/* ================================================================
   style.css — OfficeDMS
   สำนักกรรมาธิการสอง — Design System v1.0
   ================================================================ */

/* ── CSS Variables ─────────────────────────────────────────────── */
:root {
    --color-primary:          #1B4272;
    --color-primary-dark:     #132f55;
    --color-primary-light:    #2c567f;
    --color-accent:           #2e7d32;
    --color-accent-hover:     #1b5e20;
    --color-danger:           #c62828;
    --color-warning:          #f57c00;
    --color-bg:               #f0f4f8;
    --color-card:             #ffffff;
    --color-border:           #dee2e6;
    --color-text:             #2c3e50;
    --color-text-muted:       #6c7a89;
    --color-sidebar-text:     rgba(255,255,255,0.85);
    --navbar-height:          56px;
    --sidebar-width:          250px;
    --radius:                 8px;
    --shadow-sm:              0 1px 4px rgba(0,0,0,0.07);
    --shadow:                 0 2px 8px rgba(0,0,0,0.10);
    --transition:             0.22s ease;
}

/* ── Base ──────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: 'Sarabun', sans-serif;
    font-size: 15px;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-bg);
    margin: 0;
}

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

h1,h2,h3,h4,h5,h6 { font-weight: 600; color: var(--color-text); }

/* ── Navbar ────────────────────────────────────────────────────── */
.navbar-main {
    background: var(--color-primary);
    height: var(--navbar-height);
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1040;
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
    padding: 0 1rem;
}

.navbar-main .navbar-brand {
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    display: flex; align-items: center;
}
.navbar-main .navbar-brand:hover { color: rgba(255,255,255,0.9); }

.brand-text { letter-spacing: 0.02em; }

#sidebarToggle {
    background: none;
    border: none;
    color: #fff;
    opacity: 0.85;
    padding: 6px;
    transition: opacity var(--transition);
}
#sidebarToggle:hover { opacity: 1; }

/* ── Sidebar ───────────────────────────────────────────────────── */
#sidebar {
    background: #1a3c5e;
    width: var(--sidebar-width);
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    bottom: 0;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1030;
    transition: transform var(--transition);
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.15) transparent;
}

#sidebar::-webkit-scrollbar { width: 4px; }
#sidebar::-webkit-scrollbar-track { background: transparent; }
#sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }

.sidebar-header {
    padding: 14px 20px 8px;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    margin-bottom: 4px;
}

.sidebar-menu {
    list-style: none;
    padding: 8px 0;
    margin: 0;
}

.sidebar-menu li > a {
    display: flex;
    align-items: center;
    padding: 10px 18px;
    color: var(--color-sidebar-text);
    font-size: 0.9rem;
    font-weight: 400;
    border-left: 3px solid transparent;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
    gap: 10px;
    white-space: nowrap;
}

.sidebar-menu li > a i:first-child { width: 18px; text-align: center; flex-shrink: 0; }

.sidebar-menu li > a:hover {
    background: rgba(255,255,255,0.07);
    border-left-color: rgba(255,255,255,0.3);
    color: #fff;
}

.sidebar-menu li.active > a {
    background: rgba(46,125,50,0.22);
    border-left-color: var(--color-accent);
    color: #fff;
    font-weight: 500;
}

/* Submenu */
.sidebar-menu .submenu {
    list-style: none;
    padding: 0;
    margin: 0;
    overflow: hidden;
    max-height: 0;
    transition: max-height 0.3s ease;
    background: rgba(0,0,0,0.12);
}

.sidebar-menu li.open .submenu { max-height: 300px; }

.sidebar-menu .submenu li > a {
    padding: 8px 18px 8px 44px;
    font-size: 0.855rem;
    border-left: none;
    color: rgba(255,255,255,0.7);
}

.sidebar-menu .submenu li > a:hover,
.sidebar-menu .submenu li.active > a {
    background: rgba(255,255,255,0.07);
    color: #fff;
    border-left: none;
}

.submenu-arrow {
    margin-left: auto !important;
    font-size: 0.75rem;
    transition: transform 0.25s;
    color: rgba(255,255,255,0.4);
}
.sidebar-menu li.open > a .submenu-arrow { transform: rotate(90deg); }

/* ── Overlay (mobile) ──────────────────────────────────────────── */
#sidebarOverlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1029;
}
#sidebarOverlay.show { display: block; }

/* ── Main wrapper ──────────────────────────────────────────────── */
.main-wrapper {
    margin-left: var(--sidebar-width);
    padding-top: var(--navbar-height);
    min-height: 100vh;
    transition: margin-left var(--transition);
}

.main-content { min-height: calc(100vh - var(--navbar-height)); }

/* Content header */
.content-header {
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    display: flex;
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
}

.content-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--color-primary);
    margin: 0;
}

.breadcrumb { font-size: 0.82rem; }
.breadcrumb-item + .breadcrumb-item::before { color: var(--color-text-muted); }
.breadcrumb-item a { color: var(--color-primary); }

/* Content body */
.content-body { padding: 22px 24px; }

/* ── Cards ─────────────────────────────────────────────────────── */
.card {
    border: none;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.card-header {
    background: #f8f9fb;
    border-bottom: 1px solid var(--color-border);
    border-radius: var(--radius) var(--radius) 0 0 !important;
    padding: 13px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.95rem;
}

.card-header i { color: var(--color-primary); }
.card-body { padding: 20px; }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn { border-radius: 6px; font-family: 'Sarabun', sans-serif; font-size: 0.9rem; }

.btn-primary {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover, .btn-primary:focus {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
}

.btn-success {
    background: var(--color-accent);
    border-color: var(--color-accent);
}
.btn-success:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

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

.btn-add-person {
    background: var(--color-warning);
    border-color: var(--color-warning);
    color: #fff;
}
.btn-add-person:hover { background: #e65100; border-color: #e65100; color: #fff; }

/* ── Forms ─────────────────────────────────────────────────────── */
.form-control, .form-select {
    border-color: #ced4da;
    border-radius: 6px;
    font-family: 'Sarabun', sans-serif;
    font-size: 0.9rem;
    padding: 7px 12px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(27,66,114,0.18);
}

.form-label { font-weight: 500; margin-bottom: 5px; font-size: 0.9rem; }
.form-label .text-danger { font-size: 0.8rem; }

textarea.form-control { min-height: 90px; }

/* ── Tables ─────────────────────────────────────────────────────── */
.table { font-size: 0.88rem; }
.table thead th {
    background: var(--color-primary);
    color: #fff;
    font-weight: 500;
    border: none;
    padding: 10px 14px;
    vertical-align: middle;
    white-space: nowrap;
}

.table td { vertical-align: middle; padding: 9px 14px; }
.table-striped tbody tr:nth-of-type(odd) td { background: #f8f9fb; }
.table tbody tr:hover td { background: rgba(27,66,114,0.04); }

/* DataTables overrides */
div.dataTables_wrapper div.dataTables_filter label,
div.dataTables_wrapper div.dataTables_length label {
    font-family: 'Sarabun', sans-serif;
    font-size: 0.88rem;
}

div.dataTables_wrapper div.dataTables_length select.form-select,
div.dataTables_wrapper div.dataTables_length select.form-select-sm {
    min-width: 4.75rem;
    padding-right: 2.3rem;
    background-position: right 0.65rem center;
    background-size: 16px 12px;
}

div.dataTables_wrapper div.dataTables_info { font-size: 0.83rem; color: var(--color-text-muted); }

/* ── Badges: Document types ─────────────────────────────────────── */
.badge { font-family: 'Sarabun', sans-serif; font-size: 0.78rem; font-weight: 500; padding: 4px 10px; border-radius: 20px; }

.badge-type-1 { background: #1565C0; color: #fff; }   /* เชิญประชุม   — blue */
.badge-type-2 { background: #6A1B9A; color: #fff; }   /* อบรมสัมมนา  — purple */
.badge-type-3 { background: #00695C; color: #fff; }   /* กิจกรรมภายนอก — teal */
.badge-type-4 { background: #E65100; color: #fff; }   /* แบบสำรวจ    — orange */
.badge-type-5 { background: #455A64; color: #fff; }   /* รับส่งหนังสือ — slate */

/* ── Calendar ───────────────────────────────────────────────────── */
#calendar { background: #fff; border-radius: var(--radius); padding: 4px; }

.fc .fc-toolbar-title {
    font-size: 1.15rem !important;
    font-weight: 600;
    color: var(--color-primary);
    font-family: 'Sarabun', sans-serif;
}

.fc .fc-button {
    font-family: 'Sarabun', sans-serif;
    font-size: 0.82rem !important;
    padding: 5px 12px !important;
    border-radius: 6px !important;
}

.fc .fc-button-group {
    gap: 5px;
}
.fc .fc-button-group > .fc-button:not(:first-child) {
    margin-left: 0 !important;
    border-left-width: 1px !important;
    border-radius: 6px !important;
}

.fc .fc-button-primary {
    background: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
}
.fc .fc-button-primary:hover {
    background: var(--color-primary-dark) !important;
    border-color: var(--color-primary-dark) !important;
}
.fc .fc-button-primary:not(:disabled).fc-button-active,
.fc .fc-button-primary:not(:disabled):active {
    background: var(--color-primary-dark) !important;
    border-color: var(--color-primary-dark) !important;
}

.fc .fc-col-header-cell-cushion {
    font-family: 'Sarabun', sans-serif;
    font-weight: 600;
    color: var(--color-primary);
    font-size: 0.88rem;
}

.fc .fc-daygrid-day-number {
    font-family: 'Sarabun', sans-serif;
    font-size: 0.85rem;
    color: var(--color-text);
    padding: 4px 8px;
}

.fc .fc-daygrid-day:hover .fc-daygrid-day-frame { background: rgba(27,66,114,0.04); cursor: pointer; }

.fc-event {
    border-radius: 4px !important;
    border: none !important;
    padding: 2px 6px !important;
    font-size: 0.78rem !important;
    font-family: 'Sarabun', sans-serif !important;
    font-weight: 500 !important;
    cursor: pointer;
    margin-bottom: 2px !important;
}

.fc-event-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Calendar event tooltip ─────────────────────────────────────── */
.fc-event-tooltip .tooltip-inner {
    max-width: 320px;
    text-align: left;
    background: #1e293b;
    padding: 8px 12px;
    font-family: 'Sarabun', sans-serif;
    font-size: 0.83rem;
    line-height: 1.65;
}
.fc-event-tooltip.bs-tooltip-top    .tooltip-arrow::before { border-top-color:    #1e293b; }
.fc-event-tooltip.bs-tooltip-bottom .tooltip-arrow::before { border-bottom-color: #1e293b; }
.fc-event-tooltip.bs-tooltip-start  .tooltip-arrow::before { border-left-color:   #1e293b; }
.fc-event-tooltip.bs-tooltip-end    .tooltip-arrow::before { border-right-color:  #1e293b; }
.fc-tt-title  { font-weight: 600; color: #f1f5f9; margin-bottom: 4px; }
.fc-tt-body   { color: #cbd5e1; }
.fc-tt-label  { color: #94a3b8; font-size: 0.78rem; }

.fc .fc-today-button { background: var(--color-accent) !important; border-color: var(--color-accent) !important; }

/* ── Person search ───────────────────────────────────────────────── */
.person-search-wrapper { position: relative; }

.person-search-dropdown {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 6px 6px;
    max-height: 250px;
    overflow-y: auto;
    z-index: 1050;
    box-shadow: var(--shadow);
    display: none;
}

.person-search-dropdown .person-item {
    padding: 9px 14px;
    cursor: pointer;
    border-bottom: 1px solid #f0f0f0;
    transition: background var(--transition);
}
.person-search-dropdown .person-item:last-child { border-bottom: none; }
.person-search-dropdown .person-item:hover { background: #f0f4f8; }
.person-search-dropdown .person-item .person-name { font-weight: 500; font-size: 0.9rem; }
.person-search-dropdown .person-item .person-meta { font-size: 0.78rem; color: var(--color-text-muted); }

/* Person table in forms */
#personTable thead th { background: var(--color-primary); }
#personTable .btn-remove-person { color: var(--color-danger); background: none; border: none; padding: 2px 6px; }
#personTable .btn-remove-person:hover { color: #900; }

/* ── Edit mode selector ─────────────────────────────────────────── */
.edit-mode-selector .form-check {
    border: 2px solid var(--color-border);
    border-radius: 8px;
    padding: 12px 16px 12px 40px;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
}

.edit-mode-selector .form-check:hover { border-color: var(--color-primary-light); background: #f8f9fb; }
.edit-mode-selector .form-check-input:checked ~ .form-check-label { font-weight: 600; }
.edit-mode-selector .form-check.active { border-color: var(--color-primary); background: rgba(27,66,114,0.04); }

/* ── Loading overlay ─────────────────────────────────────────────── */
#loadingOverlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
#loadingOverlay.show { display: flex; }
.loading-spinner { text-align: center; }

/* ── Login page ─────────────────────────────────────────────────── */
body.login-page {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0d2a47 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
}

.login-card-header {
    background: var(--color-primary);
    padding: 28px 32px 24px;
    text-align: center;
    color: #fff;
}

.login-card-header .login-icon {
    font-size: 3rem;
    margin-bottom: 10px;
    opacity: 0.9;
}

.login-card-header h4 {
    color: #fff;
    font-size: 1.05rem;
    margin: 0;
    opacity: 0.95;
}

.login-card-header p { color: rgba(255,255,255,0.7); font-size: 0.85rem; margin: 4px 0 0; }

.login-card-body { padding: 28px 32px 32px; }

.login-card-body .form-control {
    padding: 10px 14px;
    font-size: 0.95rem;
}

.login-card-body .btn-login {
    background: var(--color-primary);
    border: none;
    color: #fff;
    width: 100%;
    padding: 11px;
    font-size: 1rem;
    border-radius: 6px;
    font-weight: 500;
    margin-top: 4px;
    transition: background var(--transition);
}
.login-card-body .btn-login:hover { background: var(--color-primary-dark); }

/* ── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 991.98px) {
    #sidebar {
        transform: translateX(-100%);
    }
    #sidebar.open {
        transform: translateX(0);
    }
    .main-wrapper {
        margin-left: 0;
    }
}

/* ── Misc ────────────────────────────────────────────────────────── */
.section-divider {
    border: none;
    border-top: 2px solid #e9ecef;
    margin: 24px 0;
}

.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--color-text-muted);
}
.empty-state i { font-size: 3rem; margin-bottom: 16px; opacity: 0.4; }
.empty-state p { font-size: 0.95rem; }

/* Search results */
.search-result-item { padding: 14px 18px; border-left: none; border-right: none; }
.search-result-item:first-child { border-top: none; }
.search-result-item:hover { background: var(--color-bg-alt, #f8f9fa); }
.search-result-item .fw-600 { font-weight: 600; }
.text-truncate-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Document view info grid */
.doc-detail-grid dt { color: var(--color-text-muted); font-weight: 500; font-size: 0.85rem; }
.doc-detail-grid dd { font-size: 0.92rem; margin-bottom: 8px; }

/* SweetAlert2 Thai font override */
.swal2-popup { font-family: 'Sarabun', sans-serif !important; }
.swal2-title, .swal2-html-container { font-family: 'Sarabun', sans-serif !important; }

/* Select2 Thai */
.select2-container .select2-selection { font-family: 'Sarabun', sans-serif; }

/* Flatpickr Thai */
.flatpickr-calendar { font-family: 'Sarabun', sans-serif; }

/* Import preview table */
#importPreviewTable { font-size: 0.82rem; }
#importPreviewTable thead th { background: var(--color-primary); }

/* History / change log accordion */
.change-log-item { border-left: 3px solid var(--color-accent); padding-left: 14px; margin-bottom: 14px; }
.change-log-item .log-date { font-size: 0.8rem; color: var(--color-text-muted); }
/* Extra-small button (Bootstrap 5 has no btn-xs) */
.btn-xs { padding: 0.15rem 0.4rem; font-size: 0.75rem; line-height: 1.4; }