/* El Content — Brief inicial de proyecto. Mismos colores y tipografía que la web. */
:root {
  --noche: #040036; --noche-2: #0e0a55; --papel: #f4f3fa; --blanco: #fff;
  --tinta: #040036; --tinta-suave: #4d4a73; --niebla: #bdbadb;
  --ambar: #f7a31c; --coral: #e95c38; --laguna: #1d8c93;
  --linea: rgba(4, 0, 54, 0.14);
  --marca: linear-gradient(90deg, var(--ambar), var(--coral));
  --font: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --gutter: clamp(16px, 4vw, 56px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); font-size: 1.0625rem; line-height: 1.6; color: var(--tinta); background: var(--papel); -webkit-font-smoothing: antialiased; }
[hidden] { display: none !important; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
p { margin: 0 0 1em; }
h1, h2 { margin: 0; }
button, input, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--ambar); outline-offset: 3px; border-radius: 4px; }
.wrap { width: 100%; max-width: 1080px; margin-inline: auto; padding-inline: var(--gutter); }
.grad { background: var(--marca); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; margin: 0; color: var(--ambar); }
.eyebrow--light { color: var(--tinta-suave); }

/* Barra de avance */
.progress { position: fixed; inset: 0 0 auto 0; height: 4px; z-index: 50; background: rgba(255,255,255,0.12); }
.progress i { display: block; height: 100%; width: 0; background: var(--marca); transition: width 0.5s var(--ease); }

/* Cabecera */
.top { background: var(--noche); color: var(--blanco); }
.top__in { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 22px; }
.top__logo img { height: 34px; width: auto; }
.top__back { font-size: 0.9375rem; font-weight: 600; text-decoration: none; opacity: 0.8; }
.top__back:hover { opacity: 1; text-decoration: underline; text-underline-offset: 4px; }

/* Introducción */
.intro { background: var(--noche); color: var(--blanco); min-height: calc(100svh - 78px); display: flex; align-items: center; padding-block: clamp(36px, 6vw, 80px); position: relative; overflow: hidden; }
.intro::before { content: ""; position: absolute; right: -12%; top: -40%; width: 60vw; max-width: 760px; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle, rgba(233, 92, 56, 0.35), rgba(247, 163, 28, 0.1) 45%, transparent 68%); pointer-events: none; }
.intro__in { position: relative; }
.intro__go { margin-top: clamp(28px, 4vw, 44px); }
.intro__go .btn__arrow { transition: transform 0.25s var(--ease); }
.intro__go:hover .btn__arrow { transform: translateY(3px); }
.intro__title { font-size: clamp(2.4rem, 1.2rem + 5.4vw, 5rem); font-weight: 850; font-stretch: 115%; line-height: 1; letter-spacing: -0.02em; margin: 18px 0 18px; text-wrap: balance; max-width: 14ch; }
.intro__sub { font-size: 1.333rem; font-weight: 600; color: var(--niebla); margin: 0 0 28px; max-width: 34ch; line-height: 1.35; }
.intro__copy { max-width: 62ch; color: var(--niebla); }
.intro__copy p:last-child { margin: 0; }

/* Formulario */
.formwrap { margin-top: 0; padding-top: clamp(40px, 6vw, 72px); scroll-margin-top: 0; position: relative; padding-bottom: clamp(56px, 8vw, 110px); }
.brief { display: grid; gap: clamp(16px, 2.4vw, 28px); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.card { margin: 0; min-width: 0; background: var(--blanco); border-radius: 28px; padding: clamp(22px, 4vw, 44px); box-shadow: 0 30px 60px -40px rgba(4, 0, 54, 0.35); border: 0; }
.card__legend { float: left; width: 100%; padding: 0; margin: 0 0 clamp(18px, 3vw, 28px); display: flex; align-items: baseline; gap: 16px; }
.card__legend + * { clear: both; }
.card__n { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 13px; letter-spacing: 0.1em; color: var(--coral); font-weight: 500; }
.card__t { font-size: clamp(1.45rem, 1rem + 1.5vw, 2.1rem); font-weight: 850; font-stretch: 112%; line-height: 1.1; letter-spacing: -0.01em; }
.card.is-done .card__n::after { content: " ✓"; color: var(--laguna); }

.qs { display: grid; gap: 22px 24px; }
@media (min-width: 720px) { .qs { grid-template-columns: 1fr 1fr; } .q--wide { grid-column: 1 / -1; } }
.q label { display: block; font-size: 0.9375rem; font-weight: 650; line-height: 1.35; margin-bottom: 8px; }
.q label small { font-weight: 400; color: var(--tinta-suave); }
.q input, .q textarea {
  width: 100%; background: var(--papel); border: 0; border-radius: 14px; padding: 14px 16px; line-height: 1.5;
  box-shadow: inset 0 0 0 1.5px transparent; transition: box-shadow 0.2s, background-color 0.2s;
}
.q input { min-height: 52px; }
.q textarea { resize: vertical; min-height: 96px; }
.q input:hover, .q textarea:hover { box-shadow: inset 0 0 0 1.5px var(--linea); }
.q input:focus, .q textarea:focus { outline: 0; background: var(--blanco); box-shadow: inset 0 0 0 2px var(--ambar), 0 0 0 5px rgba(247, 163, 28, 0.18); }
.q ::placeholder { color: rgba(77, 74, 115, 0.55); }

/* Envío */
.send { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; padding: clamp(6px, 1vw, 12px) clamp(4px, 1vw, 10px) 0; }
.send__note { color: var(--tinta-suave); margin: 0; font-size: 0.9375rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 56px; padding: 0 32px; border-radius: 999px; border: 0; font-weight: 700; font-size: 1.0625rem; cursor: pointer; text-decoration: none; transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), opacity 0.2s; }
.btn--brand { background: var(--marca); color: var(--noche); }
.btn--brand:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(233, 92, 56, 0.7); }
.btn[disabled] { opacity: 0.6; cursor: progress; transform: none; box-shadow: none; }
.btn__arrow { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.send__msg { margin: 0; min-height: 1.4em; font-size: 0.9375rem; font-weight: 600; color: #b3361a; }
@media (max-width: 639px) { .send__btn { width: 100%; } }

/* Agradecimiento */
.thanks { background: var(--noche); color: var(--blanco); border-radius: 28px; padding: clamp(32px, 6vw, 72px); text-align: center; display: grid; justify-items: center; gap: 4px; animation: subir 0.6s var(--ease); box-shadow: 0 30px 60px -30px rgba(4, 0, 54, 0.6); }
.thanks:focus { outline: 0; }
.thanks p { color: var(--niebla); max-width: 56ch; }
.thanks__ico { width: 72px; height: 72px; border-radius: 50%; background: var(--marca); display: grid; place-items: center; margin-bottom: 22px; }
.thanks__ico svg { width: 34px; height: 34px; fill: none; stroke: var(--noche); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.thanks__title { font-size: clamp(1.8rem, 1.2rem + 2.6vw, 3rem); font-weight: 850; font-stretch: 112%; line-height: 1.08; margin-bottom: 20px; text-wrap: balance; max-width: 20ch; }
.thanks__sign { margin-top: 28px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.16); display: grid; justify-items: center; gap: 8px; width: min(100%, 520px); }
.thanks__sign img { height: 36px; width: auto; margin-bottom: 8px; }
.thanks__sign strong { letter-spacing: 0.06em; font-size: 0.9375rem; }
.thanks__sign .eyebrow--light { color: var(--niebla); }
.thanks__sign a { color: var(--ambar); font-weight: 600; text-underline-offset: 4px; }
@keyframes subir { from { opacity: 0; transform: translateY(16px); } }

.foot { background: var(--noche); color: var(--niebla); font-size: 0.8125rem; padding-block: 24px; }
.foot a { color: var(--blanco); }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; } html { scroll-behavior: auto; } }

/* Tras enviar: solo el agradecimiento */
.enviado .intro { display: none; }



@media (max-width: 639px) {
  .intro__title { font-size: 2.5rem; }
  .intro__sub { font-size: 1.15rem; }
  .intro__copy { font-size: 1rem; }
  .intro__go { width: 100%; }
}


/* PC: índice lateral con las secciones y un solo panel blanco. */
@media (min-width: 900px) {
  .intro { min-height: 0; padding-block: 40px 56px; }
  .intro__title { font-size: clamp(2.2rem, 3.6vw, 3.4rem); max-width: none; }
  .intro__sub { margin: 0; }
  .wrap.formwrap { max-width: 1120px; margin-top: 0; padding-top: 48px; display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; align-items: start; }
  .fnav { position: sticky; top: 32px; }
  .fnav ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; border-left: 2px solid var(--linea); }
  .fnav a { display: flex; gap: 12px; align-items: baseline; padding: 10px 14px; margin-left: -2px; border-left: 2px solid transparent; text-decoration: none; font-weight: 650; font-size: .95rem; color: var(--tinta-suave); }
  .fnav a span { font: 500 12px "IBM Plex Mono", monospace; color: var(--coral); }
  .fnav a.on { border-left-color: var(--coral); color: var(--tinta); }
  .fnav a.done::after { content: "✓"; margin-left: auto; color: var(--laguna); }
  .brief { background: #fff; border-radius: 28px; padding: clamp(8px, 2vw, 16px) clamp(22px, 4vw, 48px) 36px; box-shadow: 0 30px 60px -40px rgba(4, 0, 54, .35); }
  .card { box-shadow: none; border-radius: 0; padding: 36px 0; border-bottom: 1px solid var(--linea); }
  .card__t { font-size: 1.6rem; }
  .send { padding-top: 26px; }
}
@media (max-width: 899px) { .fnav { display: none; } .intro { min-height: 0; padding-block: 28px 90px; } }