/* ---------- Tokens ---------- */
:root {
  --bg: #ffffff;
  --bg-alt: #f6f6f4;
  --text: #16181c;
  --muted: #6b7078;
  --line: #e4e4e1;
  --accent: #16181c;
  --wa: #25d366;
  --wa-dark: #1eb356;
  --radius: 14px;
  --maxw: 1080px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1113;
    --bg-alt: #15181b;
    --text: #edeef0;
    --muted: #9aa0a8;
    --line: #262b30;
    --accent: #edeef0;
  }
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 .5rem; font-weight: 600; }
h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1rem; }
a { color: inherit; text-decoration: none; }

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

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 20px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--text); color: var(--bg); padding: .6rem 1rem;
}
.skip-link:focus { left: 8px; top: 8px; }

:focus-visible { outline: 2px solid var(--wa); outline-offset: 3px; border-radius: 4px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.4rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .95rem; font-weight: 500; cursor: pointer;
  transition: transform .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
  font-family: inherit;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-wa { background: var(--wa); color: #06231a; }
.btn-wa:hover { background: var(--wa-dark); }

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

.btn-sm { padding: .5rem 1rem; font-size: .85rem; background: var(--text); color: var(--bg); }
.btn-block { width: 100%; }

.ico { width: 20px; height: 20px; fill: currentColor; flex: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; gap: 1rem; }

.logo { display: inline-flex; align-items: center; gap: .55rem; font-weight: 600; letter-spacing: -.01em; }
.logo-thin { font-weight: 400; color: var(--muted); margin-left: .3rem; }
.logo-mark {
  width: 14px; height: 14px; border-radius: 3px;
  background: var(--wa);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--wa) 18%, transparent);
}

.nav { display: flex; align-items: center; gap: 1.5rem; font-size: .92rem; }
.nav a { color: var(--muted); transition: color .18s var(--ease); }
.nav a:hover { color: var(--text); }
.nav .btn { color: var(--bg); }

@media (max-width: 720px) {
  .nav a:not(.btn) { display: none; }
  .logo-thin { display: none; }
}

/* ---------- Hero ---------- */
.hero { padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(3rem, 7vw, 4.5rem); }
.hero-inner {
  display: grid;
  gap: clamp(2.25rem, 5vw, 3.5rem);
  align-items: center;
  grid-template-areas: "copy" "figure" "stats";
}
.hero-copy { grid-area: copy; }
.hero-figure { grid-area: figure; }
.hero-stats { grid-area: stats; }
.hero-copy h1 { max-width: 18ch; text-wrap: balance; }

.hero-figure { margin: 0; }
.hero-figure img {
  display: block; width: 100%; height: auto;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid var(--line);
  box-shadow: 0 18px 44px rgba(0, 0, 0, .1);
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.15fr .85fr;
    grid-template-areas:
      "copy   figure"
      "stats  stats";
    column-gap: clamp(2.5rem, 5vw, 4rem);
    row-gap: 0;
  }
  /* el titular vive en media columna: se ajusta a ella, no al viewport */
  .hero-copy h1 { font-size: clamp(2.1rem, 4.4vw, 3.1rem); max-width: none; }
}

.eyebrow {
  font-size: .78rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1.1rem;
}
.lead { font-size: clamp(1rem, 1.9vw, 1.15rem); color: var(--muted); max-width: 54ch; margin-top: 1.25rem; }

.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: clamp(1.25rem, 3vw, 2.75rem);
  list-style: none; margin: clamp(2.25rem, 4vw, 3rem) 0 0; padding: 1.75rem 0 0;
  border-top: 1px solid var(--line);
}
.hero-stats strong { display: block; font-size: 1.5rem; font-weight: 600; letter-spacing: -.02em; }
.hero-stats span { font-size: .85rem; color: var(--muted); }

/* ---------- Sections ---------- */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }

.section-head { max-width: 52ch; margin-bottom: 2.75rem; }
.section-head p { color: var(--muted); margin: 0; }

/* ---------- Cards ---------- */
.grid { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); }

.card {
  display: flex; flex-direction: column;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg); overflow: hidden;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.card:hover { border-color: color-mix(in srgb, var(--text) 35%, transparent); transform: translateY(-2px); }

.card-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-alt); }
.card-img {
  display: block; width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .45s var(--ease);
}
.card:hover .card-img { transform: scale(1.04); }

.tag {
  position: absolute; top: 12px; left: 12px;
  background: var(--bg); color: var(--text);
  font-size: .72rem; font-weight: 500; letter-spacing: .04em; text-transform: uppercase;
  padding: .3rem .6rem; border-radius: 999px;
}

.card-body { padding: 1.2rem 1.25rem .5rem; flex: 1; }
.card-meta { color: var(--muted); font-size: .88rem; margin: 0 0 .6rem; }
.card-price { font-weight: 600; font-size: 1.05rem; margin: 0; }

.card-cta {
  margin: 0 1.25rem 1.25rem;
  padding: .7rem 1rem;
  text-align: center; font-size: .88rem; font-weight: 500;
  border: 1px solid var(--line); border-radius: 999px;
  cursor: pointer;
  transition: background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.card-cta:hover { background: var(--wa); border-color: var(--wa); color: #06231a; }

/* ---------- Steps ---------- */
.steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  counter-reset: none;
}
.steps li > p { color: var(--muted); margin: 0; font-size: .95rem; }
.step-num {
  display: block; font-size: .8rem; letter-spacing: .12em;
  color: var(--muted); margin-bottom: .75rem;
  padding-top: .75rem; border-top: 2px solid var(--text);
  width: 2.5rem;
}

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid; gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 880px) {
  .contact-grid { grid-template-columns: 1fr 1.1fr; }
}
.contact-copy p { color: var(--muted); max-width: 42ch; }
.contact-list { list-style: none; margin: 2rem 0 0; padding: 0; font-size: .92rem; color: var(--muted); }
.contact-list li { display: flex; gap: .65rem; align-items: baseline; margin-bottom: .7rem; }
.contact-list a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Form ---------- */
.form {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 1.9rem);
  background: var(--bg-alt);
}
.section .form { background: var(--bg-alt); }

.field { display: flex; flex-direction: column; margin-bottom: 1rem; }
.field-row { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 520px) { .field-row { grid-template-columns: 1fr; } }

.field label { font-size: .85rem; font-weight: 500; margin-bottom: .4rem; }
.opt { color: var(--muted); font-weight: 400; }

.field input,
.field select,
.field textarea {
  font: inherit; font-size: .95rem;
  color: var(--text); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px;
  padding: .7rem .85rem;
  width: 100%;
  transition: border-color .18s var(--ease);
}
.field textarea { resize: vertical; min-height: 84px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--wa); }
.field input::placeholder, .field textarea::placeholder { color: color-mix(in srgb, var(--muted) 75%, transparent); }
.field input[aria-invalid="true"] { border-color: #d9534f; }

.form-error { color: #d9534f; font-size: .85rem; margin: 0 0 .75rem; }
.form-note { font-size: .78rem; color: var(--muted); text-align: center; margin: .9rem 0 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 2rem 0; font-size: .88rem; color: var(--muted); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
.site-footer p { margin: 0; }
.footer-links { display: flex; gap: 1.25rem; }
.footer-links a { cursor: pointer; }
.footer-links a:hover { color: var(--text); }

/* ---------- Botón flotante ---------- */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 60;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--wa); color: #06231a;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .18);
  cursor: pointer;
  transition: transform .2s var(--ease), background-color .2s var(--ease);
}
.wa-float:hover { transform: scale(1.06); background: var(--wa-dark); }
.wa-float svg { width: 28px; height: 28px; fill: currentColor; }

/* ---------- Imágenes en modo oscuro ---------- */
@media (prefers-color-scheme: dark) {
  .hero-figure img,
  .card-img { filter: brightness(.88) saturate(.95); }
}