/* =====================================================================
   Panel MDM · Hoja de estilos principal
   Usa variables nativas de Bootstrap 5.3 (data-bs-theme="dark|light")
   y añade ajustes propios para tipografía, densidad y accesibilidad.
   ===================================================================== */

:root {
    --mdm-brand: #044bd9;
    --mdm-brand-dark: #0338a9;
    --mdm-brand-light: #2f6aff;
    --mdm-radius: 0.625rem;
    --mdm-radius-sm: 0.375rem;
    --mdm-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
    --mdm-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    --mdm-transition: 180ms cubic-bezier(.4, 0, .2, 1);

    /* Override variables Bootstrap para usar el azul de marca */
    --bs-primary: var(--mdm-brand);
    --bs-primary-rgb: 4, 75, 217;
    --bs-link-color: var(--mdm-brand);
    --bs-link-hover-color: var(--mdm-brand-dark);
}

[data-bs-theme="dark"] {
    --mdm-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --mdm-shadow: 0 4px 16px rgba(0, 0, 0, 0.55);
    --bs-primary: var(--mdm-brand-light);
    --bs-primary-rgb: 47, 106, 255;
    --bs-link-color: var(--mdm-brand-light);
    --bs-link-hover-color: #6b94ff;
    color-scheme: dark;
}

/* Botones primary y badges refrescados al azul de marca */
.btn-primary {
    --bs-btn-bg: var(--mdm-brand);
    --bs-btn-border-color: var(--mdm-brand);
    --bs-btn-hover-bg: var(--mdm-brand-dark);
    --bs-btn-hover-border-color: var(--mdm-brand-dark);
    --bs-btn-active-bg: var(--mdm-brand-dark);
    --bs-btn-active-border-color: var(--mdm-brand-dark);
    --bs-btn-disabled-bg: var(--mdm-brand);
    --bs-btn-disabled-border-color: var(--mdm-brand);
}
.btn-outline-primary {
    --bs-btn-color: var(--mdm-brand);
    --bs-btn-border-color: var(--mdm-brand);
    --bs-btn-hover-bg: var(--mdm-brand);
    --bs-btn-hover-border-color: var(--mdm-brand);
    --bs-btn-active-bg: var(--mdm-brand-dark);
    --bs-btn-active-border-color: var(--mdm-brand-dark);
}
.text-primary { color: var(--mdm-brand) !important; }
.bg-primary { background-color: var(--mdm-brand) !important; }
[data-bs-theme="dark"] .text-primary { color: var(--mdm-brand-light) !important; }
[data-bs-theme="dark"] .bg-primary { background-color: var(--mdm-brand-light) !important; }

/* Logo: en dark mode invertimos el azul oscuro a una variante más clara */
.brand-logo {
    display: inline-block;
    vertical-align: middle;
    filter: none;
    transition: filter var(--mdm-transition);
}
[data-bs-theme="dark"] .brand-logo {
    /* Aclara el azul para legibilidad sobre fondos oscuros */
    filter: brightness(1.35) saturate(1.1);
}

.user-avatar {
    background: var(--mdm-brand) !important;
}
[data-bs-theme="dark"] .user-avatar {
    background: var(--mdm-brand-light) !important;
}

/* ---------------------------------------------------------------- Base */

html, body {
    height: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    font-size: 0.95rem;
    letter-spacing: -0.005em;
    min-height: 100vh;
}

body.app-body {
    background: var(--bs-body-bg);
    display: flex;
    flex-direction: column;
}

main {
    flex: 1 0 auto;
}

/* --------------------------------------------------------------- Navbar */

.navbar {
    box-shadow: var(--mdm-shadow-sm);
    backdrop-filter: saturate(180%) blur(6px);
}

.navbar .nav-link {
    border-radius: var(--mdm-radius-sm);
    padding: 0.45rem 0.75rem;
    color: var(--bs-body-color);
    transition: background-color var(--mdm-transition), color var(--mdm-transition);
}

.navbar .nav-link:hover,
.navbar .nav-link:focus-visible {
    background: var(--bs-secondary-bg);
}

.navbar .nav-link.active {
    background: var(--bs-primary-bg-subtle);
    color: var(--bs-primary-text-emphasis);
    font-weight: 500;
}

.user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background: var(--bs-primary);
    color: #fff;
    font-size: 0.85rem;
    font-weight: 600;
}

/* --------------------------------------------------------------- Tema */

.theme-icon-light { display: inline-block; }
.theme-icon-dark { display: none; }
[data-bs-theme="dark"] .theme-icon-light { display: none; }
[data-bs-theme="dark"] .theme-icon-dark { display: inline-block; }

/* --------------------------------------------------------------- Cards */

.card {
    border: 1px solid var(--bs-border-color-translucent);
    border-radius: var(--mdm-radius);
    box-shadow: var(--mdm-shadow-sm);
    transition: box-shadow var(--mdm-transition), transform var(--mdm-transition);
}

.card.card-hoverable:hover {
    box-shadow: var(--mdm-shadow);
    transform: translateY(-1px);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--bs-border-color-translucent);
    font-weight: 600;
}

/* ------------------------------------------------------------ Tablas */

.table {
    --bs-table-bg: transparent;
    font-size: 0.9rem;
    vertical-align: middle;
}

.table thead th {
    border-bottom: 1px solid var(--bs-border-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    color: var(--bs-secondary-color);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
}

.table tbody tr {
    transition: background-color var(--mdm-transition);
}

.table tbody tr:hover {
    background: var(--bs-secondary-bg);
}

/* Table en "tarjetas" en móvil */
@media (max-width: 575.98px) {
    .table-stack thead { display: none; }
    .table-stack tr {
        display: flex;
        flex-direction: column;
        border: 1px solid var(--bs-border-color);
        border-radius: var(--mdm-radius);
        margin-bottom: 0.75rem;
        padding: 0.5rem 0.75rem;
    }
    .table-stack td {
        display: flex;
        justify-content: space-between;
        gap: 1rem;
        border: 0;
        padding: 0.35rem 0;
    }
    .table-stack td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--bs-secondary-color);
        font-size: 0.75rem;
        text-transform: uppercase;
    }
}

/* ---------------------------------------------------------- Badges */

.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    letter-spacing: 0.02em;
}

/* -------------------------------------------------------- Formularios */

.form-control,
.form-select {
    border-radius: var(--mdm-radius-sm);
    transition: border-color var(--mdm-transition), box-shadow var(--mdm-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.18);
}

/* ---------------------------------------------------------- Botones */

.btn {
    border-radius: var(--mdm-radius-sm);
    font-weight: 500;
    transition: background-color var(--mdm-transition), transform var(--mdm-transition), box-shadow var(--mdm-transition);
}

.btn:active {
    transform: translateY(1px);
}

.btn .bi {
    vertical-align: -0.125em;
}

/* Estado de carga inyectado por JS (data-loading) */
.btn[data-loading="true"] {
    pointer-events: none;
    opacity: 0.75;
    position: relative;
}

.btn[data-loading="true"]::after {
    content: "";
    display: inline-block;
    width: 0.9em;
    height: 0.9em;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    margin-left: 0.45rem;
    animation: mdm-spin 0.7s linear infinite;
    vertical-align: -0.15em;
}

@keyframes mdm-spin {
    to { transform: rotate(360deg); }
}

/* ----------------------------------------------------------- Login */

.auth-shell {
    background: radial-gradient(1200px 600px at 20% 0%, var(--bs-primary-bg-subtle), transparent 60%),
                radial-gradient(900px 500px at 90% 100%, var(--bs-info-bg-subtle), transparent 60%),
                var(--bs-body-bg);
}

.auth-card {
    width: 100%;
    max-width: 28rem;
    border-radius: calc(var(--mdm-radius) + 0.25rem);
}

/* ------------------------------------------------------------- Empty */

.empty-state {
    background: var(--bs-body-bg);
    border-radius: var(--mdm-radius);
}

/* ------------------------------------------------------------ Footer */

.app-footer {
    border-top: 1px solid var(--bs-border-color-translucent);
    margin-top: 3rem;
    flex-shrink: 0;
}

/* --------------------------------------------------------- Scrollbar */

@media (hover: hover) {
    ::-webkit-scrollbar {
        width: 10px;
        height: 10px;
    }
    ::-webkit-scrollbar-track {
        background: transparent;
    }
    ::-webkit-scrollbar-thumb {
        background: var(--bs-border-color);
        border-radius: 10px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: var(--bs-secondary-color);
    }
}

/* ------------------------------------------------------- Utilidades */

.hover-underline:hover { text-decoration: underline; }

.text-monospace, .font-monospace {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.25rem 0.55rem;
    border-radius: 999px;
    background: var(--bs-secondary-bg);
    color: var(--bs-body-color);
    font-size: 0.78rem;
}

/* -------------------------------------------------------- A11y focus */

:focus-visible {
    outline: 2px solid var(--bs-primary);
    outline-offset: 2px;
    border-radius: var(--mdm-radius-sm);
}

/* --------------------------------------------------------- Impresión */

@media print {
    .navbar, .app-footer, .btn, .no-print { display: none !important; }
    main { padding: 0 !important; }
}