/* ============================================================
   NominaPro - Componentes UI
   Botones, Cards, Tablas, Formularios, Badges, Alertas, Modales
   ============================================================ */

/* ============================================================
   Forms
   ============================================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-label .required {
    color: var(--danger);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1.5px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
    line-height: var(--leading-normal);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:hover {
    border-color: var(--border-default);
}

.form-control:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-hint {
    font-size: var(--text-xs);
    color: var(--text-muted);
    margin-top: var(--space-1);
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8.825a.5.5 0 0 1-.354-.146l-4-4a.5.5 0 1 1 .708-.708L6 7.617l3.646-3.646a.5.5 0 1 1 .708.708l-4 4A.5.5 0 0 1 6 8.825z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-500);
    cursor: pointer;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-sm);
    font-weight: 600;
    font-family: var(--font-family);
    border-radius: var(--radius-md);
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    position: relative;
    overflow: hidden;
}

.btn:active {
    transform: scale(0.97);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-default);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary-400);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.35);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    color: white;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover {
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.35);
    transform: translateY(-1px);
}

/* Botón Excel Premium */
.btn-excel {
    background: linear-gradient(135deg, #107C41 0%, #0B5A2F 100%);
    color: #ffffff !important;
    border: 1px solid rgba(16, 124, 65, 0.4);
    box-shadow: 0 2px 8px rgba(16, 124, 65, 0.28);
    font-weight: 600;
}

.btn-excel:hover {
    background: linear-gradient(135deg, #13904c 0%, #0e6f3a 100%);
    box-shadow: 0 4px 14px rgba(16, 124, 65, 0.42);
    transform: translateY(-1px);
    color: #ffffff !important;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: none;
}

.btn-ghost:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
    width: 30px;
    height: 30px;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.card-header h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.card-body {
    padding: var(--space-6);
}

.card-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
}

/* --- Stat Cards (KPIs) --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-card.stat-primary::after { background: linear-gradient(90deg, var(--primary-400), var(--primary-600)); }
.stat-card.stat-success::after { background: linear-gradient(90deg, var(--accent-400), var(--accent-600)); }
.stat-card.stat-warning::after { background: linear-gradient(90deg, var(--warning), #ea580c); }
.stat-card.stat-info::after    { background: linear-gradient(90deg, var(--info), #2563eb); }
.stat-card.stat-danger::after  { background: linear-gradient(90deg, var(--danger), #be123c); }

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.stat-primary .stat-icon { background: var(--primary-50); color: var(--primary-600); }
.stat-success .stat-icon { background: var(--success-light); color: var(--success-dark); }
.stat-warning .stat-icon { background: var(--warning-light); color: var(--warning-dark); }
.stat-info .stat-icon    { background: var(--info-light); color: var(--info-dark); }
.stat-danger .stat-icon  { background: var(--danger-light); color: var(--danger-dark); }

[data-theme="dark"] .stat-primary .stat-icon { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
[data-theme="dark"] .stat-success .stat-icon { background: rgba(16, 185, 129, 0.15); color: #34d399; }
[data-theme="dark"] .stat-warning .stat-icon { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
[data-theme="dark"] .stat-info .stat-icon    { background: rgba(59, 130, 246, 0.15); color: #60a5fa; }
[data-theme="dark"] .stat-danger .stat-icon  { background: rgba(239, 68, 68, 0.15); color: #f87171; }

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.stat-label {
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}

/* ============================================================
   Nav Pills (Segmented Tabs)
   ============================================================ */
.nav-pills {
    display: inline-flex;
    background: var(--bg-surface-2);
    padding: 5px;
    border-radius: var(--radius-xl);
    gap: 4px;
    border: 1px solid var(--border-light);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.04);
}

.nav-pills .pill-item {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 7px 16px;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-pills .pill-item:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
}

.nav-pills .pill-item.active {
    background: var(--bg-surface);
    color: var(--primary-600);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .nav-pills .pill-item.active {
    background: var(--primary-600);
    color: #ffffff;
}

/* --- Worklogs Dynamic Multi-Row Entry --- */
.worklog-grid-header {
    display: grid;
    grid-template-columns: 2.2fr 1.1fr 1.1fr 1.3fr 1.6fr 40px;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background: var(--bg-surface-2);
    border-radius: var(--radius-md);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.worklog-entry-row {
    display: grid;
    grid-template-columns: 2.2fr 1.1fr 1.1fr 1.3fr 1.6fr 40px;
    gap: var(--space-3);
    align-items: center;
    margin-bottom: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.worklog-entry-row:hover {
    border-color: var(--border-default);
    box-shadow: var(--shadow-sm);
}

@media (max-width: 900px) {
    .worklog-grid-header {
        display: none;
    }
    .worklog-entry-row {
        grid-template-columns: 1fr;
        padding: var(--space-4);
        position: relative;
        gap: var(--space-2);
    }
}

/* ============================================================
   Tables
   ============================================================ */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.data-table thead {
    background: var(--bg-surface-2);
    position: sticky;
    top: 0;
    z-index: 2;
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--text-secondary);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    border-bottom: 2px solid var(--border-light);
}

.data-table td {
    padding: 13px 16px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover td {
    background: var(--bg-hover);
}

.data-table tfoot td {
    padding: 14px 16px;
    font-weight: 700;
    border-top: 2px solid var(--border-default);
    border-bottom: 2px solid var(--border-default);
    background: var(--bg-surface-2);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.td-actions {
    white-space: nowrap;
    display: flex;
    gap: var(--space-1);
}

.text-right {
    text-align: right;
}

.text-center {
    text-align: center;
}

.text-mono {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

.text-money {
    font-family: var(--font-mono);
    font-weight: 600;
    white-space: nowrap;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
    line-height: 1.4;
}

.badge-success {
    background: var(--success-light);
    color: var(--success-dark);
}

.badge-warning {
    background: var(--warning-light);
    color: var(--warning-dark);
}

.badge-danger {
    background: var(--danger-light);
    color: var(--danger-dark);
}

.badge-info {
    background: var(--info-light);
    color: var(--info-dark);
}

.badge-secondary {
    background: var(--bg-surface-3);
    color: var(--text-secondary);
}

.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.6;
}

/* ============================================================
   Alerts / Flash Messages
   ============================================================ */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-5);
    animation: alertSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
    border: 1px solid transparent;
    position: relative;
}

@keyframes alertSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background: var(--success-light);
    color: var(--success-dark);
    border-color: var(--success);
}

.alert-error {
    background: var(--danger-light);
    color: var(--danger-dark);
    border-color: var(--danger);
}

.alert-warning {
    background: var(--warning-light);
    color: var(--warning-dark);
    border-color: var(--warning);
}

.alert-info {
    background: var(--info-light);
    color: var(--info-dark);
    border-color: var(--info);
}

.alert-close {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    opacity: 0.5;
    font-size: var(--text-lg);
    padding: var(--space-1);
    transition: opacity var(--transition-fast);
}

.alert-close:hover {
    opacity: 1;
}

/* ============================================================
   Modal / Dialog
   ============================================================ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn 0.2s ease;
}

.modal-backdrop.active {
    display: flex;
}

.modal {
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.modal-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: var(--text-lg);
    font-weight: 700;
}

.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-3);
}

/* ============================================================
   Toolbar (Filters + Actions)
   ============================================================ */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-6);
}

.toolbar-filters {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.toolbar-filters .form-control {
    width: auto;
    min-width: 160px;
}

.toolbar-actions {
    display: flex;
    gap: var(--space-3);
}

/* ============================================================
   Empty State
   ============================================================ */
.empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-6);
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    opacity: 0.4;
}

.empty-state h4 {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: var(--text-sm);
    margin-bottom: var(--space-5);
}

/* ============================================================
   Pagination
   ============================================================ */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    margin-top: var(--space-6);
    list-style: none;
}

.pagination .page-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.pagination .page-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.pagination .page-link.active {
    background: var(--primary-500);
    color: white;
    box-shadow: 0 2px 6px rgba(99, 102, 241, 0.3);
}

/* ============================================================
   Utilities
   ============================================================ */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.text-sm { font-size: var(--text-sm); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }