/* ==========================================================================
   MarIA Design System
   Capa global de tokens y componentes. Se carga después de style.css y antes
   de los estilos específicos de cada módulo.
   ========================================================================== */

:root {
    color-scheme: light;

    /* Color semántico: contrastes validados para texto sobre superficies claras. */
    --ui-primary-50: #eef5ff;
    --ui-primary-100: #d9e8ff;
    --ui-primary-500: #1768e5;
    --ui-primary-600: #0b57d0;
    --ui-primary-700: #0842a0;
    --ui-primary-900: #0b2748;
    --ui-secondary-600: #475569;
    --ui-secondary-700: #334155;
    --ui-success-50: #ecfdf3;
    --ui-success-700: #087443;
    --ui-warning-50: #fff8e1;
    --ui-warning-800: #7a4e00;
    --ui-danger-50: #fff1f0;
    --ui-danger-700: #b42318;
    --ui-info-50: #ecfeff;
    --ui-info-700: #0e6674;

    --ui-background: #f3f6fa;
    --ui-surface: #ffffff;
    --ui-surface-muted: #f8fafc;
    --ui-surface-raised: #ffffff;
    --ui-text: #172033;
    --ui-text-muted: #526176;
    --ui-border: #d8e1ec;
    --ui-border-strong: #b8c5d6;

    /* Escala espacial de 4 px. */
    --ui-space-1: .25rem;
    --ui-space-2: .5rem;
    --ui-space-3: .75rem;
    --ui-space-4: 1rem;
    --ui-space-5: 1.25rem;
    --ui-space-6: 1.5rem;
    --ui-space-8: 2rem;
    --ui-space-10: 2.5rem;
    --ui-space-12: 3rem;

    --ui-radius-sm: .5rem;
    --ui-radius-md: .75rem;
    --ui-radius-lg: 1rem;
    --ui-radius-xl: 1.25rem;
    --ui-shadow-sm: 0 1px 2px rgba(11, 39, 72, .06);
    --ui-shadow-md: 0 8px 24px rgba(11, 39, 72, .08);
    --ui-shadow-lg: 0 18px 48px rgba(11, 39, 72, .12);
    --ui-focus-ring: 0 0 0 .22rem rgba(11, 87, 208, .25);
    --ui-content-max: 100rem;
    --ui-transition: 160ms ease;

    /* Compatibilidad temporal con los nombres existentes. */
    --maria-primary: var(--ui-primary-600);
    --maria-primary-dark: var(--ui-primary-700);
    --maria-ink: var(--ui-text);
    --maria-muted: var(--ui-text-muted);
    --maria-surface: var(--ui-surface);
    --maria-surface-soft: var(--ui-surface-muted);
    --maria-border: var(--ui-border);
    --maria-radius: var(--ui-radius-lg);
    --maria-radius-sm: var(--ui-radius-md);
    --maria-shadow: var(--ui-shadow-md);
    --maria-focus: var(--ui-focus-ring);
}

html {
    scroll-behavior: smooth;
    text-size-adjust: 100%;
}

body {
    background: var(--ui-background);
    color: var(--ui-text);
    font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.55;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--ui-text);
    font-weight: 700;
    line-height: 1.2;
    text-wrap: balance;
}

p, li, td, th, label, input, select, textarea, button {
    text-wrap: pretty;
}

a {
    color: var(--ui-primary-600);
    text-underline-offset: .18em;
}

a:hover {
    color: var(--ui-primary-700);
}

.ui-skip-link {
    position: fixed;
    inset: var(--ui-space-3) auto auto var(--ui-space-3);
    z-index: 2000;
    padding: var(--ui-space-3) var(--ui-space-4);
    border-radius: var(--ui-radius-md);
    background: var(--ui-primary-900);
    color: #fff;
    font-weight: 700;
    text-decoration: none;
    transform: translateY(-160%);
    transition: transform var(--ui-transition);
}

.ui-skip-link:focus {
    color: #fff;
    transform: translateY(0);
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 3px solid rgba(11, 87, 208, .38);
    outline-offset: 2px;
}

::selection {
    background: var(--ui-primary-100);
    color: var(--ui-primary-900);
}

/* Layout y contenedores --------------------------------------------------- */
.app-content {
    width: min(100%, var(--ui-content-max));
    margin-inline: auto;
    padding: clamp(var(--ui-space-3), 2vw, var(--ui-space-8));
}

/* El layout ya aporta el ancho y el padding. El workspace debe ocupar todo
   el canvas disponible, sin crear un segundo contenedor centrado. */
.app-content > .chat-workspace,
.app-content > .chat-page-shell {
    width: 100%;
    max-width: none;
    margin-inline: 0;
}

.app-content > .chat-workspace {
    padding: 0;
}

.app-content > .chat-page-shell > .chat-workspace {
    max-width: none;
    margin-inline: 0;
}

.app-content > .chat-workspace .chat-layout {
    grid-template-columns: minmax(260px, 22rem) minmax(0, 1fr);
}

.ui-page {
    width: 100%;
    display: grid;
    gap: clamp(var(--ui-space-4), 2vw, var(--ui-space-6));
}

.ui-page-header {
    display: flex;
    flex-direction: column;
    gap: var(--ui-space-4);
    padding: clamp(var(--ui-space-5), 3vw, var(--ui-space-8));
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-xl);
    background:
        radial-gradient(circle at 95% 0%, rgba(23, 104, 229, .12), transparent 32%),
        linear-gradient(135deg, var(--ui-surface), #f6f9ff);
    box-shadow: var(--ui-shadow-md);
}

.ui-page-header__content {
    min-width: 0;
    max-width: 52rem;
}

.ui-page-header__eyebrow {
    display: block;
    margin-bottom: var(--ui-space-2);
    color: var(--ui-primary-700);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.ui-page-header__title {
    margin: 0;
    font-size: clamp(1.65rem, 4vw, 2.35rem);
    letter-spacing: -.035em;
}

.ui-page-header__description {
    max-width: 70ch;
    margin: var(--ui-space-2) 0 0;
    color: var(--ui-text-muted);
}

.ui-page-header__actions,
.ui-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--ui-space-2);
    align-items: center;
}

.ui-section {
    display: grid;
    gap: var(--ui-space-4);
}

.ui-section-header {
    display: flex;
    flex-direction: column;
    gap: var(--ui-space-2);
}

.ui-section-header__title {
    margin: 0;
    font-size: 1.1rem;
}

.ui-section-header__description {
    margin: 0;
    color: var(--ui-text-muted);
    font-size: .925rem;
}

/* Cards ------------------------------------------------------------------ */
.ui-card,
body.layout-with-sidebar .card {
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    background: var(--ui-surface-raised);
    box-shadow: var(--ui-shadow-sm);
}

.ui-card {
    overflow: clip;
}

.ui-card__header,
body.layout-with-sidebar .card-header {
    padding: var(--ui-space-4) var(--ui-space-5);
    border-bottom: 1px solid var(--ui-border);
    background: var(--ui-surface);
}

.ui-card__body,
body.layout-with-sidebar .card-body {
    padding: clamp(var(--ui-space-4), 2vw, var(--ui-space-6));
}

.ui-card__footer,
body.layout-with-sidebar .card-footer {
    padding: var(--ui-space-4) var(--ui-space-5);
    border-top: 1px solid var(--ui-border);
    background: var(--ui-surface-muted);
}

.ui-stat {
    height: 100%;
    padding: var(--ui-space-5);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    background: var(--ui-surface);
    box-shadow: var(--ui-shadow-sm);
}

.ui-stat__label {
    color: var(--ui-text-muted);
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.ui-stat__value {
    margin-top: var(--ui-space-2);
    color: var(--ui-primary-900);
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-weight: 800;
    line-height: 1;
}

/* Botones ---------------------------------------------------------------- */
.btn,
.ui-button {
    --ui-button-bg: var(--ui-surface);
    --ui-button-border: var(--ui-border-strong);
    --ui-button-color: var(--ui-secondary-700);
    min-height: 2.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--ui-space-2);
    border-color: var(--ui-button-border);
    border-radius: var(--ui-radius-md);
    background: var(--ui-button-bg);
    color: var(--ui-button-color);
    font-weight: 700;
    line-height: 1.2;
    transition: background-color var(--ui-transition), border-color var(--ui-transition), color var(--ui-transition), box-shadow var(--ui-transition), transform var(--ui-transition);
}

.btn:hover,
.ui-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--ui-shadow-sm);
}

.btn:active,
.ui-button:active {
    transform: translateY(0);
}

.btn-primary,
.ui-button--primary {
    --ui-button-bg: var(--ui-primary-600);
    --ui-button-border: var(--ui-primary-600);
    --ui-button-color: #fff;
}

.btn-primary:hover,
.btn-primary:focus-visible,
.ui-button--primary:hover,
.ui-button--primary:focus-visible {
    border-color: var(--ui-primary-700);
    background: var(--ui-primary-700);
    color: #fff;
}

.btn-outline-primary,
.ui-button--secondary {
    border-color: #8eb4eb;
    background: var(--ui-surface);
    color: var(--ui-primary-700);
}

.btn-outline-primary:hover,
.ui-button--secondary:hover {
    border-color: var(--ui-primary-600);
    background: var(--ui-primary-50);
    color: var(--ui-primary-700);
}

.btn-outline-danger,
.ui-button--danger {
    border-color: #e8aaa5;
    background: var(--ui-surface);
    color: var(--ui-danger-700);
}

.btn-outline-danger:hover,
.ui-button--danger:hover {
    border-color: var(--ui-danger-700);
    background: var(--ui-danger-50);
    color: var(--ui-danger-700);
}

.btn:disabled,
.ui-button:disabled,
.ui-button[aria-disabled="true"] {
    box-shadow: none;
    cursor: not-allowed;
    opacity: .58;
    transform: none;
}

.btn-sm {
    min-height: 2.25rem;
}

/* Formularios ------------------------------------------------------------ */
.form-label {
    margin-bottom: var(--ui-space-2);
    color: var(--ui-secondary-700);
    font-size: .9rem;
    font-weight: 700;
}

.form-control,
.form-select {
    min-height: 2.75rem;
    border-color: var(--ui-border-strong);
    border-radius: var(--ui-radius-md);
    background-color: var(--ui-surface);
    color: var(--ui-text);
}

.form-control::placeholder {
    color: #75849a;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--ui-primary-600);
    box-shadow: var(--ui-focus-ring);
}

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

.ui-field-group {
    margin: 0;
    padding: var(--ui-space-5);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
}

.ui-field-group legend {
    float: none;
    width: auto;
    margin: 0 0 var(--ui-space-3);
    padding: 0 var(--ui-space-2);
    font-size: 1rem;
    font-weight: 700;
}

/* Tablas ----------------------------------------------------------------- */
.ui-table-wrap,
.table-responsive {
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    background: var(--ui-surface);
    overflow: auto;
    scrollbar-gutter: stable;
}

.table {
    --bs-table-bg: transparent;
    --bs-table-hover-bg: var(--ui-primary-50);
    margin: 0;
    color: var(--ui-text);
    vertical-align: middle;
}

.table caption {
    color: var(--ui-text-muted);
}

.table thead th {
    padding: .85rem 1rem;
    border-bottom: 1px solid var(--ui-border-strong);
    background: var(--ui-surface-muted);
    color: var(--ui-secondary-700);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .045em;
    text-transform: uppercase;
    white-space: nowrap;
}

.table tbody td,
.table tbody th {
    padding: .9rem 1rem;
    border-bottom-color: #e8edf4;
}

.table tbody tr:last-child > * {
    border-bottom: 0;
}

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

.ui-table-actions {
    display: inline-flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: var(--ui-space-2);
}

/* Estados y feedback ----------------------------------------------------- */
.ui-status {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    min-height: 1.7rem;
    padding: .2rem .6rem;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: .78rem;
    font-weight: 800;
    line-height: 1.2;
}

.ui-status--success { border-color: #a7e2c1; background: var(--ui-success-50); color: var(--ui-success-700); }
.ui-status--warning { border-color: #ecd28d; background: var(--ui-warning-50); color: var(--ui-warning-800); }
.ui-status--danger { border-color: #efb4af; background: var(--ui-danger-50); color: var(--ui-danger-700); }
.ui-status--info { border-color: #9edbe3; background: var(--ui-info-50); color: var(--ui-info-700); }
.ui-status--neutral { border-color: var(--ui-border); background: var(--ui-surface-muted); color: var(--ui-secondary-700); }
.ui-status--primary { border-color: #a8c7f3; background: var(--ui-primary-50); color: var(--ui-primary-700); }

.alert,
.ui-alert {
    border-width: 1px;
    border-radius: var(--ui-radius-md);
    box-shadow: none;
}

.ui-empty-state {
    display: grid;
    place-items: center;
    gap: var(--ui-space-3);
    min-height: 15rem;
    padding: var(--ui-space-8);
    text-align: center;
}

.ui-empty-state__icon {
    width: 3.25rem;
    height: 3.25rem;
    display: grid;
    place-items: center;
    border-radius: var(--ui-radius-lg);
    background: var(--ui-primary-50);
    color: var(--ui-primary-700);
    font-size: 1.25rem;
}

.ui-empty-state__title {
    margin: 0;
    font-size: 1.1rem;
}

.ui-empty-state__description {
    max-width: 48ch;
    margin: 0;
    color: var(--ui-text-muted);
}

.ui-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--ui-space-2);
    padding: .35rem .7rem;
    border: 1px solid var(--ui-border);
    border-radius: 999px;
    background: rgba(255, 255, 255, .72);
    color: var(--ui-secondary-700);
    font-size: .825rem;
    font-weight: 650;
}

/* Modal, navegación y shell público ------------------------------------- */
.modal-content {
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-xl);
    box-shadow: var(--ui-shadow-lg);
}

.modal-header,
.modal-footer {
    border-color: var(--ui-border);
    padding: var(--ui-space-4) var(--ui-space-5);
}

.modal-body {
    padding: var(--ui-space-5);
}

#roleModal .modal-body,
#userModal .modal-body {
    max-height: 70dvh;
    overflow-y: auto;
}

#roleModal .modal-content {
    max-height: 90dvh;
}

.ui-public-header {
    min-height: 4.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--ui-space-4);
    padding: var(--ui-space-3) clamp(var(--ui-space-4), 5vw, var(--ui-space-10));
    background: linear-gradient(135deg, var(--ui-primary-900), var(--ui-primary-600));
    box-shadow: var(--ui-shadow-md);
}

.ui-public-brand {
    display: inline-flex;
    align-items: center;
    gap: var(--ui-space-3);
    color: #fff;
    font-weight: 800;
    text-decoration: none;
}

.ui-public-brand:hover { color: #fff; }
.ui-public-brand img { width: 2.65rem; height: 2.65rem; object-fit: contain; border-radius: var(--ui-radius-md); background: #fff; padding: .2rem; }
.ui-public-nav { display: flex; flex-wrap: wrap; gap: var(--ui-space-2); }
.ui-public-nav a { padding: .5rem .7rem; border-radius: var(--ui-radius-sm); color: #fff; font-weight: 650; text-decoration: none; }
.ui-public-nav a:hover, .ui-public-nav a:focus-visible { background: rgba(255, 255, 255, .14); color: #fff; }
.ui-public-main { width: min(100% - 1.5rem, 76rem); margin-inline: auto; padding-block: clamp(var(--ui-space-5), 5vw, var(--ui-space-10)); }

.ui-auth-card {
    width: min(100%, 30rem);
    margin-inline: auto;
    overflow: hidden;
}

@media (min-width: 48rem) {
    .ui-page-header {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }

    .ui-page-header__actions {
        justify-content: flex-end;
    }

    .ui-section-header {
        flex-direction: row;
        align-items: end;
        justify-content: space-between;
    }
}

@media (max-width: 47.99rem) {
    .app-content { padding-inline: var(--ui-space-3); }
    .ui-page-header__actions, .ui-actions { width: 100%; }
    .ui-page-header__actions > .btn, .ui-page-header__actions > .ui-button { flex: 1 1 100%; }
    .ui-public-header { align-items: flex-start; flex-direction: column; }
    .table-responsive { border-radius: var(--ui-radius-md); }
    .modal-dialog { margin: var(--ui-space-2); }
    #roleModal .modal-body, #userModal .modal-body { max-height: 60dvh; }
    .app-content > .chat-workspace .chat-layout { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}

@media (prefers-contrast: more) {
    :root {
        --ui-border: #8796a8;
        --ui-border-strong: #5f6e81;
        --ui-text-muted: #3f4c5e;
    }
}

@media print {
    .app-sidebar, .app-topbar, .ui-page-header__actions, .btn, .ui-button { display: none !important; }
    .app-main { margin: 0 !important; }
    .app-content { max-width: none; padding: 0; }
    .card, .ui-card { box-shadow: none !important; break-inside: avoid; }
}