/* =============================================================================
   HR System — Microsoft Access-Style UI
   Theme: Blue + Red
   ============================================================================= */

:root {
    --primary:        #1565C0;
    --primary-dark:   #0D47A1;
    --primary-light:  #1976D2;
    --primary-50:     #E3F2FD;
    --primary-100:    #BBDEFB;

    --accent:         #C62828;
    --accent-dark:    #B71C1C;
    --accent-light:   #D32F2F;
    --accent-50:      #FFEBEE;

    --bg:             #ECEFF4;
    --surface:        #FFFFFF;
    --surface-2:      #F5F7FA;
    --border:         #D7DEE8;
    --border-strong:  #B7C2D0;

    --text:           #1F2937;
    --text-muted:     #6B7280;
    --text-light:     #9CA3AF;

    --success:        #2E7D32;
    --warning:        #ED6C02;
    --info:           #0288D1;

    --topbar-h:       46px;
    --ribbon-h:       88px;
    --statusbar-h:    26px;
    --sidebar-w:      240px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,.06);
    --shadow:    0 2px 6px rgba(0,0,0,.08);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Sarabun', 'Segoe UI', 'Noto Sans Thai', Tahoma, sans-serif;
    font-size: 14px;
    color: var(--text);
    background: var(--bg);
}

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

/* ============== TOP BAR (เลียน Title Bar ของ Access) ============== */
.app-topbar {
    height: var(--topbar-h);
    background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 12px;
    box-shadow: var(--shadow);
    position: sticky; top: 0; z-index: 1030;
}
.app-topbar .brand {
    display: flex; align-items: center; gap: 8px;
    font-weight: 600; font-size: 15px;
    color: #fff;
}
.app-topbar .brand i { font-size: 20px; }
.app-topbar .brand .accent { color: #ffcdd2; }

.topbar-spacer { flex: 1; }

.topbar-user {
    display: flex; align-items: center; gap: 8px;
    color: #fff;
    background: rgba(255,255,255,.1);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 13px;
}
.topbar-user .avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--accent);
    color: #fff;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 12px;
}

.topbar-actions { display: flex; align-items: center; gap: 4px; }
.topbar-actions .btn-ghost {
    background: transparent;
    color: #fff;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}
.topbar-actions .btn-ghost:hover { background: rgba(255,255,255,.15); }

.btn-burger {
    background: transparent; color:#fff; border:none;
    width: 36px; height: 36px; border-radius: 4px;
    display: none; align-items:center; justify-content:center;
    cursor: pointer;
    font-size: 20px;
}
.btn-burger:hover { background: rgba(255,255,255,.15); }

/* ============== RIBBON (เลียน Ribbon ของ Office/Access) ============== */
.app-ribbon {
    background: linear-gradient(180deg, #FAFBFD 0%, #ECEFF4 100%);
    border-bottom: 1px solid var(--border-strong);
    padding: 6px 12px;
    display: flex;
    align-items: stretch;
    gap: 12px;
    overflow-x: auto;
    min-height: var(--ribbon-h);
    position: sticky; top: var(--topbar-h); z-index: 1020;
}
.ribbon-group {
    display: flex; flex-direction: column;
    border-right: 1px solid var(--border);
    padding-right: 12px;
    min-width: 0;
}
.ribbon-group:last-child { border-right: none; }
.ribbon-group .ribbon-buttons {
    display: flex; gap: 4px; flex: 1; align-items: flex-start;
    flex-wrap: wrap;
}
.ribbon-group .ribbon-label {
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.ribbon-btn {
    display: inline-flex; flex-direction: column;
    align-items: center; justify-content: flex-start;
    min-width: 56px; padding: 4px 6px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    color: var(--text);
    cursor: pointer;
    font-size: 12px;
    text-decoration: none;
}
.ribbon-btn i { font-size: 22px; margin-bottom: 2px; color: var(--primary); }
.ribbon-btn.danger i  { color: var(--accent); }
.ribbon-btn.success i { color: var(--success); }
.ribbon-btn.warn i    { color: var(--warning); }
.ribbon-btn:hover {
    background: var(--primary-50);
    border-color: var(--primary-100);
    color: var(--text);
    text-decoration: none;
}
.ribbon-btn.disabled, .ribbon-btn:disabled {
    color: var(--text-light); cursor: not-allowed; opacity: .5;
}

/* ============== MAIN LAYOUT ============== */
.app-body {
    display: flex;
    min-height: calc(100vh - var(--topbar-h) - var(--ribbon-h) - var(--statusbar-h));
}

/* ============== SIDEBAR (เลียน Navigation Pane) ============== */
.app-sidebar {
    width: var(--sidebar-w);
    background: var(--surface);
    border-right: 1px solid var(--border);
    flex-shrink: 0;
    overflow-y: auto;
    transition: transform .2s ease;
}
.sidebar-header {
    padding: 10px 12px;
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: .5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.sidebar-section {
    border-bottom: 1px solid var(--border);
}
.sidebar-section-title {
    background: var(--surface-2);
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-dark);
    text-transform: uppercase;
    letter-spacing: .8px;
    cursor: pointer;
    user-select: none;
    display: flex; justify-content: space-between; align-items: center;
}
.sidebar-section-title:hover { background: var(--primary-50); }
.sidebar-menu { list-style: none; padding: 4px 0; margin: 0; }
.sidebar-menu li a {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 14px 8px 18px;
    color: var(--text);
    font-size: 13px;
    border-left: 3px solid transparent;
    text-decoration: none;
}
.sidebar-menu li a i {
    color: var(--primary);
    width: 18px; text-align: center;
    font-size: 15px;
}
.sidebar-menu li a:hover {
    background: var(--primary-50);
    color: var(--primary-dark);
    text-decoration: none;
}
.sidebar-menu li a.active {
    background: var(--primary-50);
    border-left-color: var(--accent);
    color: var(--primary-dark);
    font-weight: 600;
}
.sidebar-menu li a .badge {
    margin-left: auto;
    background: var(--accent);
    color: #fff;
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 10px;
    font-weight: 700;
}

.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 1010;
}

/* ============== CONTENT AREA ============== */
.app-content {
    flex: 1;
    padding: 16px;
    overflow-x: auto;
    background: var(--bg);
}

.breadcrumbs {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 6px 12px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--text-muted);
    display: flex; align-items: center; gap: 6px;
    flex-wrap: wrap;
}
.breadcrumbs i { color: var(--primary); }
.breadcrumbs a { color: var(--primary); }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.card-header {
    background: linear-gradient(180deg, #FAFBFD 0%, #EEF1F5 100%);
    border-bottom: 1px solid var(--border);
    padding: 8px 14px;
    font-weight: 600;
    color: var(--primary-dark);
    display: flex; align-items: center; gap: 8px;
}
.card-header i { color: var(--primary); }
.card-body { padding: 14px; }

/* ============== STAT TILES ============== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
    margin-bottom: 12px;
}
.stat-tile {
    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: 4px;
    padding: 12px 14px;
    display: flex; align-items: center; gap: 12px;
    box-shadow: var(--shadow-sm);
}
.stat-tile.accent { border-left-color: var(--accent); }
.stat-tile.success { border-left-color: var(--success); }
.stat-tile.warning { border-left-color: var(--warning); }

.stat-tile .icon {
    width: 44px; height: 44px;
    border-radius: 6px;
    background: var(--primary-50);
    color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}
.stat-tile.accent  .icon { background: var(--accent-50);  color: var(--accent); }
.stat-tile.success .icon { background: #E8F5E9;          color: var(--success); }
.stat-tile.warning .icon { background: #FFF4E5;          color: var(--warning); }

.stat-tile .label  { font-size: 12px; color: var(--text-muted); }
.stat-tile .value  { font-size: 22px; font-weight: 700; color: var(--text); }

/* ============== TABLE (Datasheet style) ============== */
.datasheet {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    background: var(--surface);
}
.datasheet th, .datasheet td {
    padding: 7px 10px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-align: left;
}
.datasheet thead th {
    background: linear-gradient(180deg, #EEF1F5 0%, #DDE3EB 100%);
    color: var(--primary-dark);
    font-weight: 600;
    border-top: 1px solid var(--border-strong);
    border-bottom: 1px solid var(--border-strong);
    position: sticky; top: 0;
}
.datasheet tbody tr:hover { background: var(--primary-50); }
.datasheet tbody tr:nth-child(even) { background: #F9FAFC; }
.datasheet tbody tr:nth-child(even):hover { background: var(--primary-50); }

/* ============== STATUS BAR (Bottom) ============== */
.app-statusbar {
    height: var(--statusbar-h);
    background: linear-gradient(180deg, var(--primary-dark) 0%, #0A3D8C 100%);
    color: rgba(255,255,255,.9);
    font-size: 11px;
    display: flex; align-items: center;
    padding: 0 12px;
    gap: 16px;
    position: sticky; bottom: 0; z-index: 1000;
}
.app-statusbar .status-item {
    display: inline-flex; align-items: center; gap: 5px;
}
.app-statusbar .status-item i { font-size: 12px; }
.app-statusbar .spacer { flex: 1; }

/* ============== FORM ============== */
.form-row { margin-bottom: 12px; }
.form-row label {
    display: block; font-size: 12px; font-weight: 600;
    color: var(--text); margin-bottom: 4px;
}
.form-row label .required { color: var(--accent); margin-left: 2px; }
.form-control {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--border-strong);
    border-radius: 3px;
    font-size: 13px;
    font-family: inherit;
    background: #fff;
    color: var(--text);
    transition: border-color .15s;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(21,101,192,.15);
}

.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px;
    border: 1px solid transparent;
    border-radius: 3px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    text-decoration: none;
    transition: background .15s, box-shadow .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color:#fff; text-decoration:none; }
.btn-danger  { background: var(--accent); color: #fff; }
.btn-danger:hover  { background: var(--accent-dark); color:#fff; text-decoration:none; }
.btn-default { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-default:hover { background: var(--surface-2); }
.btn-link    { background: transparent; color: var(--primary); padding: 4px 8px; }

/* ============== ALERT ============== */
.alert {
    padding: 10px 14px;
    border-radius: 4px;
    margin-bottom: 12px;
    border: 1px solid;
    display: flex; align-items: center; gap: 8px;
    font-size: 13px;
}
.alert i { font-size: 18px; }
.alert-success { background: #E8F5E9; border-color: #A5D6A7; color: #1B5E20; }
.alert-danger  { background: var(--accent-50); border-color: #EF9A9A; color: var(--accent-dark); }
.alert-info    { background: var(--primary-50); border-color: var(--primary-100); color: var(--primary-dark); }
.alert-warning { background: #FFF4E5; border-color: #FFCC80; color: #E65100; }

/* ============== LOGIN PAGE ============== */
.auth-wrap {
    min-height: 100vh;
    background:
      linear-gradient(135deg, rgba(13,71,161,.92), rgba(198,40,40,.85)),
      radial-gradient(circle at 30% 20%, rgba(255,255,255,.2), transparent 60%);
    background-color: var(--primary-dark);
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
}
.auth-card {
    width: 100%; max-width: 400px;
    background: var(--surface);
    border-radius: 8px;
    box-shadow: 0 12px 40px rgba(0,0,0,.3);
    overflow: hidden;
}
.auth-card .auth-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff; padding: 24px 24px 18px;
    text-align: center;
    border-bottom: 4px solid var(--accent);
}
.auth-card .auth-header h1 {
    margin: 0; font-size: 20px; font-weight: 700;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.auth-card .auth-header h1 i { color: #ffcdd2; }
.auth-card .auth-header p {
    margin: 6px 0 0; font-size: 13px; opacity: .85;
}
.auth-card .auth-body { padding: 24px; }
.auth-card .btn-primary { width: 100%; justify-content: center; padding: 10px 14px; font-size: 14px; }

.input-icon-wrap { position: relative; }
.input-icon-wrap .form-control { padding-left: 36px; }
.input-icon-wrap > i {
    position: absolute; left: 12px; top: 50%;
    transform: translateY(-50%);
    color: var(--text-light); font-size: 16px;
}

/* ============== PLACEHOLDER MODULE PAGE ============== */
.placeholder-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 30px;
    border-radius: 6px;
    margin-bottom: 14px;
    display: flex; align-items: center; gap: 20px;
    border-left: 6px solid var(--accent);
}
.placeholder-hero .icon-circle {
    width: 70px; height: 70px;
    border-radius: 50%;
    background: rgba(255,255,255,.15);
    display: flex; align-items: center; justify-content: center;
    font-size: 36px; flex-shrink: 0;
}
.placeholder-hero h2 { margin: 0 0 4px; font-size: 22px; }
.placeholder-hero p  { margin: 0; opacity: .9; font-size: 14px; }
.placeholder-tag {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
}

/* ============== UTIL ============== */
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--accent); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-end { text-align: right; }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 4px; } .mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; }
.mb-0 { margin-bottom: 0; } .mb-1 { margin-bottom: 4px; } .mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; }

.row { display: flex; gap: 12px; flex-wrap: wrap; }
.col { flex: 1; min-width: 0; }

/* ============== RESPONSIVE: MOBILE ============== */
@media (max-width: 992px) {
    :root { --ribbon-h: 64px; }
    .ribbon-group .ribbon-label { display: none; }
    .ribbon-btn { min-width: 44px; padding: 4px; }
    .ribbon-btn i { font-size: 18px; }
    .ribbon-btn span { display: none; }
}

@media (max-width: 768px) {
    .btn-burger { display: inline-flex; }
    .app-sidebar {
        position: fixed; top: var(--topbar-h); left: 0;
        height: calc(100vh - var(--topbar-h));
        z-index: 1015;
        transform: translateX(-100%);
        box-shadow: 4px 0 20px rgba(0,0,0,.25);
    }
    .app-sidebar.is-open { transform: translateX(0); }
    .sidebar-backdrop.is-open { display: block; }
    .app-content { padding: 10px; }
    .topbar-user .name { display: none; }
    .placeholder-hero { padding: 20px; flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    :root { --ribbon-h: 56px; }
    .app-topbar .brand .name-en { display: none; }
    .app-statusbar .status-item.hide-sm { display: none; }
    .stats-grid { grid-template-columns: 1fr; }
}

/* ============== SCROLLBAR ============== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }
::-webkit-scrollbar-track { background: var(--surface-2); }