@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #1F4E79;
    --primary-light: #2E75B6;
    --primary-dark: #163a5c;
    --accent: #E8A838;
    --danger: #C00000;
    --danger-bg: #FFF2F2;
    --warning: #BF8F00;
    --warning-bg: #FFFBEF;
    --success: #2D8B4E;
    --success-bg: #EAFAF1;
    --bg: #F4F7FA;
    --card: #FFFFFF;
    --text: #2C3E50;
    --text-light: #7F8C9B;
    --border: #E2E8F0;
    --shadow: 0 2px 12px rgba(31,78,121,0.08);
    --shadow-lg: 0 8px 30px rgba(31,78,121,0.12);
    --radius: 10px;
}

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

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

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0; top: 0;
    width: 260px;
    height: 100vh;
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    z-index: 100;
    overflow-y: auto;
    transition: transform 0.3s;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.sidebar-header h2 {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.sidebar-header small {
    font-size: 11px;
    opacity: 0.7;
    display: block;
    margin-top: 4px;
}

.sidebar-nav { padding: 16px 0; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: rgba(255,255,255,0.75);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255,255,255,0.1);
    color: white;
    border-left-color: var(--accent);
}

.sidebar-nav a .icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-nav .nav-divider {
    height: 1px;
    background: rgba(255,255,255,0.1);
    margin: 12px 20px;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    padding: 24px 32px;
    min-height: 100vh;
}

/* Top Bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.top-bar h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.top-bar .date-display {
    font-size: 13px;
    color: var(--text-light);
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.stat-card.danger { border-left-color: var(--danger); }
.stat-card.warning { border-left-color: var(--warning); }
.stat-card.success { border-left-color: var(--success); }

.stat-card .stat-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.stat-card .stat-number {
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
}

.stat-card.danger .stat-number { color: var(--danger); }
.stat-card.warning .stat-number { color: var(--warning); }
.stat-card.success .stat-number { color: var(--success); }

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
    font-weight: 500;
}

/* Cards / Panels */
.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.card-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
}

.card-body { padding: 20px; }

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

table th {
    background: var(--primary);
    color: white;
    padding: 12px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

table tbody tr:hover {
    background: #F8FAFC;
}

table tbody tr.row-expired {
    background: var(--danger-bg);
}

table tbody tr.row-warning {
    background: var(--warning-bg);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-danger { background: #FEE2E2; color: var(--danger); }
.badge-warning { background: #FEF3C7; color: var(--warning); }
.badge-success { background: #D1FAE5; color: var(--success); }
.badge-secondary { background: #E5E7EB; color: #6B7280; }
.badge-primary { background: #DBEAFE; color: var(--primary); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: 8px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #247040; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #A00000; }
.btn-warning { background: var(--warning); color: white; }
.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: white; }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    color: var(--text);
    transition: border-color 0.2s;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(31,78,121,0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #0d2137 100%);
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-card h1 {
    font-size: 22px;
    color: var(--primary);
    text-align: center;
    margin-bottom: 6px;
}

.login-card .subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 13px;
    margin-bottom: 28px;
}

.login-card .btn-primary {
    width: 100%;
    padding: 12px;
    font-size: 15px;
    justify-content: center;
}

/* Alert Messages */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid #A7F3D0; }
.alert-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid #FECACA; }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid #FDE68A; }

/* Expiry Alert List */
.alert-list { list-style: none; }
.alert-list li {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.alert-list li:last-child { border-bottom: none; }
.alert-list .emp-name { font-weight: 600; }
.alert-list .doc-info { font-size: 12px; color: var(--text-light); }

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal {
    background: white;
    border-radius: 16px;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 { color: var(--primary); }

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
    padding: 4px;
}

.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Utility */
.text-center { text-align: center; }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-success { color: var(--success); }
.mt-2 { margin-top: 8px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }

/* Search */
.search-box {
    position: relative;
}

.search-box input {
    padding-left: 36px;
}

.search-box .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

/* Hamburger for mobile */
.hamburger {
    display: none;
    position: fixed;
    top: 16px; left: 16px;
    z-index: 150;
    background: var(--primary);
    color: white;
    border: none;
    width: 40px; height: 40px;
    border-radius: 8px;
    font-size: 20px;
    cursor: pointer;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; padding: 16px; padding-top: 60px; }
    .hamburger { display: block; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .top-bar h1 { font-size: 20px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .login-card { padding: 28px 20px; }
}

/* Print */
@media print {
    .sidebar, .hamburger, .btn, .top-bar .date-display { display: none !important; }
    .main-content { margin-left: 0; }
}