:root{--paper:#f6f1e7;--paper-2:#efe7d7;--card:#fbf8f1;--ink:#1c1a16;--ink-mid:#5c564a;--read:#bf4528;--listen:#2c5460;--speak:#b0822f;--write:#6a4a6b;--green:#3f6b43;--accent:#bf4528;--accent-press:#9e3a22;--line:#1c1a1621;--line-soft:#1c1a1612;--shadow:0 1px 2px #1c1a160f, 0 8px 24px -12px #1c1a1638;--shadow-lg:0 2px 6px #1c1a1614, 0 30px 60px -24px #1c1a1657;--r:14px;--r-sm:9px;--r-lg:22px;--font-display:"Fraunces",serif;--font-read:"Spectral",serif;--font-ui:"Archivo",sans-serif}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--paper);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;background-image:radial-gradient(1200px 700px at 88% -8%,#bf452812,#0000 60%),radial-gradient(900px 600px at -6% 108%,#2c546014,#0000 55%);overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:1;opacity:.5;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");position:fixed;inset:0}a{color:inherit;text-decoration:none}button{font-family:var(--font-ui);cursor:pointer;color:inherit;background:0 0;border:none}::selection{background:#bf452838}.app-shell{z-index:2;min-height:100vh;display:flex;position:relative}.shell-sidebar{border-right:1px solid var(--line);background:var(--card);flex-direction:column;flex-shrink:0;gap:0;width:240px;height:100vh;padding:24px 16px;display:flex;position:sticky;top:0;overflow:hidden}.shell-brand{border-bottom:1px solid var(--line-soft);align-items:center;gap:12px;margin-bottom:20px;padding-bottom:28px;display:flex}.shell-mark{background:var(--ink);width:38px;height:38px;color:var(--paper);font-family:var(--font-display);box-shadow:var(--shadow);border-radius:11px;flex-shrink:0;place-items:center;font-size:20px;font-style:italic;display:grid;transform:rotate(-4deg)}.shell-brand-text strong{font-family:var(--font-display);letter-spacing:-.01em;font-size:18px;font-weight:600;display:block}.shell-brand-text small{letter-spacing:.2em;text-transform:uppercase;color:var(--ink-mid);margin-top:2px;font-size:10px;font-weight:600;display:block}.shell-sidenav{flex-direction:column;flex:1;gap:4px;display:flex}.shell-navitem{color:var(--ink-mid);cursor:pointer;border-radius:10px;align-items:center;gap:10px;padding:10px 12px;font-size:14px;font-weight:600;text-decoration:none;transition:background .15s,color .15s;display:flex}.shell-navitem:hover{background:var(--paper-2);color:var(--ink)}.shell-navitem--active{background:var(--ink)!important;color:var(--paper)!important}.shell-navitem--locked{opacity:.45;cursor:default}.shell-navitem-icon{font-size:16px}.shell-lock-badge{letter-spacing:.06em;text-transform:uppercase;background:var(--paper-2);color:var(--ink-mid);border:1px solid var(--line-soft);border-radius:999px;margin-left:auto;padding:2px 7px;font-size:10px;font-weight:800}.shell-user{border-top:1px solid var(--line-soft);align-items:center;gap:10px;padding-top:20px;display:flex}.shell-av{background:linear-gradient(135deg, var(--listen), #3d7180);color:#fff;width:36px;height:36px;box-shadow:var(--shadow);border-radius:50%;flex-shrink:0;place-items:center;font-size:13px;font-weight:800;display:grid}.shell-user-info{overflow:hidden}.shell-user-name{white-space:nowrap;text-overflow:ellipsis;color:var(--ink);font-size:13px;font-weight:700;display:block;overflow:hidden}.shell-logout{color:var(--ink-mid);cursor:pointer;background:0 0;border:none;padding:0;font-size:12px;font-weight:600;text-decoration:underline}.shell-logout:hover{color:var(--accent)}.shell-content{flex:1;min-width:0;padding:32px clamp(20px,4vw,48px) 100px}.shell-bottomnav{z-index:50;background:var(--card);border-top:1px solid var(--line);padding:8px 0 calc(8px + env(safe-area-inset-bottom));flex-direction:row;justify-content:space-around;align-items:stretch;display:none;position:fixed;bottom:0;left:0;right:0}.shell-tab{color:var(--ink-mid);border-radius:8px;flex-direction:column;flex:1;align-items:center;gap:3px;padding:4px 8px;font-size:11px;font-weight:700;text-decoration:none;transition:color .15s;display:flex}.shell-tab:hover{color:var(--ink)}.shell-tab--active{color:var(--accent)}.shell-tab--locked{opacity:.4;cursor:default}.shell-tab-icon{font-size:20px}.shell-tab-label{font-size:10.5px;font-weight:700}@media (width<=768px){.shell-sidebar{display:none}.shell-bottomnav{display:flex}.shell-content{padding:20px 16px 90px}}.content-card{border-radius:var(--r);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);cursor:pointer;flex-direction:column;min-height:200px;padding:22px 22px 18px 26px;transition:transform .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden}.content-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.content-card:before{content:"";background:var(--card-border,var(--accent));opacity:.85;width:5px;position:absolute;top:0;bottom:0;left:0}.cc-meta{gap:7px;margin-bottom:12px;display:flex}.cc-pill{letter-spacing:.03em;background:var(--paper-2);color:var(--ink-mid);border:1px solid var(--line-soft);border-radius:999px;align-items:center;padding:5px 11px;font-size:11.5px;font-weight:800;display:inline-flex}.cc-pill--level{color:var(--listen);background:#2c54601a}.cc-pill--accent{color:var(--accent);background:#bf45281a}.cc-title{font-family:var(--font-display);letter-spacing:-.005em;margin:0 0 8px;font-size:21px;font-weight:600;line-height:1.12}.cc-body{font-family:var(--font-read);color:var(--ink-mid);flex:1;margin:0;font-size:14px;line-height:1.5}.cc-skills{gap:6px;margin-top:16px;display:flex}.cc-dot{background:var(--paper-2);width:26px;height:26px;color:var(--ink-mid);border:1px solid var(--line-soft);-webkit-user-select:none;user-select:none;border-radius:8px;place-items:center;font-size:11px;font-weight:800;display:grid}.cc-dot--r{border-color:#bf45284d}.cc-dot--l{border-color:#2c54604d}.cc-dot--s{border-color:#b0822f4d}.cc-dot--w{border-color:#6a4a6b4d}.library-screen{max-width:1160px}.library-head{margin-bottom:28px}.library-kicker{letter-spacing:.26em;text-transform:uppercase;color:var(--accent);margin-bottom:6px;font-size:11px;font-weight:800}.library-title{font-family:var(--font-display);letter-spacing:-.01em;margin:.18em 0 .1em;font-size:clamp(28px,5vw,44px);font-weight:600;line-height:1.04}.library-lead{font-family:var(--font-read);color:var(--ink-mid);max-width:62ch;margin:0;font-size:17px;line-height:1.5}.library-toolbar{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:24px;display:flex}.library-chips{flex-wrap:wrap;gap:7px;display:flex}.library-chips--right{margin-left:auto}.library-lang{align-items:center;gap:8px;display:inline-flex}.library-lang-label{font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.05em;color:var(--ink-mid);font-size:11px;font-weight:700}.library-lang-select{font-family:var(--font-ui);color:var(--ink);border:1.5px solid var(--line);background:var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' fill='none' stroke='%235C564A' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 12px center;appearance:none;cursor:pointer;border-radius:999px;padding:8px 30px 8px 14px;font-size:14px;font-weight:600}.library-lang-select:hover{border-color:var(--ink)}.library-lang-select:focus{border-color:var(--accent);outline:none}.library-chip{border:1.5px solid var(--line);background:var(--card);color:var(--ink-mid);cursor:pointer;border-radius:999px;padding:8px 14px;font-size:13px;font-weight:600;transition:background .14s,color .14s,border-color .14s}.library-chip:hover{border-color:var(--ink);color:var(--ink)}.library-chip--on{background:var(--ink);color:var(--paper);border-color:var(--ink)}.library-chip--accent{color:var(--accent);cursor:default;background:#bf45281a;border-color:#bf45284d}.library-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;display:grid}.library-gen-card{text-align:center;border:1.6px dashed var(--line);background:linear-gradient(180deg, var(--card), var(--paper-2));cursor:pointer;border-radius:var(--r);flex-direction:column;justify-content:center;align-items:center;gap:10px;min-height:200px;padding:24px;transition:border-color .18s,transform .18s;display:flex}.library-gen-card:hover{border-color:var(--accent);transform:translateY(-4px)}.library-gen-spark{background:var(--accent);color:#fff;width:46px;height:46px;box-shadow:var(--shadow);border-radius:13px;place-items:center;font-size:22px;display:grid;transform:rotate(-4deg)}.library-gen-title{font-family:var(--font-display);font-size:19px;font-weight:600}.library-gen-sub{color:var(--ink-mid);max-width:24ch;font-size:13px;line-height:1.4}.library-loading{color:var(--ink-mid);flex-direction:column;align-items:center;gap:14px;padding:60px 0;font-size:14px;font-weight:600;display:flex}@keyframes spin{to{transform:rotate(360deg)}}.library-spinner{border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite spin}.gen-screen{max-width:680px}.gen-head{margin-bottom:32px}.gen-kicker{letter-spacing:.26em;text-transform:uppercase;color:var(--accent);align-items:center;gap:9px;margin-bottom:8px;font-size:11px;font-weight:800;display:flex}.gen-spark{background:var(--accent);color:#fff;border-radius:8px;flex-shrink:0;place-items:center;width:26px;height:26px;font-size:13px;display:grid;transform:rotate(-4deg)}.gen-title{font-family:var(--font-display);letter-spacing:-.01em;margin:.1em 0 .22em;font-size:clamp(28px,5vw,42px);font-weight:600;line-height:1.06}.gen-lead{font-family:var(--font-read);color:var(--ink-mid);max-width:58ch;margin:0;font-size:16px;line-height:1.55}.gen-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);overflow:hidden}.gen-card-inner{flex-direction:column;gap:22px;padding:32px 32px 24px;display:flex}.gen-field{flex-direction:column;gap:8px;display:flex}.gen-label{letter-spacing:.12em;text-transform:uppercase;color:var(--ink-mid);font-size:12px;font-weight:800}.gen-optional{letter-spacing:0;text-transform:none;opacity:.7;font-size:11px;font-weight:600}.gen-select-wrap{position:relative}.gen-select-wrap:after{content:"▾";color:var(--ink-mid);pointer-events:none;font-size:12px;position:absolute;top:50%;right:14px;transform:translateY(-50%)}.gen-select{border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--paper);width:100%;font-family:var(--font-ui);color:var(--ink);appearance:none;cursor:pointer;padding:12px 36px 12px 14px;font-size:15px;font-weight:600;transition:border-color .15s}.gen-select:hover{border-color:var(--ink-mid)}.gen-select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #bf45281f}.gen-select:disabled{opacity:.55;cursor:default}.gen-levels{flex-wrap:wrap;gap:8px;display:flex}.gen-level-btn{border-radius:var(--r-sm);border:1.5px solid var(--line);background:var(--paper);font-family:var(--font-ui);color:var(--ink-mid);cursor:pointer;letter-spacing:.04em;padding:9px 16px;font-size:14px;font-weight:700;transition:background .14s,color .14s,border-color .14s,transform .1s}.gen-level-btn:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px)}.gen-level-btn--on{background:var(--ink);color:var(--paper);border-color:var(--ink);box-shadow:var(--shadow)}.gen-level-btn:disabled{opacity:.5;cursor:default;transform:none}.gen-input{border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--paper);width:100%;font-family:var(--font-ui);color:var(--ink);padding:12px 14px;font-size:15px;font-weight:500;transition:border-color .15s}.gen-input::placeholder{color:var(--ink-mid);opacity:.6}.gen-input:hover{border-color:var(--ink-mid)}.gen-input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #bf45281f}.gen-input:disabled{opacity:.55}.gen-error{border-radius:var(--r-sm);color:var(--accent);background:#bf452817;border:1px solid #bf452840;padding:12px 14px;font-size:14px;font-weight:600;line-height:1.4}.gen-btn{border-radius:var(--r-sm);background:var(--accent);color:#fff;width:100%;font-family:var(--font-ui);letter-spacing:.02em;cursor:pointer;border:none;padding:16px 24px;font-size:15px;font-weight:800;transition:background .14s,transform .12s,box-shadow .14s;box-shadow:0 2px 8px #bf452847,0 1px 2px #bf452826}.gen-btn:hover:not(:disabled){background:var(--accent-press);transform:translateY(-2px);box-shadow:0 6px 18px #bf452857}.gen-btn:active:not(:disabled){transform:translateY(0)}.gen-btn:disabled{opacity:.7;cursor:default;transform:none}.gen-btn--busy{background:var(--accent-press)}.gen-btn-inner{justify-content:center;align-items:center;gap:9px;display:flex}.gen-btn-spark{opacity:.9;font-size:16px}.gen-spinner{border:2.5px solid #ffffff59;border-top-color:#fff;border-radius:50%;flex-shrink:0;width:16px;height:16px;animation:.7s linear infinite spin}.gen-progress-hint{text-align:center;color:var(--ink-mid);font-size:13px;font-style:italic;font-family:var(--font-read);margin:0}.gen-info-strip{background:var(--paper-2);border-top:1px solid var(--line-soft);flex-wrap:wrap;align-items:center;gap:14px;padding:14px 32px;display:flex}.gen-info-item{color:var(--ink-mid);letter-spacing:.04em;align-items:center;gap:6px;font-size:12px;font-weight:700;display:flex}.gen-info-dot{border-radius:3px;width:10px;height:10px}.gen-info-dot--r{background:var(--read)}.gen-info-dot--l{background:var(--listen)}.gen-info-dot--s{background:var(--speak)}.gen-info-dot--w{background:var(--write)}.gen-info-sep{flex:1}.gen-badge{color:var(--accent);letter-spacing:.02em;white-space:nowrap;background:#bf45281a;border:1px solid #bf452838;border-radius:999px;padding:5px 11px;font-size:11.5px;font-weight:800}@media (width<=640px){.gen-card-inner{padding:24px 20px 20px}.gen-info-strip{gap:10px;padding:12px 20px}}.upgrade-overlay{z-index:200;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.upgrade-backdrop{-webkit-backdrop-filter:blur(4px);background:#1c1a168c;position:absolute;inset:0}.upgrade-panel{z-index:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);flex-direction:column;gap:16px;width:100%;max-width:480px;padding:36px 36px 32px;animation:.22s cubic-bezier(.2,.8,.4,1) dialog-in;display:flex;position:relative;box-shadow:0 8px 40px #1c1a163d,0 2px 8px #1c1a161f}@keyframes dialog-in{0%{opacity:0;transform:translateY(18px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.upgrade-icon{background:var(--accent);color:#fff;width:52px;height:52px;box-shadow:var(--shadow);border-radius:15px;place-items:center;margin-bottom:4px;font-size:24px;display:grid;transform:rotate(-4deg)}.upgrade-title{font-family:var(--font-display);letter-spacing:-.01em;margin:0;font-size:26px;font-weight:600;line-height:1.08}.upgrade-body{font-family:var(--font-read);color:var(--ink-mid);margin:0;font-size:15px;line-height:1.55}.upgrade-body strong{color:var(--ink)}.upgrade-perks{flex-direction:column;gap:10px;margin:4px 0 0;padding:0;list-style:none;display:flex}.upgrade-perks li{color:var(--ink-mid);align-items:flex-start;gap:10px;font-size:14px;font-weight:600;line-height:1.4;display:flex}.upgrade-check{width:20px;height:20px;color:var(--green);background:#3f6b4326;border-radius:6px;flex-shrink:0;place-items:center;margin-top:1px;font-size:12px;font-weight:900;display:grid}.upgrade-err{border-radius:var(--r-sm);color:var(--accent);background:#bf452817;border:1px solid #bf452840;margin:0;padding:10px 12px;font-size:13.5px;font-weight:600}.upgrade-actions{flex-direction:column;gap:10px;margin-top:4px;display:flex}.upgrade-cta{border-radius:var(--r-sm);background:var(--accent);color:#fff;width:100%;font-family:var(--font-ui);letter-spacing:.02em;cursor:pointer;border:none;padding:15px 24px;font-size:15px;font-weight:800;transition:background .14s,transform .12s,box-shadow .14s;box-shadow:0 2px 8px #bf452847}.upgrade-cta:hover:not(:disabled){background:var(--accent-press);transform:translateY(-1px)}.upgrade-cta:disabled{opacity:.7;cursor:default}.upgrade-cta--busy{background:var(--accent-press)}.upgrade-dismiss{border-radius:var(--r-sm);border:1.5px solid var(--line);width:100%;font-family:var(--font-ui);color:var(--ink-mid);cursor:pointer;background:0 0;padding:11px 24px;font-size:14px;font-weight:700;transition:border-color .14s,color .14s}.upgrade-dismiss:hover{border-color:var(--ink);color:var(--ink)}@media (width<=540px){.upgrade-panel{padding:28px 22px 24px}.upgrade-title{font-size:22px}}.skill-wheel{flex-shrink:0;width:240px;height:240px;margin:6px auto 10px;position:relative}.skill-wheel__center{text-align:center;pointer-events:none;place-items:center;display:grid;position:absolute;inset:0}.skill-wheel__center b{font-family:var(--font-display);color:var(--ink);font-size:34px;font-weight:600;line-height:1;display:block}.skill-wheel__center span{letter-spacing:.16em;text-transform:uppercase;color:var(--ink-mid);margin-top:3px;font-size:11px;font-weight:800;display:block}.skill-card{border-radius:var(--r);background:var(--card);border:1.5px solid var(--line);box-shadow:var(--shadow);color:var(--ink);flex-direction:column;padding:20px;text-decoration:none;transition:transform .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden}.skill-card:not(.skill-card--locked){cursor:pointer}.skill-card:not(.skill-card--locked):hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}.skill-card:before{content:"";width:5px;position:absolute;top:0;bottom:0;left:0}.skill-card--r:before{background:var(--read)}.skill-card--l:before{background:var(--listen)}.skill-card--s:before{background:var(--speak)}.skill-card--w:before{background:var(--write)}.skill-card--locked{opacity:.6;cursor:default}.skill-card__phase2{letter-spacing:.08em;text-transform:uppercase;background:var(--paper-2);color:var(--ink-mid);border:1px solid var(--line);border-radius:999px;padding:3px 8px;font-size:10px;font-weight:800;position:absolute;top:12px;right:12px}.skill-card__icon{font-size:26px}.skill-card__title{font-family:var(--font-display);margin:8px 0 2px;font-size:20px;font-weight:600}.skill-card__desc{color:var(--ink-mid);flex:1;margin:0 0 12px;font-size:13px;line-height:1.4}.skill-card__footer{justify-content:space-between;align-items:center;margin-bottom:8px;font-size:12.5px;font-weight:800;display:flex}.skill-card__done{color:var(--green)}.skill-card__todo{color:var(--accent)}.skill-card__todo--locked{color:var(--ink-mid)}.skill-card__score{font-family:var(--font-display);font-size:16px}.skill-card__score--r{color:var(--read)}.skill-card__score--l{color:var(--listen)}.skill-card__score--s{color:var(--speak)}.skill-card__score--w{color:var(--write)}.skill-card--locked .skill-card__score{color:var(--ink-mid)}.skill-card__bar{background:var(--paper-2);border-radius:4px;height:4px;overflow:hidden}.skill-card__bar-fill{border-radius:4px;height:100%;transition:width .7s cubic-bezier(.4,0,.2,1);display:block}.skill-card__bar-fill--r{background:var(--read)}.skill-card__bar-fill--l{background:var(--listen)}.skill-card__bar-fill--s{background:var(--speak)}.skill-card__bar-fill--w{background:var(--write)}.lesson-hub{max-width:960px;padding:28px 32px 60px;animation:.5s cubic-bezier(.2,.7,.2,1) both lh-rise}@keyframes lh-rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.lesson-hub--empty,.lesson-hub--loading,.lesson-hub--error{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:60vh;display:flex}.lesson-hub__empty-icon,.lesson-hub__error-icon{font-size:48px}.lesson-hub__empty-title,.lesson-hub__error-title{font-family:var(--font-display);margin:4px 0;font-size:28px;font-weight:600}.lesson-hub__empty-desc,.lesson-hub__error-desc,.lesson-hub__loading-text{color:var(--ink-mid);max-width:36ch;margin:0;font-size:15px}.lesson-hub__spinner{border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite lh-spin}@keyframes lh-spin{to{transform:rotate(360deg)}}.lesson-hub__back{color:var(--ink-mid);letter-spacing:.01em;align-items:center;gap:6px;margin-bottom:14px;font-size:13px;font-weight:700;text-decoration:none;transition:color .14s;display:inline-flex}.lesson-hub__back:hover{color:var(--ink)}.lesson-hub__kicker{flex-wrap:wrap;gap:7px;margin-bottom:10px;display:flex}.lh-pill{letter-spacing:.03em;background:var(--paper-2);color:var(--ink-mid);border:1px solid var(--line-soft);border-radius:999px;align-items:center;padding:4px 10px;font-size:11.5px;font-weight:800;display:inline-flex}.lh-pill--level{color:var(--listen);background:#2c54601a}.lh-pill--lang{color:var(--read);background:#bf45281a}.lesson-hub__title{font-family:var(--font-display);letter-spacing:-.01em;margin:0 0 6px;font-size:clamp(26px,4vw,38px);font-weight:600;line-height:1.08}.lesson-hub__meta{color:var(--ink-mid);font-size:14px;font-family:var(--font-read);margin:0 0 28px}.lesson-hub__grid{grid-template-columns:300px 1fr;align-items:start;gap:28px;display:grid}@media (width<=860px){.lesson-hub__grid{grid-template-columns:1fr}.lesson-hub{padding:20px 16px 60px}}.lesson-hub__wheel-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);text-align:center;padding:28px 24px}.lesson-hub__wheel-hint{color:var(--ink-mid);font-size:13.5px;line-height:1.5;font-family:var(--font-read);margin:10px 0 0}.lesson-hub__cards{grid-template-columns:1fr 1fr;gap:14px;display:grid}@media (width<=520px){.lesson-hub__cards{grid-template-columns:1fr}}.lh-btn{background:var(--ink);color:var(--paper);box-shadow:var(--shadow);border-radius:999px;align-items:center;gap:8px;margin-top:6px;padding:12px 22px;font-size:14px;font-weight:800;text-decoration:none;transition:transform .16s,box-shadow .16s;display:inline-flex}.lh-btn:hover{box-shadow:var(--shadow-lg);transform:translateY(-1px)}.lh-btn--ghost{color:var(--ink);border:1.5px solid var(--ink);background:0 0}.lh-btn--ghost:hover{background:var(--ink);color:var(--paper)}.reader{max-width:860px;margin:0 auto;padding:28px 20px 80px;position:relative}.reader--loading,.reader--error,.reader--empty{text-align:center;color:var(--ink-mid);padding:80px 20px}.reader__spinner{border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;width:28px;height:28px;margin:0 auto;animation:.8s linear infinite spin}.reader__card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:36px clamp(20px,5vw,56px)}.reader__kicker{gap:8px;margin-bottom:14px;display:flex}.r-pill{font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.04em;background:var(--paper-2);color:var(--ink-mid);border-radius:99px;padding:4px 10px;font-size:11px;font-weight:700}.r-pill--level{background:var(--read);color:#fff}.reader__title{font-family:var(--font-display);color:var(--ink);margin:0 0 8px;font-size:clamp(28px,5vw,40px);line-height:1.1}.reader__byline{font-family:var(--font-ui);color:var(--ink-mid);margin:0 0 22px;font-size:13px}.reader__passage{font-family:var(--font-read);color:#26241e;font-size:21px;line-height:1.85}.reader__w{cursor:pointer;border-radius:4px;transition:background .12s}.reader__w:hover{text-underline-offset:3px;background:#b0822f2e;text-decoration:underline}.reader__w--saved{background:#3f6b4329}.reader__back{font-family:var(--font-ui);color:var(--ink-mid);margin-top:28px;font-size:14px;text-decoration:none;display:inline-block}.reader__back:hover{color:var(--accent)}.tp-backdrop{z-index:50;position:fixed;inset:0}.tp{color:#f3ecdd;border-radius:var(--r);width:248px;box-shadow:var(--shadow-lg);background:#1d1b16;padding:14px 16px;position:fixed;transform:translateY(-100%)}.tp__term{font-family:var(--font-display);font-size:22px}.tp__pos{opacity:.7;margin-top:2px;font-size:13px;font-style:italic}.tp__translation{margin-top:6px;font-size:16px;font-weight:700}.tp__example{opacity:.8;margin-top:6px;font-size:13px;font-style:italic}.tp__actions{gap:8px;margin-top:12px;display:flex}.tp__btn{font-family:var(--font-ui);border-radius:var(--r-sm);color:inherit;cursor:pointer;background:#ffffff0f;border:1px solid #ffffff29;flex:1;padding:7px;font-size:13px}.tp__btn:hover{background:#ffffff1f}.tp__btn--saved{background:var(--green);border-color:var(--green);color:#fff}.ql{border-top:1px solid var(--line);margin-top:34px;padding-top:24px}.ql__head{font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin:0 0 16px;font-size:12px;font-weight:800}.ql__q{margin-bottom:20px}.ql__q-text{font-family:var(--font-read);color:var(--ink);margin:0 0 10px;font-size:17px}.ql__q-n{color:var(--ink-mid);font-weight:700}.ql__opts{flex-direction:column;gap:8px;display:flex}.ql__opt{text-align:left;font-family:var(--font-ui);border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--card);color:var(--ink);cursor:pointer;align-items:center;gap:10px;padding:11px 14px;font-size:15px;transition:border-color .12s,background .12s;display:flex}.ql__opt:hover:not(:disabled){border-color:var(--ink-mid)}.ql__opt:disabled{cursor:default}.ql__dot{border:2px solid var(--line);border-radius:50%;flex:none;width:16px;height:16px}.ql__opt--selected{border-color:var(--read);background:#bf45280f}.ql__opt--selected .ql__dot{border-color:var(--read);background:var(--read)}.ql__opt--correct{border-color:var(--green);background:#3f6b431a}.ql__opt--wrong{border-color:var(--accent);background:#bf45281a}.ql__opt--answer{border-color:var(--green);border-style:dashed}.ql__submit{font-family:var(--font-ui);background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:99px;margin-top:4px;padding:11px 28px;font-size:15px;font-weight:700}.ql__submit:disabled{opacity:.5;cursor:default}.ql__score{font-family:var(--font-display);color:var(--green);font-size:22px}.writing{max-width:760px;margin:0 auto;padding:28px 20px 80px}.writing--loading,.writing--error,.writing--empty{text-align:center;color:var(--ink-mid);font-family:var(--font-ui);padding:80px 20px}.writing--empty a,.writing--error a{color:var(--write)}.writing__card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:36px clamp(20px,5vw,48px)}.writing .r-pill--level{background:var(--write);color:#fff}.writing__title{font-family:var(--font-display);color:var(--ink);margin:6px 0 18px;font-size:clamp(24px,4vw,34px);line-height:1.1}.writing__prompt{font-family:var(--font-read);color:#26241e;border-left:3px solid var(--write);border-radius:0 var(--r-sm) var(--r-sm) 0;background:#6a4a6b12;margin:0 0 20px;padding:16px 20px;font-size:19px;line-height:1.6}.writing__input{width:100%;min-height:180px;font-family:var(--font-read);border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--card);color:var(--ink);resize:vertical;padding:16px 18px;font-size:18px;line-height:1.7;transition:border-color .12s}.writing__input::placeholder{color:var(--ink-mid);opacity:.6}.writing__input:focus{border-color:var(--write);outline:none}.writing .ql__submit{background:var(--write);margin-top:16px}.writing .ql__submit:hover:not(:disabled){background:#573a58}.writing__result{border-top:1px solid var(--line);margin-top:30px;padding-top:24px}.writing__result .ql__score{margin-bottom:6px;font-size:34px;display:inline-block}.writing .ql__head{color:var(--write);margin:22px 0 12px}.writing__fixes{flex-direction:column;gap:8px;margin:4px 0 0;padding:0;list-style:none;display:flex}.writing__fixes li{font-family:var(--font-ui);color:var(--ink);border-radius:var(--r-sm);background:#6a4a6b0f;padding:10px 14px 10px 34px;font-size:15px;line-height:1.5;position:relative}.writing__fixes li:before{content:"✎";color:var(--write);position:absolute;top:10px;left:13px}.writing__rewrite{font-family:var(--font-read);color:#26241e;border-left:3px solid var(--green);border-radius:0 var(--r-sm) var(--r-sm) 0;background:#3f6b4312;margin:0;padding:16px 20px;font-size:18px;line-height:1.75}.writing__corrections{flex-direction:column;gap:10px;margin:14px 0 0;padding:0;list-style:none;display:flex}.writing__corrections li{font-family:var(--font-ui);color:var(--ink);border-bottom:1px solid var(--line-soft);padding-bottom:10px;font-size:15px;line-height:1.55}.writing__corrections del{color:var(--accent);text-decoration-thickness:1.5px}.writing__corrections strong{color:var(--green);font-weight:700}.convo{max-width:720px;margin:0 auto;padding:28px 20px 80px}.convo--empty{text-align:center;color:var(--ink-mid);font-family:var(--font-ui);padding:80px 20px}.convo--empty a{color:var(--speak)}.convo__title{font-family:var(--font-display);color:var(--ink);margin:0 0 8px;font-size:clamp(26px,5vw,36px)}.convo__scenario{font-family:var(--font-read);color:#26241e;border-left:3px solid var(--speak);border-radius:0 var(--r-sm) var(--r-sm) 0;background:#b0822f14;margin:0 0 24px;padding:16px 20px;font-size:18px;line-height:1.6}.convo__thread{flex-direction:column;gap:12px;margin-bottom:28px;display:flex}.convo__bubble{max-width:78%;font-family:var(--font-read);border-radius:var(--r);box-shadow:var(--shadow);padding:12px 16px;font-size:17px;line-height:1.55}.convo__bubble--tutor{background:var(--card);border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:4px;align-self:flex-start}.convo__bubble--learner{background:var(--speak);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.convo__mic{min-width:200px;font-family:var(--font-ui);background:var(--speak);color:#fff;cursor:pointer;border:none;border-radius:99px;margin:0 auto;padding:16px 40px;font-size:16px;font-weight:700;transition:transform .12s,background .12s;display:block;box-shadow:0 12px 28px -10px #b0822f8c}.convo__mic:hover:not(:disabled){transform:translateY(-1px)}.convo__mic:disabled{opacity:.6;cursor:default}.convo__mic--rec{background:var(--accent);animation:1.4s infinite convo-pulse}@keyframes convo-pulse{0%{box-shadow:0 0 #bf452873}70%{box-shadow:0 0 0 16px #bf452800}to{box-shadow:0 0 #bf452800}}.convo__feedback{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);margin-top:8px;padding:22px 24px}.convo__feedback h2{font-family:var(--font-ui);text-transform:uppercase;letter-spacing:.06em;color:var(--speak);margin:0 0 12px;font-size:12px;font-weight:800}.convo__feedback p{font-family:var(--font-read);color:#26241e;margin:0 0 10px;font-size:17px;line-height:1.7}.convo__score{font-family:var(--font-display);color:var(--green);font-size:22px}.convo__back{font-family:var(--font-ui);color:var(--ink-mid);margin-top:24px;font-size:14px;text-decoration:none;display:inline-block}.convo__back:hover{color:var(--speak)}.listen{max-width:720px;margin:0 auto;padding:28px 20px 80px}.listen--loading,.listen--error,.listen--empty{text-align:center;color:var(--ink-mid);padding:80px 20px}.listen__card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:36px clamp(20px,5vw,48px)}.r-pill--listen{background:var(--listen);color:#fff}.listen__title{font-family:var(--font-display);margin:6px 0 24px;font-size:clamp(24px,4vw,34px)}.listen__player{flex-direction:column;align-items:center;gap:16px;padding:18px 0 24px;display:flex}.listen__orb{cursor:pointer;color:#fff;background:radial-gradient(circle at 35% 30%, #3a6b78, var(--listen));border:none;border-radius:50%;width:118px;height:118px;font-size:38px;transition:transform .12s;box-shadow:0 16px 36px -12px #2c546099}.listen__orb:hover{transform:scale(1.04)}.listen__rates{gap:8px;display:flex}.listen__rate{font-family:var(--font-ui);border:1.5px solid var(--line);background:var(--card);color:var(--ink-mid);cursor:pointer;border-radius:99px;padding:6px 14px;font-size:13px}.listen__rate--on{border-color:var(--listen);color:var(--listen);background:#2c546014}.listen__nosupport{font-family:var(--font-ui);color:var(--ink-mid);font-size:12px}.listen__text{font-family:var(--font-read);color:#26241e;filter:blur(7px);-webkit-user-select:none;user-select:none;font-size:18px;line-height:1.8;transition:filter .25s}.listen__text--shown{filter:none;-webkit-user-select:text;user-select:text}.listen__reveal{font-family:var(--font-ui);border:1.5px solid var(--line);background:var(--card);color:var(--ink-mid);cursor:pointer;border-radius:99px;margin-top:12px;padding:7px 16px;font-size:13px}.dict{border-top:1px solid var(--line);margin-top:28px;padding-top:22px}.dict__hint{font-family:var(--font-ui);color:var(--ink-mid);margin:0 0 12px;font-size:13px}.dict__input{width:100%;min-height:80px;font-family:var(--font-read);border:1.5px solid var(--line);border-radius:var(--r-sm);background:var(--card);color:var(--ink);resize:vertical;padding:12px 14px;font-size:16px}.dict__input:focus{border-color:var(--listen);outline:none}.dict__result{align-items:baseline;gap:12px;margin-top:14px;display:flex}.dict__feedback{font-family:var(--font-read);color:var(--ink-mid);margin:0;font-style:italic}.prog{max-width:720px;margin:0 auto;padding:28px 20px 80px}.prog--loading,.prog--error{text-align:center;color:var(--ink-mid);padding:80px 20px}.prog__title{font-family:var(--font-display);margin:0 0 4px;font-size:clamp(26px,5vw,36px)}.prog__sub{font-family:var(--font-ui);color:var(--ink-mid);margin:0 0 28px;font-size:14px}.prog__bars{flex-direction:column;gap:22px;display:flex}.prog__row-head{justify-content:space-between;align-items:baseline;margin-bottom:6px;display:flex}.prog__row-label{font-family:var(--font-ui);font-size:15px;font-weight:700}.prog__level{font-family:var(--font-display);font-size:18px}.prog__level--r{color:var(--read)}.prog__level--l{color:var(--listen)}.prog__level--s{color:var(--speak)}.prog__level--w{color:var(--write)}.prog__bar{background:var(--paper-2);border-radius:99px;height:13px;overflow:hidden}.prog__bar-fill{border-radius:99px;height:100%;transition:width .5s;display:block}.prog__bar-fill--r{background:var(--read)}.prog__bar-fill--l{background:var(--listen)}.prog__bar-fill--s{background:var(--speak)}.prog__bar-fill--w{background:var(--write)}.prog__scale{font-family:var(--font-ui);color:var(--ink-mid);justify-content:space-between;margin-top:4px;font-size:10.5px;display:flex}.prog__row-meta{font-family:var(--font-ui);color:var(--ink-mid);margin-top:6px;font-size:12.5px}.bill{max-width:540px;margin:0 auto;padding:28px 20px 80px}.bill--loading,.bill--error{text-align:center;color:var(--ink-mid);padding:80px 20px}.bill__title{font-family:var(--font-display);margin:0 0 22px;font-size:clamp(26px,5vw,36px)}.bill__card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:32px}.bill__card--pro{border-color:var(--gold,var(--speak));background:linear-gradient(180deg, #b0822f0f, var(--card))}.bill__plan{font-family:var(--font-display);color:var(--ink);font-size:30px}.bill__desc{font-family:var(--font-read);color:var(--ink-mid);margin:8px 0 20px;font-size:16px;line-height:1.6}.bill__upgrade{font-family:var(--font-ui);background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:99px;padding:12px 30px;font-size:15px;font-weight:700}.bill__upgrade:disabled{opacity:.5;cursor:default}.bill__err{font-family:var(--font-ui);color:var(--accent);margin-top:14px;font-size:13px}.lesson-hub__extra-cta{text-align:center;font-family:var(--font-ui);border-radius:var(--r);border:1.5px solid var(--line);background:var(--card);color:var(--ink);box-shadow:var(--shadow);margin-top:16px;padding:14px 24px;font-size:15px;font-weight:700;text-decoration:none;transition:border-color .14s,background .14s,transform .14s;display:block}.lesson-hub__extra-cta:hover{border-color:var(--ink);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.lesson-hub__extra-cta--kanji{border-left:4px solid var(--accent)}.kanji{max-width:560px;margin:0 auto;padding:28px 20px 80px}.kanji--loading,.kanji--error,.kanji--empty{text-align:center;color:var(--ink-mid);font-family:var(--font-ui);padding:80px 20px}.kanji--empty a,.kanji--error a{color:var(--accent)}.kanji--done{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;min-height:60vh;display:flex}.kanji__done-icon{font-size:48px}.kanji__done-title{font-family:var(--font-display);margin:4px 0;font-size:28px;font-weight:600}.kanji__done-desc{color:var(--ink-mid);max-width:32ch;margin:0;font-size:15px}.kanji__head{flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:20px;display:flex}.kanji__title{font-family:var(--font-display);flex:1;margin:0;font-size:clamp(24px,4vw,34px);font-weight:600}.kanji__count{font-family:var(--font-display);color:var(--accent);white-space:nowrap;font-size:18px;font-weight:700}.kanji__card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);flex-direction:column;align-items:center;gap:16px;padding:32px;display:flex}.kanji__char{font-family:var(--font-display);color:var(--ink);-webkit-user-select:none;user-select:none;font-size:42px}.kanji__pad{border:2px solid var(--line);border-radius:var(--r);touch-action:none;background:#f6f1e7;width:280px;height:280px;position:relative;overflow:hidden}.kanji__hint{font-family:var(--font-read);color:var(--ink-mid);margin:0;font-size:13px;font-style:italic}.kanji__mistakes{font-family:var(--font-ui);color:var(--accent);margin:0;font-size:13px;font-weight:700}.kanji__badge{font-family:var(--font-ui);color:#b0822f;background:#fdf3e0;border-radius:6px;margin-bottom:8px;padding:2px 8px;font-size:11px;font-weight:700;display:inline-block}.kanji__hint-btn{font-family:var(--font-ui);color:var(--accent);border:1px solid var(--accent);cursor:pointer;background:0 0;border-radius:6px;padding:2px 10px;font-size:13px;font-style:normal}@media (width<=480px){.kanji__pad{width:240px;height:240px}.kanji__card{padding:20px}}.auth-shell{background:var(--paper);background-image:radial-gradient(1200px 700px at 88% -8%,#bf452812,#0000 60%),radial-gradient(900px 600px at -6% 108%,#2c546014,#0000 55%);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex;position:relative;overflow:hidden}.auth-bg-accent{pointer-events:none;background:radial-gradient(600px 400px at 75% 10%,#bf452817,#0000 70%);position:absolute;inset:0}.auth-bg-teal{pointer-events:none;background:radial-gradient(500px 400px at 20% 90%,#2c546014,#0000 70%);position:absolute;inset:0}.auth-noise{pointer-events:none;opacity:.5;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");position:absolute;inset:0}.auth-card{z-index:2;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);width:100%;max-width:420px;box-shadow:var(--shadow-lg);padding:36px 40px 40px;animation:.55s cubic-bezier(.2,.7,.2,1) both auth-rise;position:relative}.auth-card--register{max-width:460px}@keyframes auth-rise{0%{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}.auth-brand{align-items:center;gap:12px;margin-bottom:20px;display:flex}.auth-mark{background:var(--ink);width:42px;height:42px;color:var(--paper);font-family:var(--font-display);box-shadow:var(--shadow);border-radius:12px;flex-shrink:0;place-items:center;font-size:22px;font-style:italic;font-weight:600;line-height:1;display:grid;transform:rotate(-4deg)}.auth-brand-name{font-family:var(--font-display);color:var(--ink);font-size:22px;font-weight:600;line-height:1}.auth-brand-sub{font-family:var(--font-ui);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-mid);margin-top:3px;font-size:11px;font-weight:600}.auth-divider{background:var(--line);height:1px;margin:0 0 24px}.auth-title{font-family:var(--font-display);color:var(--ink);letter-spacing:-.01em;margin:0 0 6px;font-size:28px;font-weight:600;line-height:1.08}.auth-lead{font-family:var(--font-ui);color:var(--ink-mid);margin:0 0 24px;font-size:14.5px;line-height:1.5}.auth-error{border-radius:var(--r-sm);color:var(--accent);font-family:var(--font-ui);background:#bf452814;border:1px solid #bf452847;margin-bottom:18px;padding:11px 14px;font-size:13.5px;font-weight:600;line-height:1.4}.auth-form{flex-direction:column;gap:16px;display:flex}.auth-field{flex-direction:column;gap:6px;display:flex}.auth-label{font-family:var(--font-ui);color:var(--ink);letter-spacing:.02em;text-transform:uppercase;font-size:12.5px;font-weight:700}.auth-optional{color:var(--ink-mid);text-transform:none;letter-spacing:0;font-weight:500}.auth-input{font-family:var(--font-ui);color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:var(--r-sm);box-sizing:border-box;appearance:none;outline:none;width:100%;padding:11px 14px;font-size:15px;transition:border-color .15s,box-shadow .15s}.auth-input::placeholder{color:#5c564a80}.auth-input:focus{border-color:var(--accent);background:var(--card);box-shadow:0 0 0 3px #bf45281f}.auth-select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%235C564A' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;padding-right:36px}.auth-btn{font-family:var(--font-ui);color:#fff;background:var(--accent);cursor:pointer;box-shadow:var(--shadow);letter-spacing:.01em;border:none;border-radius:999px;justify-content:center;align-items:center;margin-top:4px;padding:14px 24px;font-size:14.5px;font-weight:800;transition:background .15s,transform .15s,box-shadow .15s;display:flex}.auth-btn:hover:not(:disabled){background:var(--accent-press);box-shadow:var(--shadow-lg);transform:translateY(-1px)}.auth-btn:active:not(:disabled){background:var(--accent-press);transform:translateY(0)}.auth-btn:disabled{opacity:.55;cursor:not-allowed}.auth-switch{font-family:var(--font-ui);color:var(--ink-mid);text-align:center;margin:22px 0 0;font-size:13.5px}.auth-link{color:var(--accent);text-underline-offset:3px;font-weight:700;text-decoration:none}.auth-link:hover{text-decoration:underline}@media (width<=480px){.auth-card{padding:28px 24px 32px}}