:root {
  --bg: #f5f5f7;
  --bg-strong: #0b1220;
  --ink: #1d1d1f;
  --muted: #6e6e73;
  --line: rgba(29, 29, 31, 0.12);
  --surface: rgba(255, 255, 255, 0.78);
  --surface-solid: #ffffff;
  --surface-dark: rgba(15, 23, 42, 0.72);
  --accent: #0a84ff;
  --accent-dark: #0066cc;
  --success: #1f8a53;
  --danger: #b42318;
  --shadow-soft: 0 18px 60px rgba(15, 23, 42, 0.12);
  --shadow-card: 0 24px 80px rgba(15, 23, 42, 0.16);
  --radius-lg: 34px;
  --radius-md: 24px;
  --radius-sm: 16px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(circle at 12% 8%, rgba(10, 132, 255, 0.16), transparent 30%),
    radial-gradient(circle at 88% 16%, rgba(255, 255, 255, 0.7), transparent 26%),
    linear-gradient(180deg, #fbfbfd 0%, #f5f5f7 45%, #eef2f7 100%);
}

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

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

a:hover {
  color: var(--accent-dark);
}

button,
input,
textarea {
  font: inherit;
}

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 12px 16px;
  border-radius: 999px;
  color: #fff;
  background: #111827;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 100;
  pointer-events: none;
}

.nav-shell {
  width: min(100% - 32px, 1120px);
  min-height: 66px;
  margin-inline: auto;
  padding: 10px 12px 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: rgba(255, 255, 255, 0.68);
  backdrop-filter: blur(26px) saturate(180%);
  -webkit-backdrop-filter: blur(26px) saturate(180%);
  box-shadow: 0 16px 50px rgba(15, 23, 42, 0.11);
  pointer-events: auto;
  transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled .nav-shell {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 38px rgba(15, 23, 42, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 180px;
}

.brand img {
  width: 180px;
  height: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 10px 14px;
  border-radius: 999px;
  color: rgba(29, 29, 31, 0.76);
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--ink);
  background: rgba(15, 23, 42, 0.07);
}

.nav-links .nav-cta {
  color: #fff;
  background: var(--ink);
  box-shadow: 0 10px 28px rgba(29, 29, 31, 0.22);
}

.nav-links .nav-cta:hover,
.nav-links .nav-cta:focus-visible {
  color: #fff;
  background: #000;
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.08);
  cursor: pointer;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}

.hero-bg,
.hero-bg::after {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-bg {
  background-image: linear-gradient(90deg, rgba(5, 10, 20, 0.86) 0%, rgba(5, 10, 20, 0.5) 48%, rgba(5, 10, 20, 0.22) 100%), url("../img/hero.jpg");
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
}

.hero-bg::after {
  content: "";
  z-index: -1;
  background:
    radial-gradient(circle at 22% 32%, rgba(10, 132, 255, 0.42), transparent 36%),
    linear-gradient(180deg, transparent 0%, rgba(5, 10, 20, 0.74) 100%);
}

.hero-content {
  padding-top: 140px;
  padding-bottom: 86px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 64px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero .eyebrow,
.oec-section .eyebrow {
  color: #8ec5ff;
}

.hero h1,
.section h2 {
  margin: 0;
  font-weight: 780;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.hero h1 {
  max-width: 820px;
  font-size: clamp(1.5rem, 12vw, 6.0rem);
}

.hero-lead {
  max-width: 720px;
  margin: 28px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1.25rem, 2.3vw, 2rem);
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-tags span {
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-actions,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 750;
  letter-spacing: -0.015em;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(180deg, #1a8cff 0%, #0066cc 100%);
  box-shadow: 0 16px 40px rgba(10, 132, 255, 0.28);
}

.button-primary:hover,
.button-primary:focus-visible {
  color: #fff;
  box-shadow: 0 18px 48px rgba(10, 132, 255, 0.38);
}

.button-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, 0.2);
}

.button-secondary.light {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
}

.hero-card {
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(26px) saturate(160%);
  -webkit-backdrop-filter: blur(26px) saturate(160%);
  box-shadow: 0 28px 86px rgba(0, 0, 0, 0.24);
}

.hero-card img {
  width: 260px;
}

.hero-card p {
  margin: 18px 0 22px;
  color: rgba(255, 255, 255, 0.8);
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.mini-stats div {
  min-height: 92px;
  padding: 16px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.14);
}

.mini-stats strong,
.mini-stats span {
  display: block;
}

.mini-stats strong {
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.mini-stats span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
  line-height: 1.2;
}

.section {
  padding: clamp(74px, 9vw, 132px) 0;
}

.section h2 {
  font-size: clamp(2.5rem, 6vw, 5.8rem);
}

.section h3 {
  margin: 0;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.section p {
  color: var(--muted);
  font-size: 1.05rem;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.76fr);
  gap: clamp(34px, 7vw, 90px);
  align-items: center;
}

.section-copy p:not(.eyebrow) {
  max-width: 750px;
}

.image-card {
  position: relative;
  padding: clamp(22px, 5vw, 46px);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 70% 20%, rgba(10, 132, 255, 0.16), transparent 38%),
    rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.image-card::before {
  content: "";
  position: absolute;
  inset: auto -20% -40% 10%;
  height: 170px;
  border-radius: 50%;
  background: rgba(10, 132, 255, 0.13);
  filter: blur(10px);
}

.image-card img {
  position: relative;
  z-index: 1;
  margin-inline: auto;
  filter: drop-shadow(0 28px 36px rgba(15, 23, 42, 0.2));
}

.services-section {
  background: #fff;
}

.section-heading {
  max-width: 900px;
  margin-bottom: 48px;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  margin-inline: auto;
  max-width: 850px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.service-card,
.attention-card,
.office-card,
.stat-card,
.contact-form,
.oec-card {
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-lg);
  background: var(--surface-solid);
  box-shadow: var(--shadow-soft);
}

.service-card {
  min-height: 310px;
  padding: clamp(24px, 5vw, 42px);
  overflow: hidden;
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.icon-badge {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  margin-bottom: 32px;
  border-radius: 22px;
  color: #fff;
  background: linear-gradient(145deg, #111827, #334155);
  box-shadow: 0 14px 34px rgba(15, 23, 42, 0.22);
}

.icon-badge svg {
  width: 32px;
  height: 32px;
  fill: currentColor;
}

.service-card p {
  margin-bottom: 0;
}

.attention-card {
  margin-top: 22px;
  padding: clamp(24px, 5vw, 42px);
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 30px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(244, 247, 252, 0.92)),
    url("../img/ruta1.jpg") center/cover;
}

.attention-card p:last-child {
  margin: 0;
}

.stats-section {
  position: relative;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(8, 13, 24, 0.88), rgba(8, 13, 24, 0.88)),
    url("../img/ruta2.jpg") center/cover fixed;
}

.stats-section .eyebrow {
  color: #8ec5ff;
}

.stats-section p,
.stats-section .section-heading p {
  color: rgba(255, 255, 255, 0.72);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.stat-card {
  padding: clamp(24px, 5vw, 44px);
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
}

.stat-card strong,
.stat-card span {
  display: block;
}

.stat-card strong {
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.stat-card span {
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 700;
}

.country-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 22px;
}

.country-card {
  min-height: 172px;
  padding: 24px 18px;
  display: grid;
  place-items: center;
  gap: 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 14px 42px rgba(15, 23, 42, 0.08);
}

.country-card img {
  width: 72px;
  height: 72px;
}

.country-card span {
  font-weight: 760;
  letter-spacing: -0.02em;
}

.office-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 1fr;
  gap: 18px;
}

.office-card {
  padding: 30px;
  background: rgba(255, 255, 255, 0.82);
}

.office-card ul {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.office-card li + li {
  border-top: 1px solid var(--line);
}

.office-card li {
  padding: 15px 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.4;
}

.office-card li span,
.contact-list span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.oec-section {
  color: #fff;
  background: linear-gradient(135deg, #07101f 0%, #111827 52%, #17345a 100%);
}

.oec-card {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: clamp(28px, 6vw, 64px);
  align-items: center;
  padding: clamp(28px, 6vw, 64px);
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.oec-card p {
  color: rgba(255, 255, 255, 0.74);
}

.oec-logo-wrap {
  padding: 24px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
}

.contact-section {
  background:
    linear-gradient(180deg, rgba(245, 245, 247, 0.97), rgba(245, 245, 247, 0.97)),
    url("../img/contact-bg.jpg") center/cover;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: clamp(28px, 6vw, 76px);
  align-items: start;
}

.contact-copy {
  position: sticky;
  top: 118px;
}

.contact-list {
  margin-top: 32px;
  display: grid;
  gap: 14px;
}

.contact-list > a,
.contact-list > p {
  margin: 0;
  padding: 18px 20px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 22px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.07);
}

.contact-form {
  padding: clamp(24px, 5vw, 44px);
}

.contact-form h3 {
  margin-bottom: 22px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
  color: var(--muted);
  font-weight: 760;
}

.contact-form label span {
  font-size: 0.84rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 18px;
  padding: 15px 16px;
  color: var(--ink);
  background: #f8fafc;
  outline: none;
  transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.contact-form textarea {
  resize: vertical;
  min-height: 136px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(10, 132, 255, 0.72);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(10, 132, 255, 0.13);
}

.form-status {
  min-height: 24px;
  margin: 8px 0 18px;
  font-weight: 700;
}

.form-status.ok {
  color: var(--success);
}

.form-status.error {
  color: var(--danger);
}

.form-button {
  width: 100%;
  border: 0;
}

.map-wrap {
  margin-top: 26px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  background: #fff;
}

.map-wrap iframe {
  display: block;
  width: 100%;
  min-height: 560px;
}

.footer {
  padding: 34px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #070b13;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.footer img {
  width: 190px;
}

.footer p {
  margin: 0;
}

.footer a {
  color: #fff;
  font-weight: 750;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: rgba(29, 29, 31, 0.84);
  box-shadow: 0 18px 46px rgba(15, 23, 42, 0.22);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .menu-toggle {
    display: block;
  }

  .nav-shell {
    align-items: flex-start;
    border-radius: 28px;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: grid;
    gap: 4px;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.52);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.16);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav-links.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-links a {
    padding: 13px 16px;
  }

  .hero-content,
  .split-grid,
  .contact-grid,
  .oec-card {
    grid-template-columns: 1fr;
  }

  .hero-card {
    max-width: 520px;
  }

  .contact-copy {
    position: static;
  }

  .office-grid {
    grid-template-columns: 1fr;
  }

  .oec-logo-wrap {
    max-width: 330px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .site-header {
    top: 10px;
  }

  .nav-shell {
    width: min(100% - 20px, 1120px);
    min-height: 60px;
    padding-left: 14px;
  }

  .brand,
  .brand img {
    min-width: 0;
    width: 146px;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    padding-top: 126px;
    padding-bottom: 56px;
    gap: 32px;
  }

  .hero h1 {
    font-size: clamp(3.5rem, 18vw, 6.2rem);
  }

  .hero-lead {
    font-size: 1.25rem;
  }

  .hero-tags span {
    padding: 8px 11px;
    font-size: 0.88rem;
  }

  .hero-actions,
  .inline-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .mini-stats,
  .service-grid,
  .stats-grid,
  .country-grid,
  .attention-card {
    grid-template-columns: 1fr;
  }

  .mini-stats div {
    min-height: unset;
  }

  .country-card {
    min-height: 132px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .map-wrap iframe {
    min-height: 340px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}