@import"https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&display=swap";*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--color-background-primary);color:var(--color-text-primary);font-family:var(--font-mono);overflow-x:hidden;position:relative}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(rgba(0,212,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.03) 1px,transparent 1px);background-size:50px 50px;pointer-events:none;z-index:0;opacity:.5}#root{position:relative;z-index:1}:root{--color-background-primary: #000000;--color-background-secondary: #0a0a0a;--color-background-tertiary: #1a1a1a;--color-background-elevated: #242424;--color-text-primary: #ffffff;--color-text-secondary: #e5e5e5;--color-text-tertiary: #a3a3a3;--color-text-quaternary: #737373;--color-text-muted: #525252;--color-primary: #0066ff;--color-primary-light: #00d4ff;--color-primary-gradient: linear-gradient(135deg, #00d4ff 0%, #0066ff 100%);--color-success: #00ff88;--color-success-glow: rgba(0, 255, 136, .4);--color-success-bg: rgba(0, 255, 136, .15);--color-error: #ff4757;--color-error-glow: rgba(255, 71, 87, .4);--color-error-bg: rgba(255, 71, 87, .15);--color-warning: #ffb800;--color-warning-glow: rgba(255, 184, 0, .4);--color-info: #a855f7;--color-info-glow: rgba(168, 85, 247, .4);--color-info-bg: rgba(168, 85, 247, .15);--color-border-primary: #333333;--color-border-secondary: #404040;--color-border-tertiary: #525252;--color-border-focus: var(--color-primary);--color-overlay: rgba(0, 0, 0, .85);--color-modal-backdrop: rgba(0, 0, 0, .7);--font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;--font-display: -apple-system, BlinkMacSystemFont, "Inter Variable", "SF Pro Display", "Segoe UI", system-ui, sans-serif;--font-size-display: 48px;--font-size-h1: 32px;--font-size-h2: 24px;--font-size-body-large: 18px;--font-size-body: 16px;--font-size-small: 14px;--font-size-tiny: 12px;--font-weight-light: 300;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.2;--line-height-normal: 1.5;--line-height-relaxed: 1.6;--line-height-loose: 2;--letter-spacing-tight: -.02em;--letter-spacing-normal: 0;--letter-spacing-wide: .02em;--letter-spacing-wider: .05em;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-7: 28px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--space-20: 80px;--space-24: 96px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 24px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -1px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5), 0 4px 6px -2px rgba(0, 0, 0, .3);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .6), 0 10px 10px -5px rgba(0, 0, 0, .3);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .7);--glow-primary: 0 0 20px var(--color-primary-light);--glow-success: 0 0 20px var(--color-success-glow);--glow-error: 0 0 20px var(--color-error-glow);--glow-subtle: 0 0 10px rgba(255, 255, 255, .1);--shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, .4);--duration-instant: .1s;--duration-fast: .2s;--duration-normal: .3s;--duration-slow: .4s;--duration-slower: .5s;--duration-glacial: 1s;--ease-linear: linear;--ease-in: cubic-bezier(.4, 0, 1, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--ease-bounce: cubic-bezier(.68, -.55, .265, 1.55);--ease-elastic: cubic-bezier(.175, .885, .32, 1.275);--ease-smooth: cubic-bezier(.25, .46, .45, .94);--z-base: 0;--z-dropdown: 100;--z-sticky: 200;--z-fixed: 300;--z-modal-backdrop: 400;--z-modal: 500;--z-popover: 600;--z-tooltip: 700;--glass-background: rgba(26, 26, 26, .7);--glass-border: rgba(255, 255, 255, .1);--glass-blur: blur(12px);--glass-saturate: saturate(180%);--gradient-primary: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);--gradient-success: linear-gradient(135deg, #00ff88 0%, #00cc70 100%);--gradient-error: linear-gradient(135deg, #ff6b7a 0%, #ff4757 100%);--gradient-purple: linear-gradient(135deg, #c084fc 0%, #a855f7 100%);--gradient-shimmer: linear-gradient(90deg, transparent, rgba(255, 255, 255, .1), transparent);--breakpoint-sm: 640px;--breakpoint-md: 768px;--breakpoint-lg: 1024px;--breakpoint-xl: 1280px;--breakpoint-2xl: 1536px;--container-sm: 640px;--container-md: 768px;--container-lg: 1024px;--container-xl: 1280px}[data-theme=light]{--color-background-primary: #ffffff;--color-background-secondary: #f8f9fa;--color-background-tertiary: #f0f2f5;--color-background-elevated: #e8eaed;--color-text-primary: #0a0a0a;--color-text-secondary: #2d3748;--color-text-tertiary: #4a5568;--color-text-quaternary: #718096;--color-text-muted: #a0aec0;--color-primary: #0066ff;--color-primary-light: #3b82f6;--color-primary-gradient: linear-gradient(135deg, #3b82f6 0%, #0066ff 100%);--color-success: #10b981;--color-success-glow: rgba(16, 185, 129, .3);--color-success-bg: rgba(16, 185, 129, .1);--color-error: #ef4444;--color-error-glow: rgba(239, 68, 68, .3);--color-error-bg: rgba(239, 68, 68, .1);--color-warning: #f59e0b;--color-warning-glow: rgba(245, 158, 11, .3);--color-info: #8b5cf6;--color-info-glow: rgba(139, 92, 246, .3);--color-info-bg: rgba(139, 92, 246, .1);--color-border-primary: #e2e8f0;--color-border-secondary: #cbd5e0;--color-border-tertiary: #a0aec0;--color-border-focus: var(--color-primary);--color-overlay: rgba(255, 255, 255, .9);--color-modal-backdrop: rgba(0, 0, 0, .5);--glass-background: rgba(255, 255, 255, .8);--glass-border: rgba(0, 0, 0, .08);--glass-blur: blur(16px);--glass-saturate: saturate(120%);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .15);--shadow-2xl: 0 25px 50px rgba(0, 0, 0, .25);--gradient-primary: linear-gradient(135deg, #3b82f6 0%, #0066ff 100%);--gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);--gradient-error: linear-gradient(135deg, #f87171 0%, #ef4444 100%);--gradient-purple: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%);--gradient-shimmer: linear-gradient(90deg, transparent, rgba(0, 0, 0, .05), transparent)}@media (prefers-reduced-motion: reduce){:root{--duration-instant: 0ms;--duration-fast: 0ms;--duration-normal: 0ms;--duration-slow: 0ms;--duration-slower: 0ms;--duration-glacial: 0ms}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-30px)}to{opacity:1;transform:translate(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes fadeOutUp{0%{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-20px)}}@keyframes scaleOut{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.95)}}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-8px)}75%{transform:translate(8px)}}@keyframes gentleShake{0%,to{transform:translate(0)}33%{transform:translate(-4px)}66%{transform:translate(4px)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes scalePulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes heartbeat{0%,to{transform:scale(1)}14%{transform:scale(1.15)}28%{transform:scale(1)}42%{transform:scale(1.15)}70%{transform:scale(1)}}@keyframes glowPulse{0%,to{box-shadow:0 0 10px #fff3}50%{box-shadow:0 0 20px #fff6}}@keyframes successGlow{0%,to{box-shadow:0 0 10px var(--color-success-glow)}50%{box-shadow:0 0 30px var(--color-success-glow)}}@keyframes errorGlow{0%,to{box-shadow:0 0 10px var(--color-error-glow)}50%{box-shadow:0 0 30px var(--color-error-glow)}}@keyframes warningGlow{0%,to{box-shadow:0 0 10px var(--color-warning-glow)}50%{box-shadow:0 0 30px var(--color-warning-glow)}}@keyframes primaryGlow{0%,to{box-shadow:0 0 10px #00d4ff4d}50%{box-shadow:0 0 25px #00d4ff99}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}@keyframes skeletonLoading{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes wiggle{0%,to{transform:rotate(0)}25%{transform:rotate(-5deg)}75%{transform:rotate(5deg)}}@keyframes blink{0%,49%,to{opacity:1}50%,99%{opacity:0}}@keyframes cursorBlink{0%,49%{border-color:var(--color-text-primary)}50%,to{border-color:transparent}}@keyframes gradientSweepSuccess{0%{background:transparent}50%{background:var(--color-success-bg)}to{background:transparent}}@keyframes gradientSweepError{0%{background:transparent}50%{background:var(--color-error-bg)}to{background:transparent}}@keyframes numberUp{0%{transform:translateY(20px);opacity:0}50%{transform:translateY(-5px)}to{transform:translateY(0);opacity:1}}@keyframes numberDown{0%{transform:translateY(0);opacity:1}to{transform:translateY(20px);opacity:0}}@keyframes confettiFall{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(100vh) rotate(720deg);opacity:0}}@keyframes particleRise{0%{transform:translateY(0) scale(1);opacity:1}to{transform:translateY(-100px) scale(0);opacity:0}}@keyframes backdropBlurIn{0%{-webkit-backdrop-filter:blur(0px);backdrop-filter:blur(0px);background-color:#0000}to{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background-color:var(--color-overlay)}}@keyframes backdropBlurOut{0%{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background-color:var(--color-overlay)}to{-webkit-backdrop-filter:blur(0px);backdrop-filter:blur(0px);background-color:#0000}}.animate-fade-in{animation:fadeIn var(--duration-normal) var(--ease-out)}.animate-fade-in-up{animation:fadeInUp var(--duration-normal) var(--ease-out)}.animate-fade-in-down{animation:fadeInDown var(--duration-normal) var(--ease-out)}.animate-scale-in{animation:scaleIn var(--duration-normal) var(--ease-out)}.animate-shake{animation:gentleShake var(--duration-normal) var(--ease-out)}.animate-pulse{animation:pulse 2s var(--ease-in-out) infinite}.animate-glow-pulse{animation:glowPulse 2s var(--ease-in-out) infinite}.animate-spin{animation:spin 1s var(--ease-linear) infinite}.animate-shimmer{animation:shimmer 2s var(--ease-linear) infinite}.animate-float{animation:float 3s var(--ease-in-out) infinite}.animate-heartbeat{animation:heartbeat 1.5s var(--ease-in-out) infinite}.transition-all{transition:all var(--duration-normal) var(--ease-out)}.transition-fast{transition:all var(--duration-fast) var(--ease-out)}.transition-slow{transition:all var(--duration-slow) var(--ease-out)}.transition-colors{transition:color var(--duration-normal) var(--ease-out),background-color var(--duration-normal) var(--ease-out),border-color var(--duration-normal) var(--ease-out)}.transition-transform{transition:transform var(--duration-normal) var(--ease-out)}.transition-opacity{transition:opacity var(--duration-normal) var(--ease-out)}.hover-lift{transition:transform var(--duration-fast) var(--ease-out),box-shadow var(--duration-fast) var(--ease-out)}.hover-lift:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.hover-glow{transition:box-shadow var(--duration-fast) var(--ease-out)}.hover-glow:hover{box-shadow:var(--glow-primary)}.hover-scale{transition:transform var(--duration-fast) var(--ease-out)}.hover-scale:hover{transform:scale(1.05)}.hover-brighten{transition:filter var(--duration-fast) var(--ease-out)}.hover-brighten:hover{filter:brightness(1.2)}.app{min-height:100vh;display:flex;flex-direction:column;position:relative}.main-content{flex:1;display:flex;align-items:center;justify-content:center;padding-top:80px;padding-bottom:60px;min-height:100vh}.content-wrapper{width:100%;max-width:1200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-6);padding:var(--space-6)}.footer{position:fixed;bottom:0;left:0;width:100%;padding:var(--space-4);text-align:center;color:var(--color-text-quaternary);font-family:var(--font-mono);font-size:var(--font-size-small);background:var(--glass-background);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--color-border-primary);box-shadow:0 -2px 8px #0000000d;z-index:var(--z-base)}.footer p{margin:0;line-height:var(--line-height-normal)}.footer a{color:var(--color-text-tertiary);text-decoration:none;transition:all var(--duration-fast) var(--ease-out);position:relative}.footer a:after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:1px;background:var(--gradient-primary);transition:width var(--duration-fast) var(--ease-out)}.footer a:hover{color:var(--color-primary-light)}.footer a:hover:after{width:100%}*:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:var(--radius-sm)}::selection{background:var(--color-primary);color:var(--color-text-primary)}::-moz-selection{background:var(--color-primary);color:var(--color-text-primary)}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--color-background-secondary)}::-webkit-scrollbar-thumb{background:var(--color-border-tertiary);border-radius:var(--radius-full);border:2px solid var(--color-background-secondary)}::-webkit-scrollbar-thumb:hover{background:var(--color-primary)}@media (max-width: 768px){.main-content{padding-top:70px;padding-bottom:50px}.content-wrapper{padding:var(--space-4);gap:var(--space-5)}.footer{font-size:var(--font-size-tiny);padding:var(--space-3)}}.loading{display:flex;align-items:center;justify-content:center;min-height:100vh}.loading-spinner{width:50px;height:50px;border:3px solid var(--color-border-primary);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.no-scroll{overflow:hidden}.theme-toggle{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:var(--glass-background);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-full);cursor:pointer;transition:all var(--duration-normal) var(--ease-out);box-shadow:var(--shadow-sm)}.theme-toggle:hover{background:var(--color-background-tertiary);border-color:var(--color-primary);box-shadow:0 0 20px #3b82f64d}.theme-toggle-icon{display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);transition:color var(--duration-fast) var(--ease-out)}.theme-toggle:hover .theme-toggle-icon{color:var(--color-primary)}.icon-sun{color:#f59e0b}.icon-moon{color:#8b5cf6}.navbar{position:fixed;top:0;left:0;width:100%;z-index:var(--z-sticky);background:var(--glass-background);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border-primary);box-shadow:0 2px 8px #0000001a}.navbar-content{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:var(--space-4) var(--space-6);max-width:1440px;margin:0 auto;gap:var(--space-4)}.logo-container{display:flex;align-items:center;gap:var(--space-3);cursor:pointer;-webkit-user-select:none;user-select:none;justify-self:start}.logo-icon{display:flex;align-items:center;justify-content:center;color:var(--color-primary-light);filter:drop-shadow(0 0 8px rgba(0,212,255,.5))}.logo-text{font-size:var(--font-size-h2);font-weight:var(--font-weight-bold);font-family:var(--font-mono);color:var(--color-text-primary)}.category-container{display:flex;justify-content:center;align-items:center;padding:0 var(--space-4)}.category-selector{position:relative;display:flex;align-items:center}.category-dropdown{appearance:none;background:var(--glass-background);border:1px solid var(--glass-border);border-radius:var(--radius-md);color:var(--color-text-primary);font-family:var(--font-mono);font-size:var(--font-size-body-small);padding:var(--space-2) var(--space-8) var(--space-2) var(--space-3);cursor:pointer;transition:all var(--duration-fast) var(--ease-out);outline:none}.category-dropdown:hover{background:var(--color-background-tertiary);border-color:var(--color-primary);box-shadow:0 0 15px #00d4ff33}.category-dropdown:focus{border-color:var(--color-primary-light);box-shadow:0 0 20px #00d4ff4d}.category-dropdown option{background:var(--color-background-primary);color:var(--color-text-primary);padding:var(--space-2)}.dropdown-icon{position:absolute;right:var(--space-3);pointer-events:none;color:var(--color-text-secondary);transition:color var(--duration-fast) var(--ease-out)}.category-selector:hover .dropdown-icon{color:var(--color-primary-light)}.navbar-right{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-3)}.profile-container{display:flex;align-items:center;justify-content:center}.profile-icon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;background:var(--glass-background);border:1px solid var(--glass-border);border-radius:50%;color:var(--color-text-secondary);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.profile-icon:hover{background:var(--color-background-tertiary);border-color:var(--color-primary);color:var(--color-primary-light);box-shadow:0 0 15px #00d4ff4d}.navbar-border{position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--color-primary-light),transparent);opacity:.3}@media (max-width: 768px){.navbar-content{padding:var(--space-3) var(--space-4);gap:var(--space-2)}.logo-text{font-size:var(--font-size-body-large)}.logo-icon{display:none}.category-container{padding:0 var(--space-2)}.category-dropdown{font-size:var(--font-size-tiny);padding:var(--space-2) var(--space-6) var(--space-2) var(--space-2)}.navbar-right{gap:var(--space-2)}.profile-icon{width:36px;height:36px}}.command-input-wrapper{width:100%;max-width:800px;display:flex;flex-direction:column;align-items:center;gap:var(--space-6)}.explanation-container{width:100%;max-width:60%;overflow:hidden}.explanation-text{font-size:var(--font-size-body);color:var(--color-text-secondary);text-align:center;line-height:var(--line-height-relaxed);padding:var(--space-5);white-space:pre-wrap;background:linear-gradient(135deg,#00d4ff14,#0066ff0d);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(0,212,255,.2);border-radius:var(--radius-lg);box-shadow:0 4px 15px #00d4ff1a;overflow-y:visible}.instruction-text{font-size:var(--font-size-h2);color:var(--color-text-primary);text-align:center;cursor:pointer;max-width:80%;line-height:var(--line-height-relaxed);-webkit-user-select:none;user-select:none;position:relative;padding:var(--space-5) var(--space-6);border-radius:var(--radius-lg);transition:all var(--duration-normal) var(--ease-out);overflow-y:visible;min-height:auto;background:var(--glass-background);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);box-shadow:var(--shadow-md)}.instruction-text:hover{color:var(--color-primary-light);border-color:var(--color-primary);box-shadow:0 0 25px #00d4ff4d,var(--shadow-lg);transform:translateY(-2px)}.instruction-text:after{content:"Click for hint";position:absolute;bottom:-28px;left:50%;transform:translate(-50%);font-size:var(--font-size-tiny);font-weight:var(--font-weight-medium);color:var(--color-text-quaternary);background:var(--color-background-secondary);padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);border:1px solid var(--color-border-primary);opacity:0;transition:all var(--duration-fast) var(--ease-out);pointer-events:none;white-space:nowrap}.instruction-text:hover:after{opacity:1;bottom:-32px}.input-field-container{position:relative;width:60%;max-width:600px}.input-field-container.focused:after{transform:scaleX(1)}.input-field{width:100%;background-color:transparent;border:none;border-bottom:2px solid var(--color-border-tertiary);color:var(--color-text-primary);font-family:var(--font-mono);font-size:var(--font-size-body-large);font-weight:var(--font-weight-medium);padding:var(--space-3) var(--space-2);outline:none;text-align:center;transition:all var(--duration-normal) var(--ease-out);position:relative;z-index:1;letter-spacing:var(--letter-spacing-wide)}.input-field::placeholder{color:var(--color-text-muted);font-weight:var(--font-weight-regular)}.input-field.focused{border-bottom-color:var(--color-primary)}.input-field:focus-visible{outline:none;border-radius:0}.input-field.flash-success{animation:gradientSweepSuccess var(--duration-slower) var(--ease-out),successGlow var(--duration-slower) var(--ease-out);border-bottom-color:var(--color-success)}.input-field.flash-error{animation:gradientSweepError var(--duration-slower) var(--ease-out),gentleShake var(--duration-normal) var(--ease-out),errorGlow var(--duration-slower) var(--ease-out);border-bottom-color:var(--color-error)}.input-field.flash-warning{animation:gradientSweepWarning var(--duration-slower) var(--ease-out),gentleShake var(--duration-normal) var(--ease-out),warningGlow var(--duration-slower) var(--ease-out);border-bottom-color:var(--color-warning)}@keyframes gradientSweepWarning{0%{background:transparent}50%{background:#ffb80026}to{background:transparent}}.input-field.focused{box-shadow:0 4px 20px #00d4ff26;border-radius:0}@media (max-width: 768px){.instruction-text,.explanation-container{max-width:90%}.input-field-container{width:90%}.instruction-text{font-size:var(--font-size-body-large)}.input-field{font-size:var(--font-size-body)}}.streak-wrapper{position:relative;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:var(--space-6);margin-top:var(--space-8)}.mastery-container{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);background:var(--color-background-tertiary);border-radius:var(--radius-xl);border:2px solid var(--color-border-primary);transition:all var(--duration-normal) var(--ease-out)}.mastery-icon{display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary)}.mastery-content{display:flex;flex-direction:column;align-items:flex-start;gap:var(--space-1)}.mastery-percentage{font-size:var(--font-size-h1);font-weight:var(--font-weight-bold);font-family:var(--font-mono);line-height:1;background:linear-gradient(135deg,var(--color-text-primary),var(--color-text-tertiary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mastery-label{font-size:var(--font-size-small);color:var(--color-text-quaternary);text-transform:uppercase;letter-spacing:var(--letter-spacing-wider);font-weight:var(--font-weight-medium)}.mastery-container.mastery-common{border-color:var(--color-border-primary);box-shadow:0 0 10px #ffffff0d}.mastery-container.mastery-uncommon{border-color:#0f8;box-shadow:0 0 20px #0f83;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(0,255,136,.05))}.mastery-container.mastery-uncommon .mastery-percentage{background:linear-gradient(135deg,#0f8,#00cc70);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mastery-container.mastery-uncommon .mastery-icon{color:#0f8}.mastery-container.mastery-rare{border-color:#00d4ff;box-shadow:0 0 25px #00d4ff4d;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(0,212,255,.08))}.mastery-container.mastery-rare .mastery-percentage{background:linear-gradient(135deg,#00d4ff,#06f);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mastery-container.mastery-rare .mastery-icon{color:#00d4ff}.mastery-container.mastery-epic{border-color:gold;box-shadow:0 0 30px #ffd70066;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(255,215,0,.1))}.mastery-container.mastery-epic .mastery-percentage{background:linear-gradient(135deg,gold,#ffed4e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mastery-container.mastery-epic .mastery-icon{color:gold}.mastery-container.mastery-legendary{border-color:#f0f;box-shadow:0 0 40px #ff00ff80;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(255,0,255,.12));animation:glowPulse 2s ease-in-out infinite}.mastery-container.mastery-legendary .mastery-percentage{background:linear-gradient(135deg,#f0f,#0ff,#f0f);background-size:200% 200%;animation:gradientShift 3s ease infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.mastery-container.mastery-legendary .mastery-icon{color:#f0f;filter:drop-shadow(0 0 12px rgba(255,0,255,.8))}.streak-container{position:relative;display:flex;align-items:center;justify-content:center;gap:var(--space-3);min-width:120px;padding:var(--space-4) var(--space-6);background:var(--color-background-tertiary);border-radius:var(--radius-xl);border:2px solid var(--color-border-primary);transition:all var(--duration-normal) var(--ease-out)}.streak-number{font-size:var(--font-size-display);font-weight:var(--font-weight-bold);font-family:var(--font-mono);line-height:1;background:linear-gradient(135deg,var(--color-text-primary),var(--color-text-tertiary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.streak-icon{display:flex;align-items:center;justify-content:center}.streak-label{font-size:var(--font-size-small);color:var(--color-text-quaternary);text-transform:uppercase;letter-spacing:var(--letter-spacing-wider);font-weight:var(--font-weight-medium)}.streak-container.common{border-color:var(--color-border-primary);box-shadow:0 0 10px #ffffff0d}.streak-container.uncommon{border-color:#0f8;box-shadow:0 0 20px #0f83;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(0,255,136,.05))}.streak-container.uncommon .streak-number{background:linear-gradient(135deg,#0f8,#00cc70);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.streak-container.uncommon .streak-icon{color:#ff6b35}.streak-container.rare{border-color:#00d4ff;box-shadow:0 0 25px #00d4ff4d;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(0,212,255,.08));animation:glowPulse 2s ease-in-out infinite}.streak-container.rare .streak-number{background:linear-gradient(135deg,#00d4ff,#06f);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.streak-container.rare .streak-icon{color:#00d4ff}.streak-container.epic{border-color:gold;box-shadow:0 0 30px #ffd70066;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(255,215,0,.1));animation:glowPulse 2s ease-in-out infinite}.streak-container.epic .streak-number{background:linear-gradient(135deg,gold,#ffed4e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 20px rgba(255,215,0,.5)}.streak-container.epic .streak-icon{color:gold;filter:drop-shadow(0 0 8px rgba(255,215,0,.6))}.streak-container.legendary{border-color:#f0f;box-shadow:0 0 40px #ff00ff80;background:linear-gradient(135deg,var(--color-background-tertiary),rgba(255,0,255,.12));animation:glowPulse 2s ease-in-out infinite,float 3s ease-in-out infinite}.streak-container.legendary .streak-number{background:linear-gradient(135deg,#f0f,#0ff,#f0f);background-size:200% 200%;animation:gradientShift 3s ease infinite;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 30px rgba(255,0,255,.8)}.streak-container.legendary .streak-icon{color:#f0f;filter:drop-shadow(0 0 12px rgba(255,0,255,.8));animation:float 2s ease-in-out infinite}.milestone-celebration{position:absolute;top:-80px;display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-4) var(--space-6);background:var(--glass-background);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);z-index:10}.milestone-icon{color:var(--color-success);filter:drop-shadow(0 0 10px var(--color-success-glow))}.milestone-message{font-size:var(--font-size-body);font-weight:var(--font-weight-bold);color:var(--color-text-primary);text-transform:uppercase;letter-spacing:var(--letter-spacing-wide);background:var(--gradient-success);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.particle{position:absolute;width:8px;height:8px;background:var(--gradient-primary);border-radius:50%;pointer-events:none}@media (max-width: 768px){.streak-number{font-size:36px}.streak-container{min-width:100px;padding:var(--space-3) var(--space-5)}.milestone-celebration{top:-70px}}.shortcuts-wrapper{display:flex;align-items:center;justify-content:center;gap:var(--space-6);margin-top:var(--space-6);padding:var(--space-4);background:var(--glass-background);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-xl);box-shadow:var(--shadow-md)}.shortcut-item{display:flex;align-items:center;gap:var(--space-3);transition:all var(--duration-fast) var(--ease-out)}.shortcut-keys{display:flex;align-items:center;gap:var(--space-2)}.shortcut-key{display:inline-flex;align-items:center;justify-content:center;min-width:32px;padding:var(--space-1) var(--space-3);background:linear-gradient(145deg,var(--color-background-elevated),var(--color-background-tertiary));border:1px solid var(--color-border-secondary);border-bottom-width:3px;border-radius:var(--radius-md);color:var(--color-text-primary);font-family:var(--font-mono);font-size:var(--font-size-small);font-weight:var(--font-weight-semibold);text-transform:lowercase;box-shadow:0 2px 4px #0000004d,inset 0 1px #ffffff1a;transition:all var(--duration-fast) var(--ease-out);cursor:default;-webkit-user-select:none;user-select:none}.shortcut-key:hover{border-color:var(--color-primary);color:var(--color-primary-light);background:linear-gradient(145deg,rgba(0,212,255,.1),var(--color-background-tertiary))}.shortcut-separator{color:var(--color-text-quaternary);font-size:var(--font-size-tiny);font-weight:var(--font-weight-bold);margin:0 var(--space-1)}.shortcut-description{font-size:var(--font-size-small);color:var(--color-text-tertiary);font-weight:var(--font-weight-medium);letter-spacing:var(--letter-spacing-wide)}@media (max-width: 768px){.shortcuts-wrapper{flex-direction:column;gap:var(--space-3);padding:var(--space-3)}.shortcut-item{width:100%;justify-content:space-between}.shortcut-key{min-width:28px;padding:var(--space-1) var(--space-2);font-size:var(--font-size-tiny)}}.modal-backdrop{position:fixed;inset:0;width:100vw;height:100vh;background:var(--color-modal-backdrop);z-index:var(--z-modal-backdrop);cursor:pointer;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.modal-container{width:90%;max-width:800px;max-height:80vh;background:var(--color-background-elevated);border:1px solid var(--color-border-secondary);border-radius:var(--radius-2xl);box-shadow:var(--shadow-2xl);z-index:var(--z-modal);overflow:hidden;position:relative;cursor:default}.modal-close{position:absolute;top:var(--space-5);right:var(--space-5);width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--color-background-tertiary);border:1px solid var(--color-border-secondary);border-radius:50%;color:var(--color-text-secondary);cursor:pointer;z-index:10;transition:all var(--duration-fast) var(--ease-out)}.modal-close:hover{background:var(--color-error);border-color:var(--color-error);color:var(--color-text-primary);box-shadow:0 0 20px var(--color-error-glow)}.modal-content{padding:var(--space-10) var(--space-8);max-height:80vh;overflow-y:auto;color:var(--color-text-primary);font-family:var(--font-mono);line-height:var(--line-height-relaxed)}.modal-content h2{font-size:var(--font-size-h2);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin-top:var(--space-8);margin-bottom:var(--space-4);padding-bottom:var(--space-2);border-bottom:2px solid var(--color-primary);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.modal-content h2:first-child{margin-top:0}.modal-content p{font-size:var(--font-size-body);color:var(--color-text-secondary);margin-bottom:var(--space-4);line-height:var(--line-height-relaxed)}.modal-content p:empty{margin-bottom:var(--space-2)}.modal-content::-webkit-scrollbar{width:8px}.modal-content::-webkit-scrollbar-track{background:var(--color-background-secondary);border-radius:var(--radius-full)}.modal-content::-webkit-scrollbar-thumb{background:var(--color-primary);border-radius:var(--radius-full)}.modal-content::-webkit-scrollbar-thumb:hover{background:var(--color-primary-light)}@media (max-width: 768px){.modal-container{width:95%;max-height:85vh}.modal-content{padding:var(--space-8) var(--space-5)}.modal-content h2{font-size:var(--font-size-body-large)}.modal-content p{font-size:var(--font-size-small)}.modal-close{top:var(--space-3);right:var(--space-3);width:36px;height:36px}}.stats-overlay{position:fixed;inset:0;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:var(--z-modal);display:flex;align-items:center;justify-content:center;padding:var(--space-4)}.stats-container{background:var(--color-background-primary);border:1px solid var(--color-border-secondary);border-radius:var(--radius-xl);box-shadow:var(--shadow-2xl);max-width:800px;width:100%;max-height:90vh;overflow-y:auto;position:relative}.stats-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-6);border-bottom:1px solid var(--color-border-primary)}.stats-title{display:flex;align-items:center;gap:var(--space-3)}.stats-title-icon{color:var(--color-primary-light);filter:drop-shadow(0 0 8px rgba(0,212,255,.5))}.stats-title h2{margin:0;font-size:var(--font-size-h1);font-weight:var(--font-weight-bold);color:var(--color-text-primary);font-family:var(--font-mono)}.stats-close-btn{background:transparent;border:1px solid var(--color-border-primary);border-radius:var(--radius-md);padding:var(--space-2);cursor:pointer;color:var(--color-text-secondary);transition:all var(--duration-fast) var(--ease-out);display:flex;align-items:center;justify-content:center}.stats-close-btn:hover{background:var(--color-background-tertiary);border-color:var(--color-primary);color:var(--color-primary-light);box-shadow:0 0 15px #00d4ff4d}.stats-overall{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4);padding:var(--space-6)}.stat-card{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-5);background:var(--glass-background);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border:1px solid var(--glass-border);border-radius:var(--radius-lg);transition:all var(--duration-normal) var(--ease-out)}.stat-card:hover{transform:translateY(-4px);box-shadow:0 8px 25px #00d4ff33;border-color:var(--color-primary)}.stat-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;background:linear-gradient(135deg,#00d4ff33,#0066ff1a);border-radius:var(--radius-md);color:var(--color-primary-light)}.stat-content{flex:1}.stat-value{font-size:var(--font-size-h1);font-weight:var(--font-weight-bold);font-family:var(--font-mono);color:var(--color-text-primary);line-height:1;margin-bottom:var(--space-1)}.stat-label{font-size:var(--font-size-small);color:var(--color-text-quaternary);text-transform:uppercase;letter-spacing:var(--letter-spacing-wider);font-weight:var(--font-weight-medium)}.stats-categories{padding:var(--space-6);padding-top:0}.categories-title{font-size:var(--font-size-h3);font-weight:var(--font-weight-semibold);color:var(--color-text-secondary);margin-bottom:var(--space-4);font-family:var(--font-mono)}.categories-list{display:flex;flex-direction:column;gap:var(--space-4)}.category-stat-card{padding:var(--space-5);background:var(--color-background-secondary);border:1px solid var(--color-border-primary);border-radius:var(--radius-lg);transition:all var(--duration-normal) var(--ease-out)}.category-stat-card:hover{border-color:var(--color-primary);box-shadow:0 4px 20px #00d4ff26}.category-stat-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-3)}.category-header-left{display:flex;align-items:center;gap:var(--space-3)}.category-stat-header h4{margin:0;font-size:var(--font-size-h3);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);font-family:var(--font-mono)}.reset-category-btn{background:transparent;border:1px solid var(--color-border-primary);border-radius:var(--radius-md);padding:var(--space-2);cursor:pointer;color:var(--color-text-quaternary);transition:all var(--duration-fast) var(--ease-out);display:flex;align-items:center;justify-content:center}.reset-category-btn:hover{background:var(--color-background-tertiary);border-color:var(--color-error);color:var(--color-error);transform:rotate(-15deg)}.category-mastery{font-size:var(--font-size-h2);font-weight:var(--font-weight-bold);font-family:var(--font-mono);color:var(--color-primary-light)}.progress-bar-container{width:100%;height:12px;background:var(--color-background-tertiary);border-radius:var(--radius-full);overflow:hidden;margin-bottom:var(--space-3);border:1px solid var(--color-border-primary)}.progress-bar-fill{height:100%;border-radius:var(--radius-full);transition:width var(--duration-slower) var(--ease-out);box-shadow:0 0 10px currentColor}.category-stat-details{display:flex;gap:var(--space-5);flex-wrap:wrap}.stat-detail{font-size:var(--font-size-small);color:var(--color-text-tertiary)}.stat-detail strong{color:var(--color-text-primary);font-weight:var(--font-weight-semibold)}.stats-footer{padding:var(--space-5) var(--space-6);border-top:1px solid var(--color-border-primary);background:var(--color-background-secondary);border-bottom-left-radius:var(--radius-xl);border-bottom-right-radius:var(--radius-xl)}.stats-footer p{margin:0;font-size:var(--font-size-small);color:var(--color-text-quaternary);text-align:center;line-height:var(--line-height-relaxed)}.stats-container::-webkit-scrollbar{width:8px}.stats-container::-webkit-scrollbar-track{background:var(--color-background-secondary)}.stats-container::-webkit-scrollbar-thumb{background:var(--color-border-tertiary);border-radius:var(--radius-full)}.stats-container::-webkit-scrollbar-thumb:hover{background:var(--color-primary)}@media (max-width: 768px){.stats-overall{grid-template-columns:1fr}.stats-header{padding:var(--space-4)}.stats-title h2{font-size:var(--font-size-h2)}.stats-categories{padding:var(--space-4);padding-top:0}.category-stat-details{flex-direction:column;gap:var(--space-2)}}