/* Sinapta: estilos del sitio. Sin dependencias ni recursos externos. */

:root {
  color-scheme: light dark;
  --paper: #faf9f6;
  --surface: #ffffff;
  --ink: #14151c;
  --muted: #585c69;
  --line: #e4e1d9;
  --accent: #4338f0;
  --accent-ink: #ffffff;
  --accent-soft: #ecebff;
  --spark: #ff6a3d;
  --radius: 14px;
  --wrap: 1120px;
  --font: "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --display: "Segoe UI Variable Display", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1016;
    --surface: #181a23;
    --ink: #f2f1ec;
    --muted: #a6aab7;
    --line: #2b2e3b;
    --accent: #8e88ff;
    --accent-ink: #0f1016;
    --accent-soft: #20213d;
    --spark: #ff8259;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--font);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.2rem, 5.2vw, 3.6rem);
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
}

h3 {
  font-size: 1.2rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1em;
}

:focus-visible {
  outline: 3px solid var(--spark);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: min(100% - 40px, var(--wrap));
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 100;
}

.skip:focus {
  left: 8px;
}

/* Cabecera */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font: 700 1.4rem/1 var(--display);
  letter-spacing: -0.03em;
}

.logo-mark {
  width: 44px;
  height: 24px;
  flex: none;
}

.logo-mark .n1 {
  fill: var(--accent);
}

.logo-mark .n2 {
  fill: none;
  stroke: var(--accent);
  stroke-width: 3;
}

.logo-mark .sp {
  fill: var(--spark);
}

.nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 22px;
  font-size: 0.97rem;
}

.nav a:not(.btn) {
  color: var(--ink);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.nav a:not(.btn):hover,
.nav a[aria-current="page"]:not(.btn) {
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  font: 600 0.95rem var(--font);
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
}

@media (max-width: 860px) {
  .js .nav-toggle {
    display: inline-block;
  }

  .js .nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 20px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }

  .js .nav.open {
    display: flex;
  }

  .js .nav a:not(.btn) {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
  }

  .js .nav .btn {
    margin-top: 16px;
  }

  html:not(.js) .header-in {
    flex-wrap: wrap;
    padding-block: 12px;
  }
}

/* Botones */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 600 1rem/1 var(--font);
  text-decoration: none;
  padding: 16px 26px;
  border: 2px solid var(--accent);
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px -10px var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}

.btn-ghost:hover {
  border-color: var(--ink);
  box-shadow: none;
}

.btn-invert {
  background: var(--accent-ink);
  color: var(--accent);
  border-color: var(--accent-ink);
}

.btn-sm {
  padding: 11px 20px;
  font-size: 0.95rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* Portada */

.hero {
  padding-block: clamp(48px, 8vw, 96px) clamp(40px, 6vw, 72px);
}

.hero-in {
  display: grid;
  gap: 40px;
  align-items: center;
}

@media (min-width: 940px) {
  .hero-in {
    grid-template-columns: 1.08fr 0.92fr;
  }
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
}

.kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--spark);
}

.lead {
  font-size: clamp(1.1rem, 1.6vw, 1.28rem);
  color: var(--muted);
  max-width: 56ch;
}

.hero-art {
  width: 100%;
  max-width: 520px;
  margin-inline: auto;
}

.hero-art .link {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
}

.hero-art .pill rect {
  fill: var(--surface);
  stroke: var(--line);
  stroke-width: 1.5;
}

.hero-art .pill text,
.hero-art .core text {
  font: 600 14px var(--font);
  text-anchor: middle;
  dominant-baseline: central;
  fill: var(--ink);
}

.hero-art .core circle {
  fill: var(--accent);
}

.hero-art .core .halo {
  fill: var(--accent-soft);
}

.hero-art .core text {
  fill: var(--accent-ink);
  font-size: 15px;
}

.hero-art .pulse {
  fill: var(--spark);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-art .pulse {
    display: none;
  }

  .btn {
    transition: none;
  }
}

/* Secciones */

.section {
  padding-block: clamp(56px, 8vw, 104px);
}

.section-alt {
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.section-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.section-head p {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0;
}

.cards {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  list-style: none;
  padding: 0;
  margin: 0;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.section-alt .card {
  background: var(--paper);
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.card-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 20px;
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card p {
  color: var(--muted);
  flex: 1;
}

.card-link {
  font-weight: 600;
  text-decoration: none;
}

.card-link::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
}

.steps {
  display: grid;
  gap: 28px 24px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: paso;
}

.steps li {
  counter-increment: paso;
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}

.steps li::before {
  content: "0" counter(paso);
  display: block;
  font: 700 0.9rem var(--display);
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 10px;
}

.steps p,
.features p {
  color: var(--muted);
  margin: 0;
}

.features {
  display: grid;
  gap: 32px 40px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.features > div {
  padding-left: 20px;
  border-left: 3px solid var(--accent-soft);
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px 32px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.checklist li {
  position: relative;
  padding-left: 34px;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.28em;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-soft);
}

.checklist li::after {
  content: "";
  position: absolute;
  left: 7px;
  top: calc(0.28em + 6px);
  width: 8px;
  height: 5px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.checklist strong {
  display: block;
}

.checklist span {
  color: var(--muted);
}

/* Preguntas frecuentes */

.faq {
  max-width: 800px;
}

.faq details {
  border-bottom: 1px solid var(--line);
}

.faq details:first-of-type {
  border-top: 1px solid var(--line);
}

.faq summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  font: 600 1.1rem/1.35 var(--display);
  cursor: pointer;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::after {
  content: "+";
  flex: none;
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1;
  color: var(--accent);
  transition: transform 0.15s ease;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details p {
  color: var(--muted);
  max-width: 68ch;
  padding-bottom: 8px;
}

/* Llamado final */

.cta {
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: calc(var(--radius) * 2);
  padding: clamp(36px, 6vw, 72px);
  display: grid;
  gap: 24px;
  align-items: center;
}

@media (min-width: 820px) {
  .cta {
    grid-template-columns: 1fr auto;
  }
}

/* Tras una sección con fondo, el llamado final necesita su propio aire arriba. */
.section-alt + .wrap {
  margin-top: clamp(56px, 8vw, 104px);
}

.cta h2 {
  margin-bottom: 0.3em;
}

.cta p {
  margin: 0;
  opacity: 0.88;
  max-width: 52ch;
}

/* Páginas interiores */

.page-hero {
  padding-block: clamp(36px, 6vw, 72px) clamp(32px, 5vw, 56px);
}

.page-hero h1 {
  max-width: 20ch;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  font-size: 0.9rem;
  color: var(--muted);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.breadcrumb a {
  color: var(--muted);
}

.prose {
  max-width: 68ch;
}

.prose h2 {
  margin-top: 1.6em;
  font-size: 1.5rem;
}

.prose ul {
  padding-left: 1.2em;
}

.prose li {
  margin-bottom: 0.5em;
}

/* Contacto */

.contact {
  display: grid;
  gap: 40px;
}

@media (min-width: 900px) {
  .contact {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.form {
  display: grid;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(22px, 4vw, 36px);
}

.form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
  font-size: 0.97rem;
}

.form input,
.form select,
.form textarea {
  font: inherit;
  font-weight: 400;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 13px 14px;
  width: 100%;
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-note {
  font-size: 0.88rem;
  color: var(--muted);
  margin: 0;
}

.form .check {
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 12px;
  font-weight: 400;
  color: var(--muted);
}

.form .check input {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  padding: 0;
  accent-color: var(--accent);
}

/* Campo trampa contra bots: fuera de pantalla, sin foco y oculto a lectores de pantalla. */
.hp {
  position: absolute;
  left: -9999px;
}

.form-status {
  margin: 0;
  font-weight: 600;
}

.form-status:empty {
  display: none;
}

.form-status[data-kind="ok"] {
  color: var(--accent);
}

.form-status[data-kind="error"] {
  color: var(--spark);
}

.contact-side h2 {
  font-size: 1.3rem;
}

.contact-side ul {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  gap: 12px;
}

.contact-side p,
.contact-side li {
  color: var(--muted);
}

/* Pie */

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 56px 28px;
  margin-top: clamp(56px, 8vw, 104px);
  font-size: 0.96rem;
}

.footer-in {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer-in p {
  color: var(--muted);
  max-width: 34ch;
  margin-top: 14px;
}

.site-footer h2 {
  font: 600 0.82rem var(--font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.site-footer ul a {
  color: var(--ink);
  text-decoration: none;
}

.site-footer ul a:hover {
  text-decoration: underline;
}

.legal {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.legal p {
  margin: 0;
}

[hidden] {
  display: none !important;
}