/* UtterLink — marketing site
   Design tokens: ink/parchment ground, amber "on-air" signal accent,
   teal secondary, condensed display type for headlines, mono for the
   spoken/written URL contrast, Inter for reading body copy. */

:root {
  --ink: #14181f;
  --ink-soft: #1b212b;
  --ink-line: rgba(241, 234, 222, 0.12);
  --parchment: #f1eade;
  --parchment-dim: rgba(241, 234, 222, 0.72);
  --amber: #ff9f1c;
  --amber-dim: rgba(255, 159, 28, 0.16);
  --teal: #3e8e8a;
  --static-gray: #8b92a0;
  --max-w: 1080px;
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--parchment);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Big Shoulders Display", "Arial Narrow", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--parchment);
}

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

.mono {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
}

.eyebrow {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* --- header --- */

header.site {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(20, 24, 31, 0.86);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ink-line);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.wordmark {
  font-family: "Big Shoulders Display", sans-serif;
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--parchment);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.wordmark .dot { color: var(--amber); }

nav.site-nav { display: flex; gap: 28px; }
nav.site-nav a {
  color: var(--parchment-dim);
  text-decoration: none;
  font-size: 0.95rem;
}
nav.site-nav a:hover { color: var(--amber); }

/* --- hero --- */

.hero { padding: 88px 0 64px; }

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 0.98;
  max-width: 14ch;
  margin-top: 14px;
}

.hero .sub {
  max-width: 46ch;
  margin: 22px 0 0;
  color: var(--parchment-dim);
  font-size: 1.15rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn.primary { background: var(--amber); color: var(--ink); }
.btn.primary:hover { background: #ffb347; }

.btn.ghost {
  border-color: var(--ink-line);
  color: var(--parchment);
}
.btn.ghost:hover { border-color: var(--amber); color: var(--amber); }

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--parchment-dim);
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  padding: 8px 14px;
  border-radius: 999px;
}

.pill::before {
  content: "✓";
  color: var(--teal);
  font-weight: 600;
}

/* --- url compare / signature element --- */

.url-compare {
  margin-top: 64px;
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  background: var(--ink-soft);
  padding: 36px;
  display: grid;
  gap: 26px;
}

.url-block .label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--static-gray);
}

.long-url {
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.02rem;
  color: var(--parchment-dim);
  word-break: break-all;
  margin: 10px 0 0;
  text-decoration: line-through;
  text-decoration-color: rgba(139, 146, 160, 0.5);
  opacity: 0.85;
}

.short-url {
  font-family: "IBM Plex Mono", monospace;
  font-size: 1.5rem;
  margin: 10px 0 0;
  color: var(--parchment);
}

.short-url .highlight {
  color: var(--ink);
  background: var(--amber);
  padding: 2px 10px;
  border-radius: 6px;
}

.waveform {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 44px;
}

.waveform span {
  display: block;
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--amber), var(--teal));
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scaleY(0.4); }
  50% { transform: scaleY(1); }
}

.waveform span:nth-child(1) { height: 14px; animation-delay: 0s; }
.waveform span:nth-child(2) { height: 30px; animation-delay: 0.1s; }
.waveform span:nth-child(3) { height: 44px; animation-delay: 0.2s; }
.waveform span:nth-child(4) { height: 22px; animation-delay: 0.3s; }
.waveform span:nth-child(5) { height: 38px; animation-delay: 0.4s; }
.waveform span:nth-child(6) { height: 16px; animation-delay: 0.5s; }
.waveform span:nth-child(7) { height: 28px; animation-delay: 0.6s; }
.waveform span:nth-child(8) { height: 10px; animation-delay: 0.7s; }

@media (prefers-reduced-motion: reduce) {
  .waveform span { animation: none; transform: scaleY(0.8); }
}

/* --- sections --- */

section { padding: 72px 0; border-top: 1px solid var(--ink-line); }

section h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  max-width: 18ch;
  margin-top: 12px;
}

.section-head { max-width: 60ch; }

.steps {
  margin-top: 44px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink-line);
}

.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--ink-line);
  align-items: baseline;
}

.step .num {
  font-family: "IBM Plex Mono", monospace;
  color: var(--amber);
  font-size: 1.1rem;
}

.step h3 { font-size: 1.15rem; text-transform: none; margin-bottom: 6px; }
.step p { margin: 0; color: var(--parchment-dim); }

.card-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.card {
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 26px;
  background: var(--ink-soft);
}

.card .tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--teal);
}

.card h3 { font-size: 1.05rem; text-transform: none; margin: 10px 0 8px; }
.card p { margin: 0; color: var(--parchment-dim); font-size: 0.96rem; }

.trust {
  background: var(--ink-soft);
  border-radius: var(--radius);
  border: 1px solid var(--amber-dim);
  padding: 40px;
  margin-top: 20px;
}

.trust h2 { max-width: none; }
.trust p { color: var(--parchment-dim); max-width: 62ch; margin-top: 14px; }

/* --- footer / cta --- */

.closing { text-align: left; }
.closing .badge {
  display: inline-block;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--amber-dim);
  background: var(--amber-dim);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}

footer.site {
  border-top: 1px solid var(--ink-line);
  padding: 32px 0 44px;
}

footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  color: var(--static-gray);
  font-size: 0.88rem;
}

footer.site a { color: var(--static-gray); text-decoration: none; }
footer.site a:hover { color: var(--amber); }

/* --- privacy page --- */

.legal {
  padding: 64px 0 96px;
  max-width: 720px;
}

.legal h1 { font-size: clamp(2.1rem, 5vw, 2.8rem); }
.legal .updated { color: var(--static-gray); margin-top: 10px; font-family: "IBM Plex Mono", monospace; font-size: 0.85rem; }

.legal h2 {
  font-size: 1.2rem;
  text-transform: none;
  margin-top: 46px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--ink-line);
}

.legal p, .legal li { color: var(--parchment-dim); }
.legal ul { padding-left: 20px; }

.legal .note {
  margin-top: 6px;
  font-size: 0.88rem;
  color: var(--teal);
  font-family: "IBM Plex Mono", monospace;
}

@media (max-width: 640px) {
  .hero { padding: 56px 0 40px; }
  .url-compare { padding: 24px; }
  nav.site-nav { display: none; }
}