:root {
    --primary-color: #0284c7;
    --primary-dark: #0369a1;
    --bg-page: #f1f5f9;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #cbd5e1;
    --error: #e11d48;
    --error-bg: #fff1f2;
    --success: #16a34a;
    --success-bg: #f0fdf4;
    --info-bg: #eff6ff;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-page);
    color: var(--text-main);
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* Base Móvil (Mobile First) */
.form-container {
    background: var(--bg-card);
    width: 100%;
    max-width: 760px;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

h2 {
    font-size: 1.4rem;
    color: var(--primary-dark);
    margin-bottom: 6px;
}

.subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.cupos-info {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.cupo-badge {
    font-size: 0.78rem;
    font-weight: 600;
    padding: 6px 10px;
    border-radius: 20px;
    background-color: var(--info-bg);
    color: var(--primary-dark);
}

.cupo-badge.agotado {
    background-color: var(--error-bg);
    color: var(--error);
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="tel"],
select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    background-color: #fff;
    outline: none;
    transition: all 0.2s ease;
}

input:focus, select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.15);
}

/* Radio buttons específicos */
.radio-group {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    padding: 8px 0;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    cursor: pointer;
}

.radio-label input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.radio-label input:disabled + * ,
.radio-label:has(input:disabled) {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Celular con prefijo fijo */
.phone-input {
    display: flex;
    align-items: stretch;
    gap: 8px;
}

.phone-prefix {
    display: flex;
    align-items: center;
    padding: 0 12px;
    background-color: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-weight: 600;
    color: var(--text-muted);
    white-space: nowrap;
}

.phone-input input {
    flex: 1;
}

/* Checkbox de política de privacidad */
.form-group-checkbox {
    background-color: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    margin-bottom: 0;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
    min-width: 18px;
    margin-top: 2px;
    accent-color: var(--primary-color);
}

.checkbox-label a {
    color: var(--primary-color);
    font-weight: 600;
}

.hint-text {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Sugerencia de corrección de correo */
.suggestion-message {
    display: none;
    font-size: 0.82rem;
    color: var(--primary-dark);
    margin-top: 6px;
}

.suggestion-message button {
    background: none;
    border: none;
    padding: 0;
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: underline;
    cursor: pointer;
    font-size: 0.82rem;
}

/* Estado de Error */
input.invalid, select.invalid {
    border-color: var(--error);
    background-color: var(--error-bg);
}

.form-group.invalid .phone-prefix {
    border-color: var(--error);
}

.error-message {
    display: none;
    color: var(--error);
    font-size: 0.8rem;
    margin-top: 4px;
    font-weight: 500;
}

/* Mostrar error cuando la clase 'invalid' esté presente en el contenedor o elemento */
input.invalid ~ .error-message,
select.invalid ~ .error-message,
.form-group.invalid .error-message {
    display: block;
}

.form-status {
    margin-top: 14px;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
}

.form-status.success {
    color: var(--success);
}

.form-status.error {
    color: var(--error);
}

button {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s;
    margin-top: 10px;
}

button:hover {
    background-color: var(--primary-dark);
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Ajustes Escalados para Pantallas Grandes (Tablets / Desktop) */
@media (min-width: 768px) {
    body {
        padding: 40px 20px;
    }
    .form-container {
        padding: 36px;
    }
    h2 {
        font-size: 1.7rem;
    }
}

.sin-eventos {
    background-color: var(--info-bg);
    color: var(--primary-dark);
    border-radius: 8px;
    padding: 14px;
    font-size: 0.9rem;
    text-align: center;
}

.evento-cargando {
    text-align: center;
    color: var(--text-muted);
    padding: 20px 0;
    font-size: 0.9rem;
}

.evento-detalle {
    margin-bottom: 24px;
    padding: 20px;
    background: var(--info-bg);
    border-radius: 10px;
}

.evento-detalle h2 {
    font-size: 1.5rem;
    line-height: 1.3;
    color: var(--primary-dark);
    margin-bottom: 10px;
    text-align: center;
}

.evento-fecha {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.evento-lugar {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.evento-lugar a {
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: underline;
}

.acciones-programa {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.btn-programa {
    background: var(--bg-card);
    border: 1.5px solid var(--primary-color);
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    padding: 10px 18px;
    border-radius: 8px;
    display: inline-block;
    text-decoration: none;
    transition: background-color 0.2s, color 0.2s;
}

.btn-programa:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-pdf {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
}

.btn-pdf:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.lista-programa {
    margin: 14px 0 0 0;
    padding: 16px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.88rem;
    color: var(--text-main);
    list-style: none;
}

.lista-programa li { margin-bottom: 4px; }

.login-perfil {
    background-color: var(--info-bg);
    border-radius: 8px;
    padding: 14px;
    margin-bottom: 20px;
}

.login-perfil .admin-subtitle {
    font-size: 0.85rem;
    color: var(--primary-dark);
    margin-bottom: 10px;
}

#formLogin {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

#formLogin input {
    flex: 1;
    min-width: 200px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
}

#formLogin button {
    width: auto;
    margin-top: 0;
    padding: 10px 16px;
    font-size: 0.85rem;
}

.resultado-checkin { font-size: 0.85rem; font-weight: 600; margin-top: 8px; }
.resultado-checkin.exito { color: var(--success); }
.resultado-checkin.error { color: var(--error); }

.perfil-cargado {
    background-color: var(--success-bg);
    color: var(--success);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.logo-evento {
    display: block;
    max-width: 220px;
    max-height: 100px;
    width: auto;
    height: auto;
    margin: 0 auto 10px auto;
    text-align: center;
}

.pie-logos-evento {
    display: block;
    max-width: 100%;
    margin: 20px auto 0 auto;
    border-top: 1px solid var(--border);
    padding-top: 16px;
}

.evento-epigrafe {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 2px;
}

.lista-leyenda {
    list-style: none;
    margin: 8px 0;
}

.lista-leyenda li {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary-dark);
}

.programa-titulo {
    list-style: none;
    font-weight: 700;
    margin-top: 10px;
}

.programa-descripcion {
    list-style: none;
    font-style: italic;
    color: var(--text-muted);
    margin: 2px 0;
}

.programa-expositor {
    list-style: none;
    font-weight: 700;
    margin: 2px 0 6px 0;
}

.programa-titulo:first-child {
    margin-top: 0;
}

.programa-simple {
    list-style: disc;
    margin-left: 20px;
    margin-bottom: 4px;
}

.pregunta-autocompletar {
    background-color: var(--info-bg);
    border-radius: 10px;
    padding: 18px;
    margin-bottom: 20px;
    text-align: center;
}

.pregunta-autocompletar p {
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.botones-pregunta {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.botones-pregunta button {
    width: auto;
    margin-top: 0;
    padding: 10px 18px;
    font-size: 0.88rem;
}

#btnNoAutocompletar {
    background-color: var(--bg-card);
    color: var(--primary-dark);
    border: 1.5px solid var(--primary-color);
}

#btnNoAutocompletar:hover {
    background-color: var(--info-bg);
}


/* Aviso de perfil autocompletado + salida para equipos compartidos. */
.perfil-cargado {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.btn-no-soy-yo {
    background: none;
    border: 1px solid currentColor;
    border-radius: 6px;
    padding: 5px 10px;
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    color: inherit;
}

.btn-no-soy-yo:hover { opacity: 0.75; }

/* Campo con el RUT enmascarado: se limpia al hacer foco para escribirlo. */
input.rut-enmascarado {
    letter-spacing: 0.06em;
    color: #64748b;
}


/* Consentimiento de tratamiento de datos personales. */
.bloque-privacidad {
    border-top: 1px solid #e2e8f0;
    padding-top: 16px;
    margin-top: 4px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    line-height: 1.45;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
}

.checkbox-label a { text-decoration: underline; }