:root {
  --forest: #173f35;
  --cream: #f5f3eb;
  --ink: #183d34;
  --muted: #61726a;
  --accent: #e5a18a;
}
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { color: var(--ink); font-family: "Helvetica Neue", Arial, sans-serif; background: #fff; }
a { text-underline-offset: .2em; }
.container { max-width: 1240px; }
.site-header { background: #fff; border-bottom: 1px solid #e6eae5; }
.navbar-brand { color: var(--forest); font-weight: 750; font-size: 1.25rem; }
.brand-symbol { background: var(--forest); color: white; width: 43px; height: 43px; display: grid; place-content: center; position: relative; font-family: Georgia, serif; font-size: 2rem; border-radius: 9px; }
.brand-symbol span { color: var(--accent); position: absolute; right: 5px; bottom: 0; }
.nav-link { color: var(--forest); font-weight: 500; }
.btn-forest { background: var(--forest); border: 1px solid var(--forest); color: white; border-radius: 5px; padding: .8rem 1.25rem; }
.btn-forest:hover, .btn-forest:focus { background: #285e4f; color: white; border-color: #285e4f; }
.btn-forest span { margin-left: 1.25rem; }
.hero-section { background: var(--cream); padding: 65px 0 25px; overflow: hidden; }
.eyebrow { font-size: .72rem; letter-spacing: .16em; font-weight: 700; margin-bottom: 24px; }
.status-dot { display: inline-block; background: #8d9a50; width: 7px; height: 7px; margin-right: 9px; border-radius: 50%; }
.hero-title { font-family: Georgia, "Times New Roman", serif; font-weight: 400; font-size: clamp(3rem,5.2vw,4.9rem); line-height: 1.06; letter-spacing: -.045em; white-space: pre-line; margin-bottom: 24px; }
.hero-description { max-width: 510px; font-size: 1.05rem; color: var(--muted); line-height: 1.8; }
.hero-copy { padding-top: 22px; padding-bottom: 20px; }
.carousel-item { min-height: 450px; }
.learning-art { height: 410px; background: #dce5d7; border-radius: 48% 48% 8px 8px; position: relative; overflow: hidden; }
.art-label { position: absolute; top: 44px; left: 0; right: 0; text-align: center; font-size: .65rem; letter-spacing: .2em; }
.art-orbit { width: 270px; height: 270px; position: absolute; border: 1px solid #92a58b; border-radius: 50%; top: 85px; left: 60px; }
.art-book { position: absolute; height: 70px; width: 240px; border-radius: 5px 16px 16px 5px; left: 72px; box-shadow: 0 10px 16px #173f3515; }
.art-book:after { content: ""; position: absolute; right: 8px; top: 11px; bottom: 11px; width: 170px; background: repeating-linear-gradient(to bottom,#f5efdf 0,#f5efdf 3px,#cfcab9 4px,#f5efdf 5px); border-radius: 0 12px 12px 0; }
.book-one { background: #ca7d5c; top: 228px; transform: rotate(-10deg); }
.book-two { background: #355a44; top: 165px; transform: rotate(6deg); }
.book-three { background: #d8c47d; top: 105px; transform: rotate(-6deg); }
.art-star { font-size: 90px; line-height: 1; position: absolute; color: var(--forest); top: 25px; right: 15px; }
.art-caption { position: absolute; bottom: 24px; left: 30px; font-family: Georgia,serif; font-size: 1.3rem; line-height: 1.1; }
.art-type { font-family: Georgia,serif; font-size: 12rem; color: #a9b69a; line-height: 1; }
.art-type span { display: block; color: var(--accent); }
.slide-toolbar { border-top: 1px solid #dcded2; padding-top: 20px; margin-top: 15px; }
.slide-progress { display: flex; align-items: center; gap: 15px; font-size: .72rem; color: var(--muted); }
.progress-line { width: 60px; height: 1px; background: #b7c0b0; }
.slide-arrow { width: 42px; height: 42px; border-radius: 50%; border: 1px solid #b3c0b3; background: transparent; color: var(--forest); font-size: 1.2rem; }
.slide-arrow:hover { background: var(--forest); color: white; }
.catalog-section { padding: 85px 0 100px; }
.section-title { font-family: Georgia,serif; font-size: clamp(2rem,3vw,2.8rem); letter-spacing: -.035em; margin-bottom: 15px; }
.section-description { color: var(--muted); }
.catalog-pill { display: inline-block; border: 1px solid #c4cfbd; background: #eff3e9; padding: .65rem 1.15rem; border-radius: 24px; font-size: .85rem; }
.course-card { border: 1px solid #e0e5dc; border-radius: 10px; overflow: hidden; transition: transform .2s,box-shadow .2s; }
.course-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px #173f3510; }
.course-cover { height: 170px; background: #dce6d7; position: relative; overflow: hidden; }
.course-grid>div:nth-child(3n+2) .course-cover { background: #e9d8c9; }
.course-grid>div:nth-child(3n) .course-cover { background: #e5dfb9; }
.cover-mark { position: absolute; right: 28px; top: 12px; font-family: Georgia,serif; font-size: 6.5rem; color: #486852; }
.cover-lines { position: absolute; border: 1px solid #ffffff88; width: 190px; height: 190px; border-radius: 50%; top: 65px; left: -20px; box-shadow: 0 0 0 22px #ffffff25,0 0 0 44px #ffffff20; }
.course-label { color: #607451; font-size: .67rem; letter-spacing: .12em; font-weight: 700; }
.course-title { color: var(--forest); text-decoration: none; line-height: 1.4; }
.course-link { padding-top: 20px; border-top: 1px solid #e4e9e0; color: var(--forest); font-size: .85rem; font-weight: 600; display: flex; justify-content: space-between; text-decoration: none; }
.empty-catalog { padding: 50px; background: #f6f7f2; border: 1px solid #e0e5dc; border-radius: 10px; }
.empty-catalog>span { float: right; font-size: 3rem; color: #a2b299; }
.empty-catalog h3 { font-family: Georgia,serif; font-size: 1.7rem; }
.empty-catalog p { color: var(--muted); }
.site-footer { background: var(--forest); color: #e7eadf; padding: 55px 0 20px; }
.footer-brand { color: #fff; font-weight: 700; font-size: 1.5rem; text-decoration: none; }
.footer-brand span { color: var(--accent); margin-left: 8px; }
.footer-description { color: #c3d0c4; font-size: .9rem; }
.footer-link { color: #fff; font-size: .9rem; }
.footer-bottom { display: flex; justify-content: space-between; border-top: 1px solid #ffffff26; margin-top: 40px; padding-top: 18px; color: #bacabd; font-size: .7rem; }
.content-main { padding: 55px 0 95px; min-height: 65vh; }
.content-title { font-family: Georgia,serif; font-size: clamp(2.4rem,5vw,4rem); max-width: 900px; margin-bottom: 35px; letter-spacing: -.035em; }
.rich-content { max-width: 850px; line-height: 1.85; color: #42574c; font-size: 1.08rem; }
.rich-content img { max-width: 100%; height: auto; }
.back-link { color: var(--forest); font-size: .85rem; }
.skip-link { background: #fff; padding: 15px; z-index: 1000; position: absolute; }
:focus-visible { outline: 3px solid #b16c40; outline-offset: 4px; }
@media (max-width: 991px) {
  .hero-section { padding-top: 35px; }
  .hero-title { font-size: 3.5rem; }
  .learning-art { height: 340px; max-width: 420px; margin: auto; }
  .carousel-item { min-height: 790px; }
  .carousel-item:not(:first-child) .hero-copy { min-height: 790px; }
  .catalog-section { padding: 55px 0; }
  .navbar-collapse { padding-top: 18px; }
  .nav-item .btn { margin-top: 10px; }
}
@media (max-width: 575px) {
  .hero-title { font-size: 2.9rem; }
  .hero-section .container { padding-left: 22px; padding-right: 22px; }
  .hero-description { font-size: 1rem; }
  .learning-art { height: 300px; }
  .art-book { left: 35px; }
  .art-orbit { left: 25px; }
  .art-caption { font-size: 1.1rem; bottom: 12px; }
  .carousel-item { min-height: 760px; }
  .carousel-item:not(:first-child) .hero-copy { min-height: 760px; }
  .empty-catalog { padding: 30px; }
  .footer-bottom span { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .course-card { transition: none; }
}