:root{--bg: #ffffff;--bg-soft: #f3f8ef;--surface: #ffffff;--ink: #13242e;--muted: #5a6b75;--brand: #24690a;--brand-dark: #1a4e07;--accent: #efbf04;--accent-dark: #cda400;--danger: #d8593f;--ok: #24690a;--line: #e6eef3;--radius: 18px;--shadow: 0 8px 30px rgba(19, 36, 46, .07);--font: "Inter", "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55}a{color:var(--brand-dark)}.container{max-width:980px;margin:0 auto;padding:0 20px}.site-header{background:#ffffffd9;backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}.site-header a.brand{color:var(--ink);text-decoration:none;font-weight:700;font-size:1.05rem;display:flex;align-items:center;gap:9px;letter-spacing:-.01em}.site-header a.brand .icon{color:var(--brand)}.lang-switch{display:flex;gap:6px}.lang-switch button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;padding:5px 14px;cursor:pointer;font-weight:600;font-size:.85rem;transition:all .12s ease}.lang-switch button[aria-pressed=true]{background:var(--brand);border-color:var(--brand);color:#fff}.icon,.logo{display:inline-block;vertical-align:middle;flex-shrink:0}main{padding:32px 0 80px}h1{font-size:2rem;margin:0 0 8px}h2{font-size:1.4rem;margin:36px 0 14px}h3{font-size:1.1rem;margin:0 0 8px}.lead{color:var(--muted);font-size:1.05rem;margin-top:0}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.pill{display:inline-block;background:#24690a1f;color:var(--brand-dark);border-radius:999px;padding:3px 12px;font-size:.8rem;font-weight:600}.week-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-top:18px}.week-card{display:flex;flex-direction:column;gap:8px;text-decoration:none;color:inherit;transition:transform .12s ease,box-shadow .12s ease}.week-card:hover{transform:translateY(-3px);box-shadow:0 10px 26px #1f29331f}.week-card .week-no{font-size:.8rem;color:var(--muted);font-weight:600;letter-spacing:.04em;text-transform:uppercase}.week-card .week-title{font-weight:700;font-size:1.05rem}.goals{margin:0;padding-left:20px}.goals li{margin:4px 0}.vocab-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}.vocab-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-align:center}.thumb{aspect-ratio:4 / 3;width:100%;display:block}.vocab-item .word{padding:10px 8px 6px}.vocab-item .ck{font-size:1.15rem;font-weight:700;color:var(--brand-dark)}.vocab-item .support{font-size:.9rem;color:var(--muted)}.vocab-item .audio-btn{margin:0 auto 12px}.ck:empty:before{content:"— " attr(data-ph) " —";color:#b89c2e;font-weight:600;font-style:italic;font-size:.85em}.audio-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;cursor:pointer;font:inherit;font-size:.85rem;color:var(--brand-dark)}.audio-btn[disabled]{opacity:.45;cursor:not-allowed}.audio-btn:not([disabled]):hover{background:#24690a14}.exercise{margin-top:18px}.exercise>.card{padding:22px}.exercise .ex-instructions{color:var(--muted);margin:0 0 16px}.flashcard{perspective:1000px;max-width:340px;margin:0 auto}.flashcard .inner{position:relative;width:100%;aspect-ratio:4 / 3;transition:transform .5s;transform-style:preserve-3d;cursor:pointer}.flashcard.flipped .inner{transform:rotateY(180deg)}.flashcard .face{position:absolute;inset:0;backface-visibility:hidden;border-radius:var(--radius);border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:14px;overflow:hidden}.flashcard .face.back{transform:rotateY(180deg);background:var(--bg-soft)}.flashcard .face .ck{font-size:1.5rem;font-weight:800;color:var(--brand-dark)}.flashcard .face .support{font-size:1.3rem;font-weight:700}.flashcard-nav{display:flex;align-items:center;justify-content:center;gap:14px;margin-top:14px}.flashcard-nav .counter{color:var(--muted);font-size:.9rem;min-width:54px;text-align:center}button.btn{border:none;background:var(--brand);color:#fff;border-radius:999px;padding:8px 18px;font:inherit;font-weight:600;cursor:pointer}button.btn:hover{background:var(--brand-dark)}button.btn.ghost{background:#fff;color:var(--brand-dark);border:1px solid var(--line)}.match{display:grid;grid-template-columns:1fr 1fr;gap:12px}.match .col{display:flex;flex-direction:column;gap:10px}.match .tile{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;min-height:56px;text-align:center;font-weight:600}.match .tile img.thumb{aspect-ratio:4/3;width:100%;border-radius:8px}.match .tile.selected{outline:3px solid var(--accent)}.match .tile.matched{background:#24690a1f;border-color:var(--brand);color:var(--brand-dark);cursor:default}.match .tile.wrong{animation:shake .3s}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-6px)}75%{transform:translate(6px)}}.match-status{margin-top:12px;font-weight:600;color:var(--muted)}.lc-options{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin-top:14px}.lc-option{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px;cursor:pointer;text-align:center;font-weight:600}.lc-option.correct{background:#24690a26;border-color:var(--brand)}.lc-option.wrong{background:#c0563f1f;border-color:var(--danger)}.gap-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.gap-sentence{font-size:1.05rem}.gap-row input{font:inherit;padding:8px 12px;border:1px solid var(--line);border-radius:10px;max-width:260px}.gap-row .solution{color:var(--brand-dark);font-weight:700}.speak-item{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 0;border-bottom:1px dashed var(--line)}.speak-item:last-child{border-bottom:none}.speak-item .ck{font-size:1.2rem;font-weight:700;color:var(--brand-dark);min-width:120px}.speak-item .support{color:var(--muted);min-width:120px}.prompt-box{background:linear-gradient(180deg,#fff,var(--bg-soft));border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:var(--radius);padding:18px 20px}.prompt-text{margin:0;font-size:1.05rem}.note{color:var(--muted);font-size:.9rem}.empty-hint{color:#b89c2e;font-style:italic}footer.site-footer{border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;padding:24px 0;text-align:center}@media(max-width:560px){.match{grid-template-columns:1fr}}.eyebrow{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-weight:700;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase}.hero{padding:18px 0 6px}.hero h1{font-size:2.5rem;line-height:1.1;letter-spacing:-.02em;margin:14px 0 10px}.hero h1 .accent{color:var(--brand)}.hero .lead{max-width:620px}.track-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px;margin-top:30px}.track-card{position:relative;display:flex;flex-direction:column;gap:14px;padding:26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:inherit;transition:transform .14s ease,box-shadow .14s ease,border-color .14s ease}a.track-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px #13242e1a;border-color:var(--brand)}.track-card.is-soon{opacity:.92}.track-icon{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:#24690a1f;color:var(--brand)}.track-card.accent-gold .track-icon{background:#efbf0429;color:var(--accent-dark)}.track-card h3{font-size:1.25rem;margin:0;letter-spacing:-.01em}.track-meta{display:flex;flex-wrap:wrap;gap:8px}.tag{display:inline-flex;align-items:center;gap:5px;font-size:.78rem;font-weight:600;color:var(--muted);background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:4px 10px}.track-card .desc{color:var(--muted);margin:0;font-size:.95rem;flex-grow:1}.track-cta{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--brand);margin-top:2px}.track-card.accent-gold .track-cta{color:var(--accent-dark)}.track-cta .icon{transition:transform .14s ease}a.track-card:hover .track-cta .icon{transform:translate(4px)}.badge-soon{position:absolute;top:18px;right:18px;font-size:.72rem;font-weight:700;letter-spacing:.03em;color:var(--accent-dark);background:#efbf0429;border-radius:999px;padding:4px 11px}.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--muted);text-decoration:none;font-weight:600;font-size:.9rem}.back-link:hover{color:var(--brand)}.empty-state{text-align:center;padding:50px 24px;background:var(--bg-soft);border:1px dashed var(--line);border-radius:var(--radius);color:var(--muted)}.empty-state .icon{color:var(--accent-dark);margin-bottom:10px}.audio-btn .icon{color:var(--brand)}.audio-btn[disabled] .icon{color:var(--muted)}.audio-btn.recording{color:var(--danger);border-color:var(--danger)}.audio-btn.recording .icon{color:var(--danger)}@media(max-width:560px){.hero h1{font-size:2rem}}