/* =============================================================
   Business Templates Collection — Landing
   HTML/CSS/JS vanilla · minimalista premium
   ============================================================= */

:root {
  --ink:    #15181B;
  --paper:  #FAFAF8;
  --surface:#FFFFFF;
  --muted:  #6B7177;
  --line:   #E6E5DF;
  --accent: #15181B;
  --maxw: 1160px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 14px;
  --section-y: clamp(4rem, 9vw, 7.5rem);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Space Mono", monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 4px 16px rgba(21,24,27,0.06);
  --shadow-md: 0 18px 50px rgba(21,24,27,0.12);
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
img, svg { display: block; max-width: 100%; }
ul[class] { list-style: none; padding: 0; }
a { color: inherit; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); }
.section--alt { background: var(--surface); border-block: 1px solid var(--line); }

h1, h2, h3 { line-height: 1.08; letter-spacing: -0.02em; font-weight: 800; }

.eyebrow, .index-label {
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 1rem;
}

.skip-link { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 0.7rem 1.2rem; z-index: 200; }
.skip-link:focus { left: 0; }

a:focus-visible, button:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 4px; }

/* --- Botones --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
  padding: 0.8rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; cursor: pointer; border: 1.5px solid transparent;
  transition: transform var(--ease) 0.2s, background-color 0.2s, color 0.2s, border-color 0.2s;
}
.btn--lg { padding: 0.95rem 1.9rem; font-size: 1rem; }
.btn--solid { background: var(--ink); color: #fff; }
.btn--solid:hover { transform: translateY(-2px); background: #000; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--ink); transform: translateY(-2px); }

/* --- Header --- */
.header { position: sticky; top: 0; z-index: 100; background: rgba(250,250,248,0.8); backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color 0.3s; }
.header.is-scrolled { border-bottom-color: var(--line); }
.header__inner { display: flex; align-items: center; justify-content: space-between; padding-block: 1rem; }
.brand { font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; text-decoration: none; }
.brand span { color: var(--muted); font-weight: 600; }
.nav { display: flex; align-items: center; gap: 0.5rem; }
.nav__link { text-decoration: none; color: var(--ink); font-weight: 500; padding: 0.5rem 0.9rem; border-radius: 999px; transition: background-color 0.2s; }
.nav__link:hover { background: rgba(21,24,27,0.06); }

/* --- Hero --- */
.hero { padding-top: clamp(3.5rem, 9vw, 7rem); padding-bottom: clamp(3rem, 7vw, 5rem); }
.hero__inner { max-width: 880px; }
.hero__title { font-size: clamp(2.6rem, 7vw, 5rem); margin-bottom: 1.5rem; }
.hero__lead { font-size: 1.2rem; color: var(--muted); max-width: 60ch; margin-bottom: 2.2rem; }
.hero__lead strong { color: var(--ink); font-weight: 600; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 2.8rem; }
.hero__stats { display: flex; flex-wrap: wrap; gap: 2rem; color: var(--muted); font-size: 0.95rem; }
.hero__stat-num { font-family: var(--mono); font-weight: 700; font-size: 1.5rem; color: var(--ink); margin-right: 0.4rem; }

/* --- Section head --- */
.section__head { max-width: 640px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section__title { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 0.9rem; }
.section__sub { color: var(--muted); font-size: 1.08rem; }

/* --- Cards (plantillas en vivo) --- */
.cards { display: grid; grid-template-columns: 1fr; gap: clamp(1.5rem, 3vw, 2.25rem); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease); }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card__preview { display: block; aspect-ratio: 16 / 10; overflow: hidden; border-bottom: 1px solid var(--line); background: var(--paper); }
.card__preview img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.card:hover .card__preview img { transform: scale(1.03); }
.card__body { padding: clamp(1.5rem, 3vw, 2rem); }
.card__tag { font-family: var(--mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 0.6rem; }
.card__title { font-size: 1.35rem; margin-bottom: 0.7rem; }
.card__text { color: var(--muted); margin-bottom: 1.2rem; }
.card__chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.6rem; }
.card__chips li { font-size: 0.8rem; font-weight: 500; padding: 0.35rem 0.75rem; border: 1px solid var(--line); border-radius: 999px; color: var(--ink); }
.card__cta { width: 100%; }

/* --- Próximamente --- */
.soon { display: grid; grid-template-columns: 1fr; gap: 0.85rem; }
.soon__item { display: flex; align-items: center; justify-content: space-between; padding: 1.15rem 1.4rem; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.soon__name { font-weight: 600; }
.soon__badge { font-family: var(--mono); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 0.25rem 0.7rem; }

/* --- Footer --- */
.footer { border-top: 1px solid var(--line); padding-block: clamp(2.5rem, 5vw, 4rem); }
.footer__inner { display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; }
.brand--footer { font-size: 1.3rem; text-decoration: none; }
.footer__text { color: var(--muted); }
.footer__links { display: flex; flex-wrap: wrap; gap: 1.5rem; }
.footer__links a { text-decoration: none; color: var(--ink); font-weight: 500; }
.footer__links a:hover { color: var(--muted); }
.footer__copy { font-family: var(--mono); font-size: 0.82rem; color: var(--muted); }

/* --- Reveal --- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* --- Responsive --- */
@media (min-width: 720px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .soon { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { flex-direction: row; flex-wrap: wrap; align-items: center; justify-content: space-between; }
}
@media (min-width: 1000px) {
  .soon { grid-template-columns: repeat(3, 1fr); }
}

/* --- Página de contacto --- */
.contact-hero { padding-top: clamp(3.5rem, 9vw, 6rem); padding-bottom: clamp(2rem, 5vw, 3rem); }
.services { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.service { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.service h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.service p { color: var(--muted); font-size: 0.96rem; }
.contact-grid { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 3rem); align-items: start; }
.contact-aside p { color: var(--muted); }
.contact-email { display: inline-block; margin-top: 1.1rem; font-weight: 600; text-decoration: none; border-bottom: 2px solid var(--ink); padding-bottom: 2px; }
.contact-form { display: grid; gap: 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.5rem, 3vw, 2rem); }
.contact-form .field { display: flex; flex-direction: column; gap: 0.4rem; }
.contact-form label { font-size: 0.9rem; font-weight: 600; }
.contact-form input, .contact-form select, .contact-form textarea { padding: 0.8rem 1rem; border: 1.5px solid var(--line); border-radius: 10px; font: inherit; color: var(--ink); background: var(--paper); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(21,24,27,0.08); }
.contact-feedback { margin: 0; font-size: 0.9rem; color: var(--muted); font-weight: 500; }
@media (min-width: 720px) {
  .services { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 0.9fr 1.1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; animation-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
}