/* --- Variables de Color (extraídas de tu logo) --- */
:root {
  --bg-color: #2c2c2c;       /* Gris oscuro del fondo del logo */
  --brand-green: #6aa828;   /* Verde exacto de la tipografía 3DV */
  --text-main: #f0f0f0;     /* Gris muy claro para texto legible */
  --text-muted: #a0a0a0;    /* Gris medio para descripciones */
  --card-bg: #383838;       /* Gris ligeramente más claro para tarjetas */
  --border-color: #4a4a4a;  /* Gris para bordes sutiles */
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Header --- */
header {
  padding: 60px 0 40px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.brand-logo {
  font-size: 64px;
  font-weight: 800;
  color: var(--brand-green);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 10px;
}

.tagline {
  font-size: 18px;
  font-weight: 600;
  color: var(--brand-green);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --- Servicios (Grid) --- */
.services {
  padding: 60px 0;
}

h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--brand-green);
  text-align: center;
  margin-bottom: 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background-color: var(--card-bg);
  padding: 25px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--brand-green);
}

.card h3 {
  font-size: 18px;
  color: var(--brand-green);
  margin-bottom: 10px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 15px;
  min-height: 60px; /* Para alinear botones si los pones */
}

.price-ref {
  font-size: 16px;
  font-weight: 700;
  color: var(--brand-green);
}

/* --- Sección de Contacto (Formulario) --- */
.contact-section {
  padding: 0 0 80px;
}

.contact-container {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.contact-container p {
  color: var(--text-muted);
  margin-bottom: 25px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input,
.contact-form textarea {
  padding: 12px;
  background-color: rgba(0,0,0,0.2);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-main);
  font-family: inherit;
}

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

.btn-contact {
  background-color: var(--brand-green);
  color: var(--bg-color); /* Texto oscuro sobre fondo verde */
  border: none;
  padding: 12px 20px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.btn-contact:hover {
  opacity: 0.9;
}

/* --- Footer --- */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.footer-logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--brand-green);
}

/* --- Responsividad --- */
@media (max-width: 600px) {
  .brand-logo { font-size: 48px; }
  .tagline { font-size: 14px; }
  h2 { font-size: 28px; }
}