/* ===== Variables ===== */
:root {
  --color-dark: #1b3a4b;
  --color-dark-alt: #24495c;
  --color-accent: #e07a3a;
  --color-accent-hover: #c96828;
  --color-light: #f5f7f9;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-light: #ffffffdd;
  --font-main: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max-width: 1100px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-main); color: var(--color-text); line-height: 1.6; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.hidden { display: none !important; }

/* ===== Logo ===== */
.logo { display: flex; align-items: center; gap: 0.75rem; }
.logo__diamond {
  width: 44px; height: 44px;
  background: var(--color-dark);
  transform: rotate(45deg);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo__diamond span {
  transform: rotate(-45deg);
  color: var(--color-accent);
  font-weight: 700; font-size: 0.9rem;
}
.logo__text { display: flex; flex-direction: column; line-height: 1.2; }
.logo__text strong { font-size: 1.1rem; text-transform: uppercase; letter-spacing: 0.05em; }
.logo__text small { font-size: 0.65rem; text-transform: uppercase; color: var(--color-accent); letter-spacing: 0.03em; }
.logo--small .logo__diamond { width: 32px; height: 32px; }
.logo--small .logo__diamond span { font-size: 0.7rem; }
.logo--small .logo__text strong { font-size: 0.9rem; }

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-white);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav { display: flex; gap: 2rem; }
.nav a {
  font-size: 0.95rem; font-weight: 500;
  transition: color 0.2s;
}
.nav a:hover { color: var(--color-accent); }

.menu-toggle {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 5px; padding: 4px;
}
.menu-toggle span {
  display: block; width: 24px; height: 2px; background: var(--color-dark);
  transition: 0.2s;
}

/* ===== Hero ===== */
.hero {
  background: var(--color-dark);
  color: var(--color-white);
  padding: 6rem 0;
}
.hero__inner { max-width: 640px; }
.hero h1 { font-size: 2.5rem; line-height: 1.15; margin-bottom: 1rem; }
.hero p { font-size: 1.15rem; color: var(--color-text-light); margin-bottom: 2rem; }

/* ===== Button ===== */
.btn {
  display: inline-block;
  background: var(--color-accent); color: var(--color-white);
  padding: 0.75rem 1.75rem;
  border: none; border-radius: 4px;
  font-size: 1rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
}
.btn:hover { background: var(--color-accent-hover); }

/* ===== Servicios ===== */
.servicios { padding: 5rem 0; background: var(--color-light); }
.servicios h2 {
  font-size: 2rem; text-align: center;
  margin-bottom: 3rem; color: var(--color-dark);
}
.servicios__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}
.servicio-card {
  background: var(--color-white);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: box-shadow 0.2s;
}
.servicio-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.servicio-card h3 {
  font-size: 1.15rem; color: var(--color-dark);
  margin-bottom: 0.5rem;
}
.servicio-card__subtitle {
  font-size: 0.85rem; color: var(--color-accent);
  text-transform: uppercase; letter-spacing: 0.03em;
  margin-bottom: 0.75rem;
}
.servicio-card ul { padding-left: 1.25rem; list-style: disc; }
.servicio-card li {
  font-size: 0.95rem; color: #555;
  margin-bottom: 0.35rem;
}

/* ===== Contacto ===== */
.contacto { padding: 5rem 0; background: var(--color-dark); color: var(--color-white); }
.contacto__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contacto h2 { font-size: 2rem; margin-bottom: 1rem; }
.contacto__info p { color: var(--color-text-light); margin-bottom: 2rem; }
.contacto__datos { display: flex; flex-direction: column; gap: 0.75rem; }
.contacto__datos li { display: flex; align-items: center; gap: 0.75rem; }
.contacto__datos a {
  color: var(--color-text-light);
  transition: color 0.2s;
}
.contacto__datos a:hover { color: var(--color-accent); }
.contacto__datos svg { color: var(--color-accent); flex-shrink: 0; }

.contacto__form {
  display: flex; flex-direction: column; gap: 1rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group label { font-size: 0.85rem; font-weight: 500; color: var(--color-text-light); }
.form-group input,
.form-group textarea {
  padding: 0.65rem 0.75rem;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  background: rgba(255,255,255,0.08);
  color: var(--color-white);
  font-family: inherit; font-size: 0.95rem;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-group textarea { resize: vertical; }

/* ===== Footer ===== */
.footer {
  background: #142d3b;
  color: var(--color-text-light);
  padding: 2rem 0;
}
.footer__inner {
  display: flex; align-items: center; justify-content: space-between;
}
.footer__inner .logo__text strong { color: var(--color-white); }
.footer p { font-size: 0.8rem; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  .nav {
    display: none; flex-direction: column;
    position: absolute; top: 64px; left: 0; right: 0;
    background: var(--color-white);
    padding: 1rem 1.5rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
    gap: 1rem;
  }
  .nav--open { display: flex; }
  .hero { padding: 4rem 0; }
  .hero h1 { font-size: 1.75rem; }
  .servicios__grid { grid-template-columns: 1fr; }
  .contacto__inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer__inner { flex-direction: column; gap: 0.75rem; text-align: center; }
}