@keyframes shimmerSweep{0%{transform:translate(-100%)skew(-12deg)}to{transform:translate(220%)skew(-12deg)}}@keyframes shake{0%,to{transform:translate(0)}15%{transform:translate(-9px)}35%{transform:translate(9px)}55%{transform:translate(-6px)}75%{transform:translate(6px)}}.shake{animation:.42s ease-in-out shake}.anim-fade-up{animation:fadeUp var(--t-slow)var(--ease-out)both}.anim-fade-in{animation:fadeIn var(--t)var(--ease)both}.anim-scale-in{animation:scaleIn var(--t-slow)var(--ease-out)both}.stagger>:first-child{animation-delay:0s}.stagger>:nth-child(2){animation-delay:70ms}.stagger>:nth-child(3){animation-delay:.14s}.stagger>:nth-child(4){animation-delay:.21s}.stagger>:nth-child(5){animation-delay:.28s}.stagger>:nth-child(6){animation-delay:.35s}.stagger>:nth-child(7){animation-delay:.42s}.skeleton{background:linear-gradient(90deg,var(--surface2)25%,var(--surface3)50%,var(--surface2)75%);border-radius:var(--radius);background-size:400px 100%;animation:1.4s ease-in-out infinite skeletonShimmer}.page{min-height:100vh;padding:var(--s5)var(--s3);background:#000;flex-direction:column;justify-content:center;align-items:center;display:flex}.page-scroll{min-height:100vh;padding:var(--s3)var(--s3)5rem;background:#000}.light .page,.light .page-scroll{background:var(--bg)}.container{width:100%;max-width:440px;margin:0 auto}.container-md{width:100%;max-width:680px;margin:0 auto}.container-lg{width:100%;max-width:1060px;margin:0 auto}@media (min-width:768px){.container{max-width:600px}}.card{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:var(--s3);box-shadow:var(--glass-shadow);transition:all var(--t-slow)var(--ease-out);position:relative;overflow:hidden}.card:after{content:"";border-radius:inherit;pointer-events:none;background:linear-gradient(135deg,#c8d4e80a 0%,#0000 55%);position:absolute;inset:0}.card:hover{border-color:var(--border2);box-shadow:var(--shadow),var(--shadow-glow);transform:translateY(-2px)}.card-interactive{cursor:pointer}.card-interactive:active{transition-duration:var(--t-fast);transform:scale(.995)translateY(0)}.btn{border-radius:var(--radius);font-family:var(--font);letter-spacing:-.015em;cursor:pointer;transition:all var(--t-slow)var(--spring);white-space:nowrap;-webkit-tap-highlight-color:transparent;border:none;justify-content:center;align-items:center;gap:6px;padding:10px 20px;font-size:.875rem;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";background:linear-gradient(90deg,#0000,#ffffff14,#0000);width:40%;height:100%;transition:left;position:absolute;top:0;left:-60%;transform:skew(-12deg)}.btn:hover:after{transition:left .55s var(--ease);left:130%}.btn:active{transition-duration:var(--t-fast);transform:scale(.97)translateY(1px)}.btn:disabled{opacity:.35;cursor:not-allowed;pointer-events:none}.btn-primary{background:var(--fg);color:var(--bg);box-shadow:0 1px 3px #00000040}.btn-primary:hover{background:var(--silver2);box-shadow:var(--shadow-silver);transform:translateY(-1px)}.light .btn-primary{background:var(--silver);color:#fff}.light .btn-primary:hover{background:var(--silver2)}.btn-secondary{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);color:var(--fg2);border:1px solid var(--glass-border);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--surface2);border-color:var(--border2);color:var(--fg);transform:translateY(-1px)}.btn-ghost{color:var(--fg3);background:0 0;border:1px solid #0000}.btn-ghost:hover{background:var(--accent-soft);color:var(--fg);border-color:var(--border)}.btn-success{background:var(--success);color:#030c07;font-weight:700}.btn-success:hover{filter:brightness(1.1)}.btn-sm{border-radius:var(--radius-sm);padding:6px 14px;font-size:.8rem}.btn-lg{padding:13px 28px;font-size:.9375rem}.btn-full{width:100%}.t-display{font-family:var(--font-display);letter-spacing:-.03em;color:var(--fg);font-size:clamp(2.75rem,8vw,4.5rem);font-weight:400;line-height:1.05}.t-heading{letter-spacing:-.03em;color:var(--fg);font-size:1.5rem;font-weight:700;line-height:1.2}.t-title{letter-spacing:-.02em;color:var(--fg);font-size:1.125rem;font-weight:600}.t-body{color:var(--fg2);font-size:.9375rem;line-height:1.65}.t-small{color:var(--fg3);font-size:.8125rem;line-height:1.5}.t-micro{letter-spacing:.08em;text-transform:uppercase;color:var(--fg3);font-size:.68rem;font-weight:700}.t-mono{font-family:var(--font-mono)}.t-accent{color:var(--accent)}.t-success{color:var(--success)}.t-error{color:var(--error)}.eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--fg3);margin-bottom:var(--s1);font-size:.67rem;font-weight:700}.section-label{letter-spacing:.1em;text-transform:uppercase;color:var(--fg3);margin-bottom:6px;font-size:.68rem;font-weight:700}.logo{font-family:var(--font-display);letter-spacing:-.04em;background:linear-gradient(135deg,#c8d4e8 0%,#fff 50%,#c8d4e8 100%);-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 20px #c8d4e840);-webkit-background-clip:text;background-clip:text;font-size:clamp(3rem,9vw,4.75rem);font-weight:400;line-height:1}.logo-accent{background:linear-gradient(135deg,#4a5a78 0%,#8a9bbf 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-style:italic}.light .logo{background:linear-gradient(135deg,#7a5c00 0%,#d4a017 50%,#7a5c00 100%);-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 12px #b8860b33);-webkit-background-clip:text;background-clip:text}.light .logo-accent{background:linear-gradient(135deg,#6b7280 0%,#9ca3af 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.badge{border-radius:var(--radius-full);letter-spacing:.01em;align-items:center;gap:3px;padding:3px 9px;font-size:.67rem;font-weight:600;display:inline-flex}.badge-silver{background:var(--accent-soft);color:var(--silver);border:1px solid var(--border2)}.badge-green{background:var(--success-bg);color:var(--success);border:1px solid var(--success-border)}.badge-red{background:var(--error-bg);color:var(--error);border:1px solid var(--error-border)}.badge-orange{background:var(--orange-bg);color:var(--orange);border:1px solid var(--orange-border)}.badge-muted{background:var(--surface2);color:var(--fg3);border:1px solid var(--border)}.back-btn{cursor:pointer;color:var(--fg3);font-family:var(--font);margin-bottom:var(--s3);transition:color var(--t)var(--ease);letter-spacing:-.015em;background:0 0;border:none;align-items:center;gap:6px;padding:4px 0;font-size:.875rem;font-weight:500;display:inline-flex}.back-btn:hover{color:var(--fg)}.theme-toggle{border-radius:var(--radius-sm);border:1px solid var(--glass-border);background:var(--glass-bg);width:34px;height:34px;-webkit-backdrop-filter:var(--glass-blur);color:var(--fg3);cursor:pointer;transition:all var(--t)var(--ease);box-shadow:var(--shadow-sm);justify-content:center;align-items:center;display:flex}.theme-toggle:hover{background:var(--surface2);color:var(--fg);border-color:var(--border2);transform:scale(1.05)}.home-screen{min-height:100vh;padding:var(--s5)var(--s3);background:#000;flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.light .home-screen{background:var(--bg)}.home-screen:before{content:"";pointer-events:none;background:radial-gradient(at top,#c8d4e80d 0%,#0000 65%);width:800px;height:600px;animation:6s ease-in-out infinite glowPulse;position:absolute;top:-100px;left:50%;transform:translate(-50%)}.home-screen:after{content:"";pointer-events:none;background:radial-gradient(#c8d4e805 0%,#0000 70%);width:400px;height:400px;position:absolute;bottom:-80px;right:-80px}.light .home-screen:before{background:radial-gradient(at top,#b8860b14 0%,#0000 65%)}.light .home-screen:after{background:radial-gradient(#daa5200d 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.setup-option.selected:after{background:linear-gradient(90deg,#0000,#b8860b66,#0000)}.setup-option:active{transition-duration:70ms;transform:scale(.98)}.practice-screen{background:#000;min-height:100vh}.light .practice-screen{background:var(--bg)}.practice-topbar{z-index:50;border-bottom:1px solid var(--glass-border);align-items:center;gap:var(--s2);-webkit-backdrop-filter:blur(24px);background:#080e1ccc;padding:12px 20px;display:flex;position:sticky;top:0;box-shadow:0 1px #c8d4e80d}.light .practice-topbar{background:#f4f6fcd9;box-shadow:0 1px #090f220f}.practice-progress-track{background:var(--border);height:1.5px;position:absolute;bottom:0;left:0;right:0}.practice-progress-fill{background:linear-gradient(90deg,var(--silver)0%,var(--silver2)100%);height:100%;transition:width .5s var(--ease-out);border-radius:0 99px 99px 0}.practice-dots{flex:1;justify-content:center;align-items:center;gap:4px;display:flex}.practice-dot{height:4px;transition:all var(--t-slow)var(--spring);border-radius:99px;flex-shrink:0}.practice-dot.current{width:20px}.practice-dot.past{width:4px}.practice-dot.future{opacity:.2;width:4px}.practice-content{max-width:640px;padding:var(--s4)var(--s3)var(--s6);margin:0 auto}.passage-card{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--glass-shadow),0 1px 0 #c8d4e80a inset;margin-bottom:20px;padding:28px;position:relative;overflow:hidden}.passage-card:before{content:"";pointer-events:none;background:linear-gradient(90deg,#0000 0%,#c8d4e840 40%,#c8d4e866 60%,#0000 100%);height:1px;position:absolute;top:0;left:0;right:0}.passage-text{color:var(--fg);letter-spacing:.005em;font-family:Georgia,Times New Roman,serif;font-size:1rem;line-height:1.9}.passage-text u{text-underline-offset:3px;text-decoration:underline;text-decoration-thickness:2px;-webkit-text-decoration-color:var(--fg);text-decoration-color:var(--fg);font-style:normal}.question-text{color:var(--fg2);margin-bottom:var(--s2);letter-spacing:-.012em;font-size:.9375rem;font-weight:500;line-height:1.7}.choice-btn{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:1.5px solid var(--glass-border);border-radius:var(--radius-lg);cursor:pointer;text-align:left;width:100%;transition:all var(--t-slow)var(--spring);align-items:center;gap:14px;padding:15px 18px;display:flex;position:relative;overflow:hidden;box-shadow:0 2px 8px #0000002e,inset 0 1px #c8d4e80f}.choice-btn:before{content:"";transform-origin:50%;width:2.5px;transition:transform var(--t-slow)var(--spring);background:linear-gradient(#c8d4e800 0%,#c8d4e8cc 50%,#c8d4e800 100%);border-radius:0 3px 3px 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#ffffff12;border-radius:12px;align-items:center;gap:1rem;width:100%;padding:1rem 1.125rem;transition:border-color .2s,background .2s,box-shadow .2s,transform .1s;display:flex;position:relative;overflow:hidden}.lab-subtopic:before{content:"";opacity:0;background:#3b82f6;border-radius:0 2px 2px 0;width:2px;transition:opacity .2s,transform .22s cubic-bezier(.34,1.15,.64,1);position:absolute;top:18%;bottom:18%;left:0;transform:scaleY(.3)}.lab-subtopic:hover{background:#3b82f60a;border-color:#3b82f638;box-shadow:0 0 24px #3b82f612,inset 0 0 0 1px #3b82f60f}.lab-subtopic:hover:before{opacity:1;transform:scaleY(1)}.lab-subtopic:active{transition-duration:70ms;transform:translate(2px)scale(.998)}.lab-subtopic.locked{opacity:.35;cursor:not-allowed}.lab-subtopic.locked:hover{box-shadow:none;background:#ffffff05;border-color:#ffffff12;transform:none}.lab-subtopic.locked:before{display:none}.lab-subject-card{cursor:pointer;border-radius:18px;width:100%;padding:2px;transition:transform .28s 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lab-border-shimmer{0%{background-position:0%}50%{background-position:100%}to{background-position:0%}}.lab-subject-inner{background:#0a0a0a;border-radius:16px;padding:1.75rem;position:relative;overflow:hidden}.lab-tab-bar{scrollbar-width:none;background:#ffffff08;border:1px solid #ffffff12;border-radius:12px;gap:2px;padding:4px;display:flex;overflow-x:auto}.lab-tab-bar::-webkit-scrollbar{display:none}.lab-tab{cursor:pointer;min-width:max-content;font-family:var(--font-mono,"SF Mono",monospace);letter-spacing:.07em;text-transform:uppercase;color:#c8d4e866;white-space:nowrap;background:0 0;border:none;border-radius:8px;flex:1;padding:.45rem .875rem;font-size:.68rem;font-weight:600;transition:background .18s,color .18s}.lab-tab.active{color:#c8d4e8e6;background:#3b82f61f;box-shadow:inset 0 0 0 1px #3b82f638}.lab-tab:hover:not(.active){color:#c8d4e8a6;background:#ffffff0a}.lab-stats-header{z-index:10;-webkit-backdrop-filter:blur(20px);background:#000000e0;border-bottom:1px solid #ffffff0f;justify-content:space-between;align-items:center;padding:1rem 1.25rem;display:flex;position:sticky;top:0}.lab-section-label{font-family:var(--font-mono,"SF Mono",monospace);letter-spacing:.2em;text-transform:uppercase;color:#3b82f6a6;align-items:center;gap:.5rem;margin-bottom:.875rem;font-size:9px;display:flex}.lab-section-label:after{content:"";background:#ffffff0d;flex:1;height:1px}.light .lab-grid-overlay{background-image:linear-gradient(#b8860b1a 1px,#0000 1px),linear-gradient(90deg,#b8860b1a 1px,#0000 1px);background-size:28px 28px}.light .lab-subtopic{background:#ffffffbf;border-color:#00000014}.light .lab-subtopic:hover{background:#fffffffa;border-color:#b8860b47;box-shadow:0 0 24px #b8860b12}.light .lab-subtopic:before{background:#b8860b}.light .lab-subject-inner{background:#fffef5;border:1px solid #b8860b26}.light .lab-tab-bar{background:#b8860b0a;border-color:#b8860b2e}.light .lab-tab.active{color:#7a5c00;background:#b8860b1f;box-shadow:inset 0 0 0 1px #b8860b47}.light .lab-tab{color:#1a120861}.light .lab-tab:hover:not(.active){color:#1a12089e}.light .lab-stats-header{background:#fefef9f2;border-bottom-color:#b8860b24}.light .lab-section-label{color:#b8860ba6}.light .lab-section-label:after{background:#00000012}@media (max-width:640px){.lab-subject-inner{padding:1.25rem}.lab-subtopic{gap:.75rem;padding:.875rem 1rem}.lab-tab{padding:.4rem .625rem;font-size:.63rem}}