.course-main { padding: 160px 24px 72px; max-width: 1230px; margin: auto; }
.course-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 40px; }
.course-toolbar nav, .course-account { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; }
.course-toolbar a[aria-current="page"] { color: var(--flame-dark); font-weight: 800; }
.text-button { border: 0; background: none; color: var(--flame-dark); cursor: pointer; padding: 8px 0; font: inherit; text-decoration: underline; text-underline-offset: 4px; }
.catalog-intro { padding: 18px 0 48px; }
.catalog-intro h1 { font-size: clamp(34px, 4.8vw, 60px); line-height: 1.25; letter-spacing: -.035em; margin-bottom: 24px; }
.catalog-intro .text-button { display: inline-block; margin-top: 8px; font-size: 15px; }
.catalog-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }
.catalog-heading h2 { font-size: 26px; margin-bottom: 18px; }
.course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.course-card { min-width: 0; overflow: hidden; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 12px; background: #fffcf7; color: var(--ink); transition: transform .2s, box-shadow .2s; }
.course-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px #7a3c1714; }
.course-card:focus-visible, .course-back:focus-visible { outline: 3px solid var(--flame-dark); outline-offset: 5px; }
.course-card-cover { min-height: 210px; padding: 24px; display: flex; flex-direction: column; justify-content: space-between; gap: 14px; color: #fff9ed; background: #c64a20; }
.course-card-cover span { font-size: 12px; letter-spacing: .1em; }
.course-card-cover strong { font-size: 76px; line-height: 1; letter-spacing: -.06em; }
.course-card-cover small { font-size: 17px; }
.course-card-body { display: flex; flex-direction: column; flex: 1; padding: 24px; }
.course-card-kind { color: var(--flame-dark); font-size: 12px; letter-spacing: .06em; margin-bottom: 8px; }
.course-card h3 { font-size: 25px; line-height: 1.4; margin-bottom: 12px; overflow-wrap: anywhere; }
.course-card-summary { color: var(--muted); font-size: 15px; margin-bottom: 16px; }
.course-card-meta { color: var(--muted); font-size: 13px; margin-top: auto; margin-bottom: 20px; }
.course-card-bottom { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 16px; border-top: 1px solid var(--line); }
.course-card-bottom .course-price { font-size: 28px; }
.course-card-bottom > span { color: var(--flame-dark); font-size: 14px; white-space: nowrap; }
.course-grid > .course-empty { grid-column: 1 / -1; }
.course-back { display: inline-block; margin-bottom: 8px; color: var(--flame-dark); font-size: 15px; }
.course-hero { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 64px; align-items: center; margin: 32px 0 72px; }
.course-hero h1 { font-size: clamp(42px, 5.5vw, 72px); line-height: 1.18; margin-bottom: 20px; overflow-wrap: anywhere; }
.course-hero h1 span { color: var(--flame-dark); }
.course-intro { color: var(--muted); font-size: 19px; max-width: 560px; }
.course-cover { position: relative; overflow: hidden; min-height: 370px; display: flex; flex-direction: column; justify-content: space-between; padding: 36px; border-radius: 12px; background: #c64a20; color: #fff9ed; box-shadow: 18px 18px 0 #efd9bc; }
.course-cover::after { content: ""; position: absolute; width: 320px; height: 320px; right: -145px; top: 95px; border: 1px solid #ffffff40; border-radius: 50%; box-shadow: 0 0 0 40px #ffffff0b, 0 0 0 80px #ffffff08; }
.course-cover strong { font-size: clamp(76px, 9vw, 120px); letter-spacing: -.06em; line-height: 1; z-index: 1; }
.course-cover p { font-size: 23px; margin: 12px 0 0; }
.course-cover small { letter-spacing: .12em; }
.course-purchase { display: flex; align-items: center; flex-wrap: wrap; gap: 20px; margin: 30px 0 12px; }
.course-price { font-size: 34px; font-weight: 800; color: var(--flame-dark); }
.course-note { font-size: 14px; color: var(--muted); margin: 10px 0; }
.course-columns { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; }
.course-section { margin-bottom: 42px; }
.course-section h2, .library-title { font-size: 30px; line-height: 1.35; }
.course-section p { color: var(--muted); }
.course-outline { border-top: 1px solid var(--line); }
.course-outline li { display: flex; align-items: center; gap: 18px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.course-outline .lesson-number { color: var(--flame-dark); font-variant-numeric: tabular-nums; }
.course-aside { border-top: 3px solid var(--flame); padding: 24px; background: var(--panel); align-self: start; }
.course-aside h2 { font-size: 21px; line-height: 1.3; }
.course-aside ol { list-style: decimal; padding-left: 22px; }
.course-aside li { margin: 12px 0; }
.course-aside a { color: var(--flame-dark); text-decoration: underline; }
.course-status { border-left: 3px solid var(--flame); padding: 14px 18px; background: #fffaf2; margin: 20px 0; }
.course-status:empty { display: none; }
.course-empty { padding: 32px; border: 1px dashed #b69b84; border-radius: 12px; color: var(--muted); background: #fffcf7; }
.course-main button { font-family: inherit; cursor: pointer; }
.course-main button:disabled, .course-dialog button:disabled { cursor: not-allowed; opacity: .55; transform: none; }
button:focus-visible, summary:focus-visible, input:focus-visible { outline: 3px solid #ca2c1c; outline-offset: 3px; }
.course-dialog { width: min(460px, calc(100% - 32px)); max-height: calc(100dvh - 32px); border: 1px solid var(--line); border-radius: 20px; padding: 32px; color: var(--ink); background: #fffaf2; box-shadow: var(--shadow); }
.course-dialog::backdrop { background: #20181590; backdrop-filter: blur(5px); }
.course-dialog h2 { font-size: 28px; line-height: 1.3; padding-right: 20px; }
.course-dialog-close { position: absolute; top: 10px; right: 14px; border: 0; background: transparent; font-size: 30px; color: var(--muted); cursor: pointer; }
.course-dialog label { display: block; margin: 18px 0 8px; font-weight: 600; }
.course-dialog input { min-width: 0; width: 100%; font: inherit; padding: 12px; border: 1px solid #c9b7a8; border-radius: 8px; background: #fff; }
.code-field { display: flex; gap: 10px; align-items: center; }
.code-field button { flex-shrink: 0; font: inherit; background: #fff1e3; color: var(--flame-dark); border: 1px solid #e6bda4; border-radius: 8px; min-height: 48px; padding: 0 12px; cursor: pointer; }
.course-dialog .selected-button { width: 100%; margin-top: 22px; font-size: 18px; cursor: pointer; }
.course-dialog .course-consent { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; font-weight: 400; color: var(--muted); }
.course-consent input { width: 17px; height: 17px; flex: 0 0 17px; margin-top: 3px; }
.form-message { min-height: 24px; margin-top: 14px; font-size: 14px; color: var(--flame-dark); }
.payment-options { display: grid; gap: 12px; margin-top: 24px; }
.payment-options button { text-align: left; min-height: 58px; border: 1px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); font: inherit; font-weight: 700; padding: 14px 20px; cursor: pointer; }
.payment-options button:hover { border-color: var(--flame); }
.payment-options button { display: flex; align-items: center; gap: 10px; }
.payment-options svg { width: 30px; height: 30px; flex-shrink: 0; }
.payment-qr-wrap { position: relative; width: 240px; max-width: 100%; margin: 20px auto; }
.payment-qr { display: block; width: 100%; }
.payment-qr-mark { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 20%; aspect-ratio: 1; padding: 3px; border-radius: 8px; background: #fff; pointer-events: none; }
.payment-qr-mark svg { display: block; width: 100%; height: 100%; }
.payment-frame { display: block; width: 240px; height: 250px; max-width: 100%; border: 0; margin: 20px auto; background: white; }
.payment-result { text-align: center; }
.payment-result code { font-size: 11px; overflow-wrap: anywhere; }
.library-card { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px; margin: 18px 0; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.library-card h2 { font-size: 25px; }
.library-card p { margin-bottom: 8px; color: var(--muted); }
.order-list { margin-top: 52px; }
.order-row { display: flex; justify-content: space-between; align-items: center; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.order-row small { display: block; color: var(--muted); overflow-wrap: anywhere; }
.learning-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 24px; }
.learning-video { width: 100%; aspect-ratio: 16 / 9; background: #161311; border-radius: 12px; }
.learning-layout h1 { font-size: 30px; line-height: 1.4; }
.lesson-list { border: 1px solid var(--line); background: #fffcf7; padding: 18px; border-radius: 12px; align-self: start; }
.lesson-list h2 { font-size: 20px; }
.lesson-list button { display: block; width: 100%; text-align: left; font: inherit; padding: 14px 10px; background: none; border: 0; border-bottom: 1px solid var(--line); }
.lesson-list button[aria-current="true"] { background: #ffebda; color: var(--flame-dark); font-weight: 800; }
.course-teaser { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 36px; border-top: 3px solid var(--flame); background: var(--panel); }
.course-teaser h2 { font-size: clamp(28px, 4vw, 42px); }
.course-teaser p { margin-bottom: 0; }
[hidden] { display: none !important; }
@media (max-width: 980px) {
  .course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
  .course-main { padding-top: 190px; }
  .course-hero { gap: 32px; }
  .course-columns, .learning-layout { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .course-hero { grid-template-columns: 1fr; }
  .course-hero h1 { font-size: clamp(36px, 6vw, 52px); }
}
@media (max-width: 640px) {
  .catalog-intro { padding-top: 8px; padding-bottom: 32px; }
  .course-grid { grid-template-columns: 1fr; }
  .course-main { padding: 210px 18px 48px; }
  .course-toolbar { align-items: flex-start; margin-bottom: 26px; font-size: 14px; }
  .course-toolbar nav, .course-account { gap: 10px; }
  .course-hero { grid-template-columns: 1fr; gap: 32px; margin-bottom: 52px; }
  .course-cover { min-height: 270px; padding: 28px; box-shadow: 8px 8px 0 #efd9bc; }
  .course-hero h1 { font-size: clamp(32px, 9.5vw, 40px); }
  .course-purchase .selected-button { width: 100%; }
  .course-dialog { padding: 26px 22px; }
  .library-card, .course-teaser { align-items: flex-start; flex-direction: column; padding: 24px; }
  .library-card .selected-button, .course-teaser .selected-button { width: 100%; }
  .order-row { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .selected-button, .course-card { transition: none; }
  .course-card:hover { transform: none; }
}