:root {
  --bg: #1a1f1a;
  --text: #e8e8e8;
  --accent: #4caf78;
  --secondary: #a0a8a0;
  --divider: #2e3b2e;
  --max-width: 720px;
  --section-gap: 2.5rem;
  --page-pad: 1rem;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  line-height: 1.65;
  font-size: 1rem;
}

/* ── Layout container ── */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--page-pad);
  padding-right: var(--page-pad);
}

/* ── Header ── */
header {
  padding-top: 2rem;
  padding-bottom: 1.5rem;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

h1 {
  font-size: 2rem;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 0.3rem;
}

.subtitle {
  color: var(--secondary);
  font-size: 1rem;
}

/* ── Language toggle button ── */
.lang-toggle {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.2rem 0.6rem;
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  border-radius: 3px;
  flex-shrink: 0;
  line-height: 1.4;
  transition: background 0.15s, color 0.15s;
}

.lang-toggle:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ── Main content ── */
main {
  padding-bottom: 1rem;
}

/* ── Sections ── */
section {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
  border-top: 1px solid var(--divider);
}

/* ── Headings ── */
h2 {
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

h3 {
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
}

/* ── Paragraphs ── */
p {
  margin-bottom: 0.8rem;
  color: var(--text);
}

p:last-child {
  margin-bottom: 0;
}

/* ── Lists ── */
ul {
  padding-left: 1.4rem;
  margin-bottom: 0.75rem;
}

li {
  margin-bottom: 0.25rem;
}

/* ── Links ── */
a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ── Contact list ── */
.contact-list {
  list-style: none;
  padding-left: 0;
}

.contact-list li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.contact-icon {
  color: var(--secondary);
  flex-shrink: 0;
  width: 1.2em;
  text-align: center;
  font-style: normal;
}

.contact-label {
  color: var(--secondary);
  flex-shrink: 0;
  min-width: 4.5rem;
}

/* ── Responsible-person line ── */
.responsible {
  color: var(--secondary);
  font-size: 0.9rem;
  margin-top: 1rem;
  margin-bottom: 0;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--divider);
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  text-align: center;
  color: var(--secondary);
  font-size: 0.875rem;
}

/* ── Responsive ── */
@media (min-width: 600px) {
  :root {
    --page-pad: 2rem;
  }

  h1 {
    font-size: 2.5rem;
  }

  header {
    padding-top: 2.5rem;
    padding-bottom: 2rem;
  }

  .contact-label {
    min-width: 5.5rem;
  }
}