:root{--koji-ink:#2f2d27;--koji-accent:#8d5f36;--koji-soft:#f6f0e7;--koji-line:#dfd5c8;--koji-green:#58735a}.koji-wrap{max-width:1120px;margin:0 auto;padding:48px 20px 80px;color:var(--koji-ink)}.koji-hero,.koji-page-header{padding:36px;border-radius:20px;background:linear-gradient(135deg,#f8f3eb,#eee2d2);margin-bottom:24px}.koji-eyebrow{font-weight:700;letter-spacing:.08em;color:var(--koji-accent);margin:0 0 8px}.koji-hero h1,.koji-page-header h1,.koji-lesson-page h1{margin:.1em 0;font-size:clamp(28px,4vw,46px)}.koji-progress-card{display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:center;border:1px solid var(--koji-line);padding:24px;border-radius:16px;background:#fff}.koji-progress-card strong{display:block;font-size:34px}.koji-progress-card span{display:block;color:#666}.koji-progress-card progress{width:100%;height:18px}.koji-next{margin:24px 0;padding:20px 24px;border-left:5px solid var(--koji-accent);background:var(--koji-soft)}.koji-next span{display:block;font-size:13px}.koji-next a{font-weight:700;font-size:20px}.koji-step{margin-top:36px}.koji-step h2{font-size:24px;border-bottom:2px solid var(--koji-line);padding-bottom:10px}.koji-lesson-list{display:grid;gap:10px}.koji-lesson-item{display:grid;grid-template-columns:76px 1fr;gap:16px;align-items:center;padding:16px;border:1px solid var(--koji-line);border-radius:12px;background:#fff;text-decoration:none;color:inherit}.koji-lesson-item:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,0,0,.06)}.koji-status{font-size:12px;text-align:center;border-radius:999px;padding:6px;background:#eee}.koji-lesson-item.is-complete .koji-status{background:#e2eee2;color:var(--koji-green)}.koji-lesson-item small,.koji-lesson-item strong{display:block}.koji-video{position:relative;padding-top:56.25%;background:#111;border-radius:16px;overflow:hidden;margin:24px 0}.koji-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.koji-content-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(260px,1fr);gap:28px;margin-top:28px}.koji-info{border:1px solid var(--koji-line);border-radius:14px;padding:20px;margin-bottom:16px}.koji-info h2{font-size:18px;margin-top:0}.koji-button,.koji-complete-button{display:inline-flex;justify-content:center;align-items:center;border:0;border-radius:999px;padding:14px 24px;background:var(--koji-accent);color:#fff;text-decoration:none;font-weight:700}.koji-button.secondary{background:var(--koji-soft);color:var(--koji-ink)}.koji-material-list{display:flex;flex-direction:column;gap:10px}.koji-complete-button{width:100%;margin-top:28px;font-size:17px}.koji-complete-button.is-complete{background:var(--koji-green)}.koji-lesson-nav{display:flex;justify-content:space-between;margin-top:28px}.koji-breadcrumb{font-size:14px;color:#666;margin-bottom:20px}.koji-alert{padding:16px;background:#fff3cd;border-radius:10px}@media(max-width:767px){.koji-wrap{padding:28px 16px 56px}.koji-progress-card,.koji-content-grid{grid-template-columns:1fr}.koji-hero{padding:24px}.koji-lesson-item{grid-template-columns:64px 1fr}}
.koji-room-heading{margin:42px 0 18px;font-size:clamp(22px,3vw,30px);text-align:center}.koji-room-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.koji-room-tab{display:flex;align-items:flex-start;gap:14px;width:100%;min-height:142px;padding:20px;text-align:left;color:var(--koji-ink);background:#fff;border:1px solid var(--koji-line);border-radius:18px;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.koji-room-tab:hover,.koji-room-tab:focus-visible{transform:translateY(-2px);box-shadow:0 10px 28px rgba(64,46,28,.1);outline:3px solid rgba(141,95,54,.18);outline-offset:2px}.koji-room-tab.is-active{color:#fff;background:linear-gradient(145deg,#9b6d43,#765032);border-color:#765032;box-shadow:0 10px 26px rgba(85,54,29,.18)}.koji-room-number{display:inline-grid;place-items:center;flex:0 0 38px;height:38px;border-radius:50%;font-size:12px;font-weight:700;background:var(--koji-soft);color:var(--koji-accent)}.koji-room-tab.is-active .koji-room-number{background:rgba(255,255,255,.2);color:#fff}.koji-room-tab strong,.koji-room-tab small{display:block}.koji-room-tab strong{font-size:19px;line-height:1.4}.koji-room-tab small{margin-top:8px;line-height:1.65;color:#71685f}.koji-room-tab.is-active small{color:rgba(255,255,255,.82)}.koji-room-panel{margin-top:24px;padding:30px;border:1px solid var(--koji-line);border-radius:20px;background:#faf8f4}.koji-room-panel[hidden]{display:none}.koji-room-title{display:flex;align-items:baseline;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--koji-line)}.koji-room-title p{margin:0;color:var(--koji-accent);font-size:12px;font-weight:700;letter-spacing:.08em}.koji-room-title h2{margin:0;font-size:27px}.koji-step h3{font-size:22px;border-bottom:2px solid var(--koji-line);padding-bottom:10px}.koji-room-empty{margin:24px 0 0;padding:22px;text-align:center;border-radius:12px;background:#fff;color:#6d665f}@media(max-width:767px){.koji-room-tabs{grid-template-columns:1fr}.koji-room-tab{min-height:auto;padding:16px}.koji-room-panel{padding:20px 14px}.koji-room-title{display:block}.koji-room-title h2{margin-top:4px;font-size:23px}}