:root {
    --color-primary: #0e3a3a;
    --color-primary-dark: #082626;
    --color-primary-light: #1a5050;
    --color-accent: #f5b133;
    --color-accent-dark: #d99820;
    --color-success: #1cc88a;
    --color-danger: #e74a3b;
    --color-bg: #f1f5f3;
    --color-card-shadow: rgba(14, 58, 58, 0.08);
}

body {
    font-family: 'Sarabun', 'Inter', 'Segoe UI', 'Tahoma', sans-serif;
    background: var(--color-bg);
    color: #2d3748;
}

/* ---------- Navbar ---------- */
.navbar {
    background: var(--color-primary) !important;
    box-shadow: 0 2px 12px rgba(14, 58, 58, 0.15);
}
.navbar-brand {
    font-size: 1.05rem;
    color: #fff !important;
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
}
.navbar-brand i {
    color: var(--color-accent);
}
.navbar-brand .brand-sub {
    font-size: 0.7rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.65);
    letter-spacing: 0.5px;
    margin-top: 2px;
}
.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.2s;
}
.navbar-dark .navbar-nav .nav-link:hover,
.navbar-dark .navbar-nav .nav-link.active {
    color: var(--color-accent);
    font-weight: 600;
}

/* ---------- Cards ---------- */
.card {
    border: none;
    box-shadow: 0 4px 16px var(--color-card-shadow);
    border-radius: 1rem;
    background: #fff;
}
.card-header {
    background: #fff;
    border-bottom: 1px solid #eef0f4;
    font-weight: 600;
    padding: 1rem 1.25rem;
    border-radius: 1rem 1rem 0 0 !important;
}

/* ---------- Stat Cards ---------- */
.stat-card {
    color: #fff;
    border-radius: 1rem;
    overflow: hidden;
    border: none;
}
.stat-card .stat-icon {
    font-size: 2.5rem;
    opacity: 0.35;
}
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
}

.bg-grad-blue { background: linear-gradient(135deg, #0e3a3a 0%, #082626 100%); }
.bg-grad-green { background: linear-gradient(135deg, #1a5050 0%, #0e3a3a 100%); }
.bg-grad-orange { background: linear-gradient(135deg, #f5b133 0%, #d99820 100%); color: #082626 !important; }
.bg-grad-orange .stat-icon { opacity: 0.25; }
.bg-grad-red { background: linear-gradient(135deg, #e74a3b 0%, #be2617 100%); }

/* ---------- Tables ---------- */
.table thead th {
    background: #f0f4f2;
    border-bottom: 2px solid var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-primary);
}
.table-hover tbody tr:hover {
    background-color: #f7faf9;
}

/* ---------- Buttons ---------- */
.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover,
.btn-primary:focus {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
}
.btn-outline-primary {
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-outline-primary:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
.btn-success {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-success:hover {
    background: var(--color-primary-light);
    border-color: var(--color-primary-light);
}
.btn-accent {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #082626;
    font-weight: 600;
}
.btn-accent:hover {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: #082626;
}

/* ---------- Login Page ---------- */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background:
        radial-gradient(circle at 15% 20%, rgba(245, 177, 51, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 85% 80%, rgba(245, 177, 51, 0.06) 0%, transparent 40%),
        linear-gradient(135deg, #0e3a3a 0%, #082626 100%);
    position: relative;
    overflow: hidden;
}
.login-wrapper::before,
.login-wrapper::after {
    content: '✦';
    position: absolute;
    color: var(--color-accent);
    opacity: 0.3;
    font-size: 1.5rem;
}
.login-wrapper::before {
    top: 15%;
    left: 10%;
    font-size: 2rem;
}
.login-wrapper::after {
    bottom: 15%;
    right: 10%;
}
.login-card {
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
    border-radius: 1.25rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
    border: none;
}
.login-card .bi-safe2-fill {
    color: var(--color-primary) !important;
}

/* ---------- Forms ---------- */
.form-control:focus,
.form-select:focus {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 0.2rem rgba(14, 58, 58, 0.15);
}
.input-group-text {
    background: #f0f4f2;
    border-color: #dde4e0;
    color: var(--color-primary);
}

/* ---------- Badges ---------- */
.badge {
    font-weight: 500;
    padding: 0.4em 0.7em;
    border-radius: 0.4rem;
}
.badge.bg-success {
    background-color: var(--color-primary) !important;
}
.badge.bg-warning {
    background-color: var(--color-accent) !important;
    color: #082626 !important;
}
.badge.bg-info {
    background-color: var(--color-primary-light) !important;
    color: #fff !important;
}

/* ---------- Alerts ---------- */
.alert-success {
    background-color: #e6f2ee;
    border-color: #bcdccf;
    color: #0e3a3a;
}
.alert-info {
    background-color: #e8f0ee;
    border-color: #c4d6cf;
    color: #0e3a3a;
}

/* ---------- Misc ---------- */
a {
    color: var(--color-primary);
}
a:hover {
    color: var(--color-primary-light);
}
a.text-decoration-none:hover {
    text-decoration: underline !important;
}
code {
    color: var(--color-accent-dark);
    background: #f0ebe0;
    padding: 0.1em 0.4em;
    border-radius: 0.25rem;
}
footer {
    color: #6c7975 !important;
}

/* ---------- Page Heading ---------- */
main h4 {
    color: var(--color-primary);
    font-weight: 700;
}
main h4 .bi {
    color: var(--color-accent);
}

/* ---------- Brand / Footer ---------- */
.brand-divider {
    width: 40px;
    height: 3px;
    background: var(--color-accent);
    margin: 12px auto;
    border-radius: 2px;
}
.app-footer {
    border-top: 1px solid #e0e8e4;
    background: #fff;
    margin-top: 2rem;
}
.app-footer a {
    color: var(--color-primary);
    text-decoration: none;
}
.app-footer a:hover {
    color: var(--color-accent-dark);
}

/* ---------- DataTables integration ---------- */
table.dataTable thead tr.column-filters th {
    background: #fcfdfd;
    border-bottom: 2px solid #dde4e0;
    padding: 6px 8px;
    font-weight: 400;
}
table.dataTable thead tr.column-filters input,
table.dataTable thead tr.column-filters select {
    font-size: 0.8rem;
    padding: 0.15rem 0.4rem;
    height: auto;
    min-width: 60px;
}
table.dataTable thead tr.column-filters th:last-child {
    background: transparent;
}

.dt-container .dt-buttons .btn {
    border-radius: 0.375rem;
    margin-right: 0.25rem;
}
.dt-container .dt-search input {
    border-radius: 0.375rem;
    border: 1px solid #dde4e0;
    padding: 0.375rem 0.625rem;
    margin-left: 0.5rem;
}
.dt-container .dt-search input:focus {
    outline: none;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 0.2rem rgba(14, 58, 58, 0.15);
}
.dt-container .dt-length select {
    border-radius: 0.375rem;
    border: 1px solid #dde4e0;
    padding: 0.25rem 0.5rem;
}
.dt-container .dt-paging .page-link {
    color: var(--color-primary);
}
.dt-container .dt-paging .page-item.active .page-link {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}
table.dataTable thead .dt-orderable-asc,
table.dataTable thead .dt-orderable-desc {
    cursor: pointer;
}
table.dataTable thead th.dt-reorderable {
    cursor: move;
}
table.dataTable.colreorder-allowed thead th {
    cursor: grab;
}
.dtcr-dragging {
    background: var(--color-accent) !important;
    color: #fff !important;
    opacity: 0.85;
}
#statusQuickFilter .btn.active {
    color: #fff;
}
#statusQuickFilter .btn-outline-success.active { background: var(--color-primary); border-color: var(--color-primary); }
#statusQuickFilter .btn-outline-warning.active { background: var(--color-accent); border-color: var(--color-accent); color: #082626; }
#statusQuickFilter .btn-outline-danger.active { background: #e74a3b; border-color: #e74a3b; }
#statusQuickFilter .btn-outline-secondary.active { background: #6c757d; border-color: #6c757d; }
.dt-buttons {
    display: inline-flex;
    gap: 0.25rem;
}

/* ---------- Dropdown ---------- */
.dropdown-menu {
    border: none;
    box-shadow: 0 8px 24px var(--color-card-shadow);
    border-radius: 0.75rem;
}
.dropdown-item:hover {
    background: #f0f4f2;
    color: var(--color-primary);
}