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a{color:var(--text-secondary);font-size:var(--text-base);font-weight:var(--font-medium);transition:color var(--duration-fast) var(--ease-out)}.footer-links a:hover{color:var(--primary)}.footer-bottom{text-align:center;padding-top:var(--space-8);border-top:1px solid var(--border);color:var(--text-tertiary);font-size:var(--text-sm)}.footer-bottom p{margin:var(--space-2) 0}.footer-credit-link{color:var(--primary);font-weight:var(--font-semibold);transition:color var(--duration-fast) var(--ease-out)}.footer-credit-link:hover{color:var(--primary-hover);text-decoration:underline}@media(max-width:1024px){.hero-content{grid-template-columns:1fr;text-align:center}.hero-text{margin:0 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50%)}.auth-container{width:100%;max-width:480px}.auth-content{width:100%}.auth-header{text-align:center;margin-bottom:var(--space-8)}.auth-title{font-family:var(--font-display);font-size:var(--text-3xl);font-weight:var(--font-extrabold);color:var(--text-primary);margin-bottom:var(--space-2)}.auth-subtitle{font-size:var(--text-lg);color:var(--text-secondary)}.auth-card{padding:var(--space-8);box-shadow:var(--shadow-xl)}.auth-form{display:flex;flex-direction:column;gap:var(--space-6)}.form-group{display:flex;flex-direction:column;gap:var(--space-2)}.form-label{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-primary)}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:14px;color:var(--text-tertiary);pointer-events:none}.input-icon-button{position:absolute;right:var(--space-4);color:var(--text-tertiary);background:none;border:none;cursor:pointer;padding:var(--space-2);display:flex;align-items:center;justify-content:center;transition:color 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ease-out}.score-ring-progress{stroke:var(--primary)}.score-percentage{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.score-value{font-size:var(--text-4xl);font-weight:var(--font-extrabold);color:var(--text-primary);line-height:1}.score-grade{font-size:var(--text-2xl);font-weight:var(--font-bold);display:none}.score-message{display:flex;flex-direction:column;gap:var(--space-2)}.message-title{font-family:var(--font-display);font-size:var(--text-2xl);font-weight:var(--font-extrabold);color:var(--text-primary)}.message-subtitle{font-size:var(--text-lg);color:var(--text-secondary)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}.stat-card{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-6);transition:all var(--duration-normal) var(--ease-out)}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.stat-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);flex-shrink:0}.stat-details{display:flex;flex-direction:column;gap:var(--space-1)}.stat-value{font-size:var(--text-2xl);font-weight:var(--font-bold);color:var(--text-primary);line-height:1}.results-actions{display:flex;gap:var(--space-4);justify-content:center;flex-wrap:wrap}.tip-card{padding:var(--space-6);background:var(--info-bg);border:2px solid var(--info);text-align:center}.tip-title{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:var(--space-3)}.tip-text{font-size:var(--text-base);color:var(--text-secondary);line-height:var(--leading-relaxed);margin:0}@media(max-width:768px){.results-quiz-title{font-size:var(--text-2xl)}.score-card{padding:var(--space-8)}.score-circle,.score-ring{width:180px;height:180px}.score-value{font-size:var(--text-3xl)}.message-title{font-size:var(--text-xl)}.stats-grid{grid-template-columns:1fr;gap:var(--space-4)}.results-actions{flex-direction:column}.results-actions button{width:100%}}@media(max-width:640px){.score-content{gap:var(--space-6)}.score-circle,.score-ring{width:160px;height:160px}.score-value{font-size:var(--text-2xl)}.score-grade{font-size:var(--text-xl)}}@keyframes scoreCount{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}.score-value{animation:scoreCount .8s var(--ease-out) .5s both}.score-grade{animation:scoreCount .8s var(--ease-out) .7s both}@media(prefers-reduced-motion:reduce){.stat-card:hover{transform:none}.score-value,.score-grade{animation:none}.score-ring-progress{transition:none}.confetti-particle{display:none}}.leaderboard-page{min-height:100vh;padding:var(--space-8) 0;background:var(--background)}.leaderboard-container{max-width:1100px;margin:0 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0}.podium{display:grid;grid-template-columns:1fr 1fr 1fr;gap:var(--space-6);align-items:end;max-width:800px;margin:0 auto}.podium-position{position:relative}.podium-position.first{order:2}.podium-position.second{order:1}.podium-position.third{order:3}.podium-card{text-align:center;padding:var(--space-8) var(--space-6);position:relative;transition:all var(--duration-normal) var(--ease-out)}.podium-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-2xl)}.podium-card.champion{padding-top:var(--space-12);background:linear-gradient(135deg,var(--primary-alpha-10),var(--secondary));border:2px solid var(--primary)}.champion-crown{position:absolute;top:-20px;left:50%;transform:translate(-50%);font-size:2.5rem;animation:float 3s ease-in-out infinite}.podium-rank{font-size:3rem;margin-bottom:var(--space-4)}.podium-avatar{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-weight:var(--font-extrabold);font-size:var(--text-2xl);border-radius:var(--radius-full);margin:0 auto var(--space-4);box-shadow:var(--shadow-lg)}.champion-avatar{width:100px;height:100px;font-size:var(--text-3xl);box-shadow:var(--shadow-glow)}.podium-username{font-size:var(--text-lg);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:var(--space-2)}.podium-score{font-size:var(--text-2xl);font-weight:var(--font-extrabold);color:var(--primary);margin-bottom:var(--space-1)}.podium-label{font-size:var(--text-sm);color:var(--text-secondary)}.rankings-card{padding:0;overflow:hidden}.rankings-header{padding:var(--space-6);background:var(--surface-hover);border-bottom:1px solid var(--border)}.rankings-title{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-primary)}.rankings-list{display:flex;flex-direction:column}.ranking-item{display:grid;grid-template-columns:80px 1fr auto;align-items:center;gap:var(--space-6);padding:var(--space-6);border-bottom:1px solid var(--border);transition:all var(--duration-normal) var(--ease-out)}.ranking-item:last-child{border-bottom:none}.ranking-item:hover{background:var(--surface-hover);transform:translate(4px)}.ranking-item.current{background:var(--primary-alpha-10);border:2px solid var(--primary);border-radius:var(--radius-md);margin:var(--space-4) 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solid var(--primary)}.current-user-header{display:flex;align-items:center;gap:var(--space-2);margin-bottom:var(--space-4);color:var(--primary);font-weight:var(--font-semibold)}@media(max-width:1024px){.podium{max-width:600px;gap:var(--space-4)}.podium-avatar{width:60px;height:60px;font-size:var(--text-lg)}.champion-avatar{width:80px;height:80px;font-size:var(--text-xl)}}@media(max-width:768px){.page-title{font-size:var(--text-2xl)}.podium{grid-template-columns:1fr;gap:var(--space-4);max-width:400px}.podium-position.first,.podium-position.second,.podium-position.third{order:initial}.filters-section{gap:var(--space-4)}.filter-group{flex-direction:column;align-items:flex-start}.filter-buttons{width:100%}.filter-buttons button{flex:1}.ranking-item{grid-template-columns:60px 1fr 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var(--ease-out)}.avatar-upload-button:hover{background:var(--primary-hover);transform:scale(1.1)}.profile-info{display:flex;flex-direction:column;gap:var(--space-2)}.profile-username{font-size:var(--text-2xl);font-weight:var(--font-extrabold);color:var(--text-primary)}.profile-email{font-size:var(--text-base);color:var(--text-secondary)}.profile-level{display:flex;align-items:center;gap:var(--space-3)}.level-badge{padding:var(--space-2) var(--space-4);background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-size:var(--text-sm);font-weight:var(--font-bold);border-radius:var(--radius-full)}.xp-text{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--text-secondary)}.stats-section{display:flex;flex-direction:column;gap:var(--space-6);padding:var(--space-6);background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border)}.section-title{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--text-primary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:var(--space-4)}.stat-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);padding:var(--space-6);text-align:center}.stat-content{display:flex;flex-direction:column;gap:var(--space-1)}.stat-value{font-size:var(--text-3xl);font-weight:var(--font-extrabold);color:var(--text-primary);line-height:1}.activity-card{padding:var(--space-8)}.activity-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-6);flex-wrap:wrap;gap:var(--space-4)}.activity-legend{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-xs);color:var(--text-tertiary)}.legend-squares{display:flex;gap:2px}.legend-square{width:12px;height:12px;border-radius:2px}.activity-calendar{display:grid;grid-template-columns:repeat(13,1fr);gap:4px;max-width:800px}.activity-day{aspect-ratio:1;border-radius:2px;transition:all 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var(--ease-out)}.achievement-card.locked{opacity:.5;filter:grayscale(1)}.achievement-icon{font-size:3rem;flex-shrink:0}.achievement-info{flex:1}.achievement-name{font-size:var(--text-lg);font-weight:var(--font-bold);color:var(--text-primary);margin-bottom:var(--space-1)}.achievement-description{font-size:var(--text-sm);color:var(--text-secondary)}.lock-overlay{position:absolute;top:var(--space-4);right:var(--space-4);font-size:1.5rem}.settings-card{padding:var(--space-8)}.settings-header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-6);color:var(--text-primary)}.setting-item{display:flex;justify-content:space-between;align-items:center;gap:var(--space-6);padding:var(--space-4) 0;border-bottom:1px solid var(--border)}.setting-item:last-child{border-bottom:none}.setting-label{font-size:var(--text-base);font-weight:var(--font-semibold);color:var(--text-primary);display:block;margin-bottom:var(--space-1)}.setting-description{font-size:var(--text-sm);color:var(--text-secondary)}.setting-select{padding:var(--space-2) var(--space-4);background:var(--background);color:var(--text-primary);border:2px solid var(--border);border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:var(--font-medium);cursor:pointer;transition:all var(--duration-fast) var(--ease-out)}.setting-select:focus{outline:none;border-color:var(--primary)}.toggle-switch{position:relative;display:inline-block;width:52px;height:28px}.toggle-slider{position:absolute;cursor:pointer;inset:0;background-color:var(--border);transition:var(--duration-normal);border-radius:var(--radius-full)}.toggle-slider:before{position:absolute;content:"";height:20px;width:20px;left:4px;bottom:4px;background-color:#fff;transition:var(--duration-normal);border-radius:50%}input:checked+.toggle-slider{background-color:var(--primary)}input:checked+.toggle-slider:before{transform:translate(24px)}@media(max-width:768px){.profile-header{flex-direction:column;align-items:flex-start}.profile-avatar-section{width:100%}.stats-grid{grid-template-columns:repeat(2,1fr)}.activity-calendar{grid-template-columns:repeat(7,1fr)}.achievements-grid{grid-template-columns:1fr}.setting-item{flex-direction:column;align-items:flex-start}}@media(prefers-reduced-motion:reduce){.activity-day:hover,.avatar-upload-button:hover{transform:none}}.admin-profile-page{min-height:calc(100vh 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ease}.permission-item.active{border-color:var(--success)}.permission-item:hover{background:var(--bg-secondary);transform:translate(4px)}.permission-icon{font-size:1.5rem;flex-shrink:0}.permission-details h3{font-size:var(--text-base);font-weight:700;color:var(--text-primary);margin:0 0 var(--space-1) 0}.permission-details p{font-size:var(--text-sm);color:var(--text-secondary);margin:0}.admin-settings-card{padding:var(--space-8)}.settings-header{display:flex;align-items:center;gap:var(--space-3);margin-bottom:var(--space-6);color:var(--primary)}.settings-grid{display:flex;flex-direction:column;gap:var(--space-6)}.setting-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4);background:var(--bg-tertiary);border-radius:var(--radius-lg);gap:var(--space-4)}.setting-label{display:block;font-size:var(--text-base);font-weight:600;color:var(--text-primary);margin-bottom:var(--space-1)}.setting-description{font-size:var(--text-sm);color:var(--text-secondary);margin:0}.setting-select{padding:var(--space-2) var(--space-4);background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text-primary);font-size:var(--text-sm);cursor:pointer;transition:all .2s ease}.setting-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg)}.toggle-switch{position:relative;display:inline-block;width:54px;height:28px;cursor:pointer}.toggle-slider{position:absolute;inset:0;background:var(--bg-secondary);border:2px solid var(--border);border-radius:var(--radius-full);transition:all .3s ease}.toggle-slider:before{content:"";position:absolute;height:20px;width:20px;left:2px;bottom:2px;background:var(--text-secondary);border-radius:50%;transition:all .3s ease}.toggle-switch input:checked+.toggle-slider:before{transform:translate(26px);background:#fff}@media(max-width:768px){.admin-profile-header{flex-direction:column;align-items:flex-start}.admin-profile-avatar-section{flex-direction:column;align-items:center;text-align:center}.admin-profile-avatar{width:100px;height:100px;font-size:2.5rem}.admin-stats-grid,.permissions-grid{grid-template-columns:1fr}.setting-item{flex-direction:column;align-items:flex-start}}.analytics-page{min-height:100vh;padding:var(--space-8) 0;background:var(--background)}.analytics-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:column;gap:var(--space-8)}.analytics-header{display:flex;flex-direction:column;align-items:center;gap:var(--space-6);text-align:center}.header-content{width:100%;display:flex;flex-direction:column;align-items:center}.analytics-icon-wrapper{width:80px;height:80px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;border-radius:var(--radius-lg);margin-bottom:var(--space-4);box-shadow:var(--shadow-lg)}.page-title{font-size:var(--text-3xl);font-weight:var(--font-extrabold);color:var(--text-primary);margin-bottom:var(--space-2)}.page-subtitle{font-size:var(--text-lg);color:var(--text-secondary)}.time-range-selector{display:flex;align-items:center;gap:var(--space-3);flex-wrap:wrap;justify-content:center}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--space-6)}.stat-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);padding:var(--space-6);transition:all 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