:root {
  --bg: #000000;
  --surface: #0a0a0a;
  --text: #f5f5f5;
  --muted: #999999;
  --accent: #60a5fa;
  --accent-dark: #2563eb;
  --warm: #93c5fd;
  --border: rgba(96, 165, 250, 0.18);
  --radius: 14px;
  --font: 'Segoe UI', system-ui, sans-serif;
  --max: 1040px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.65; }
img { max-width: 100%; display: block; height: auto; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(var(--max), 100% - 32px); margin-inline: auto; }

.demo-bar { background: linear-gradient(90deg, #1e3a8a, #1e40af); color: #fff; font-size: 0.82rem; text-align: center; padding: 8px 16px; }
.demo-bar a { color: #93c5fd; }

.site-header { position: sticky; top: 0; z-index: 100; background: rgba(0, 0, 0, 0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; gap: 12px; }
.logo { font-size: 1.3rem; font-weight: 700; color: var(--text); text-decoration: none; }
.logo:hover { text-decoration: none; opacity: 0.9; }
.logo span { color: var(--accent-dark); font-weight: 400; font-size: 0.82rem; display: block; letter-spacing: 0.12em; text-transform: uppercase; }
.site-nav { display: flex; gap: 18px; font-size: 0.9rem; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--accent-dark); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 8px; padding: 8px; cursor: pointer; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 0.92rem; border: none; cursor: pointer; text-decoration: none; transition: opacity 0.2s, transform 0.2s; }
.btn:hover { text-decoration: none; opacity: 0.92; transform: translateY(-1px); }
.btn--primary { background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%); color: #fff; box-shadow: 0 4px 20px rgba(96, 165, 250, 0.35); }
.btn--ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn--whatsapp { background: #25d366; color: #fff; }
.btn--block { width: 100%; }

.hero { padding: 56px 0 64px; text-align: center; background: transparent; position: relative; overflow: hidden; isolation: isolate; }
.hero .container { position: relative; z-index: 2; }
.hero__eyebrow { text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.75rem; color: var(--accent-dark); font-weight: 600; }
.hero h1 { font-size: clamp(2rem, 5vw, 2.75rem); line-height: 1.15; margin: 12px 0 16px; font-weight: 600; color: var(--text); }
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto 24px; font-size: 1.05rem; }
.hero__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 12px; }
.hero__trust { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; font-size: 0.85rem; color: var(--muted); margin-top: 16px; }
.hero__img { margin-top: 36px; border-radius: var(--radius); overflow: hidden; box-shadow: 0 16px 40px rgba(58,56,53,0.1); aspect-ratio: 16/9; }
.hero__img img { width: 100%; height: 100%; object-fit: cover; }

.section { padding: 64px 0; }
.section--alt { background: var(--surface); border-block: 1px solid var(--border); }
.section__header { text-align: center; margin-bottom: 40px; }
.section__header h2 { margin: 0 0 8px; font-size: 1.75rem; }
.section__header p { color: var(--muted); margin: 0 auto; max-width: 560px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; align-items: center; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.card__price { color: var(--accent-dark); font-weight: 700; margin-top: 12px; }
.card__time { font-size: 0.82rem; color: var(--muted); margin-top: 4px; }

.why-list { list-style: none; padding: 0; margin: 0; }
.why-list li { padding: 10px 0 10px 28px; position: relative; color: var(--muted); }
.why-list li::before { content: '✓'; position: absolute; left: 0; color: var(--accent-dark); font-weight: 700; }

.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testimonial-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.testimonial-card blockquote { margin: 0 0 12px; font-style: italic; font-size: 0.98rem; }
.testimonial-card cite { color: var(--muted); font-size: 0.88rem; font-style: normal; }
.testimonial-card__stars { color: var(--warm); letter-spacing: 2px; margin-bottom: 10px; font-size: 0.9rem; }

.age-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.age-tags span { background: var(--bg); border: 1px solid var(--border); padding: 6px 14px; border-radius: 999px; font-size: 0.85rem; color: var(--muted); }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; font: inherit; background: var(--bg); }
.form-group textarea { min-height: 110px; resize: vertical; }
.map-embed { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); }
.map-embed iframe { width: 100%; height: 280px; border: 0; display: block; }

.site-footer { padding: 40px 0 24px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.88rem; }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; margin-bottom: 24px; }
.site-footer h4 { color: var(--text); margin: 0 0 10px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 6px; }
.site-footer__copy { text-align: center; padding-top: 20px; border-top: 1px solid var(--border); }

.whatsapp-float { position: fixed; bottom: 24px; right: 24px; z-index: 200; background: #25d366; color: #fff; width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; box-shadow: 0 8px 24px rgba(37,211,102,0.35); text-decoration: none; }
.whatsapp-float:hover { transform: scale(1.06); text-decoration: none; }

@media (max-width: 768px) {
  .grid-3, .grid-2, .contact-grid, .testimonials-grid, .site-footer__grid { grid-template-columns: 1fr; }
  .site-nav { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: var(--surface); padding: 16px; border-bottom: 1px solid var(--border); }
  .site-nav.is-open { display: flex; }
  .nav-toggle { display: block; }
  .site-header { position: relative; }
}