:root {
    --primary: #2d6a4f;
    --primary-dark: #1b4332;
    --primary-light: #40916c;
    --accent: #52b788;
    --accent-light: #d8f3dc;
    --bg: #f0f7f4;
    --surface: #ffffff;
    --text: #1a1a2e;
    --text-muted: #6b7280;
    --border: #d1d5db;
    --danger: #dc2626;
    --warning: #f59e0b;
    --success: #16a34a;
    --info: #0284c7;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px 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);
    --radius: 8px;
    --sidebar-width: 260px;
    --header-height: 60px;
}

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

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

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

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

/* Main Content Wrapper */
.main-content-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s;
}

.main-content-wrapper.sidebar-collapsed {
    margin-left: 64px;
}

/* Page Content Wrapper */
.page-content-wrapper {
    flex: 1;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--primary-dark);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, width 0.3s;
}

/* Collapsed Sidebar */
.sidebar.collapsed {
    width: 64px;
}

.sidebar.collapsed .sidebar-logo h2,
.sidebar.collapsed .sidebar-logo small,
.sidebar.collapsed .sidebar-nav .nav-section,
.sidebar.collapsed .sidebar-nav a span:not(.icon),
.sidebar.collapsed .sidebar-footer {
    display: none;
}

.sidebar.collapsed .sidebar-nav a {
    justify-content: center;
    padding: 12px 0;
}

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

.sidebar-logo h2 { font-size: 1.1rem; font-weight: 700; }
.sidebar-logo small { font-size: 0.75rem; opacity: 0.8; }
.sidebar-logo .logo-tree { font-size: 2rem; display: block; margin-bottom: 4px; }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 0; }

.sidebar-nav .nav-section {
    padding: 8px 20px 4px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.6;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 0.9rem;
    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: #fff;
    border-left-color: var(--accent);
}

.sidebar-nav a .icon { width: 20px; text-align: center; font-size: 1.1rem; }

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 0.8rem;
    opacity: 0.7;
}

/* Main Content Wrapper */
.main-content-wrapper {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s;
}

/* Page Content Wrapper */
.page-content-wrapper {
    flex: 1;
}

/* Header */
.top-header {
    height: var(--header-height);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow);
}

.top-header .page-title { font-size: 1.25rem; font-weight: 600; color: var(--text); }

.top-header .header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.top-header .sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 8px;
    border-radius: var(--radius);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.top-header .sidebar-toggle:hover {
    background: var(--bg);
    color: var(--primary);
}

.top-header .header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
}

.user-badge .avatar {
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
}

.user-badge .role-badge {
    font-size: 0.7rem;
    background: var(--accent-light);
    color: var(--primary-dark);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
}

.btn-logout {
    background: none;
    border: 1px solid var(--border);
    padding: 6px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: all 0.2s;
}

.btn-logout:hover {
    background: #fef2f2;
    color: var(--danger);
    border-color: var(--danger);
}

/* Page Content */
.page-content { padding: 24px; flex: 1; }

/* Sidebar Toggle - Mobile */
@media (max-width: 768px) {
    .top-header .sidebar-toggle {
        display: flex;
    }
    
    .main-content-wrapper {
        margin-left: 0;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: flex !important;
    }
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

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

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

.card-body { padding: 20px; }

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

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

.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.green { background: #d8f3dc; color: var(--primary); }
.stat-icon.blue { background: #dbeafe; color: var(--info); }
.stat-icon.yellow { background: #fef3c7; color: var(--warning); }
.stat-icon.red { background: #fee2e2; color: var(--danger); }
.stat-icon.purple { background: #e9d5ff; color: #7c3aed; }

.stat-content h4 { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; }
.stat-content .stat-number { font-size: 1.8rem; font-weight: 700; color: var(--text); line-height: 1.2; }
.stat-content .stat-detail { font-size: 0.8rem; color: var(--text-muted); }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; }

.data-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border);
    background: #f9fafb;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.data-table tr:hover td { background: #f9fafb; }

.data-table .actions { display: flex; gap: 8px; }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: #d8f3dc; color: #166534; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #dbeafe; color: #1e40af; }
.badge-neutral { background: #f3f4f6; color: #4b5563; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

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

.btn-outline {
    background: transparent;
    border-color: var(--border);
    color: var(--text);
}

.btn-outline:hover { background: var(--bg); border-color: var(--text-muted); }

.btn-sm { padding: 4px 10px; font-size: 0.8rem; }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }

.btn-warning { background: var(--warning); color: #fff; }
.btn-warning:hover { background: #d97706; }

.btn-icon {
    width: 32px; height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

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

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: border-color 0.2s;
    background: var(--surface);
    color: var(--text);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.15);
}

select.form-control { cursor: pointer; }

textarea.form-control { resize: vertical; min-height: 80px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 768px) { .form-row { grid-template-columns: 1fr; } }

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 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: var(--surface);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
}

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

.modal-header h3 { font-size: 1.1rem; font-weight: 600; }

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

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

.modal-body { padding: 20px; }

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
}

.empty-state .icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state h3 { font-size: 1.1rem; color: var(--text); margin-bottom: 4px; }
.empty-state p { font-size: 0.9rem; }

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

.login-card {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 420px;
    padding: 40px;
}

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

.login-card .logo .tree-icon { font-size: 3rem; }
.login-card .logo h1 { font-size: 1.5rem; color: var(--primary-dark); margin-top: 8px; }
.login-card .logo p { font-size: 0.85rem; color: var(--text-muted); }

.login-error {
    background: #fee2e2;
    color: #991b1b;
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    margin-bottom: 16px;
    display: none;
}

.login-error.show { display: block; }

/* Alert */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-success { background: #d8f3dc; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* Status indicators */
.status-dot {
    display: inline-block;
    width: 8px; height: 8px;
    border-radius: 50%;
    margin-right: 6px;
}

.status-dot.active { background: var(--success); }
.status-dot.pending { background: var(--warning); }
.status-dot.inactive { background: var(--text-muted); }
.status-dot.expired { background: var(--danger); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Utility */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-4 { gap: 16px; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content { margin-left: 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .login-card { padding: 24px; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .top-header { padding: 0 16px; }
    .page-content { padding: 16px; }
}

/* LGU Selector */
.lgu-selector {
    margin-bottom: 12px;
    padding: 12px;
    background: var(--bg);
    border-radius: 8px;
    border: 1px solid var(--border);
}
.lgu-select {
    font-size: 0.8rem;
}

/* LGU Badge in Header */
.lgu-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: #e8f5e9;
    border: 1px solid #a5d6a7;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #2e7d32;
    margin-right: 8px;
}