/* BibClick site — editorial "paper" theme */
:root {
  --paper: #faf6ee;
  --paper-2: #f2ebdc;
  --ink: #1b1a17;
  --ink-soft: #4b463d;
  --muted: #8b8273;
  --line: #e7dfce;
  --blue: #1f5fbf;
  --blue-deep: #143a7e;
  --orange: #e07b2e;
  --white: #fffdf8;
  --shadow-sm: 0 1px 2px rgba(27, 26, 23, 0.05);
  --shadow: 0 2px 6px rgba(27, 26, 23, 0.05), 0 16px 40px rgba(27, 26, 23, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(27, 26, 23, 0.045) 1px, transparent 0);
  background-size: 22px 22px;
  color: var(--ink);
  font-family: 'Hanken Grotesk', system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
}

a {
  color: var(--blue-deep);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- nav ---------- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 21px;
  color: var(--ink);
}
.brand img {
  width: 34px;
  height: 34px;
}
.brand b {
  color: var(--orange);
  font-weight: 600;
}
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 15px;
  font-weight: 500;
}
.nav-links a {
  color: var(--ink-soft);
}
.nav-links .ghost {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 16px;
  background: var(--white);
}
.nav-links .ghost:hover {
  text-decoration: none;
  border-color: var(--blue);
  color: var(--blue-deep);
}

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0 72px;
}
.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(40px, 6vw, 62px);
}
.hero h1 em {
  font-style: italic;
  color: var(--blue);
}
.hero p.lead {
  font-size: 19px;
  color: var(--ink-soft);
  max-width: 30ch;
  margin: 22px 0 30px;
}
.cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 22px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}
.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 8px 22px rgba(31, 95, 191, 0.28);
}
.btn-primary:hover {
  background: var(--blue-deep);
  color: #fff;
}
.btn-ghost {
  background: var(--white);
  color: var(--ink);
  border-color: var(--line);
}
.hint {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--muted);
}

/* ---------- citation card demo ---------- */
.demo {
  position: relative;
}
.demo::before {
  content: '';
  position: absolute;
  inset: 18px -14px -16px 22px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transform: rotate(2.5deg);
}
.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
}
.card-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.card-toggle {
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
  color: var(--blue);
  font-size: 13px;
}
.card-brand {
  font-weight: 700;
  color: var(--blue-deep);
}
.card-pill {
  margin-left: auto;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 5px 10px;
}
.card pre {
  margin: 0;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  line-height: 1.6;
  color: #2a2722;
  background: #f7f3ea;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  overflow-x: auto;
}
.card pre .k {
  color: var(--blue);
}
.card pre .o {
  color: var(--orange);
}
.copy {
  position: absolute;
  top: 56px;
  right: 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--blue-deep);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 11px;
}

/* ---------- platform strip ---------- */
.strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 30px 0;
}
.strip p {
  text-align: center;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.chip {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink-soft);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
}

/* ---------- sections ---------- */
section {
  padding: 78px 0;
}
.section-head {
  max-width: 36ch;
  margin-bottom: 44px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
}
.section-head p {
  color: var(--ink-soft);
  margin-top: 12px;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.feature {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.feature .ic {
  font-size: 22px;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--paper-2);
  margin-bottom: 16px;
}
.feature h3 {
  font-size: 21px;
  margin-bottom: 8px;
}
.feature p {
  margin: 0;
  font-size: 15.5px;
  color: var(--ink-soft);
}

/* steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
}
.step::before {
  counter-increment: step;
  content: '0' counter(step);
  font-family: 'Fraunces', serif;
  font-size: 15px;
  font-weight: 600;
  color: var(--orange);
}
.step h3 {
  font-size: 22px;
  margin: 6px 0 8px;
}
.step p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15.5px;
}

/* formats list */
.formats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.fmt {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 16px;
}
.fmt b {
  color: var(--blue-deep);
}

/* privacy callout */
.callout {
  background: var(--ink);
  color: var(--paper);
  border-radius: 22px;
  padding: 56px 48px;
  text-align: center;
}
.callout h2 {
  color: #fff;
  font-size: clamp(28px, 4vw, 40px);
}
.callout p {
  color: #d8d2c4;
  max-width: 50ch;
  margin: 16px auto 26px;
}
.callout .btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}
.callout .btn-ghost:hover {
  border-color: var(--orange);
}

/* footer */
footer {
  border-top: 1px solid var(--line);
  padding: 38px 0 56px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}
footer .foot-links {
  display: flex;
  gap: 22px;
}
footer a {
  color: var(--ink-soft);
}

/* ---------- prose (privacy page) ---------- */
.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 0 80px;
}
.prose .back {
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}
.prose h1 {
  font-size: clamp(34px, 5vw, 48px);
  margin: 22px 0 6px;
}
.prose .meta {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 14px;
}
.prose h2 {
  font-size: 24px;
  margin: 40px 0 10px;
}
.prose p,
.prose li {
  color: var(--ink-soft);
}
.prose ul {
  padding-left: 22px;
}
.prose li {
  margin: 8px 0;
}
.prose .lede {
  font-size: 19px;
  color: var(--ink);
  border-left: 3px solid var(--blue);
  padding-left: 18px;
}
.prose code {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.88em;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1px 6px;
}

/* ---------- entrance animation ---------- */
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.rise {
  opacity: 0;
  animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}
.d1 {
  animation-delay: 0.05s;
}
.d2 {
  animation-delay: 0.16s;
}
.d3 {
  animation-delay: 0.27s;
}
.d4 {
  animation-delay: 0.38s;
}

@media (prefers-reduced-motion: reduce) {
  .rise {
    animation: none;
    opacity: 1;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 36px 0 48px;
  }
  .features,
  .steps {
    grid-template-columns: 1fr;
  }
  .nav-links {
    gap: 16px;
  }
  .nav-links .hide-sm {
    display: none;
  }
  .callout {
    padding: 44px 24px;
  }
}

/* ---------- get / browsers ---------- */
.browsers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.browser {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 20px;
  box-shadow: var(--shadow-sm);
}
.browser--live {
  border-color: var(--blue);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.browser--live:hover {
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 4px 10px rgba(27, 26, 23, 0.08), 0 20px 48px rgba(27, 26, 23, 0.12);
}
.browser__logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
}
.browser__name {
  font-family: 'Fraunces', serif;
  font-size: 23px;
  font-weight: 600;
}
.browser__status {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 13px;
}
.browser__status--live {
  color: var(--white);
  background: var(--blue);
  border-color: var(--blue);
}
.support-line {
  text-align: center;
  margin-top: 34px;
  color: var(--ink-soft);
}
.support-line p {
  margin: 0 0 14px;
}
.bmc-btn {
  display: inline-block;
  transition: transform 0.15s ease;
}
.bmc-btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}
.bmc-btn img {
  height: 50px;
  width: auto;
  display: block;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}
@media (max-width: 860px) {
  .browsers {
    grid-template-columns: 1fr;
  }
}

.chip--more {
  color: var(--blue-deep);
  border-color: var(--blue);
  background: rgba(31, 95, 191, 0.07);
  font-weight: 600;
}