/* ============================================================
   HR BACKOFFICE - MAIN STYLESHEET
   Capital One Real Estate Co., Ltd.
   White Clean UI Theme
   ============================================================ */

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

:root {
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #EFF6FF;
    --success: #059669;
    --success-light: #D1FAE5;
    --warning: #D97706;
    --warning-light: #FEF3C7;
    --danger: #DC2626;
    --danger-light: #FEE2E2;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    --sidebar-width: 240px;
    --header-height: 56px;
}

html { font-size: 14px; }

body {
    font-family: 'Sarabun', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.5;
    color: var(--gray-900);
    background: var(--gray-50);
    min-height: 100vh;
}

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

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: #fff;
    border-right: 1px solid var(--gray-200);
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header { padding: 16px; border-bottom: 1px solid var(--gray-100); }

.sidebar-logo {
    font-size: 13px;
    font-weight: 700;
    color: var(--gray-900);
    text-decoration: none;
    display: block;
    line-height: 1.3;
}

.sidebar-logo small { font-size: 11px; font-weight: 400; color: var(--gray-500); display: block; margin-top: 2px; }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 8px 0; }

.nav-group { margin-bottom: 4px; }
.nav-group-label { padding: 12px 16px 6px; font-size: 10px; font-weight: 600; color: var(--gray-400); text-transform: uppercase; letter-spacing: 0.5px; }

.nav-item {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    color: var(--gray-600);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.nav-item:hover { background: var(--gray-50); color: var(--gray-900); text-decoration: none; }

.nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 500;
}

.nav-icon { width: 20px; height: 20px; margin-right: 10px; flex-shrink: 0; }

/* Header */
.header {
    height: var(--header-height);
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left { display: flex; align-items: center; gap: 16px; }
.header-right { display: flex; align-items: center; gap: 12px; }

.menu-toggle { display: none; background: none; border: none; padding: 8px; cursor: pointer; color: var(--gray-600); }

.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.breadcrumb a { color: var(--gray-500); text-decoration: none; }
.breadcrumb a:hover { color: var(--gray-700); }
.breadcrumb-sep { color: var(--gray-300); }
.breadcrumb-current { color: var(--gray-900); font-weight: 500; }

/* User Menu */
.user-menu { position: relative; }

.user-menu-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    cursor: pointer;
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: 12px;
}

.user-info { text-align: left; }
.user-name { font-size: 13px; font-weight: 500; color: var(--gray-900); }
.user-role { font-size: 11px; color: var(--gray-500); }

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 4px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    min-width: 160px;
    display: none;
    z-index: 200;
    overflow: hidden;
}

.user-menu:hover .dropdown-menu, .dropdown-menu.show { display: block; }

.dropdown-item { display: block; padding: 10px 16px; color: var(--gray-700); text-decoration: none; }
.dropdown-item:hover { background: var(--gray-50); text-decoration: none; }
.dropdown-divider { border-top: 1px solid var(--gray-100); margin: 4px 0; }
.dropdown-item.text-danger { color: var(--danger); }

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

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 16px; }
.page-title { font-size: 24px; font-weight: 600; color: var(--gray-900); margin: 0; }
.page-actions { display: flex; gap: 8px; }

/* Cards */
.card { background: #fff; border: 1px solid var(--gray-200); border-radius: 8px; margin-bottom: 24px; }
.card-header { padding: 16px 20px; border-bottom: 1px solid var(--gray-100); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 16px; font-weight: 600; color: var(--gray-900); margin: 0; }
.card-body { padding: 20px; }
.card-footer { padding: 16px 20px; border-top: 1px solid var(--gray-100); background: var(--gray-50); }

/* Stat Cards */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: #fff; border: 1px solid var(--gray-200); border-radius: 8px; padding: 20px; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--gray-900); }
.stat-label { font-size: 13px; color: var(--gray-500); margin-top: 4px; }
.stat-card.success .stat-value { color: var(--success); }
.stat-card.warning .stat-value { color: var(--warning); }
.stat-card.danger .stat-value { color: var(--danger); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    white-space: nowrap;
}

.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

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

.btn-secondary { background: #fff; border: 1px solid var(--gray-300); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-50); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #047857; }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #B91C1C; }

.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-icon { padding: 8px; }
.btn-icon svg { width: 18px; height: 18px; }

/* Forms */
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; color: var(--gray-700); }
.form-label .required { color: var(--danger); }

.form-control {
    width: 100%;
    padding: 10px 12px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    background: #fff;
    color: var(--gray-900);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.form-control:disabled { background: var(--gray-100); cursor: not-allowed; }
.form-control.is-invalid { border-color: var(--danger); }

.form-select { appearance: none; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e"); background-position: right 10px center; background-repeat: no-repeat; background-size: 16px; padding-right: 36px; }

.form-text { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.invalid-feedback { font-size: 12px; color: var(--danger); margin-top: 4px; }

.form-check { display: flex; align-items: center; gap: 8px; }
.form-check-input { width: 16px; height: 16px; }
.form-check-label { font-size: 14px; color: var(--gray-700); cursor: pointer; }

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

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--gray-100); }
.table th { background: var(--gray-50); font-weight: 500; color: var(--gray-600); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.table tbody tr:hover { background: var(--gray-50); }
.table-actions { display: flex; gap: 4px; }

/* Pagination */
.pagination { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; flex-wrap: wrap; gap: 16px; }
.pagination-info { font-size: 13px; color: var(--gray-600); }
.pagination-links { display: flex; gap: 4px; }
.pagination-link { padding: 8px 12px; border: 1px solid var(--gray-200); border-radius: 6px; color: var(--gray-700); font-size: 13px; text-decoration: none; }
.pagination-link:hover { background: var(--gray-50); text-decoration: none; }
.pagination-link.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination-link.disabled { opacity: 0.5; pointer-events: none; }

/* Badges */
.badge { display: inline-flex; align-items: center; padding: 3px 10px; font-size: 12px; font-weight: 500; border-radius: 9999px; }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-info { background: #DBEAFE; color: #1D4ED8; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }
.badge-purple { background: #EDE9FE; color: #7C3AED; }

/* Status Badges */
.status-present { background: var(--success-light); color: var(--success); }
.status-late { background: var(--warning-light); color: var(--warning); }
.status-absent { background: var(--danger-light); color: var(--danger); }
.status-on_leave { background: #DBEAFE; color: #1D4ED8; }
.status-holiday { background: #EDE9FE; color: #7C3AED; }
.status-sent_home { background: #FCE7F3; color: #BE185D; }
.status-no_schedule { background: var(--gray-100); color: var(--gray-600); }

/* Alerts */
.alert { padding: 14px 16px; border-radius: 8px; margin-bottom: 16px; display: flex; align-items: flex-start; gap: 12px; }
.alert-success { background: var(--success-light); color: #065F46; border: 1px solid #A7F3D0; }
.alert-danger { background: var(--danger-light); color: #991B1B; border: 1px solid #FECACA; }
.alert-warning { background: var(--warning-light); color: #92400E; border: 1px solid #FDE68A; }
.alert-info { background: #DBEAFE; color: #1E40AF; border: 1px solid #BFDBFE; }
.alert-icon { flex-shrink: 0; }
.alert-content { flex: 1; }
.alert-close { background: none; border: none; cursor: pointer; opacity: 0.6; }
.alert-close:hover { opacity: 1; }

/* Filter Bar */
.filter-bar { padding: 16px 20px; background: var(--gray-50); border-bottom: 1px solid var(--gray-100); }
.filter-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.filter-group { flex: 1; min-width: 150px; }
.filter-group label { display: block; font-size: 12px; color: var(--gray-600); margin-bottom: 4px; }
.filter-group .form-control { padding: 8px 12px; }

/* Modal */
.modal-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1000; display: none; }
.modal-backdrop.show { display: flex; align-items: center; justify-content: center; }
.modal { background: #fff; border-radius: 12px; max-width: 500px; width: 100%; max-height: 90vh; overflow: hidden; margin: 20px; }
.modal-lg { max-width: 800px; }
.modal-header { padding: 20px; border-bottom: 1px solid var(--gray-100); display: flex; align-items: center; justify-content: space-between; }
.modal-title { font-size: 18px; font-weight: 600; }
.modal-close { background: none; border: none; cursor: pointer; color: var(--gray-400); font-size: 24px; line-height: 1; }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-footer { padding: 16px 20px; border-top: 1px solid var(--gray-100); display: flex; justify-content: flex-end; gap: 8px; }

/* Empty State */
.empty-state { text-align: center; padding: 48px 20px; }
.empty-icon { width: 64px; height: 64px; margin: 0 auto 16px; color: var(--gray-300); }
.empty-title { font-size: 16px; font-weight: 600; color: var(--gray-900); margin-bottom: 8px; }
.empty-text { font-size: 14px; color: var(--gray-500); margin-bottom: 16px; }

/* Responsive */
@media (max-width: 1024px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-wrapper { margin-left: 0; }
    .menu-toggle { display: block; }
}

@media (max-width: 768px) {
    .content { padding: 16px; }
    .page-header { flex-direction: column; align-items: flex-start; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
    .table th, .table td { padding: 10px 12px; }
    .filter-row { flex-direction: column; }
    .filter-group { width: 100%; }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
    .pagination { flex-direction: column; text-align: center; }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-500); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.font-medium { font-weight: 500; }
.font-bold { font-weight: 700; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mb-4 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 16px; }
.hidden { display: none !important; }