:root {
    --color-bg: #eef6f2;
    --color-surface: #ffffff;
    --color-text: #1a211d;
    --color-muted: #5c6660;
    --color-primary: #0f8b6c;
    --color-primary-dark: #0b3a2e;
    --color-primary-soft: #e3f5ee;
    --color-success: #158049;
    --color-success-soft: #e4f6ec;
    --color-danger: #c0332f;
    --color-danger-soft: #fceceb;
    --color-warning: #a5620a;
    --color-warning-soft: #fdf1e0;
    --color-border: #dde6e1;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(11, 58, 46, 0.06);
    --shadow-md: 0 8px 24px rgba(11, 58, 46, 0.08);
    --shadow-lg: 0 20px 48px rgba(11, 58, 46, 0.16);
}

* {
    box-sizing: border-box;
}

html {
    /* Base más grande que el default del navegador (16px -> 18px) para que
       todo el sitio (que usa rem) escale hacia arriba: varios usuarios
       tienen dificultad para leer letra chica. */
    font-size: 112.5%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background:
        radial-gradient(1100px 520px at 12% -8%, rgba(15, 139, 108, 0.10), transparent 60%),
        radial-gradient(900px 480px at 100% 0%, rgba(11, 58, 46, 0.07), transparent 55%),
        var(--color-bg);
    background-attachment: fixed;
    color: var(--color-text);
    line-height: 1.5;
    letter-spacing: 0.005em;
}

.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 24px 16px 64px;
}

.container-wide {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px 64px;
}

/* Marca: logo + nombre, reutilizada en la barra de admin y en las
   pantallas de acceso (login, OTP, recuperar clave, etc). */
.brand-mark {
    display: block;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(11, 58, 46, 0.25);
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.brand-word {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: inherit;
}

.auth-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 4px 0 22px;
    text-align: center;
}

.auth-brand .brand-mark {
    width: 56px;
    height: 56px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
}

.auth-brand .brand-word {
    font-size: 1.35rem;
}

.auth-brand .brand-tagline {
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-muted);
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 26px;
    margin-bottom: 18px;
    box-shadow: var(--shadow-sm);
}

h1 {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    margin: 0 0 4px;
}

h2 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 16px;
}

p.subtitle {
    color: var(--color-muted);
    margin: 0 0 20px;
    font-size: 1.05rem;
}

label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    margin: 14px 0 6px;
}

.campo-requerido {
    color: var(--color-danger);
    opacity: 0.75;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="datetime-local"],
select,
textarea {
    width: 100%;
    padding: 12px 14px;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="tel"]:focus,
input[type="datetime-local"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(15, 139, 108, 0.15);
}

textarea {
    resize: vertical;
    min-height: 80px;
}

button,
.btn {
    display: inline-block;
    text-align: center;
    width: 100%;
    padding: 15px;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: #fff;
    cursor: pointer;
    margin-top: 18px;
    text-decoration: none;
    min-height: 48px;
    box-shadow: 0 1px 2px rgba(11, 58, 46, 0.12);
    transition: background 0.15s ease, transform 0.05s ease, box-shadow 0.15s ease;
}

button:hover,
.btn:hover {
    background: var(--color-primary-dark);
    box-shadow: 0 6px 16px rgba(11, 58, 46, 0.22);
}

button:active,
.btn:active {
    transform: translateY(1px);
    box-shadow: 0 1px 2px rgba(11, 58, 46, 0.12);
}

.btn-lg {
    padding: 22px;
    font-size: 1.25rem;
}

.btn-success {
    background: var(--color-success);
}

.btn-success:hover {
    background: #0e6339;
}

.btn-danger {
    background: var(--color-danger);
}

.btn-danger:hover {
    background: #9a2724;
}

.btn-secondary {
    background: #4b5468;
}

.btn-secondary:hover {
    background: #363d4d;
}

/* Selector de pestañas (ej. portada: "Solicitar acceso" vs "Accesos"). */
.tabs {
    display: flex;
    gap: 6px;
    background: var(--color-primary-soft);
    border-radius: var(--radius-sm);
    padding: 4px;
    margin: 4px 0 22px;
}

.tab-btn {
    flex: 1;
    width: auto;
    border: none;
    background: transparent;
    color: var(--color-muted);
    font-weight: 700;
    font-size: 0.95rem;
    padding: 10px 12px;
    margin: 0;
    min-height: unset;
    border-radius: calc(var(--radius-sm) - 4px);
    box-shadow: none;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.tab-btn:hover {
    background: rgba(15, 139, 108, 0.12);
    color: var(--color-text);
    box-shadow: none;
}

.tab-btn.is-active {
    background: var(--color-surface);
    color: var(--color-primary-dark);
    box-shadow: var(--shadow-sm);
}

.tab-panel[hidden] {
    display: none;
}

/* Botones chicos dentro de filas de tabla (Guardar/Activar/Desactivar).
   Más grandes que el 0.8rem original: siguen siendo "compactos" respecto
   al botón principal, pero legibles y fáciles de tocar. */
.btn-compact {
    width: auto;
    display: inline-block;
    margin: 0;
    padding: 10px 16px;
    font-size: 0.95rem;
    min-height: 40px;
}

.alert {
    padding: 13px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.5;
    border: 1px solid transparent;
}

.alert-error {
    background: var(--color-danger-soft);
    color: var(--color-danger);
    border-color: rgba(192, 51, 47, 0.18);
}

.alert-success {
    background: var(--color-success-soft);
    color: var(--color-success);
    border-color: rgba(21, 128, 73, 0.18);
}

.alert-info {
    background: var(--color-primary-soft);
    color: var(--color-primary-dark);
    border-color: rgba(15, 139, 108, 0.18);
}

.table-scroll {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Barra de filtros (buscador + selects) sobre una tabla. */
.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: flex-end;
    margin-bottom: 14px;
}

.filter-bar .filter-field {
    flex: 1;
    min-width: 170px;
}

.filter-bar .filter-field label {
    margin: 0 0 6px;
}

.filter-bar .filter-field input,
.filter-bar .filter-field select {
    margin: 0;
}

.filter-bar .filter-count {
    font-size: 0.9rem;
    color: var(--color-muted);
    white-space: nowrap;
    padding-bottom: 12px;
}

/* En mobile una tabla ancha (muchas columnas) sigue siendo ilegible aunque
   tenga scroll horizontal: .table-stack la convierte en una lista de
   tarjetas (una fila = una tarjeta), mostrando la etiqueta de cada columna
   junto a su valor via el atributo data-label de cada <td>. Las celdas con
   formularios/botones de acción usan la clase td-block para apilarse en
   vertical en vez de forzar el layout horizontal etiqueta-valor. */
@media (max-width: 760px) {
    .table-stack table,
    .table-stack tbody,
    .table-stack tr,
    .table-stack td {
        display: block;
        width: 100%;
    }

    .table-stack thead {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .table-stack tbody tr {
        background: #fff;
        border: 1px solid var(--color-border);
        border-radius: var(--radius);
        box-shadow: var(--shadow-sm);
        margin-bottom: 12px;
        padding: 4px 14px;
    }

    .table-stack td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 14px;
        padding: 10px 0;
        border-bottom: 1px solid var(--color-border);
        text-align: right;
    }

    .table-stack td:last-child {
        border-bottom: none;
    }

    .table-stack td::before {
        content: attr(data-label);
        font-weight: 700;
        font-size: 0.78rem;
        text-transform: uppercase;
        letter-spacing: 0.03em;
        color: var(--color-muted);
        text-align: left;
        flex-shrink: 0;
    }

    /* !important: varias celdas de acciones traen su propio style="display:flex/inline"
       para el layout de escritorio (botones en fila) — en mobile siempre debe
       apilarse en bloque, sin depender de que cada página no traiga ese inline style. */
    .table-stack td.td-block {
        display: block !important;
        text-align: left;
    }

    .table-stack td.td-block::before {
        display: block;
        margin-bottom: 8px;
    }

    /* Las celdas de acciones traen varios <form style="display:inline"> con un
       botón cada uno (Desactivar/Restablecer/Eliminar...): en desktop fluyen
       en fila, pero en mobile ese inline-block wrapping los hacía solaparse
       verticalmente. Se fuerzan a bloque, uno por línea y ancho completo. */
    .table-stack td.td-block form {
        display: block !important;
        margin: 0 0 8px;
    }

    .table-stack td.td-block form:last-child {
        margin-bottom: 0;
    }

    .table-stack td.td-block form button {
        width: 100%;
    }

    /* Botones sueltos (fuera de un <form>, asociados via form="id") como el
       "Guardar" de personal.php: mismo trato de bloque + separación. */
    .table-stack td.td-block > button {
        display: block !important;
        width: 100%;
        margin: 0 0 8px;
    }

    .table-stack td.td-block > button:last-child {
        margin-bottom: 0;
    }
}

/* Inputs/selects editables dentro de celdas de tabla: sin esto, en un
   contenedor flex se aplastan a casi 0px. Se deja que la tabla se
   ensanche y sea la .table-scroll la que da el scroll horizontal. */
td input[type="text"],
td select {
    min-width: 140px;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

th, td {
    text-align: left;
    padding: 12px;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
}

th {
    color: var(--color-muted);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

tbody tr {
    transition: background 0.12s ease;
}

tbody tr:hover {
    background: #f7f9fd;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.badge-pendiente { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-aprobado { background: var(--color-success-soft); color: var(--color-success); }
.badge-rechazado { background: var(--color-danger-soft); color: var(--color-danger); }
.badge-expirado { background: #e7e9f2; color: var(--color-muted); }

nav.topnav {
    background: var(--color-primary-dark);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
    box-shadow: 0 2px 12px rgba(11, 58, 46, 0.18);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav.topnav .nav-brand {
    color: #fff;
}

nav.topnav .nav-brand .brand-word {
    color: #fff;
}

nav.topnav .topnav-links {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-wrap: wrap;
    flex: 1;
}

nav.topnav a {
    color: #fff;
    text-decoration: none;
    font-size: 0.98rem;
    font-weight: 500;
    opacity: 0.82;
    transition: opacity 0.15s ease;
}

nav.topnav a:hover {
    opacity: 1;
    text-decoration: underline;
}

nav.topnav .spacer {
    flex: 1;
}

nav.topnav .topnav-toggle {
    display: none;
}

/* Menús desplegables del nav de admin (agrupan varias páginas relacionadas
   bajo un solo título, ej. "Usuarios" contiene Usuarios/Personal/Grupos). */
nav.topnav .nav-group {
    position: relative;
}

nav.topnav .nav-group summary {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    list-style: none;
    cursor: pointer;
    color: #fff;
    font-size: 0.98rem;
    font-weight: 500;
    opacity: 0.82;
    transition: opacity 0.15s ease;
}

nav.topnav .nav-group summary::-webkit-details-marker {
    display: none;
}

nav.topnav .nav-group summary:hover,
nav.topnav .nav-group[open] summary {
    opacity: 1;
}

nav.topnav .nav-group summary::after {
    content: "";
    width: 6px;
    height: 6px;
    margin-top: -3px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.15s ease;
}

nav.topnav .nav-group[open] summary::after {
    margin-top: 3px;
    transform: rotate(-135deg);
}

nav.topnav .nav-group-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    min-width: 190px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 6px;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 10;
}

nav.topnav .nav-group-menu a {
    color: var(--color-text);
    opacity: 1;
    padding: 9px 12px;
    border-radius: 8px;
    font-weight: 500;
}

nav.topnav .nav-group-menu a:hover {
    background: var(--color-primary-soft);
    text-decoration: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Botones de atrás/adelante/recargar: solo tienen sentido cuando el sistema
   corre como app instalada (sin barra del navegador), así que permanecen
   ocultos hasta que app-toolbar.js detecta ese modo y marca <html>. */
.app-toolbar {
    display: none;
    align-items: center;
    gap: 6px;
}

html.is-app-standalone .app-toolbar {
    display: flex;
}

.app-toolbar button {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: #fff;
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
    padding: 0;
}

.app-toolbar button:hover {
    background: rgba(255, 255, 255, 0.2);
}

.app-toolbar button:active {
    background: rgba(255, 255, 255, 0.28);
}

.notif-bell {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.notif-bell .notif-badge {
    position: absolute;
    top: 0;
    right: -2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: var(--color-danger);
    color: #fff;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    line-height: 16px;
    text-align: center;
    box-shadow: 0 0 0 2px var(--color-primary-dark);
}

/* Menú hamburguesa en pantallas angostas: el sistema se usa harto desde el
   celular y una fila de 8 links envueltos ocupaba media pantalla. */
@media (max-width: 760px) {
    nav.topnav .topnav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        margin-left: auto;
        align-self: flex-start;
        flex-shrink: 0;
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.35);
        border-radius: 8px;
        color: #fff;
        font-size: 1.3rem;
        line-height: 1;
        cursor: pointer;
        padding: 0;
    }

    nav.topnav .topnav-links {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 2px;
    }

    nav.topnav .topnav-links.is-open {
        display: flex;
    }

    nav.topnav .topnav-links a {
        padding: 13px 10px;
        border-radius: 8px;
    }

    nav.topnav .topnav-links a:active {
        background: rgba(255, 255, 255, 0.12);
    }

    nav.topnav .spacer {
        display: none;
    }

    nav.topnav .nav-group summary {
        padding: 13px 10px;
        border-radius: 8px;
        opacity: 1;
    }

    nav.topnav .nav-group summary:active {
        background: rgba(255, 255, 255, 0.12);
    }

    nav.topnav .nav-group-menu {
        position: static;
        min-width: 0;
        padding: 0 0 4px 14px;
        background: transparent;
        box-shadow: none;
    }

    nav.topnav .nav-group-menu a {
        color: #fff;
        opacity: 0.82;
        padding: 11px 10px;
    }

    nav.topnav .nav-group-menu a:hover,
    nav.topnav .nav-group-menu a:active {
        opacity: 1;
        background: rgba(255, 255, 255, 0.12);
    }
}

.access-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 14px;
    box-shadow: var(--shadow-sm);
}

.access-card .meta {
    color: var(--color-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 12px;
}

.access-card h3 {
    margin: 0 0 6px;
    font-size: 1.2rem;
    font-weight: 700;
}

.helper-text {
    font-size: 0.9rem;
    color: var(--color-muted);
    margin-top: 6px;
}

/* Widget de ayuda flotante */
.help-fab {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 8px;
    width: auto;
    margin: 0;
    padding: 12px 18px;
    border-radius: 999px;
    background: linear-gradient(135deg, #0f8b6c, var(--color-primary-dark));
    box-shadow: 0 8px 20px rgba(11, 58, 46, 0.35);
    animation: help-fab-bounce 2.4s ease-in-out infinite;
}

.help-fab:hover {
    background: linear-gradient(135deg, #0c6f57, var(--color-primary-dark));
}

.help-fab.is-active {
    animation: none;
}

.help-fab-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.22);
    font-size: 0.95rem;
    font-weight: 800;
    line-height: 1;
}

.help-fab-label {
    font-size: 0.9rem;
}

@keyframes help-fab-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

/* En celular el botón con texto "Ayuda" pegado a la esquina alcanzaba a taparse
   con botones de acción (ej. "Rechazar") en tarjetas anchas. Icono solo y
   centrado abajo, lejos de cualquier botón de esquina. */
@media (max-width: 760px) {
    .help-fab {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
        width: 48px;
        height: 48px;
        padding: 0;
        justify-content: center;
        animation-name: help-fab-bounce-center;
    }

    .help-fab.is-active {
        animation: none;
        transform: translateX(-50%);
    }

    .help-fab-label {
        display: none;
    }

    .help-panel {
        left: 50%;
        right: auto;
        transform: translateX(-50%);
    }
}

@keyframes help-fab-bounce-center {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-6px); }
}

.help-panel {
    position: fixed;
    right: 20px;
    bottom: 88px;
    z-index: 1000;
    width: min(340px, calc(100vw - 40px));
    max-height: min(480px, calc(100vh - 140px));
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.help-panel[hidden] {
    display: none;
}

.help-panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    background: linear-gradient(135deg, #0f8b6c, var(--color-primary-dark));
    color: #fff;
}

.help-panel-header h3 {
    margin: 0 0 2px;
    font-size: 1rem;
}

.help-panel-header p {
    margin: 0;
    font-size: 0.8rem;
    opacity: 0.9;
}

.help-panel-close {
    width: auto;
    margin: 0;
    padding: 2px 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    font-size: 0.9rem;
}

.help-panel-close:hover {
    background: rgba(255, 255, 255, 0.35);
}

.help-panel-body {
    padding: 16px 18px;
    overflow-y: auto;
}

.help-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.help-item:last-of-type {
    border-bottom: none;
}

.help-item h4 {
    margin: 0 0 4px;
    font-size: 0.9rem;
}

.help-item p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--color-muted);
    line-height: 1.4;
}

.help-panel-footer {
    margin: 12px 0 0;
    font-size: 0.8rem;
    color: var(--color-muted);
    text-align: center;
}