@import"https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap";.nav-rail[data-v-b3a110fb]{position:fixed;top:0;left:0;bottom:0;z-index:95;width:var(--rail-width);display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 0 14px;background:var(--surface);border-right:1px solid var(--border-soft)}.rail-logo[data-v-b3a110fb]{width:40px;height:40px;border-radius:11px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,var(--primary-bright),var(--primary-dim) 70%);color:#fff;font-family:var(--font-display);font-weight:700;font-size:14px;text-decoration:none;margin-bottom:22px;box-shadow:0 6px 16px -4px rgba(var(--primary-rgb),.55)}.rail-nav[data-v-b3a110fb]{flex:1;display:flex;flex-direction:column;gap:4px;width:100%;align-items:center;overflow-y:auto}.rail-item[data-v-b3a110fb]{display:flex;flex-direction:column;align-items:center;gap:5px;width:calc(100% - 16px);padding:10px 4px 9px;border-radius:var(--radius-sm);color:var(--text-faint);text-decoration:none;background:none;border:none;border-left:2px solid transparent;font-family:inherit;cursor:pointer;transition:background .12s,color .12s;flex-shrink:0}.rail-item svg[data-v-b3a110fb]{width:19px;height:19px;flex-shrink:0}.rail-item 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var(--border-strong);font-size:8px;font-weight:700;color:var(--text-dim)}@media (max-width: 700px){.nav-rail[data-v-b3a110fb]{top:auto;bottom:0;left:0;right:0;width:100%;height:var(--rail-height);flex-direction:row;justify-content:space-around;align-items:center;padding:0 4px;border-right:none;border-top:1px solid var(--border-soft)}.rail-logo[data-v-b3a110fb]{display:none}.rail-nav[data-v-b3a110fb]{flex:none;flex-direction:row;width:100%;justify-content:space-around;overflow-x:auto;overflow-y:visible}.rail-item[data-v-b3a110fb]{width:auto;flex:1;padding:8px 2px;border-left:none;border-top:2px solid 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#10131b;--surface-2: #161a24;--surface-3: #1d2230;--border: #262c3b;--border-soft: #1a1f2b;--border-strong: #333b4f;--text: #edeff5;--text-dim: #9aa1b7;--text-faint: #5c6379;--primary: #5b8dd0;--primary-dim: #4a72b0;--primary-bright: #82aee0;--primary-soft: rgba(91, 141, 208, .14);--primary-border: rgba(91, 141, 208, .35);--primary-ink: #0a1626;--primary-rgb: 91, 141, 208;--tutor: #2dd4bf;--tutor-dim: #17a396;--tutor-ink: #06231f;--tutor-soft: rgba(45, 212, 191, .13);--surface-0: #0b0d13;--gold: #e8b93f;--silver: #b9c1cc;--bronze: #c47a3f;--ok: #34d399;--ok-soft: rgba(52, 211, 153, .12);--ok-border: rgba(52, 211, 153, .38);--ok-ink: #062017;--alert: #fb7185;--alert-soft: rgba(251, 113, 133, .12);--alert-border: rgba(251, 113, 133, .38);--alert-ink: #ffb2bd;--warn: #fbbf5b;--warn-soft: rgba(251, 191, 91, .13);--warn-border: rgba(251, 191, 91, .35);--warn-ink: #f7d39a;--font-display: "Space Grotesk", "Segoe UI", sans-serif;--font-body: "Inter", -apple-system, "Segoe UI", 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var(--primary-bright);outline-offset:2px;border-radius:4px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}}code{font-family:var(--font-mono);background:var(--surface-3);color:var(--primary-bright);padding:1px 6px;border-radius:4px;font-size:.9em}button{font-family:inherit}.area-principal{margin-left:var(--rail-width);min-height:100vh}@media (max-width: 700px){.area-principal{margin-left:0!important;padding-bottom:calc(var(--rail-height) + 10px)}}.header-pagina{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:18px clamp(16px,3vw,40px);border-bottom:1px solid var(--border-soft)}.header-pagina-texto h1{font-family:var(--font-display);font-weight:700;font-size:16.5px;margin:0;color:var(--text)}.header-pagina-texto p{font-size:12px;color:var(--text-faint);margin:3px 0 0}.header-pagina-extra{display:flex;align-items:center;gap:12px}.cartao{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.tag-dificuldade{flex-shrink:0;display:inline-flex;align-items:center;font-family:var(--font-mono);font-size:10px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:3px 10px;border-radius:20px}.tag-dificuldade.facil{color:var(--ok);background:var(--ok-soft);border:1px solid var(--ok-border)}.tag-dificuldade.medio{color:var(--warn);background:var(--warn-soft);border:1px solid var(--warn-border)}.tag-dificuldade.dificil{color:var(--alert);background:var(--alert-soft);border:1px solid var(--alert-border)}