/* Obby Lab · página pública de la academia (landing). Colores en /brand/tokens.css, Obi en /brand/obi.css.
   No carga estilos.css (el del portal, 50 kB): esta página se ve antes de que nadie tenga cuenta. */
:root {
  --font-display: 'Grandstander', 'Figtree', system-ui, sans-serif;
  --font-body: 'Figtree', system-ui, -apple-system, sans-serif;
  --sombra: 0 10px 30px rgba(14, 38, 38, .10);
  --sombra-fuerte: 0 18px 44px rgba(14, 38, 38, .16);
  --borde: 2px solid var(--linea);
  --radio: 20px;
  --ancho: 1140px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --sombra: 0 10px 30px rgba(0, 0, 0, .5); --sombra-fuerte: 0 18px 44px rgba(0, 0, 0, .6); }
}
:root[data-theme="dark"] { --sombra: 0 10px 30px rgba(0, 0, 0, .5); --sombra-fuerte: 0 18px 44px rgba(0, 0, 0, .6); }

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--tinta); background: var(--fondo);
  font-family: var(--font-body); font-size: 17px; line-height: 1.6; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--enlace); }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; margin: 0; text-wrap: balance; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 1.3rem + 3.2vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 1.2rem + 2vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: .7rem 0; }
.ac-lead { font-size: clamp(1.05rem, 1rem + .4vw, 1.25rem); color: var(--tinta-2); max-width: 60ch; }
.ac-eyebrow { font-family: var(--font-body); font-size: .78rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--marca); margin: 0 0 .5rem; }
.ac-centro { text-align: center; margin-inline: auto; }
.ac-shell { width: 100%; max-width: var(--ancho); margin-inline: auto; padding-inline: 20px; }
section { padding-block: clamp(48px, 7vw, 86px); }
section[id] { scroll-margin-top: 84px; }  /* la cabecera queda fija: los enlaces del menú no tapan el título */
.ac-salta { position: absolute; left: -9999px; top: 8px; background: var(--superficie); padding: 10px 14px; border-radius: 10px; z-index: 100; }
.ac-salta:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--foco); outline-offset: 3px; border-radius: 6px; }

/* ---- botones */
.ac-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 52px; padding: 13px 24px;
  border-radius: 16px; border: 2px solid transparent; font: inherit; font-weight: 800; font-size: 1.05rem;
  text-decoration: none; cursor: pointer; color: inherit; background: none; transition: transform .08s ease, background .15s ease, border-color .15s ease;
}
.ac-btn-primary { background: var(--accion); color: var(--accion-texto); box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .22); }
.ac-btn-primary:hover { background: var(--accion-hover); }
.ac-btn-primary:active { transform: translateY(3px); box-shadow: inset 0 -1px 0 rgba(0, 0, 0, .22); }
.ac-btn-ghost { background: var(--superficie); color: var(--enlace); border-color: var(--linea); }
.ac-btn-ghost:hover { border-color: var(--marca-borde); }
.ac-btn-ghost:active { transform: translateY(2px); }
/* los íconos vienen de /brand/sprite.svg: ya traen sus trazos y usan currentColor; --i-ac pinta el relleno suave */
.ic { display: inline-block; flex: none; vertical-align: -.25em; }
.ic-dos { --i-ac: color-mix(in srgb, var(--bandera) 42%, var(--superficie)); }
.ac-btn .ic { width: 22px; height: 22px; }
.ac-acciones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 1.6rem; }
.ac-nota-cta { margin: .9rem 0 0; font-size: .95rem; color: var(--tinta-2); }

/* ---- cabecera */
.ac-top { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--fondo) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--linea); }
.ac-top .ac-shell { display: flex; align-items: center; gap: 18px; min-height: 68px; }
.ac-logo { display: flex; align-items: center; color: var(--marca); flex: none; }
.ac-logo svg { width: 150px; height: 48px; }
.ac-menu { display: flex; gap: 20px; margin-left: auto; font-weight: 600; }
.ac-menu a { color: var(--tinta); text-decoration: none; }
.ac-menu a:hover { color: var(--marca); }
.ac-top .ac-btn { min-height: 44px; padding: 8px 16px; font-size: .98rem; }
.ac-top-acc { display: flex; gap: 10px; align-items: center; margin-left: auto; }
.ac-menu + .ac-top-acc { margin-left: 0; }
@media (max-width: 900px) { .ac-menu { display: none; } .ac-logo svg { width: 124px; height: 40px; } }
@media (max-width: 480px) { .ac-top .ac-btn-ghost { display: none; } }

/* ---- portada */
.ac-portada { position: relative; overflow: hidden; padding-top: clamp(28px, 4vw, 54px); }
.ac-portada::before {
  content: ''; position: absolute; inset: -10% -10% auto -10%; height: 150%; z-index: -2;
  background:
    radial-gradient(60% 50% at 18% 12%, color-mix(in srgb, var(--marca) 20%, transparent), transparent 70%),
    radial-gradient(50% 45% at 86% 22%, color-mix(in srgb, var(--bandera) 24%, transparent), transparent 72%),
    radial-gradient(45% 40% at 70% 86%, color-mix(in srgb, var(--secundario) 16%, transparent), transparent 70%);
}
.ac-portada-grid { display: grid; gap: clamp(28px, 4vw, 52px); align-items: center; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
@media (max-width: 960px) { .ac-portada-grid { grid-template-columns: 1fr; } }
.ac-chapa { display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: 999px; background: var(--marca-suave); color: var(--profundo); border: 1px solid var(--marca-borde); font-size: .85rem; font-weight: 700; }
.ac-h1-marca { color: var(--marca); }
.ac-portada h1 { margin-top: 1rem; }
.ac-pruebas { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 1.4rem; padding: 0; list-style: none; font-weight: 600; font-size: .98rem; }
.ac-pruebas li { display: flex; align-items: center; gap: 8px; }
.ac-pruebas .ic { width: 21px; height: 21px; color: var(--exito); }

/* pantalla de la portada: el portal de verdad dentro de un marco de navegador */
.ac-pantalla { position: relative; }
.ac-marco { border-radius: 18px; overflow: hidden; border: var(--borde); background: var(--superficie); box-shadow: var(--sombra-fuerte); }
.ac-marco-barra { display: flex; align-items: center; gap: 6px; padding: 9px 12px; background: var(--superficie-2); border-bottom: 1px solid var(--linea); }
.ac-marco-barra i { width: 10px; height: 10px; border-radius: 50%; background: var(--linea); }
.ac-marco-barra span { margin-left: 8px; font-size: .74rem; color: var(--tinta-2); font-weight: 600; letter-spacing: .02em; }
.ac-marco img { width: 100%; }
.ac-obi-portada { position: absolute; right: -8px; bottom: -22px; width: clamp(96px, 13vw, 150px); filter: drop-shadow(0 10px 18px rgba(14, 38, 38, .22)); }
@media (max-width: 960px) { .ac-obi-portada { width: 100px; right: 4px; bottom: -14px; } }

/* ---- franja de datos */
.ac-franja { background: var(--profundo); color: #FFF; padding-block: clamp(26px, 3vw, 38px); }
:root[data-theme="dark"] .ac-franja, :root:not([data-theme="light"]) .ac-franja { color: var(--fondo); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .ac-franja { background: var(--marca); } }
:root[data-theme="dark"] .ac-franja { background: var(--marca); }
.ac-franja ul { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; margin: 0; padding: 0; list-style: none; text-align: center; }
.ac-franja b { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(1.3rem, 1rem + 1.1vw, 1.8rem); }
.ac-franja span { font-size: .92rem; opacity: .88; }
@media (max-width: 760px) { .ac-franja ul { grid-template-columns: repeat(2, 1fr); gap: 16px; } .ac-franja li:last-child { grid-column: 1 / -1; } }

/* ---- bloques y tarjetas */
.ac-alterna { background: var(--superficie-2); }
.ac-cabeza { max-width: 62ch; margin-bottom: clamp(24px, 3vw, 40px); }
.ac-cabeza.ac-centro { margin-inline: auto; }
.ac-rejilla { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.ac-tarjeta { background: var(--superficie); border: var(--borde); border-radius: var(--radio); padding: 24px; box-shadow: var(--sombra); }
.ac-tarjeta h3 { margin-bottom: .3rem; }
.ac-tarjeta p:last-child { margin-bottom: 0; }
.ac-icono { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: var(--marca-suave); color: var(--marca); margin-bottom: 14px; }
.ac-icono .ic { width: 26px; height: 26px; }

/* pasos numerados */
.ac-pasos { counter-reset: paso; display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.ac-pasos li { counter-increment: paso; position: relative; background: var(--superficie); border: var(--borde); border-radius: var(--radio); padding: 28px 24px 24px; box-shadow: var(--sombra); }
.ac-pasos li::before {
  content: counter(paso); position: absolute; top: -18px; left: 22px; width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center; background: var(--bandera); color: #3C2B02; font-family: var(--font-display); font-weight: 800; font-size: 1.25rem;
}
.ac-pasos { list-style: none; padding: 0; margin: 18px 0 0; }

/* la clase, fase por fase */
.ac-fases { display: grid; gap: 14px; }
.ac-fase { display: grid; grid-template-columns: 74px 1fr; gap: 18px; align-items: center; background: var(--superficie); border: var(--borde); border-left: 6px solid var(--marca); border-radius: 16px; padding: 16px 20px; }
.ac-fase b { font-family: var(--font-display); font-size: 1.1rem; }
.ac-fase-min { font-family: var(--font-display); font-weight: 800; font-size: 1.5rem; color: var(--marca); text-align: center; }
.ac-fase p { margin: .2rem 0 0; color: var(--tinta-2); font-size: .97rem; }
.ac-fase:nth-child(2) { border-left-color: var(--bandera); } .ac-fase:nth-child(2) .ac-fase-min { color: var(--aviso); }
.ac-fase:nth-child(3) { border-left-color: var(--secundario); } .ac-fase:nth-child(3) .ac-fase-min { color: var(--secundario-texto); }
.ac-fase:nth-child(4) { border-left-color: var(--exito); } .ac-fase:nth-child(4) .ac-fase-min { color: var(--exito-texto); }
@media (max-width: 560px) { .ac-fase { grid-template-columns: 56px 1fr; gap: 12px; padding: 14px; } }

/* galería del portal */
.ac-galeria { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.ac-galeria figure { margin: 0; background: var(--superficie); border: var(--borde); border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); }
.ac-galeria img { width: 100%; background: var(--superficie-2); }
.ac-galeria figcaption { padding: 16px 20px 20px; }
.ac-galeria figcaption b { font-family: var(--font-display); font-size: 1.1rem; display: block; margin-bottom: .2rem; }
.ac-galeria figcaption span { color: var(--tinta-2); font-size: .96rem; }
.ac-ancha { grid-column: 1 / -1; }
.ac-fig-movil { background: var(--marca-suave); }
.ac-fig-movil img { max-height: 460px; width: auto; margin-inline: auto; padding: 22px 0; }
@media (min-width: 900px) { .ac-ancha { display: grid; grid-template-columns: 1.35fr 1fr; align-items: center; } .ac-ancha figcaption { padding: 28px 32px; } .ac-fig-movil { grid-template-columns: 1fr 1.4fr; } }

/* actividades de la academia */
.ac-curso { display: flex; flex-direction: column; gap: 10px; }
.ac-estado { align-self: flex-start; font-size: .76rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; padding: 5px 11px; border-radius: 999px; }
.ac-estado-abierto { background: var(--exito-suave); color: var(--exito-texto); border: 1px solid color-mix(in srgb, var(--exito) 45%, transparent); }
.ac-estado-pronto { background: var(--bandera-suave); color: var(--aviso-texto); border: 1px solid color-mix(in srgb, var(--bandera) 55%, transparent); }
.ac-estado-prepara { background: var(--superficie-2); color: var(--tinta-2); border: 1px solid var(--linea); }
.ac-curso-edad { font-size: .92rem; color: var(--tinta-2); font-weight: 600; }

/* plan de estudio */
.ac-plan { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }
.ac-plan li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start; background: var(--superficie); border: var(--borde); border-radius: 14px; padding: 14px 16px; }
.ac-plan .n { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--marca-suave); color: var(--profundo); font-family: var(--font-display); font-weight: 800; }
.ac-plan b { display: block; }
.ac-plan span { color: var(--tinta-2); font-size: .95rem; }
.ac-plan li:last-child .n { background: var(--bandera); color: #3C2B02; }

/* seguridad */
.ac-seguro { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.ac-seguro li { display: grid; grid-template-columns: 30px 1fr; gap: 12px; align-items: start; }
.ac-seguro .ic { width: 24px; height: 24px; color: var(--exito); margin-top: 4px; }

/* quién enseña */
.ac-profe { display: grid; grid-template-columns: 220px 1fr; gap: clamp(22px, 3vw, 40px); align-items: center; background: var(--superficie); border: var(--borde); border-radius: var(--radio); padding: clamp(22px, 3vw, 36px); box-shadow: var(--sombra); }
.ac-profe-foto { width: 100%; aspect-ratio: 1; border-radius: 50%; object-fit: cover; background: var(--marca-suave); }
.ac-profe-marca { width: 100%; aspect-ratio: 1; border-radius: 50%; background: var(--marca-suave); display: grid; place-items: center; }
.ac-profe-marca svg { width: 52%; height: 52%; --c1: var(--marca); --c2: var(--profundo); --c3: var(--secundario); --c4: var(--bandera); }
.ac-profe blockquote { margin: 0; font-size: clamp(1.05rem, 1rem + .5vw, 1.25rem); }
.ac-profe cite { display: block; margin-top: 1rem; font-style: normal; font-weight: 700; }
.ac-profe cite span { display: block; font-weight: 500; color: var(--tinta-2); font-size: .95rem; }
@media (max-width: 700px) { .ac-profe { grid-template-columns: 1fr; text-align: center; } .ac-profe-foto { width: 150px; margin-inline: auto; } }

/* preguntas */
.ac-faq { display: grid; gap: 12px; max-width: 820px; margin-inline: auto; }
.ac-faq details { background: var(--superficie); border: var(--borde); border-radius: 16px; overflow: hidden; }
.ac-faq summary { cursor: pointer; padding: 18px 54px 18px 20px; font-weight: 700; font-family: var(--font-display); font-size: 1.08rem; position: relative; list-style: none; }
.ac-faq summary::-webkit-details-marker { display: none; }
.ac-faq summary::after { content: '+'; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.6rem; line-height: 1; color: var(--marca); font-family: var(--font-body); }
.ac-faq details[open] summary::after { content: '–'; }
.ac-faq .ac-resp { padding: 0 20px 18px; color: var(--tinta-2); }
.ac-faq .ac-resp p { margin-top: 0; }

/* formulario */
.ac-contacto { background: var(--marca-suave); }
.ac-form-caja { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(24px, 4vw, 48px); align-items: start; background: var(--superficie); border: var(--borde); border-radius: 24px; padding: clamp(24px, 3.5vw, 44px); box-shadow: var(--sombra-fuerte); }
@media (max-width: 860px) { .ac-form-caja { grid-template-columns: 1fr; } }
.ac-form { display: grid; gap: 14px; }
.ac-campo { display: grid; gap: 6px; }
.ac-campo > span { font-weight: 700; font-size: .95rem; }
.ac-campo input, .ac-campo select, .ac-campo textarea {
  font: inherit; font-size: 1rem; color: var(--tinta); background: var(--superficie-2);
  border: 2px solid var(--linea); border-radius: 12px; padding: 12px 14px; width: 100%; min-height: 48px;
}
.ac-campo textarea { min-height: 92px; resize: vertical; }
.ac-campo input:focus, .ac-campo select:focus, .ac-campo textarea:focus { border-color: var(--marca); outline: none; }
.ac-dos { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 460px) { .ac-dos { grid-template-columns: 1fr; } }
.ac-acepta { display: grid; grid-template-columns: 24px 1fr; gap: 10px; align-items: start; font-size: .92rem; color: var(--tinta-2); }
.ac-acepta input { width: 22px; height: 22px; margin: 2px 0 0; accent-color: var(--marca); }
.ac-trampa { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.ac-salida { margin: 0; font-weight: 700; min-height: 1.5rem; }
.ac-salida.ok { color: var(--exito-texto); }
.ac-salida.mal { color: var(--error-texto); }
.ac-gracias { display: grid; gap: 14px; place-items: center; text-align: center; padding: 20px 0; }
.ac-gracias .obi-vivo { width: 120px; height: 150px; }

/* pie */
.ac-pie { background: var(--superficie-2); border-top: 1px solid var(--linea); padding-block: 36px; font-size: .95rem; }
.ac-pie .ac-shell { display: flex; flex-wrap: wrap; gap: 14px 26px; align-items: center; }
.ac-pie-marca { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--marca); }
.ac-pie-marca svg { width: 30px; height: 30px; }
.ac-pie a { color: var(--tinta-2); text-decoration: none; }
.ac-pie a:hover { color: var(--marca); text-decoration: underline; }
.ac-pie-fin { margin-left: auto; color: var(--tinta-2); }
@media (max-width: 700px) { .ac-pie-fin { margin-left: 0; } }

/* Obi suelto entre secciones */
.obi-vivo { display: block; width: 110px; height: 138px; }
.ac-obi-fila { display: flex; align-items: center; gap: 18px; justify-content: center; margin-top: clamp(26px, 3vw, 40px); }
.ac-obi-dice { position: relative; background: var(--superficie); border: var(--borde); border-radius: 18px; padding: 14px 20px; max-width: 34ch; font-weight: 600; box-shadow: var(--sombra); }
.ac-obi-dice::before { content: ''; position: absolute; left: -11px; top: 50%; width: 18px; height: 18px; background: var(--superficie); border-left: var(--borde); border-bottom: var(--borde); transform: translateY(-50%) rotate(45deg); }
@media (max-width: 560px) { .ac-obi-fila { flex-direction: column; } .ac-obi-dice::before { left: 50%; top: -11px; transform: translate(-50%, 0) rotate(135deg); } }

/* aparecer al bajar (solo con JS y si el sistema no pide menos movimiento) */
.js [data-sube] { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.js [data-sube].ver { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js [data-sube] { opacity: 1; transform: none; transition: none; }
}