/* ============================================================
   NOVA CORE CSS v3.0 - TechSSPTY Design System
   Sistema unificado de estilos
   ============================================================ */

/* --- Variables (Fuente única de verdad) --- */
:root {
    /* ── Paleta corporativa TechSSPTY ──────────────────────── */
    --brand-primary:    #0077B6;
    --brand-primary-dk: #03045E;
    --brand-accent:     #00B4D8;
    --brand-light:      #CAF0F8;

    /* ── Aliases sistema Nova ──────────────────────────────── */
    --nova-primary:       var(--brand-primary);
    --nova-primary-hover: #005f99;
    --nova-accent:        var(--brand-accent);
    --nova-secondary:     #6c757d;
    --nova-success:       #198754;
    --nova-info:          #0dcaf0;
    --nova-warning:       #f59e0b;
    --nova-danger:        #dc3545;
    --nova-light:         #f8f9fa;
    --nova-dark:          #1a1d23;
    --nova-darker:        #13151a;

    /* ── Aliases legacy (brand-colors.css unificado aquí) ─── */
    /* Mantener compatibilidad con módulos que usen estos tokens */
    --brand-cyan:        var(--brand-accent);
    --brand-blue:        var(--brand-primary);
    --brand-navy:        var(--brand-primary-dk);
    --brand-white:       #FFFFFF;
    --primary-color:     var(--brand-primary);
    --primary-dark:      var(--brand-primary-dk);
    --primary-light:     var(--brand-accent);
    /* Neutros bootstrap-compatibles */
    --gray-100: #f8f9fa; --gray-200: #e9ecef; --gray-300: #dee2e6;
    --gray-400: #ced4da; --gray-500: #adb5bd; --gray-600: #6c757d;
    --gray-700: #495057; --gray-800: #343a40; --gray-900: #212529;

    /* Layout */
    --nova-sidebar-width:    260px;
    --nova-header-height:    62px;
    --nova-body-bg:          #f0f2f5;
    --nova-card-bg:          #ffffff;
    --nova-border:           #e5e9f0;
    --nova-text:             #2d3748;
    --nova-text-muted:       #718096;
    --nova-radius:           10px;
    --nova-radius-sm:        6px;
    --nova-shadow:           0 2px 12px rgba(0,0,0,0.07);
    --nova-shadow-md:        0 4px 20px rgba(0,0,0,0.10);

    /* Sidebar */
    --sidebar-bg:          #13151a;
    --sidebar-border:      rgba(255,255,255,0.06);
    --sidebar-link:        rgba(255,255,255,0.60);
    --sidebar-link-hover:  rgba(255,255,255,0.92);
    --sidebar-active-bg:   rgba(0,119,182,0.25);
    --sidebar-active:      #00B4D8;
    --sidebar-section:     rgba(255,255,255,0.30);
}

/* --- Dark Mode --- */
[data-theme="dark"] {
    --nova-body-bg:   #0f1117;
    --nova-card-bg:   #1a1d23;
    --nova-border:    #2a2d35;
    --nova-text:      #e2e8f0;
    --nova-text-muted:#94a3b8;
    --nova-shadow:    0 2px 12px rgba(0,0,0,0.30);
}

/* --- Base --- */
*, *::before, *::after { box-sizing: border-box; }

body {
    background-color: var(--nova-body-bg);
    font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--nova-text);
    font-size: 0.9rem;
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.main-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.nova-sidebar {
    width: var(--nova-sidebar-width);
    background: var(--sidebar-bg);
    color: #fff;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 1040;
    overflow: hidden; /* la nav interna hace el scroll */
    transition: transform 0.28s cubic-bezier(.4,0,.2,1), width 0.28s ease;
    display: flex;
    flex-direction: column;
}

/* La nav scrollea; el footer queda fijo al fondo */
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.25rem 0 0.5rem;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

.sidebar-brand {
    min-height: var(--nova-header-height);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--sidebar-border);
    background: linear-gradient(135deg, #03045E 0%, #0077B6 100%);
}
.sidebar-brand img { max-height: 44px; width: auto; }

.nav-section-label {
    display: block;
    padding: 1rem 1.25rem 0.35rem;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--sidebar-section);
}

.sidebar-nav .nav-link {
    color: var(--sidebar-link);
    padding: 0.55rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    border-radius: 0;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.18s, background 0.18s;
    text-decoration: none;
    white-space: nowrap;
    border-left: 3px solid transparent;
}
.sidebar-nav .nav-link i {
    width: 18px;
    text-align: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}
.sidebar-nav .nav-link:hover {
    color: var(--sidebar-link-hover);
    background: rgba(255,255,255,0.05);
}
.sidebar-nav .nav-link.active {
    color: var(--sidebar-active);
    background: var(--sidebar-active-bg);
    border-left-color: var(--sidebar-active);
    font-weight: 600;
}

/* Badge en sidebar */
.sidebar-nav .nav-link .badge {
    margin-left: auto;
    font-size: 0.65rem;
    padding: 0.25em 0.5em;
}

/* ============================================================
   HEADER / TOPBAR
   ============================================================ */
.nova-header {
    height: var(--nova-header-height);
    background: var(--nova-card-bg);
    border-bottom: 1px solid var(--nova-border);
    position: fixed;
    top: 0; right: 0;
    left: var(--nova-sidebar-width);
    z-index: 1030;
    transition: left 0.28s ease, background 0.3s;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    gap: 0.75rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.nova-content {
    margin-top: var(--nova-header-height);
    margin-left: var(--nova-sidebar-width);
    padding: 1.5rem;
    flex: 1 1 auto;
    min-width: 0;
    width: calc(100% - var(--nova-sidebar-width));
    overflow-x: hidden;
    transition: margin-left 0.28s ease, width 0.28s ease;
}

.nova-footer {
    margin-left: var(--nova-sidebar-width);
    width: calc(100% - var(--nova-sidebar-width));
    background: var(--nova-card-bg);
    border-top: 1px solid var(--nova-border);
    padding: 0.75rem 1.5rem;
    text-align: center;
    color: var(--nova-text-muted);
    font-size: 0.78rem;
    transition: margin-left 0.28s ease, width 0.28s ease;
    flex-shrink: 0;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
    border: 1px solid var(--nova-border);
    border-radius: var(--nova-radius);
    background: var(--nova-card-bg);
    box-shadow: var(--nova-shadow);
    margin-bottom: 1.25rem;
    transition: background 0.3s, border-color 0.3s;
}
.card-header {
    background: transparent;
    border-bottom: 1px solid var(--nova-border);
    padding: 0.9rem 1.25rem;
    font-weight: 600;
    color: var(--nova-text);
    font-size: 0.9rem;
}
.card-body { padding: 1.25rem; }

/* Stat cards */
.stat-card {
    border: 1px solid var(--nova-border);
    border-radius: var(--nova-radius);
    background: var(--nova-card-bg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--nova-shadow);
    transition: transform 0.18s, box-shadow 0.18s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--nova-shadow-md); }
.stat-icon {
    width: 52px; height: 52px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}
.stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1; color: var(--nova-text); }
.stat-label { font-size: 0.78rem; color: var(--nova-text-muted); margin-top: 0.25rem; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    border-radius: var(--nova-radius-sm);
    font-weight: 500;
    padding: 0.45rem 1rem;
    font-size: 0.875rem;
    transition: all 0.18s;
    line-height: 1.5;
}
.btn-primary {
    background: var(--nova-primary);
    border-color: var(--nova-primary);
}
.btn-primary:hover {
    background: var(--nova-primary-hover);
    border-color: var(--nova-primary-hover);
}
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.8rem; }
.btn-lg { padding: 0.65rem 1.5rem; font-size: 0.95rem; }

/* ============================================================
   FORMS
   ============================================================ */
.form-control, .form-select {
    border-radius: var(--nova-radius-sm);
    border-color: var(--nova-border);
    padding: 0.45rem 0.75rem;
    font-size: 0.875rem;
    background: var(--nova-card-bg);
    color: var(--nova-text);
    transition: border-color 0.18s, box-shadow 0.18s;
}
.form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 3px rgba(0,119,182,0.15);
    border-color: var(--nova-primary);
    outline: none;
}
.form-label { font-weight: 500; font-size: 0.82rem; color: var(--nova-text-muted); }
.input-group-text {
    background: var(--nova-light);
    border-color: var(--nova-border);
    color: var(--nova-text-muted);
}

/* ============================================================
   TABLES
   ============================================================ */
.table {
    color: var(--nova-text);
    font-size: 0.875rem;
}
.table thead th {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--nova-text-muted);
    border-bottom: 2px solid var(--nova-border);
    padding: 0.75rem 1rem;
    background: transparent;
}
.table td { padding: 0.75rem 1rem; vertical-align: middle; border-color: var(--nova-border); }
.table-hover tbody tr:hover { background: rgba(0,119,182,0.035); }

/* ============================================================
   BADGES
   ============================================================ */
.badge {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.3em 0.65em;
    border-radius: 6px;
}

/* ============================================================
   MODALS
   ============================================================ */
.modal-content {
    border: none;
    border-radius: var(--nova-radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}
.modal-header {
    border-bottom: 1px solid var(--nova-border);
    padding: 1rem 1.25rem;
}
.modal-footer { border-top: 1px solid var(--nova-border); }

/* ============================================================
   ALERTS
   ============================================================ */
.alert { border-radius: var(--nova-radius-sm); border: 1px solid transparent; font-size: 0.875rem; }

/* ============================================================
   UTILITIES
   ============================================================ */
.shadow-soft { box-shadow: var(--nova-shadow) !important; }
.shadow-md    { box-shadow: var(--nova-shadow-md) !important; }
.text-small   { font-size: 0.78rem; }
.text-caption { font-size: 0.7rem; }
.fw-semibold  { font-weight: 600 !important; }

.rounded-nova { border-radius: var(--nova-radius) !important; }
.border-nova  { border-color: var(--nova-border) !important; }

/* Gradientes de marca */
.bg-brand-gradient { background: linear-gradient(135deg, var(--brand-primary-dk) 0%, var(--brand-primary) 100%); }
.bg-brand-accent   { background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-accent) 100%); }

/* Avatares */
.avatar {
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 50%; font-weight: 700; color: #fff;
    flex-shrink: 0;
}
.avatar-sm  { width: 30px; height: 30px; font-size: 0.75rem; }
.avatar-md  { width: 40px; height: 40px; font-size: 0.9rem; }
.avatar-lg  { width: 56px; height: 56px; font-size: 1.1rem; }

/* ============================================================
   MOBILE RESPONSIVE
   ============================================================ */
@media (max-width: 991.98px) {
    .nova-sidebar {
        transform: translateX(-100%);
        width: 260px;
    }
    .nova-sidebar.show { transform: translateX(0); }

    .nova-header  { left: 0; }
    .nova-content { margin-left: 0; padding: 1rem; width: 100%; }
    .nova-footer  { margin-left: 0; width: 100%; }

    /* Overlay al abrir sidebar */
    .sidebar-overlay {
        display: none;
        position: fixed; inset: 0;
        background: rgba(0,0,0,0.45);
        z-index: 1039;
    }
    .sidebar-open .sidebar-overlay { display: block; }
    .sidebar-open .nova-sidebar    { transform: translateX(0); }
}

/* ============================================================
   ANIMACIONES
   ============================================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.3s ease forwards; }

/* Hover elevación para cards */
.hover-lift { transition: transform 0.2s, box-shadow 0.2s; }
.hover-lift:hover { transform: translateY(-3px); box-shadow: var(--nova-shadow-md) !important; }

/* ============================================================
   PAGE HEADER PATTERN
   ============================================================ */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.page-header h4, .page-header h5 { margin-bottom: 0; }