.problem-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(36px, 6vw, 80px);
  align-items: start;
}
.problem-grid h2 { max-width: 13ch; margin-bottom: 20px; }
.problem-list { border-top: 1px solid var(--border-strong); }
.pain {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.pain-num {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--accent);
}
.pain h3 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.9vw, 1.5rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 5px;
}
.pain p { color: var(--text-secondary); font-size: 0.96875rem; }
.turn {
  display: flex;
  gap: 10px;
  margin-top: 28px;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-weight: var(--weight-medium);
  line-height: 1.25;
  letter-spacing: -0.02em;
}
.turn span { flex: none; }

.how .section-head h2 { max-width: 12ch; }
.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--border-strong);
}
.step {
  padding: 26px clamp(18px, 2.4vw, 32px) 0;
  border-left: 1px solid var(--border-subtle);
}
.step:first-child { border-left: 0; padding-left: 0; }
.step:last-child { padding-right: 0; }
.step-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 4.2vw, 3.8rem);
  font-weight: var(--weight-bold);
  line-height: 0.9;
  letter-spacing: -0.05em;
  color: var(--state-warning);
  margin-bottom: 18px;
}
.step h3 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 8px;
}
.step p { color: var(--text-secondary); font-size: 0.96875rem; }
.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 42px;
  padding: 14px 18px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-input);
  font-family: var(--font-mono);
  font-size: 0.65625rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.flow-arr { color: var(--accent); }

.product-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.product-head > div:first-child { flex: 1 1 auto; min-width: 0; max-width: 780px; }
.product-head h2 { max-width: none; margin-bottom: 16px; }
.product-lead { font-size: 1.0625rem; max-width: 46ch; }
.tabs {
  display: inline-flex;
  flex: none;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: var(--surface-raised);
}
.tab {
  min-height: 44px;
  padding: 7px 15px;
  border: 0;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.78125rem;
  font-weight: var(--weight-medium);
  transition: background var(--dur-fast), color var(--dur-fast);
}
.tab:hover { color: var(--text-primary); }
.tab.is-active { background: var(--ink-0); color: var(--paper-0); }
.product-panel {
  display: grid;
  grid-template-columns: 1fr;
}
.browser {
  margin: 0;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface-raised);
  box-shadow: var(--shadow-panel);
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 5px;
  height: var(--browser-bar-height);
  padding: 0 12px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--border-subtle);
}
.browser-bar i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border-strong);
}
.browser-bar span {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.59375rem;
  color: var(--text-muted);
}
.browser img { width: 100%; height: auto; }
.browser-caption {
  padding: 9px 12px;
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-raised);
  font-family: var(--font-mono);
  font-size: 0.59375rem;
  letter-spacing: 0.02em;
  color: var(--text-muted);
}
.product-notes {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
}
.product-notes h3 {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.1vw, 1.8rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.025em;
  line-height: 1.16;
  margin-bottom: 8px;
}
.product-notes > p { grid-column: 1; grid-row: 2; color: var(--text-secondary); font-size: 0.9375rem; max-width: 54ch; }
.checklist {
  grid-column: 2;
  grid-row: 1 / span 2;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
}
.check { flex: none; color: var(--accent); font-weight: var(--weight-bold); }
.vertical-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  padding-bottom: 0;
  border-bottom: 1px solid var(--border-strong);
}
.vertical-tab {
  position: relative;
  min-height: 44px;
  padding: 10px 16px 14px;
  border: 0;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: var(--weight-medium);
}
.vertical-tab::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--dur-base) var(--ease-out);
}
.vertical-tab:hover { color: var(--text-primary); }
.vertical-tab.is-active { color: var(--text-primary); }
.vertical-tab.is-active::after { transform: scaleX(1); }
.vertical-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(28px, 5vw, 64px);
  padding-top: clamp(28px, 4vw, 40px);
}
.vertical-quote {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.9rem);
  font-weight: var(--weight-medium);
  line-height: 1.08;
  letter-spacing: -0.035em;
  max-width: 20ch;
}
.vertical-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.vertical-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  background: var(--surface-raised);
  font-family: var(--font-mono);
  font-size: 0.65625rem;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}
.vertical-example {
  margin-top: 26px;
  padding: 12px 14px;
  border-top: 1px dashed var(--border-strong);
  border-bottom: 1px dashed var(--border-strong);
  font-family: var(--font-mono);
  font-size: 0.71875rem;
  color: var(--text-muted);
}
.vertical-panel.is-active { display: grid; }
.vertical-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border-subtle);
}
.vertical-list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 12px;
  padding: 17px 0;
  border-bottom: 1px solid var(--border-subtle);
}
.vertical-list span {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.65625rem;
  color: var(--accent);
}
.vertical-list p { color: var(--text-secondary); font-size: 0.9375rem; }

.audit {
  background: var(--surface-page);
  color: var(--text-primary);
  border-bottom-color: var(--border-subtle);
}
.audit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.audit h2 { color: var(--text-primary); max-width: 16ch; margin-bottom: 20px; }
.audit p { color: var(--text-secondary); max-width: 50ch; }
.audit .section-label { color: var(--text-muted); }
.audit-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.audit-pill {
  padding: 6px 12px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.65625rem;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
}
.audit-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  margin-top: 22px;
  color: var(--accent);
  font-size: 0.875rem;
  text-underline-offset: 4px;
}
.audit-link:hover { color: var(--accent-hover); }
.ledger {
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.71875rem;
}
.ledger-head, .ledger-row {
  display: grid;
  grid-template-columns: 48px 1.15fr 1.15fr 24px;
  gap: 10px;
  align-items: center;
  padding: 11px 14px;
}
.ledger-head {
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.59375rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.ledger-row { border-bottom: 1px solid var(--border-subtle); color: var(--text-muted); }
.ledger-row b { color: var(--text-primary); font-weight: var(--weight-medium); }
.ledger-check { color: var(--accent); text-align: right; }
.ledger-foot {
  padding: 12px 14px;
  background: var(--surface-sunken);
  color: var(--text-muted);
  font-size: 0.625rem;
  letter-spacing: 0.03em;
}
.audit-note {
  margin-top: 26px;
  color: var(--text-faint);
  font-family: var(--font-mono);
  font-size: 0.59375rem;
  letter-spacing: 0.02em;
}