:root{
  --night:#060a16;--ink:#0b1122;--panel:#0f172b;--panel2:#141e37;--line:#22304f;
  --text:#e9edf5;--muted:#8a97b4;--paper:#ece3cf;--paper2:#ddd2b8;--inkdark:#141310;
  --amber:#f5b942;--aurora:#37e0b0;--violet:#7b6cff;--red:#ff6b5e;--blue:#7cb3ff;
  --disp:"Barlow Condensed","Arial Narrow",Impact,sans-serif;
  --body:Barlow,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;background:var(--night);color:var(--text);font-family:var(--body);font-size:16px;line-height:1.55}
a{color:var(--amber)}
button,input,textarea{font-family:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{font-family:var(--disp);font-weight:700;text-transform:uppercase;letter-spacing:.01em;margin:0;line-height:1}
.kicker,.code{font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin:0}
.sub{color:var(--muted);margin:6px 0 0;font-size:15px}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#04060f 0%,#0a1330 55%,#14285c 100%)}
.sky{position:absolute;inset:0;pointer-events:none}
.stars{position:absolute;inset:0;width:100%;height:100%}
.stars .tw{animation:tw 3.2s ease-in-out infinite}
@keyframes tw{50%{opacity:.15}}
.aurora{position:absolute;border-radius:50%;filter:blur(46px);opacity:.5;mix-blend-mode:screen}
.a1{left:28%;top:-12%;width:64%;height:44%;background:linear-gradient(100deg,transparent,var(--aurora) 35%,#1c9cff 70%,transparent);transform:rotate(-8deg);animation:drift 16s ease-in-out infinite alternate}
.a2{left:46%;top:8%;width:58%;height:30%;background:linear-gradient(95deg,transparent,var(--violet) 40%,var(--aurora) 80%,transparent);transform:rotate(-14deg);opacity:.38;animation:drift 22s ease-in-out infinite alternate-reverse}
.a3{left:-10%;top:18%;width:50%;height:22%;background:linear-gradient(90deg,transparent,#1c9cff,transparent);opacity:.2;transform:rotate(6deg);animation:drift 19s ease-in-out infinite alternate}
@keyframes drift{to{transform:translateX(5%) rotate(-3deg) scaleY(1.25)}}
.moon{position:absolute;right:9%;top:92px;width:54px;height:54px;border-radius:50%;box-shadow:inset -15px 7px 0 0 #f2e8c9;filter:drop-shadow(0 0 18px rgba(242,232,201,.45))}
.shoot{position:absolute;left:58%;top:16%;width:110px;height:1.5px;background:linear-gradient(90deg,#fff,transparent);transform:rotate(-24deg);opacity:0;animation:shoot 9s linear infinite 3s}
@keyframes shoot{0%{opacity:0;translate:0 0}2%{opacity:1}7%{opacity:0;translate:-260px 116px}100%{opacity:0;translate:-260px 116px}}

.top{position:relative;z-index:2;display:flex;align-items:center;gap:26px;max-width:1160px;margin:0 auto;padding:20px 24px}
.brand{font-family:var(--disp);font-weight:800;font-size:22px;letter-spacing:.14em;text-transform:uppercase;color:var(--text);text-decoration:none}
.top nav{display:flex;gap:22px;margin-left:auto}
.top nav a{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--text);opacity:.75;text-decoration:none}
.top nav a:hover{opacity:1;color:var(--amber)}
.auth{background:none;border:1px solid rgba(255,255,255,.35);padding:8px 14px;font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase}
.auth:hover{border-color:var(--amber);color:var(--amber)}

.hero-inner{position:relative;z-index:2;max-width:1160px;margin:0 auto;padding:34px 24px 0}
.hero h1{font-size:clamp(60px,11.5vw,146px);font-weight:800;line-height:.86;margin:14px 0 0;letter-spacing:-.01em}
.hero h1 em{font-style:normal;color:var(--amber);overflow-wrap:anywhere}
.lede{font-size:clamp(17px,2.2vw,22px);margin:22px 0 0;max-width:520px;color:#c9d3ea}
.cta{display:inline-block;margin-top:28px;background:var(--amber);color:#17110a;font-family:var(--disp);font-weight:700;font-size:24px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;padding:14px 30px 13px;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));transition:transform .15s,background .15s}
.cta:hover{transform:translate(3px,-3px);background:#ffd27a}
.scene{position:relative;z-index:1;display:block;width:100%;min-width:680px;margin:-60px 0 0 50%;transform:translateX(-50%)}
#plane{transition:transform .9s cubic-bezier(.4,0,.2,1)}
#arcDone{transition:stroke-dasharray .9s cubic-bezier(.4,0,.2,1)}
.wp{fill:#0a1330;stroke:#fff;stroke-opacity:.5;stroke-width:1.5}
.wp.on{fill:var(--amber);stroke:var(--amber);stroke-opacity:1}
@media (prefers-reduced-motion:reduce){.aurora,.shoot,.stars .tw{animation:none}#plane,#arcDone{transition:none}html{scroll-behavior:auto}}

/* ============ BOARDING PASS ============ */
.pass-wrap{max-width:1160px;margin:-34px auto 0;padding:0 24px;position:relative;z-index:3}
.pass{display:grid;grid-template-columns:1fr 250px;background:var(--paper);color:var(--inkdark);box-shadow:0 24px 60px -20px rgba(0,0,0,.8);transform:rotate(-.6deg)}
.pass-main{display:grid;grid-template-columns:repeat(3,1fr);gap:16px 22px;padding:22px 26px}
.pass-stub{position:relative;padding:22px 24px;border-left:2px dashed #8f856c;display:flex;flex-direction:column;gap:14px;background:var(--paper2)}
.pass-stub::before,.pass-stub::after{content:"";position:absolute;left:-11px;width:20px;height:20px;border-radius:50%;background:var(--night)}
.pass-stub::before{top:-10px}.pass-stub::after{bottom:-10px}
.f span{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#6d6552}
.f span i{font-style:normal}
.f b span{display:inline;font:inherit;letter-spacing:inherit;color:inherit}
.f b,.f input{display:block;font-family:var(--disp);font-weight:700;font-size:26px;line-height:1.1;text-transform:uppercase;letter-spacing:.02em;color:var(--inkdark)}
.f b.big{font-size:54px;line-height:.95}
.f input{width:100%;background:none;border:0;border-bottom:2px dashed #b06a00;padding:0 0 1px;border-radius:0;color:#b06a00}
.f input::placeholder{color:#b06a00;opacity:.55}
.f input:focus{outline:none;border-bottom-style:solid}
.f.wide{grid-column:1/-1}
.meter{height:10px;margin-top:7px;background:repeating-linear-gradient(90deg,#c9bd9f 0 2px,transparent 2px 8px);position:relative}
.meter i{position:absolute;inset:0 auto 0 0;width:0;background:var(--inkdark);transition:width .6s}
.barcode{margin-top:auto;height:38px;background:repeating-linear-gradient(90deg,var(--inkdark) 0 2px,transparent 2px 5px,var(--inkdark) 5px 6px,transparent 6px 10px,var(--inkdark) 10px 13px,transparent 13px 15px)}
@media(max-width:760px){
  .pass{grid-template-columns:1fr;transform:none}
  .pass-main{grid-template-columns:1fr 1fr;padding:18px}
  .pass-stub{border-left:0;border-top:2px dashed #8f856c;flex-direction:row;flex-wrap:wrap;padding:16px 18px}
  .pass-stub::before{top:-11px;left:-10px}.pass-stub::after{top:-11px;bottom:auto;left:auto;right:-10px}
  .barcode{display:none}.f b.big{font-size:38px}
  .top nav{display:none}.auth{margin-left:auto}
  .hero-inner{padding-top:30px}.moon{top:150px;right:7%;scale:.75}
  .scene{margin-top:10px}
}

/* ============ SECTIONS ============ */
main{max-width:1160px;margin:0 auto;padding:0 24px 70px}
.section{margin-top:84px;scroll-margin-top:20px}
.section h2{font-size:clamp(40px,6vw,68px);font-weight:800;margin-top:8px}
.note{margin:18px 0 0;padding:14px 18px;border-left:3px solid var(--amber);background:var(--ink);color:#c2cce2;font-size:15px;max-width:820px}
.note b{color:var(--text)}

.phase{margin:46px 0 14px;display:flex;align-items:baseline;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:10px}
.phase h3{font-size:26px;color:var(--text)}
.phase p{margin:0;color:var(--muted);font-size:14px}

/* week = ticket */
.tk{margin:12px 0;background:var(--panel);border:1px solid var(--line)}
.tk.current{border-color:var(--amber)}
.tk>summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:84px 1fr auto;align-items:stretch}
.tk>summary::-webkit-details-marker{display:none}
.stub{background:var(--paper);color:var(--inkdark);display:flex;flex-direction:column;justify-content:center;align-items:center;padding:12px 0;border-right:2px dashed var(--night);position:relative}
.stub span{font-family:var(--mono);font-size:10px;letter-spacing:.16em}
.stub b{font-family:var(--disp);font-size:40px;font-weight:800;line-height:.9}
.tk.done .stub{background:var(--aurora)}
.tk.current .stub{background:var(--amber)}
.tk-main{padding:14px 18px;display:flex;flex-direction:column;justify-content:center;gap:5px;min-width:0}
.tk-main h4{font-size:24px}
.tk-meta{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.tk-meta .ok{color:var(--aurora)}
.tk-pct{display:flex;align-items:center;padding:0 20px;font-family:var(--disp);font-weight:700;font-size:28px;color:var(--muted)}
.tk.done .tk-pct{color:var(--aurora)}
.tk[open] .tk-pct::after,.tk:not([open]) .tk-pct::after{content:"+";margin-left:14px;color:var(--amber);font-weight:500}
.tk[open] .tk-pct::after{content:"–"}
.wbody{padding:6px 18px 20px 102px;border-top:1px dashed var(--line)}
@media(max-width:640px){.wbody{padding-left:18px}.tk>summary{grid-template-columns:62px 1fr auto}.stub b{font-size:32px}.tk-main h4{font-size:20px}.tk-pct{padding:0 12px;font-size:22px}}
.focus{margin:14px 0 12px;font-size:15px;color:#c8d1e6}
.focus::before{content:"GRAMMAR FOCUS";display:block;font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--amber);margin-bottom:3px}
.focus b{color:var(--text)}
.focus s{color:var(--red)}
.tasks{display:grid}
.task{display:flex;gap:14px;align-items:flex-start;padding:12px 0;border-top:1px solid var(--line)}
.task .box{width:22px;height:22px;border:2px solid var(--muted);background:none;flex:none;margin-top:2px;padding:0;display:grid;place-items:center}
.task .box:hover{border-color:var(--amber)}
.task.done .box{background:var(--aurora);border-color:var(--aurora)}
.task.done .box::after{content:"✓";color:#04241a;font-size:14px;font-weight:700}
.task .t{flex:1;font-size:15px;min-width:0}
.task .tt{cursor:pointer;display:block}
.task.done .tt,.task.done .meta{opacity:.5;text-decoration:line-through}
.task .meta{display:block;color:var(--muted);font-size:13px}
.mat{display:inline-block;margin-top:5px;font-family:var(--mono);font-size:12px;color:var(--amber);text-decoration:none;border-bottom:1px solid rgba(245,185,66,.35)}
.mat:hover{border-bottom-color:var(--amber)}
.mat .k{opacity:.7;margin-right:6px}

/* buttons */
.btn{background:var(--amber);color:#17110a;border:0;font-family:var(--disp);font-weight:700;font-size:17px;letter-spacing:.08em;text-transform:uppercase;padding:9px 18px 8px}
.btn:hover{background:#ffd27a}
.btn.ghost{background:none;color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}
.btn.ghost:hover{box-shadow:inset 0 0 0 1px var(--amber);color:var(--amber)}

/* quiz */
.quiz{margin-top:16px;padding:16px 18px;background:var(--ink);border:1px dashed var(--line)}
.quiz-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.quiz-head .tk-meta{margin-left:auto}
.quiz h5{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin:0 0 8px;font-weight:500}
.quiz .q{font-size:18px;font-weight:500;margin:0 0 12px}
.opts{display:grid;gap:8px}
.opt{text-align:left;background:var(--panel2);border:1px solid var(--line);padding:11px 14px;font-size:15px}
.opt:hover:not(:disabled){border-color:var(--amber)}
.opt:disabled{cursor:default;opacity:.55}
.opt.right{border-color:var(--aurora);background:rgba(55,224,176,.12);opacity:1}
.opt.wrong{border-color:var(--red);background:rgba(255,107,94,.1);opacity:1}
.why{margin:12px 0;font-size:14px;color:#c8d1e6}
.why b{color:var(--aurora)}.why b.no{color:var(--red)}
.score{font-family:var(--disp);font-weight:800;font-size:56px;line-height:1;margin:2px 0 6px}
.quiz-foot{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}

/* notes */
.note-form{margin-top:18px;max-width:820px}
.note-form textarea{width:100%;background:var(--paper);color:var(--inkdark);border:0;padding:14px 16px;font-size:16px;line-height:1.5;resize:vertical;border-radius:0;background-image:repeating-linear-gradient(transparent 0 23px,rgba(20,19,16,.1) 23px 24px);background-position:0 14px}
.note-form textarea::placeholder{color:#857c66}
.note-form textarea:focus{outline:2px solid var(--amber);outline-offset:2px}
.note-actions{display:flex;gap:10px;margin-top:10px;flex-wrap:wrap}
.note-list{display:grid;gap:12px;margin-top:22px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.n{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--amber);padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.n-text{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;outline:none;min-height:1.5em}
.n-text:focus{background:var(--panel2);box-shadow:0 0 0 6px var(--panel2)}
.n-foot{display:flex;justify-content:space-between;align-items:center;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:auto}
.n-del{background:none;border:0;color:var(--muted);font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;padding:2px 0}
.n-del:hover,.n-del.sure{color:var(--red)}
.empty{color:var(--muted);font-size:14px;grid-column:1/-1}

/* library */
.lib{margin-top:20px;border-top:1px solid var(--line)}
.lib a{display:grid;grid-template-columns:54px 1fr auto;gap:16px;align-items:baseline;padding:14px 0;border-bottom:1px solid var(--line);text-decoration:none;color:inherit}
.lib a:hover h4{color:var(--amber)}
.lib .ic{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--amber);text-transform:uppercase}
.lib h4{font-family:var(--body);text-transform:none;font-size:17px;font-weight:600;letter-spacing:0;line-height:1.3}
.lib p{margin:2px 0 0;font-size:14px;color:var(--muted)}
.lvl{font-family:var(--mono);font-size:11px;color:var(--muted);white-space:nowrap}
@media(max-width:640px){.lib a{grid-template-columns:40px 1fr}.lvl{display:none}}

/* diagnosis */
.diag-wrap summary{cursor:pointer;list-style:none;padding:8px 0}
.diag-wrap summary::-webkit-details-marker{display:none}
.diag-wrap summary .kicker::after{content:"  +"}
.diag-wrap[open] summary .kicker::after{content:"  –"}
.diag{margin-top:8px;border-top:1px solid var(--line)}
.diag .row{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.tag{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;padding:3px 8px;border:1px solid}
.tag.weak{color:var(--red)}.tag.ok{color:var(--blue)}.tag.strong{color:var(--aurora)}
.fix{font-size:14px;color:var(--muted);margin-top:2px}
.fix b{color:var(--text);font-weight:500}.fix s{color:var(--red)}

footer{text-align:center;color:var(--muted);font-family:var(--mono);font-size:11px;letter-spacing:.08em;padding:26px;border-top:1px solid var(--line)}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--paper);color:var(--inkdark);padding:10px 18px;font-size:14px;font-weight:500;opacity:0;transition:.3s;pointer-events:none;z-index:10;max-width:90vw}
.toast.show{opacity:1}
dialog{background:var(--panel);color:var(--text);border:1px solid var(--line);padding:24px;width:min(400px,90vw)}
dialog::backdrop{background:rgba(3,5,12,.75)}
dialog h3{font-size:28px}
dialog input{width:100%;margin:14px 0;background:var(--panel2);border:1px solid var(--line);padding:11px 12px;font-size:16px;border-radius:0}
.dlg-actions{display:flex;justify-content:flex-end;gap:8px}