/* ===== VARIABLES ===== */
:root {
  --color-primary:   #1B82B0;
  --color-primary-dark: #0E5A7D;
  --color-primary-light: #8BB8CC;
  --color-navy:      #0D1B2A;
  --color-navy-mid:  #122335;
  --color-accent:    #2DA9D8;
  --color-bg:        #F7FAFC;
  --color-white:     #FFFFFF;
  --color-text:      #1A2A3A;
  --color-text-light:#4A6070;
  --color-border:    #DDE6ED;
  --color-success:   #27AE60;

  --font-heading: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  --font-body:    'Inter', 'Segoe UI', Arial, sans-serif;

  --shadow-sm: 0 2px 8px rgba(13,27,42,0.08);
  --shadow-md: 0 6px 24px rgba(13,27,42,0.12);
  --shadow-lg: 0 16px 48px rgba(13,27,42,0.16);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --transition: 0.25s ease;
  --max-width: 1200px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===== UTILITIES ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(27,130,176,0.1);
  padding: 4px 14px;
  border-radius: 30px;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 640px;
  line-height: 1.7;
}
.section-header { margin-bottom: 56px; }
.section-header.centered { text-align: center; }
.section-header.centered .section-subtitle { margin: 0 auto; }

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--color-navy);
  transition: background var(--transition), box-shadow var(--transition);
  height: 72px;
}
#navbar.scrolled {
  background: rgba(13,27,42,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.navbar-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-logo img {
  height: 44px;
  width: auto;
}
.navbar-links {
  display: flex;
  gap: 32px;
  align-items: center;
}
.navbar-links a {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255,255,255,0.82);
  letter-spacing: 0.04em;
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.navbar-links a:hover { color: var(--color-white); }
.navbar-links a:hover::after { width: 100%; }
.navbar-cta {
  background: var(--color-primary) !important;
  color: var(--color-white) !important;
  padding: 8px 20px !important;
  border-radius: 6px;
  transition: background var(--transition) !important;
}
.navbar-cta:hover { background: var(--color-accent) !important; }
.navbar-cta::after { display: none !important; }

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.navbar-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.navbar-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar-toggle.open span:nth-child(2) { opacity: 0; }
.navbar-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 50%, #0a2540 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}
.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(27,130,176,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(45,169,216,0.1) 0%, transparent 40%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 80px 0;
}
.hero-eyebrow {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 32px; height: 2px;
  background: var(--color-accent);
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.15;
  margin-bottom: 24px;
}
.hero-title span { color: var(--color-accent); }
.hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.72);
  line-height: 1.75;
  margin-bottom: 40px;
  max-width: 480px;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(45,169,216,0.35);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(255,255,255,0.3);
  transition: all var(--transition);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.6);
  color: var(--color-white);
}
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-logo-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  backdrop-filter: blur(10px);
  text-align: center;
}
.hero-logo-card img {
  width: 340px;
  max-width: 100%;
}
.hero-logo-subtitle {
  margin-top: 20px;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
}
.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-accent);
}
.hero-stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin-top: 2px;
}

/* ===== ABOUT ===== */
#quienes-somos {
  padding: 100px 0;
  background: var(--color-white);
}
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-bottom: 80px;
}
.about-text p {
  font-size: 1.05rem;
  color: var(--color-text-light);
  line-height: 1.8;
}
.about-stripe {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.value-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.value-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--color-primary-light); }
.value-card:hover::before { transform: scaleX(1); }
.value-icon {
  width: 48px; height: 48px;
  background: rgba(27,130,176,0.1);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  font-size: 22px;
}
.value-card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
}
.value-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== SERVICES ===== */
#servicios {
  padding: 100px 0;
  background: var(--color-bg);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  cursor: default;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-card-accent {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}
.service-card:hover .service-card-accent { opacity: 1; }
.service-icon-wrap {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, rgba(27,130,176,0.12), rgba(45,169,216,0.08));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  transition: background var(--transition);
}
.service-card:hover .service-icon-wrap {
  background: linear-gradient(135deg, rgba(27,130,176,0.2), rgba(45,169,216,0.15));
}
.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 12px;
  line-height: 1.3;
}
.service-card p {
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.7;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}
.service-tag {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--color-primary);
  background: rgba(27,130,176,0.08);
  padding: 3px 10px;
  border-radius: 20px;
}

/* ===== CONTACT ===== */
#contacto {
  padding: 100px 0;
  background: var(--color-white);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.contact-info h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 16px;
}
.contact-info p {
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 36px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-item-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(27,130,176,0.1);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.contact-item-text span {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 2px;
}
.contact-item-text p {
  margin: 0;
  color: var(--color-text);
  font-size: 0.95rem;
}

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27,130,176,0.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 24px;
}
.form-check input { width: auto; margin-top: 3px; }
.form-check label {
  font-size: 0.82rem;
  color: var(--color-text-light);
  line-height: 1.5;
}
.form-check a { color: var(--color-primary); text-decoration: underline; }
.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  letter-spacing: 0.04em;
}
.btn-submit:hover {
  opacity: 0.92;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27,130,176,0.3);
}
.form-success {
  display: none;
  text-align: center;
  padding: 32px;
  color: var(--color-success);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
}

/* ===== FOOTER ===== */
#footer {
  background: var(--color-navy);
  color: rgba(255,255,255,0.6);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 0 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand img {
  height: 40px;
  width: auto;
  margin-bottom: 20px;
}
.footer-brand p {
  font-size: 0.87rem;
  line-height: 1.7;
  max-width: 280px;
}
.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-white);
  margin-bottom: 20px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-legal-links {
  display: flex;
  gap: 24px;
}
.footer-legal-links a {
  color: rgba(255,255,255,0.45);
  transition: color var(--transition);
}
.footer-legal-links a:hover { color: var(--color-accent); }

/* ===== AVISO LEGAL MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  backdrop-filter: blur(4px);
  overflow-y: auto;
  padding: 40px 20px;
}
.modal-overlay.open { display: flex; justify-content: center; align-items: flex-start; }
.modal-box {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  max-width: 800px;
  width: 100%;
  padding: 48px 40px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-close {
  position: absolute;
  top: 20px; right: 20px;
  width: 36px; height: 36px;
  background: var(--color-bg);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: var(--color-text);
  cursor: pointer;
  transition: background var(--transition);
}
.modal-close:hover { background: var(--color-border); }
.modal-box h2 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 24px;
}
.modal-box h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-top: 24px;
  margin-bottom: 10px;
}
.modal-box p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 12px;
}

/* ===== SCROLL TO TOP ===== */
#scroll-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 44px; height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  font-size: 18px;
  z-index: 500;
}
#scroll-top.visible { opacity: 1; transform: translateY(0); pointer-events: all; }
#scroll-top:hover { background: var(--color-accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-visual { display: none; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .about-stripe { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 768px) {
  .navbar-links { display: none; flex-direction: column; gap: 0; position: absolute; top: 72px; left: 0; right: 0; background: var(--color-navy); padding: 20px 0; box-shadow: var(--shadow-md); }
  .navbar-links.open { display: flex; }
  .navbar-links a { padding: 14px 24px; }
  .navbar-links a::after { display: none; }
  .navbar-toggle { display: flex; }
  .about-stripe { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
}