login Page Layout */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    padding: 1.5rem;
}

.auth-card {
    background: #ffffff;
    width: 100%;
    max-width: 420px;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
    padding: 2.5rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: #0f172a;
}

.auth-header p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
}