/* ==========================================================================
   PANTALLA DE ACCESO (core/app/layouts/login.php, assets/js/login.js)
   Identidad institucional sobria (mismo azul de la barra lateral) y formulario claro.
   Sin degradados ni efectos de vidrio. En móvil la identidad es una franja superior.
   ========================================================================== */
:root {
    --ac-marca: #1a1d36;
    --ac-acento: #3538cd;
    --ac-acento-hover: #2d31a6;
    --ac-acento-suave: #eef0fb;
    --ac-texto: #101828;
    --ac-texto-2: #475467;
    --ac-texto-3: #667085;
    --ac-borde: #e4e7ec;
    --ac-borde-fuerte: #d0d5dd;
    --ac-fondo: #ffffff;
    --ac-peligro: #b42318;
    --ac-peligro-suave: #fef3f2;
}

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

html, body { height: 100%; }

body {
    margin: 0;
    background: var(--ac-fondo);
    color: var(--ac-texto);
    font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.acceso { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); min-height: 100vh; }

/* ---------- Identidad institucional ---------- */
.acceso-identidad {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 40px;
    padding: 56px 56px 44px;
    background: var(--ac-marca);
    color: #fff;
}
.acceso-marca {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.08);
}
.acceso-marca img { width: 62px; height: 62px; object-fit: contain; border-radius: 50%; }
.acceso-institucion { max-width: 440px; }
.acceso-tipo { margin: 0 0 10px; font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255, 255, 255, 0.62); }
.acceso-nombre { margin: 0; font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; line-height: 1.2; }
.acceso-lugar { margin: 12px 0 0; font-size: 0.9375rem; color: rgba(255, 255, 255, 0.7); }
.acceso-sistema { padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.14); }
.acceso-sistema p { margin: 0; font-size: 0.875rem; color: rgba(255, 255, 255, 0.62); }
.acceso-sistema .acceso-sistema-titulo { margin-bottom: 4px; font-size: 0.9375rem; font-weight: 600; color: #fff; }

/* ---------- Formulario ---------- */
.login-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 48px 32px 28px;
}
.login-caja { width: 100%; max-width: 380px; margin: auto 0; }
.login-header { margin-bottom: 28px; }
.login-header h1 { margin: 0 0 6px; font-size: 1.625rem; font-weight: 700; letter-spacing: -0.02em; color: var(--ac-texto); }
.login-header p { margin: 0; font-size: 0.9375rem; color: var(--ac-texto-3); }

.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 0.875rem; font-weight: 500; color: var(--ac-texto-2); }
.input-icon { position: relative; }
.input-icon .campo-icono {
    position: absolute;
    top: 50%;
    left: 14px;
    width: 18px;
    height: 18px;
    transform: translateY(-50%);
    fill: none;
    stroke: var(--ac-texto-3);
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
    pointer-events: none;
}
.input-icon input.form-control-lg {
    width: 100%;
    height: 46px;
    padding: 0 14px 0 42px;
    border: 1px solid var(--ac-borde-fuerte);
    border-radius: 8px;
    background: #fff;
    color: var(--ac-texto);
    font: inherit;
    font-size: 0.9375rem;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input-icon input.form-control-lg::placeholder { color: #98a2b3; }
.input-icon input.form-control-lg:hover { border-color: #98a2b3; }
.input-icon input.form-control-lg:focus { outline: none; border-color: var(--ac-acento); box-shadow: 0 0 0 4px var(--ac-acento-suave); }
.input-icon:focus-within .campo-icono { stroke: var(--ac-acento); }
.input-icon input.form-control-lg[aria-invalid="true"] { border-color: var(--ac-peligro); box-shadow: 0 0 0 4px var(--ac-peligro-suave); }
.input-icon.has-toggle input.form-control-lg { padding-right: 46px; }
.password-toggle {
    position: absolute;
    top: 50%;
    right: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: var(--ac-texto-3);
    transform: translateY(-50%);
    cursor: pointer;
}
.password-toggle:hover,
.password-toggle:focus-visible { background: #f2f4f7; color: var(--ac-texto); outline: none; }
.password-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.password-toggle .icon-eye-off,
.password-toggle[aria-pressed="true"] .icon-eye { display: none; }
.password-toggle[aria-pressed="true"] .icon-eye-off { display: block; }
.caps-hint { margin: 6px 0 0; font-size: 0.8125rem; color: #b54708; }

.btn-login {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 46px;
    margin-top: 6px;
    border: 1px solid var(--ac-acento);
    border-radius: 8px;
    background: var(--ac-acento);
    color: #fff;
    font: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(16, 24, 40, 0.05);
    cursor: pointer;
    transition: background-color 0.15s ease;
}
.btn-login:hover { border-color: var(--ac-acento-hover); background: var(--ac-acento-hover); }
.btn-login:focus-visible { outline: none; box-shadow: 0 0 0 4px var(--ac-acento-suave); }
.btn-login:disabled { cursor: progress; opacity: 0.85; }
.btn-login-spinner {
    display: none;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: login-giro 0.7s linear infinite;
}
.btn-login.is-loading .btn-login-spinner { display: inline-block; }
@keyframes login-giro { to { transform: rotate(360deg); } }

.login-alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 20px;
    padding: 12px 14px;
    border: 1px solid #fecdca;
    border-radius: 8px;
    background: var(--ac-peligro-suave);
    color: var(--ac-peligro);
    font-size: 0.875rem;
    font-weight: 500;
}
.login-alert[hidden] { display: none; }
.login-alert-icon { flex: 0 0 18px; width: 18px; height: 18px; margin-top: 1px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.login-alert.is-shaking { animation: login-aviso 0.35s ease; }
@keyframes login-aviso { 0%, 100% { transform: none; } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

.login-help { margin: 22px 0 0; font-size: 0.8125rem; line-height: 1.55; color: var(--ac-texto-3); }
.login-footer { width: 100%; max-width: 380px; margin-top: 32px; }
.login-footer p { margin: 0; font-size: 0.75rem; color: #98a2b3; }

/* ---------- Tableta y móvil ---------- */
@media (max-width: 991.98px) {
    .acceso { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto 1fr; }
    .acceso-identidad { flex-direction: row; align-items: center; justify-content: flex-start; gap: 16px; padding: 20px 24px; }
    .acceso-marca { flex: 0 0 52px; width: 52px; height: 52px; box-shadow: none; }
    .acceso-marca img { width: 44px; height: 44px; }
    .acceso-tipo { margin-bottom: 2px; font-size: 0.6875rem; letter-spacing: 0.04em; }
    .acceso-nombre { font-size: 1.125rem; }
    .acceso-lugar,
    .acceso-sistema { display: none; }
    .login-container { justify-content: flex-start; padding: 36px 24px 24px; }
}
@media (max-width: 575.98px) {
    .acceso-identidad { padding: 16px; }
    .acceso-tipo { display: none; }
    .acceso-nombre { font-size: 1rem; }
    .login-container { padding: 28px 16px 20px; }
    .login-caja { margin: 0 0 auto; }
    .login-header h1 { font-size: 1.375rem; }
}
@media (prefers-reduced-motion: reduce) {
    .btn-login-spinner,
    .login-alert.is-shaking { animation: none; }
}