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minmax(0,1fr)}}.login-switch{margin-top:22px;padding-top:16px;border-top:1px solid var(--rule-soft);font-size:.86rem;color:var(--muted);line-height:1.5}.login-switch .login-link{padding:0 2px}.teacher-layout{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:#07070c;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto;border-right:1px solid rgba(255,255,255,.06)}.sidebar-brand{display:flex;align-items:center;gap:12px;padding:22px 20px;color:#fff;border-bottom:1px solid rgba(255,255,255,.06)}.sidebar-logo-mark{width:34px;height:34px;border-radius:10px;background:var(--grad-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--display);font-size:1.05rem;font-weight:800;flex-shrink:0;letter-spacing:-.04em;box-shadow:0 6px 18px -4px #c4f0424d,inset 0 1px #ffffff40}.sidebar-brand-name{font-family:var(--display);font-size:1.05rem;font-weight:700;color:#fff;letter-spacing:-.025em}.sidebar-nav{display:flex;flex-direction:column;gap:2px;padding:16px 12px;flex:1}.sidebar-nav-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:10px;font-size:.85rem;font-weight:500;color:#ffffff9e;cursor:pointer;transition:all .18s var(--ease);background:transparent;text-align:left;width:100%;letter-spacing:-.005em;position:relative}.sidebar-nav-item:hover{color:#fff;background:#ffffff0d}.sidebar-nav-item.active{color:#fff;font-weight:600;background:#c4f0421f;box-shadow:inset 0 0 0 1px #c4f04247}.sidebar-nav-item.active svg{color:var(--accent);opacity:1}.sidebar-nav-item.active:before{content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);width:3px;height:18px;background:var(--accent);border-radius:0 4px 4px 0}.sidebar-nav-item svg{flex-shrink:0;opacity:.65}.sidebar-nav-item:hover svg,.sidebar-nav-item.active 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var(--ease);font-family:var(--sans);letter-spacing:-.005em;white-space:nowrap;box-shadow:var(--shadow-xs)}.student-back-btn:hover{border-color:var(--indigo);color:var(--indigo);background:var(--indigo-bg);transform:translate(-2px)}.q-dots-scroll{overflow-x:auto;margin-bottom:22px;-webkit-overflow-scrolling:touch}.q-dots{display:flex;gap:6px;padding:4px 0}.q-dot{width:26px;height:26px;border-radius:50%;border:1.5px solid var(--rule);background:var(--white);font-size:.62rem;font-weight:700;font-family:var(--mono);cursor:pointer;transition:all .18s var(--ease);flex-shrink:0}.q-dot.dot-correct{background:var(--green);border-color:var(--green);color:#fff}.q-dot.dot-wrong{background:var(--red);border-color:var(--red);color:#fff}.q-dot.dot-current{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:0 0 0 3px 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var(--rule);font-weight:600;letter-spacing:-.005em}.q-diff{font-family:var(--sans);font-size:.72rem;padding:4px 10px;border-radius:999px;font-weight:600;letter-spacing:-.005em;border:1px solid}.diff-easy{background:var(--green-lt);color:var(--green);border-color:var(--green-lt)}.diff-medium{background:var(--amber-lt);color:var(--amber);border-color:var(--amber-lt)}.diff-hard{background:var(--red-lt);color:var(--red);border-color:var(--red-lt)}.q-image-wrap{margin:18px 0;border-radius:var(--radius);overflow:hidden;background:var(--bg-2);border:1px solid var(--rule-soft)}.q-image{width:100%;height:auto;display:block}.q-text{font-size:1.05rem;line-height:1.7;color:var(--ink);margin-bottom:24px;letter-spacing:-.01em}.q-timer-wrap{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 8px;border-radius:999px;background:var(--bg-2);border:1px solid var(--rule);transition:all .25s var(--ease);margin-bottom:20px}.q-timer-wrap.warn{border-color:#f59e0b66;background:var(--amber-lt)}.q-timer-wrap.slow{border-color:#ef444466;background:var(--red-lt)}.q-timer-time{font-family:var(--mono);font-size:.85rem;font-weight:600;color:var(--ink-mid);letter-spacing:-.01em}.q-timer-wrap.warn .q-timer-time{color:var(--amber)}.q-timer-wrap.slow .q-timer-time{color:var(--red);animation:timer-pulse .9s ease-in-out infinite}.q-time-taken{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-family:var(--mono);font-size:.8rem;font-weight:600;border:1px solid var(--rule);background:var(--bg-2);color:var(--muted);margin-bottom:20px;letter-spacing:-.01em}.q-time-taken.fast{background:var(--green-lt);border-color:var(--green-lt);color:var(--green)}.q-time-taken.ok{background:var(--amber-lt);border-color:var(--amber-lt);color:var(--amber)}.q-time-taken.slow-t{background:var(--red-lt);border-color:var(--red-lt);color:var(--red)}.q-options{display:grid;gap:10px;margin-bottom:22px}.q-opt{display:flex;align-items:center;gap:16px;padding:16px 20px;border-radius:var(--radius);border:1.5px solid var(--rule);background:var(--white);text-align:left;font-size:.96rem;line-height:1.55;color:var(--ink);width:100%;transition:all .18s var(--ease);cursor:pointer;letter-spacing:-.005em;position:relative}.q-opt:hover:not(:disabled){border-color:var(--accent-line);background:var(--accent-soft);transform:translate(3px);box-shadow:0 4px 12px -2px var(--accent-soft)}.q-opt:disabled{cursor:default;transform:none}.q-opt-label{width:32px;height:32px;border-radius:50%;background:var(--bg-2);border:1px solid var(--rule);display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:.78rem;font-weight:700;color:var(--muted);flex-shrink:0;transition:all .18s var(--ease)}.q-opt:hover:not(:disabled) .q-opt-label{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);transform:scale(1.06)}.q-opt-text{flex:1}.q-opt-correct{border-color:var(--green)!important;background:var(--green-lt)!important}.q-opt-correct .q-opt-label{background:var(--green)!important;border-color:var(--green)!important;color:#fff!important}.q-opt-wrong{border-color:var(--red)!important;background:var(--red-lt)!important}.q-opt-wrong .q-opt-label{background:var(--red)!important;border-color:var(--red)!important;color:#fff!important}.q-frq-wrap{display:flex;gap:12px;margin-bottom:22px;align-items:flex-start}.q-frq-input{flex:1;padding:14px 16px;border:1.5px solid var(--rule);border-radius:var(--radius);font-size:.98rem;color:var(--ink);background:var(--white);outline:none;transition:all .18s var(--ease);letter-spacing:-.005em}.q-frq-input:focus{border-color:var(--indigo);box-shadow:0 0 0 4px var(--indigo-glow)}.q-frq-input:disabled{background:var(--bg-2);color:var(--muted)}.q-feedback{padding:16px 20px;border-radius:var(--radius);font-size:.9rem;line-height:1.65;border:1px solid;animation:fadeIn .3s var(--ease-out);margin-bottom:22px;letter-spacing:-.005em}.q-feedback-correct{background:linear-gradient(135deg,var(--green-lt) 0%,rgba(209,250,229,.6) 100%);border-color:#10b9814d;color:#065f46}.q-feedback-wrong{background:linear-gradient(135deg,var(--red-lt) 0%,rgba(254,226,226,.6) 100%);border-color:#ef44444d;color:#991b1b}.qf-header{font-weight:700;margin-bottom:8px;font-size:.96rem;letter-spacing:-.01em}.qf-explanation{font-size:.88rem;line-height:1.7;opacity:.9}[data-theme=dark] .q-feedback-correct{background:linear-gradient(135deg,#06311b,#0b231a);border-color:#10b98161;color:#c6f6de}[data-theme=dark] .q-feedback-wrong{background:linear-gradient(135deg,#3a1216,#2a1014);border-color:#ef444466;color:#fbd3d3}[data-theme=dark] .q-feedback-correct .qf-header{color:#6ee7b7}[data-theme=dark] .q-feedback-wrong .qf-header{color:#fca5a5}[data-theme=dark] .qf-explanation{opacity:1}[data-theme=dark] .qf-answer-line{color:inherit}.q-nav-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.btn-nav{padding:11px 22px;border-radius:999px;border:1px solid var(--rule);background:var(--white);color:var(--ink-mid);font-size:.88rem;font-weight:500;transition:all .18s var(--ease);letter-spacing:-.005em}.btn-nav:hover:not(:disabled){border-color:var(--indigo);color:var(--indigo);background:var(--indigo-bg)}.btn-nav:disabled{opacity:.35;cursor:default}.btn-primary-pill{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:999px;border:none;background:var(--ink);color:var(--white);font-size:.9rem;font-weight:600;cursor:pointer;font-family:var(--sans);letter-spacing:-.005em;transition:all .18s var(--ease);position:relative;overflow:hidden;isolation:isolate;box-shadow:0 2px 4px #0a0a0f1a,inset 0 1px #ffffff1a}[data-theme=dark] .btn-primary-pill{background:#f4f4f6;color:#0a0a0f}.btn-primary-pill:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--accent);opacity:0;transition:opacity .25s var(--ease);z-index:-1}.btn-primary-pill>*{position:relative;z-index:1}.btn-primary-pill:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg);color:var(--accent-ink)}.btn-primary-pill:hover:before{opacity:1}.pg-setup-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow-sm)}.pg-setup-title{font-family:var(--display);font-size:1.25rem;font-weight:700;color:var(--ink);margin-bottom:28px;letter-spacing:-.03em}.pg-filter-group{margin-bottom:24px}.pg-filter-label{display:block;font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);margin-bottom:12px}.pg-chips{display:flex;flex-wrap:wrap;gap:8px}.pg-chip{padding:8px 16px;border-radius:999px;font-size:.82rem;border:1px solid var(--rule);background:var(--white);color:var(--muted);cursor:pointer;transition:all .18s var(--ease);font-weight:500;letter-spacing:-.005em}.pg-chip:hover{border-color:var(--indigo);color:var(--indigo);background:var(--indigo-bg)}.pg-chip.active{border-color:var(--indigo);color:var(--white);background:var(--indigo);font-weight:600;box-shadow:0 4px 12px -2px var(--indigo-glow)}.no-work{text-align:center;padding:80px 24px;color:var(--muted);animation:fadeIn .3s var(--ease-out)}.no-work .nw-icon{font-size:3.5rem;margin-bottom:20px;display:block;opacity:.8}.no-work h3{font-family:var(--display);font-size:1.4rem;font-weight:700;color:var(--ink);margin-bottom:10px;letter-spacing:-.03em}.no-work p{font-size:.92rem;color:var(--muted);max-width:380px;margin:0 auto;line-height:1.6}.empty-state-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-xl);padding:48px 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rgba(255,255,255,.06)}.analytics-hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--slip-dark);z-index:-1}.analytics-hero:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(120% 90% at 100% 0%,rgba(196,240,66,.12) 0%,transparent 46%);z-index:-1;pointer-events:none}.analytics-hero-score{flex-shrink:0;text-align:center}.analytics-hero-score .big-pct{font-family:var(--display);font-size:3.6rem;font-weight:800;line-height:1;letter-spacing:-.05em;color:var(--accent)}.analytics-hero-score .big-label{font-size:.74rem;text-transform:uppercase;letter-spacing:.14em;opacity:.65;margin-top:6px;font-family:var(--mono);font-weight:500}.analytics-hero-info{flex:1}.analytics-hero-info h3{font-family:var(--display);font-size:1.4rem;font-weight:700;margin-bottom:8px;letter-spacing:-.03em}.analytics-hero-info p{font-size:.92rem;opacity:.78;line-height:1.6;max-width:420px;letter-spacing:-.005em}.analytics-hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}.analytics-hero-chip{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;font-size:.78rem;font-weight:500;background:#ffffff14;color:#fff;border:1px solid rgba(255,255,255,.14);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);letter-spacing:-.005em}.analytics-section{margin-bottom:36px}.analytics-section-title{font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.14em;color:var(--muted);margin-bottom:16px;display:flex;align-items:center;gap:10px;font-family:var(--mono)}.analytics-section-title:before{content:"";display:block;width:3px;height:14px;border-radius:2px;background:var(--grad-accent)}.analytics-stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:8px}.an-card{position:relative;background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-lg);padding:20px 16px 18px;text-align:center;box-shadow:var(--shadow-xs);overflow:hidden;transition:all .2s var(--ease)}.an-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--rule)}.an-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:var(--radius-lg) var(--radius-lg) 0 0}.an-card.ac-blue:before{background:linear-gradient(90deg,var(--indigo),var(--violet))}.an-card.ac-green:before{background:linear-gradient(90deg,var(--green),#34D399)}.an-card.ac-red:before{background:linear-gradient(90deg,var(--red),#F87171)}.an-card.ac-navy:before{background:linear-gradient(90deg,var(--ink),var(--ink-mid))}.an-card.ac-amber:before{background:linear-gradient(90deg,var(--amber),#FBBF24)}.an-card.ac-muted:before{background:var(--rule)}.an-card.ac-teal:before{background:linear-gradient(90deg,var(--teal),#22D3EE)}.an-card-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;font-size:1.1rem;background:var(--bg-2)}.an-card .an-num{font-family:var(--display);font-size:1.75rem;font-weight:800;line-height:1;margin-bottom:6px;letter-spacing:-.04em}.an-card .an-key{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-weight:600;font-family:var(--mono)}.score-page{width:100%;max-width:620px;margin:0 auto;padding:40px 24px 100px;animation:fadeIn .3s var(--ease-out)}.score-screen{text-align:center;padding:44px 38px;background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-2xl);box-shadow:var(--shadow);position:relative;overflow:hidden}.score-screen:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent)}.score-emoji{font-size:3rem;margin-bottom:12px;animation:popIn .5s var(--ease-spring);display:block}.score-screen h2{font-family:var(--display);font-size:1.5rem;font-weight:700;color:var(--ink);margin-bottom:6px;letter-spacing:-.035em}.score-screen .score-sub{font-size:.92rem;color:var(--muted);margin-bottom:26px;line-height:1.55}.score-big{font-family:var(--display);font-size:4.2rem;font-weight:800;line-height:1;color:var(--ink);margin-bottom:8px;letter-spacing:-.05em}.score-total{font-size:.9rem;color:var(--muted);margin-bottom:28px;font-family:var(--mono)}.score-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:30px}.score-stat{background:var(--bg-2);border:1px solid var(--rule-soft);border-radius:var(--radius);padding:16px 8px;text-align:center;transition:all .2s var(--ease)}.score-stat:hover{transform:translateY(-2px);border-color:var(--rule);background:var(--white)}.score-stat .s-val{font-family:var(--display);font-size:1.5rem;font-weight:800;display:block;line-height:1;margin-bottom:5px;letter-spacing:-.03em}.score-stat .s-key{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:600;font-family:var(--mono)}.score-stat.c 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var(--ease)}.calc-panel-close:hover{background:var(--rule);color:var(--ink)}.calc-panel-actions{display:flex;align-items:center;gap:4px}.calc-panel-actions .calc-panel-close{display:inline-flex;align-items:center;justify-content:center}.calc-panel-frame{flex:1;border:none;width:100%}@media(max-width:768px){.login-page{grid-template-columns:1fr}.login-hero{display:none}.login-right{padding:56px 24px max(32px,env(safe-area-inset-bottom));align-items:flex-start}.login-form-box{padding:0;width:100%}.login-form-title{font-size:1.7rem}.teacher-layout{grid-template-columns:1fr}.sidebar{display:none}.teacher-main{padding:24px 18px}}@media(max-width:900px){.stat-grid,.results-summary{grid-template-columns:repeat(2,1fr)}}@media(min-width:769px)and (max-width:1024px){.teacher-layout{grid-template-columns:220px 1fr}.sidebar{padding:24px 14px}.nav-label{font-size:.8rem}.teacher-main{padding:30px 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var(--rule);cursor:pointer;font-size:.74rem;color:var(--muted);padding:4px 10px;border-radius:7px;font-family:var(--sans);transition:all .15s var(--ease);letter-spacing:-.005em}.aa-cancel:hover{background:var(--bg-2);color:var(--ink-mid);border-color:var(--muted-2)}.pg-resume-card{background:var(--accent-soft);border:1px solid var(--accent-line);border-radius:16px;padding:16px 18px;display:flex;align-items:center;gap:14px;cursor:pointer;margin-bottom:16px;transition:all .2s var(--ease);animation:fadeUp .35s var(--ease-out)}.pg-resume-card:hover{border-color:var(--accent);box-shadow:0 6px 20px -4px var(--accent-soft);transform:translateY(-1px)}.pg-resume-icon{width:42px;height:42px;border-radius:12px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--accent-ink);font-size:1.1rem;box-shadow:0 4px 12px -2px var(--accent-soft)}.pg-resume-body{flex:1;min-width:0}.pg-resume-title{font-family:var(--display);font-size:.94rem;font-weight:700;color:var(--indigo);margin-bottom:3px;letter-spacing:-.015em}.pg-resume-sub{font-size:.8rem;color:var(--muted)}.pg-resume-arrow{font-size:1.4rem;color:var(--indigo);font-weight:300;line-height:1}.score-retry-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;border:1px solid var(--indigo);color:var(--indigo);background:var(--indigo-bg);font-family:var(--sans);font-size:.88rem;font-weight:600;cursor:pointer;transition:all .2s var(--ease);text-decoration:none;letter-spacing:-.005em}.score-retry-btn:hover{background:var(--indigo);color:var(--white);box-shadow:0 6px 16px -4px var(--indigo-glow);transform:translateY(-1px)}.focus-area-section{padding:0 0 6px}.focus-area-card{display:flex;align-items:center;gap:16px;background:linear-gradient(135deg,#fffbeb,#fef3c7);border:1px solid rgba(245,158,11,.4);border-radius:var(--radius-lg);padding:18px 20px;animation:fadeIn .3s var(--ease-out);box-shadow:0 2px 8px -2px #f59e0b2e}.focus-area-icon{font-size:1.8rem;flex-shrink:0;line-height:1}.focus-area-body{flex:1;min-width:0}.focus-area-label{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:#b45309;margin-bottom:4px;font-family:var(--mono)}.focus-area-topic{font-family:var(--display);font-size:1rem;font-weight:700;color:#78350f;margin-bottom:4px;letter-spacing:-.015em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.focus-area-acc{font-size:.82rem;color:#92400e}.focus-area-btn{padding:10px 18px;background:var(--amber);color:#fff;border:none;border-radius:10px;font-size:.82rem;font-weight:600;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:all .2s var(--ease);font-family:var(--sans);letter-spacing:-.005em;box-shadow:0 4px 12px -2px #f59e0b59}.focus-area-btn:hover{background:#d97706;transform:translateY(-1px);box-shadow:0 6px 16px -2px #f59e0b73}[data-theme=dark] .focus-area-card{background:linear-gradient(135deg,#f59e0b14,#f59e0b24);border-color:#f59e0b52}[data-theme=dark] .focus-area-label{color:#fcd34d}[data-theme=dark] .focus-area-topic{color:#fde68a}[data-theme=dark] .focus-area-acc{color:#fcd34d}[data-theme=dark] .focus-area-btn{background:#d97706}.btn-primary-pill:active{transform:scale(.97) translateY(0)!important}.btn-nav:active:not(:disabled){transform:scale(.97)!important}.btn-sm:active{transform:scale(.96)!important}.pg-chip:active{transform:scale(.95)}.student-back-btn:active{transform:translate(-1px)!important}.q-opt:active:not(:disabled){transform:scale(.985)!important;transition:transform .07s!important}:focus-visible{outline:2px solid var(--indigo);outline-offset:3px;border-radius:6px}button:focus:not(:focus-visible){outline:none}@keyframes labelPop{0%{transform:scale(1)}40%{transform:scale(1.22)}70%{transform:scale(.94)}to{transform:scale(1)}}.q-opt-correct .q-opt-label{animation:labelPop .38s var(--ease-spring)}#pg-count-chips .pg-chip{min-width:54px;text-align:center;font-family:var(--mono);font-weight:700}.danger-zone-card{margin-top:24px;border:1px solid rgba(239,68,68,.32);border-radius:var(--radius-lg);padding:22px 26px;background:linear-gradient(135deg,#ef44440a,#ef444414)}.danger-zone-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid rgba(239,68,68,.18)}.danger-zone-title{font-family:var(--display);font-size:.94rem;font-weight:700;color:var(--red);letter-spacing:-.015em}.danger-zone-sub{font-size:.78rem;color:var(--muted);margin-top:2px}.danger-zone-row{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.danger-zone-action-title{font-size:.88rem;font-weight:600;color:var(--ink);letter-spacing:-.005em}.danger-zone-action-sub{font-size:.78rem;color:var(--muted);margin-top:2px}[data-theme=dark] .danger-zone-card{background:linear-gradient(135deg,#ef44440f,#ef44441a);border-color:#ef44444d}[data-theme=dark] .danger-zone-header{border-color:#ef44442e}@media(max-width:768px){.login-mobile-brand{display:flex}}.sh-cards-wrap .sh-section-label{animation:fadeIn .3s var(--ease-out) .02s both}@media(max-width:768px){.sbn-item.active:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:0;height:3px;border-radius:0 0 4px 4px;background:var(--accent);animation:sbnBar .26s .06s var(--ease-out) forwards}@keyframes sbnBar{to{width:22px}}.quiz-body{padding:20px 16px 26px}.analytics-hero{border-radius:24px}.pg-setup-card{border-radius:22px}.student-subnav{padding:10px 14px;background:var(--white);border-bottom:1px solid var(--rule);position:sticky;top:0;z-index:20;margin-bottom:0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.aa-cancel{padding:6px 14px;font-size:.75rem;border-radius:8px}.score-share-btn,.score-home-btn{padding:15px 18px}.quiz-meta-row{gap:6px}}@media(max-width:380px){.pg-chips{display:grid;grid-template-columns:1fr 1fr}.pg-chip{justify-content:center;text-align:center}}@media(max-width:900px)and (orientation:landscape){.student-header{height:46px}.student-bottom-nav{min-height:52px;padding:3px 8px max(4px,env(safe-area-inset-bottom))}.sbn-label{display:none}.sbn-item{gap:0}.quiz-body{padding:12px 18px 16px}.sh-hero{padding:20px 22px 26px}}@media(max-width:768px)and (orientation:landscape){.student-layout{padding-top:46px;padding-bottom:calc(46px + max(4px,env(safe-area-inset-bottom)))}}.sh-streak-chip{display:inline-flex;align-items:center;gap:6px;background:#ffffff1f;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:5px 14px 5px 10px;margin-top:10px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.sh-streak-flame{line-height:0;color:#fbbf24}.sh-streak-flame svg{width:15px;height:15px;display:block}.sh-streak-count{font-size:1rem;font-weight:800;color:#fff;font-family:var(--mono);line-height:1;letter-spacing:-.02em}.sh-streak-label{font-size:.74rem;color:#ffffffe0;font-weight:500;letter-spacing:-.005em}.sh-streak-freeze{line-height:0;margin-left:2px;color:#7dd3fc}.sh-streak-freeze svg{width:14px;height:14px;display:block}.sh-sr-card{display:flex;align-items:center;gap:13px;background:var(--white);border:1px solid var(--rule);border-radius:14px;padding:14px 16px;margin-top:12px;box-shadow:var(--shadow-xs);transition:border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease)}.sh-sr-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-1px)}.sh-sr-icon{flex-shrink:0;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;background:var(--indigo-bg);color:var(--indigo)}.sh-sr-icon svg{width:20px;height:20px;display:block}.sh-card-red .sh-sr-icon{background:var(--red-lt);color:var(--red)}.sh-sr-body{flex:1;min-width:0}.sh-sr-title{font-family:var(--display);font-size:.94rem;font-weight:700;color:var(--ink);letter-spacing:-.015em}.sh-sr-sub{font-size:.8rem;color:var(--muted);margin-top:2px}.sh-sr-btn{flex-shrink:0;padding:9px 18px;background:var(--grad-accent);color:#fff;border:none;border-radius:10px;font-size:.84rem;font-weight:600;cursor:pointer;font-family:var(--sans);transition:all .18s var(--ease);letter-spacing:-.005em;box-shadow:0 4px 12px -2px var(--indigo-glow)}.sh-sr-btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px -2px var(--indigo-glow)}.sh-badges-wrap{margin-top:24px}.sh-badges-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}.sh-badge{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 8px;border-radius:14px;border:1px solid var(--rule);background:var(--white);text-align:center;cursor:default;transition:transform .18s var(--ease)}.sh-badge-earned{border-color:#f59e0b73;background:linear-gradient(135deg,var(--amber-lt) 0%,rgba(254,243,199,.4) 100%);box-shadow:0 4px 14px -4px #f59e0b40}.sh-badge-locked{opacity:.42;filter:grayscale(.7)}.sh-badge-emoji{font-size:1.7rem;line-height:1}.sh-badge-name{font-size:.72rem;font-weight:600;color:var(--ink);line-height:1.25;letter-spacing:-.005em}.sh-badge-earned:hover{transform:translateY(-2px)}.score-review-btn{display:inline-flex;align-items:center;gap:6px;padding:12px 22px;background:var(--white);color:var(--ink);border:1px solid var(--rule);border-radius:999px;font-size:.88rem;font-weight:500;cursor:pointer;font-family:var(--sans);transition:all .18s var(--ease);letter-spacing:-.005em}.score-review-btn:hover{border-color:var(--indigo);background:var(--indigo-bg);color:var(--indigo)}.rv-wrap{padding-bottom:40px}.rv-intro{display:flex;align-items:flex-start;gap:12px;margin:16px 16px 8px;padding:16px 18px;background:var(--indigo-bg);border:1px solid var(--rule);border-radius:14px}.rv-intro-icon{font-size:1.4rem;flex-shrink:0;margin-top:2px}.rv-intro-title{font-family:var(--display);font-size:.94rem;font-weight:700;color:var(--ink);margin-bottom:4px;letter-spacing:-.015em}.rv-intro-sub{font-size:.8rem;color:var(--muted);line-height:1.5}.rv-card{margin:12px 16px;background:var(--white);border:1px solid 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var(--rule);background:var(--bg-2);font-size:.9rem;line-height:1.5;letter-spacing:-.005em}.rv-opt-correct{border-color:#10b98166;background:var(--green-lt)}.rv-opt-wrong{border-color:#ef444466;background:var(--red-lt)}.rv-opt-neutral{opacity:.55}.rv-opt-label{font-weight:700;font-family:var(--mono);font-size:.82rem;flex-shrink:0;min-width:18px}.rv-opt-text{flex:1}.rv-opt-icon{flex-shrink:0;font-size:1rem}.rv-frq{display:flex;flex-direction:column;gap:8px}.rv-frq-row{display:flex;align-items:center;gap:10px}.rv-frq-label{font-size:.8rem;font-weight:600;min-width:110px}.rv-frq-wrong{color:var(--red)}.rv-frq-correct{color:var(--green)}.rv-frq-val{font-family:var(--mono);font-size:.88rem;padding:4px 11px;border-radius:7px;letter-spacing:-.01em}.rv-frq-wrong-val{background:var(--red-lt);color:var(--red)}.rv-frq-correct-val{background:var(--green-lt);color:var(--green)}.rv-explanation{background:var(--indigo-bg);border:1px solid var(--rule);border-radius:11px;padding:14px 16px;font-size:.88rem;line-height:1.6;letter-spacing:-.005em}.rv-explanation-label{font-size:.74rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--indigo);margin-bottom:6px;font-family:var(--mono)}.rv-explanation-body{color:var(--ink)}.btn-report{background:var(--bg-2);color:var(--ink-mid);border:1px solid var(--rule);border-radius:8px;cursor:pointer;font-family:var(--sans);font-weight:500;transition:all .18s var(--ease);padding:6px 12px;font-size:.82rem;letter-spacing:-.005em}.btn-report:hover{background:var(--indigo);color:var(--white);border-color:var(--indigo)}.score-sat-est{position:relative;margin:0 auto 28px;max-width:400px;background:#07070c;color:#fff;border-radius:16px;padding:18px 24px;text-align:center;overflow:hidden;isolation:isolate;border:1px solid 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var(--accent-soft)}.qf-reveal-btn:active{transform:scale(.97)}.qf-answer-line{margin-top:10px;font-size:.92rem;color:var(--ink);font-family:var(--mono);letter-spacing:-.01em}.q-bookmark-btn{margin-left:auto;background:var(--bg-2);border:1px solid var(--rule);width:34px;height:34px;border-radius:10px;font-size:1.05rem;line-height:1;color:var(--muted);cursor:pointer;transition:all .15s var(--ease);flex-shrink:0;display:flex;align-items:center;justify-content:center}.q-bookmark-btn:hover{border-color:var(--amber);color:var(--amber);background:var(--amber-lt)}.q-bookmark-btn.is-saved{border-color:var(--amber);background:var(--amber-lt);color:var(--amber)}.q-bookmark-btn:active{transform:scale(.92)}.pg-count-input{margin-top:8px;width:140px;padding:9px 12px;border:1px solid var(--rule);border-radius:9px;font-size:.88rem;font-family:var(--mono);background:var(--white);color:var(--ink);outline:none;transition:all .15s var(--ease);letter-spacing:-.01em}.pg-count-input:focus{border-color:var(--indigo);box-shadow:0 0 0 3px var(--indigo-glow)}.btn-nav-skip{margin-left:auto;color:var(--muted);border-style:dashed}.btn-nav-skip:hover{color:var(--ink);border-style:solid}.sat-estimate-card{position:relative;background:#07070c;color:#fff;border-radius:var(--radius-lg);padding:26px;text-align:center;overflow:hidden;isolation:isolate;border:1px solid rgba(255,255,255,.06)}.sat-estimate-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--slip-dark);z-index:-1}.sat-estimate-num{font-family:var(--display);font-size:2.6rem;font-weight:800;letter-spacing:-.05em;line-height:1;color:var(--accent)}.sat-estimate-band{margin-top:8px;font-size:.96rem;font-weight:600;color:#ffffffeb;letter-spacing:-.01em}.sat-dist{margin:18px auto 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11px;border-radius:10px;letter-spacing:-.01em}.trend-up{background:#10b98124;color:#047857}.trend-down{background:#ef444424;color:#b91c1c}.trend-flat{background:var(--rule-soft);color:var(--muted)}.trend-foot{font-size:.72rem;color:var(--muted);margin-top:4px}[data-theme=dark] .trend-up{background:#10b98133;color:#6ee7b7}[data-theme=dark] .trend-down{background:#ef444438;color:#fca5a5}.sat-domain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}@media(min-width:760px){.sat-domain-grid{grid-template-columns:repeat(4,1fr)}}.sat-domain-grid-3{grid-template-columns:repeat(3,1fr)}.sat-domain-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius);padding:16px 14px 14px;text-align:left;transition:all .18s var(--ease)}.sat-domain-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);border-color:var(--rule)}.sd-name{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-family:var(--mono);line-height:1.3}.sd-acc{font-family:var(--display);font-size:1.7rem;font-weight:800;margin-top:8px;line-height:1;letter-spacing:-.04em}.sd-sub{font-size:.74rem;color:var(--muted);margin-top:4px;font-family:var(--mono);letter-spacing:-.01em}.sat-domain-card.sd-strong .sd-acc{color:var(--green)}.sat-domain-card.sd-mid .sd-acc{color:var(--amber)}.sat-domain-card.sd-weak .sd-acc{color:var(--red)}.sat-domain-card.sd-empty .sd-acc{color:var(--muted)}.ttd-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow-xs)}.ttd-hint{font-size:.76rem;color:var(--muted);line-height:1.5;margin-bottom:12px;padding-bottom:10px;border-bottom:1px dashed var(--rule);letter-spacing:-.005em}.ttd-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--rule-soft);font-size:.88rem}.ttd-row:last-child{border-bottom:none}.ttd-name{font-weight:500;color:var(--ink);flex:1;min-width:0;letter-spacing:-.005em}.ttd-n{color:var(--muted);font-weight:400;font-size:.76rem;font-family:var(--mono)}.ttd-stats{display:flex;gap:16px;flex-shrink:0;font-size:.78rem;color:var(--muted);font-family:var(--mono);letter-spacing:-.01em}.ttd-stats strong{color:var(--ink);font-weight:700}.ac-blue .an-card-icon{background:var(--indigo-bg);color:var(--indigo)}.ac-green .an-card-icon{background:var(--green-lt);color:var(--green)}.ac-red .an-card-icon{background:var(--red-lt);color:var(--red)}.ac-navy .an-card-icon{background:var(--indigo-bg);color:var(--indigo)}.ac-amber .an-card-icon{background:var(--amber-lt);color:var(--amber)}.ac-muted .an-card-icon{background:var(--bg-2);color:var(--muted)}.ac-teal 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var(--accent)}.mk-reader-grip{position:absolute;right:10px;top:50%;transform:translateY(-50%);width:28px;height:52px;border-radius:8px;background:var(--accent);box-shadow:var(--shadow);pointer-events:auto;touch-action:none;cursor:grab}.mk-reader-grip:before{content:"";position:absolute;top:14px;right:9px;bottom:14px;left:9px;background:repeating-linear-gradient(to bottom,var(--accent-ink) 0 2px,transparent 2px 6px)}.mk-sheet-box{max-width:520px}.mk-sheet-title{font-family:var(--display);font-size:1.3rem;font-weight:700;letter-spacing:-.03em;margin-bottom:6px;padding-right:44px}.mk-sheet-note{font-size:.8rem;line-height:1.5;color:var(--muted);margin-bottom:14px}.mk-sheet-group+.mk-sheet-group{margin-top:16px}.mk-sheet-h{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding-bottom:6px;border-bottom:1px solid var(--rule)}.mk-sheet-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:8px 0;border-bottom:1px 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