/* =========================================================
   Sistema de Registro de Equipos — Diseño minimalista
   ========================================================= */

:root {
    --bg: #f7f7f8;
    --panel: #ffffff;
    --borde: #e6e6ea;
    --texto: #1c1c1e;
    --texto-suave: #6b6b76;
    --primario: #2f2f38;
    --primario-hover: #45454f;
    --acento: #4361ee;
    --exito: #16a34a;
    --exito-bg: #e9f9ef;
    --peligro: #dc2626;
    --peligro-bg: #fdecec;
    --radio: 12px;
    --sombra: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --sombra-modal: 0 20px 50px rgba(0,0,0,0.18);
}

* { box-sizing: border-box; }

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--texto);
    font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}

h1, h2 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }

/* ---------- Login ---------- */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(180deg, #fafafb 0%, #f0f0f3 100%);
}

.login-card {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 40px 32px;
    width: 100%;
    max-width: 380px;
    text-align: center;
    box-shadow: var(--sombra);
}

.login-icon { font-size: 42px; margin-bottom: 8px; }
.login-card h1 { font-size: 20px; margin-bottom: 4px; }
.login-sub { color: var(--texto-suave); font-size: 14px; margin: 0 0 24px; }

.login-form { display: flex; flex-direction: column; gap: 16px; text-align: left; }

.login-form label, .modal-form label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 13px;
    color: var(--texto-suave);
    font-weight: 500;
}

.login-form small, .modal-form small { color: var(--texto-suave); font-weight: 400; }

input, select, textarea {
    font-family: inherit;
    font-size: 14px;
    padding: 10px 12px;
    border: 1px solid #d5d5db;
    border-radius: 8px;
    background: #fafafb;
    color: var(--texto);
    outline: none;
    transition: border-color .15s ease, background .15s ease;
    width: 100%;
}

select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b6b76' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px;
    padding-right: 36px;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--acento);
    background: #fff;
}

/* ---------- Botones ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 8px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s ease, transform .05s ease;
    white-space: nowrap;
}

.btn:active { transform: scale(0.98); }

.btn-primario { background: var(--primario); color: #fff; }
.btn-primario:hover { background: var(--primario-hover); }

.btn-secundario { background: #eee; color: var(--texto); }
.btn-secundario:hover { background: #e2e2e6; }

.btn-peligro { background: var(--peligro); color: #fff; }
.btn-peligro:hover { background: #b91c1c; }

.btn-full { width: 100%; }

.btn-salir {
    background: transparent;
    border: 1px solid var(--borde);
    color: var(--texto-suave);
    padding: 7px 14px;
    font-size: 13px;
    text-decoration: none;
}
.btn-salir:hover { background: #f2f2f4; }

.btn-icono {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 6px 8px;
    border-radius: 6px;
}
.btn-icono:hover { background: #f0f0f3; }
.btn-icono-peligro:hover { background: var(--peligro-bg); }

/* ---------- Navbar ---------- */
.navbar {
    background: var(--panel);
    border-bottom: 1px solid var(--borde);
    max-width: 100%;
}

.navbar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    max-width: 1180px;
    margin: 0 auto;
    padding: 14px 24px;
}

.navbar-marca {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 16px;
}
.navbar-icono { font-size: 20px; }

.navbar-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--borde);
    border-radius: 8px;
    font-size: 18px;
    line-height: 1;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--texto);
}
.navbar-toggle:hover { background: #f2f2f4; }

.navbar-colapsable {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px 14px;
}

.navbar-links { display: flex; flex-wrap: wrap; gap: 4px; }
.navbar-links a {
    text-decoration: none;
    color: var(--texto-suave);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 14px;
    border-radius: 8px;
    transition: background .15s ease;
}
.navbar-links a:hover { background: #f2f2f4; }
.navbar-links a.activo { background: var(--primario); color: #fff; }

.navbar-usuario {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}
.navbar-nombre { color: var(--texto-suave); }

.badge-rol {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
}
.badge-superadmin { background: #fef3c7; color: #92400e; }
.badge-admin { background: #eef2ff; color: #4338ca; }
.badge-visor { background: #f1f5f9; color: #475569; }

/* ---------- Contenedor / cabecera ---------- */
.contenedor {
    max-width: 1180px;
    margin: 0 auto;
    padding: 28px 24px 60px;
    width: 100%;
}

.cabecera-pagina {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.cabecera-pagina h1 { font-size: 22px; }
.subtitulo { color: var(--texto-suave); font-size: 14px; margin: 4px 0 0; }

.cabecera-botones {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ---------- Base de datos (backup/restaurar) ---------- */
.tarjeta-bd {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--sombra);
}
.tarjeta-bd h2 { font-size: 16px; margin-bottom: 6px; }
.tarjeta-bd .texto-suave { margin: 0 0 14px; }

.tarjeta-peligro { border-color: #fca5a5; }

.texto-suave { color: var(--texto-suave); font-size: 14px; line-height: 1.5; }

.form-restaurar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.form-restaurar input[type="file"] { flex: 1; min-width: 220px; }

.resultado-carga {
    margin-top: 14px;
    font-size: 13px;
    color: var(--peligro);
    max-height: 160px;
    overflow-y: auto;
}

/* ---------- Filtros ---------- */
.panel-filtros {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: thin;
    overflow-anchor: none;
    max-width: 100%;
}
.panel-filtros::-webkit-scrollbar { height: 6px; }
.panel-filtros::-webkit-scrollbar-thumb { background: var(--borde); border-radius: 999px; }

.panel-filtros input,
.panel-filtros select {
    flex: 0 0 auto;
    width: auto;
}
.panel-filtros input#buscador {
    flex: 1 1 220px;
    min-width: 180px;
}
.panel-filtros select {
    min-width: 170px;
}
.btn-limpiar {
    flex-shrink: 0;
    background: transparent;
    border: 1px solid var(--borde);
    color: var(--texto-suave);
    white-space: nowrap;
}
.btn-limpiar:hover { background: #f2f2f4; color: var(--texto); }

/* ---------- Tabla ---------- */
.tabla-wrap {
    background: var(--panel);
    border: 1px solid var(--borde);
    border-radius: var(--radio);
    overflow-x: auto;
    box-shadow: var(--sombra);
    scrollbar-width: thin;
    overflow-anchor: none;
}
.tabla-wrap::-webkit-scrollbar { height: 8px; }
.tabla-wrap::-webkit-scrollbar-thumb { background: #c7c7cf; border-radius: 999px; }
.tabla-wrap::-webkit-scrollbar-track { background: #f0f0f3; }

.tabla { width: 100%; border-collapse: collapse; font-size: 14px; }

.tabla thead th,
.tabla tbody td {
    white-space: nowrap;
}

.pista-scroll {
    display: none;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--texto-suave);
    margin: 8px 2px 0;
}

.tabla thead th {
    text-align: left;
    background: #fafafb;
    color: var(--texto-suave);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .04em;
    padding: 12px 16px;
    border-bottom: 1px solid var(--borde);
}

.tabla tbody td {
    padding: 13px 16px;
    border-bottom: 1px solid #f0f0f3;
    vertical-align: middle;
}
.tabla tbody tr:last-child td { border-bottom: none; }
.tabla tbody tr:hover { background: #fafafb; }

.tabla code {
    background: #f1f1f4;
    padding: 2px 6px;
    border-radius: 5px;
    font-size: 13px;
}

.col-observacion { max-width: 220px; color: var(--texto-suave); white-space: normal; word-break: break-word; }
.col-acciones { white-space: nowrap; text-align: right; }

.celda-vacia {
    text-align: center;
    padding: 40px 16px;
    color: var(--texto-suave);
}

/* ---------- Paginación ---------- */
.paginacion {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
}

.paginacion-botones {
    display: flex;
    gap: 10px;
    width: 100%;
    max-width: 300px;
}

.btn-paginacion {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex: 1;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid var(--borde);
    background: var(--panel);
    color: var(--texto);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background .15s ease;
}
.btn-paginacion:hover:not(:disabled) { background: #f2f2f4; }
.btn-paginacion:disabled { opacity: .4; cursor: default; }

.paginacion-info {
    font-size: 13px;
    color: var(--texto-suave);
    text-align: center;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 999px;
}
.chip-activo { background: var(--exito-bg); color: var(--exito); }
.chip-inactivo { background: var(--peligro-bg); color: var(--peligro); }

/* ---------- Alertas ---------- */
.alerta {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 16px;
}
.alerta-error { background: var(--peligro-bg); color: var(--peligro); }

/* ---------- Modal ---------- */
.modal-fondo {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(20,20,24,0.45);
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 100;
}
.modal-fondo.modal-visible { display: flex; }

.modal-caja {
    background: var(--panel);
    border-radius: var(--radio);
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--sombra-modal);
}

.modal-cabecera {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--borde);
}
.modal-cabecera h2 { font-size: 17px; }

.modal-cerrar {
    background: transparent;
    border: none;
    font-size: 15px;
    cursor: pointer;
    color: var(--texto-suave);
    padding: 4px;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 20px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.modal-acciones {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 6px;
}

/* ---------- Toast ---------- */
.toast {
    position: fixed;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primario);
    color: #fff;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 14px;
    box-shadow: var(--sombra-modal);
    transition: bottom .25s ease;
    z-index: 200;
}
.toast-visible { bottom: 24px; }
.toast-exito { background: #16a34a; }
.toast-error { background: #dc2626; }

/* ---------- Responsivo ---------- */
@media (max-width: 860px) {
    .grid-2 { grid-template-columns: 1fr; }

    .tabla-wrap {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .tabla { width: max-content; min-width: 100%; }
    .col-observacion { max-width: 200px; }
    .pista-scroll { display: flex; }

    .navbar-toggle { display: inline-flex; }

    .navbar-colapsable {
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        margin-top: 14px;
        padding-top: 14px;
        border-top: 1px solid var(--borde);
    }
    .navbar.abierto .navbar-colapsable { display: flex; }

    .navbar-links { flex-direction: column; gap: 2px; }
    .navbar-links a { padding: 10px 12px; }

    .navbar-usuario {
        flex-wrap: wrap;
        justify-content: space-between;
        padding-top: 10px;
        margin-top: 6px;
        border-top: 1px solid var(--borde);
    }
    .btn-salir { margin-left: auto; }
}

@media (max-width: 560px) {
    .navbar { padding: 12px 16px; }
    .contenedor { padding: 20px 14px 50px; }
    .cabecera-pagina { flex-direction: column; }

    .modal-fondo { padding: 14px; align-items: flex-start; padding-top: 40px; }
    .modal-caja { max-width: 100%; }
    .modal-acciones { flex-direction: column-reverse; }
    .modal-acciones .btn { width: 100%; }
}