/* ============================================================
   Cuadrante — sistema de diseño
   Metáfora: un cuadrante localiza el punto exacto.
   Audacia en un solo lugar (el punto Signal); todo lo demás, callado.
   ============================================================ */

:root {
  /* Paleta — base fría + un solo acento señal */
  --paper:    #F7F8FA;
  --ink:      #0E1420;
  --graphite: #5B6472;
  --hairline: #E2E6EC;
  --signal:   #E5341F;

  --paper-2:  #FFFFFF;        /* superficies elevadas mínimas */
  --ink-soft: rgba(14, 20, 32, 0.72);

  /* Tipografía */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body:    "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Type scale (1.25 — mayor tercera) */
  --t-xs:   0.78rem;
  --t-sm:   0.9rem;
  --t-base: 1rem;
  --t-md:   1.15rem;
  --t-lg:   1.45rem;
  --t-xl:   2rem;
  --t-2xl:  2.7rem;
  --t-3xl:  clamp(2.4rem, 6vw, 4.1rem);

  /* Layout */
  --wrap:      1160px;
  --gutter:    24px;
  --section-y: clamp(4rem, 9vw, 7.5rem);
  --radius:    2px;           /* casi cero: instrumento, no burbuja */

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset acotado ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--t-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, p, ol, ul, figure { margin: 0; }
a { color: inherit; }
button { font: inherit; }
img, svg { display: block; max-width: 100%; }

/* ---------- Utilidades ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; font-family: var(--font-mono); font-size: var(--t-sm);
}
.skip-link:focus { left: 12px; top: 12px; }

/* Foco de teclado visible en todos lados */
:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- Eyebrow: marca de coordenada en mono ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: 0.14em;
  color: var(--graphite);
  text-transform: uppercase;
}
.eyebrow__tick {
  position: relative;
  width: 10px; height: 10px;
  flex: 0 0 auto;
}
/* crosshair diminuto, monocromo (el color se gasta solo en el hero) */
.eyebrow__tick::before,
.eyebrow__tick::after {
  content: ""; position: absolute; background: var(--graphite);
}
.eyebrow__tick::before { left: 50%; top: 0; width: 1px; height: 100%; transform: translateX(-50%); }
.eyebrow__tick::after  { top: 50%; left: 0; height: 1px; width: 100%; transform: translateY(-50%); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--t-sm);
  letter-spacing: 0.02em;
  padding: 0.85rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), transform .18s var(--ease);
}
.btn--primary { background: var(--signal); color: #fff; border-color: var(--signal); }
.btn--primary:hover { background: #c72a16; border-color: #c72a16; }
.btn--primary:active { transform: translateY(1px); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--hairline); }
.btn--ghost:hover { border-color: var(--ink); }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.55; cursor: progress; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.1) blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }
.brand__mark { color: var(--ink); display: inline-flex; }
.brand__dot { fill: var(--signal); stroke: none; }
.brand__word { font-size: var(--t-md); }
.site-header .btn--ghost { display: none; }
@media (min-width: 640px) { .site-header .btn--ghost { display: inline-flex; } }

/* ============================================================
   HERO — grilla de coordenadas + punto localizado (firma)
   ============================================================ */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--hairline); }
.hero__inner {
  position: relative; z-index: 2;
  padding-block: clamp(4.5rem, 12vw, 9rem) clamp(4rem, 10vw, 7rem);
  max-width: 900px;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--t-3xl);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin-block: 1.1rem 1.4rem;
  max-width: 16ch;
}
.hero__sub {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--graphite);
  max-width: 54ch;
  margin-bottom: 2.2rem;
}
.eyebrow--hero { color: var(--graphite); }

/* Grilla sutil de coordenadas */
.hero__grid {
  position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(to right, var(--hairline) 1px, transparent 1px),
    linear-gradient(to bottom, var(--hairline) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center;
  -webkit-mask-image: radial-gradient(120% 90% at 78% 30%, #000 0%, rgba(0,0,0,.5) 45%, transparent 78%);
          mask-image: radial-gradient(120% 90% at 78% 30%, #000 0%, rgba(0,0,0,.5) 45%, transparent 78%);
  opacity: 0.9;
}

/* El punto localizado — único crosshair de color, protagónico */
.hero__crosshair {
  position: absolute;
  top: 26%; right: 16%;
  width: 148px; height: 148px;
  transform: translate(50%, -50%);
}
@media (max-width: 720px) {
  .hero__crosshair { top: auto; bottom: 8%; right: 10%; width: 96px; height: 96px; }
  .hero__grid { -webkit-mask-image: radial-gradient(120% 80% at 82% 78%, #000 0%, transparent 72%); mask-image: radial-gradient(120% 80% at 82% 78%, #000 0%, transparent 72%); }
}
.hero__ring {
  position: absolute; inset: 50% auto auto 50%;
  width: 74px; height: 74px; transform: translate(-50%, -50%);
  border: 1px solid color-mix(in srgb, var(--signal) 40%, transparent);
  border-radius: 50%;
}
.hero__vline, .hero__hline { position: absolute; background: var(--signal); }
.hero__vline { left: 50%; top: 0; width: 1.5px; height: 100%; transform: translateX(-50%); }
.hero__hline { top: 50%; left: 0; height: 1.5px; width: 100%; transform: translateY(-50%); }
.hero__dot {
  position: absolute; left: 50%; top: 50%;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--signal);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--signal) 16%, transparent);
}
.hero__coord {
  position: absolute; left: calc(50% + 14px); top: calc(50% + 10px);
  font-family: var(--font-mono); font-size: var(--t-xs);
  color: var(--signal); letter-spacing: 0.06em;
  white-space: nowrap;
}

/* Animación de posicionamiento (una sola, precisa) */
@media (prefers-reduced-motion: no-preference) {
  .hero__crosshair[data-crosshair] { animation: locate 720ms var(--ease) both; }
  .hero__vline { animation: drawV 620ms var(--ease) 120ms both; }
  .hero__hline { animation: drawH 620ms var(--ease) 120ms both; }
  .hero__dot   { animation: pop 420ms var(--ease) 640ms both; }
  .hero__coord { animation: fade 400ms var(--ease) 760ms both; }
  .hero__ring  { animation: fade 500ms var(--ease) 560ms both; }
  @keyframes locate { from { opacity: 0; transform: translate(50%, -50%) scale(0.94); } to { opacity: 1; transform: translate(50%, -50%) scale(1); } }
  @keyframes drawV { from { transform: translateX(-50%) scaleY(0); } to { transform: translateX(-50%) scaleY(1); } }
  @keyframes drawH { from { transform: translateY(-50%) scaleX(0); } to { transform: translateY(-50%) scaleX(1); } }
  @keyframes pop { from { transform: translate(-50%,-50%) scale(0); } 70% { transform: translate(-50%,-50%) scale(1.25); } to { transform: translate(-50%,-50%) scale(1); } }
  @keyframes fade { from { opacity: 0; } to { opacity: 1; } }
}

/* ============================================================
   Secciones
   ============================================================ */
.section { padding-block: var(--section-y); border-bottom: 1px solid var(--hairline); }
.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--t-2xl);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-top: 1rem;
  max-width: 20ch;
}

/* Declaraciones grandes (problema / audiencia) */
.statement {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
  margin-top: 1.4rem;
  max-width: 26ch;
}
.statement--sm { font-size: clamp(1.3rem, 2.8vw, 1.9rem); max-width: 30ch; }
.section--problem { background: var(--paper-2); }
.section--audience { background: var(--paper-2); }

/* Tarjetas — qué hacemos */
.cards {
  margin-top: 2.6rem;
  display: grid; gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}
@media (min-width: 620px) { .cards { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .cards { grid-template-columns: repeat(4, 1fr); } }
.card {
  background: var(--paper);
  padding: 1.8rem 1.6rem 2rem;
  display: flex; flex-direction: column; gap: 0.6rem;
  transition: background .2s var(--ease);
}
.card:hover { background: var(--paper-2); }
.card__index { font-family: var(--font-mono); font-size: var(--t-xs); color: var(--graphite); letter-spacing: 0.1em; }
.card__title { font-family: var(--font-display); font-weight: 600; font-size: var(--t-md); letter-spacing: -0.01em; }
.card__body { color: var(--graphite); font-size: var(--t-sm); line-height: 1.55; }

/* Pasos — cómo trabajamos (secuencia real) */
.steps { list-style: none; padding: 0; margin-top: 2.6rem; display: grid; gap: 0; }
.step {
  display: grid; grid-template-columns: auto 1fr; gap: 1.4rem;
  padding-block: 1.6rem;
  border-top: 1px solid var(--hairline);
}
.step:last-child { border-bottom: 1px solid var(--hairline); }
.step__coord {
  font-family: var(--font-mono); font-size: var(--t-sm);
  color: var(--ink); font-weight: 500;
  padding-top: 0.15rem;
}
.step__title { font-family: var(--font-display); font-weight: 500; font-size: var(--t-lg); letter-spacing: -0.01em; }
.step__body { color: var(--graphite); margin-top: 0.35rem; max-width: 52ch; }

/* ============================================================
   Contacto + formulario
   ============================================================ */
.section--contact { border-bottom: none; }
.contact { display: grid; gap: 2.6rem; }
@media (min-width: 900px) {
  .contact { grid-template-columns: 0.85fr 1.15fr; gap: 4rem; align-items: start; }
}
.contact__copy { color: var(--graphite); margin-top: 1.2rem; max-width: 40ch; }

.form { display: grid; gap: 1.3rem; }
.field { display: grid; gap: 0.4rem; }
.field label { font-family: var(--font-mono); font-size: var(--t-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--graphite); }
.field input,
.field textarea {
  font-family: var(--font-body); font-size: var(--t-base);
  color: var(--ink); background: var(--paper-2);
  border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 0.8rem 0.9rem;
  transition: border-color .16s var(--ease), box-shadow .16s var(--ease);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ink);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ink) 8%, transparent);
}
.field textarea { resize: vertical; min-height: 132px; }
.field--key textarea { min-height: 168px; }
.field__hint { font-size: var(--t-xs); color: var(--graphite); }
.field__error { font-family: var(--font-mono); font-size: var(--t-xs); color: var(--signal); min-height: 0; }
.field__error:empty { display: none; }
.field [aria-invalid="true"] { border-color: var(--signal); }

/* honeypot — fuera de pantalla, no display:none (algunos bots lo saltan) */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.consent { display: grid; grid-template-columns: auto 1fr; gap: 0.7rem; align-items: start; font-size: var(--t-sm); color: var(--graphite); cursor: pointer; }
.consent input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--signal); }

.link {
  background: none; border: none; padding: 0; cursor: pointer;
  color: var(--ink); font: inherit;
  text-decoration: underline; text-decoration-color: var(--signal); text-underline-offset: 3px;
}
.link:hover { color: var(--signal); }

.form__server-error {
  font-family: var(--font-mono); font-size: var(--t-sm);
  color: var(--signal); border: 1px solid color-mix(in srgb, var(--signal) 40%, transparent);
  padding: 0.7rem 0.9rem; border-radius: var(--radius);
}

.form-success {
  display: flex; flex-direction: column; gap: 0.4rem; align-items: flex-start;
  padding: 2rem; border: 1px solid var(--hairline); background: var(--paper-2);
}
.form-success__mark { color: var(--ink); }
.form-success h3 { font-family: var(--font-display); font-weight: 600; font-size: var(--t-xl); }
.form-success p { color: var(--graphite); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--hairline); background: var(--paper); }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: space-between; align-items: center; padding-block: 1.8rem; }
.site-footer__brand { font-family: var(--font-display); font-weight: 600; }
.site-footer__meta { font-family: var(--font-mono); font-size: var(--t-xs); color: var(--graphite); letter-spacing: 0.04em; }

/* ---------- Privacidad (modal) ---------- */
.privacy { border: 1px solid var(--hairline); border-radius: var(--radius); padding: 0; max-width: 560px; width: calc(100% - 32px); color: var(--ink); background: var(--paper); }
.privacy::backdrop { background: color-mix(in srgb, var(--ink) 40%, transparent); backdrop-filter: blur(2px); }
.privacy__inner { padding: 2rem; }
.privacy__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.8rem; }
.privacy h2 { font-family: var(--font-display); font-weight: 600; font-size: var(--t-xl); margin-bottom: 1rem; }
.privacy p { color: var(--graphite); font-size: var(--t-sm); margin-bottom: 0.8rem; }
.privacy p strong { color: var(--ink); font-weight: 600; }
.privacy__close { background: none; border: none; font-size: 1.6rem; line-height: 1; color: var(--graphite); cursor: pointer; padding: 0.2rem; }
.privacy__close:hover { color: var(--ink); }

/* ---------- Reveal en scroll ---------- */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
  [data-reveal].is-visible { opacity: 1; transform: none; }
}