:root{color-scheme:light;--ink: #19212a;--muted: #5e6b78;--line: #dce3e8;--paper: #f7f8f5;--surface: #ffffff;--surface-strong: #eef4f1;--teal: #1d6f6d;--teal-dark: #155552;--coral: #c6533f;--gold: #b98520;--blue: #315f9d;--shadow: 0 18px 50px rgba(32, 43, 54, .12)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,textarea,input{font:inherit}button{cursor:pointer}.app-shell{display:grid;grid-template-columns:minmax(280px,360px) minmax(0,1fr);min-height:100vh}.course-sidebar{position:sticky;top:0;height:100vh;overflow:auto;padding:24px;background:#10191d;color:#f7fbfb;border-right:1px solid rgba(255,255,255,.08)}.brand-block{display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:center;margin-bottom:22px}.brand-art{width:72px;height:72px;border-radius:8px;background:#dfeee9}.brand-block h1,.topbar h2,.lesson-hero h2,.section-heading h3,.certificate h2{margin:0;letter-spacing:0}.brand-block h1{font-size:1.35rem;line-height:1.1}.eyebrow{margin:0 0 6px;color:var(--coral);font-size:.76rem;font-weight:800;letter-spacing:0;text-transform:uppercase}.course-sidebar .eyebrow{color:#f3b48b}.progress-card{display:grid;grid-template-columns:78px 1fr;gap:14px;align-items:center;padding:16px;margin-bottom:18px;border:1px solid rgba(255,255,255,.12);background:#ffffff0f;border-radius:8px}.progress-card p{margin:5px 0 0;color:#bfd1d0;font-size:.9rem;line-height:1.35}.progress-ring{display:grid;place-items:center;width:72px;height:72px;border-radius:50%;background:conic-gradient(var(--coral) 0deg,rgba(255,255,255,.13) 0deg)}.progress-ring span{display:grid;place-items:center;width:54px;height:54px;border-radius:50%;background:#10191d;color:#fff;font-weight:800}.lesson-list{display:grid;gap:8px}.lesson-link{width:100%;display:grid;grid-template-columns:30px 1fr 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a{color:var(--teal-dark);font-weight:700}.topbar-actions{display:flex;gap:10px;align-items:center}.primary-button,.secondary-button,.icon-button{min-height:42px;border-radius:8px;border:1px solid transparent;transition:transform .15s ease,background .15s ease,border .15s ease}.primary-button{padding:0 18px;background:var(--teal);color:#fff;font-weight:800}.secondary-button{padding:0 18px;background:var(--surface);color:var(--ink);border-color:var(--line);font-weight:800}.icon-button{display:grid;place-items:center;width:42px;background:var(--surface);border-color:var(--line)}.icon-button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-linecap:round;stroke-linejoin:round;stroke-width:2}.primary-button:hover,.secondary-button:hover,.icon-button:hover{transform:translateY(-1px)}.primary-button:disabled,.secondary-button:disabled,.icon-button:disabled{opacity:.6;cursor:not-allowed}.primary-button:disabled:hover,.secondary-button:disabled:hover,.icon-button:disabled:hover{transform:none}.lesson-hero{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,.8fr);gap:18px;align-items:stretch;margin-bottom:18px}.hero-copy,.hero-panel,.tab-panel,.certificate{border:1px solid var(--line);background:var(--surface);border-radius:8px;box-shadow:var(--shadow)}.hero-copy{padding:clamp(22px,4vw,40px);background:linear-gradient(135deg,#1d6f6df0,#315f9de0),url("data:image/svg+xml,%3csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20640%20420'%20role='img'%20aria-labelledby='title%20desc'%3e%3ctitle%20id='title'%3eIlustrasi%20perjalanan%20belajar%3c/title%3e%3cdesc%20id='desc'%3eBuku%20terbuka,%20jalur%20pembelajaran,%20dan%20cahaya%20sebagai%20simbol%20kelas%20peneguhan.%3c/desc%3e%3cdefs%3e%3clinearGradient%20id='sky'%20x1='0'%20x2='1'%20y1='0'%20y2='1'%3e%3cstop%20offset='0'%20stop-color='%23eaf5ef'/%3e%3cstop%20offset='0.55'%20stop-color='%23d6e9e7'/%3e%3cstop%20offset='1'%20stop-color='%23f5e8d2'/%3e%3c/linearGradient%3e%3clinearGradient%20id='page'%20x1='0'%20x2='1'%3e%3cstop%20offset='0'%20stop-color='%23fffdf5'/%3e%3cstop%20offset='1'%20stop-color='%23edf7f2'/%3e%3c/linearGradient%3e%3c/defs%3e%3crect%20width='640'%20height='420'%20fill='url(%23sky)'/%3e%3ccircle%20cx='520'%20cy='84'%20r='46'%20fill='%23d99a4d'%20opacity='.9'/%3e%3cpath%20d='M0%20320c92-30%20142-24%20225%200s161%2027%20244-4%20123-44%20171-23v127H0z'%20fill='%231d6f6d'%20opacity='.18'/%3e%3cpath%20d='M44%20352c92-36%20168-40%20268-12s196%2014%20284-28'%20fill='none'%20stroke='%23315f9d'%20stroke-width='10'%20stroke-linecap='round'%20opacity='.42'/%3e%3cpath%20d='M138%20122c68-25%20125-17%20172%2022v176c-49-34-103-42-172-20z'%20fill='url(%23page)'%20stroke='%23155552'%20stroke-width='5'/%3e%3cpath%20d='M310%20144c48-39%20105-47%20172-22v178c-69-22-123-14-172%2020z'%20fill='url(%23page)'%20stroke='%23155552'%20stroke-width='5'/%3e%3cpath%20d='M310%20144v176'%20stroke='%23155552'%20stroke-width='5'/%3e%3cpath%20d='M170%20176c34-8%2068-4%20101%2012M170%20216c39-10%2075-6%20108%2012M170%20256c32-8%2063-5%2094%209'%20stroke='%23c6533f'%20stroke-width='8'%20stroke-linecap='round'%20opacity='.75'/%3e%3cpath%20d='M350%20182c33-14%2065-17%2096-8M350%20222c36-14%2072-17%20108-7M350%20262c29-11%2059-13%2089-6'%20stroke='%23315f9d'%20stroke-width='8'%20stroke-linecap='round'%20opacity='.68'/%3e%3cg%20fill='%23fff'%20stroke='%23155552'%20stroke-width='5'%3e%3ccircle%20cx='134'%20cy='86'%20r='18'/%3e%3ccircle%20cx='506'%20cy='214'%20r='18'/%3e%3ccircle%20cx='444'%20cy='334'%20r='18'/%3e%3c/g%3e%3cpath%20d='M134%20104c14%2038%2050%2054%2091%2060M506%20232c-12%2038-34%2064-66%2078'%20fill='none'%20stroke='%23c6533f'%20stroke-width='6'%20stroke-linecap='round'%20stroke-dasharray='10%2014'/%3e%3c/svg%3e");background-size:cover;color:#fff}.hero-copy .eyebrow,.lesson-meta{color:#ffd7bd}.lesson-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;font-size:.86rem;font-weight:800}.lesson-meta span{padding:6px 8px;border:1px solid rgba(255,255,255,.25);border-radius:999px;background:#ffffff1a}.lesson-hero h2{max-width:860px;font-size:clamp(2rem,4vw,4.2rem);line-height:.98}.lesson-hero p{margin:16px 0 0;max-width:780px;font-size:1.04rem;line-height:1.6}.hero-panel{padding:24px;display:flex;flex-direction:column;justify-content:center}.hero-panel span{color:var(--muted);font-weight:800;text-transform:uppercase;font-size:.78rem}.hero-panel strong{display:block;margin-top:10px;font-size:1.55rem;line-height:1.2}.tabs{display:flex;gap:8px;margin:18px 0;overflow:auto}.tab{min-width:110px;min-height:42px;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--muted);font-weight:800}.tab.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}.tab-panel{display:none;padding:clamp(18px,3vw,28px);margin-bottom:18px}.tab-panel.is-active{display:block}.section-heading{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:16px}.section-heading h3{font-size:1.5rem}.outcome-grid,.practice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:18px}.outcome-card,.practice-card,.content-card,.prompt-card,.journal-box,.question-card{border:1px solid var(--line);border-radius:8px;background:#fff}.outcome-card,.practice-card{padding:16px}.outcome-card strong,.practice-card strong{display:block;margin-bottom:8px}.outcome-card p,.practice-card p,.content-card p,.prompt-card li{color:var(--muted);line-height:1.58}.content-stack{display:grid;gap:12px}.content-card{padding:18px}.content-card h4,.prompt-card h4{margin:0 0 8px;font-size:1.08rem}.content-card ul,.prompt-card ul{margin:10px 0 0;padding-left:20px}.content-card li{margin:8px 0;color:var(--muted);line-height:1.55}.quiz-form{display:grid;gap:14px}.question-card{padding:18px}.question-card fieldset{margin:0;padding:0;border:0}.question-card legend{margin-bottom:12px;font-weight:800}.option-row{display:grid;grid-template-columns:22px 1fr;gap:10px;align-items:start;padding:10px;border-radius:8px}.option-row:hover{background:var(--surface-strong)}.quiz-actions{justify-content:flex-start;margin-top:16px}.result-box{display:none;margin-top:16px;padding:16px;border-radius:8px;background:var(--surface-strong);border:1px solid #c4d9d1;color:var(--teal-dark);line-height:1.55}.result-box.is-visible{display:block}.journal-layout{display:grid;grid-template-columns:minmax(240px,.8fr) minmax(0,1.2fr);gap:16px}.prompt-card,.journal-box{padding:18px}.journal-box{display:grid;gap:10px}.journal-title{display:flex;justify-content:space-between;gap:12px;align-items:center}.journal-title span{font-weight:800}.journal-title small{color:var(--muted);font-size:.82rem;font-weight:700}.journal-box textarea{width:100%;resize:vertical;min-height:260px;padding:14px;border:1px solid var(--line);border-radius:8px;line-height:1.55}.lesson-nav{padding-bottom:6px}.certificate-dialog{width:min(720px,calc(100vw - 28px));border:0;padding:0;background:transparent}.certificate-dialog::backdrop{background:#0810148c}.certificate{position:relative;padding:clamp(28px,5vw,54px);text-align:center}.close-button{position:absolute;top:14px;right:14px}.certificate h2{font-size:clamp(2rem,5vw,4rem);color:var(--teal-dark)}.certificate-name{margin:12px 0 0;font-size:1.35rem;font-weight:800}.certificate-award-label{margin:18px 0 6px;color:var(--muted);font-weight:700}.certificate-learner-name{margin:0;font-size:clamp(1.4rem,3.2vw,2rem);font-weight:900;color:var(--ink)}.certificate-editor{margin-top:18px;padding:14px;border:1px solid var(--line);border-radius:8px;background:#fbfcfb;text-align:left}.certificate-editor label{display:block;margin-bottom:8px;font-weight:700;color:var(--ink)}.certificate-editor-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px}.certificate-editor input{min-height:42px;padding:0 12px;border:1px solid var(--line);border-radius:8px}.certificate-editor small{display:block;margin-top:8px;color:var(--muted)}.certificate-editor input:disabled,.certificate-editor .secondary-button:disabled{opacity:.65;cursor:not-allowed}.certificate-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px}.certificate-stats span{padding:8px 10px;border-radius:999px;background:var(--surface-strong);color:var(--teal-dark);font-weight:800}@media (max-width: 980px){.app-shell{grid-template-columns:1fr}.course-sidebar{position:relative;height:auto}.lesson-list{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-hero,.journal-layout{grid-template-columns:1fr}}@media (max-width: 680px){.course-main,.course-sidebar{padding:16px}.topbar,.lesson-nav,.quiz-actions{align-items:stretch;flex-direction:column}.topbar-actions{width:100%}.topbar-actions .primary-button{flex:1}.lesson-list,.outcome-grid,.practice-grid{grid-template-columns:1fr}.lesson-hero h2{font-size:2.2rem}.certificate-editor-row{grid-template-columns:1fr}}