:root{--bg: #F4EFE4;--bg-paper: #FBF7EE;--bg-card: #FFFFFF;--bg-soft: #EFE7D5;--ink: #1F1A14;--ink-mid: #564C3F;--ink-muted: #8A7E6C;--border: #D9CDB6;--border-soft: #E8DEC6;--accent: #6B2C2F;--accent-deep: #4A1D1F;--accent-soft: #F3E4E2;--correct: #2E5F3E;--correct-soft: #E1ECDE;--wrong: #9E3A2E;--wrong-soft: #F2DDD7;--gold: #A77B2A;--gold-soft: #F3E5C4;--ff-serif: Georgia, "Times New Roman", serif;--ff-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--ff-sans);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;padding:0}button:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid 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#00000012}.subject-card.locked{opacity:.72;cursor:not-allowed}.subject-card.disabled{opacity:.55;cursor:not-allowed}.subject-card.disabled .subject-emoji{background:var(--bg-soft);color:var(--ink-muted)}.subject-emoji{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:12px}.subject-card-title{font-family:var(--ff-serif);font-size:19px;font-weight:600;margin-bottom:4px}.subject-card-sub{color:var(--ink-mid);font-size:13px;line-height:1.45;margin-bottom:12px}.subject-card-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--ink-muted)}.lock-pill{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;padding:4px 9px;border-radius:999px;background:var(--gold-soft);color:var(--gold)}.open-pill{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;padding:4px 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var(--border)}.toggle-btn.on{background:var(--correct-soft);color:var(--correct);border-color:var(--correct-soft)}.toggle-btn.off{background:var(--bg-soft);color:var(--ink-muted)}.ico{display:inline-flex;align-items:center;gap:7px}.ico--center{justify-content:center}svg{flex-shrink:0}.app-link{color:var(--accent);font-weight:600;cursor:pointer}.page-pad{padding-top:24px;padding-bottom:40px}.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.muted{color:var(--ink-muted);font-size:13px}