/* ===================================================================
   Acceso de membership.asx.mx
   Una sola pantalla, sin dependencias externas más allá de la fuente.
   =================================================================== */

:root {
    --ac-verde: #2E7D4F;
    --ac-verde-osc: #1F5C39;
    --ac-texto: #17251C;
    --ac-suave: #5E6E64;
    --ac-linea: #DFE7E1;
    --ac-fondo: #F4F7F4;
    --ac-error: #B3261E;
    --ac-ok: #1F6B3F;
}

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

body.ac {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    font-family: Nunito, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    color: var(--ac-texto);
    background: var(--ac-fondo);
    background-image: radial-gradient(circle at 15% 10%, #E4F0E7 0%, transparent 45%),
                      radial-gradient(circle at 85% 90%, #E8F2EA 0%, transparent 45%);
    line-height: 1.55;
}

.ac-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border-radius: 20px;
    padding: 32px 28px;
    box-shadow: 0 10px 40px rgba(23, 37, 28, .10);
}

.ac-head { text-align: center; margin-bottom: 18px; }
.ac-head img { height: 46px; width: auto; }
.ac-eyebrow {
    margin: 10px 0 0;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--ac-verde);
}

h1 { margin: 0 0 6px; font-size: 24px; line-height: 1.25; text-align: center; }
.ac-copy { margin: 0 0 20px; color: var(--ac-suave); text-align: center; font-size: 14px; }

/* --- Quién invita --- */
.ac-sponsor {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    margin-bottom: 18px;
    padding: 12px;
    border-radius: 12px;
    background: #EAF4EC;
    border: 1px solid #CFE5D5;
}
.ac-sponsor span { font-size: 12px; color: var(--ac-suave); }
.ac-sponsor strong { font-size: 16px; color: var(--ac-verde-osc); }

/* --- Avisos --- */
.ac-alert {
    margin-bottom: 16px;
    padding: 11px 14px;
    border-radius: 10px;
    font-size: 14px;
}
.ac-alert-error { background: #FDECEA; color: var(--ac-error); border: 1px solid #F5C6C0; }
.ac-alert-ok { background: #E9F5EC; color: var(--ac-ok); border: 1px solid #C6E3CF; }

/* --- Formulario --- */
.ac-field { margin-bottom: 14px; }
.ac-field label {
    display: block;
    margin-bottom: 5px;
    font-size: 13px;
    font-weight: 700;
    color: var(--ac-suave);
}
.ac-field input {
    width: 100%;
    padding: 12px 14px;
    font: inherit;
    /* 16px es el mínimo: por debajo, Safari en iOS hace zoom al enfocar el
       campo y descoloca la pantalla. */
    font-size: 16px;
    color: var(--ac-texto);
    background: #fff;
    border: 1px solid var(--ac-linea);
    border-radius: 11px;
}
.ac-field input:focus {
    outline: 2px solid var(--ac-verde);
    outline-offset: -1px;
    border-color: transparent;
}
.ac-field small { display: block; margin-top: 5px; font-size: 12px; color: var(--ac-suave); }

.ac-btn {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 13px 18px;
    font: inherit;
    font-size: 15px;
    font-weight: 800;
    text-align: center;
    text-decoration: none;
    color: #fff;
    background: var(--ac-verde);
    border: 1px solid transparent;
    border-radius: 11px;
    cursor: pointer;
}
.ac-btn:hover:not(:disabled) { background: var(--ac-verde-osc); }
.ac-btn:disabled { opacity: .6; cursor: default; }
.ac-btn-line {
    margin-top: 10px;
    color: var(--ac-verde);
    background: #fff;
    border-color: var(--ac-linea);
}
.ac-btn-line:hover { border-color: var(--ac-verde); background: #F4FAF6; }

.ac-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px 18px;
    margin-top: 18px;
}
.ac-link {
    padding: 4px;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--ac-verde);
    background: none;
    border: 0;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.ac-link:hover { color: var(--ac-verde-osc); }

.ac-session { text-align: center; }
.ac-session .ac-link { margin-top: 14px; }

.ac-foot {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--ac-linea);
    font-size: 12px;
    color: var(--ac-suave);
    text-align: center;
}

:focus-visible { outline: 3px solid var(--ac-verde); outline-offset: 2px; }

@media (max-width: 420px) {
    .ac-card { padding: 26px 20px; border-radius: 16px; }
    h1 { font-size: 21px; }
}

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}