:root {
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --text: #1f2937;
  --text-soft: #4b5563;
  --border: #e5e7eb;
  --accent: #111827;
  --accent-soft: #374151;
  --max-width: 1100px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

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

a:hover,
a:focus {
  text-decoration: underline;
}

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

.narrow {
  max-width: 760px;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--bg-alt);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
}

.logo {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--accent);
}

.logo:hover,
.logo:focus {
  text-decoration: none;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  color: var(--text-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a:focus {
  color: var(--accent);
  text-decoration: none;
}

.lang a {
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 0.35rem 0.6rem;
  border-radius: 8px;
  background: #ffffff;
}

.lang a:hover,
.lang a:focus {
  background: #eef2f7;
}

.hero {
  padding-top: 5.5rem;
  padding-bottom: 5rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-soft);
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin-top: 0;
  color: var(--accent);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  max-width: 12ch;
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.lead {
  font-size: 1.05rem;
  color: var(--text-soft);
  max-width: 720px;
  margin-bottom: 1.75rem;
}

.section-heading {
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.button {
  display: inline-block;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  border: 1px solid var(--accent);
  transition: 0.2s ease;
}

.button:hover,
.button:focus {
  background: var(--accent-soft);
  border-color: var(--accent-soft);
  text-decoration: none;
}

.button-secondary {
  background: transparent;
  color: var(--accent);
}

.button-secondary:hover,
.button-secondary:focus {
  background: #eef2f7;
  color: var(--accent);
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: var(--shadow);
}

.card p,
.contact-box p,
.section p {
  margin-top: 0;
  color: var(--text-soft);
}

.contact-box {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.contact-email a {
  font-size: 1.1rem;
  font-weight: 700;
  word-break: break-word;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  background: #ffffff;
}

.footer-inner p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

@media (min-width: 720px) {
  .header-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .section {
    padding: 5.5rem 0;
  }
}