/* =====================================================================
 * NOVA Premium UX - Phase 2 (compat layer)
 * Cárgalo DESPUÉS de style.css. No reemplaza, refina.
 * Mantenido para compatibilidad. La capa nueva está en nova-theme.css
 * ===================================================================== */

:root {
    --nv-bg: #f7f8fb;
    --nv-card: #ffffff;
    --nv-border: #e6e9f0;
    --nv-border-soft: #f1f3f8;
    --nv-text: #0f172a;
    --nv-text-muted: #64748b;
    --nv-text-faint: #94a3b8;
    --nv-primary: #2563eb;
    --nv-primary-hover: #1d4ed8;
    --nv-primary-soft: #eff6ff;
    --nv-success: #16a34a;
    --nv-success-soft: #dcfce7;
    --nv-danger: #dc2626;
    --nv-danger-soft: #fee2e2;
    --nv-warning: #d97706;
    --nv-warning-soft: #fef3c7;
    --nv-info: #0284c7;
    --nv-info-soft: #e0f2fe;
    --nv-violet: #7c3aed;
    --nv-violet-soft: #ede9fe;
    --nv-shadow-sm: 0 1px 2px rgba(15,23,42,.04), 0 1px 3px rgba(15,23,42,.04);
    --nv-shadow-md: 0 4px 12px rgba(15,23,42,.05), 0 1px 3px rgba(15,23,42,.03);
    --nv-shadow-lg: 0 12px 28px rgba(15,23,42,.07);
    --nv-radius: 14px;
    --nv-radius-sm: 10px;
    --nv-radius-lg: 18px;
}

body {
    background: var(--nv-bg);
    color: var(--nv-text);
    -webkit-font-smoothing: antialiased;
    font-feature-settings: "ss01", "cv11";
}

.page-content { padding: 28px !important; }

/* ===== TIPOGRAFIA =================================================== */
h1, .page-title { font-size: 24px; font-weight: 700; letter-spacing: -0.01em; color: var(--nv-text); margin: 0; }
h5 { font-size: 15px; font-weight: 600; color: var(--nv-text); }
small, .small { color: var(--nv-text-muted); }
.text-muted { color: var(--nv-text-muted) !important; }

/* ===== CARDS ======================================================== */
.card-custom,
.dashboard-card {
    background: var(--nv-card);
    border-radius: var(--nv-radius);
    border: 1px solid var(--nv-border-soft);
    box-shadow: var(--nv-shadow-sm);
    transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.card-custom:hover { box-shadow: var(--nv-shadow-md); }

/* ===== KPI CARDS (Dashboard) ======================================== */
.kpi {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--nv-card);
    border: 1px solid var(--nv-border-soft);
    border-radius: var(--nv-radius);
    padding: 18px 20px;
    box-shadow: var(--nv-shadow-sm);
    transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
    position: relative;
    overflow: hidden;
}
.kpi:hover { box-shadow: var(--nv-shadow-md); transform: translateY(-2px); border-color: var(--nv-border); }
.kpi-icon {
    flex-shrink: 0;
    width: 46px; height: 46px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
}
.kpi-body { min-width: 0; flex: 1; }
.kpi-label {
    font-size: 12px;
    color: var(--nv-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    margin-bottom: 4px;
}
.kpi-value {
    font-size: 26px;
    font-weight: 700;
    color: var(--nv-text);
    letter-spacing: -0.02em;
    line-height: 1.1;
}
.kpi-meta { font-size: 12px; color: var(--nv-text-faint); margin-top: 2px; }
.kpi-trend.up   { color: var(--nv-success); }
.kpi-trend.down { color: var(--nv-danger); }
.kpi--primary  .kpi-icon { background: var(--nv-primary-soft); color: var(--nv-primary); }
.kpi--success  .kpi-icon { background: var(--nv-success-soft); color: var(--nv-success); }
.kpi--warning  .kpi-icon { background: var(--nv-warning-soft); color: var(--nv-warning); }
.kpi--danger   .kpi-icon { background: var(--nv-danger-soft); color: var(--nv-danger); }
.kpi--info     .kpi-icon { background: var(--nv-info-soft); color: var(--nv-info); }
.kpi--violet   .kpi-icon { background: var(--nv-violet-soft); color: var(--nv-violet); }
.kpi--neutral  .kpi-icon { background: #f1f5f9; color: #475569; }

.section { margin-bottom: 28px; }
.section-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--nv-text-muted);
    margin: 0 0 14px 0;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.01em;
    border: 1px solid transparent;
    white-space: nowrap;
}
.status-badge .dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}
.status-borrador  { background: #f1f5f9; color: #475569; border-color: #e2e8f0; }
.status-borrador  .dot { background: #94a3b8; }
.status-enviada   { background: var(--nv-info-soft);    color: #075985; border-color: #bae6fd; }
.status-enviada   .dot { background: var(--nv-info); }
.status-vista     { background: var(--nv-violet-soft);  color: #5b21b6; border-color: #ddd6fe; }
.status-vista     .dot { background: var(--nv-violet); }
.status-aprobada  { background: var(--nv-success-soft); color: #166534; border-color: #bbf7d0; }
.status-aprobada  .dot { background: var(--nv-success); }
.status-rechazada { background: var(--nv-danger-soft);  color: #991b1b; border-color: #fecaca; }
.status-rechazada .dot { background: var(--nv-danger); }
.status-vencida   { background: var(--nv-warning-soft); color: #92400e; border-color: #fde68a; }
.status-vencida   .dot { background: var(--nv-warning); }
.status-facturada { background: #d1fae5;                color: #065f46; border-color: #a7f3d0; }
.status-facturada .dot { background: #059669; }

.card-custom > .table-responsive,
.card-custom > table { margin: -8px -4px 0; }
table.table {
    margin-bottom: 0;
    border-collapse: separate;
    border-spacing: 0;
    background: transparent;
    border-radius: 0;
}
table.table thead th {
    background: #f8fafc !important;
    color: var(--nv-text-muted) !important;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 12px 14px !important;
    border: none !important;
    border-bottom: 1px solid var(--nv-border-soft) !important;
}
table.table tbody td {
    padding: 14px !important;
    border-bottom: 1px solid var(--nv-border-soft) !important;
    vertical-align: middle;
    font-size: 14px;
}
table.table tbody tr:last-child td { border-bottom: none !important; }
table.table tbody tr { transition: background .12s ease; }
table.table tbody tr:hover { background: #fafbfd; }

table .btn-group-sm .btn {
    border: 1px solid var(--nv-border);
    background: #fff;
    color: var(--nv-text-muted);
    transition: all .12s ease;
}
table .btn-group-sm .btn:hover { background: var(--nv-primary-soft); color: var(--nv-primary); border-color: var(--nv-primary); }
table .btn-group-sm .btn.btn-outline-danger:hover  { background: var(--nv-danger-soft); color: var(--nv-danger); border-color: var(--nv-danger); }
table .btn-group-sm .btn.btn-outline-success:hover { background: var(--nv-success-soft); color: var(--nv-success); border-color: var(--nv-success); }

.sidebar { box-shadow: 4px 0 24px rgba(15,23,42,.18); }
.sidebar .nav-link {
    position: relative;
    color: #cbd5e1;
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 500;
    transition: background .15s ease, color .15s ease, padding-left .15s ease;
}
.sidebar .nav-link i { margin-right: 10px; font-size: 16px; opacity: 0.85; }
.sidebar .nav-link:hover {
    background: rgba(255,255,255,.06);
    color: #fff;
    padding-left: 16px;
}
.sidebar .nav-link.active {
    background: linear-gradient(135deg, rgba(37,99,235,.20), rgba(37,99,235,.08));
    color: #fff;
    font-weight: 600;
}
.sidebar .nav-link.active::before {
    content: '';
    position: absolute;
    left: 0; top: 8px; bottom: 8px;
    width: 3px;
    background: var(--nv-primary);
    border-radius: 0 3px 3px 0;
}
.sidebar h3 { font-size: 24px; letter-spacing: 3px; }
.sidebar small { color: #94a3b8; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.sidebar .nav { margin-top: 8px; }
.sidebar .text-warning { color: #fbbf24 !important; }

.topbar {
    height: 64px;
    border-bottom: 1px solid var(--nv-border-soft);
    box-shadow: 0 1px 2px rgba(15,23,42,.02);
}
.topbar-title h5 { font-size: 15px; }
.topbar-title small { font-size: 11px; }

.form-control, .form-select {
    border: 1px solid var(--nv-border) !important;
    border-radius: var(--nv-radius-sm) !important;
    padding: 10px 12px !important;
    font-size: 14px !important;
    box-shadow: none !important;
    transition: border-color .12s ease, box-shadow .12s ease;
}
.form-control:focus, .form-select:focus {
    border-color: var(--nv-primary) !important;
    box-shadow: 0 0 0 3px rgba(37,99,235,.12) !important;
    outline: none;
}
.form-label { font-size: 13px; font-weight: 500; color: var(--nv-text-muted); margin-bottom: 6px; }
.form-control.form-control-sm { padding: 7px 10px !important; font-size: 13px !important; }

.btn {
    border-radius: var(--nv-radius-sm);
    font-weight: 500;
    font-size: 14px;
    padding: 8px 16px;
    transition: all .12s ease;
}
.btn-primary {
    background: var(--nv-primary);
    border-color: var(--nv-primary);
    box-shadow: 0 1px 2px rgba(37,99,235,.20);
}
.btn-primary:hover {
    background: var(--nv-primary-hover);
    border-color: var(--nv-primary-hover);
    box-shadow: 0 4px 12px rgba(37,99,235,.25);
    transform: translateY(-1px);
}
.btn-outline-primary:hover, .btn-outline-secondary:hover {
    box-shadow: 0 2px 8px rgba(15,23,42,.06);
}
.btn-sm { padding: 5px 10px; font-size: 12px; }

.alert { border-radius: var(--nv-radius-sm); border: 1px solid transparent; padding: 12px 16px; font-size: 14px; }
.alert-info     { background: var(--nv-info-soft);    color: #075985; border-color: #bae6fd; }
.alert-success  { background: var(--nv-success-soft); color: #166534; border-color: #bbf7d0; }
.alert-warning  { background: var(--nv-warning-soft); color: #92400e; border-color: #fde68a; }
.alert-danger   { background: var(--nv-danger-soft);  color: #991b1b; border-color: #fecaca; }

.progress { background: var(--nv-border-soft); border-radius: 999px; height: 8px; overflow: hidden; }
.progress-bar { transition: width .4s ease; }

.pagination { gap: 4px; }
.pagination .page-item .page-link {
    border: 1px solid var(--nv-border);
    border-radius: 8px !important;
    color: var(--nv-text-muted);
    font-size: 13px;
    padding: 6px 12px;
    transition: all .12s ease;
}
.pagination .page-item.active .page-link {
    background: var(--nv-primary);
    border-color: var(--nv-primary);
    color: #fff;
    font-weight: 600;
}
.pagination .page-link:hover { background: var(--nv-primary-soft); border-color: var(--nv-primary); color: var(--nv-primary); }

.card-custom dl.row { margin-bottom: 0; row-gap: 8px; }
.card-custom dl.row dt { font-size: 12px; color: var(--nv-text-faint); font-weight: 500; text-transform: uppercase; letter-spacing: 0.04em; padding-top: 2px; }
.card-custom dl.row dd { font-size: 14px; color: var(--nv-text); margin-bottom: 0; }
.card-custom dl.row dd code { background: #f1f5f9; padding: 1px 6px; border-radius: 4px; font-size: 12px; }

.user-card { background: rgba(255,255,255,.05) !important; padding: 12px; border-radius: 12px; }
.user-avatar { width: 40px; height: 40px; font-size: 14px; box-shadow: 0 2px 8px rgba(37,99,235,.30); }
.logout-btn {
    background: rgba(239,68,68,.12) !important;
    color: #fca5a5 !important;
    font-size: 13px;
    padding: 9px;
    border-radius: 10px;
    margin-top: 10px;
    transition: all .15s ease;
}
.logout-btn:hover { background: var(--nv-danger) !important; color: #fff !important; }

hr { border-color: var(--nv-border-soft); opacity: 1; margin: 22px 0; }
code { color: #0f172a; background: #f1f5f9; padding: 2px 6px; border-radius: 4px; font-size: 90%; }

@media (max-width: 768px) {
    .page-content { padding: 16px !important; }
    .kpi-value { font-size: 22px; }
    .kpi-icon { width: 40px; height: 40px; font-size: 18px; }
    h1, .page-title { font-size: 20px; }
}