:root {
  color-scheme: dark;
  --bg: #0c1210;
  --text: #e8f0e4;
  --dim: #9aaca0;
  --stroke: #2a3830;
  --surface: #151c18;
  --accent: #8fbf7a;
  --error: #e8a0a0;
  --ok: #7ddea0;
  --warm: #e0b060;
  --cool: #7ec8e3;
  font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

a:hover {
  color: var(--text);
}

.wrap {
  width: min(1024px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3.5rem;
}

.site-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 1.5rem;
  row-gap: 0.85rem;
  margin-bottom: 2.25rem;
}

.site-header img {
  width: 4rem;
  height: 4rem;
  border-radius: 0.9rem;
  flex: 0 0 auto;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.site-brand:hover {
  color: inherit;
}

.site-brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.site-brand-name {
  font-weight: 650;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.site-brand-claim {
  color: var(--dim);
  font-size: 0.84rem;
  font-weight: 400;
  line-height: 1.35;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem 1rem;
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .site-header {
    grid-template-columns: 1fr;
  }

  .site-nav {
    justify-content: flex-start;
  }
}

.site-nav a {
  color: var(--dim);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a.is-current {
  color: var(--text);
}

.lang-switch {
  display: inline-flex;
  gap: 0.35rem;
  margin-left: 0.25rem;
}

.lang-switch a {
  margin: 0;
  padding: 0;
  color: var(--dim);
  font-size: 0.8rem;
  text-decoration: none;
}

.lang-switch a:hover,
.lang-switch a[aria-current='true'] {
  color: var(--text);
}

h1 {
  margin: 0 0 1.1rem;
  font-size: 1.65rem;
  font-weight: 650;
  letter-spacing: -0.03em;
}

.lead {
  margin: 0 0 1.5rem;
  color: var(--dim);
}

.legal h2 {
  margin: 1.6rem 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 650;
}

.legal p,
.legal li {
  color: var(--text);
}

.legal ul {
  padding-left: 1.15rem;
}

.updated {
  margin-top: 2rem;
  color: var(--dim);
  font-size: 0.85rem;
}

.field {
  margin: 0 0 1rem;
}

.field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.88rem;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--stroke);
  border-radius: 0.65rem;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  padding: 0.65rem 0.75rem;
}

.field textarea {
  min-height: 10rem;
  resize: vertical;
}

.field-hint {
  margin: 0.35rem 0 0;
  color: var(--dim);
  font-size: 0.82rem;
}

.btn {
  appearance: none;
  border: none;
  border-radius: 0.7rem;
  background: var(--accent);
  color: #102010;
  font: inherit;
  font-weight: 650;
  padding: 0.65rem 1.1rem;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.form-error {
  color: var(--error);
  font-size: 0.9rem;
}

.thanks h2 {
  margin: 0 0 0.4rem;
}

.contact-intro {
  margin: 0 0 1.35rem;
}

.about-prose p {
  margin: 0 0 0.9rem;
  line-height: 1.55;
}

.about-prose p:last-child {
  margin-bottom: 0;
}

.about-feature-group {
  margin: 0 0 1.35rem;
}

.about-feature-group h2 {
  margin: 0 0 0.45rem;
  font-size: 1.02rem;
  font-weight: 650;
}

.about-feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.about-feature-list li {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  margin: 0 0 0.4rem;
  font-size: 0.92rem;
  line-height: 1.45;
}

.about-mark {
  flex: 0 0 1.1rem;
  text-align: center;
  font-weight: 700;
}

.about-mark-ok {
  color: var(--ok);
}

.about-mark-no {
  color: var(--error);
}

.about-mark-plus {
  color: var(--cool);
  font-size: 1.2em;
  font-weight: 800;
}

.about-mark-diff {
  color: var(--warm);
}

.about-faq-item {
  border-bottom: 1px solid var(--stroke);
}

.about-faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  padding: 0.7rem 0;
  cursor: pointer;
  list-style: none;
}

.about-faq-item summary::-webkit-details-marker {
  display: none;
}

.about-faq-q {
  flex: 1 1 auto;
  font-weight: 600;
  line-height: 1.4;
}

.about-faq-chevron {
  color: var(--dim);
  transition: transform 160ms ease;
}

.about-faq-item[open] .about-faq-chevron {
  transform: rotate(90deg);
}

.about-faq-body {
  padding: 0 0 0.9rem;
}

.about-faq-body p,
.about-faq-body ul {
  margin: 0 0 0.7rem;
}

.about-faq-body ul {
  padding-left: 1.15rem;
}

[hidden] {
  display: none !important;
}