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

:root {
    --primary: #16a34a;
    --primary-dark: #15803d;
    --primary-light: #86efac;
    --success: #16a34a;
    --warning: #ea580c;
    --danger: #dc2626;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --sidebar-width: 250px;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #059669 0%, #22c55e 50%, #86efac 100%);
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(5,150,105,0.3);
    padding: 40px;
    width: 100%;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.login-header p {
    color: var(--gray-500);
    font-size: 14px;
}

.login-footer {
    text-align: center;
    padding: 20px;
    color: rgba(255,255,255,0.8);
    font-size: 13px;
}

.login-footer a {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
}

.login-footer a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, #15803d 0%, #16a34a 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 24px;
    font-size: 18px;
    font-weight: 700;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.sidebar-menu {
    list-style: none;
    padding: 12px 0;
    flex: 1;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 24px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-menu li a svg {
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.sidebar-menu li a:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.sidebar-menu li a:hover svg {
    opacity: 1;
}

.sidebar-menu li a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
    border-left-color: #fff;
}

.sidebar-menu li a.active svg {
    opacity: 1;
}

/* Sidebar Toggle (mobile) */
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--gray-600);
    margin-right: 12px;
}

.sidebar-toggle svg {
    display: block;
}

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-width: 0;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 32px;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    gap: 12px;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-left h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
    white-space: nowrap;
}

.topbar-date {
    color: var(--gray-500);
    font-size: 14px;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.topbar-user-info {
    text-align: right;
    line-height: 1.3;
}

.topbar-user-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
}

.topbar-user-role {
    font-size: 12px;
    color: var(--gray-500);
}

.btn-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    color: var(--gray-500);
    transition: all 0.2s;
    text-decoration: none;
}

.btn-logout:hover {
    background: #fce4ec;
    color: #c62828;
}

.content {
    padding: 24px 32px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 2px;
}

/* Card */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--gray-200);
}

.card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-900);
}

.card-body {
    padding: 20px 24px;
}

/* Table */
.table-wrapper {
    overflow-x: auto;
}

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

.table th {
    text-align: left;
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    border-bottom: 2px solid var(--gray-200);
}

.table td {
    padding: 12px;
    font-size: 14px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.table tbody tr.row-danger {
    background: #fff5f5;
}

.table tbody tr.row-danger:hover {
    background: #ffe8e8;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-warning {
    background: #fff3cd;
    color: #856404;
}

.badge-danger {
    background: #fce4ec;
    color: #c62828;
}

.badge-secondary {
    background: #e2e8f0;
    color: #64748b;
}

/* Form */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: #fff;
    color: var(--gray-800);
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(22,163,74,0.12);
}

/* Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

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

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

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

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

.btn-danger:hover {
    background: #b91c1c;
}

/* Alert */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 14px;
    margin-bottom: 16px;
}

.alert-error {
    background: #fce4ec;
    color: #c62828;
    border: 1px solid #f8bbd0;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-500);
}

.empty-state p {
    margin-bottom: 16px;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    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: #fff;
    border-radius: 12px;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 0;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-500);
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.modal-close:hover {
    color: var(--gray-800);
}

.modal-body {
    padding: 20px 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 0 24px 20px;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--gray-600);
    text-decoration: none;
    background: var(--gray-100);
    transition: all 0.2s;
}

.page-link:hover {
    background: var(--gray-200);
}

.page-link.active {
    background: var(--primary);
    color: #fff;
}

/* Text */
.text-muted {
    color: var(--gray-500);
}

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

/* Responsive */
@media (max-width: 768px) {
    .sidebar-toggle {
        display: block;
    }

    .sidebar-overlay {
        display: block;
        pointer-events: none;
    }

    .sidebar-overlay.active {
        pointer-events: all;
    }

    .sidebar {
        width: 280px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

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

    .main-content {
        margin-left: 0;
    }

    .content {
        padding: 16px;
    }

    .topbar {
        padding: 12px 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .login-card {
        padding: 24px;
    }
}

.app-footer {
    text-align: center;
    padding: 20px;
    color: var(--gray-500);
    font-size: 13px;
    border-top: 1px solid var(--gray-200);
    margin-top: 32px;
}

.app-footer a {
    color: var(--green);
    text-decoration: none;
    font-weight: 600;
}

.app-footer a:hover {
    text-decoration: underline;
}

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