:root {
  --bg: #0b1020;
  --bg-alt: #0f172a;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --primary: #06b6d4;
  --primary-2: #22d3ee;
  --card: #111827;
  --border: #1f2937;
  --ring: 0 0 0 3px rgba(34, 211, 238, 0.25);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --text: #0f172a;
    --muted: #475569;
    --card: #ffffff;
    --border: #e2e8f0;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); }

img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, [role="tab"]:focus-visible { outline: var(--primary) solid 2px; box-shadow: var(--ring); border-radius: 6px; }
  body {
      background-image: url('./assets/background_v3.jpg');
      background-size: cover;
      background-position: center;
      background-repeat: no-repeat;
    }
.visually-hidden { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); border: 0; }
.skip-link { position: absolute; left: -999px; top: -999px; background: var(--primary); color: #03141a; padding: 8px 12px; border-radius: 8px; }
.skip-link:focus { left: 16px; top: 16px; z-index: 9999; }

.container { width: min(1120px, 92%); margin-inline: auto; }

.header { position: sticky; top: 0; z-index: 50; transition: background .3s, border-color .3s; background: color-mix(in srgb, var(--bg) 88%, transparent); border-bottom: 1px solid transparent; backdrop-filter: saturate(120%) blur(8px); }
.header.elevated { border-color: var(--border); }
.header__inner { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 14px 0; }
.logo img { display: block; }

.nav__toggle { display: none; }
.nav__list { display: flex; gap: 20px; list-style: none; padding: 0; margin: 0; }
.nav__list a { padding: 8px 10px; border-radius: 8px; color: var(--muted); }
.nav__list a:hover { color: var(--text); background: var(--bg-alt); }

.header__cta { display: flex; gap: 10px; align-items: center; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 18px; border-radius: 12px; font-weight: 700; transition: transform .15s ease, background .2s; }
.btn--primary { background: linear-gradient(90deg, var(--primary), var(--primary-2)); color: #03141a; }
.btn--primary:hover { transform: translateY(-2px); }
.btn--ghost, .btn--outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn--outline:hover, .btn--ghost:hover { background: var(--bg-alt); }

.hero { position: relative; overflow: clip; padding: clamp(48px, 10vw, 120px) 0; }
.hero__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.hero__copy h1 { font-size: clamp(28px, 4vw, 48px); line-height: 1.1; margin: 0 0 12px; font-weight: 800; letter-spacing: -0.02em; }
.hero__copy p { color: var(--muted); font-size: clamp(16px, 2vw, 18px); margin: 0 0 18px; }
.hero__cta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.trust { display: flex; align-items: center; gap: 14px; margin-top: 18px; flex-wrap: wrap; }
.trust img { height: 24px; opacity: .8; filter: grayscale(1) contrast(1.2); }
.rating { color: var(--primary-2); font-weight: 700; }

.hero__visual { position: relative; }
.hero__visual img { border-radius: 18px; box-shadow: 0 10px 40px rgba(0,0,0,.35); }
.hero__glow { position: absolute; inset: -20%; background: radial-gradient(60% 60% at 60% 40%, color-mix(in srgb, var(--primary) 34%, transparent), transparent 60%); pointer-events: none; filter: blur(60px); opacity: .6; }

.section { padding: clamp(48px, 7vw, 92px) 0; }
.section.alt { background: var(--bg-alt); }
.section__head { text-align: center; margin-bottom: 28px; }
.section__head h2 { font-size: clamp(24px, 3.2vw, 36px); margin: 0 0 8px; }
.section__head p { color: var(--muted); margin: 0; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.card { background: var(--card); border: 1px solid var(--border); padding: 22px; border-radius: 16px; transition: transform .2s, border-color .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: 0 10px 24px rgba(0,0,0,.15); }
.card h3 { margin: 12px 0 6px; font-size: 18px; }
.card p { color: var(--muted); margin: 0; }
.card img { width: 32px; height: 32px; }

.steps { list-style: none; display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; padding: 0; margin: 0; counter-reset: step; }
.steps li { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; display: grid; gap: 6px; }
.steps li strong::before { counter-increment: step; content: counter(step) ". "; color: var(--primary-2); }

.filters { display: flex; gap: 10px; justify-content: center; margin-bottom: 16px; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); background: var(--card); padding: 8px 14px; border-radius: 999px; color: var(--muted); cursor: pointer; }
.chip.is-active, .chip:hover { color: var(--text); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }

.grid-portfolio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.work { background: var(--card); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; display: grid; }
.work img { display: block; aspect-ratio: 4/3; object-fit: cover; }
.work figcaption { padding: 14px; display: grid; gap: 6px; }
.link { background: none; color: var(--primary-2); border: none; text-decoration: underline; cursor: pointer; padding: 0; width: max-content; }

.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.case { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; }
.metrics { display: flex; gap: 14px; list-style: none; padding: 0; margin: 0 0 10px; }
.metrics strong { color: var(--primary-2); }

.testimonial { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.swiper { padding: 8px; }
.swiper-pagination-bullet { background: var(--muted); opacity: .6; }
.swiper-pagination-bullet-active { background: var(--primary-2); opacity: 1; }

.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.price { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 22px; display: grid; gap: 10px; }
.price.featured { border-color: color-mix(in srgb, var(--primary) 50%, var(--border)); box-shadow: 0 12px 30px rgba(0,0,0,.2); transform: translateY(-4px); }
.price .value { font-size: 28px; font-weight: 800; }

.faq details { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; }
.faq details + details { margin-top: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq summary::-webkit-details-marker { display: none; }

.form { display: grid; gap: 12px; max-width: 600px; margin: 0 auto; }
.form input, .form select, .form textarea { background: var(--card); color: var(--text); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.form input::placeholder, .form textarea::placeholder { color: var(--muted); }
.form .check { display: flex; gap: 8px; align-items: flex-start; color: var(--muted); }
.form__actions { display: flex; align-items: center; gap: 12px; margin-top: 6px; }
.form__status { color: var(--muted); min-height: 20px; }
.hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }

.footer { background: var(--bg-alt); border-top: 1px solid var(--border); margin-top: 32px; }
.footer__grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; padding: 24px 0; }
.footer__grid nav a { display: inline-block; color: var(--muted); padding: 6px 0; }
.footer__grid nav a:hover { color: var(--text); }
.footer__copy { border-top: 1px solid var(--border); padding: 12px 0 20px; color: var(--muted); text-align: center; }

.whatsapp { position: fixed; right: 18px; bottom: 18px; width: 52px; height: 52px; display: grid; place-items: center; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #03141a; text-decoration: none; box-shadow: 0 10px 20px rgba(0,0,0,.25); z-index: 60; }

@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .grid-portfolio { grid-template-columns: repeat(2, 1fr); }
  .cases { grid-template-columns: 1fr; }
  .pricing { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav__toggle { display: inline-flex; border: 1px solid var(--border); background: var(--card); padding: 8px 12px; border-radius: 10px; }
  .nav__list { position: absolute; inset: 64px 0 auto 0; background: var(--bg); padding: 10px 16px; border-bottom: 1px solid var(--border); display: none; }
  .nav__list.open { display: grid; gap: 10px; }
}