/* Home page: hero plane, about plane, conditions, steps, prices, pay, library band. */

/* ---------- hero ---------- */
.hero {
  --side: max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter)));
  display: grid; grid-template-columns: minmax(0, 43fr) minmax(0, 57fr);
  min-height: min(calc(100dvh - 70px), 900px);
}
.hero-plane { padding: clamp(40px, 4vw, 56px) clamp(28px, 4vw, 56px) clamp(40px, 4vw, 56px) var(--side); display: flex; align-items: flex-start; }
.hero-portrait { width: min(100%, 500px); }
.hero-portrait img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.hero-portrait figcaption { margin-top: 24px; font-size: 19px; line-height: 1.45; max-width: 30em; }
.hero-portrait figcaption b { display: block; font-size: clamp(26px, 1.2vw + 18px, 32px); line-height: 1.1; margin-bottom: 8px; }
.hero-portrait figcaption span { color: var(--on-blue-2); }
.hero-copy { padding: clamp(36px, 4vw, 56px) var(--side) clamp(40px, 4vw, 64px) clamp(28px, 4vw, 64px); display: flex; flex-direction: column; }
.hero-copy .lede { margin-top: clamp(24px, 2.6vw, 36px); }
.hero-ledger { margin-top: auto; padding-top: clamp(28px, 3vw, 44px); }
.hero-ledger .ledger-row:first-child { border-top: var(--rule); }

@media (prefers-reduced-motion: no-preference) {
  .hero-plane { animation: plane-in .9s var(--ease) both; }
  .hero-portrait { animation: rise .7s .35s var(--ease) both; }
  .hero .h1 { animation: rise .7s .2s var(--ease) both; }
}
@keyframes plane-in { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } }

@media (max-width: 1200px) and (min-width: 961px) { .hero { grid-template-columns: minmax(0, 36fr) minmax(0, 64fr); } }
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-plane { padding: 24px var(--gutter); }
  .hero-portrait { width: 100%; max-width: none; display: grid; grid-template-columns: clamp(112px, 30vw, 220px) 1fr; gap: 18px; align-items: center; }
  .hero-portrait figcaption { margin: 0; font-size: 16px; }
  .hero-portrait figcaption b { display: none; }
  .hero-copy { padding: 32px var(--gutter) 48px; }
  .hero-ledger { margin-top: 0; }
}

/* ---------- about (blue plane) ---------- */
.about { padding: var(--course) 0; }
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.about-prose { margin-top: clamp(28px, 3vw, 40px); font-size: clamp(18px, .4vw + 16px, 21px); }
.facts { margin-top: clamp(32px, 3vw, 48px); display: grid; grid-template-columns: 1fr 1fr; border-top: 2px solid var(--on-blue); }
.facts div { padding: 16px 16px 18px 0; border-bottom: 1px solid color-mix(in srgb, var(--on-blue) 35%, transparent); }
.facts dt { font-size: 16px; color: var(--on-blue-2); }
.facts dd { font-weight: 700; font-size: clamp(20px, .6vw + 17px, 24px); line-height: 1.2; }
.docs { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.doc { padding: 0; border: 2px solid var(--on-blue); background: var(--on-blue); color: #131416; text-align: left; cursor: zoom-in; display: flex; flex-direction: column; }
.doc img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; object-position: top; }
.doc span { display: block; padding: 14px 14px 16px; font-size: 15px; line-height: 1.4; border-top: 2px solid #131416; }
.doc span b { display: block; font-size: 18px; }
.doc:hover span { background: #131416; color: var(--on-blue); }
.doc:focus-visible { outline-color: var(--on-blue); }
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
}
@media (max-width: 340px) { .facts { grid-template-columns: 1fr; } }

/* ---------- conditions ---------- */
.conditions { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: clamp(20px, 2.4vw, 36px); }
.conditions li { border-top: var(--rule); padding: 16px 0 36px; }
.conditions p { margin-top: 8px; color: var(--ink-2); font-size: 17px; line-height: 1.45; }
.cond-more { margin-top: 8px; max-width: 46em; font-size: clamp(18px, .4vw + 16px, 21px); }
@media (max-width: 1100px) { .conditions { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .conditions { grid-template-columns: 1fr; } .conditions li { padding-bottom: 24px; } }

/* ---------- steps ---------- */
.how { background: var(--paper-2); }
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(20px, 2.4vw, 36px); counter-reset: none; }
.steps li { border-top: var(--rule); padding-top: 12px; }
.step-n { display: block; font-weight: 700; font-size: clamp(80px, 8vw, 136px); line-height: .9; letter-spacing: -.04em; margin-bottom: 12px; color: var(--blue-ink); }
.steps p { margin-top: 8px; color: var(--ink-2); max-width: 22em; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 40px; } }
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; row-gap: 0; }
  .steps li { display: grid; grid-template-columns: 64px 1fr; column-gap: 12px; padding: 16px 0 20px; }
  .step-n { grid-row: span 2; font-size: 64px; margin: 0; }
  .steps p { grid-column: 2; }
}

/* ---------- prices ---------- */
.prices-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 4vw, 72px); align-items: start; }
.prices-grid .course-head { position: sticky; top: 100px; margin: 0; }
.prices-ledger .ledger-row { padding: 22px 0; }
.prices-ledger .ledger-name small { max-width: 36em; }
.prices-ledger .btn { min-width: 210px; }
@media (max-width: 960px) {
  .prices-grid { grid-template-columns: 1fr; }
  .prices-grid .course-head { position: static; }
}

/* ---------- pay ---------- */
.pay-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 96px); align-items: start; }
.pay-lede { margin-top: 24px; }
.pay-req { margin-top: 32px; border-top: var(--rule); border-bottom: var(--rule); }
.pay-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.terms dl { border-top: var(--rule); }
.terms dl div { padding: 18px 0 20px; border-bottom: var(--hair); }
.terms dd { margin-top: 4px; color: var(--ink-2); }
@media (max-width: 960px) { .pay-grid { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .pay-actions .btn { width: 100%; } }

/* ---------- library band (green) ---------- */
.lib-band { padding: var(--course) 0; }
.lib-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(40px, 6vw, 96px); align-items: end; }
.lib-grid .lede { margin: 24px 0 32px; }
.lib-tests { display: grid; grid-template-columns: 1fr 1fr; border-top: 2px solid var(--on-green); }
.lib-tests a { display: block; padding: 14px 12px 16px 0; border-bottom: 1px solid color-mix(in srgb, var(--on-green) 35%, transparent); text-decoration: none; font-size: 16px; }
.lib-tests a b { display: block; font-size: clamp(26px, 1.2vw + 18px, 34px); line-height: 1.05; }
.lib-tests a:hover b { text-decoration: underline; }
@media (max-width: 900px) { .lib-grid { grid-template-columns: 1fr; } }