/* ==========================================================================
   QT Trading Lab — public landing page (index.html).
   Sections reuse library.css (stats, tracks, modules, about, footer).
   Requires qt-tokens.css, qt-components.css, qt-shell.css and library.css.
   ========================================================================== */

/* ---- Top bar ---- */
.land-bar {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--color-divider);
  background: var(--glass-fill-bar);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
}

.land-bar-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 44px;
}

.land-bar .qt-brand {
  padding: 0;
}

.land-bar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.land-bar-link {
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--color-text-muted);
  font-size: 13.5px;
  text-decoration: none;
}

.land-bar-link:hover {
  color: var(--color-text);
}

.land-bar .qt-btn {
  min-height: 34px;
  padding: 6px 14px;
  font-size: 13.5px;
}

/* ---- Page ---- */
.land {
  display: flex;
  flex-direction: column;
  gap: 72px;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 44px 64px;
}

/* ---- Hero ---- */
.land-hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 76px;
}

.land-hero h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(42px, 6.4vw, 76px);
  font-weight: var(--font-heading-weight);
  line-height: 1;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

.land-hero .lib-lede {
  font-size: 17px;
}

.land-next {
  align-self: flex-start;
  margin: 0;
  padding: 8px 12px;
  border: 1px solid var(--color-accent-800);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-accent) 8%, transparent);
  color: var(--color-accent-300);
  font-size: 14px;
}

.land-next[hidden] {
  display: none;
}

.land-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
}

.land-actions .qt-btn {
  min-height: 44px;
  padding: 10px 20px;
  font-size: 15px;
}

.land-note {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-faint);
}

.land-note a {
  color: var(--color-text-muted);
  text-underline-offset: 3px;
}

.land-note a:hover {
  color: var(--color-accent-300);
}

.land-hero .lib-stats {
  margin-top: 30px;
}

/* ---- Track cards ---- */
.land-access {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--color-text-faint);
}

.land-access--free {
  color: var(--color-accent-300);
}

/* ---- How it works ---- */
.land-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.land-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 16px;
  background: linear-gradient(to right, var(--color-divider), transparent) no-repeat top / 100% 1px;
}

.land-step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-accent-300);
}

.land-step h3 {
  margin: 0;
  font-size: 17px;
  font-weight: var(--font-heading-weight);
}

.land-step p {
  max-width: 40ch;
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* ---- Edge Optimizer ---- */
.land-eo {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px 40px;
  padding: 28px 30px;
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(120deg, color-mix(in srgb, var(--color-accent) 9%, transparent), transparent 60%),
    var(--glass-fill);
}

.land-eo-logo {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.land-eo h2 {
  margin: 8px 0 8px;
  font-size: 24px;
  font-weight: var(--font-heading-weight);
  letter-spacing: -0.01em;
}

.land-eo p:not(.qt-eyebrow) {
  max-width: 62ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--color-text-muted);
}

/* ---- Closing call to action ---- */
.land-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.land-cta h2 {
  margin: 0;
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: var(--font-heading-weight);
  letter-spacing: -0.02em;
}

.land-cta p {
  margin: 0;
  color: var(--color-text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 1023px) {
  .land-bar-inner {
    padding: 12px 32px;
  }

  .land {
    padding: 0 32px 56px;
  }

  .land-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .land-eo {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }

  .land-eo .qt-btn {
    grid-column: 2;
    justify-self: start;
  }
}

@media (max-width: 767px) {
  .land-bar-inner {
    padding: 10px 18px;
  }

  .land-bar-link,
  .land-bar-signup {
    display: none;
  }

  .land {
    gap: 56px;
    padding: 0 18px 40px;
  }

  .land-hero {
    padding-top: 44px;
  }

  .land-actions .qt-btn {
    width: 100%;
  }

  .land-eo {
    grid-template-columns: minmax(0, 1fr);
    padding: 22px 20px;
  }

  .land-eo-logo {
    width: 48px;
    height: 48px;
    border-radius: 11px;
  }

  .land-eo .qt-btn {
    grid-column: 1;
  }
}