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rgba(124,106,247,.5);background:rgba(124,106,247,.14);color:#a78bfa;font-size:.75rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,border-color .2s;flex-shrink:0}.strike-info-btn:hover{background:rgba(124,106,247,.32);border-color:#7c6af7;color:#fff}.strike-tooltip{display:none;position:relative;width:260px;background:#1a1a2e;border:1.5px solid #7c6af7;border-radius:14px;padding:13px 15px 12px;font-size:.81rem;color:#c4b5fd;line-height:1.65;z-index:820;box-shadow:0 12px 36px rgba(0,0,0,.6),0 0 0 1px rgba(124,106,247,.15);animation:fadeUp .2s ease both}.strike-tooltip.open{display:block}.strike-tooltip strong{color:#f59e0b}.st-arrow{position:absolute;bottom:-7px;right:22px;width:12px;height:12px;background:#1a1a2e;border-right:1.5px solid #7c6af7;border-bottom:1.5px solid #7c6af7;transform:rotate(45deg)}#confettiCanvas{position:fixed;inset:0;z-index:8999;pointer-events:none;width:100%;height:100%}@media(max-width:480px){.strike-float-wrap{bottom:18px;right:14px}.strike-tooltip{width:220px}}.site-footer{width:100%;max-width:880px;display:flex;flex-direction:column;align-items:center}.footer-copy{font-size:.78rem;color:#8aabb8}.footer-bottom .footer-copy{font-size:.78rem;color:#8aabb8}.footer-links{display:flex;gap:18px;flex-wrap:wrap;justify-content:center}.footer-links a{font-size:.8rem;color:var(--muted);text-decoration:none;cursor:pointer;transition:color .2s}.footer-links a:hover{color:var(--accent)}.screen-tip{display:flex;align-items:flex-start;gap:10px;background:rgba(59,130,246,.07);border:1px solid rgba(59,130,246,.18);border-radius:12px;padding:11px 15px;margin-bottom:16px;font-size:.83rem;color:#93c5fd;line-height:1.55}.screen-tip-icon{font-size:1.1rem;flex-shrink:0;margin-top:1px}.screen-tip strong{color:#bfdbfe;display:block;margin-bottom:2px}.badge-section-label{font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);padding:12px 16px 6px;font-weight:700}.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:0 10px 12px}.bdg-card{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 6px;border-radius:12px;text-align:center;border:1.5px solid transparent;transition:border-color .2s;cursor:default}.bdg-card.unlocked{background:rgba(245,158,11,.08);border-color:rgba(245,158,11,.3)}.bdg-card.locked{background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.06);opacity:.45;filter:grayscale(.8)}.bdg-icon{font-size:1.6rem;line-height:1}.bdg-name{font-size:.6rem;font-weight:700;color:var(--text);line-height:1.2;font-family:Arial,sans-serif}.bdg-card.locked .bdg-name{color:var(--muted)}.bdg-sub{font-size:.55rem;color:var(--muted);line-height:1.2}.bdg-prog{font-size:.6rem;font-weight:800;color:#f59e0b;background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.25);border-radius:999px;padding:1px 7px;margin-top:1px;line-height:1.5}.bp-seo-strip{width:100%;max-width:880px;text-align:center;padding:18px 16px 4px;contain:layout}.bp-seo-h1{font-family:Arial,sans-serif;font-size:1.05rem;font-weight:700;color:var(--muted);margin-bottom:5px}.bp-seo-p{font-size:.75rem;color:#93a8c0;line-height:1.5}img:not([width]):not([height]){height:auto;max-width:100%}.mindmap-img,.lightbox-img-wrap img{aspect-ratio:auto;height:auto}.footer-seo-desc{width:100%;max-width:880px;padding:18px 20px 14px;border-top:1px solid var(--border);margin-top:40px}.footer-seo-desc p{font-size:.76rem;color:#8aabb8;line-height:1.7;text-align:center;max-width:820px;margin:0 auto}.footer-bottom{width:100%;max-width:880px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:14px 20px 18px;border-top:1px solid rgba(255,255,255,.04)}.site-footer{width:100%;max-width:880px;display:flex;flex-direction:column;align-items:center;padding:0;contain:layout;min-height:180px}
/* CLS-PREVENTION */
#s-class{contain:layout style paint}
.bp-seo-strip{min-height:62px}
.strike-float-wrap{contain:layout style}
.class-card .emoji,.subject-card .s-emoji,.mode-icon,.learn-icon{display:inline-block;line-height:1}
/* TEXT PROTECTION CSS */
*{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-touch-callout:none}
input,textarea,button,a,[contenteditable="true"],[role="button"]{-webkit-user-select:auto!important;-moz-user-select:auto!important;user-select:auto!important}

.result-wrap{animation:fadeUp .5s ease both}.result-hero{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;text-align:center;margin-bottom:16px}.result-trophy{font-size:4rem;margin-bottom:10px}.result-msg{font-family:Arial,sans-serif;font-size:1.8rem;font-weight:800;color:var(--accent)}.result-score{font-size:1.1rem;color:var(--text);margin-top:6px}.result-percent{font-size:.9rem;color:var(--muted)}.res-list-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;margin-bottom:16px}.res-list-title{font-family:Arial,sans-serif;font-size:1rem;font-weight:700;color:var(--muted);margin-bottom:12px}.res-item{border-bottom:1px solid var(--border);padding:12px 0}.res-item:last-child{border-bottom:none}.res-q-row{display:flex;justify-content:space-between;margin-bottom:4px}.res-q-num{font-size:.79rem;font-weight:700;color:var(--accent2)}.res-mark{font-size:.79rem;color:var(--muted)}.res-q-text{font-size:.91rem;color:var(--text);font-weight:600;margin-bottom:6px}.sol-toggle-btn{display:inline-flex;align-items:center;gap:5px;margin-top:10px;padding:4px 13px;border-radius:999px;border:1px solid rgba(59,130,246,.35);background:rgba(59,130,246,.08);color:#60a5fa;font-size:.76rem;font-weight:700;cursor:pointer;transition:all .18s;font-family:Arial,sans-serif}.sol-toggle-btn:hover{background:rgba(59,130,246,.18);border-color:rgba(59,130,246,.6)}.sol-box{display:none;margin-top:10px;background:#1a2538;border:1px solid rgba(59,130,246,.22);border-radius:12px;padding:12px 16px}.sol-box.open{display:block}.sol-label{font-size:.72rem;font-weight:700;color:#60a5fa;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}.sol-text{font-size:.88rem;color:#cdd8ea;line-height:1.65}.poll-shell{display:flex;flex-direction:column;gap:0;min-height:80vh}.poll-topbar{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.poll-topbar-left{display:flex;flex-direction:column;gap:4px;flex:1}.poll-topbar-label{font-family:Arial,sans-serif;font-size:.88rem;font-weight:700;color:var(--accent)}.poll-progress{height:6px;background:rgba(255,255,255,.07);border-radius:999px;overflow:hidden;max-width:260px}.poll-progress-fill{height:100%;background:linear-gradient(90deg,var(--accent2),var(--accent));border-radius:999px;transition:width .4s ease}.poll-score-live{display:flex;gap:8px;align-items:center;flex-shrink:0}.poll-sc{font-size:.78rem;font-weight:700;padding:3px 10px;border-radius:999px}.poll-sc-c{background:rgba(16,185,129,.15);color:var(--green);border:1px solid rgba(16,185,129,.3)}.poll-sc-w{background:rgba(239,68,68,.15);color:var(--red);border:1px solid rgba(239,68,68,.3)}.poll-qcard{background:var(--card);border:1.5px solid var(--border);border-radius:var(--radius);padding:20px 18px 16px;margin-bottom:14px;animation:fadeUp .3s ease both;transition:border-color .35s}.poll-qcard.answered-correct{border-color:rgba(16,185,129,.55)}.poll-qcard.answered-wrong{border-color:rgba(239,68,68,.45)}.poll-q-meta{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.poll-q-num{font-size:.75rem;font-weight:700;color:var(--accent2);background:rgba(59,130,246,.12);padding:2px 10px;border-radius:999px}.poll-bm-btn{background:transparent;border:1px solid var(--border);border-radius:999px;padding:3px 10px;font-size:.73rem;color:var(--muted);cursor:pointer;transition:all .18s;font-family:Arial,sans-serif}.poll-bm-btn:hover{border-color:var(--accent);color:var(--accent)}.poll-bm-btn.saved{border-color:var(--accent);color:#fbbf24;background:rgba(245,158,11,.12)}.poll-q-text{font-size:1.02rem;font-weight:600;color:var(--text);line-height:1.55;margin-bottom:14px}.poll-options{display:grid;gap:9px}.poll-opt{position:relative;display:flex;align-items:stretch;border-radius:12px;border:1.5px solid var(--border);overflow:hidden;cursor:pointer;transition:border-color .2s;background:transparent;min-height:48px}.poll-opt:hover:not(.locked){border-color:var(--accent2);background:rgba(59,130,246,.05)}.poll-opt.locked{cursor:default}.poll-opt-bar{position:absolute;left:0;top:0;bottom:0;border-radius:10px;transition:width .55s cubic-bezier(.4,0,.2,1);width:0%;z-index:0}.poll-opt.opt-correct .poll-opt-bar{background:rgba(16,185,129,.2)}.poll-opt.opt-wrong .poll-opt-bar{background:rgba(239,68,68,.16)}.poll-opt.opt-neutral .poll-opt-bar{background:rgba(255,255,255,.04)}.poll-opt-lbl{position:relative;z-index:1;width:34px;min-width:34px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.82rem;color:var(--muted);border-right:1px solid var(--border);background:rgba(255,255,255,.03);transition:all .2s;align-self:stretch}.poll-opt.opt-correct .poll-opt-lbl{color:var(--green)}.poll-opt.opt-wrong .poll-opt-lbl{color:var(--red)}.poll-opt.opt-chosen .poll-opt-lbl{color:#fff;background:var(--accent2)}.poll-opt-content{position:relative;z-index:1;flex:1;padding:10px 12px;display:flex;align-items:center;justify-content:space-between;gap:8px}.poll-opt-txt{font-size:.91rem;color:var(--text);line-height:1.4}.poll-opt-icon{font-size:1.1rem;flex-shrink:0;opacity:0;transition:opacity .2s}.poll-opt.opt-correct .poll-opt-icon,.poll-opt.opt-wrong .poll-opt-icon{opacity:1}.poll-feedback{margin-top:11px;border-radius:11px;padding:10px 14px;font-size:.86rem;font-weight:600;display:none;animation:fadeUp .22s ease both;line-height:1.4}.poll-feedback.show{display:block}.poll-feedback.fb-correct{background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.3);color:#6ee7b7}.poll-feedback.fb-wrong{background:rgba(239,68,68,.10);border:1px solid rgba(239,68,68,.25);color:#fca5a5}.poll-expl-btn{margin-top:10px;background:transparent;border:1px solid rgba(59,130,246,.3);border-radius:999px;padding:5px 14px;font-size:.75rem;font-weight:700;color:#60a5fa;cursor:pointer;transition:all .18s;font-family:Arial,sans-serif;display:none;align-items:center;gap:5px}.poll-expl-btn.show{display:inline-flex}.poll-expl-btn:hover{background:rgba(59,130,246,.15)}.poll-expl-box{display:none;margin-top:10px;background:#1a2538;border:1px solid rgba(59,130,246,.2);border-radius:12px;padding:12px 16px;animation:fadeUp .25s ease both}.poll-expl-box.open{display:block}.poll-expl-label{font-size:.68rem;font-weight:700;color:#60a5fa;text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px}.poll-expl-text{font-size:.87rem;color:#cdd8ea;line-height:1.65}.poll-nav{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:2px}.poll-nav-left{display:flex;gap:8px}.poll-skip-btn{background:rgba(255,255,255,.06);border:1.5px solid var(--border);border-radius:999px;padding:9px 18px;font-size:.85rem;font-weight:700;color:var(--muted);cursor:pointer;font-family:Arial,sans-serif;transition:all .18s}.poll-skip-btn:hover{border-color:var(--muted);color:var(--text)}.poll-next-btn{background:linear-gradient(90deg,var(--accent2),#6366f1);color:#fff;border:none;border-radius:999px;padding:10px 26px;font-size:.9rem;font-weight:800;cursor:pointer;font-family:Arial,sans-serif;box-shadow:0 5px 16px rgba(59,130,246,.35);transition:filter .18s;display:flex;align-items:center;gap:6px}.poll-next-btn:hover{filter:brightness(1.1)}.poll-next-btn:disabled{opacity:.4;cursor:default;box-shadow:none;filter:none}.poll-done-btn{background:linear-gradient(90deg,var(--accent),#d97706);color:#111;border:none;border-radius:999px;padding:10px 24px;font-size:.88rem;font-weight:800;cursor:pointer;font-family:Arial,sans-serif;box-shadow:0 5px 16px rgba(245,158,11,.35);transition:filter .18s;display:flex;align-items:center;gap:6px}.poll-done-btn:hover{filter:brightness(1.1)}ing-soon{text-align:center;padding:70px 20px;color:var(--muted)}.coming-soon .big{font-size:4rem;margin-bottom:16px}.coming-soon h2{font-family:Arial,sans-serif;font-size:1.6rem;font-weight:800;color:var(--accent);margin-bottom:10px}.coming-soon p{font-size:.95rem;line-height:1.7;max-width:380px;margin:0 auto 24px}.coming-soon .tag{display:inline-block;padding:5px 16px;border-radius:999px;background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.25);color:var(--accent);font-size:.8rem;font-weight:700}.url-viewer-wrap{width:100%;border-radius:var(--radius);overflow:hidden;background:var(--card);border:1.5px solid var(--border)}.url-viewer-header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:rgba(255,255,255,.03);border-bottom:1px solid var(--border);flex-wrap:wrap;gap:8px}.url-viewer-title{font-family:Arial,sans-serif;font-size:.95rem;font-weight:700;color:var(--accent)}.url-viewer-open{display:inline-flex;align-items:center;gap:5px;padding:5px 14px;background:rgba(59,130,246,.15);border:1px solid rgba(59,130,246,.3);border-radius:999px;color:#60a5fa;font-size:.8rem;font-weight:600;cursor:pointer;text-decoration:none;transition:all .2s}.url-viewer-open:hover{background:rgba(59,130,246,.28);color:#fff}.url-content-frame{width:100%;height:80vh;border:none;display:block;background:#fff}.bp-loading{text-align:center;padding:70px 20px;color:var(--muted)}.bp-loading-dots{display:flex;justify-content:center;align-items:center;gap:8px;margin-bottom:18px}.bp-loading-dots span{width:11px;height:11px;border-radius:50%;background:var(--accent);opacity:.2;animation:bpPulse 1.2s ease-in-out infinite}.bp-loading-dots span:nth-child(2){animation-delay:.2s;background:var(--accent2)}.bp-loading-dots span:nth-child(3){animation-delay:.4s;background:var(--green)}.bp-loading-text{font-family:Arial,sans-serif;font-size:1rem;font-weight:700;color:var(--accent)}.bp-loading-sub{font-size:.78rem;color:var(--muted);margin-top:6px}.url-error{text-align:center;padding:60px 20px;color:var(--muted)}.url-error .big{font-size:3rem;margin-bottom:12px}.url-error p{font-size:.95rem;line-height:1.7;max-width:400px;margin:0 auto 20px}.url-error a{color:var(--accent);text-decoration:none;font-weight:600}.url-error a:hover{text-decoration:underline}.mindmap-wrap{position:relative;border-radius:12px;overflow:visible;background:var(--card);border:1.5px solid var(--border);user-select:none;line-height:0}.mm-skeleton{width:100%;aspect-ratio:16 / 9;min-height:220px;background:rgba(255,255,255,0.06);overflow:hidden;position:relative;animation:none;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:0.88rem;gap:8px;border-radius:12px}.mm-skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.08),transparent);will-change:transform}@media(prefers-reduced-motion:no-preference){.mm-skeleton::after{animation:mmShimmer 1.6s infinite}}.mm-img-error{display:none;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;gap:10px;text-align:center}.mm-img-error .err-icon{font-size:2.6rem}.mm-img-error h3{font-size:0.95rem;color:var(--text)}.mm-img-error p{font-size:0.8rem;color:var(--muted);line-height:1.6;max-width:300px}.mm-img-error code{display:inline-block;margin-top:5px;padding:3px 9px;background:rgba(255,255,255,0.06);border-radius:6px;font-size:0.75rem;color:var(--accent);word-break:break-all}.mindmap-img{display:block;width:100%;height:auto;border-radius:12px;cursor:zoom-in;position:relative;z-index:1;-webkit-user-drag:none;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;-ms-interpolation-mode:nearest-neighbor;transition:opacity 0.2s ease}.mindmap-img:hover{opacity:0.9}.lightbox-overlay{position:fixed;inset:0;z-index:9999;background:rgba(3,5,12,0.97);opacity:0;visibility:hidden;transition:opacity 0.4s ease-in-out,visibility 0.4s ease-in-out;contain:layout size style}.lightbox-overlay.open{opacity:1;visibility:visible}.lightbox-scroll{position:absolute;inset:0;overflow:auto;-webkit-overflow-scrolling:touch;cursor:zoom-out;padding:64px 24px 32px;display:flex;align-items:flex-start;justify-content:center;touch-action:pan-x pan-y pinch-zoom;-ms-touch-action:pan-x pan-y pinch-zoom;contain:layout style}.lightbox-img-wrap{flex-shrink:0}.lightbox-img-wrap img{display:block;width:auto;height:auto;max-width:none;min-width:min(960px,92vw);border-radius:10px;box-shadow:0 28px 90px rgba(0,0,0,.95);-webkit-user-drag:none;user-select:none;touch-action:pinch-zoom;image-rendering:-webkit-optimize-contrast;image-rendering:crisp-edges;-ms-interpolation-mode:nearest-neighbor;transform-origin:top center;transition:opacity 0.4s ease-in-out,transform 0.25s ease;opacity:0}.lightbox-overlay.open .lightbox-img-wrap img{opacity:1}.lightbox-close{position:fixed;top:16px;right:16px;z-index:10001;width:48px;height:48px;border-radius:50%;background:rgba(12,18,35,0.95);border:2px solid var(--accent);color:var(--accent);font-size:1.4rem;font-weight:900;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 24px rgba(0,0,0,.8);transition:background 0.2s ease,color 0.2s ease;line-height:1}.lightbox-close:hover{background:var(--accent);color:#000}.lightbox-label{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:10000;font-family:Arial,sans-serif;font-size:.82rem;color:rgba(232,237,245,0.55);white-space:nowrap;pointer-events:none;max-width:calc(100vw - 140px);overflow:hidden;text-overflow:ellipsis}.lightbox-mobile-hint{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);z-index:10000;background:rgba(8,11,22,0.88);border:1px solid rgba(245,158,11,.3);border-radius:999px;padding:6px 18px;font-size:.72rem;color:var(--accent);pointer-events:none;white-space:nowrap}@media(min-width:640px){.lightbox-mobile-hint{display:none}}.lightbox-img-spinner{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;min-height:240px;color:rgba(232,237,245,.55);font-size:.9rem;font-weight:600}.lightbox-spin-icon{font-size:2.2rem;animation:spin 1s linear infinite;display:block}.mm-dual-action{display:flex;gap:10px;flex-wrap:wrap;padding:14px 0 4px}.mm-action-btn{flex:1;min-width:160px;display:flex;align-items:center;gap:12px;padding:13px 16px;border-radius:14px;cursor:pointer;border:1.5px solid transparent;text-decoration:none;transition:transform .22s cubic-bezier(.34,1.56,.64,1),box-shadow .22s,border-color .22s,background .22s;font-family:Arial,sans-serif;position:relative;overflow:hidden}.mm-action-btn::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.06),transparent);pointer-events:none;border-radius:14px}.mm-zoom-btn{background:linear-gradient(135deg,rgba(59,130,246,.18),rgba(99,102,241,.12));border-color:rgba(59,130,246,.45);color:#93c5fd;box-shadow:0 4px 18px rgba(59,130,246,.15),inset 0 1px 0 rgba(255,255,255,.06)}.mm-zoom-btn:hover{transform:translateY(-5px) scale(1.02);border-color:#60a5fa;background:linear-gradient(135deg,rgba(59,130,246,.32),rgba(99,102,241,.22));box-shadow:0 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.2s;font-family:Arial,sans-serif;margin-top:12px}.bm-btn:hover{background:rgba(245,158,11,.18);border-color:var(--accent)}.bm-btn.saved{background:rgba(245,158,11,.22);border-color:var(--accent);color:#fbbf24}#bm-overlay{display:none;position:fixed;inset:0;z-index:2500;background:rgba(4,7,18,.96);overflow-y:auto;-webkit-overflow-scrolling:touch;padding:20px 16px 40px}#bm-overlay.open{display:block;animation:fadeUp .3s ease both}#bm-shell{max-width:780px;margin:0 auto}#bm-topbar{display:flex;align-items:center;justify-content:space-between;padding:10px 0 16px}#bm-title{font-family:Arial,sans-serif;font-size:1.2rem;font-weight:800;background:linear-gradient(135deg,#f59e0b,#3b82f6);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}#bm-close{width:36px;height:36px;border-radius:50%;border:1.5px solid var(--border);background:transparent;color:var(--muted);font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}#bm-close:hover{border-color:var(--red);color:var(--red)}.bm-count{font-size:.72rem;color:var(--muted);margin-bottom:14px;padding:0 2px}.bm-count span{color:var(--accent);font-weight:700}.bm-card{background:var(--card);border:1.5px solid var(--border);border-radius:16px;padding:16px 18px;margin-bottom:12px;animation:fadeUp .25s ease both}.bm-card.correct{border-left:3px solid var(--green)}.bm-card.wrong{border-left:3px solid var(--red)}.bm-card.unanswered{border-left:3px solid var(--muted)}.bm-card-meta{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap}.bm-tag{font-size:.64rem;font-weight:700;padding:2px 9px;border-radius:999px;background:rgba(255,255,255,.06);color:var(--muted)}.bm-tag.c{background:rgba(16,185,129,.15);color:#34d399}.bm-tag.w{background:rgba(239,68,68,.15);color:#f87171}.bm-q-text{font-size:.9rem;font-weight:600;color:var(--text);line-height:1.5;margin-bottom:10px}.bm-ans-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center;margin-bottom:12px}.bm-pill{padding:3px 11px;border-radius:999px;font-size:.74rem;font-weight:600}.bm-pill.your-c{background:rgba(16,185,129,.15);color:#34d399}.bm-pill.your-w{background:rgba(239,68,68,.15);color:#f87171}.bm-pill.your-u{background:rgba(255,255,255,.06);color:var(--muted)}.bm-pill.correct-ans{background:rgba(59,130,246,.15);color:#60a5fa}.bm-actions{display:flex;gap:8px;flex-wrap:wrap}.bm-action-btn{padding:6px 14px;border-radius:999px;border:none;font-size:.76rem;font-weight:700;cursor:pointer;transition:all .2s;font-family:Arial,sans-serif}.bm-action-btn.remove{background:rgba(239,68,68,.12);color:#f87171;border:1px solid rgba(239,68,68,.25)}.bm-action-btn.remove:hover{background:rgba(239,68,68,.25)}.bm-empty{text-align:center;padding:50px 20px;color:var(--muted)}.bm-empty .big{font-size:3rem;display:block;margin-bottom:10px}.bm-empty p{font-size:.9rem;line-height:1.7}.bm-empty strong{color:var(--accent)}.bm-toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%) translateY(20px);z-index:9600;background:var(--card);border:1.5px solid var(--accent);border-radius:999px;padding:9px 22px;font-size:.82rem;font-weight:700;color:var(--accent);box-shadow:0 6px 24px rgba(0,0,0,.5);opacity:0;transition:opacity .3s,transform .3s;pointer-events:none;white-space:nowrap}.bm-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.seo-nav-toggle{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-radius:10px;cursor:pointer;font-size:.85rem;font-weight:700;color:var(--accent);background:rgba(245,158,11,.07);border:1px solid rgba(245,158,11,.2);margin:4px 8px;transition:background .2s;user-select:none}.seo-nav-toggle:hover{background:rgba(245,158,11,.14)}.seo-nav-toggle-arrow{font-size:.75rem;transition:transform .25s;display:inline-block}.seo-nav-links{display:none;padding:6px 8px 4px;max-height:52vh;overflow-y:auto;overscroll-behavior:contain}.seo-nav-links.open{display:block}.seo-nav-links::-webkit-scrollbar{width:3px}.seo-nav-links::-webkit-scrollbar-track{background:transparent}.seo-nav-links::-webkit-scrollbar-thumb{background:rgba(245,158,11,.3);border-radius:999px}.seo-nav-link{display:block;padding:7px 14px;border-radius:8px;font-size:.8rem;font-weight:600;color:rgba(168,186,207,.75);text-decoration:none;transition:background .18s,color .18s;line-height:1.4}.seo-nav-link:hover{background:rgba(255,255,255,.06);color:var(--text)}

#rprtFab{display:none !important}.rpt-btn{background:rgba(239,68,68,.12);border:1.5px solid rgba(239,68,68,.35);color:#f87171;border-radius:20px;padding:5px 13px;font-size:.78rem;font-weight:700;cursor:pointer;font-family:Arial,sans-serif;transition:background .2s,color .2s,border-color .2s;white-space:nowrap;flex-shrink:0}.rpt-btn:hover{background:rgba(239,68,68,.22);border-color:rgba(239,68,68,.6)}.rpt-btn.reported{background:rgba(16,185,129,.12);border-color:rgba(16,185,129,.4);color:#6ee7b7;cursor:default;pointer-events:none}#rprtToast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(16px);z-index:9700;background:linear-gradient(135deg,#1a1a2e,#1e1c3c);border:1.5px solid rgba(239,68,68,.5);border-radius:16px;padding:11px 22px;font-family:Arial,sans-serif;font-size:.88rem;font-weight:800;color:#fca5a5;box-shadow:0 8px 28px rgba(239,68,68,.25);opacity:0;pointer-events:none;white-space:nowrap;transition:opacity .35s ease,transform .35s ease}#rprtToast.show{opacity:1;transform:translateX(-50%) translateY(0)}@media(max-width:480px){.rpt-btn{font-size:.72rem;padding:4px 10px}}

.fbk-banner{width:100%;max-width:880px;margin:0;padding:10px 16px;display:flex;align-items:center;justify-content:flex-end;gap:10px;border-top:1px solid rgba(255,255,255,.07);min-height:48px;contain:layout}.fbk-banner-text{font-size:.78rem;color:#93a8c0;flex:1}.fbk-banner-btns{display:flex;gap:8px;flex-shrink:0}.fbk-btn{border:none;border-radius:6px;padding:5px 14px;font-size:.78rem;font-weight:600;cursor:pointer;font-family:Arial,sans-serif;transition:opacity .2s;white-space:nowrap}.fbk-btn-short{background:rgba(99,102,241,.15);color:#a5b4fc;border:1px solid rgba(99,102,241,.25)}.fbk-btn-short:hover{opacity:.8}.fbk-overlay{display:none;position:fixed;inset:0;background:rgba(3,6,18,.88);z-index:3000;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px)}.fbk-overlay.open{display:flex;animation:fadeUp .28s ease both}.fbk-modal{background:linear-gradient(160deg,#111827,#0d1f3c);border:1.5px solid rgba(99,102,241,.4);border-radius:24px;width:100%;max-width:420px;padding:32px 28px 28px;position:relative;box-shadow:0 28px 70px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.04);animation:fadeUp .3s ease both;text-align:center}.fbk-modal-close{position:absolute;top:14px;right:16px;background:rgba(255,255,255,.06);border:1.5px solid var(--border);border-radius:50%;color:var(--muted);font-size:.85rem;width:30px;height:30px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.fbk-modal-close:hover{border-color:#ef4444;color:#ef4444}.fbk-modal-emoji{font-size:3rem;margin-bottom:10px;filter:drop-shadow(0 0 12px rgba(99,102,241,.6))}.fbk-modal-title{font-family:Arial,sans-serif;font-size:1.4rem;font-weight:800;color:#e8edf5;margin-bottom:6px}.fbk-modal-sub{font-size:.83rem;color:#93a8c0;line-height:1.55;margin-bottom:22px}.fbk-modal-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:18px}.fbk-form-card{display:flex;flex-direction:column;align-items:center;gap:6px;padding:18px 14px;border-radius:16px;text-decoration:none;cursor:pointer;border:1.5px solid transparent;transition:transform .22s,box-shadow .22s,border-color .22s;position:relative;overflow:hidden}.fbk-form-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:16px 16px 0 0}.fbk-short-card{background:linear-gradient(135deg,rgba(99,102,241,.18),rgba(79,70,229,.1));border-color:rgba(99,102,241,.4)}.fbk-short-card::before{background:linear-gradient(90deg,#6366f1,#818cf8)}.fbk-short-card:hover{transform:translateY(-5px) scale(1.03);border-color:#6366f1;box-shadow:0 12px 32px rgba(99,102,241,.4)}.fbk-long-card{background:linear-gradient(135deg,rgba(245,158,11,.14),rgba(217,119,6,.08));border-color:rgba(245,158,11,.4)}.fbk-long-card::before{background:linear-gradient(90deg,#f59e0b,#fbbf24)}.fbk-long-card:hover{transform:translateY(-5px) scale(1.03);border-color:#f59e0b;box-shadow:0 12px 32px rgba(245,158,11,.3)}.fbk-form-icon{font-size:2rem;line-height:1;filter:drop-shadow(0 2px 6px rgba(0,0,0,.4))}.fbk-form-label{font-family:Arial,sans-serif;font-size:.9rem;font-weight:800;color:#e8edf5}.fbk-short-card .fbk-form-label{color:#a5b4fc}.fbk-long-card .fbk-form-label{color:#fcd34d}.fbk-form-desc{font-size:.72rem;color:var(--muted);line-height:1.4;text-align:center}.fbk-form-arrow{font-size:1.1rem;color:var(--muted);margin-top:2px;transition:transform .2s}.fbk-form-card:hover .fbk-form-arrow{transform:translateX(4px)}.fbk-modal-note{font-size:.75rem;color:#8aabb8;line-height:1.5;padding:10px 14px;background:rgba(255,255,255,.03);border-radius:10px;border:1px solid rgba(255,255,255,.05)}.fbk-modal-note strong{color:#f59e0b}@media(max-width:420px){.fbk-modal-cards{grid-template-columns:1fr}.fbk-banner{flex-direction:column;align-items:flex-start}.fbk-banner-btns{width:100%}.fbk-btn{flex:1;text-align:center}}

.bp-auth-overlay{display:none;position:fixed;inset:0;z-index:4000;background:rgba(3,6,18,.92);backdrop-filter:blur(6px);align-items:center;justify-content:center;padding:20px}.bp-auth-overlay.open{display:flex;animation:fadeUp .28s ease both}.bp-auth-modal{background:linear-gradient(160deg,#111827,#0d1f3c);border:1.5px solid rgba(59,130,246,.35);border-radius:24px;width:100%;max-width:400px;padding:32px 28px 28px;position:relative;box-shadow:0 28px 70px rgba(0,0,0,.75);animation:fadeUp .3s ease both;text-align:center}.bp-auth-close{position:absolute;top:14px;right:16px;background:rgba(255,255,255,.06);border:1.5px solid rgba(255,255,255,.1);border-radius:50%;color:#93a8c0;font-size:.85rem;width:30px;height:30px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.bp-auth-close:hover{border-color:#ef4444;color:#ef4444}.bp-auth-emoji{font-size:2.8rem;margin-bottom:10px;display:block}.bp-auth-title{font-family:Arial,sans-serif;font-size:1.35rem;font-weight:800;color:#e8edf5;margin-bottom:6px}.bp-auth-sub{font-size:.82rem;color:#93a8c0;line-height:1.55;margin-bottom:22px}.bp-google-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px 20px;background:#fff;border:none;border-radius:12px;font-size:.9rem;font-weight:700;color:#1a1a2e;cursor:pointer;transition:box-shadow .2s,transform .2s;font-family:Arial,sans-serif}.bp-google-btn:hover{box-shadow:0 6px 24px rgba(255,255,255,.2);transform:translateY(-2px)}.bp-google-btn:disabled{opacity:.5;cursor:default;transform:none}.bp-google-icon{width:20px;height:20px;flex-shrink:0}.bp-uname-wrap{text-align:left;margin-top:4px}.bp-uname-label{font-size:.78rem;color:#93a8c0;margin-bottom:8px;display:block;letter-spacing:.04em;text-transform:uppercase;font-weight:700}.bp-uname-row{display:flex;align-items:center;background:rgba(255,255,255,.05);border:2px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden;transition:border-color .25s,box-shadow .25s}.bp-uname-row:focus-within{border-color:#3b82f6;box-shadow:0 0 0 4px rgba(59,130,246,.15),0 4px 24px rgba(59,130,246,.12)}.bp-uname-prefix{padding:0 12px;color:#3b82f6;font-size:1rem;font-weight:800;flex-shrink:0;line-height:50px;border-right:2px solid rgba(255,255,255,.08)}.bp-uname-input{flex:1;background:transparent;border:none;outline:none;color:#e8edf5;font-size:1rem;font-family:Arial,sans-serif;padding:0 14px;height:50px;letter-spacing:.01em}.bp-uname-input::placeholder{color:rgba(147,168,192,.4)}.bp-uname-status{font-size:.8rem;margin-top:10px;min-height:22px;font-weight:700;letter-spacing:.01em;display:flex;align-items:center;gap:6px;padding:0 2px;transition:all .2s}.bp-uname-status.ok{color:#10b981}.bp-uname-status.err{color:#ef4444}.bp-uname-status.checking{color:#93a8c0}.bp-uname-rules{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}.bp-uname-rule{font-size:.7rem;color:#93a8c0;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:6px;padding:3px 8px;display:flex;align-items:center;gap:4px}.bp-uname-submit{width:100%;margin-top:18px;padding:14px;background:linear-gradient(90deg,#2563eb,#4f46e5);border:none;border-radius:14px;color:#fff;font-family:Arial,sans-serif;font-size:1rem;font-weight:800;cursor:pointer;transition:transform .2s,box-shadow .2s,filter .2s;box-shadow:0 6px 24px rgba(59,130,246,.35);letter-spacing:.02em}.bp-uname-submit:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 32px rgba(59,130,246,.5);filter:brightness(1.08)}.bp-uname-submit:active:not(:disabled){transform:translateY(0)}.bp-uname-submit:disabled{opacity:.35;cursor:default;box-shadow:none;filter:none;transform:none}#bpUsernameOverlay{background:rgba(3,6,18,.97)!important}#bpUsernameOverlay .bp-auth-modal{max-width:440px;padding:40px 36px 36px;border-color:rgba(59,130,246,.4);box-shadow:0 0 80px rgba(59,130,246,.08),0 32px 80px rgba(0,0,0,.8)}.bp-uname-progress{width:100%;height:3px;background:rgba(255,255,255,.06);border-radius:100px;margin-bottom:28px;overflow:hidden}.bp-uname-progress-bar{height:100%;background:linear-gradient(90deg,#3b82f6,#6366f1);border-radius:100px;transition:width .4s ease}.bp-uname-avatar{width:64px;height:64px;border-radius:50%;border:3px solid rgba(59,130,246,.4);margin:0 auto 16px;display:block;object-fit:cover;box-shadow:0 0 0 6px rgba(59,130,246,.08)}.bp-uname-avatar-placeholder{width:64px;height:64px;border-radius:50%;border:3px solid rgba(59,130,246,.4);margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:2rem;background:linear-gradient(135deg,rgba(59,130,246,.2),rgba(99,102,241,.15));box-shadow:0 0 0 6px rgba(59,130,246,.08)}.bp-uname-greeting{font-size:.82rem;color:#93a8c0;margin-bottom:4px}.bp-uname-step-badge{display:inline-flex;align-items:center;gap:5px;background:rgba(59,130,246,.12);border:1px solid rgba(59,130,246,.25);border-radius:100px;padding:4px 12px;font-size:.72rem;font-weight:700;color:#60a5fa;letter-spacing:.04em;margin-bottom:20px;text-transform:uppercase}.bp-profile-overlay{display:none;position:fixed;inset:0;z-index:3999}.bp-profile-dropdown{display:none;position:fixed;top:58px;right:16px;background:#1a2538;border:1.5px solid rgba(59,130,246,.3);border-radius:16px;padding:14px 16px;min-width:200px;box-shadow:0 16px 48px rgba(0,0,0,.6);z-index:4000;animation:fadeUp .2s ease both}.bp-profile-name{font-family:Arial,sans-serif;font-size:.95rem;font-weight:800;color:#e8edf5;margin-bottom:2px}.bp-profile-email{font-size:.72rem;color:#93a8c0;margin-bottom:12px;word-break:break-all}.bp-profile-divider{height:1px;background:rgba(255,255,255,.07);margin:8px 0}.bp-profile-item{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:8px;cursor:pointer;font-size:.83rem;color:#93a8c0;transition:background .2s}.bp-profile-item:hover{background:rgba(255,255,255,.06);color:#e8edf5}.bp-profile-item.danger:hover{background:rgba(239,68,68,.1);color:#f87171}.bp-auth-error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);border-radius:8px;padding:8px 12px;font-size:.78rem;color:#fca5a5;margin-top:12px;display:none}.bp-auth-error.show{display:block}

.result-user-banner{display:flex;align-items:center;justify-content:center;gap:10px;background:linear-gradient(135deg,rgba(59,130,246,.12),rgba(99,102,241,.08));border:1.5px solid rgba(59,130,246,.3);border-radius:999px;padding:7px 20px;margin-bottom:16px;width:fit-content;margin-left:auto;margin-right:auto;animation:fadeUp .4s ease both}.result-user-avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#3b82f6,#6366f1);display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:800;color:#fff;flex-shrink:0}.result-user-name{font-family:Arial,sans-serif;font-size:.88rem;font-weight:800;color:#93c5fd}.bp-share-score-badge{display:flex;flex-direction:column;align-items:center;gap:12px;margin:0 0 16px 0;background:#1a0d3d;border:2px solid #7c3aed;border-radius:20px;padding:18px 28px 20px;box-shadow:0 0 0 1px rgba(124,58,237,.3),0 8px 32px rgba(124,58,237,.4);animation:bp-badge-pulse 2.2s ease-in-out infinite;text-align:center}.bp-score-badge-top{display:flex;flex-direction:column;align-items:center;gap:6px}.bp-score-badge-label{font-family:Arial,sans-serif;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:#a78bfa;display:block}.bp-score-badge-value{font-family:Arial,sans-serif;font-size:1.7rem;font-weight:900;color:#ffffff;letter-spacing:.02em;display:block;text-shadow:0 0 20px rgba(167,139,250,.8)}.bp-share-hero-btn{animation:bp-share-bounce .8s ease-in-out 1s 3}@keyframes bp-badge-pulse{0%,100%{box-shadow:0 0 0 1px rgba(124,58,237,.3),0 8px 32px rgba(124,58,237,.4)}50%{box-shadow:0 0 0 3px rgba(124,58,237,.5),0 8px 40px rgba(124,58,237,.6)}}@keyframes bp-share-bounce{0%,100%{transform:translateY(0)}40%{transform:translateY(-6px)}70%{transform:translateY(-2px)}}.share-score-btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#7c3aed,#4f46e5);border:none;border-radius:999px;padding:11px 26px;color:#fff;font-family:Arial,sans-serif;font-size:.9rem;font-weight:800;cursor:pointer;box-shadow:0 6px 20px rgba(124,58,237,.45);transition:filter .2s,transform .2s;letter-spacing:.02em}.share-score-btn:hover{filter:brightness(1.12);transform:translateY(-2px)}.share-score-btn:active{transform:translateY(0)}.share-score-btn:disabled{opacity:.5;cursor:default;box-shadow:none;filter:none;transform:none}#bp-share-card{position:fixed;left:-9999px;top:0;width:480px;background:linear-gradient(145deg,#0f1724 0%,#1a2538 50%,#0f1724 100%);border-radius:24px;padding:36px 32px 32px;font-family:Arial,sans-serif;box-sizing:border-box;overflow:hidden}#bp-share-card *{box-sizing:border-box}.bp-share-toast{position:fixed;bottom:90px;left:50%;transform:translateX(-50%) translateY(20px);z-index:9800;background:linear-gradient(135deg,#1a1a2e,#1e1c3c);border:1.5px solid #10b981;border-radius:18px;padding:12px 22px;text-align:center;font-family:Arial,sans-serif;font-size:.88rem;font-weight:800;color:#6ee7b7;box-shadow:0 10px 32px rgba(16,185,129,.3);opacity:0;transition:opacity .35s ease,transform .35s ease;pointer-events:none;white-space:nowrap}.bp-share-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ── Badge Unlock Overlay Animation ── */
@keyframes bpBadgePopIn {
  0%  { opacity:0; transform:scale(.4) rotate(-8deg); }
  60% { transform:scale(1.12) rotate(3deg); }
  80% { transform:scale(.96) rotate(-1deg); }
  100%{ opacity:1; transform:scale(1) rotate(0deg); }
}
@keyframes bpBadgeIconBounce {
  0%,100%{transform:translateY(0) scale(1);}
  30%{transform:translateY(-14px) scale(1.15);}
  60%{transform:translateY(-6px) scale(1.05);}
}
@keyframes bpBadgeBurst {
  0%  { opacity:1; transform:scale(0); }
  70% { opacity:.6; transform:scale(1.4); }
  100%{ opacity:0; transform:scale(1.8); }
}
@keyframes bpRingPulse {
  0%  { box-shadow:0 0 0 0 rgba(245,158,11,.7); }
  70% { box-shadow:0 0 0 24px rgba(245,158,11,0); }
  100%{ box-shadow:0 0 0 0 rgba(245,158,11,0); }
}
@keyframes bpChalSlide {
  from{ opacity:0; transform:translateY(12px); }
  to  { opacity:1; transform:translateY(0); }
}
@keyframes bpChalShake {
  0%,100%{ transform:translateX(0) rotate(0); }
  15%{ transform:translateX(-4px) rotate(-1.5deg); }
  30%{ transform:translateX(4px) rotate(1.5deg); }
  45%{ transform:translateX(-3px) rotate(-1deg); }
  60%{ transform:translateX(3px) rotate(1deg); }
  75%{ transform:translateX(-1px) rotate(-.5deg); }
}
@keyframes bpProgressFill {
  from{ width:0%; }
}
@keyframes bpIconSpin {
  0%  { transform:scale(1) rotate(0deg); }
  50% { transform:scale(1.25) rotate(15deg); }
  100%{ transform:scale(1) rotate(0deg); }
}

/* Challenge Card */
.bp-chal-card {
  background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(59,130,246,.08));
  border:1.5px solid rgba(99,102,241,.4);
  border-radius:20px;
  padding:16px 18px;
  animation:bpChalSlide .4s ease both;
  position:relative;
  overflow:hidden;
}
.bp-chal-card::before {
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,#6366f1,#3b82f6,#f59e0b);
  border-radius:20px 20px 0 0;
}
.bp-chal-header { display:flex;align-items:center;gap:10px;margin-bottom:12px; }
.bp-chal-badge-label {
  font-size:.62rem;text-transform:uppercase;letter-spacing:.12em;
  font-weight:800;color:#818cf8;
  background:rgba(99,102,241,.15);border:1px solid rgba(99,102,241,.3);
  border-radius:999px;padding:2px 9px;
}
.bp-chal-title {
  font-family:Arial,sans-serif;font-size:.95rem;font-weight:800;
  color:#e8edf5;flex:1;line-height:1.3;
}
.bp-chal-exp { font-size:.82rem;color:#93a8c0;margin-bottom:12px;line-height:1.5; }
.bp-chal-list { list-style:none;padding:0;margin:0 0 12px; }
.bp-chal-item {
  display:flex;align-items:center;gap:10px;padding:8px 12px;
  border-radius:11px;margin-bottom:6px;cursor:pointer;
  border:1.5px solid rgba(255,255,255,.07);
  background:rgba(255,255,255,.03);
  transition:border-color .2s,background .2s,transform .15s;
  font-size:.88rem;font-weight:600;color:#e8edf5;
}
.bp-chal-item:hover {
  border-color:#6366f1;background:rgba(99,102,241,.1);
  transform:translateX(4px);
}
.bp-chal-item.completed {
  border-color:rgba(16,185,129,.4);background:rgba(16,185,129,.08);
  color:#6ee7b7;
  text-decoration:none;
}
.bp-chal-item .bp-chal-check {
  width:22px;height:22px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;font-size:.8rem;font-weight:700;
  background:rgba(255,255,255,.06);border:1.5px solid rgba(255,255,255,.15);
  transition:all .2s;
}
.bp-chal-item.completed .bp-chal-check {
  background:rgba(16,185,129,.25);border-color:rgba(16,185,129,.5);color:#10b981;
}
.bp-chal-progress-wrap { margin-top:2px; }
.bp-chal-progress-meta {
  display:flex;justify-content:space-between;
  font-size:.72rem;color:#93a8c0;margin-bottom:5px;
}
.bp-chal-progress-bar {
  height:7px;background:rgba(255,255,255,.07);border-radius:999px;overflow:hidden;
}
.bp-chal-progress-fill {
  height:100%;background:linear-gradient(90deg,#6366f1,#3b82f6);
  border-radius:999px;transition:width .5s ease;
  animation:bpProgressFill .8s ease both;
}
.bp-chal-reward {
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.3);
  border-radius:999px;padding:3px 12px;font-size:.73rem;font-weight:700;color:#fbbf24;
  margin-left:auto;flex-shrink:0;
}
.bp-chal-shake { animation:bpChalShake .6s ease both; }

/* Session milestone badges on results screen */
.bp-session-badges {
  display:flex;gap:10px;flex-wrap:wrap;justify-content:center;
  margin:14px 0 4px;
}
.bp-session-badge {
  display:flex;align-items:center;gap:7px;
  padding:8px 14px;border-radius:999px;
  font-size:.8rem;font-weight:700;
  border:1.5px solid;
  animation:bpChalSlide .5s ease both;
}
.bp-session-badge.s1  { background:rgba(16,185,129,.12);border-color:rgba(16,185,129,.4);color:#6ee7b7; }
.bp-session-badge.s10 { background:rgba(59,130,246,.12);border-color:rgba(59,130,246,.4);color:#93c5fd; }
.bp-session-badge.s25 { background:rgba(139,92,246,.12);border-color:rgba(139,92,246,.4);color:#c4b5fd; }
.bp-session-badge.s50 { background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.4);color:#fbbf24; }
.bp-session-badge.s100{ background:rgba(239,68,68,.12); border-color:rgba(239,68,68,.4); color:#fca5a5; }
.bp-session-badge span:first-child { font-size:1.2rem; }

/* Burst particles */
.bpBurst { position:absolute;border-radius:50%;animation:bpBadgeBurst .7s ease-out both; pointer-events:none; }

/* ═══════════════════════════════════════════════════
   BP AI — Class Card + Tools Screen
═══════════════════════════════════════════════════ */

/* BP AI card in class grid */
.bpai-class-card{
  background:var(--card);
  border:1.5px solid rgba(245,158,11,.55);
  border-radius:var(--radius);
  padding:24px 16px 20px;
  text-align:center;cursor:pointer;
  transition:transform .2s,box-shadow .2s,border-color .2s;
  position:relative;overflow:hidden;isolation:isolate;
}
.bpai-class-card::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 60%,rgba(245,158,11,.07));
  pointer-events:none;
}
.bpai-cc-shimmer{display:none;}
.bpai-class-card:hover{
  transform:translateY(-6px);
  border-color:var(--accent);
  box-shadow:0 16px 40px rgba(0,0,0,.4),0 0 0 1px var(--accent);
}
.bpai-cc-logo{
  display:block;margin:0 auto 10px;border-radius:8px;
  width:40px;height:40px;
  filter:drop-shadow(0 0 8px rgba(245,158,11,.4));
  transition:transform .2s;
}
.bpai-class-card:hover .bpai-cc-logo{transform:scale(1.15) rotate(-5deg);}
.bpai-cc-label{
  font-family:Arial,sans-serif;font-size:1.05rem;font-weight:700;
  color:var(--accent);
}
.bpai-cc-sub{font-size:.75rem;color:var(--muted);margin-top:3px;}

/* BP AI Tools Grid */
.bpai-tools-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  max-width:520px;
  margin:0 auto;
}

/* BP AI Tool Card */
.bpai-tool-card{
  display:block;text-decoration:none;
  background:linear-gradient(135deg,rgba(59,130,246,.1),rgba(245,158,11,.07),rgba(16,185,129,.05));
  border:1.5px solid rgba(59,130,246,.4);
  border-radius:var(--radius);
  padding:24px 22px 20px;
  cursor:pointer;
  transition:transform .2s,box-shadow .2s,border-color .2s;
  position:relative;overflow:hidden;
  text-align:center;
}
.bpai-tool-top-bar{
  position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,#3b82f6,#f59e0b,#10b981);
  border-radius:var(--radius) var(--radius) 0 0;
}
.bpai-tool-shimmer{
  position:absolute;top:0;left:-100%;width:60%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.07),transparent);
  animation:bpaiSweep 3.5s ease-in-out infinite;pointer-events:none;
}
.bpai-tool-card:hover{
  transform:translateY(-7px);
  border-color:rgba(59,130,246,.75);
  box-shadow:0 20px 50px rgba(0,0,0,.5),0 0 0 1px rgba(59,130,246,.45),0 0 28px rgba(59,130,246,.18);
}
.bpai-tool-icon{
  font-size:3rem;display:block;margin-bottom:12px;
  filter:drop-shadow(0 0 12px rgba(59,130,246,.4));
  transition:transform .2s;
}
.bpai-tool-card:hover .bpai-tool-icon{transform:scale(1.15) rotate(-5deg);}
.bpai-tool-name{
  font-family:Arial,sans-serif;font-size:1.25rem;font-weight:800;
  background:linear-gradient(90deg,#60a5fa,#fbbf24,#34d399);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;margin-bottom:8px;
}
.bpai-tool-desc{font-size:.82rem;color:#93a8c0;line-height:1.6;margin-bottom:14px;}
.bpai-tool-pills{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-bottom:16px;}
.bpai-tool-pill{font-size:.65rem;font-weight:700;padding:3px 10px;border-radius:999px;}
.bpai-pill-blue{background:rgba(59,130,246,.15);color:#93c5fd;border:1px solid rgba(59,130,246,.3);}
.bpai-pill-amber{background:rgba(245,158,11,.12);color:#fbbf24;border:1px solid rgba(245,158,11,.3);}
.bpai-pill-green{background:rgba(16,185,129,.12);color:#6ee7b7;border:1px solid rgba(16,185,129,.3);}
.bpai-tool-cta{
  display:inline-block;
  background:linear-gradient(135deg,#3b82f6,#2563eb);
  color:#fff;font-family:Arial,sans-serif;font-size:.85rem;font-weight:700;
  padding:10px 24px;border-radius:999px;
  transition:filter .2s,transform .2s;
  box-shadow:0 6px 18px rgba(59,130,246,.4);
}
.bpai-tool-card:hover .bpai-tool-cta{filter:brightness(1.12);transform:translateY(-1px);}

@media(max-width:768px){
  .bpai-class-card{grid-column:span 1;}
}
@media(max-width:600px){
  .bpai-tool-card{padding:20px 16px 18px;}
  .bpai-tool-name{font-size:1.1rem;}
}