:root {
    --brand-primary: #16a34a;
    --brand-primary-hover: #15803d;
    --brand-primary-soft: #dcfce7;
    --brand-primary-softer: #f0fdf4;
    --ink: #0f172a;
    --ink-muted: #64748b;
    --ink-subtle: #94a3b8;
    --surface: #ffffff;
    --surface-alt: #f8fafc;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --danger: #dc2626;
    --warning: #f59e0b;
    --info: #0ea5e9;
    --success: #16a34a;
    --radius: 0.625rem; /* 10px */
    --radius-lg: 0.875rem; /* 14px */
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, .06);
    --sidebar-w: 16.25rem; /* 260px */
    --header-h: 4rem; /* 64px */
}

* { box-sizing: border-box; }

html, body {
    font-family: 'Instrument Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--surface-alt);
    font-size: 0.875rem; /* 14px */
    line-height: 1.55;
    margin: 0;
}

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

.brand-text { color: var(--brand-primary); font-weight: 600; }

/* ------ Buttons ------ */
.btn {
    border-radius: var(--radius);
    font-weight: 500;
    transition: all .15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    line-height: 1.2;
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    border-width: 1px;
}
.btn:focus { outline: 0; }
.btn-sm { border-radius: 0.5rem; padding: 0.375rem 0.625rem; font-size: 0.8125rem; min-height: 2.125rem; }
.btn-lg { border-radius: 0.875rem; padding: 0.625rem 1rem; font-size: 0.9375rem; min-height: 2.75rem; }

/* Consistent control sizing */
.btn, .form-control, .form-select, .custom-select, select.form-control {
    min-height: 2.5rem;
}

/* Bootstrap compatibility: full-width buttons */
.btn-block {
    width: 100%;
    display: flex;
}
.btn-primary {
    background: var(--brand-primary);
    border-color: var(--brand-primary);
    color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
    background: var(--brand-primary-hover);
    border-color: var(--brand-primary-hover);
    box-shadow: 0 0 0 3px rgba(22, 163, 74, .2);
}
.btn-outline-primary { color: var(--brand-primary); border-color: var(--brand-primary); }
.btn-outline-primary:hover { background: var(--brand-primary); color: #fff; }

.btn[data-loading="true"] { pointer-events: none; opacity: .75; }
.btn[data-loading="true"]::after {
    content: '';
    display: inline-block;
    width: 0.75rem;
    height: 0.75rem;
    margin-left: 0.5rem;
    border: 0.125rem solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin .7s linear infinite; vertical-align: -2px;
}
@keyframes spin { to { transform: rotate(360deg); } }

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

.app-sidebar {
    width: var(--sidebar-w);
    background: var(--surface);
    border-right: 1px solid var(--border);
    position: fixed; top: 0; bottom: 0; left: 0; z-index: 50;
    overflow-y: auto;
    transition: transform .2s ease;
}
.app-sidebar-header {
    height: var(--header-h);
    display: flex; align-items: center; justify-content: space-between; padding: 0 1.25rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600; color: var(--brand-primary); font-size: 1.0625rem;
}
.app-sidebar-header .sidebar-brand { display: inline-flex; align-items: center; min-width: 0; }
.app-sidebar-header .tenant-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.app-sidebar-header .sidebar-toggle--sidebar {
    padding: 0.375rem 0.5rem;
    min-height: 2.125rem;
    border-radius: 0.625rem;
}
.app-sidebar-header .logo-dot {
    width: 1.75rem; height: 1.75rem; border-radius: 0.5rem;
    background: var(--brand-primary); color: #fff; font-weight: 700;
    display: inline-flex; align-items: center; justify-content: center;
    margin-right: 0.625rem; font-size: 0.875rem;
}

.app-sidebar nav { padding: 0.875rem 0.625rem; }
.app-sidebar .nav-group-label {
    font-size: 0.6875rem; text-transform: uppercase; letter-spacing: .08em;
    color: var(--ink-subtle); padding: 0.875rem 0.75rem 0.375rem;
}
.app-sidebar .nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 0.5625rem 0.75rem; border-radius: 0.5rem; color: var(--ink); font-weight: 500;
}
.app-sidebar .nav-link:hover { background: var(--surface-alt); text-decoration: none; }
.app-sidebar .nav-link.active {
    background: var(--brand-primary-soft); color: var(--brand-primary);
}
.app-sidebar .nav-link .icon {
    width: 1.125rem; height: 1.125rem; flex: 0 0 1.125rem; stroke: currentColor;
}

.app-main {
    flex: 1 1 auto;
    margin-left: var(--sidebar-w);
    min-width: 0;
}

.app-header {
    height: var(--header-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 20;
    display: flex; align-items: center; padding: 0 1.5rem; gap: 1rem;
}
.app-header .sidebar-toggle { display: inline-flex; }
.app-header .breadcrumbs { color: var(--ink-muted); font-size: 0.8125rem; }
.app-header .breadcrumbs .sep { margin: 0 0.375rem; color: var(--ink-subtle); }
.app-header .breadcrumbs .current { color: var(--ink); font-weight: 600; }
.app-header .header-spacer { flex: 1; }
.app-header .profile-dropdown .avatar {
    width: 2rem; height: 2rem; border-radius: 50%;
    background: var(--brand-primary-soft); color: var(--brand-primary);
    display: inline-flex; align-items: center; justify-content: center; font-weight: 600;
}
.app-header .dropdown-menu { border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-md); }

.app-content { padding: 1.5rem; }

/* ------ Cards / Tables ------ */
.card { border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.card-header { background: transparent; border-bottom: 1px solid var(--border); font-weight: 600; padding: 0.875rem 1.125rem; }
.card-body { padding: 1.125rem; }

.kpi-card { padding: 1.125rem; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.kpi-card .label { color: var(--ink-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
.kpi-card .value { font-size: 1.75rem; font-weight: 600; margin-top: 0.25rem; color: var(--ink); }
.kpi-card .delta { color: var(--brand-primary); font-size: 12px; margin-top: 2px; }

.table { background: var(--surface); }
.table thead th {
    background: var(--surface-alt);
    color: var(--ink-muted);
    font-size: 12px; text-transform: uppercase; letter-spacing: .04em;
    font-weight: 600; border-bottom: 1px solid var(--border);
}
.table td, .table th { vertical-align: middle; border-top: 1px solid var(--border); padding: 0.75rem 0.875rem; }
.table tbody tr:hover { background: var(--surface-alt); }
.table .actions-col { text-align: right; white-space: nowrap; }

.badge { border-radius: 999px; padding: 4px 10px; font-weight: 500; font-size: 11px; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info    { background: #e0f2fe; color: #075985; }
.badge-secondary { background: #e2e8f0; color: #475569; }

/* ------ Forms ------ */
.form-control, .form-select, .custom-select, select.form-control {
    border-radius: 8px; border: 1px solid var(--border-strong);
    padding: 0.5625rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.25;
}

/* Toolbar alignment helpers (Bootstrap utilities vary) */
.crud-toolbar .search-box {
    align-items: center;
    gap: 0.5rem;
    flex: 0 1 28rem;
}
.crud-toolbar .search-box .form-control {
    flex: 1 1 auto;
    min-width: 14rem;
    max-width: 22rem;
    height: 2.5rem;
}
.crud-toolbar .search-box .btn {
    flex: 0 0 auto;
    white-space: nowrap;
    height: 2.5rem;
    min-width: 5.5rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

/* Avoid Bootstrap margin utility fighting flex gap */
.crud-toolbar .search-box .ml-2 { margin-left: 0 !important; }

/* Filters row (branch/department/status) spacing + alignment */
.crud-toolbar > .d-flex.align-items-center.flex-wrap {
    gap: 0.5rem;
}
.crud-toolbar > .d-flex.align-items-center.flex-wrap .form-control {
    margin-left: 0 !important; /* override ml-2 */
    width: auto;
}
.form-control:focus, .form-select:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(22, 163, 74, .15);
}
label { font-weight: 500; color: var(--ink); margin-bottom: 0.375rem; }
.form-group { margin-bottom: 1rem; }
.required-marker { color: var(--danger); margin-left: 3px; }
.form-text.error { color: var(--danger); font-size: 0.75rem; margin-top: 0.25rem; }

/* ------ Toolbar ------ */
.page-toolbar {
    display: flex; align-items: center; gap: 12px;
    flex-wrap: wrap; margin-bottom: 1.125rem;
}
.page-toolbar .page-title { font-size: 1.375rem; font-weight: 600; margin: 0; }
.page-toolbar .page-subtitle { color: var(--ink-muted); margin: 0.125rem 0 0; font-size: 0.8125rem; }
.page-toolbar .spacer { flex: 1; }

.crud-toolbar {
    display: flex; gap: 10px; flex-wrap: wrap;
    padding: 0.875rem 1rem; border: 1px solid var(--border);
    border-radius: var(--radius-lg); background: var(--surface);
    margin-bottom: 0.875rem;
}
.crud-toolbar .search-box { flex: 1 1 240px; min-width: 200px; }
.crud-toolbar .view-toggle .btn.active { background: var(--brand-primary); color: #fff; }

/* ------ Empty state ------ */
.empty-state {
    text-align: center; padding: 3.75rem 1.5rem;
    border: 1px dashed var(--border-strong); border-radius: var(--radius-lg);
    background: var(--surface); color: var(--ink-muted);
}
.empty-state .icon { width: 2.625rem; height: 2.625rem; color: var(--ink-subtle); margin-bottom: 0.75rem; }
.empty-state h4 { color: var(--ink); margin-bottom: 6px; }

/* ------ Auth ------ */
.auth-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--brand-primary-softer) 0%, #fff 100%);
    padding: 1.5rem;
}
.auth-shell .alert {
    width: 100%;
    max-width: 26.25rem;
    margin: 0;
    border-radius: 0.875rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0.875rem;
}
.auth-shell .alert-success { background: #f0fdf4; color: #166534; border-color: #bbf7d0; }
.auth-shell .alert-danger  { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.auth-shell .alert-info    { background: #eff6ff; color: #1e3a8a; border-color: #bfdbfe; }
.auth-card {
    background: #fff; border: 1px solid var(--border); border-radius: 16px;
    box-shadow: var(--shadow-md); padding: 2rem; width: 100%; max-width: 26.25rem;
}
.auth-card .logo-mark {
    width: 3rem; height: 3rem; border-radius: 0.75rem;
    background: var(--brand-primary); color: #fff; font-weight: 700;
    display: inline-flex; align-items: center; justify-content: center; font-size: 1.375rem;
}
.auth-card h1 { font-size: 1.375rem; margin: 1rem 0 0.25rem; }
.auth-card .tagline { color: var(--ink-muted); margin-bottom: 22px; font-size: 13px; }

/* ------ Toasts ------ */
.toast-stack {
    position: fixed; top: 1.125rem; right: 1.125rem; z-index: 1080;
    display: flex; flex-direction: column; gap: 10px;
}
.app-toast {
    background: #fff; border: 1px solid var(--border); border-radius: 10px;
    padding: 0.75rem 0.875rem; box-shadow: var(--shadow-md);
    display: flex; align-items: flex-start; gap: 10px; min-width: 260px; max-width: 380px;
    border-left-width: 4px;
}
.app-toast.success { border-left-color: var(--success); }
.app-toast.error   { border-left-color: var(--danger); }
.app-toast.info    { border-left-color: var(--info); }
.app-toast.warning { border-left-color: var(--warning); }
.app-toast .msg { flex: 1; font-size: 13px; }
.app-toast .close-btn { border: 0; background: transparent; color: var(--ink-subtle); cursor: pointer; font-size: 16px; }

/* ------ Skeleton ------ */
.skeleton {
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 37%, #f1f5f9 63%);
    background-size: 400% 100%; animation: shimmer 1.2s infinite; border-radius: 6px;
}
@keyframes shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }

/* ------ Pagination ------ */
.pagination { margin: 0.875rem 0 0; gap: 0.25rem; }
.pagination .page-item .page-link {
    border-radius: 8px; color: var(--ink); border: 1px solid var(--border);
}
.pagination .page-item.active .page-link {
    background: var(--brand-primary); border-color: var(--brand-primary); color: #fff;
}
.pagination .page-item.disabled .page-link { color: var(--ink-subtle); }

/* ------ Attendance quick card ------ */
.clock-card {
    background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-primary-hover) 100%);
    color: #fff; border-radius: var(--radius-lg); padding: 1.75rem;
}
.clock-card .time { font-size: 2.25rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.clock-card .date { opacity: .9; }
.clock-card .btn-light { color: var(--brand-primary); font-weight: 600; }
.clock-card .btn-light:hover { background: #fff; }

/* ------ Tenant paywall pricing modal: align CTAs ------ */
.tenant-pricing-modal .card-body {
    display: flex;
    flex-direction: column;
}
.tenant-pricing-modal form { margin-top: auto; }
.tenant-pricing-modal .card-body > a.btn.btn-block { margin-top: auto; }

/* ------ Responsive ------ */
@media (max-width: 992px) {
    .app-sidebar { transform: translateX(-100%); }
    .app-sidebar.open { transform: translateX(0); box-shadow: 0 0 30px rgba(15,23,42,.2); }
    .app-main { margin-left: 0; }
    .app-header .sidebar-toggle { display: inline-flex; }
    body.sidebar-open { overflow: hidden; }
    /* Backdrop only for tenant pages (avoid blocking /login on mobile) */
    body.sidebar-open .app-shell::after {
        content: ''; position: fixed; inset: 0; background: rgba(15,23,42,.35); z-index: 40;
    }
}
@media (max-width: 576px) {
    .app-content { padding: 1rem; }
    .table { font-size: 13px; }
    .table td, .table th { padding: 10px; }
    .page-toolbar .page-title { font-size: 18px; }
}