:root {
    --color-azul: #003366;
    --color-turquesa: #00a79d;
    --color-dorado: #f0e68c;
    --color-gris: #f4f4f4;
    --color-blanco: #ffffff;
    --color-negro: #333;
    --color-texto: #555;
    --color-turquesa-light: rgba(0, 167, 157, 0.1);
    --color-gris-medio: #e0e0e0;
    
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Times New Roman';
    font-size: clamp(1.1rem, 1.5vw, 1.3rem);
    color: var(--color-azul);
    background-color: var(--color-blanco);
    line-height: 1.6;
}

img {
    max-width: 100%;
    display: block;
}

/* Tipografía */
h1, h2, h3, h4 {
    font-weight: 800;
    color: var(--color-azul);
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    letter-spacing: -0.015em;
}

.body--narrow { 
    max-width: 46ch; 
    margin-inline: auto; 
}

/* Contenedores */
.container { 
    width: min(90%, 1280px);
    margin: 0 auto; 
    padding: 0 1.5rem; 
}

.section { 
    padding: clamp(4rem, 7vw, 6rem) 0; 
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-azul);
    color: var(--color-blanco);
    font-weight: 700;
    text-decoration: none;
    padding: 0.85rem 1.75rem;
    border-radius: 999px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 2px solid transparent;
    font-size: 1rem;
    gap: 0.5rem;
    cursor: pointer;
}

.btn:hover { 
    transform: translateY(-3px); 
    background: #002b55;
    box-shadow: var(--shadow-lg);
}

/* ===== Oceanographic Services ===== */
#oceanographic-services h2 {
  color: var(--color-turquesa);
  border-left: 6px solid var(--color-azul);
  padding-left: .75rem;
  margin-bottom: 1rem;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
}

#oceanographic-services p {
  color: var(--color-texto);
  margin-bottom: 1.2rem;
}

#oceanographic-services .service-list {
  list-style: none;
  margin-top: 1.5rem;
  display: grid;
  gap: 1rem;
}

#oceanographic-services .service-list li {
  background: var(--color-turquesa-light);
  border-left: 4px solid var(--color-turquesa);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

#oceanographic-services .service-list li:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-md);
  background: var(--color-gris);
}

/* Olas SVG decorativas */
#oceanographic-services .service-graphics {
  margin-top: 2rem;
}

#oceanographic-services .wave-svg {
  width: 100%;
  height: 90px;
  display: block;
  margin-bottom: 1rem;
}

#oceanographic-services .wave-svg path {
  fill: var(--color-azul);
  opacity: .08;
}

/* Fila de íconos minimalistas */
#oceanographic-services .icon-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(140px, 1fr));
  gap: 1rem;
}

#oceanographic-services .icon-card {
  background: var(--color-blanco);
  border: 1px solid var(--color-gris-medio);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1rem;
  text-align: center;
  transition: var(--transition);
}

#oceanographic-services .icon-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

#oceanographic-services .icon-card svg {
  width: 40px;
  height: 40px;
  display: block;
  margin: 0 auto .5rem;
  stroke: var(--color-azul);
  fill: none;
  stroke-width: 2;
}

#oceanographic-services .icon-card span {
  display: block;
  font-weight: 700;
  color: var(--color-azul);
  font-size: .95rem;
}

/* Responsive */
@media (max-width: 768px) {
  #oceanographic-services .icon-row {
    grid-template-columns: repeat(2, 1fr);
  }
}