:root{--paper: #f5f2ea;--paper-raised: #fffdf8;--paper-sunken: #ece7db;--ink: #14243d;--ink-soft: #55637a;--ink-faint: #8b95a6;--line: #ddd5c4;--line-strong: #c9bfa9;--gold: #9b6f28;--gold-bright: #c79a4f;--gold-wash: #f2e7d0;--good: #276749;--good-wash: #dcefe2;--bad: #a52f26;--bad-wash: #f7e0dd;--trick: #b02a6b;--trick-wash: #fbe4ef;--trick-line: #f0bcd6;--shadow: 0 1px 2px rgb(20 36 61 / .06), 0 8px 24px -12px rgb(20 36 61 / .18);--shadow-lift: 0 2px 6px rgb(20 36 61 / .08), 0 18px 40px -18px rgb(20 36 61 / .3);--r-sm: 8px;--r: 14px;--r-lg: 20px;--col: 600px;--sans: "Instrument Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--serif: "Instrument Serif", ui-serif, Georgia, "Times New Roman", serif;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--paper: #0d1522;--paper-raised: #15202f;--paper-sunken: #0a111c;--ink: #eae5da;--ink-soft: #9aa7b8;--ink-faint: #6b7889;--line: #26334a;--line-strong: #37465f;--gold: #d6ac63;--gold-bright: #e3c284;--gold-wash: #2a2313;--good: #6ec18f;--good-wash: #14291e;--bad: #e98b80;--bad-wash: #2c1613;--trick: #f09ac4;--trick-wash: #33122440;--trick-line: #5a2143;--shadow: 0 1px 2px rgb(0 0 0 / .4), 0 8px 24px -12px rgb(0 0 0 / .6);--shadow-lift: 0 2px 6px rgb(0 0 0 / .5), 0 18px 40px -18px rgb(0 0 0 / .7);color-scheme:dark}}:root[data-theme=dark]{--paper: #0d1522;--paper-raised: #15202f;--paper-sunken: #0a111c;--ink: #eae5da;--ink-soft: #9aa7b8;--ink-faint: #6b7889;--line: #26334a;--line-strong: #37465f;--gold: #d6ac63;--gold-bright: #e3c284;--gold-wash: #2a2313;--good: #6ec18f;--good-wash: #14291e;--bad: #e98b80;--bad-wash: #2c1613;--trick: #f09ac4;--trick-wash: #33122440;--trick-line: #5a2143;--shadow: 0 1px 2px rgb(0 0 0 / .4), 0 8px 24px -12px rgb(0 0 0 / .6);--shadow-lift: 0 2px 6px rgb(0 0 0 / .5), 0 18px 40px -18px rgb(0 0 0 / .7);color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overflow-wrap:break-word}.app{max-width:var(--col);margin:0 auto;padding:max(env(safe-area-inset-top),12px) 16px calc(env(safe-area-inset-bottom) + 96px)}.app--flush{padding-bottom:calc(env(safe-area-inset-bottom) + 16px)}h1,h2,h3{margin:0;font-weight:600;line-height:1.2;letter-spacing:-.01em}h1{font-size:1.55rem}h2{font-size:1.15rem}h3{font-size:1rem}p{margin:0 0 .75em}a{color:var(--gold)}:where(button,a,input,select,textarea,[tabindex]):focus-visible{outline:2px solid var(--gold-bright);outline-offset:2px;border-radius:var(--r-sm)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}.masthead{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:6px 0 18px}.wordmark{font-family:var(--serif);font-size:1.7rem;letter-spacing:.01em;line-height:1}.wordmark span{color:var(--gold)}.masthead .sub{font-size:.78rem;color:var(--ink-faint);letter-spacing:.04em;text-transform:uppercase}.screen-head{display:flex;align-items:center;gap:10px;padding:2px 0 14px}.screen-head h1{flex:1;min-width:0}.card{background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:16px}.card+.card{margin-top:10px}.stack{display:grid;gap:10px}.row{display:flex;align-items:center;gap:10px}.row--tight{gap:6px}.spacer{flex:1}.muted{color:var(--ink-soft)}.faint{color:var(--ink-faint)}.small{font-size:.85rem}.tiny{font-size:.75rem}.num{font-variant-numeric:tabular-nums}.section-label{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin:22px 0 8px;display:flex;align-items:center;gap:8px}.section-label:after{content:"";flex:1;height:1px;background:var(--line)}.stamp{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:center;background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:18px 16px;position:relative;overflow:hidden}.stamp:before{content:"";position:absolute;inset:0 auto 0 0;width:5px;background:linear-gradient(var(--gold-bright),var(--gold))}.ring{--v: 0;width:92px;height:92px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--gold) calc(var(--v) * 1%),var(--paper-sunken) 0);position:relative;flex:none}.ring:after{content:"";position:absolute;inset:8px;border-radius:50%;background:var(--paper-raised)}.ring b{position:relative;z-index:1;font-family:var(--serif);font-size:1.7rem;font-weight:400;line-height:1}.legend{display:flex;flex-wrap:wrap;gap:4px 14px;margin-top:8px}.legend span{display:inline-flex;align-items:center;gap:5px;font-size:.8rem;color:var(--ink-soft)}.dot{width:9px;height:9px;border-radius:50%;background:var(--line-strong);flex:none}.dot--good{background:var(--good)}.dot--learning{background:var(--gold-bright)}.dot--bad{background:var(--bad)}.bar{--v: 0;height:8px;border-radius:99px;background:var(--paper-sunken);overflow:hidden}.bar>i{display:block;height:100%;width:calc(var(--v) * 1%);border-radius:99px;background:var(--gold);transition:width .35s ease}.bar--good>i{background:var(--good)}.tile{display:grid;grid-template-columns:38px minmax(0,1fr) auto;align-items:center;gap:12px;width:100%;text-align:left;background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:13px 14px;font:inherit;color:inherit;cursor:pointer}.tile:disabled{cursor:default;opacity:.55;box-shadow:none}.tile:not(:disabled):active{transform:translateY(1px)}.tile .ico{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:var(--gold-wash);color:var(--gold)}.tile .ico--good{background:var(--good-wash);color:var(--good)}.tile .ico--bad{background:var(--bad-wash);color:var(--bad)}.tile b{display:block;font-weight:600}.badge{min-width:26px;padding:2px 8px;border-radius:99px;background:var(--gold);color:var(--paper-raised);font-size:.8rem;font-weight:600;text-align:center;font-variant-numeric:tabular-nums}.badge--bad{background:var(--bad)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 16px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--paper-raised);color:var(--ink);font:inherit;font-weight:600;cursor:pointer}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:default;transform:none}.btn--primary{background:var(--ink);border-color:var(--ink);color:var(--paper)}.btn--gold{background:var(--gold);border-color:var(--gold);color:#fff}.btn--ghost{background:transparent;border-color:transparent;color:var(--ink-soft);font-weight:500}.btn--danger{color:var(--bad);border-color:var(--bad);background:transparent}.btn--block{width:100%}.btn--lg{min-height:54px;font-size:1.05rem}.icon-btn{display:inline-grid;place-items:center;width:40px;height:40px;flex:none;border-radius:var(--r-sm);border:1px solid transparent;background:transparent;color:var(--ink-soft);cursor:pointer}.icon-btn:hover{background:var(--paper-sunken)}.icon-btn[aria-pressed=true]{color:var(--gold)}.chips{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:2px 0;margin:0 -16px;padding-inline:16px}.chips::-webkit-scrollbar{display:none}.chip{flex:none;padding:6px 12px;border-radius:99px;border:1px solid var(--line-strong);background:var(--paper-raised);color:var(--ink-soft);font:inherit;font-size:.85rem;cursor:pointer;white-space:nowrap}.chip[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:var(--paper)}.tag{display:inline-block;padding:2px 8px;border-radius:99px;background:var(--paper-sunken);color:var(--ink-soft);font-size:.72rem;white-space:nowrap}.qhead{display:flex;align-items:flex-start;gap:6px;margin-bottom:8px}.qlabel{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--gold);font-weight:600;padding-top:10px}.qtext{font-size:1.12rem;font-weight:600;line-height:1.38;margin:0}.qtext-en{color:var(--ink-soft);font-style:italic;margin:6px 0 0}.options{display:grid;gap:8px;margin:14px 0 0;padding:0;list-style:none}.option{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:10px;align-items:start;width:100%;text-align:left;padding:11px 12px;border-radius:var(--r-sm);border:1.5px solid var(--line);background:var(--paper-raised);color:inherit;font:inherit;cursor:pointer}.option:disabled{cursor:default}.option .letter{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--paper-sunken);color:var(--ink-soft);font-size:.85rem;font-weight:700}.option--picked{border-color:var(--ink);background:var(--paper-sunken)}.option--picked .letter{background:var(--ink);color:var(--paper)}.option--right{border-color:var(--good);background:var(--good-wash)}.option--right .letter{background:var(--good);color:#fff}.option--wrong{border-color:var(--bad);background:var(--bad-wash)}.option--wrong .letter{background:var(--bad);color:#fff}.option--dim{opacity:.6}.option .text-en{display:block;font-size:.85rem;font-style:italic;color:var(--ink-soft);margin-top:2px}.option .mark{align-self:center;display:grid;place-items:center}.pics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;margin-top:12px}.pics figure{margin:0;text-align:center}.pics img,.qpic img{width:100%;display:block;background:#fff;border-radius:6px}.pics img{aspect-ratio:1;object-fit:contain;border:1px solid var(--line);padding:4px}.pics figcaption{font-size:.7rem;color:var(--ink-faint);margin-top:2px}.qpic{margin-top:12px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;background:#fff}.qpic img{max-height:340px;object-fit:contain}.verdict{display:flex;align-items:center;gap:8px;margin-top:14px;font-weight:700}.verdict--good{color:var(--good)}.verdict--bad{color:var(--bad)}.verdict--plain{color:var(--ink-soft)}.note-box{border-radius:var(--r-sm);padding:12px;margin-top:10px;background:var(--paper-sunken)}.note-box--hint{background:var(--gold-wash)}.note-box h3{display:flex;align-items:center;gap:6px;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:4px}.note-box--hint h3{color:var(--gold)}.note-box p{margin:0}.field{display:grid;gap:5px}.field>span{font-size:.82rem;color:var(--ink-soft)}input[type=text],input[type=email],input[type=password],input[type=search],select,textarea{width:100%;min-height:44px;padding:10px 12px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--paper-raised);color:var(--ink);font:inherit}textarea{min-height:84px;resize:vertical}select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,currentColor 50%),linear-gradient(135deg,currentColor 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:34px}.switch{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;width:100%;text-align:left;background:none;border:0;padding:0;font:inherit;color:inherit;cursor:pointer}.switch .knob{width:46px;height:28px;border-radius:99px;background:var(--line-strong);position:relative;flex:none;transition:background .15s ease}.switch .knob:after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px #0000004d;transition:transform .15s ease}.switch[aria-pressed=true] .knob{background:var(--good)}.switch[aria-pressed=true] .knob:after{transform:translate(18px)}.seg{display:inline-flex;padding:3px;gap:3px;border-radius:99px;background:var(--paper-sunken)}.seg button{border:0;background:none;font:inherit;font-size:.88rem;padding:6px 13px;border-radius:99px;color:var(--ink-soft);cursor:pointer}.seg button[aria-pressed=true]{background:var(--paper-raised);color:var(--ink);font-weight:600;box-shadow:var(--shadow)}.rows{list-style:none;margin:0;padding:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--paper-raised)}.rows>li+li{border-top:1px solid var(--line)}.qrow{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:10px;align-items:center;width:100%;text-align:left;padding:11px 12px;background:none;border:0;font:inherit;color:inherit;cursor:pointer}.qrow:hover{background:var(--paper-sunken)}.qrow .idx{display:grid;justify-items:center;gap:3px;color:var(--gold);font-size:.8rem;font-weight:700;font-variant-numeric:tabular-nums}.clamp2{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.clamp1{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.exambar{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:10px;padding:10px 0;margin-bottom:4px;background:color-mix(in srgb,var(--paper) 92%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.clock{font-family:var(--serif);font-size:1.5rem;font-variant-numeric:tabular-nums;line-height:1}.clock--urgent{color:var(--bad)}.grid-nav{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:8px}.grid-nav button{min-height:44px;border-radius:var(--r-sm);border:1.5px solid var(--line);background:var(--paper-raised);font:inherit;font-variant-numeric:tabular-nums;color:var(--ink-soft);cursor:pointer}.grid-nav button[data-done=true]{background:var(--paper-sunken);color:var(--ink);font-weight:600}.grid-nav button[aria-current=true]{border-color:var(--gold);color:var(--gold)}.result{text-align:center;border-radius:var(--r-lg);border:2px solid var(--line-strong);background:var(--paper-raised);padding:22px 16px}.result--pass{border-color:var(--good);background:var(--good-wash)}.result--fail{border-color:var(--bad);background:var(--bad-wash)}.result .score{font-family:var(--serif);font-size:3rem;line-height:1;font-variant-numeric:tabular-nums}.result .label{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700}.result--pass .label{color:var(--good)}.result--fail .label{color:var(--bad)}.figures{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.figure{background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--r);padding:12px 8px;text-align:center}.figure b{display:block;font-family:var(--serif);font-size:1.6rem;font-weight:400;line-height:1.1;font-variant-numeric:tabular-nums}.figure span{font-size:.74rem;color:var(--ink-soft)}.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:0 12px calc(env(safe-area-inset-bottom) + 10px);background:linear-gradient(to top,var(--paper) 62%,transparent);pointer-events:none}.tabbar-inner{max-width:var(--col);margin:0 auto;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:2px;padding:5px;border-radius:99px;border:1px solid var(--line);background:var(--paper-raised);box-shadow:var(--shadow-lift);pointer-events:auto}.tab{display:grid;justify-items:center;gap:2px;padding:7px 2px;border:0;border-radius:99px;background:none;font:inherit;font-size:.68rem;color:var(--ink-faint);cursor:pointer}.tab[aria-current=page]{background:var(--paper-sunken);color:var(--ink);font-weight:600}.scrim{position:fixed;inset:0;z-index:40;background:#0a111c73;display:flex;align-items:flex-end;justify-content:center;animation:fade .15s ease}.sheet{width:100%;max-width:var(--col);max-height:88vh;overflow:auto;overscroll-behavior:contain;background:var(--paper);border-radius:var(--r-lg) var(--r-lg) 0 0;border:1px solid var(--line);border-bottom:0;padding:8px 16px calc(env(safe-area-inset-bottom) + 20px);animation:rise .2s cubic-bezier(.2,.9,.3,1)}.sheet .grip{width:40px;height:4px;border-radius:99px;background:var(--line-strong);margin:6px auto 12px}.sheet h2{margin-bottom:10px}@keyframes rise{0%{transform:translateY(14px);opacity:0}}@keyframes fade{0%{opacity:0}}.toast{position:fixed;left:50%;bottom:calc(env(safe-area-inset-bottom) + 96px);transform:translate(-50%);z-index:60;max-width:calc(100vw - 32px);padding:11px 16px;border-radius:99px;background:var(--ink);color:var(--paper);box-shadow:var(--shadow-lift);font-size:.9rem;animation:rise .2s ease}.chat{display:grid;gap:8px;margin:4px 0 12px}.bubble{padding:10px 13px;border-radius:var(--r);max-width:88%;white-space:pre-wrap}.bubble--me{justify-self:end;background:var(--ink);color:var(--paper);border-bottom-right-radius:4px}.bubble--coach{justify-self:start;background:var(--paper-raised);border:1px solid var(--line);border-bottom-left-radius:4px}.typing{display:inline-flex;gap:4px}.typing i{width:6px;height:6px;border-radius:50%;background:var(--ink-faint);animation:blink 1.2s infinite}.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}@keyframes blink{0%,60%,to{opacity:.25}30%{opacity:1}}.empty{text-align:center;color:var(--ink-soft);padding:32px 16px}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.card--face{padding:18px 16px 20px}.options--flat .option{cursor:default;align-items:start}.card-actions{position:sticky;bottom:0;z-index:6;margin-top:18px;padding:12px 0 calc(env(safe-area-inset-bottom) + 12px);background:var(--paper);box-shadow:0 -10px 14px -6px var(--paper),0 -20px 16px -12px var(--paper)}.grades{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}.grade{display:grid;gap:1px;padding:10px 4px;min-height:56px;border-radius:var(--r-sm);border:1.5px solid var(--line-strong);background:var(--paper-raised);color:var(--ink);font:inherit;cursor:pointer}.grade:active{transform:translateY(1px)}.grade b{font-size:.92rem;font-weight:600}.grade span{font-size:.72rem;color:var(--ink-faint)}.grade--again{border-color:var(--bad);color:var(--bad)}.grade--hard{border-color:var(--gold);color:var(--gold)}.grade--good{border-color:var(--good);color:var(--good)}.grade--easy{border-color:var(--good);background:var(--good-wash);color:var(--good)}.score-big{font-family:var(--serif);font-size:3.2rem;line-height:1;margin:0 0 6px;font-variant-numeric:tabular-nums}.trick-mark{background:var(--trick-wash);color:var(--trick);font-weight:700;border-radius:4px;padding:0 3px;box-decoration-break:clone;-webkit-box-decoration-break:clone}.note-box--trick{background:var(--trick-wash);border:1px solid var(--trick-line)}.note-box--trick h3{color:var(--trick)}.note-box--trick .trick-mark{background:var(--trick);color:var(--paper-raised)}.trick-arrow{color:var(--trick);font-weight:700}.trick-pair{display:flex;flex-wrap:wrap;align-items:flex-start;gap:6px 10px;margin:0;font-size:1.05rem}.trick-half{display:inline-grid;justify-items:start;gap:2px}.trick-gloss{font-size:.78rem;line-height:1.25;color:var(--trick);opacity:.85}.trick-pair .trick-arrow{font-size:1.2rem;line-height:1;padding-top:2px}.option-row{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:2px}.icon-btn--sm{width:32px;height:32px;color:var(--ink-faint)}.icon-btn.is-playing{color:var(--bad)}.misses{font-size:.78rem;font-weight:700;color:var(--bad);background:var(--bad-wash);border-radius:99px;padding:1px 7px}