/*! HTML5 Boilerplate v9.0.1 | MIT License | https://html5boilerplate.com/ */

:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --ink: #121a2b;
  --ink-soft: #415171;
  --brand: #005f99;
  --brand-strong: #03466e;
  --accent: #0f766e;
  --ring: rgba(0, 95, 153, 0.3);
  --line: #cfd9e8;
  --radius: 16px;
  --shadow: 0 14px 40px rgba(11, 35, 67, 0.09);
  --maxw: 1080px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", "Noto Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, #dfeeff 0, #f4f7fb 35%),
    linear-gradient(180deg, #f4f7fb 0%, #eef3fa 100%);
  line-height: 1.5;
}

a {
  color: var(--brand);
}

.container {
  width: min(100% - 2rem, var(--maxw));
  margin-inline: auto;
}

.section {
  padding: 4.5rem 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: 0.5rem 0.75rem;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
  border-radius: 0.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.6rem;
  background: var(--brand);
  color: #fff;
  font-size: 0.85rem;
}

.main-nav {
  display: inline-flex;
  gap: 1.1rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--brand-strong);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem;
  background: var(--surface);
}

.lang-btn {
  border: 0;
  border-radius: 999px;
  padding: 0.25rem 0.55rem;
  font-weight: 700;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
}

.lang-btn.is-active {
  background: var(--brand);
  color: #fff;
}

.lang-btn {
  outline: none;
}

.hero {
  padding-top: 5.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: start;
}

.eyebrow {
  margin: 0;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0.8rem 0 1rem;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  max-width: 18ch;
}

.lead {
  color: var(--ink-soft);
  max-width: 58ch;
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  display: inline-block;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0.7rem 1.2rem;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--brand-strong);
}

.btn-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: var(--surface);
}

.hero-card,
.card,
.contact-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.2rem 1.2rem 1rem;
}

.hero-card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

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

.case-section {
  background: linear-gradient(180deg, rgba(236, 246, 255, 0.5), rgba(255, 255, 255, 0.75));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.card {
  padding: 1.3rem;
}

.card p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.process-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.6), rgba(214, 235, 255, 0.5));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.process-list {
  margin: 1rem 0 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.65rem;
  color: var(--ink-soft);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1.4rem;
}

.contact-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.contact-form {
  padding: 1rem;
  display: grid;
  gap: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #bccce0;
  border-radius: 0.7rem;
  padding: 0.68rem 0.75rem;
  font: inherit;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form input:focus,
.contact-form textarea:focus,
.lang-btn:focus,
.btn:focus {
  outline: 3px solid var(--ring);
  outline-offset: 1px;
}

.form-status {
  min-height: 1.2rem;
  margin: 0.1rem 0 0;
  color: var(--brand-strong);
  font-weight: 600;
}

.form-status.is-error {
  color: #9b1c1c;
}

.form-status.is-success {
  color: #0b6b3a;
}

.site-footer {
  padding: 1.2rem 0 1.8rem;
  border-top: 1px solid var(--line);
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 640px) {
  .main-nav {
    display: none;
  }

  .section {
    padding: 3.2rem 0;
  }

  .hero {
    padding-top: 4.2rem;
  }
}