.rst-flashcards-app{--rst-navy:#061A2E;--rst-navy-2:#0B2A47;--rst-red:#C8102E;--rst-gold:#D4A24C;--rst-ink:#15263A;--rst-ink-dim:#51647C;--rst-line:#E3E9F0;--rst-paper:#F7F9FC;max-width:960px;margin:0 auto;padding:24px 16px;font-family:'Source Serif 4',Georgia,serif;color:var(--rst-ink)}.rst-flashcards-shell{background:#fff;border:1px solid var(--rst-line);border-radius:18px;box-shadow:0 14px 40px rgb(6 26 46 / .08);padding:24px;border-top:4px solid var(--rst-gold)}.rst-flashcards-header{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:20px}.rst-flashcards-header h2{margin:6px 0 0;font-size:1.7rem;line-height:1.15;font-weight:700;color:var(--rst-navy)}.rst-flashcards-eyebrow{font-family:'JetBrains Mono',Menlo,monospace;color:var(--rst-red);font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.16em}.rst-flashcards-meta{font-family:'JetBrains Mono',Menlo,monospace;font-size:.78rem;color:var(--rst-ink-dim);text-align:right;white-space:nowrap;min-width:180px}.rst-flashcards-progress{margin-top:8px;height:5px;border-radius:999px;background:var(--rst-line);overflow:hidden}.rst-flashcards-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--rst-gold),#E6BE7A);border-radius:999px;transition:width 0.35s ease}.rst-flashcards-progress-label{margin-top:5px;font-size:.7rem}.rst-flashcards-toolbar{display:grid;grid-template-columns:220px 1fr auto auto;gap:10px;margin-bottom:18px}.rst-flashcards-toolbar select,.rst-flashcards-toolbar input{border:1px solid var(--rst-line);background:var(--rst-paper);border-radius:10px;padding:11px 13px;font-size:.92rem;font-family:inherit;color:var(--rst-ink)}.rst-flashcards-toolbar input:focus,.rst-flashcards-toolbar select:focus{outline:2px solid var(--rst-gold);outline-offset:1px}.rst-flashcards-toolbar button,.rst-flashcards-controls button{font-family:'JetBrains 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var(--rst-gold);border-radius:18px}.rst-flashcards-card-inner{position:relative;width:100%;min-height:320px;transform-style:preserve-3d;transition:transform 0.55s cubic-bezier(.4,.1,.2,1);border-radius:18px}.rst-flashcards-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:18px;padding:24px 26px;display:flex;flex-direction:column;justify-content:space-between;background:radial-gradient(1100px 380px at 85% -10%,rgb(212 162 76 / .18),transparent 60%),linear-gradient(140deg,var(--rst-navy) 0%,var(--rst-navy-2) 100%);color:#fff}.rst-flashcards-face-top{display:flex;justify-content:space-between;align-items:flex-start}.rst-flashcards-card-label{font-family:'JetBrains Mono',Menlo,monospace;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.16em;color:var(--rst-gold)}.rst-flashcards-fav{background:#fff0;border:none;color:rgb(255 255 255 / .55);font-size:1.5rem;line-height:1;cursor:pointer;padding:2px 6px;transition:color 0.15s ease,transform 0.15s ease}.rst-flashcards-fav:hover{color:var(--rst-gold);transform:scale(1.15)}.rst-flashcards-fav.is-active{color:var(--rst-gold)}.rst-flashcards-question{font-size:1.55rem;line-height:1.35;font-weight:600;margin:18px 0}.rst-flashcards-face-bottom{display:flex;flex-direction:column;gap:10px}.rst-flashcards-tags{display:flex;flex-wrap:wrap;gap:8px}.rst-flashcards-tags span{font-family:'JetBrains Mono',Menlo,monospace;background:rgb(255 255 255 / .12);border:1px solid rgb(255 255 255 / .18);padding:6px 10px;border-radius:999px;font-size:.7rem;letter-spacing:.03em}.rst-flashcards-tags span:empty{display:none}.rst-flashcards-hint{font-family:'JetBrains Mono',Menlo,monospace;font-size:.65rem;letter-spacing:.08em;text-transform:uppercase;opacity:.55}.rst-flashcards-controls{display:flex;justify-content:space-between;gap:12px}.rst-flashcards-controls button{flex:1}.rst-flashcards-footer{margin-top:14px;text-align:right}.rst-flashcards-reset{background:none;border:none;font-family:'JetBrains Mono',Menlo,monospace;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:var(--rst-ink-dim);cursor:pointer;text-decoration:underline;text-underline-offset:3px}.rst-flashcards-reset:hover{color:var(--rst-red)}.rst-flashcards-empty{border:1px dashed #CBD5E1;border-radius:18px;padding:32px;text-align:center;color:var(--rst-ink-dim);background:var(--rst-paper);font-style:italic}@media (max-width:700px){.rst-flashcards-header{flex-direction:column}.rst-flashcards-meta{text-align:left}.rst-flashcards-toolbar{grid-template-columns:1fr 1fr}.rst-flashcards-toolbar input{grid-column:1 / -1}.rst-flashcards-question{font-size:1.2rem}.rst-flashcards-card,.rst-flashcards-card-inner{min-height:360px}}