/* OpenWispr landing — single-file CSS, no build step. */

:root {
  --bg: #0a0a0a;
  --bg-elev: #111;
  --bg-card: #161616;
  --fg: #f4f4f5;
  --fg-muted: #9ca3af;
  --fg-dim: #6b7280;
  --accent: #ef4444;       /* red record dot — matches the app */
  --accent-soft: #f59e0b;  /* amber accents */
  --border: #262626;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter",
          "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
               Monaco, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --bg-elev: #fafafa;
    --bg-card: #f4f4f5;
    --fg: #18181b;
    --fg-muted: #52525b;
    --fg-dim: #71717a;
    --border: #e4e4e7;
  }
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

code {
  background: var(--bg-card);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--border);
}

pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 12px 0;
}

pre code {
  background: transparent;
  border: none;
  padding: 0;
}

/* -------- nav -------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: light) {
  .nav { background: rgba(255, 255, 255, 0.85); }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}

.brand-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(239, 68, 68, 0.5);
}

.links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14.5px;
  color: var(--fg-muted);
}

.links a:hover { color: var(--fg); text-decoration: none; }

/* -------- shared -------- */

main { padding: 0; }

section {
  padding: 100px 32px;
  max-width: 1080px;
  margin: 0 auto;
}

h2 {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 32px;
  text-align: center;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

p { color: var(--fg-muted); font-size: 15.5px; }

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

/* -------- hero -------- */

.hero {
  padding: 120px 32px 100px;
  text-align: center;
  max-width: 880px;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  margin-bottom: 28px;
}

.hero .sub {
  font-size: 19px;
  color: var(--fg-muted);
  margin-bottom: 40px;
  line-height: 1.6;
}

.cta-row {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 20px;
}

.cta {
  display: inline-flex;
  align-items: center;
  padding: 14px 24px;
  font-size: 15.5px;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: transform 0.06s ease, background 0.15s ease;
}

.cta:hover { text-decoration: none; transform: translateY(-1px); }

.cta-primary {
  background: var(--fg);
  color: var(--bg);
}

.cta-primary:hover { background: var(--fg-muted); }

.cta-secondary {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

.cta-secondary:hover { background: var(--bg-card); }

.hero-note {
  font-size: 13px;
  color: var(--fg-dim);
  margin-top: 8px;
}

/* -------- how -------- */

.how-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.how-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: left;
}

.how-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 16px;
}

.kbd {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 600;
  color: var(--fg);
}

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

.privacy {
  background: linear-gradient(180deg, transparent, var(--bg-elev) 40%, transparent);
  padding-top: 120px;
  padding-bottom: 120px;
  max-width: none;
}

.privacy > * { max-width: 1080px; margin-left: auto; margin-right: auto; }

.privacy-lede {
  text-align: center;
  font-size: 19px;
  color: var(--fg);
  max-width: 640px;
  margin: 0 auto 56px;
  line-height: 1.55;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 56px;
}

.pcard {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.pcard-icon {
  font-size: 22px;
  color: var(--accent);
  margin-bottom: 12px;
}

.proof {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.proof-label {
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 8px;
}

.proof-note {
  color: var(--fg-dim);
  font-size: 13.5px;
}

/* -------- features -------- */

.feat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.feat h3 { margin-bottom: 12px; }
.feat a { color: var(--accent); }

/* -------- install -------- */

.install {
  text-align: center;
  max-width: 720px;
}

.install-steps {
  text-align: left;
  list-style: none;
  counter-reset: step;
  margin: 24px 0;
}

.install-steps li {
  counter-increment: step;
  padding: 16px 0 16px 56px;
  position: relative;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
}

.install-steps li:last-child { border-bottom: none; }

.install-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: var(--fg-muted);
}

.install-or {
  text-align: center;
  color: var(--fg-dim);
  font-size: 14px;
  margin-top: 32px;
}

.install-or a { color: var(--accent); }

/* -------- faq -------- */

.faq { max-width: 760px; }

.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 22px;
  background: var(--bg-card);
  margin-bottom: 10px;
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 32px;
  color: var(--fg);
}

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

.faq summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-size: 22px;
  color: var(--fg-muted);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after { content: "−"; }

.faq details p {
  margin-top: 12px;
  color: var(--fg-muted);
}

.faq details a { color: var(--accent); }

/* -------- final cta -------- */

.final-cta {
  text-align: center;
  background: linear-gradient(180deg, var(--bg-elev), transparent);
  padding: 100px 32px;
  max-width: none;
}

.final-cta h2 { font-size: 44px; margin-bottom: 16px; }
.final-cta p { font-size: 18px; margin-bottom: 32px; }

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

footer {
  border-top: 1px solid var(--border);
  padding: 56px 32px 32px;
  max-width: 1080px;
  margin: 0 auto;
}

.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

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

footer h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--fg-dim);
  margin-bottom: 12px;
}

footer a {
  display: block;
  color: var(--fg-muted);
  font-size: 14.5px;
  padding: 4px 0;
}

footer a:hover { color: var(--fg); text-decoration: none; }
footer .copy a { display: inline; padding: 0; font-size: inherit; color: inherit; text-decoration: underline; }

.tagline { color: var(--fg-dim); font-size: 13.5px; margin-top: 8px; }

.copy {
  text-align: center;
  color: var(--fg-dim);
  font-size: 13px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

/* -------- mobile niceties -------- */

@media (max-width: 640px) {
  section { padding: 64px 20px; }
  .nav { padding: 14px 20px; }
  .links { gap: 18px; font-size: 13.5px; }
  .links a:not(:last-child) { display: none; }   /* keep GitHub link only */
  .hero { padding: 80px 20px 64px; }
  h2 { font-size: 30px; }
  .final-cta h2 { font-size: 32px; }
}