/* ============================================================
   NOVA ENHANCED CSS v1.0 — TechSSPTY Design System
   Capa de refinamiento visual sobre nova-core.css
   ============================================================ */

/* ============================================================
   PAGE HEADER — Patrón estándar para cabecera de módulos
   ============================================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--nova-border);
}
.page-header-left h4,
.page-header-left h5 {
    margin-bottom: 0.15rem;
    font-weight: 700;
    color: var(--nova-text);
}
.page-header-left p {
    margin-bottom: 0;
    font-size: 0.82rem;
    color: var(--nova-text-muted);
}
.page-header-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Ícono de módulo en el header */
.page-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    margin-right: 0.65rem;
    flex-shrink: 0;
    font-size: 1rem;
}
.page-icon-primary  { background: rgba(0,119,182,.12); color: var(--nova-primary); }
.page-icon-success  { background: rgba(25,135,84,.12);  color: var(--nova-success); }
.page-icon-warning  { background: rgba(245,158,11,.12); color: var(--nova-warning); }
.page-icon-danger   { background: rgba(220,53,69,.12);  color: var(--nova-danger); }
.page-icon-info     { background: rgba(13,202,240,.12); color: var(--nova-info); }
.page-icon-secondary{ background: rgba(108,117,125,.12);color: var(--nova-secondary); }

/* ============================================================
   FILTER BAR — Barra de filtros estándar
   ============================================================ */
.filter-bar {
    background: var(--nova-card-bg);
    border: 1px solid var(--nova-border);
    border-radius: var(--nova-radius);
    padding: 0.85rem 1rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--nova-shadow);
}
.filter-bar .form-control,
.filter-bar .form-select {
    font-size: 0.85rem;
}

/* ============================================================
   TABLE IMPROVEMENTS
   ============================================================ */
.table-nova {
    font-size: 0.875rem;
    color: var(--nova-text);
    margin-bottom: 0;
}
.table-nova thead {
    background: linear-gradient(135deg, #f8fafc 0%, #f0f4f8 100%);
    border-bottom: 2px solid var(--nova-border);
}
[data-theme="dark"] .table-nova thead {
    background: #1e2028;
}
.table-nova thead th {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    color: var(--nova-text-muted);
    padding: 0.75rem 1rem;
    white-space: nowrap;
    border: none;
}
.table-nova tbody tr {
    border-bottom: 1px solid var(--nova-border);
    transition: background 0.12s;
}
.table-nova tbody tr:last-child { border-bottom: none; }
.table-nova tbody tr:hover {
    background: rgba(0,119,182,0.04);
}
[data-theme="dark"] .table-nova tbody tr:hover {
    background: rgba(0,119,182,0.08);
}
.table-nova td {
    padding: 0.7rem 1rem;
    vertical-align: middle;
    border: none;
    color: var(--nova-text);
}
/* Primera columna con indent */
.table-nova thead th:first-child,
.table-nova tbody td:first-child { padding-left: 1.25rem; }
/* Última columna alineada a la derecha */
.table-nova thead th:last-child,
.table-nova tbody td:last-child  { padding-right: 1.25rem; }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state {
    text-align: center;
    padding: 3.5rem 1rem;
    color: var(--nova-text-muted);
}
.empty-state-icon {
    font-size: 2.5rem;
    opacity: 0.22;
    margin-bottom: 0.75rem;
    display: block;
}
.empty-state-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--nova-text-muted);
    margin-bottom: 0.35rem;
}
.empty-state-desc {
    font-size: 0.8rem;
    color: var(--nova-text-muted);
}

/* ============================================================
   ACTION BUTTONS (en tablas y formularios)
   ============================================================ */
.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 7px;
    border: 1px solid var(--nova-border);
    background: var(--nova-card-bg);
    color: var(--nova-text-muted);
    font-size: 0.78rem;
    transition: all 0.15s;
    padding: 0;
    text-decoration: none;
}
.btn-action:hover {
    background: var(--nova-primary);
    border-color: var(--nova-primary);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0,119,182,0.3);
}
.btn-action-danger:hover {
    background: var(--nova-danger);
    border-color: var(--nova-danger);
    box-shadow: 0 3px 8px rgba(220,53,69,0.3);
}
.btn-action-success:hover {
    background: var(--nova-success);
    border-color: var(--nova-success);
    box-shadow: 0 3px 8px rgba(25,135,84,0.3);
}
.btn-action-warning:hover {
    background: var(--nova-warning);
    border-color: var(--nova-warning);
    color: #fff;
    box-shadow: 0 3px 8px rgba(245,158,11,0.3);
}
.actions-col { white-space: nowrap; }

/* ============================================================
   KPI / STAT CARDS MEJORADAS
   ============================================================ */
.kpi-card {
    background: var(--nova-card-bg);
    border: 1px solid var(--nova-border);
    border-radius: var(--nova-radius);
    padding: 1.25rem 4rem 1.25rem 1.25rem; /* espacio derecho para el icono absoluto */
    box-shadow: var(--nova-shadow);
    transition: transform 0.18s, box-shadow 0.18s;
    position: relative;
    overflow: hidden;
}
.kpi-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--nova-shadow-md);
}
.kpi-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--kpi-accent, var(--nova-primary));
    border-radius: var(--nova-radius) var(--nova-radius) 0 0;
}
.kpi-card.kpi-primary   { --kpi-accent: var(--nova-primary); }
.kpi-card.kpi-success   { --kpi-accent: var(--nova-success); }
.kpi-card.kpi-warning   { --kpi-accent: var(--nova-warning); }
.kpi-card.kpi-danger    { --kpi-accent: var(--nova-danger); }
.kpi-card.kpi-info      { --kpi-accent: var(--nova-info); }

.kpi-label  { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.6px; color: var(--nova-text-muted); margin-bottom: 0.4rem; }
.kpi-value  { font-size: 1.9rem; font-weight: 800; line-height: 1; color: var(--nova-text); }
.kpi-footer { font-size: 0.75rem; color: var(--nova-text-muted); margin-top: 0.35rem; }
.kpi-icon   {
    position: absolute; top: 1rem; right: 1rem;
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.2rem;
    background: rgba(0,119,182,0.08);
    color: var(--nova-primary);
}
.kpi-card.kpi-success .kpi-icon { background: rgba(25,135,84,.1);  color: var(--nova-success); }
.kpi-card.kpi-warning .kpi-icon { background: rgba(245,158,11,.1); color: var(--nova-warning); }
.kpi-card.kpi-danger  .kpi-icon { background: rgba(220,53,69,.1);  color: var(--nova-danger); }
.kpi-card.kpi-info    .kpi-icon { background: rgba(13,202,240,.1); color: var(--nova-info); }

/* ============================================================
   SECTION CARDS (Cards de sección/módulo para páginas hub)
   ============================================================ */
.module-card {
    background: var(--nova-card-bg);
    border: 1px solid var(--nova-border);
    border-radius: var(--nova-radius);
    padding: 1.25rem;
    box-shadow: var(--nova-shadow);
    height: 100%;
    transition: transform 0.18s, box-shadow 0.18s;
}
.module-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--nova-shadow-md);
}
.module-card-icon {
    width: 46px; height: 46px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem;
    margin-bottom: 0.9rem;
}
.module-card-title { font-size: 0.95rem; font-weight: 700; color: var(--nova-text); margin-bottom: 0.2rem; }
.module-card-desc  { font-size: 0.78rem; color: var(--nova-text-muted); margin-bottom: 1rem; }

/* ============================================================
   STATUS BADGES — Variante extendida
   ============================================================ */
.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 0.3em;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.3em 0.7em;
    border-radius: 6px;
}
.badge-status::before {
    content: '';
    display: inline-block;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.7;
}

/* ============================================================
   DARK MODE IMPROVEMENTS
   ============================================================ */
[data-theme="dark"] .filter-bar {
    background: var(--nova-card-bg);
    border-color: var(--nova-border);
}
[data-theme="dark"] .kpi-card,
[data-theme="dark"] .module-card {
    background: var(--nova-card-bg);
    border-color: var(--nova-border);
}
[data-theme="dark"] .btn-action {
    background: var(--nova-card-bg);
    border-color: var(--nova-border);
    color: var(--nova-text-muted);
}
[data-theme="dark"] .table-nova thead {
    background: rgba(255,255,255,0.03);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 767.98px) {
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .page-header-actions { width: 100%; }
    .page-header-actions .btn { flex: 1; justify-content: center; }

    .kpi-value { font-size: 1.5rem; }

    .filter-bar .row { gap: 0.5rem; }
    .filter-bar .col-md-2,
    .filter-bar .col-md-3 { min-width: 50%; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
    .filter-bar, .page-header-actions { display: none !important; }
}