@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/SpaceGrotesk-Variable.woff2") format("woff2");
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "DM Sans";
  src: url("/fonts/DMSans-Variable.woff2") format("woff2");
  font-weight: 400 700;
  font-display: swap;
}

:root {
  --ink-950: #17181c;
  --cloud-50: #faf9f6;
  --cloud-100: #f2f0ea;
  --cloud-200: #e4e0d5;
  --graphite-500: #6f7269;
  --coral-600: #d85a30;
  --coral-500: #e4703f;
  --font-display: "Space Grotesk", -apple-system, "Segoe UI", sans-serif;
  --font-ui: "DM Sans", -apple-system, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--cloud-50);
  color: var(--ink-950);
  font-family: var(--font-ui);
  line-height: 1.6;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}

header.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
}

.lang-toggle {
  background: none;
  border: 1px solid var(--cloud-200);
  border-radius: 8px;
  padding: 0.4rem 0.8rem;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--graphite-500);
  cursor: pointer;
}

.hero {
  text-align: center;
  padding: 2rem 0 3rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.hero p {
  color: var(--graphite-500);
  max-width: 480px;
  margin: 0 auto 2rem;
}

.btn-primary {
  display: inline-block;
  background: var(--coral-600);
  color: var(--cloud-50);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 1.75rem;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: 0 2px 8px rgb(216 90 48 / 0.3);
  transition: all 0.15s ease;
}

.btn-primary:hover {
  background: var(--coral-500);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgb(216 90 48 / 0.4);
}

.platform-note {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--graphite-500);
}

section {
  padding: 2.5rem 0;
  border-top: 1px solid var(--cloud-200);
}

section h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin: 0 0 1rem;
}

.thesis-item {
  margin-bottom: 1.25rem;
}

.thesis-item strong {
  display: block;
  margin-bottom: 0.25rem;
}

ul.features {
  padding-left: 1.25rem;
}

ul.features li {
  margin-bottom: 0.5rem;
}

.fidelity-callout {
  background: var(--cloud-100);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  margin-top: 1rem;
  font-size: 0.95rem;
}

form.subscribe {
  display: flex;
  gap: 0.5rem;
  max-width: 420px;
}

form.subscribe input[type="email"] {
  flex: 1;
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--cloud-200);
  font-family: var(--font-ui);
  font-size: 0.95rem;
}

form.subscribe button {
  background: var(--coral-600);
  color: var(--cloud-50);
  border: none;
  border-radius: 10px;
  padding: 0.65rem 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  cursor: pointer;
}

.subscribe-status {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  min-height: 1.2em;
}

footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  text-align: center;
  color: var(--graphite-500);
  font-size: 0.85rem;
}

footer a {
  color: var(--graphite-500);
}

[data-lang-content] {
  display: none;
}

[data-lang-content].active {
  display: block;
}

span[data-lang-content].active {
  display: inline;
}