/* Estilo compartido de Karaoke Space (gracias.html e informacion.html) */

:root {
    --fondo: #120d2b;
    --fondo-2: #1c1442;
    --tarjeta: rgba(28, 20, 66, 0.86);
    --borde: rgba(255, 255, 255, 0.12);
    --texto: #f4f1ff;
    --suave: #c9c2ea;
    --cian: #2ee6f0;
    --magenta: #ff2fd6;
    --morado: #7b3cff;
    --rojo: #ff4d6d;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    color: var(--texto);
    background-color: var(--fondo);
}
a { color: var(--cian); }
img { max-width: 100%; height: auto; }
.contenedor { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }
h1 { font-size: clamp(30px, 5vw, 48px); font-weight: 800; }
h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 800; text-align: center; }
h3 { font-size: 20px; font-weight: 600; }
.degradado {
    background: linear-gradient(90deg, var(--cian), var(--magenta));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.centrado { text-align: center; }
.subtitulo { color: var(--suave); max-width: 720px; margin: 0 auto 40px; text-align: center; }

/* Portada */
.portada {
    background: linear-gradient(180deg, rgba(18,13,43,0.35) 0%, var(--fondo) 100%), url('imagenes/fondohome.webp') center / cover no-repeat;
    padding: 32px 0 64px;
}
.portada .logo { display: block; width: min(420px, 80%); margin: 0 auto 24px; }
.portada-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; }
.portada p.lead { font-size: 19px; color: var(--suave); }
.ventajas { list-style: none; padding: 0; margin: 20px 0 28px; }
.ventajas li { padding: 6px 0 6px 34px; position: relative; }
.ventajas li::before { content: "✓"; position: absolute; left: 0; top: 6px; width: 24px; height: 24px; border-radius: 50%; background: var(--cian); color: var(--fondo); font-weight: 800; font-size: 14px; text-align: center; line-height: 24px; }

.boton {
    display: inline-block; border: 0; cursor: pointer; text-decoration: none; text-align: center;
    font-family: inherit; font-weight: 600; font-size: 18px; line-height: 1.2; color: #ffffff;
    padding: 16px 28px; border-radius: 999px;
    background: linear-gradient(90deg, var(--morado), var(--magenta));
    box-shadow: 0 8px 24px rgba(255, 47, 214, 0.35);
    transition: transform .15s ease, box-shadow .15s ease;
}
.boton:hover, .boton:focus { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(255, 47, 214, 0.5); }
.boton.secundario { background: transparent; border: 2px solid var(--cian); color: var(--cian); box-shadow: none; }

/* Formulario */
.tarjeta { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 24px; padding: 28px; backdrop-filter: blur(6px); }
.formulario h2 { text-align: left; font-size: 26px; margin-bottom: 8px; }
.formulario p { color: var(--suave); margin: 0 0 18px; font-size: 15px; }
.formulario label { display: block; font-size: 14px; font-weight: 600; margin: 12px 0 6px; }
.formulario input[type=text], .formulario input[type=email] {
    width: 100%; font: inherit; font-size: 17px; color: #1b1440; background: #ffffff;
    border: 2px solid transparent; border-radius: 14px; padding: 13px 16px; outline: none;
}
.formulario input:focus { border-color: var(--cian); }
.formulario .boton { width: 100%; margin-top: 20px; }
.formulario .nota { font-size: 13px; margin-top: 14px; text-align: center; }
.aviso { background: #ffe7a3; color: #3d2c00; border-radius: 14px; padding: 12px 16px; font-size: 15px; margin-bottom: 12px; }

/* Secciones */
section { padding: 64px 0; }
.pasos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: paso; }
.paso { position: relative; padding-top: 44px; }
.paso .numero {
    position: absolute; top: -22px; left: 28px; width: 52px; height: 52px; border-radius: 50%;
    background: linear-gradient(135deg, var(--cian), var(--magenta)); color: var(--fondo);
    font-weight: 800; font-size: 24px; display: flex; align-items: center; justify-content: center;
}
.paso p { color: var(--suave); margin: 0; }
.paso img { border-radius: 14px; margin-top: 16px; display: block; }

.demo { display: grid; grid-template-columns: 360px 1fr; gap: 40px; align-items: center; }
.demo video { width: 100%; max-width: 360px; border-radius: 20px; background: #000000; display: block; margin: 0 auto; }

.funciones { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.funcion .icono { font-size: 34px; display: block; margin-bottom: 8px; }
.funcion p { color: var(--suave); margin: 0; font-size: 15px; }

.preguntas { max-width: 820px; margin: 0 auto; }
.preguntas details { background: var(--tarjeta); border: 1px solid var(--borde); border-radius: 16px; margin-bottom: 12px; padding: 0 20px; }
.preguntas summary { cursor: pointer; font-weight: 600; padding: 18px 0; list-style: none; position: relative; padding-right: 30px; }
.preguntas summary::-webkit-details-marker { display: none; }
.preguntas summary::after { content: "+"; position: absolute; right: 0; top: 14px; font-size: 24px; color: var(--cian); }
.preguntas details[open] summary::after { content: "–"; }
.preguntas details p { color: var(--suave); margin: 0 0 18px; }

.apoyo { background: linear-gradient(135deg, rgba(123,60,255,0.25), rgba(255,47,214,0.18)); border-radius: 28px; padding: 40px 28px; text-align: center; }
.apoyo p { color: var(--suave); max-width: 640px; margin: 0 auto 20px; }

.llamado { text-align: center; }
footer { border-top: 1px solid var(--borde); padding: 28px 0; color: var(--suave); font-size: 14px; text-align: center; }

@media (max-width: 900px) {
    .portada-grid, .demo { grid-template-columns: 1fr; }
    .pasos, .funciones { grid-template-columns: 1fr; gap: 40px; }
    .funciones { gap: 16px; }
    section { padding: 48px 0; }
    .portada .texto { text-align: center; }
    .ventajas { display: inline-block; text-align: left; }
    .texto .boton.secundario { display: none; }
}
    
/* Páginas interiores */
.pagina { background: linear-gradient(180deg, rgba(18,13,43,0.45) 0%, var(--fondo) 520px), url('../imagenes/fondohome.webp') top center / cover no-repeat; min-height: 100vh; padding: 28px 0 0; }
.pagina .logo { display: block; width: min(300px, 70%); margin: 0 auto 20px; }
.estrecho { max-width: 760px; margin: 0 auto; padding: 0 20px; }
.hero { text-align: center; padding: 8px 0 28px; }
.hero p { color: var(--suave); max-width: 640px; margin: 0 auto; }
.codigo { display: inline-block; background: var(--tarjeta); border: 2px dashed var(--cian); border-radius: 16px; padding: 8px 22px; margin: 14px 0 0; font-size: 28px; font-weight: 800; letter-spacing: 6px; color: var(--cian); }
.bloque { margin-bottom: 22px; }
.bloque h2 { text-align: left; font-size: 24px; display: flex; align-items: center; gap: 12px; }
.bloque .numero { flex: 0 0 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--cian), var(--magenta)); color: var(--fondo); font-weight: 800; font-size: 20px; display: flex; align-items: center; justify-content: center; }
.bloque p { color: var(--suave); }
.enlace { background: rgba(255,255,255,0.08); border: 1px solid var(--borde); border-radius: 14px; padding: 12px 16px; margin: 12px 0; font-weight: 600; word-break: break-all; color: #ffffff; }
.acciones { display: flex; flex-wrap: wrap; gap: 10px; }
.acciones .boton { font-size: 16px; padding: 13px 22px; }
.zonas { list-style: none; padding: 0; margin: 14px 0 0; }
.zonas li { background: rgba(255,255,255,0.06); border-radius: 14px; padding: 12px 16px; margin-bottom: 10px; color: var(--suave); }
.zonas li strong { color: #ffffff; display: block; }
.qr-caja { background: #ffffff; border-radius: 18px; padding: 18px; width: fit-content; max-width: 100%; margin: 14px auto; }
.qr-caja img, .qr-caja canvas { max-width: 100%; height: auto !important; }
.captura { display: block; border-radius: 14px; margin: 16px auto 0; max-width: 100%; height: auto; }
.video-caja { text-align: center; margin: 4px 0 28px; }
.video-caja video { width: 100%; max-width: 320px; border-radius: 20px; background: #000000; }
.aviso-tiempo { background: rgba(255, 214, 102, 0.12); border: 1px solid rgba(255, 214, 102, 0.45); color: #ffe7a3; border-radius: 16px; padding: 14px 18px; margin-bottom: 22px; }
.copiado { color: var(--cian); font-size: 14px; min-height: 20px; margin-top: 6px; }
@media (max-width: 600px) { .acciones .boton { width: 100%; } .codigo { font-size: 24px; letter-spacing: 4px; } }