:root{--bg:#0b0e0c;--bg-subtle:#101512;--card:#131915;--card-hover:#18201b;--border:#deefd71f;--border-strong:#deefd740;--lime:#c8ff37;--lime-glow:#c8ff3726;--emerald:#34d399;--rose:#f87171;--amber:#fbbf24;--text:#eff3eb;--text-muted:#838e82;--text-dim:#545e53}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;overflow-x:hidden}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;width:100%;min-height:100vh;font-family:DM Sans,-apple-system,BlinkMacSystemFont,sans-serif;line-height:1.5;overflow-x:hidden}a{color:inherit;text-decoration:none}.wrap{max-width:1240px;margin:0 auto;padding:0 28px}.serif{letter-spacing:-.02em;font-family:Instrument Serif,Georgia,serif;font-style:italic;font-weight:400}.mono{font-family:DM Mono,monospace}.eyebrow{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);align-items:center;gap:6px;font:500 .72rem DM Mono,monospace;display:inline-flex}.eyebrow.lime{color:var(--lime)}.app-container{flex-direction:column;min-height:100vh;display:flex}.main-content{flex:1}.nav-header{border-bottom:1px solid var(--border);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);z-index:100;background:#0b0e0ceb;height:74px;position:sticky;top:0}.nav-inner{justify-content:space-between;align-items:center;height:100%;display:flex}.nav-brand{letter-spacing:-.05em;align-items:center;gap:4px;font-size:1.35rem;font-weight:700;display:flex}.nav-brand span{color:var(--lime)}.nav-links{align-items:center;gap:24px;display:flex}.nav-link{color:var(--text-muted);font-size:.86rem;font-weight:500;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--text)}.nav-link.active{color:var(--lime)}.nav-actions{align-items:center;gap:14px;display:flex}.btn{letter-spacing:-.01em;cursor:pointer;border:1px solid #0000;border-radius:100px;justify-content:center;align-items:center;gap:8px;padding:9px 18px;font-family:inherit;font-size:.84rem;font-weight:600;transition:all .2s cubic-bezier(.2,.75,.3,1);display:inline-flex}.btn-primary{background:var(--lime);color:#0b0e0c;border-color:var(--lime)}.btn-primary:hover{background:#d8ff46;border-color:#d8ff46;transform:translateY(-1px)}.btn-secondary{color:var(--text);border:1px solid var(--border);background:#ffffff0a}.btn-secondary:hover{border-color:var(--border-strong);color:#fff;background:#ffffff14}.btn-sm{padding:6px 14px;font-size:.76rem}.btn-lg{padding:13px 26px;font-size:.92rem}.card{background:var(--card);border:1px solid var(--border);border-radius:4px;padding:26px;transition:transform .25s cubic-bezier(.2,.75,.3,1),border-color .2s}.card:hover{border-color:var(--border-strong)}.card-interactive:hover{background:var(--card-hover);transform:translateY(-3px)}.quiz-card-completed{background:linear-gradient(135deg,#10b9810d 0%,#0d130ff2 100%)!important;border-left:3px solid #10b981!important}.quiz-card-completed:hover{border-color:#10b98166 #10b98166 #10b98166 #10b981!important}.grid-2{grid-template-columns:1fr 1fr;gap:18px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.section-label{border-bottom:1px solid var(--border);justify-content:space-between;align-items:flex-end;margin-bottom:28px;padding-bottom:16px;display:flex}.section-label h2{letter-spacing:-.03em;margin-top:4px;font-size:1.35rem;font-weight:600}.section-label span{color:var(--text-muted);font-size:.86rem}.badge{text-transform:uppercase;letter-spacing:.06em;border-radius:100px;align-items:center;gap:6px;padding:4px 10px;font:600 .68rem DM Mono,monospace;display:inline-flex}.badge-lime{color:var(--lime);background:#c8ff371f;border:1px solid #c8ff3740}.badge-emerald{color:var(--emerald);background:#34d3991f;border:1px solid #34d39940}.badge-amber{color:var(--amber);background:#fbbf241f;border:1px solid #fbbf2440}.badge-rose{color:var(--rose);background:#f871711f;border:1px solid #f8717140}.form-group{margin-bottom:20px}.form-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:8px;font:500 .72rem DM Mono,monospace;display:block}.input-field,.select-field,.textarea-field{border:1px solid var(--border);width:100%;color:var(--text);background:#080b09;border-radius:4px;padding:12px 16px;font-family:inherit;font-size:.92rem;transition:border-color .2s,box-shadow .2s}.input-field:focus,.select-field:focus,.textarea-field:focus{border-color:var(--lime);outline:none;box-shadow:0 0 0 2px #c8ff371f}.textarea-field{resize:vertical;min-height:100px}.alert-box{border-radius:4px;align-items:center;gap:10px;margin-bottom:20px;padding:14px 18px;font-size:.88rem;display:flex}.alert-box.error{color:#fca5a5;background:#f871711a;border:1px solid #f871714d}.alert-box.success{color:#6ee7b7;background:#34d3991a;border:1px solid #34d3994d}.arena-hero{border-bottom:1px solid var(--border);padding:70px 0 60px}.arena-hero-headline{letter-spacing:-.05em;max-width:920px;margin:16px 0 24px;font-size:clamp(2.8rem,6.5vw,5.2rem);font-weight:500;line-height:.94}.arena-hero-desc{color:var(--text-muted);max-width:600px;margin-bottom:32px;font-size:1.1rem;line-height:1.55}.arena-stats-strip{border-top:1px solid var(--border);gap:36px;margin-top:40px;padding-top:24px;display:flex}.stat-strip-item{flex-direction:column;gap:2px;display:flex}.stat-strip-num{color:var(--lime);font:700 1.6rem DM Mono,monospace}.stat-strip-label{color:var(--text-muted);text-transform:uppercase;font:500 .74rem DM Mono,monospace}.daily-challenge-card{background:radial-gradient(circle at 100% 0,#c8ff371f,#0b110d 75%);border:1px solid #c8ff3773;border-radius:8px;margin-bottom:48px;padding:32px 36px;position:relative;overflow:hidden;box-shadow:0 12px 36px #00000073}.daily-challenge-grid{grid-template-columns:minmax(0,1fr) 280px;align-items:center;gap:28px;display:grid}.daily-challenge-content{flex-direction:column;gap:12px;min-width:0;display:flex}.daily-challenge-badges{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.daily-challenge-title{letter-spacing:-.025em;color:#fff;word-break:break-word;margin:2px 0 4px;font-size:1.9rem;font-weight:700;line-height:1.25}.daily-challenge-desc{color:var(--text-muted);max-width:640px;margin:0;font-size:.94rem;line-height:1.55}.daily-challenge-meta{flex-wrap:wrap;align-items:center;gap:10px;margin-top:4px;display:flex}.daily-challenge-hud{background:#080b09b3;border:1px solid #c8ff3733;border-radius:8px;flex-direction:column;align-items:stretch;gap:14px;padding:20px;display:flex;box-shadow:inset 0 1px #ffffff0d}.daily-challenge-timer-row{text-align:center;flex-direction:column;gap:6px;display:flex}.daily-challenge-timer-val{color:var(--lime);letter-spacing:.06em;white-space:nowrap;background:#0006;border:1px solid #ffffff14;border-radius:4px;justify-content:center;align-items:center;gap:8px;padding:6px 12px;font-family:DM Mono,monospace;font-size:1.15rem;font-weight:700;display:inline-flex}.daily-challenge-streak-pill{color:#fbbf24;white-space:nowrap;background:#f59e0b1f;border:1px solid #f59e0b59;border-radius:100px;align-items:center;gap:6px;padding:4px 12px;font-family:DM Mono,monospace;font-size:.78rem;font-weight:700;display:inline-flex}.daily-challenge-btn{white-space:nowrap;justify-content:center;align-items:center;gap:8px;width:100%;display:inline-flex}@media (width<=900px){.daily-challenge-grid{grid-template-columns:1fr;gap:22px}.daily-challenge-hud{padding:16px}.daily-challenge-timer-row{text-align:left;flex-direction:row;justify-content:space-between;align-items:center}}@media (width<=600px){.daily-challenge-card{margin-bottom:32px;padding:20px 16px!important}.daily-challenge-title{font-size:1.4rem}.daily-challenge-timer-row{flex-direction:column;align-items:stretch;gap:6px}.daily-challenge-timer-val{padding:6px 8px;font-size:1rem}.daily-challenge-btn{padding:10px 14px;font-size:.88rem}}.exam-chamber-layout{grid-template-columns:1fr 280px;gap:24px;display:grid}.exam-q-prompt{letter-spacing:-.02em;margin:16px 0 32px;font-size:1.4rem;line-height:1.45}.exam-option-card{cursor:pointer!important;text-align:left!important;-webkit-tap-highlight-color:transparent!important;touch-action:manipulation!important;-webkit-user-select:none!important;user-select:none!important;color:#fff!important;background:#151f19!important;border:1px solid #deefd738!important;border-radius:8px!important;align-items:center!important;gap:14px!important;width:100%!important;min-height:56px!important;margin-bottom:12px!important;padding:14px 18px!important;transition:all .15s cubic-bezier(.16,1,.3,1)!important;display:flex!important;box-shadow:0 2px 6px #00000059!important}.exam-option-card .exam-opt-text,.exam-option-card span:not(.exam-opt-badge){color:#fff!important;font-weight:500!important}.exam-opt-badge{width:32px!important;height:32px!important;color:var(--lime)!important;background:#c8ff371f!important;border:1px solid #c8ff3759!important;border-radius:6px!important;flex-shrink:0!important;justify-content:center!important;align-items:center!important;font:700 .88rem DM Mono,monospace!important;transition:all .15s!important;display:flex!important}.exam-option-card:hover:not(:disabled){color:#fff!important;background:#1c2a22!important;border-color:#c8ff378c!important}.exam-option-card:hover:not(:disabled) .exam-opt-text,.exam-option-card:hover:not(:disabled) span:not(.exam-opt-badge){color:#fff!important}.exam-option-card:active:not(:disabled){background:#203127!important;transform:scale(.985)!important}.exam-option-card.selected{border-color:var(--lime)!important;color:#fff!important;background:radial-gradient(circle at 0,#c8ff3738,#18241c)!important;box-shadow:0 0 20px #c8ff3738!important}.exam-option-card.selected .exam-opt-text,.exam-option-card.selected span:not(.exam-opt-badge){color:#fff!important;font-weight:600!important}.exam-option-card.selected .exam-opt-badge{background:var(--lime)!important;color:#080b09!important;border-color:var(--lime)!important}.circular-timer-wrapper{justify-content:center;align-items:center;width:82px;height:82px;display:flex;position:relative}.circular-timer-svg{transform:rotate(-90deg)}.circular-timer-text{color:var(--lime);font:700 .95rem DM Mono,monospace;position:absolute}.score-circle{border:4px solid var(--lime);width:160px;height:160px;box-shadow:0 0 30px var(--lime-glow);background:#c8ff370d;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;margin:0 auto 20px;display:flex}.score-circle.tier-mastery{border-color:var(--lime)}.score-circle.tier-passed{border-color:var(--amber);box-shadow:0 0 30px #fbbf2426}.score-circle.tier-review{border-color:var(--rose);box-shadow:0 0 30px #f8717126}.score-percentage{font:700 2.8rem/1 DM Mono,monospace}.teacher-workbench-grid{grid-template-columns:1.15fr 1fr;gap:24px;display:grid}.simulator-frame{background:#080b09;border:1px solid #c8ff374d;border-radius:4px;padding:24px}.podium-grid{grid-template-columns:1fr 1.15fr 1fr;align-items:flex-end;gap:18px;margin-bottom:36px;display:grid}.podium-card{text-align:center;padding:26px 18px}.podium-card.gold{border-color:var(--lime);background:#17201b;transform:translateY(-10px)}.leaderboard-table{border-collapse:collapse;width:100%}.leaderboard-table th{text-align:left;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border);padding:14px 18px;font:600 .72rem DM Mono,monospace}.leaderboard-table td{border-bottom:1px solid #deefd70f;padding:16px 18px;font-size:.9rem}.leaderboard-table tr:hover td{background:#ffffff05}.app-footer{border-top:1px solid var(--border);color:var(--text-muted);margin-top:80px;padding:40px 0 28px;font-size:.84rem}.footer-inner{justify-content:space-between;align-items:center;display:flex}.nav-level-pill:hover{border-color:var(--lime);background:#c8ff371f}.nav-level-pill-dot{background:var(--lime);width:7px;height:7px;box-shadow:0 0 8px var(--lime);border-radius:50%;flex-shrink:0;display:inline-block}.nav-level-pill-text{color:var(--lime);white-space:nowrap;font-size:.78rem;font-weight:700}.nav-avatar-btn{border:1px solid var(--border);width:38px;height:38px;color:var(--lime);cursor:pointer;background:#c8ff371a;border-radius:50%;justify-content:center;align-items:center;font-weight:700;transition:all .2s;display:flex;position:relative}.nav-avatar-btn:hover{border-color:var(--lime)}.mobile-hamburger-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;background:#ffffff0a;border-radius:6px;justify-content:center;align-items:center;padding:8px 10px;transition:all .2s;display:none}.mobile-hamburger-btn:hover{border-color:var(--lime);color:var(--lime);background:#c8ff3714}.mobile-nav-drawer{display:none}.mobile-drawer-user-card{border:1px solid var(--border);background:#c8ff370d;border-radius:8px;margin-bottom:12px;padding:14px 16px}.mobile-drawer-links{flex-direction:column;gap:8px;display:flex}.mobile-drawer-link{border:1px solid var(--border);color:var(--text);background:#ffffff05;border-radius:6px;justify-content:space-between;align-items:center;padding:13px 16px;font-size:.96rem;font-weight:600;transition:all .2s;display:flex}.mobile-drawer-link.active,.mobile-drawer-link:hover{border-color:var(--lime);color:var(--lime);background:#c8ff3714}.table-responsive{-webkit-overflow-scrolling:touch;width:100%;overflow-x:auto}.profile-stats-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:40px;display:grid}.profile-stat-card{padding:20px}.profile-stat-val{margin-top:4px;font-family:DM Mono,monospace;font-size:1.8rem}.profile-badges-grid{grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:48px;display:grid}.profile-badge-card{padding:20px}.exam-question-card{padding:28px}.exam-briefing-card{padding:32px}.exam-briefing-title{font-size:clamp(1.6rem,5vw,2.3rem)}.exam-map-card{padding:20px}.formatted-q-text{color:#f9fafb;word-break:break-word;overflow-wrap:break-word;max-width:100%;margin-bottom:12px;font-size:1.15rem;font-weight:600;line-height:1.45}.mobile-nav-backdrop{-webkit-backdrop-filter:blur(4px);z-index:999998;background:#000000b3;position:fixed;inset:0}.mobile-quick-signin,.mobile-question-pills,.mobile-map-nav-bar{display:none}.exam-map-nav-controls{grid-template-columns:1fr 1fr;gap:8px;margin:12px 0 14px;display:grid}.exam-chamber-top{justify-content:space-between;align-items:center;margin-bottom:20px;padding:16px 20px;display:flex}@media (width<=992px){.nav-header{height:64px}.nav-inner{justify-content:space-between;align-items:center;width:100%;padding:0;display:flex}.nav-brand{flex-shrink:1;font-size:1.15rem}.nav-links,.sound-toggle-desktop,.desktop-auth-btns,.nav-level-pill{display:none!important}.nav-actions{flex-shrink:0!important;align-items:center!important;gap:8px!important;display:flex!important}.mobile-hamburger-btn{border:1px solid var(--border-strong);color:#fff;cursor:pointer;background:#ffffff0f;flex-shrink:0;padding:8px 10px;visibility:visible!important;opacity:1!important;display:inline-flex!important}.nav-avatar-btn{flex-shrink:0;width:32px;height:32px}.mobile-nav-drawer{z-index:999999;border-top:1px solid var(--border);background:#080d0a;flex-direction:column;width:100vw;height:calc(100vh - 64px);padding:18px 16px 40px;display:flex;position:fixed;inset:64px 0 0;overflow-y:auto}.wrap{padding:0 14px}.profile-stats-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important}.profile-stat-card{padding:12px 14px!important}.profile-stat-val{font-size:1.35rem!important}.profile-badges-grid{grid-template-columns:repeat(2,1fr)!important;gap:10px!important}.profile-badge-card{padding:12px 14px!important}.profile-badge-title{font-size:.92rem!important}.profile-badge-desc{font-size:.74rem!important;line-height:1.35!important}.grid-4{grid-template-columns:repeat(2,1fr)!important;gap:10px!important}.grid-3,.grid-2{grid-template-columns:1fr;gap:12px}.arena-hero{padding:32px 0 28px}.arena-hero-headline{font-size:clamp(1.8rem,6vw,2.4rem);line-height:1.08}.arena-hero-desc{margin-bottom:18px;font-size:.92rem;line-height:1.5}.arena-stats-strip{text-align:center;margin-top:20px;padding-top:16px;grid-template-columns:repeat(3,1fr)!important;gap:8px!important;display:grid!important}.stat-strip-num{font-size:1.15rem!important}.stat-strip-label{font-size:.65rem!important}.section-label{flex-direction:column;align-items:flex-start;gap:8px}.card{padding:16px 14px}.footer-inner{flex-direction:column;align-items:flex-start;gap:16px}.exam-chamber-layout{grid-template-columns:1fr}.exam-question-card{padding:18px 16px!important}.exam-briefing-card{padding:20px 16px!important}.exam-map-card{padding:16px 14px!important}.formatted-q-text{margin-bottom:10px!important;font-size:1rem!important;line-height:1.4!important}.exam-option-card{gap:12px!important;min-height:52px!important;margin-bottom:10px!important;padding:13px 14px!important;font-size:.9rem!important}.exam-opt-badge{width:24px!important;height:24px!important;font-size:.72rem!important}.code-block-container{margin:10px 0 14px!important;font-size:.8rem!important}.mobile-quick-signin{display:inline-flex!important}.exam-chamber-top{margin-bottom:14px!important;padding:12px 14px!important}.exam-chamber-top h2{font-size:1.05rem!important}.mobile-question-pills{-webkit-overflow-scrolling:touch;align-items:center;gap:6px;margin-bottom:6px;padding:4px 0 10px;overflow-x:auto;display:flex!important}.mobile-map-nav-bar{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px;padding:6px 0 14px;display:flex!important}.mobile-q-pill{border:1px solid var(--border);min-width:32px;height:32px;color:var(--text-muted);cursor:pointer;background:#080b09;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;padding:0 6px;font:600 .78rem DM Mono,monospace;transition:all .15s;display:flex}.mobile-q-pill.active{font-weight:700;background:var(--lime)!important;color:#080b09!important;border-color:var(--lime)!important}.mobile-q-pill.answered:not(.active){color:var(--lime)!important;background:#c8ff3726!important;border-color:#c8ff3759!important}.exam-map-card{display:none!important}.podium-grid{grid-template-columns:1fr 1.15fr 1fr!important;align-items:flex-end!important;gap:8px!important;width:100%!important;margin-bottom:24px!important;display:grid!important}.podium-card{text-align:center!important;box-sizing:border-box!important;border-radius:6px!important;width:100%!important;min-width:0!important;padding:14px 6px!important}.podium-card.gold{order:unset!important;border-color:var(--lime)!important;background:#17201b!important;padding:18px 8px!important;transform:translateY(-8px)!important}.podium-card h3{white-space:nowrap!important;text-overflow:ellipsis!important;margin:4px 0 2px!important;font-size:clamp(.75rem,2.8vw,.95rem)!important;overflow:hidden!important}.podium-card .mono{font-size:clamp(.75rem,2.8vw,1.05rem)!important}.podium-card .badge{padding:1px 4px!important;font-size:.58rem!important}}@media (width<=480px){.wrap{padding:0 12px}.arena-hero-headline{font-size:1.75rem}.result-actions-group{flex-direction:column!important;align-items:stretch!important;width:100%!important}.result-actions-group .btn{justify-content:center!important;width:100%!important;min-height:48px!important}.score-circle{width:130px!important;height:130px!important}.score-percentage{font-size:2.2rem!important}}.toast-container{z-index:9999;pointer-events:none;flex-direction:column;gap:12px;width:calc(100vw - 48px);max-width:380px;display:flex;position:fixed;top:24px;right:24px}.toast-card{pointer-events:auto;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border);background:#121a16f2;border-radius:6px;align-items:center;gap:14px;padding:14px 18px;transition:transform .2s,opacity .2s;animation:.35s cubic-bezier(.16,1,.3,1) forwards toastSlideIn;display:flex;box-shadow:0 10px 30px #00000080,0 0 20px #c8ff371a}.toast-card.toast-badge{border-color:var(--lime);background:radial-gradient(circle at 100% 0,#c8ff371f,#121a16f5)}.toast-card.toast-levelup{background:radial-gradient(circle at 100% 0,#f59e0b26,#121a16f5);border-color:#f59e0b}.toast-icon{flex-shrink:0;justify-content:center;align-items:center;font-size:1.6rem;display:flex}.toast-body{flex:1;min-width:0}.toast-title{text-transform:uppercase;color:var(--lime);letter-spacing:.05em;margin-bottom:2px;font-family:DM Mono,monospace;font-size:.76rem;font-weight:700}.toast-card.toast-levelup .toast-title{color:#fbbf24}.toast-msg{color:var(--text);word-break:break-word;font-size:.84rem;line-height:1.35}.toast-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:4px;font-size:.8rem;line-height:1;transition:color .15s}.toast-close:hover{color:#fff}.nav-level-pill{background:#c8ff3714;border:1px solid #c8ff374d;border-radius:100px;align-items:center;gap:8px;padding:6px 14px;text-decoration:none;transition:all .2s;display:inline-flex}.nav-level-pill:hover{border-color:var(--lime);background:#c8ff3726;transform:translateY(-1px)}.nav-avatar-btn{border:1.5px solid var(--lime);width:40px;height:40px;color:var(--lime);cursor:pointer;background:#15221b;border-radius:50%;outline:none;justify-content:center;align-items:center;font-family:DM Mono,monospace;font-size:.95rem;font-weight:700;transition:all .2s cubic-bezier(.16,1,.3,1);display:flex;position:relative}.nav-avatar-btn:hover{transform:scale(1.05);box-shadow:0 0 14px #c8ff3766}.nav-avatar-online-dot{background:var(--lime);border:2px solid #080b09;border-radius:50%;width:10px;height:10px;position:absolute;bottom:0;right:0}.nav-dropdown-menu{z-index:1000;background:#0d1410;border:1px solid #c8ff374d;border-radius:10px;width:260px;padding:8px 0;animation:.2s cubic-bezier(.16,1,.3,1) toastSlideIn;position:absolute;top:calc(100% + 12px);right:0;box-shadow:0 16px 40px #000000b3}.nav-dropdown-header{border-bottom:1px solid var(--border);padding:12px 16px 14px}.nav-dropdown-item{color:#e5e7eb;text-align:left;cursor:pointer;background:0 0;border:none;justify-content:space-between;align-items:center;width:100%;padding:10px 16px;font-family:inherit;font-size:.88rem;text-decoration:none;transition:background .15s,color .15s;display:flex}.nav-dropdown-item:hover{color:var(--lime);background:#c8ff3714}.nav-dropdown-item.danger:hover{color:#f87171;background:#ef44441f}.nav-dropdown-divider{background:var(--border);height:1px;margin:6px 0}.mobile-exam-dock{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding-top:20px;display:flex}@media (width<=768px){.exam-chamber-wrap{padding-bottom:180px!important}.exam-question-card{padding-bottom:40px!important}.mobile-exam-dock{-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--border-strong);padding:12px 16px;padding-bottom:max(12px, env(safe-area-inset-bottom));z-index:999;background:#080d0af5;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -8px 24px #0009}.mobile-exam-dock .btn{justify-content:center;align-items:center;min-height:48px;font-size:.92rem;font-weight:700;display:inline-flex}}.teacher-stats-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:36px;display:grid}@media (width<=640px){.teacher-stats-grid{gap:8px!important;margin-bottom:24px!important}.teacher-stats-grid .card{text-align:center;padding:12px 8px!important}.teacher-stats-grid .eyebrow{white-space:nowrap;text-overflow:ellipsis;overflow:hidden;font-size:.62rem!important}.teacher-stats-grid h3{margin:4px 0 0!important;font-size:1.6rem!important}}.question-quality-bar{border:1px solid var(--border);background:#ffffff05;border-radius:6px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:24px;padding:10px 14px;display:flex}.question-quality-actions{align-items:center;gap:8px;display:flex}@media (width<=640px){.question-quality-bar{flex-direction:column;align-items:stretch!important;gap:10px!important}.question-quality-actions{grid-template-columns:1fr 1fr 1fr;width:100%;gap:6px!important;display:grid!important}.question-quality-actions .btn{justify-content:center;min-height:40px;padding:6px 4px!important;font-size:.78rem!important}}.mobile-leaderboard-cards{display:none}@media (width<=640px){.leaderboard-table-desktop{display:none!important}.mobile-leaderboard-cards{flex-direction:column;gap:10px;display:flex}.mobile-lb-card{border:1px solid var(--border);background:#0d1310;border-radius:6px;flex-direction:column;gap:10px;padding:14px 16px;transition:border-color .2s;display:flex}.mobile-lb-card.top-1{border-color:var(--lime);background:linear-gradient(135deg,#c8ff3714,#0d1310);box-shadow:0 0 16px #c8ff3714}.mobile-lb-card.top-podium{border-color:#c8ff3740}.mobile-lb-top{justify-content:space-between;align-items:center;display:flex}.mobile-lb-identity{align-items:center;gap:10px;font-size:.98rem;font-weight:700;display:flex}.mobile-lb-rank{color:var(--text-muted);min-width:28px;font-family:DM Mono,monospace;font-size:.9rem;font-weight:800}.mobile-lb-rank.gold{color:var(--lime)}.mobile-lb-meta{color:var(--text-muted);border-top:1px solid #ffffff0d;justify-content:space-between;align-items:center;padding-top:8px;font-size:.78rem;display:flex}}.exam-q-prompt{color:#f9fafb;margin:0 0 24px;font-size:1.35rem;font-weight:600;line-height:1.45}.exam-action-bar{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;margin-top:16px;padding-top:18px;display:flex}@media (width<=768px){.formatted-q-text{margin-bottom:12px!important;font-size:1.05rem!important;line-height:1.45!important}.code-block-container{margin:10px 0 16px!important}.code-block-body{-webkit-overflow-scrolling:touch;max-height:200px!important;padding:10px 0!important;font-size:.76rem!important;line-height:1.42!important;overflow-y:auto!important}.code-block-body::-webkit-scrollbar{width:5px;height:5px}.code-block-body::-webkit-scrollbar-thumb{background:#c8ff374d;border-radius:4px}.code-block-body pre{padding:0 12px!important}.exam-option-card{min-height:44px!important;margin-bottom:6px!important;padding:8px 12px!important}.exam-opt-text{font-size:.88rem!important;line-height:1.35!important}.exam-opt-badge{width:24px!important;height:24px!important;margin-right:8px!important;font-size:.72rem!important}.exam-action-bar{margin-top:12px!important;padding-top:14px!important}.exam-action-bar .btn{text-align:center;flex:1;justify-content:center;padding:10px 14px!important;font-size:.86rem!important}}