/* ============================================================
   computestockmarket.com — ledger/exchange design system
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,500&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  /* color */
  --ink:        #0A0D12;
  --panel:      #0F141B;
  --panel-2:    #131A23;
  --paper:      #E8E1CC;
  --text:       #D9DEE6;
  --text-dim:   #8B96A3;
  --text-faint: #5C6773;
  --line:       #212934;
  --line-soft:  #1A212B;
  --bid:        #35B27C;
  --ask:        #B5462E;
  --quote:      #C99A3D;

  /* type */
  --serif: 'Fraunces', ui-serif, Georgia, serif;
  --mono:  'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  /* scale */
  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0:  clamp(1rem, 0.95rem + 0.2vw, 1.08rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
  --step-2:  clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);
  --step-3:  clamp(2rem, 1.6rem + 1.6vw, 2.9rem);
  --step-4:  clamp(2.6rem, 1.9rem + 2.8vw, 4.2rem);

  --content-w: 68rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 3px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--mono);
  font-size: var(--step-0);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.08; margin: 0; color: #EFEFE9; }
h1 { font-size: var(--step-4); letter-spacing: -0.01em; }
h2 { font-size: var(--step-3); letter-spacing: -0.005em; }
h3 { font-size: var(--step-1); font-weight: 600; }

p { margin: 0; color: var(--text-dim); max-width: 62ch; }
a { color: inherit; }

.wrap {
  max-width: var(--content-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section { padding-block: clamp(3.5rem, 8vw, 6.5rem); border-top: 1px solid var(--line-soft); }
section:first-of-type { border-top: none; }

.eyebrow-num {
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--quote);
  letter-spacing: 0.02em;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.9rem var(--gutter);
  background: rgba(10,13,18,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: var(--step--1);
  letter-spacing: 0.01em;
  color: var(--text);
  text-decoration: none;
  display: flex; align-items: baseline; gap: 0.5em;
}
.brand span { color: var(--text-faint); }
.brand::before {
  content: "";
  display: inline-block;
  width: 0.55em; height: 0.55em;
  background: var(--bid);
  border-radius: 1px;
  transform: translateY(-1px);
}
nav.primary { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.1rem); }
nav.primary a {
  text-decoration: none;
  font-size: var(--step--1);
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
  padding-block: 0.2rem;
  transition: color 0.15s ease, border-color 0.15s ease;
}
nav.primary a:hover, nav.primary a:focus-visible { color: var(--text); border-color: var(--quote); }
.nav-cta {
  color: var(--ink) !important;
  background: var(--quote);
  padding: 0.45rem 0.9rem !important;
  border-radius: var(--radius);
  font-weight: 600;
}
.nav-cta:hover, .nav-cta:focus-visible { color: var(--ink) !important; border-color: transparent !important; filter: brightness(1.08); }

.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--line); color: var(--text);
  width: 2.2rem; height: 2.2rem; border-radius: var(--radius);
  font-family: var(--mono); cursor: pointer;
}

/* ---------- ticker ---------- */
.ticker {
  border-bottom: 1px solid var(--line-soft);
  background: var(--panel);
  overflow: hidden;
  white-space: nowrap;
}
.ticker-track {
  display: inline-flex;
  align-items: center;
  padding-block: 0.55rem;
  animation: ticker-scroll 42s linear infinite;
  will-change: transform;
}
.ticker-track span {
  font-size: var(--step--1);
  color: var(--text-dim);
  padding-inline: 1.1rem;
  border-right: 1px solid var(--line);
}
.ticker-track b { color: var(--text); font-weight: 600; }
.ticker-track .up   { color: var(--bid); }
.ticker-track .down { color: var(--ask); }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(3.5rem, 9vw, 7rem);
}
.hero h1 { margin-bottom: 1.1rem; }
.hero p.lede { font-size: var(--step-1); color: var(--text); max-width: 42ch; }
.hero-actions { display: flex; gap: 0.9rem; margin-top: 2rem; flex-wrap: wrap; }

.btn {
  font-family: var(--mono);
  font-size: var(--step--1);
  font-weight: 600;
  text-decoration: none;
  padding: 0.8rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  display: inline-block;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--quote); color: var(--ink); border-color: var(--quote); }
.btn-primary:hover, .btn-primary:focus-visible { filter: brightness(1.08); }
.btn-ghost { color: var(--text); }
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--text-dim); }

/* ---------- listing card ---------- */
.listing-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.listing-card .lc-head {
  padding: 1.2rem 1.3rem 1rem;
  border-bottom: 1px solid var(--line-soft);
}
.lc-symbol {
  font-family: var(--mono);
  font-size: var(--step-1);
  font-weight: 600;
  color: #EFEFE9;
  word-break: break-word;
  display: block;
}
.lc-status {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  margin-top: 0.6rem;
  font-size: var(--step--1);
  color: var(--bid);
}
.lc-status::before { content: ""; width: 0.5em; height: 0.5em; background: var(--bid); border-radius: 50%; }
.lc-rows { padding: 0.4rem 1.3rem 1.1rem; }
.lc-row {
  display: flex; justify-content: space-between; gap: 1rem;
  padding-block: 0.6rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: var(--step--1);
}
.lc-row:last-child { border-bottom: none; }
.lc-row dt { color: var(--text-faint); }
.lc-row dd { margin: 0; color: var(--text); text-align: right; }

/* ---------- quote block ---------- */
.quote-block {
  border-left: 2px solid var(--quote);
  padding-left: 1.4rem;
  margin-block: 2rem;
}
.quote-block p {
  font-family: var(--serif);
  font-style: italic;
  font-size: var(--step-2);
  color: #EFEFE9;
  line-height: 1.3;
  max-width: 30ch;
}
.quote-block cite {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: var(--step--1);
  color: var(--text-faint);
  margin-top: 0.9rem;
}

/* ---------- ledger table ---------- */
.ledger { border-top: 1px solid var(--line); margin-top: 2.2rem; }
.ledger-row {
  display: grid;
  grid-template-columns: minmax(9rem, 14rem) 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--line-soft);
}
.ledger-row .lr-label {
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--quote);
  font-weight: 600;
}
.ledger-row .lr-label small { display: block; color: var(--text-faint); font-weight: 400; margin-top: 0.3rem; }
.ledger-row p { max-width: 58ch; }

/* ---------- driver grid ---------- */
.driver-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  margin-top: 2.2rem;
}
.driver {
  background: var(--ink);
  padding: 1.8rem;
}
.driver h3 { font-size: var(--step-0); margin-bottom: 0.6rem; }
.driver p { font-size: var(--step--1); }
.driver .tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  border: 1px solid var(--line);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius);
  margin-bottom: 0.9rem;
}

/* ---------- tiers ---------- */
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); margin-top: 2.2rem; }
.tier { background: var(--panel); padding: 1.8rem; }
.tier .tier-name { font-family: var(--mono); font-size: var(--step--1); color: var(--text-faint); }
.tier .tier-desc { margin-top: 0.9rem; font-size: var(--step--1); }
.tier.is-featured { background: var(--panel-2); }
.tier.is-featured .tier-name { color: var(--quote); }

/* ---------- section heads ---------- */
.section-head { max-width: 44rem; margin-bottom: 1.2rem; }
.section-head p { margin-top: 0.9rem; font-size: var(--step-0); }

/* ---------- form ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); margin-top: 2.2rem; }
form.inquiry { display: grid; gap: 1.1rem; }
.field { display: grid; gap: 0.5rem; }
.field label { font-size: var(--step--1); color: var(--text-faint); }
.field input, .field textarea {
  font-family: var(--mono);
  font-size: var(--step-0);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.75rem 0.9rem;
  resize: vertical;
}
.field input:focus-visible, .field textarea:focus-visible { outline: 2px solid var(--quote); outline-offset: 1px; border-color: var(--quote); }
.field textarea { min-height: 8rem; }
.hp-field { position: absolute; left: -9999px; }
.form-note { font-size: 0.78rem; color: var(--text-faint); margin-top: 0.4rem; }
.form-success {
  display: none;
  border: 1px solid var(--bid);
  color: var(--bid);
  padding: 1rem 1.2rem;
  border-radius: var(--radius);
  font-size: var(--step--1);
}
.form-success.is-visible { display: block; }
.inquiry.is-hidden { display: none; }

.direct-line dt { color: var(--text-faint); font-size: var(--step--1); }
.direct-line dd { margin: 0.4rem 0 1.4rem; }
.direct-line a { color: var(--quote); text-decoration: none; border-bottom: 1px solid transparent; }
.direct-line a:hover, .direct-line a:focus-visible { border-color: var(--quote); }

/* ---------- footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 2.5rem var(--gutter) 3rem;
}
.footer-row {
  max-width: var(--content-w);
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.footer-row p { font-size: var(--step--1); color: var(--text-faint); }
.footer-links { display: flex; gap: 1.4rem; }
.footer-links a { font-size: var(--step--1); color: var(--text-dim); text-decoration: none; }
.footer-links a:hover, .footer-links a:focus-visible { color: var(--text); }

/* ---------- thesis (long-form) ---------- */
.dossier { padding-block: clamp(3rem, 7vw, 5rem); }
.dossier-header { max-width: 46rem; padding-block: clamp(2.5rem, 6vw, 4rem); border-bottom: 1px solid var(--line-soft); }
.dossier-header .doc-meta { font-size: var(--step--1); color: var(--text-faint); margin-bottom: 1rem; }
.dossier article { max-width: 42rem; }
.dossier article > * + * { margin-top: 1.4rem; }
.dossier h2 { font-size: var(--step-2); margin-top: 3.2rem; }
.dossier h2:first-of-type { margin-top: 0; }
.dossier p { max-width: none; color: var(--text); }
.dossier .lede-note { color: var(--text-dim); font-size: var(--step--1); }
.sources { margin-top: 3.5rem; padding-top: 2rem; border-top: 1px solid var(--line-soft); }
.sources h3 { font-size: var(--step-0); color: var(--text-faint); font-family: var(--mono); }
.sources ol { padding-left: 1.2rem; margin-top: 1rem; }
.sources li { font-size: var(--step--1); color: var(--text-dim); margin-bottom: 0.6rem; }
.sources a { color: var(--quote); text-decoration: none; }
.sources a:hover, .sources a:focus-visible { text-decoration: underline; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  nav.primary {
    position: fixed; inset: 3.6rem 0 auto 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-soft);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.2rem var(--gutter) 1.6rem;
    gap: 1rem;
    transform: translateY(-110%);
    transition: transform 0.2s ease;
  }
  nav.primary.is-open { transform: translateY(0); }
  .nav-toggle { display: block; }
  .hero { grid-template-columns: 1fr; }
  .driver-grid { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .ledger-row { grid-template-columns: 1fr; gap: 0.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .ticker-track { animation: none; }
}