@import url('/tokens.css');

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:where(a, button):focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }

.wrap { width: min(1100px, calc(100% - 40px)); margin-inline: auto; }

.site-nav {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-rule);
}
.brand {
  font: 700 18px/1 var(--font-body);
  letter-spacing: -0.03em;
  text-decoration: none;
}
.brand .dns { color: var(--color-accent); }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  color: var(--color-ink-2);
  font-size: 14px;
  text-decoration: none;
  transition: color var(--dur-short);
}
.nav-links a:hover { color: var(--color-ink); }

.hero {
  min-height: 480px;
  display: grid;
  place-items: center;
  padding: 80px 0 64px;
  text-align: center;
}
.wordmark {
  display: flex;
  justify-content: center;
  margin: 0 0 24px;
  font: 800 var(--text-display)/0.9 var(--font-body);
  letter-spacing: -0.05em;
}
.wordmark .dns { color: var(--color-accent); }
.hero-copy {
  max-width: 52ch;
  margin: 0;
  color: var(--color-ink-2);
  font-size: 17px;
  line-height: 1.6;
}
.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}
.btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0 20px;
  background: var(--color-accent);
  color: var(--color-accent-ink);
  cursor: pointer;
  font: 600 14px/1 var(--font-body);
  text-decoration: none;
  transition: background var(--dur-short), opacity var(--dur-short);
}
.btn:hover { opacity: 0.88; }
.btn:active { opacity: 0.75; }
.btn.secondary {
  border-color: var(--color-rule);
  background: var(--color-surface);
  color: var(--color-ink);
}
.btn.secondary:hover { background: var(--color-surface-strong); opacity: 1; }

.section { padding: 40px 0 72px; }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--color-rule);
  padding-bottom: 16px;
  margin-bottom: 20px;
}
.section-head h2 {
  margin: 0;
  font: 700 var(--text-2xl)/1.1 var(--font-body);
  letter-spacing: -0.03em;
}
.section-head p {
  max-width: 36ch;
  margin: 0;
  color: var(--color-ink-2);
  line-height: 1.5;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-rule);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  overflow: hidden;
}
.panel {
  padding: 24px;
  background: var(--color-surface);
}
.panel .tag {
  display: inline-block;
  color: var(--color-ink-2);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.panel h3 {
  margin: 12px 0 8px;
  font: 600 17px/1.2 var(--font-body);
  letter-spacing: -0.01em;
}
.panel p, .compare-card li, .faq p {
  margin: 0;
  color: var(--color-ink-2);
  font-size: 14px;
  line-height: 1.6;
}

.compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.compare-card {
  padding: 24px;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.compare-card h3 {
  margin: 0 0 16px;
  font: 600 13px/1 var(--font-body);
  color: var(--color-ink-2);
}
.compare-card ul { display: grid; gap: 10px; padding-left: 18px; margin: 0; }
.compare-card.good { border-color: rgba(94,171,109,0.25); }
.compare-card.good h3 { color: var(--color-success); }

.download-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.download-panel h2 { margin: 0 0 6px; font: 700 var(--text-xl)/1 var(--font-body); }
.download-panel p { margin: 0; color: var(--color-ink-2); font-size: 13px; }

.video {
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface);
  aspect-ratio: 16/9;
}
.video iframe { width: 100%; height: 100%; border: 0; }

.faq {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.faq article {
  padding: 20px;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.faq h3 { margin: 0 0 8px; font: 600 16px/1.3 var(--font-body); }

footer {
  padding: 28px 0 40px;
  color: var(--color-ink-2);
  font-size: 12px;
  border-top: 1px solid var(--color-rule);
}

/* --- Modals --- */
.modal-overlay, .instr-overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(0,0,0,0.75);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-short), visibility var(--dur-short);
}
.modal-overlay.active, .instr-overlay.active { opacity: 1; visibility: visible; }

.captcha-modal, .instr-modal {
  width: min(420px, 100%);
  padding: 28px;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-paper-2);
}
.captcha-brand {
  font: 700 16px/1 var(--font-body);
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.captcha-brand span { color: var(--color-accent); }
.captcha-modal h2, .instr-modal h2 {
  margin: 0 0 8px;
  font: 700 22px/1.2 var(--font-body);
}
.captcha-modal p {
  margin: 0 0 20px;
  color: var(--color-ink-2);
  font-size: 14px;
  line-height: 1.5;
}
.captcha-challenge {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-ink);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--dur-short);
}
.captcha-challenge:hover:not(:disabled) { border-color: var(--color-ink-2); }
.captcha-challenge:disabled { cursor: wait; }
.captcha-box {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--color-ink-2);
  border-radius: 4px;
  flex: 0 0 auto;
}
.captcha-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-ink-2);
  border-top-color: transparent;
  border-radius: 50%;
  opacity: 0;
}
.captcha-challenge.checking .captcha-spinner { opacity: 1; animation: spin 600ms linear infinite; }
.captcha-check { width: 16px; color: var(--color-success); opacity: 0; }
.captcha-challenge.verified { border-color: var(--color-success); }
.captcha-challenge.verified .captcha-check { opacity: 1; }
.captcha-challenge.error { border-color: var(--color-danger); }
.captcha-copy { display: grid; gap: 3px; }
.captcha-copy strong { font-size: 14px; font-weight: 600; }
.captcha-copy small { color: var(--color-ink-2); font-size: 12px; }

.instr-close {
  float: right;
  border: 0;
  background: none;
  color: var(--color-ink-2);
  font-size: 24px;
  cursor: pointer;
}
.instr-password {
  margin: 20px 0;
  padding: 14px;
  border: 1px solid var(--color-rule);
  border-radius: var(--radius);
  background: var(--color-surface);
}
.instr-password .label { color: var(--color-ink-2); font-size: 12px; }
.instr-password .pass {
  margin-top: 6px;
  color: var(--color-ink);
  font: 600 20px/1 var(--font-mono);
  letter-spacing: 0.08em;
}
.instr-steps {
  display: grid;
  gap: 8px;
  padding-left: 20px;
  color: var(--color-ink-2);
  font-size: 14px;
  line-height: 1.5;
}
.instr-steps a { color: var(--color-accent); }
.instr-ok {
  width: 100%;
  margin-top: 20px;
  min-height: 42px;
  border: 0;
  border-radius: var(--radius);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 600;
  cursor: pointer;
}
.instr-ok:hover { opacity: 0.88; }

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 760px) {
  .wrap { width: min(100% - 28px, 1100px); }
  .site-nav { height: 56px; }
  .nav-links { gap: 12px; }
  .nav-links a:not(:last-child) { display: none; }
  .hero { min-height: auto; padding: 56px 0 40px; }
  .wordmark { font-size: clamp(3.5rem, 16vw, 6rem); }
  .features, .compare, .faq { grid-template-columns: 1fr; }
  .section { padding: 28px 0 48px; }
  .section-head, .download-panel { align-items: flex-start; flex-direction: column; }
  .download-panel .btn { width: 100%; }
}
@media (max-width: 420px) {
  .actions { flex-direction: column; width: 100%; }
  .actions .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}