.fc-wrap{--r-btn:4px;--r-card:8px;--r-chip:4px;--r-img:0;max-width:var(--container-max,1200px);margin:0 auto;padding:40px 16px 64px}.fc-subbar{top:var(--topbar-height,64px);z-index:var(--z-sticky,100);background:var(--color-bg-app,#fff);border-bottom:1px solid var(--color-border-subtle,#e5e8ee);align-items:center;height:56px;display:flex;position:sticky}.fc-subbar .inner{width:100%;max-width:var(--container-max,1200px);grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin:0 auto;padding:0 16px;display:grid}.fc-subbar-left{align-items:center;gap:12px;min-width:0;display:flex}.fc-deckchip{border-radius:var(--r-btn);background:color-mix(in srgb, var(--color-lang-purple,#7c52d4) 10%, var(--color-bg-app,#fff));color:var(--color-lang-purple,#7c52d4);white-space:nowrap;align-items:center;gap:8px;padding:4px 12px;font-size:13px;font-weight:700;display:inline-flex}.fc-subbar-count{color:var(--color-ink-secondary,#3f4756);font-size:14px;font-weight:600}.fc-subbar-right{justify-content:flex-end;align-items:center;gap:10px;display:flex}.fc-ib40{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);width:40px;min-width:40px;height:40px;color:var(--color-ink-secondary,#3f4756);cursor:pointer;background:0 0;place-items:center;transition:border-color .12s,color .12s;display:grid}.fc-ib40:hover{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4)}.fc-exitbtn{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);min-height:40px;color:var(--color-ink-secondary,#3f4756);font:600 14px var(--font-text,system-ui, sans-serif);cursor:pointer;background:0 0;padding:0 16px;transition:border-color .12s,color .12s}.fc-exitbtn:hover{border-color:var(--color-status-danger,#e5484d);color:var(--color-status-danger,#e5484d)}.fc-crumb{color:var(--color-ink-tertiary,#6b7280);align-items:center;gap:8px;margin-bottom:20px;font-size:14px;display:flex}.fc-crumb button,.fc-crumb a{font:600 14px var(--font-text,system-ui, sans-serif);color:var(--color-lang-purple,#7c52d4);cursor:pointer;background:0 0;border:none;align-items:center;gap:6px;text-decoration:none;display:inline-flex}.fc-hero{grid-template-columns:auto minmax(0,1.08fr) minmax(0,.92fr);align-items:start;gap:32px;display:grid}@media (width<=1023px){.fc-hero{grid-template-columns:auto minmax(0,1fr)}.fc-hero .fc-artcol{grid-column:1/-1;max-width:420px}}@media (width<=767px){.fc-hero{grid-template-columns:1fr}}.fc-eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--color-lang-purple,#7c52d4);font-size:13px;font-weight:700}.fc-decktitle{font-family:var(--font-display,"Inter Display", sans-serif);letter-spacing:-.02em;margin-top:8px;font-size:36px;font-weight:800;line-height:1.08}.fc-decksub{color:var(--color-ink-tertiary,#6b7280);max-width:44ch;margin-top:12px;font-size:16px}.fc-sesscard{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-app,#fff);margin-top:24px;padding:24px}.fc-sesstop{grid-template-columns:1fr auto;align-items:start;gap:16px;display:grid}.fc-sesslabel{letter-spacing:-.01em;font-size:18px;font-weight:700}.fc-sesshint{color:var(--color-ink-tertiary,#6b7280);margin-top:2px;font-size:13px}.fc-chiprow{flex-wrap:wrap;gap:12px;margin-top:16px;display:flex}.fc-chip{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);min-width:64px;min-height:44px;color:var(--color-ink-primary,#0b0d12);font:600 16px var(--font-text,system-ui, sans-serif);cursor:pointer;background:0 0;padding:0 20px;transition:border-color .12s,background-color .12s,color .12s}.fc-chip:hover{border-color:var(--color-lang-purple,#7c52d4)}.fc-chip[aria-pressed=true]{background:var(--color-lang-purple,#7c52d4);border-color:var(--color-lang-purple,#7c52d4);color:#fff}.fc-hrule{background:var(--color-border-subtle,#e5e8ee);height:1px;margin:20px 0}.fc-mline{color:var(--color-ink-secondary,#3f4756);flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;display:flex}.fc-mline b{color:var(--color-ink-primary,#0b0d12);font-weight:700}.fc-tierchip{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);color:var(--color-ink-tertiary,#6b7280);padding:4px 10px;font-size:12px;font-weight:700}.fc-tierchip[data-tier=bronze]{color:#b0622b;background:#f6ece6;border-color:#b0622b}.fc-tierchip[data-tier=silver]{color:#55627a;background:#ebecef;border-color:#55627a}.fc-tierchip[data-tier=gold]{color:#926f00;background:#fdf3d6;border-color:#926f00}.fc-delta{color:var(--color-ink-tertiary,#6b7280);font-size:13px}.fc-mtrack{border-radius:var(--r-btn);background:var(--color-bg-muted,#eef1f6);height:8px;margin-top:12px;overflow:hidden}.fc-mfill{background:var(--color-lang-purple,#7c52d4);border-radius:var(--r-btn);height:100%;transition:width .32s cubic-bezier(.16,1,.3,1);display:block}.fc-ctarow{flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;display:flex}.fc-fair{color:var(--color-ink-tertiary,#6b7280);margin-top:16px;font-size:12px}.fc-deckart{aspect-ratio:1;border-radius:var(--r-img);background:var(--color-bg-muted,#eef1f6);border:1px solid var(--color-border-subtle,#e5e8ee);width:100%;overflow:hidden}.fc-deckart img{object-fit:cover;width:100%;height:100%;display:block}.fc-artstub{text-align:center;width:100%;height:100%;color:var(--color-ink-tertiary,#6b7280);place-items:center;padding:20px;font-size:12px;line-height:1.5;display:grid}.fc-artcap{color:var(--color-ink-tertiary,#6b7280);text-align:right;margin-top:12px;font-size:12px}.fc-sechead{justify-content:space-between;align-items:baseline;gap:16px;margin:64px 0 16px;display:flex}.fc-sechead h2{letter-spacing:-.01em;font-size:22px;font-weight:700}.fc-cap{color:var(--color-ink-tertiary,#6b7280);font-size:14px}.fc-link{font:600 14px var(--font-text,system-ui, sans-serif);color:var(--color-lang-purple,#7c52d4);cursor:pointer;background:0 0;border:none;padding:4px 0;text-decoration:none}.fc-link:hover{text-decoration:underline}.fc-listcard{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-app,#fff);overflow:hidden}.fc-wrow{grid-template-columns:1.5fr .8fr .4fr 1.2fr auto auto;align-items:center;gap:16px;min-height:52px;padding:12px 20px;display:grid}.fc-wrow+.fc-wrow{border-top:1px solid var(--color-border-subtle,#e5e8ee)}.fc-wrow:hover{background:var(--color-bg-subtle,#f7f8fa)}@media (width<=1023px){.fc-wrow{grid-template-columns:1.3fr .6fr .4fr auto auto}.fc-wrow .fc-gloss{display:none}}.fc-wname{font-size:16px;font-weight:700}.fc-pos{color:var(--color-ink-tertiary,#6b7280);font-size:13px;font-style:italic}.fc-cefr{color:var(--color-lang-purple,#7c52d4);font-size:13px;font-weight:700}.fc-gloss{color:var(--color-ink-secondary,#3f4756);font-size:14px}.fc-state{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);color:var(--color-ink-tertiary,#6b7280);white-space:nowrap;padding:3px 9px;font-size:12px;font-weight:700}.fc-state[data-s=mastered]{color:var(--color-status-success,#15c8a0);border-color:var(--color-status-success,#15c8a0);background:color-mix(in srgb, var(--color-status-success,#15c8a0) 10%, #fff)}.fc-state[data-s=learning]{color:var(--color-lang-purple,#7c52d4);border-color:var(--color-lang-purple,#7c52d4);background:color-mix(in srgb, var(--color-lang-purple,#7c52d4) 10%, #fff)}.fc-state[data-s=due]{color:var(--color-status-warning,#f5b400);border-color:var(--color-status-warning,#f5b400);background:color-mix(in srgb, var(--color-status-warning,#f5b400) 10%, #fff)}.fc-ib{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);width:36px;min-width:36px;height:36px;color:var(--color-lang-purple,#7c52d4);cursor:pointer;background:0 0;place-items:center;display:grid}.fc-ib:hover{border-color:var(--color-lang-purple,#7c52d4)}.fc-toolbar{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;display:flex}.fc-searchbar{border:1px solid var(--color-border-default,#d6dae2);border-radius:var(--r-btn);width:340px;max-width:100%;height:44px;color:var(--color-ink-tertiary,#6b7280);align-items:center;gap:12px;padding:0 16px;display:flex}.fc-searchbar input{font:500 14px var(--font-text,system-ui, sans-serif);color:var(--color-ink-primary,#0b0d12);background:0 0;border:none;outline:none;width:100%}.fc-spacer{flex:1}.fc-selectish{border-radius:var(--r-card);border:1px solid var(--color-border-default,#d6dae2);min-height:40px;color:var(--color-ink-secondary,#3f4756);font:600 13px var(--font-text,system-ui, sans-serif);cursor:pointer;background:0 0;align-items:center;gap:6px;padding:0 16px;display:inline-flex}.fc-selectish:hover{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4)}.fc-bandrow{flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px;display:flex}.fc-bandchip{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);min-height:40px;color:var(--color-ink-secondary,#3f4756);font:600 13px var(--font-text,system-ui, sans-serif);cursor:pointer;background:0 0;padding:0 16px}.fc-bandchip[aria-pressed=true]{background:var(--color-lang-purple,#7c52d4);border-color:var(--color-lang-purple,#7c52d4);color:#fff}.fc-emptybox{border:1px dashed var(--color-border-default,#d6dae2);border-radius:var(--r-card);text-align:center;flex-direction:column;align-items:center;gap:12px;padding:48px 32px;display:flex}.fc-emptybox h3{font-size:18px;font-weight:700}.fc-emptybox p{color:var(--color-ink-tertiary,#6b7280);font-size:14px}.fc-gamegrid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media (width<=1023px){.fc-gamegrid{grid-template-columns:1fr}}.fc-gamecard{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-app,#fff);cursor:pointer;flex-direction:column;gap:12px;padding:24px;transition:border-color .2s;display:flex}.fc-gamecard:hover{border-color:var(--color-border-default,#d6dae2)}.fc-gamecard[data-blocked=true]{opacity:.72}.fc-gtile{border-radius:var(--r-btn);background:var(--color-lang-purple,#7c52d4);color:#fff;place-items:center;width:56px;height:56px;display:grid}.fc-gtiles{border-radius:var(--r-btn);background:var(--color-lang-purple,#7c52d4);color:#fff;place-items:center;width:48px;height:48px;display:grid}.fc-gname{letter-spacing:-.01em;font-size:18px;font-weight:700}.fc-gmeta{color:var(--color-ink-tertiary,#6b7280);font-size:14px;line-height:1.5}.fc-gnote{color:var(--color-status-warning,#f5b400);font-size:12px;font-weight:600}.fc-gamerow{grid-template-columns:48px 1fr auto;align-items:center;gap:16px;padding:16px 20px;display:grid}.fc-gamerow+.fc-gamerow{border-top:1px solid var(--color-border-subtle,#e5e8ee)}.fc-prewrap{grid-template-columns:1fr auto;align-items:start;gap:32px;max-width:760px;margin:0 auto;display:grid}@media (width<=1023px){.fc-prewrap{grid-template-columns:1fr}}.fc-prepanel{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-app,#fff);padding:40px 32px}.fc-configbox{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-subtle,#f7f8fa);color:var(--color-ink-secondary,#3f4756);margin-top:24px;padding:20px;font-family:ui-monospace,monospace;font-size:12px;line-height:1.8;overflow-x:auto}.fc-configbox b{color:var(--color-lang-purple,#7c52d4)}.fc-progwrap{max-width:calc(var(--cardw,620px) + var(--rail,200px) + 40px);text-align:center;margin:0 auto 32px}.fc-progcount{color:var(--color-lang-purple,#7c52d4);margin-bottom:12px;font-size:14px;font-weight:700}.fc-progtrack{background:var(--color-bg-muted,#eef1f6);border-radius:var(--r-btn);height:4px;overflow:hidden}.fc-progfill{background:var(--color-lang-purple,#7c52d4);border-radius:var(--r-btn);height:100%;transition:width .32s cubic-bezier(.16,1,.3,1);display:block}.fc-stage{grid-template-columns:var(--cardw,620px) var(--rail,200px);justify-content:center;align-items:center;gap:40px;display:grid}@media (width<=1180px){.fc-stage{grid-template-columns:560px 150px}}@media (width<=1023px){.fc-stage{grid-template-columns:1fr;max-width:560px;margin:0 auto}.fc-mrail{display:none}}.fc-mrail{pointer-events:none;-webkit-user-select:none;user-select:none;justify-content:flex-start;align-items:center;display:flex}.fc-minline{pointer-events:none;-webkit-user-select:none;user-select:none}.fc-card{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-app,#fff);flex-direction:column;min-height:560px;padding:32px;animation:.38s cubic-bezier(.16,1,.3,1) both fcFace;display:flex}@keyframes fcFace{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.fc-card.front{cursor:pointer;text-align:center;justify-content:center;align-items:center;gap:20px}.fc-card.front:hover{border-color:var(--color-border-default,#d6dae2)}.fc-card.fc-card-pic{justify-content:space-between;gap:16px}.fc-hero-img-wrap{aspect-ratio:1;border-radius:var(--r-img);background:var(--color-bg-subtle,#f8fafc);border:1px solid var(--color-border-subtle,#e5e8ee);justify-content:center;align-items:center;width:100%;max-width:320px;display:flex;overflow:hidden}.fc-hero-img-wrap img{object-fit:contain;width:100%;height:100%;padding:8px;display:block}.fc-card-brainy{pointer-events:none;z-index:2;-webkit-user-select:none;user-select:none;width:28%;min-width:80px;max-width:140px;position:absolute;bottom:16px;right:16px}.fc-langtag{border-radius:var(--r-btn);background:var(--color-lang-purple,#7c52d4);color:#fff;align-self:flex-start;padding:6px 14px;font-size:13px;font-weight:700}.fc-media{aspect-ratio:1;border-radius:var(--r-btn);background:var(--color-bg-muted,#eef1f6);border:1px solid var(--color-border-subtle,#e5e8ee);width:100%;max-width:400px;overflow:hidden}.fc-media img{object-fit:cover;width:100%;height:100%;display:block}.fc-mediafb{text-align:center;width:100%;height:100%;color:var(--color-ink-secondary,#3f4756);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:20px;font-size:14px;display:flex}.fc-prompt{color:var(--color-ink-secondary,#3f4756);font-size:22px;font-weight:600}.fc-revealrow{color:var(--color-ink-secondary,#3f4756);align-items:center;gap:12px;font-size:16px;font-weight:500;display:flex}.fc-wordbig{font-family:var(--font-display,"Inter Display", sans-serif);letter-spacing:-.035em;font-size:64px;font-weight:800;line-height:1.02}.fc-wordmid{font-family:var(--font-display,"Inter Display", sans-serif);letter-spacing:-.035em;text-align:center;font-size:52px;font-weight:800;line-height:1.05}.fc-ipa{color:var(--color-ink-secondary,#3f4756);font-size:22px;font-weight:500}.fc-posline{color:var(--color-ink-tertiary,#6b7280);font-size:18px;font-style:italic}.fc-wordrow{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;display:flex}.fc-soundbtn{border-radius:var(--r-btn);border:1.75px solid var(--color-lang-purple,#7c52d4);width:44px;min-width:44px;height:44px;color:var(--color-lang-purple,#7c52d4);cursor:pointer;background:0 0;place-items:center;transition:background-color .12s;display:grid}.fc-soundbtn:hover{background:#7c52d414}.fc-soundbtn[data-playing=true]{background:#7c52d429}.fc-soundbtn.plain{border-color:var(--color-ink-secondary,#3f4756);color:var(--color-ink-secondary,#3f4756)}.fc-hr{background:var(--color-border-subtle,#e5e8ee);height:1px;margin:20px 0}.fc-deflabel{letter-spacing:-.01em;font-size:18px;font-weight:700}.fc-defbody{margin-top:8px;font-size:18px;line-height:1.5}.fc-example{color:var(--color-ink-tertiary,#6b7280);margin-top:8px;font-size:16px;font-style:italic;line-height:1.6}.fc-example b{color:var(--color-ink-secondary,#3f4756);font-weight:700}.fc-vi{color:var(--color-lang-purple,#7c52d4);margin-top:8px;font-size:16px;font-weight:600}.fc-block{margin-top:20px}.fc-chipset{flex-wrap:wrap;gap:12px;margin-top:12px;display:flex}.fc-pillchip{border-radius:var(--r-btn);border:1px solid var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4);padding:8px 16px;font-size:14px;font-weight:600}.fc-rating{gap:12px;margin-top:auto;padding-top:24px;display:grid}.fc-ratingrow{gap:12px;display:grid}.fc-ratingrow[data-count="3"]{grid-template-columns:repeat(3,1fr)}.fc-ratingrow[data-count="2"]{grid-template-columns:repeat(2,1fr)}.fc-ratecol{flex-direction:column;align-items:center;gap:8px;display:flex}.fc-hint{color:var(--color-ink-tertiary,#6b7280);align-items:center;gap:4px;min-height:18px;font-size:12px;font-weight:700;transition:color .26s;display:flex}.fc-hint[data-confirmed=true]{color:var(--color-lang-purple,#7c52d4)}.fc-ratebtn{border-radius:var(--r-btn);border:1.5px solid var(--color-border-default,#d6dae2);width:100%;min-height:52px;color:var(--color-ink-secondary,#3f4756);font:700 16px var(--font-text,system-ui, sans-serif);cursor:pointer;background:0 0;transition:background-color .12s,border-color .12s,transform 90ms}.fc-ratebtn:active{transform:translateY(1px)}.fc-ratebtn[data-kind=again]{border-color:var(--color-status-danger,#e5484d);color:var(--color-status-danger,#e5484d)}.fc-ratebtn[data-kind=good]:hover{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4)}.fc-ratebtn[data-kind=easy],.fc-ratebtn[data-kind=gotit]{background:var(--color-lang-purple,#7c52d4);border-color:var(--color-lang-purple,#7c52d4);color:#fff}.fc-ratebtn[data-selected=true]{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4);background:#7c52d41f}.fc-ratebtn[disabled]{opacity:.45;cursor:default}.fc-keys{color:var(--color-ink-tertiary,#6b7280);justify-content:center;align-items:center;gap:12px;font-size:12px;display:flex}.fc-kbd{border:1px solid var(--color-border-default,#d6dae2);border-radius:var(--r-btn);padding:2px 7px;font-size:11px;font-weight:600}.fc-complete{grid-template-columns:minmax(0,1.55fr) minmax(0,.95fr);align-items:start;gap:32px;max-width:1000px;margin:0 auto;display:grid}@media (width<=1023px){.fc-complete{grid-template-columns:1fr}}.fc-panel{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-app,#fff);padding:40px 32px}.fc-headline{font-family:var(--font-display,"Inter Display", sans-serif);letter-spacing:-.02em;margin-top:8px;font-size:28px;font-weight:800;line-height:1.15}.fc-subline{color:var(--color-ink-secondary,#3f4756);margin-top:12px;font-size:16px;line-height:1.55}.fc-breakdown{border-top:1px solid var(--color-border-subtle,#e5e8ee);margin-top:24px}.fc-brow{border-bottom:1px solid var(--color-border-subtle,#e5e8ee);grid-template-columns:auto 1fr auto;align-items:center;gap:16px;padding:16px 0;display:grid}.fc-dot{border-radius:var(--r-btn);width:10px;height:10px}.fc-dot[data-k=again]{background:var(--color-status-danger,#e5484d)}.fc-dot[data-k=good]{background:var(--color-lang-purple,#7c52d4)}.fc-dot[data-k=easy]{background:var(--color-status-success,#15c8a0)}.fc-blabel{color:var(--color-ink-secondary,#3f4756);font-size:14px;font-weight:600}.fc-bval{font-size:16px;font-weight:700}.fc-metric{align-items:baseline;gap:12px;margin-top:24px;display:flex}.fc-metricnum{font-family:var(--font-display,"Inter Display", sans-serif);letter-spacing:-.03em;color:var(--color-lang-purple,#7c52d4);font-size:44px;font-weight:800}.fc-metriclab{color:var(--color-ink-tertiary,#6b7280);max-width:20ch;font-size:14px;line-height:1.4}.fc-sidecard{border:1px solid var(--color-border-subtle,#e5e8ee);border-radius:var(--r-card);background:var(--color-bg-subtle,#f7f8fa);text-align:center;flex-direction:column;align-items:center;gap:16px;padding:24px;display:flex}.fc-streak{gap:8px;display:flex}.fc-sdot{border-radius:var(--r-btn);background:var(--color-bg-muted,#eef1f6);border:1px solid var(--color-border-default,#d6dae2);width:12px;height:12px}.fc-sdot[data-on=true]{background:var(--color-lang-purple,#7c52d4);border-color:var(--color-lang-purple,#7c52d4)}.fc-milestone{border-radius:var(--r-btn);color:#8a6300;background:#f5b4001f;padding:5px 12px;font-size:12px;font-weight:700}.fc-sidectas{gap:12px;width:100%;display:grid}.fc-mastered{color:var(--color-ink-tertiary,#6b7280);font-size:13px;line-height:1.5}.fc-btn{border-radius:var(--r-btn);min-height:48px;font:700 16px var(--font-text,system-ui, sans-serif);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:0 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var(--color-border-subtle,#e5e8ee);box-sizing:border-box;z-index:10;background:#fff;justify-content:space-between;align-items:center;height:54px;padding:10px 24px;display:flex}.session-bar-left{align-items:center;gap:12px;display:flex}.deck-chip{color:var(--color-lang-purple,#7c52d4);border-radius:var(--r-btn);background:#f1ebff;padding:4px 12px;font-size:13px;font-weight:700}.session-progress{color:var(--color-ink-primary,#0b0d12);font-size:14px;font-weight:700}.session-actions{align-items:center;gap:8px;display:flex}.icon-button{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);width:36px;height:36px;color:var(--color-ink-secondary,#3f4756);cursor:pointer;background:#fff;place-items:center;transition:all .15s;display:grid}.icon-button:hover{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4)}.session-exit{border-radius:var(--r-btn);border:1px solid 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(width<=1023px){.stage{grid-template-columns:1fr;overflow-y:auto}.rail{display:none}}.rail{flex-direction:column;gap:14px;min-height:0;display:flex;overflow-y:auto}.rail::-webkit-scrollbar{width:4px}.rail::-webkit-scrollbar-thumb{border-radius:var(--r-btn);background:#d6dae2}.deck-art-frame{aspect-ratio:1;border-radius:var(--r-img);border:1px solid var(--color-border-subtle,#e5e8ee);background:#ede9fe;width:100%;overflow:hidden}.deck-art-img{object-fit:cover;width:100%;height:100%;display:block}.deck-art-placeholder{width:100%;height:100%;color:var(--color-lang-purple,#7c52d4);text-align:center;place-items:center;padding:12px;font-size:14px;font-weight:700;display:grid}.rail-title{color:var(--color-ink-primary,#0b0d12);margin:0;font-size:16px;font-weight:750;line-height:1.3}.rail-path-chip{color:var(--color-ink-tertiary,#6b7280);font-size:12px;font-weight:600}.rail-progress-card,.rail-stat-card,.rail-info-card,.rail-shortcuts-card{border:1px solid 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1fr;gap:8px;display:grid}.stat-label{text-transform:uppercase;color:var(--color-ink-tertiary,#6b7280);margin-bottom:2px;font-size:11px;font-weight:650;display:block}.stat-val{color:var(--color-ink-primary,#0b0d12);font-size:20px;font-weight:800}.rail-info-card{color:var(--color-ink-secondary,#3f4756);flex-direction:column;gap:6px;font-size:12px;display:flex}.info-row{justify-content:space-between;display:flex}.info-row b{color:var(--color-ink-primary,#0b0d12);font-weight:650}.rail-shortcuts-card{color:var(--color-ink-secondary,#3f4756);flex-direction:column;gap:8px;font-size:12px;display:flex}.shortcut-item{align-items:center;gap:8px;display:flex}.stage-center{flex-direction:column;justify-content:center;align-items:center;height:100%;min-height:0;display:flex}.card{border-radius:var(--r-card);border:1px solid var(--color-border-subtle,#e5e8ee);box-sizing:border-box;background:#fff;flex-direction:column;width:100%;max-width:580px;height:100%;max-height:640px;display:flex;overflow:hidden}.card-body{box-sizing:border-box;flex-direction:column;flex:auto;min-height:0;padding:20px 24px;display:flex}.card-body.scroll-y{overflow:hidden}.card-body.scroll-y::-webkit-scrollbar{width:5px}.card-body.scroll-y::-webkit-scrollbar-thumb{border-radius:var(--r-btn);background:#e2e8f0}.card-foot{border-top:1px solid var(--color-border-subtle,#e5e8ee);box-sizing:border-box;background:#fff;flex-shrink:0;padding:14px 20px}.fc-front-body{flex-direction:column;display:flex}.fc-face-header{margin-bottom:var(--space-2,8px);justify-content:flex-start;align-items:center;display:flex}.fc-face-label{font-size:var(--type-label-size,.75rem);letter-spacing:var(--tracking-wide,.06em);text-transform:uppercase;color:var(--color-ink-tertiary,#8b90a0);font-weight:var(--font-weight-medium,500);flex:none}.fc-cue-wrap{flex:auto;justify-content:center;align-items:center;width:100%;min-height:0;display:flex}.fc-cue{aspect-ratio:1;border-radius:var(--r-btn);justify-content:center;align-items:center;gap:var(--space-3,12px);text-align:center;flex-direction:column;max-width:100%;height:100%;display:flex;overflow:hidden}.fc-cue[data-mode=picture]{background:var(--color-bg-muted,#e9ebef);padding:0}.fc-cue[data-mode=picture] .fc-cue-img{width:100%;height:100%;padding:var(--space-4,16px);color:var(--color-ink-tertiary,#8b90a0);font-size:var(--type-caption-size,.6875rem);text-align:center;justify-content:center;align-items:center;display:flex}.fc-cue[data-mode=example],.fc-cue[data-mode=word-first]{background:var(--color-bg-subtle,#f7f8fa);border:1px solid var(--color-border-subtle,#e8eaef);padding:var(--space-5,24px)}.fc-cue-text{text-wrap:balance;max-width:30ch;font-size:var(--type-h3-size,1.1875rem);font-weight:var(--font-weight-medium,500);color:var(--color-ink-primary,#16181d);margin:0;line-height:1.5}.fc-cue-blank{border-bottom:2px solid var(--color-lang-purple,#6d34d6);vertical-align:baseline;white-space:nowrap;min-width:6ch;display:inline-block}.fc-cue-word{font-family:var(--font-display,ui-sans-serif, system-ui, sans-serif);font-size:var(--type-h2-size,1.5rem);font-weight:var(--font-weight-bold,700);color:var(--color-ink-primary,#16181d)}.fc-cue[data-mode=word-first] .fc-cue-text{font-size:var(--type-body-size,.9375rem);color:var(--color-ink-secondary,#5b6070)}.fc-front-info{text-align:center;margin-top:var(--space-3,12px);align-items:center;gap:var(--space-1,4px);flex-direction:column;flex-shrink:0;display:flex}.letter-hint{letter-spacing:2px;color:var(--color-ink-primary,#0b0d12);margin:0 0 6px;font-size:20px}.fc-prompt{font-family:var(--font-display,ui-sans-serif, system-ui, sans-serif);font-size:var(--type-h3-size,1.1875rem);font-weight:var(--font-weight-bold,700);color:var(--color-ink-primary,#16181d);text-align:center;flex:none;margin:0}.fc-hint{color:var(--color-ink-secondary,#5b6070);text-align:center;font-size:var(--type-body-sm-size,.875rem);flex:none;margin:0}.fc-flip-row{justify-content:center;align-items:center;gap:var(--space-2,8px);min-height:44px;color:var(--color-ink-secondary,#5b6070);font-size:var(--type-body-size,.9375rem);font-weight:var(--font-weight-medium,500);display:flex}.fb-top{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.fb-lang{text-transform:uppercase;letter-spacing:.08em;color:var(--color-lang-purple,#7c52d4);font-size:11px;font-weight:800}.fb-flip{border:1px solid var(--color-border-default,#d6dae2);border-radius:var(--r-btn);color:var(--color-ink-secondary,#3f4756);cursor:pointer;background:0 0;align-items:center;gap:4px;padding:3px 10px;font-size:12px;font-weight:600;transition:all .15s;display:inline-flex}.fb-flip:hover{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4)}.fb-meta{gap:6px;display:flex}.fb-word-block{margin-bottom:12px}.fb-word{color:var(--color-ink-primary,#0b0d12);letter-spacing:-.02em;margin:0 0 4px;font-size:28px;font-weight:800}.fb-vi{color:var(--color-lang-purple,#7c52d4);margin:0 0 4px;font-size:16px;font-weight:600}.fb-ipa{color:var(--color-ink-tertiary,#6b7280);margin:0;font-family:monospace;font-size:14px}.fb-audio{border-radius:var(--r-btn);background:#f7f8fa;align-items:center;gap:10px;margin:10px 0 14px;padding:8px 12px;display:flex}.fb-audio-btn{border-radius:var(--r-btn);background:var(--color-lang-purple,#7c52d4);color:#fff;cursor:pointer;border:none;flex-shrink:0;place-items:center;width:32px;height:32px;display:grid}.fb-audio-status{color:var(--color-ink-secondary,#3f4756);flex:1;font-size:12px;font-weight:600}.fb-tracks{gap:4px;display:flex}.fb-track{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);color:var(--color-ink-secondary,#3f4756);cursor:pointer;background:#fff;align-items:center;gap:4px;padding:3px 8px;font-size:11px;font-weight:650;display:inline-flex}.fb-track.playing{border-color:var(--color-lang-purple,#7c52d4);color:var(--color-lang-purple,#7c52d4);background:#f1ebff}.fb-track.played{color:#29a36a;border-color:#29a36a}.fb-track.disabled{opacity:.4;cursor:not-allowed}.fb-track .dot{border-radius:var(--r-btn);background:#9ca3af;width:6px;height:6px}.fb-track.playing .dot{background:var(--color-lang-purple,#7c52d4)}.fb-track.played .dot{background:#29a36a}.fb-track.replay{padding:3px 6px;font-size:14px}.fb-hr{background:var(--color-border-subtle,#e5e8ee);border:none;height:1px;margin:12px 0}.fb-detail{flex-direction:column;gap:8px;display:flex}.fb-sec-label,.fb-ex-label{text-transform:uppercase;letter-spacing:.06em;color:var(--color-ink-tertiary,#6b7280);font-size:11px;font-weight:750}.fb-def{color:var(--color-ink-primary,#0b0d12);margin:0;font-size:15px;line-height:1.5}.fb-ex{color:var(--color-ink-secondary,#3f4756);border-left:3px solid var(--color-lang-purple,#7c52d4);border-radius:var(--r-btn);background:#f7f8fa;margin:0;padding:8px 12px;font-size:14px;font-style:italic;line-height:1.5}.fb-syn-label{color:var(--color-ink-tertiary,#6b7280);font-size:12px;font-weight:700}.fb-syn-chips{flex-wrap:wrap;gap:4px;display:flex}.fb-syn-chip{border-radius:var(--r-btn);color:var(--color-lang-purple,#7c52d4);background:#f1ebff;padding:2px 8px;font-size:12px;font-weight:600}.fc-verdict{grid-template-columns:1fr 1fr;gap:12px;margin-bottom:8px;display:grid}.fc-verdict button{border-radius:var(--r-btn);border:1px solid var(--color-border-default,#d6dae2);cursor:pointer;background:#fff;justify-content:center;align-items:center;min-height:52px;font-size:15px;font-weight:750;transition:all .15s;display:flex}.fc-verdict button.is-again{color:#dc2626;background:#fff5f5;border-color:#fca5a5}.fc-verdict button.is-again:hover,.fc-verdict button.is-again.is-selected{color:#fff;background:#dc2626;border-color:#dc2626}.fc-verdict button.is-known{color:#15803d;background:#f0fdf4;border-color:#86efac}.fc-verdict button.is-known:hover,.fc-verdict button.is-known.is-selected{color:#fff;background:#16a34a;border-color:#16a34a}.fc-keys{color:var(--color-ink-tertiary,#6b7280);justify-content:space-around;margin:0;font-size:12px;display:flex}.res-card{flex-direction:column;display:flex}.res-label{text-transform:uppercase;letter-spacing:.08em;color:var(--color-lang-purple,#7c52d4);margin-bottom:4px;font-size:12px;font-weight:800;display:block}.res-head{margin-bottom:16px}.res-score{letter-spacing:-.02em;color:var(--color-ink-primary,#0b0d12);font-size:36px;font-weight:850}.res-meta{color:var(--color-ink-tertiary,#6b7280);font-size:14px}.res-table{border-collapse:collapse;width:100%;margin-bottom:16px;font-size:14px}.res-table th{text-align:left;border-bottom:1px solid var(--color-border-subtle,#e5e8ee);text-transform:uppercase;color:var(--color-ink-tertiary,#6b7280);padding:8px 10px;font-size:11px;font-weight:750}.res-table td{border-bottom:1px solid var(--color-border-subtle,#e5e8ee);padding:10px}.res-word-cell{align-items:center;gap:8px;display:flex}.res-dot{border-radius:var(--r-btn);width:8px;height:8px}.res-dot.is-known{background:#16a34a}.res-dot.is-again{background:#dc2626}.res-verdict{font-size:12px;font-weight:700}.res-verdict.known{color:#16a34a}.res-verdict.again{color:#dc2626}.res-vi-cell{color:var(--color-ink-secondary,#3f4756)}.res-server-note{color:var(--color-ink-tertiary,#6b7280);border-radius:var(--r-btn);background:#f7f8fa;margin-bottom:8px;padding:10px 12px;font-size:12px}.res-foot{justify-content:flex-end;gap:10px;display:flex}