:root {
  --bg: #f5f9fc;
  --surface: #ffffff;
  --surface-2: #eef4f9;
  --surface-3: #e3edf7;
  --text: #102033;
  --muted: #58708a;
  --line: rgba(16, 32, 51, 0.1);
  --primary: #0f4c81;
  --primary-strong: #0b3962;
  --accent: #19a7c7;
  --accent-soft: rgba(25, 167, 199, 0.12);
  --success: #198754;
  --danger: #c23c3c;
  --shadow: 0 22px 60px rgba(15, 76, 129, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --container: 1180px;
  --header-height: 88px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(25, 167, 199, 0.10), transparent 22%),
    linear-gradient(180deg, #f9fcff 0%, var(--bg) 36%, #f7fbfe 100%);
  line-height: 1.6;
}

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

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover { color: var(--primary-strong); }

button,
input,
textarea {
  font: inherit;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--primary);
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 1000;
}

.skip-link:focus { top: 12px; }

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.section {
  padding: 96px 0;
}

.section-surface {
  background: linear-gradient(180deg, rgba(255,255,255,0.9), rgba(238,244,249,0.9));
  border-top: 1px solid rgba(15, 76, 129, 0.06);
  border-bottom: 1px solid rgba(15, 76, 129, 0.06);
}

.section-heading {
  max-width: 840px;
  margin-bottom: 42px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--primary-strong);
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1, h2, h3 {
  margin: 0 0 18px;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  //max-width: 12ch;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  //max-width: 16ch;
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0;
  color: var(--muted);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(249, 252, 255, 0.82);
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
}

.brand span {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand strong {
  font-size: 0.98rem;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 0.8rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.main-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 22px;
  padding: 0;
  margin: 0;
}

.main-nav a {
  font-weight: 600;
  color: var(--text);
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 99px;
  background: var(--text);
  margin: 5px auto;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 14px 32px rgba(15, 76, 129, 0.22);
}

.button-primary:hover { color: #fff; }

.button-secondary {
  background: var(--surface);
  border-color: var(--line);
  color: var(--text);
}

.button-block {
  width: 100%;
}

.hero {
  padding-top: 54px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 44px;
  align-items: center;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero-lead {
  font-size: 1.1rem;
  max-width: 62ch;
}

.hero-slogan {
  color: var(--text);
  font-weight: 700;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
}

.hero-metrics li,
.card,
.feature-card,
.contact-card,
.contact-form,
.cta-band {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(16, 32, 51, 0.08);
  box-shadow: var(--shadow);
}

.hero-metrics li {
  padding: 18px;
  border-radius: var(--radius-md);
}

.hero-metrics strong {
  display: block;
  font-size: 1.5rem;
  color: var(--primary-strong);
  margin-bottom: 6px;
}

.hero-visual {
  position: relative;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: auto 10% -10% 10%;
  height: 20px;
  background: rgba(15, 76, 129, 0.14);
  filter: blur(38px);
  z-index: -1;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.card,
.feature-card,
.contact-card,
.contact-form {
  border-radius: var(--radius-lg);
}

.card {
  padding: 28px;
}

.card-icon {
  width: 54px;
  height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.12), rgba(25, 167, 199, 0.12));
}

.feature-layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 420px) 1fr;
  gap: 24px;
  align-items: center;
}

.feature-column {
  display: grid;
  gap: 20px;
}

.feature-card {
  padding: 28px;
}

.feature-card-accent {
  background: linear-gradient(135deg, rgba(15, 76, 129, 0.94), rgba(25, 167, 199, 0.9));
}

.feature-card-accent h3,
.feature-card-accent p {
  color: #fff;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 20px;
  align-items: start;
  padding: 24px 0;
  border-bottom: 1px solid rgba(16, 32, 51, 0.08);
}

.timeline-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.timeline-number {
  width: 76px;
  height: 76px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(15,76,129,0.12), rgba(25,167,199,0.18));
  color: var(--primary-strong);
  font-weight: 800;
  font-size: 1.35rem;
}

.competencies-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 30px;
  align-items: start;
}

.chip-groups {
  display: grid;
  gap: 20px;
}

.chip-group {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.84);
  border: 1px solid rgba(16, 32, 51, 0.08);
  box-shadow: var(--shadow);
}

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 16px 0 0;
}

.chips li {
  padding: 10px 14px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f4fbff, #eaf2f9);
  border: 1px solid rgba(15, 76, 129, 0.08);
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

.section-cta-band {
  padding: 54px 0;
}

.cta-band {
  border-radius: calc(var(--radius-lg) + 4px);
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
}

.cta-band h2 { max-width: 14ch; }

.cta-band-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 26px;
  align-items: start;
}

.contact-copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.contact-points li {
  position: relative;
  padding-left: 28px;
  color: var(--text);
  font-weight: 600;
}

.contact-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.contact-form {
  padding: 28px;
}

.form-row {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

label {
  font-weight: 700;
  color: var(--text);
}

input,
textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(16, 32, 51, 0.12);
  background: #fbfdff;
  padding: 14px 16px;
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(15,76,129,0.34);
  box-shadow: 0 0 0 4px rgba(25,167,199,0.12);
}

.checkbox-row {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
  margin-bottom: 8px;
}

.checkbox-row input {
  margin-top: 4px;
}

.form-error {
  min-height: 18px;
  color: var(--danger);
  font-size: 0.88rem;
}

.form-note,
.form-success {
  margin-top: 14px;
  font-size: 0.92rem;
}

.form-success {
  color: var(--success);
  font-weight: 700;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.contact-card {
  padding: 24px;
}

.site-footer {
  padding: 28px 0 44px;
  border-top: 1px solid rgba(16, 32, 51, 0.08);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 26px;
  align-items: center;
}

.footer-copy {
  max-width: 58ch;
  margin-top: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  justify-content: flex-end;
}

.brand-footer strong {
  font-size: 0.95rem;
}

.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 18px 30px rgba(15, 76, 129, 0.22);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  z-index: 70;
}

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

.back-to-top svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-delay {
  transition-delay: 0.12s;
}

@media (max-width: 1120px) {
  .hero-grid,
  .competencies-layout,
  .contact-grid,
  .feature-layout,
  .contact-cards,
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-layout {
    grid-template-columns: 1fr 1fr;
  }

  .feature-visual {
    grid-column: 1 / -1;
  }

  .contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  :root { --header-height: 76px; }

  .section {
    padding: 78px 0;
  }

  .menu-toggle {
    display: inline-block;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
    padding: 18px;
    border-radius: 22px;
    background: rgba(255,255,255,0.97);
    border: 1px solid rgba(16, 32, 51, 0.1);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }

  .main-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .nav-cta {
    width: 100%;
  }

  .hero-grid,
  .competencies-layout,
  .contact-grid,
  .cards-grid,
  .feature-layout,
  .contact-cards {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 34px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

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

  .timeline-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 24px), var(--container));
  }

  .button,
  .hero-actions .button {
    width: 100%;
  }

  .brand strong {
    font-size: 0.92rem;
  }

  .brand small {
    font-size: 0.76rem;
  }

  .card,
  .feature-card,
  .contact-card,
  .contact-form,
  .cta-band {
    border-radius: 22px;
  }
}