/* ══════════════════════════════════════════════════════════════
   HKERP Design System — admin.css

   Philosophy: Calm, spacious, professional.
   Reference: Stripe Dashboard / Linear / Acelle Mail.

   Rules:
   - ALL colors through CSS custom properties
   - ALL font sizes through --hk-fs-* scale
   - Dark mode via [data-theme="dark"]
   - Bootstrap overrides via --bs-* variables (never !important)
   - Badges = pastel bg + dark text (never white-on-color)
   - Links = body text color, primary on hover (never blue)
   ══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ───────────────────────────────────────────── */
:root {
    /* ─ Brand ─ */
    --hk-primary: #2c6e49;
    --hk-primary-hover: #245a3b;
    --hk-primary-rgb: 44, 110, 73;
    --hk-primary-soft: #e8f5ee;

    /* ─ Layout ─ */
    --hk-sidebar-width: 260px;
    --hk-topbar-height: 56px;

    /* ─ Typography ─ */
    --hk-fs-xs: 0.6875rem;   /* 11px — uppercase labels, table headers */
    --hk-fs-sm: 0.8125rem;   /* 13px — secondary text, small labels */
    --hk-fs-base: 0.875rem;  /* 14px — body, table cells, inputs */
    --hk-fs-md: 1rem;        /* 16px — card titles, nav */
    --hk-fs-lg: 1.25rem;     /* 20px — page headings */
    --hk-fs-xl: 1.5rem;      /* 24px — stat values, hero */

    /* ─ Spacing ─ */
    --hk-space-xs: 0.25rem;
    --hk-space-sm: 0.5rem;
    --hk-space-md: 1rem;
    --hk-space-lg: 1.5rem;
    --hk-space-xl: 2rem;

    /* ─ Radius ─ */
    --hk-radius-sm: 0.375rem;
    --hk-radius-md: 0.5rem;
    --hk-radius-lg: 0.75rem;
    --hk-radius-full: 9999px;

    /* ─ Light Theme (default) ─ */
    --hk-bg: #f8f9fb;
    --hk-sidebar-bg: #1a1d21;
    --hk-sidebar-text: #a0aec0;
    --hk-sidebar-active: #ffffff;
    --hk-sidebar-active-bg: rgba(255,255,255,0.08);
    --hk-card-bg: #ffffff;
    --hk-text: #1a1a2e;
    --hk-text-secondary: #64748b;
    --hk-text-muted: #94a3b8;
    --hk-border: #e8ecf1;
    --hk-link: var(--hk-text);
    --hk-link-hover: var(--hk-primary);

    /* ─ Semantic ─ */
    --hk-success: #16a34a;
    --hk-danger: #dc2626;
    --hk-warning: #d97706;
    --hk-info: #2563eb;

    /* ─ Badge Palette (pastel bg + dark text) ─ */
    --hk-badge-success-bg: #dcfce7;
    --hk-badge-success-fg: #166534;
    --hk-badge-warning-bg: #fef3c7;
    --hk-badge-warning-fg: #92400e;
    --hk-badge-danger-bg: #fee2e2;
    --hk-badge-danger-fg: #991b1b;
    --hk-badge-info-bg: #dbeafe;
    --hk-badge-info-fg: #1e40af;
    --hk-badge-neutral-bg: #f1f5f9;
    --hk-badge-neutral-fg: #334155;
    --hk-badge-primary-bg: var(--hk-primary-soft);
    --hk-badge-primary-fg: #166534;

    /* ─ Form Controls ─ */
    --hk-input-bg: #ffffff;
    --hk-input-border: #d1d5db;
    --hk-input-text: var(--hk-text);
    --hk-input-placeholder: var(--hk-text-muted);
    --hk-input-focus-shadow: rgba(var(--hk-primary-rgb), 0.1);
}

/* ─ Dark Theme ─ */
[data-theme="dark"] {
    --hk-bg: #0f1117;
    --hk-sidebar-bg: #161922;
    --hk-card-bg: #1a1d28;
    --hk-text: #e2e8f0;
    --hk-text-secondary: #94a3b8;
    --hk-text-muted: #64748b;
    --hk-border: #2d3748;

    --hk-primary-soft: #1a3a2a;
    --hk-success: #4ade80;
    --hk-danger: #f87171;
    --hk-warning: #fbbf24;
    --hk-info: #60a5fa;

    --hk-badge-success-bg: #14532d;
    --hk-badge-success-fg: #bbf7d0;
    --hk-badge-warning-bg: #451a03;
    --hk-badge-warning-fg: #fde68a;
    --hk-badge-danger-bg: #450a0a;
    --hk-badge-danger-fg: #fecaca;
    --hk-badge-info-bg: #1e3a5f;
    --hk-badge-info-fg: #bfdbfe;
    --hk-badge-neutral-bg: #1e293b;
    --hk-badge-neutral-fg: #cbd5e1;
    --hk-badge-primary-bg: var(--hk-primary-soft);
    --hk-badge-primary-fg: #bbf7d0;

    --hk-input-bg: #1e2130;
    --hk-input-border: #374151;
    --hk-input-text: #e2e8f0;
    --hk-input-placeholder: #64748b;
    --hk-input-focus-shadow: rgba(var(--hk-primary-rgb), 0.2);
}

/* ── Reset & Base ────────────────────────────────────────────── */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: var(--hk-fs-base);
    background: var(--hk-bg);
    color: var(--hk-text);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Links: body text color, primary on hover — NEVER blue */
a {
    color: var(--hk-link);
    text-decoration: none;
    transition: color 0.15s;
}
a:hover {
    color: var(--hk-link-hover);
}

/* ── Bootstrap Variable Overrides ────────────────────────────── */

/* Buttons */
.btn-primary {
    --bs-btn-bg: var(--hk-primary);
    --bs-btn-border-color: var(--hk-primary);
    --bs-btn-hover-bg: var(--hk-primary-hover);
    --bs-btn-hover-border-color: var(--hk-primary-hover);
    --bs-btn-font-size: var(--hk-fs-base);
    border-radius: var(--hk-radius-sm);
}
.btn-outline-primary {
    --bs-btn-color: var(--hk-primary);
    --bs-btn-border-color: var(--hk-primary);
    --bs-btn-hover-bg: var(--hk-primary);
    --bs-btn-hover-border-color: var(--hk-primary);
    --bs-btn-font-size: var(--hk-fs-base);
    border-radius: var(--hk-radius-sm);
}
.btn-outline-secondary {
    --bs-btn-color: var(--hk-text-secondary);
    --bs-btn-border-color: var(--hk-border);
    --bs-btn-hover-bg: var(--hk-bg);
    --bs-btn-font-size: var(--hk-fs-base);
    border-radius: var(--hk-radius-sm);
}
.btn-outline-danger {
    border-radius: var(--hk-radius-sm);
}
.btn { border-radius: var(--hk-radius-sm); }

/* Cards */
.card {
    --bs-card-bg: var(--hk-card-bg);
    --bs-card-border-color: var(--hk-border);
    --bs-card-cap-bg: transparent;
    border-radius: var(--hk-radius-md);
    box-shadow: none;
}
.card-header {
    color: var(--hk-text);
    border-bottom-color: var(--hk-border);
    font-size: var(--hk-fs-base);
    font-weight: 600;
    padding: 0.875rem 1.25rem;
}

/* Tables */
.table {
    --bs-table-color: var(--hk-text);
    --bs-table-bg: transparent;
    --bs-table-hover-bg: rgba(var(--hk-primary-rgb), 0.025);
    --bs-table-border-color: var(--hk-border);
    font-size: var(--hk-fs-base);
    margin-bottom: 0;
}
.table thead th {
    font-size: var(--hk-fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--hk-text-secondary);
    font-weight: 600;
    border-bottom: 1px solid var(--hk-border);
    padding: 0.625rem 1rem;
    white-space: nowrap;
}
.table td {
    vertical-align: middle;
    padding: 0.625rem 1rem;
    border-bottom: 1px solid var(--hk-border);
}
.table > :not(caption) > * > * {
    border-bottom-width: 0;
}
.table > tbody > tr {
    border-bottom: 1px solid var(--hk-border);
}
.table > tbody > tr:last-child {
    border-bottom: none;
}
/* Table light header — transparent, not gray */
.table-light {
    --bs-table-bg: transparent;
    --bs-table-color: var(--hk-text-secondary);
}
[data-theme="dark"] .table-light {
    --bs-table-bg: transparent;
}
/* Table info row (totals) */
.table-info {
    --bs-table-bg: var(--hk-primary-soft);
    --bs-table-color: var(--hk-text);
}
[data-theme="dark"] .table-info {
    --bs-table-bg: rgba(var(--hk-primary-rgb), 0.1);
}

/* Forms */
.form-control, .form-select {
    background-color: var(--hk-input-bg);
    border-color: var(--hk-input-border);
    color: var(--hk-input-text);
    font-size: var(--hk-fs-base);
    border-radius: var(--hk-radius-sm);
}
.form-control::placeholder {
    color: var(--hk-input-placeholder);
}
.form-control:focus, .form-select:focus {
    background-color: var(--hk-input-bg);
    color: var(--hk-input-text);
    border-color: var(--hk-primary);
    box-shadow: 0 0 0 3px var(--hk-input-focus-shadow);
}
.form-label {
    font-size: var(--hk-fs-sm);
    font-weight: 500;
    color: var(--hk-text-secondary);
    margin-bottom: 0.375rem;
}
.form-text {
    font-size: var(--hk-fs-sm);
    color: var(--hk-text-muted);
}
.form-check-label {
    font-size: var(--hk-fs-base);
}

/* Dropdowns */
.dropdown-menu {
    background-color: var(--hk-card-bg);
    border-color: var(--hk-border);
    border-radius: var(--hk-radius-md);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    font-size: var(--hk-fs-base);
}
[data-theme="dark"] .dropdown-menu {
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.dropdown-item {
    color: var(--hk-text);
    font-size: var(--hk-fs-base);
    padding: 0.5rem 1rem;
}
.dropdown-item:hover, .dropdown-item:focus {
    background-color: var(--hk-bg);
    color: var(--hk-text);
}

/* Alerts */
.alert {
    border-radius: var(--hk-radius-md);
    font-size: var(--hk-fs-base);
    border: none;
}
.alert-success {
    background-color: var(--hk-badge-success-bg);
    color: var(--hk-badge-success-fg);
}
.alert-danger {
    background-color: var(--hk-badge-danger-bg);
    color: var(--hk-badge-danger-fg);
}
.alert-info {
    background-color: var(--hk-badge-info-bg);
    color: var(--hk-badge-info-fg);
}
.alert-warning {
    background-color: var(--hk-badge-warning-bg);
    color: var(--hk-badge-warning-fg);
}

/* Modals */
.modal-content {
    border-radius: var(--hk-radius-lg);
    border: 1px solid var(--hk-border);
    background-color: var(--hk-card-bg);
}
.modal-header {
    border-bottom-color: var(--hk-border);
    color: var(--hk-text);
}
.modal-footer {
    border-top-color: var(--hk-border);
}

/* Pagination */
.page-link {
    color: var(--hk-text);
    border-color: var(--hk-border);
    background-color: var(--hk-card-bg);
    font-size: var(--hk-fs-sm);
}
.page-link:hover {
    color: var(--hk-primary);
    background-color: var(--hk-bg);
    border-color: var(--hk-border);
}
.page-item.active .page-link {
    background-color: var(--hk-primary);
    border-color: var(--hk-primary);
}
[data-theme="dark"] .page-link {
    background-color: var(--hk-card-bg);
    border-color: var(--hk-border);
    color: var(--hk-text);
}

/* ── Badge System (pastel bg + dark text — NEVER white-on-color) ── */
.badge {
    font-size: var(--hk-fs-xs);
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0.25em 0.65em;
    border-radius: var(--hk-radius-full);
}

/* Override Bootstrap badge colors to pastel */
.bg-primary, .badge.bg-primary   { background-color: var(--hk-badge-primary-bg) !important; color: var(--hk-badge-primary-fg) !important; }
.bg-success, .badge.bg-success   { background-color: var(--hk-badge-success-bg) !important; color: var(--hk-badge-success-fg) !important; }
.bg-danger,  .badge.bg-danger    { background-color: var(--hk-badge-danger-bg)  !important; color: var(--hk-badge-danger-fg)  !important; }
.bg-warning, .badge.bg-warning   { background-color: var(--hk-badge-warning-bg) !important; color: var(--hk-badge-warning-fg) !important; }
.bg-info,    .badge.bg-info      { background-color: var(--hk-badge-info-bg)    !important; color: var(--hk-badge-info-fg)    !important; }
.bg-secondary, .badge.bg-secondary { background-color: var(--hk-badge-neutral-bg) !important; color: var(--hk-badge-neutral-fg) !important; }
.bg-light    { background-color: var(--hk-badge-neutral-bg) !important; color: var(--hk-badge-neutral-fg) !important; }

/* Attendance-specific badges */
.badge-on_time { background: var(--hk-badge-success-bg); color: var(--hk-badge-success-fg); }
.badge-late    { background: var(--hk-badge-warning-bg); color: var(--hk-badge-warning-fg); }
.badge-absent  { background: var(--hk-badge-danger-bg);  color: var(--hk-badge-danger-fg); }
.badge-holiday { background: var(--hk-badge-neutral-bg); color: var(--hk-badge-neutral-fg); }
.badge-pending { background: var(--hk-badge-neutral-bg); color: var(--hk-badge-neutral-fg); }

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--hk-sidebar-width);
    height: 100vh;
    background: var(--hk-sidebar-bg);
    color: var(--hk-sidebar-text);
    z-index: 1040;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.sidebar-brand {
    padding: var(--hk-space-md) 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    min-height: var(--hk-topbar-height);
}
.sidebar-brand img { height: 32px; width: auto; }
.sidebar-brand span { font-weight: 700; font-size: var(--hk-fs-md); color: #fff; }

.sidebar-nav { padding: var(--hk-space-sm) 0; flex: 1; }

.sidebar-heading {
    font-size: var(--hk-fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: var(--hk-space-md) 1.25rem 0.4rem;
    color: rgba(255,255,255,0.3);
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1.25rem;
    color: var(--hk-sidebar-text);
    text-decoration: none;
    font-size: var(--hk-fs-base);
    transition: all 0.15s;
    border-left: 3px solid transparent;
}
.sidebar-link:hover {
    color: var(--hk-sidebar-active);
    background: var(--hk-sidebar-active-bg);
}
.sidebar-link.active {
    color: var(--hk-sidebar-active);
    background: var(--hk-sidebar-active-bg);
    border-left-color: var(--hk-primary);
}
.sidebar-link i { width: 20px; text-align: center; font-size: var(--hk-fs-md); }

/* Coming soon links */
.sidebar-link.sidebar-soon {
    opacity: 0.35;
    cursor: default;
    pointer-events: none;
}
.sidebar-badge-soon {
    margin-left: auto;
    font-size: var(--hk-fs-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.1rem 0.4rem;
    border-radius: var(--hk-radius-sm);
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.3);
    font-weight: 600;
}

/* ── Main Content ────────────────────────────────────────────── */
.main-content {
    margin-left: var(--hk-sidebar-width);
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.topbar {
    height: var(--hk-topbar-height);
    background: var(--hk-card-bg);
    border-bottom: 1px solid var(--hk-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--hk-space-lg);
    position: sticky;
    top: 0;
    z-index: 1030;
}
.topbar h6 {
    font-size: var(--hk-fs-sm);
    color: var(--hk-text-secondary);
    font-weight: 500;
}

.content-wrapper {
    padding: var(--hk-space-lg);
    max-width: 1400px;
}

/* ── Stat Cards ──────────────────────────────────────────────── */
.stat-card {
    padding: 1.25rem;
    border-radius: var(--hk-radius-md);
    background: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
}
.stat-card .stat-value {
    font-size: var(--hk-fs-xl);
    font-weight: 700;
    line-height: 1.2;
}
.stat-card .stat-label {
    font-size: var(--hk-fs-xs);
    color: var(--hk-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.25rem;
}

/* ── Semantic Text ───────────────────────────────────────────── */
.text-negative { color: var(--hk-danger); font-weight: 600; }
.text-positive { color: var(--hk-success); font-weight: 600; }

/* Override Bootstrap text utilities for dark mode */
.text-muted { color: var(--hk-text-muted) !important; }
.text-secondary { color: var(--hk-text-secondary) !important; }
.text-success { color: var(--hk-success) !important; }
.text-danger { color: var(--hk-danger) !important; }
.text-warning { color: var(--hk-warning) !important; }

/* Small text consistent sizing */
.small, small { font-size: var(--hk-fs-sm); }

/* ── Mobile ──────────────────────────────────────────────────── */
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--hk-fs-lg);
    color: var(--hk-text);
    cursor: pointer;
}
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 1035;
}

@media (max-width: 991.98px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.show { transform: translateX(0); }
    .sidebar-overlay.show { display: block; }
    .main-content { margin-left: 0; }
    .sidebar-toggle { display: inline-block; }
    .content-wrapper { padding: var(--hk-space-md); }
}

/* ── Theme Toggle ────────────────────────────────────────────── */
.theme-toggle {
    background: none;
    border: 1px solid var(--hk-border);
    border-radius: var(--hk-radius-sm);
    padding: 0.3rem 0.6rem;
    color: var(--hk-text-muted);
    cursor: pointer;
    font-size: var(--hk-fs-md);
    transition: all 0.15s;
}
.theme-toggle:hover {
    color: var(--hk-text);
    border-color: var(--hk-text-secondary);
}

/* ── Login Page ──────────────────────────────────────────────── */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--hk-bg);
}
.login-card {
    width: 100%;
    max-width: 420px;
    padding: var(--hk-space-xl);
    background: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
    border-radius: var(--hk-radius-lg);
}
.login-card .logo {
    height: 48px;
    margin-bottom: var(--hk-space-lg);
}

/* ── Autocomplete Component ──────────────────────────────────── */
.autocomplete-container {
    position: relative;
}
.autocomplete-dropdown {
    position: fixed;
    z-index: 1070;
    max-height: 250px;
    overflow-y: auto;
    background: var(--hk-card-bg);
    border: 1px solid var(--hk-border);
    border-top: none;
    border-radius: 0 0 var(--hk-radius-sm) var(--hk-radius-sm);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
[data-theme="dark"] .autocomplete-dropdown {
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.autocomplete-item {
    padding: 0.45rem 0.75rem;
    cursor: pointer;
    font-size: var(--hk-fs-base);
    color: var(--hk-text);
    transition: background 0.1s;
}
.autocomplete-item:hover,
.autocomplete-item.active {
    background: var(--hk-primary-soft);
}
.autocomplete-empty {
    padding: 0.6rem 0.75rem;
    font-size: var(--hk-fs-sm);
    color: var(--hk-text-muted);
    font-style: italic;
}
.autocomplete-selected {
    display: flex;
    align-items: center;
    padding: 0.3rem 0.6rem;
    background: var(--hk-input-bg);
    border: 1px solid var(--hk-input-border);
    border-radius: var(--hk-radius-sm);
    font-size: var(--hk-fs-base);
    color: var(--hk-input-text);
    min-height: calc(1.5em + 0.5rem + 2px);
}
.autocomplete-selected-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Utility Helpers ─────────────────────────────────────────── */

/* Page heading — consistent across all pages */
h4.fw-bold {
    font-size: var(--hk-fs-lg);
    color: var(--hk-text);
}

/* Back / breadcrumb links */
.btn-sm {
    font-size: var(--hk-fs-sm);
    border-radius: var(--hk-radius-sm);
}

/* Badge in sidebar (pending counts) */
.sidebar-link .badge {
    font-size: var(--hk-fs-xs);
}