:root {
  --bg: #0b1320;
  --bg-alt: #101b2d;
  --surface: #16233a;
  --border: #22314c;
  --text: #eef2f8;
  --text-muted: #9fb0c9;
  --accent: #3dd6c0;
  --accent-strong: #22b8a0;
  --radius: 14px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 16px; }
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
p { margin: 0 0 16px; color: var(--text-muted); }
p.lead { font-size: 1.1rem; max-width: 560px; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 12px;
}

.center { text-align: center; margin-left: auto; margin-right: auto; }

.accent { color: var(--accent); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 19, 32, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.logo .dot { color: var(--accent); }
.logo-icon { width: 32px; height: 32px; border-radius: 8px; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a:not(.btn-nav) { color: var(--text-muted); font-weight: 500; }
.nav-links a:not(.btn-nav):hover { color: var(--text); }

.btn-nav {
  background: var(--accent);
  color: #06201c;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.burger span { width: 22px; height: 2px; background: var(--text); display: block; }

/* Hero */
.hero { padding: 90px 0 70px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 28px; }

.btn-primary {
  background: var(--accent);
  color: #06201c;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  display: inline-block;
}
.btn-primary:hover { background: var(--accent-strong); }

.btn-secondary {
  border: 1px solid var(--border);
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  display: inline-block;
  color: var(--text);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.hero-visual { display: flex; justify-content: center; }
.card-stack { position: relative; width: 100%; max-width: 320px; height: 320px; }
.mini-card {
  position: absolute;
  width: 220px;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  font-weight: 700;
  box-shadow: 0 20px 40px rgba(0,0,0,0.35);
}
.c1 { top: 0; left: 0; transform: rotate(-6deg); }
.c2 { top: 55px; left: 75px; transform: rotate(4deg); }
.c3 { top: 115px; left: 10px; transform: rotate(-3deg); }
.c4 { top: 175px; left: 85px; transform: rotate(5deg); background: #17352f; border-color: var(--accent); color: var(--accent); }

/* Servicios */
.servicios, .proceso { padding: 90px 0; }
.servicios { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.card-step {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}
.card h3 { margin-top: 12px; }

/* Proceso */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #06201c;
  font-weight: 800;
  margin-bottom: 16px;
}
.step h4 { margin-bottom: 8px; }
.step p { font-size: 0.95rem; }

/* Contacto */
.contacto { padding: 90px 0; }
.contacto-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px;
}
.contacto-cta { display: flex; flex-direction: column; gap: 14px; }
.btn-wsp { text-align: center; display: inline-block; margin-top: 8px; }

.contact-form { display: flex; flex-direction: column; gap: 12px; }
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  resize: vertical;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: var(--text-muted); }
.contact-form input:focus,
.contact-form textarea:focus { outline: none; border-color: var(--accent); }
.contact-form button { cursor: pointer; border: 1px solid var(--accent); background: transparent; color: var(--accent); font-weight: 600; }
.contact-form button:hover:not(:disabled) { background: var(--accent); color: #06201c; }
.contact-form button:disabled { opacity: 0.55; cursor: default; }
.form-status { margin: 4px 0 0; font-size: 0.9rem; min-height: 1.2em; }
.form-status.ok { color: var(--accent); }
.form-status.error { color: #ff6b6b; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-legal a { color: var(--text-muted); }
.footer-legal a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 860px) {
  .hero-grid, .contacto-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .contacto { padding: 60px 0; }
  .contacto-grid { padding: 32px; border-radius: 18px; }
}

@media (max-width: 640px) {
  .nav-links {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    display: none;
    gap: 16px;
  }
  .nav-links.open { display: flex; }
  .btn-nav { text-align: center; }
  .burger { display: flex; }
  .steps { grid-template-columns: 1fr; }
}