:root {
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --accent: #111111;
  --border: #e5e5e5;
  --max-width: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-weight: 300;
}

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

h1, h2, h3 { font-weight: 500; letter-spacing: -0.02em; }

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

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
}

.logo { font-weight: 700; font-size: 1.1rem; }

.nav { display: flex; gap: 32px; }

.nav a { font-size: 0.95rem; color: var(--muted); transition: color 0.2s; }
.nav a:hover { color: var(--text); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
}

/* Hero */
.hero {
  padding: 140px 0 100px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  margin-bottom: 20px;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 480px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 32px;
  border-radius: 4px;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:hover { opacity: 0.8; }

/* Servicios */
.servicios { padding: 100px 0; border-top: 1px solid var(--border); }

.servicios h2, .nosotros h2, .contacto h2 {
  font-size: 1.8rem;
  margin-bottom: 48px;
  text-align: center;
}

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

.card {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 0.95rem; }

/* Nosotros */
.nosotros { padding: 100px 0; border-top: 1px solid var(--border); background: #fafafa; }

.nosotros-inner { max-width: 640px; text-align: center; margin: 0 auto; }

.nosotros p { color: var(--muted); }

/* Contacto */
.contacto { padding: 100px 0; border-top: 1px solid var(--border); }

.form {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form input, .form textarea {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.95rem;
  resize: none;
}

.form input:focus, .form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-status {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  color: var(--muted);
}

/* Footer */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 720px) {
  .nav { display: none; }
  .menu-toggle { display: block; }
  .grid { grid-template-columns: 1fr; }

  .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
  }
}