:root{--ink:#211d18;--muted:#6b6259;--muted-2:#8a8072;--cream:#faf6f0;--white:#fffdfa;--border:#e7dfd3;--border-dashed:#dcd3c4;--disabled-bg:#f5f1e9;--disabled-fg:#a69b8c;--teal:#1f5c4e;--teal-dark:#163f35;--teal-tint:#e5eeea;--terracotta:#e0714a;--terracotta-dark:#c25c39;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}*{box-sizing:border-box}body{color:var(--ink);background:var(--cream);margin:0;font-family:Karla,system-ui,-apple-system,Segoe UI,sans-serif}h1,h2,h3{letter-spacing:-.01em;font-family:Fraunces,Georgia,serif;font-weight:600}a{color:inherit}button{font:inherit}.app-shell{flex-direction:column;min-height:100vh;display:flex}.site-header{border-bottom:1px solid var(--border);background:var(--white);justify-content:space-between;align-items:center;padding:22px 48px;display:flex}.site-header .brand{letter-spacing:.01em;color:var(--teal);font-family:Fraunces,serif;font-size:22px;font-weight:700;text-decoration:none}.site-header nav{align-items:center;gap:32px;display:flex}.site-header nav a{color:var(--ink);font-size:14px;font-weight:600;text-decoration:none}.site-header nav a:hover{color:var(--teal)}.header-user{color:var(--muted);align-items:center;gap:14px;font-size:14px;display:flex}.link-button{color:var(--teal);cursor:pointer;background:0 0;border:none;padding:0;font-size:14px;font-weight:700}.btn-pill{cursor:pointer;border:none;border-radius:999px;justify-content:center;align-items:center;padding:11px 22px;font-family:Karla,sans-serif;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.btn-pill.primary{background:var(--teal);color:var(--white)}.btn-pill.primary:hover{background:var(--teal-dark)}.btn-pill.outline{border:1.5px solid var(--teal);color:var(--teal);background:0 0}.btn-pill.outline:hover{background:var(--teal);color:var(--white)}.page{width:100%;max-width:720px;margin:0 auto;padding:3rem 1.5rem}.hero{align-items:center;gap:64px;max-width:1280px;margin:0 auto;padding:72px 48px;display:flex}.hero-copy{flex-direction:column;flex:1 1 0;gap:24px;display:flex}.eyebrow{background:var(--teal-tint);color:var(--teal-dark);border-radius:999px;align-items:center;gap:8px;width:fit-content;padding:7px 14px;font-size:12px;font-weight:700;display:inline-flex}.hero-copy h1{margin:0;font-size:46px;line-height:1.1}.hero-copy h1 .accent{color:var(--teal)}.hero-copy p.lead{color:var(--muted);max-width:460px;margin:0;font-size:17px;line-height:1.6}.hero-cta{flex-wrap:wrap;gap:14px;margin-top:4px;display:flex}.hero-stats{align-items:center;gap:24px;margin-top:8px;display:flex}.hero-stat{flex-direction:column;display:flex}.hero-stat .num{color:var(--teal);font-family:Fraunces,serif;font-size:22px;font-weight:700}.hero-stat .label{color:var(--muted);font-size:12px}.hero-divider{background:var(--border);width:1px;height:32px}.hero-visual{flex:0 0 300px;justify-content:center;display:flex}.phone{background:var(--ink);border-radius:36px;width:260px;height:500px;padding:12px;box-shadow:0 32px 64px -20px #211d1859}.phone-screen{background:var(--white);border-radius:26px;flex-direction:column;width:100%;height:100%;display:flex;overflow:hidden}.phone-header{border-bottom:1px solid var(--border);padding:18px 18px 12px}.phone-header .tag{color:var(--muted);font-size:11px;font-weight:700}.phone-header .title{margin-top:3px;font-family:Fraunces,serif;font-size:16px;font-weight:600}.phone-body{flex-direction:column;flex:1;gap:12px;padding:16px 18px;display:flex}.phone-card{background:var(--teal-tint);border-radius:12px;padding:13px}.phone-card.alt{background:var(--white);border:1px solid var(--border)}.phone-card .en{color:var(--teal-dark);font-size:13px;font-weight:700}.phone-card .id{color:var(--muted);margin-top:3px;font-size:11px}.phone-card .q{font-size:13px;font-weight:700}.phone-choices{gap:6px;margin-top:8px;display:flex}.phone-choices span{border-radius:999px;padding:6px 12px;font-size:11px;font-weight:700}.phone-choices span.correct{background:var(--teal);color:var(--white)}.phone-choices span.neutral{color:var(--muted);background:#f1ece3}.phone-progress{background:var(--border);border-radius:999px;height:7px;margin-top:auto;overflow:hidden}.phone-progress>div{background:var(--terracotta);height:100%}.section{max-width:1280px;margin:0 auto;padding:72px 48px}.section-header{text-align:center;max-width:560px;margin:0 auto 44px}.section-header h2{margin:0 0 12px;font-size:32px}.section-header p{color:var(--muted);margin:0;font-size:16px;line-height:1.6}.feature-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;display:grid}.feature-card{border:1px solid var(--border);background:var(--white);border-radius:18px;padding:26px;transition:border-color .15s}.feature-card:hover{border-color:var(--teal)}.feature-icon{background:var(--teal-tint);border-radius:11px;justify-content:center;align-items:center;width:44px;height:44px;margin-bottom:16px;display:flex}.feature-card h3{margin:0 0 8px;font-size:17px}.feature-card p{color:var(--muted);margin:0;font-size:14px;line-height:1.6}.path-row{align-items:stretch;max-width:1000px;margin:0 auto;display:flex}.path-node{flex-direction:column;flex:1;align-items:center;gap:12px;padding:0 8px;display:flex}.path-circle{border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;font-family:Fraunces,serif;font-size:16px;font-weight:700;display:flex}.path-circle.active{background:var(--teal);color:var(--white)}.path-circle.soon{background:var(--disabled-bg);color:var(--disabled-fg)}.path-name{font-size:13px;font-weight:700}.path-name.soon{color:var(--disabled-fg)}.path-badge{border-radius:999px;padding:3px 10px;font-size:11px;font-weight:700}.path-badge.active{color:var(--teal-dark);background:var(--teal-tint)}.path-badge.soon{color:var(--disabled-fg);background:var(--disabled-bg)}.path-connector{flex:0 0 28px;align-self:center;height:2px;margin-bottom:30px}.path-connector.active{background:var(--teal)}.path-connector.soon{background:var(--border)}.cta-banner{background:var(--teal);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:32px;padding:64px 48px;display:flex}.cta-banner h2{color:var(--white);margin:0 0 10px;font-size:27px}.cta-banner p{color:#cfe0da;margin:0;font-size:15px}.cta-banner .btn-pill{background:var(--white);color:var(--teal);flex-shrink:0;padding:14px 26px}.cta-banner .btn-pill:hover{background:#f1ece3}.site-footer{background:var(--white);border-top:1px solid var(--border);color:var(--muted);justify-content:space-between;align-items:center;padding:32px 48px;font-size:13px;display:flex}.site-footer .brand{color:var(--teal);font-family:Fraunces,serif;font-size:16px;font-weight:700}.catalog-header{text-align:center;padding:56px 48px 32px}.catalog-header h1{margin:0 0 14px;font-size:36px}.catalog-header p{max-width:540px;color:var(--muted);margin:0 auto;font-size:16px;line-height:1.6}.language-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;max-width:1160px;margin:0 auto;padding:0 48px 40px;display:grid}.lang-card{border-radius:20px;flex-direction:column;gap:16px;padding:26px;display:flex}.lang-card.available{border:1.5px solid var(--teal);background:var(--white);transition:box-shadow .15s}.lang-card.available:hover{box-shadow:0 18px 36px -20px #1f5c4e4d}.lang-card.soon{border:1.5px dashed var(--border-dashed);background:var(--disabled-bg);opacity:.8}.lang-badge{border-radius:11px;justify-content:center;align-items:center;width:40px;height:40px;font-family:Fraunces,serif;font-size:14px;font-weight:700;display:flex}.lang-badge.available{background:var(--teal);color:var(--white)}.lang-badge.soon{background:var(--border);color:var(--disabled-fg)}.lang-card h3{margin:0 0 6px;font-size:19px}.lang-card p.desc{color:var(--muted);margin:0;font-size:13px;line-height:1.6}.lang-card p.desc.soon{color:var(--disabled-fg)}.lang-features{flex-direction:column;gap:7px;margin:0;padding:0;list-style:none;display:flex}.lang-features li{gap:8px;font-size:13px;display:flex}.lang-footer{border-top:1px solid var(--border);flex-direction:column;gap:12px;margin-top:auto;padding-top:14px;display:flex}.lang-price{font-family:Fraunces,serif;font-size:24px;font-weight:700}.lang-price-note{color:var(--muted);font-size:12px}.lang-footer button{border:none;border-radius:999px;width:100%;padding:12px 18px;font-family:Karla,sans-serif;font-size:14px;font-weight:700}.lang-footer button.buy{background:var(--teal);color:var(--white);cursor:pointer}.lang-footer button.buy:hover{background:var(--teal-dark)}.lang-footer button.disabled{background:var(--border);color:var(--disabled-fg);cursor:not-allowed}.notice{background:#fff4e5;border:1px solid #f0d9b5;border-radius:6px;margin:0 48px 1.5rem;padding:.75rem 1rem;font-size:.9rem}.notice-success{background:#e8f5e9;border-color:#b6dfba}.notice-error{background:#fdecea;border-color:#f3c2bd}.login-form{flex-direction:column;gap:.75rem;max-width:360px;display:flex}.login-form label{font-size:.9rem;font-weight:600}.login-form input{border:1px solid var(--border);border-radius:8px;padding:.65rem .85rem;font-family:Karla,sans-serif;font-size:1rem}.login-form button{background:var(--teal);color:#fff;cursor:pointer;border:none;border-radius:999px;margin-top:.5rem;padding:.7rem 1.5rem;font-family:Karla,sans-serif;font-weight:700}.login-form button:disabled{opacity:.6;cursor:not-allowed}.unit-shell{flex-direction:column;min-height:calc(100vh - 73px);display:flex}.unit-topbar{border-bottom:1px solid var(--border);background:var(--white);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;padding:18px 32px;display:flex}.unit-topbar-left{align-items:center;gap:16px;display:flex}.back-btn{background:#f1ece3;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;display:flex}.unit-topbar-tag{color:var(--teal);text-transform:uppercase;font-size:11px;font-weight:700}.unit-topbar-title{margin-top:2px;font-family:Fraunces,serif;font-size:16px;font-weight:600}.unit-progress{align-items:center;gap:12px;min-width:200px;display:flex}.unit-progress-bar{background:var(--border);border-radius:999px;flex:1;height:8px;overflow:hidden}.unit-progress-bar>div{background:var(--terracotta);height:100%}.unit-progress-label{color:var(--muted);white-space:nowrap;font-size:12px;font-weight:700}.unit-body{flex:1;min-height:0;display:flex}.unit-sidebar{border-right:1px solid var(--border);background:var(--white);flex-shrink:0;width:268px;padding:20px 16px;overflow-y:auto}.unit-sidebar-label{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px;padding-left:4px;font-size:11px;font-weight:700}.unit-tier-group{margin-bottom:18px}.unit-tier-name{color:var(--teal-dark);margin-bottom:4px;padding:4px;font-size:12px;font-weight:700}.unit-list-item{color:var(--ink);border-radius:10px;align-items:center;gap:10px;padding:10px;text-decoration:none;display:flex}.unit-list-item:hover{background:#f1ece3}.unit-list-item.current{background:var(--teal-tint)}.unit-list-item .n{background:var(--disabled-bg);width:26px;height:26px;color:var(--disabled-fg);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:700;display:flex}.unit-list-item.current .n{background:var(--teal);color:var(--white)}.unit-list-item .t{color:var(--muted);font-size:13px}.unit-list-item.current .t{color:var(--teal-dark);font-weight:700}.unit-main{flex:1;padding:28px 40px;overflow-y:auto}.unit-callout{background:var(--white);border:1px solid var(--border);border-radius:14px;align-items:flex-start;gap:14px;margin-bottom:24px;padding:18px 20px;display:flex}.unit-callout .label{margin-bottom:3px;font-size:13px;font-weight:700}.unit-callout .body{color:var(--muted);font-size:13px;line-height:1.6}.tabs{border-bottom:1px solid var(--border);flex-wrap:wrap;gap:6px;margin-bottom:28px;display:flex}.tab-btn{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:10px 10px 0 0;margin-bottom:-1px;padding:10px 18px;font-family:Karla,sans-serif;font-size:13px;font-weight:700}.tab-btn.active{background:var(--teal);color:var(--white)}.access-locked{text-align:center;background:var(--white);border:1px solid var(--border);border-radius:20px;max-width:480px;margin:60px auto;padding:40px 32px}.access-locked h2{margin:0 0 10px;font-size:22px}.access-locked p{color:var(--muted);margin:0 0 22px;font-size:14px;line-height:1.6}.vocab-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;display:grid}.vocab-card{border:1px solid var(--border);background:var(--white);border-radius:12px;padding:16px 18px}.vocab-card .en{font-size:15px;font-weight:700}.vocab-card .id{color:var(--muted);margin:4px 0 8px;font-size:13px}.vocab-card .ex{color:var(--muted-2);font-size:13px;font-style:italic}.grammar-card{border:1px solid var(--border);background:var(--white);border-radius:14px;margin-bottom:18px;padding:24px}.grammar-card h3{margin:0 0 10px;font-size:18px}.grammar-card .explanation{color:#4a4238;max-width:680px;margin:0 0 18px;font-size:14px;line-height:1.7}.grammar-table{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;display:grid}.grammar-table-cell{background:var(--teal-tint);border-radius:10px;padding:14px}.grammar-table-cell .k{color:var(--teal-dark);margin-bottom:4px;font-size:11px;font-weight:700}.grammar-table-cell .v{color:var(--teal);font-family:Fraunces,serif;font-size:18px;font-weight:700}.grammar-table-cell .ex{color:var(--muted);margin-top:4px;font-size:12px}.quiz-card{border:1px solid var(--border);background:var(--white);border-radius:14px;max-width:520px;margin-bottom:14px;padding:24px}.quiz-index{color:var(--muted);margin-bottom:10px;font-size:11px;font-weight:700}.quiz-question{margin:0 0 18px;font-size:17px}.quiz-options{flex-direction:column;gap:8px;display:flex}.quiz-opt{text-align:left;border:1.5px solid var(--border);background:var(--white);cursor:pointer;border-radius:10px;padding:12px 16px;font-family:Karla,sans-serif;font-size:14px;font-weight:600}.quiz-opt:hover{border-color:var(--teal)}.quiz-opt.picked{border-color:var(--teal);background:var(--teal-tint);color:var(--teal-dark)}.dialog-block{border:1px solid var(--border);background:var(--white);border-radius:14px;max-width:620px;margin-bottom:18px;padding:20px 24px}.dialog-line{gap:10px;margin-bottom:10px;font-size:14px;line-height:1.5;display:flex}.dialog-line .speaker{color:var(--teal-dark);flex-shrink:0;font-weight:700}.reading-text,.writing-prompt,.summary-text{border:1px solid var(--border);background:var(--white);border-radius:14px;max-width:680px;margin-bottom:18px;padding:22px 26px;font-size:14px;line-height:1.8}.checklist{flex-direction:column;gap:8px;max-width:640px;margin:12px 0 0;padding:0;list-style:none;display:flex}.checklist li{color:var(--muted);gap:10px;font-size:13px;display:flex}