:root{--color-primary-50: #f5f3ff;--color-primary-100: #ede9fe;--color-primary-200: #ddd6fe;--color-primary-300: #c4b5fd;--color-primary-400: #a78bfa;--color-primary-500: #8b5cf6;--color-primary-600: #7c3aed;--color-primary-700: #6d28d9;--color-primary-800: #5b21b6;--color-primary-900: #4c1d95;--color-success-50: #ecfdf5;--color-success-100: #d1fae5;--color-success-400: #34d399;--color-success-500: #10b981;--color-success-600: #059669;--color-warning-400: #fb923c;--color-warning-500: #f97316;--color-error-400: #f87171;--color-error-500: #ef4444;--color-error-600: #dc2626;--color-xp-400: #fbbf24;--color-xp-500: #f59e0b;--color-xp-600: #d97706;--color-streak-400: #fb923c;--color-streak-500: #f97316;--color-streak-600: #ea580c;--color-gray-50: #fafafa;--color-gray-100: #f4f4f5;--color-gray-200: #e4e4e7;--color-gray-300: #d4d4d8;--color-gray-400: #a1a1aa;--color-gray-500: #71717a;--color-gray-600: #52525b;--color-gray-700: #3f3f46;--color-gray-800: #27272a;--color-gray-900: #18181b;--color-gray-950: #09090b;--color-bg: #0f0f1a;--color-bg-secondary: #1a1a2e;--color-bg-card: #1e1e32;--color-bg-card-hover: #252542;--color-text: #f4f4f5;--color-text-secondary: #a1a1aa;--color-text-muted: #71717a;--color-border: rgba(255, 255, 255, .1);--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-size-5xl: 3rem;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -2px rgba(0, 0, 0, .2);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .3), 0 4px 6px -4px rgba(0, 0, 0, .2);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .3), 0 8px 10px -6px rgba(0, 0, 0, .2);--shadow-glow-primary: 0 0 20px rgba(139, 92, 246, .4);--shadow-glow-success: 0 0 20px rgba(16, 185, 129, .4);--shadow-glow-xp: 0 0 20px rgba(245, 158, 11, .4);--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6;color:var(--color-text);background:var(--color-bg);min-height:100vh;background-image:radial-gradient(ellipse at top,rgba(139,92,246,.15) 0%,transparent 50%),radial-gradient(ellipse at bottom right,rgba(16,185,129,.1) 0%,transparent 50%)}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--space-4)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.gap-6{gap:var(--space-6)}.gap-8{gap:var(--space-8)}.text-center{text-align:center}.text-sm{font-size:var(--font-size-sm)}.text-lg{font-size:var(--font-size-lg)}.text-xl{font-size:var(--font-size-xl)}.text-2xl{font-size:var(--font-size-2xl)}.text-3xl{font-size:var(--font-size-3xl)}.font-medium{font-weight:500}.font-semibold{font-weight:600}.font-bold{font-weight:700}.font-extrabold{font-weight:800}.text-muted{color:var(--color-text-secondary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-family:var(--font-family);font-size:var(--font-size-base);font-weight:600;line-height:1.5;text-decoration:none;border:none;border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-base);position:relative;overflow:hidden}.btn:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,rgba(255,255,255,.1) 0%,transparent 50%);border-radius:inherit}.btn:active{transform:scale(.97)}.btn-primary{background:linear-gradient(135deg,var(--color-primary-500) 0%,var(--color-primary-600) 100%);color:#fff;box-shadow:var(--shadow-md),var(--shadow-glow-primary)}.btn-primary:hover{background:linear-gradient(135deg,var(--color-primary-400) 0%,var(--color-primary-500) 100%);box-shadow:var(--shadow-lg),0 0 30px #8b5cf680;transform:translateY(-2px)}.btn-success{background:linear-gradient(135deg,var(--color-success-500) 0%,var(--color-success-600) 100%);color:#fff;box-shadow:var(--shadow-md),var(--shadow-glow-success)}.btn-success:hover{background:linear-gradient(135deg,var(--color-success-400) 0%,var(--color-success-500) 100%);box-shadow:var(--shadow-lg),0 0 30px #10b98180;transform:translateY(-2px)}.btn-ghost{background:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-ghost:hover{background:#ffffff0d;border-color:#fff3}.btn-lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-lg);border-radius:var(--radius-2xl)}.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--font-size-sm)}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-6);transition:all var(--transition-base)}.card-hover:hover{background:var(--color-bg-card-hover);border-color:#ffffff26;transform:translateY(-4px);box-shadow:var(--shadow-xl)}.card-glass{background:#1e1e3299;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.1)}.progress-bar{width:100%;height:12px;background:var(--color-gray-800);border-radius:var(--radius-full);overflow:hidden;position:relative}.progress-bar-fill{height:100%;background:linear-gradient(90deg,var(--color-primary-500),var(--color-primary-400));border-radius:var(--radius-full);transition:width var(--transition-slow);position:relative}.progress-bar-fill:after{content:"";position:absolute;top:0;left:0;right:0;height:50%;background:linear-gradient(180deg,rgba(255,255,255,.3) 0%,transparent 100%);border-radius:var(--radius-full) var(--radius-full) 0 0}.progress-bar-success .progress-bar-fill{background:linear-gradient(90deg,var(--color-success-500),var(--color-success-400))}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-5px)}40%,80%{transform:translate(5px)}}@keyframes glow{0%,to{box-shadow:0 0 20px #8b5cf666}50%{box-shadow:0 0 40px #8b5cf699}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes firePulse{0%,to{transform:scale(1);filter:brightness(1)}50%{transform:scale(1.1);filter:brightness(1.2)}}@keyframes xpPop{0%{transform:scale(.5);opacity:0}50%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}@keyframes confetti{0%{transform:translateY(0) rotate(0);opacity:1}to{transform:translateY(-200px) rotate(720deg);opacity:0}}.animate-fade-in{animation:fadeIn var(--transition-slow) ease forwards}.animate-slide-up{animation:slideUp var(--transition-slow) ease forwards}.animate-pulse{animation:pulse 2s ease-in-out infinite}.animate-bounce{animation:bounce 1s ease infinite}.animate-shake{animation:shake .5s ease}.animate-float{animation:float 3s ease-in-out infinite}.animate-glow{animation:glow 2s ease-in-out infinite}.xp-badge{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:linear-gradient(135deg,var(--color-xp-500),var(--color-xp-600));border-radius:var(--radius-full);font-weight:700;color:#fff;box-shadow:var(--shadow-md),var(--shadow-glow-xp)}.xp-badge-icon{font-size:var(--font-size-lg)}.streak-counter{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);background:linear-gradient(135deg,var(--color-streak-500),var(--color-streak-600));border-radius:var(--radius-full);font-weight:700;color:#fff}.streak-icon{font-size:var(--font-size-lg);animation:firePulse 1s ease-in-out infinite}.language-card{display:flex;flex-direction:column;align-items:center;gap:var(--space-4);padding:var(--space-8);background:var(--color-bg-card);border:2px solid var(--color-border);border-radius:var(--radius-2xl);cursor:pointer;transition:all var(--transition-base);text-decoration:none;color:var(--color-text)}.language-card:hover{border-color:var(--color-primary-500);transform:translateY(-8px);box-shadow:var(--shadow-xl),var(--shadow-glow-primary)}.language-card-icon{font-size:4rem;animation:float 3s ease-in-out infinite}.language-card-esperanto:hover{border-color:var(--color-success-500);box-shadow:var(--shadow-xl),var(--shadow-glow-success)}.language-card-tokipona:hover{border-color:var(--color-xp-500);box-shadow:var(--shadow-xl),var(--shadow-glow-xp)}.lesson-card{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-4) var(--space-5);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-base);text-decoration:none;color:var(--color-text)}.lesson-card:hover:not(.lesson-card-locked){background:var(--color-bg-card-hover);border-color:var(--color-primary-400);transform:translate(8px)}.lesson-card-locked{opacity:.5;cursor:not-allowed}.lesson-card-completed{border-color:var(--color-success-500);background:#10b9811a}.lesson-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;background:var(--color-bg-secondary);border-radius:var(--radius-lg)}.lesson-card-completed .lesson-icon{background:var(--color-success-500)}.exercise-container{max-width:600px;margin:0 auto;padding:var(--space-8) var(--space-4)}.exercise-prompt{font-size:var(--font-size-2xl);font-weight:600;margin-bottom:var(--space-8);text-align:center}.exercise-hint{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin-top:var(--space-2)}.option-btn{width:100%;padding:var(--space-4) var(--space-6);background:var(--color-bg-card);border:2px solid var(--color-border);border-radius:var(--radius-xl);color:var(--color-text);font-size:var(--font-size-lg);font-weight:500;text-align:left;cursor:pointer;transition:all var(--transition-fast)}.option-btn:hover:not(:disabled){border-color:var(--color-primary-400);background:var(--color-bg-card-hover)}.option-btn.selected{border-color:var(--color-primary-500);background:#8b5cf633}.option-btn.correct{border-color:var(--color-success-500);background:#10b98133;animation:pulse .5s ease}.option-btn.incorrect{border-color:var(--color-error-500);background:#ef444433;animation:shake .5s ease}.translation-input{width:100%;padding:var(--space-4);background:var(--color-bg-card);border:2px solid var(--color-border);border-radius:var(--radius-xl);color:var(--color-text);font-size:var(--font-size-lg);font-family:var(--font-family);outline:none;transition:all var(--transition-fast)}.translation-input:focus{border-color:var(--color-primary-500);box-shadow:0 0 0 3px #8b5cf633}.translation-input.correct{border-color:var(--color-success-500);box-shadow:0 0 0 3px #10b98133}.translation-input.incorrect{border-color:var(--color-error-500);box-shadow:0 0 0 3px #ef444433}.word-bank{display:flex;flex-wrap:wrap;gap:var(--space-2);padding:var(--space-4);min-height:60px;background:var(--color-bg-secondary);border-radius:var(--radius-xl);border:2px dashed var(--color-border)}.word-chip{padding:var(--space-2) var(--space-4);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text);font-size:var(--font-size-base);font-weight:500;cursor:pointer;transition:all var(--transition-fast);-webkit-user-select:none;user-select:none}.word-chip:hover{background:var(--color-bg-card-hover);border-color:var(--color-primary-400)}.word-chip.used{opacity:.3;cursor:not-allowed}.matching-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}.match-item{padding:var(--space-4);background:var(--color-bg-card);border:2px solid var(--color-border);border-radius:var(--radius-lg);text-align:center;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.match-item:hover:not(.matched):not(:disabled){border-color:var(--color-primary-400)}.match-item.selected{border-color:var(--color-primary-500);background:#8b5cf633}.match-item.matched{border-color:var(--color-success-500);background:#10b98133;cursor:default}.feedback{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-xl);font-weight:600;animation:slideUp var(--transition-fast) ease}.feedback-correct{background:#10b98133;border:1px solid var(--color-success-500);color:var(--color-success-400)}.feedback-incorrect{background:#ef444433;border:1px solid var(--color-error-500);color:var(--color-error-400)}.stat-card{display:flex;flex-direction:column;align-items:center;padding:var(--space-6);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl)}.stat-value{font-size:var(--font-size-3xl);font-weight:800;background:linear-gradient(135deg,var(--color-primary-400),var(--color-primary-600));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:var(--font-size-sm);color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.celebration-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-fast) ease}.celebration-modal{background:var(--color-bg-card);border:2px solid var(--color-primary-500);border-radius:var(--radius-2xl);padding:var(--space-10);text-align:center;max-width:400px;animation:slideUp var(--transition-slow) ease,glow 2s ease-in-out infinite}.celebration-icon{font-size:5rem;margin-bottom:var(--space-4);animation:bounce 1s ease infinite}.celebration-title{font-size:var(--font-size-3xl);font-weight:800;margin-bottom:var(--space-2);background:linear-gradient(135deg,var(--color-xp-400),var(--color-primary-400));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.celebration-xp{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);background:linear-gradient(135deg,var(--color-xp-500),var(--color-xp-600));border-radius:var(--radius-full);font-size:var(--font-size-xl);font-weight:700;color:#fff;margin:var(--space-6) 0;animation:xpPop .5s ease}.achievement-badge{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-4);text-align:center}.achievement-icon{width:64px;height:64px;display:flex;align-items:center;justify-content:center;font-size:2rem;background:linear-gradient(135deg,var(--color-primary-500),var(--color-primary-600));border-radius:var(--radius-xl);box-shadow:var(--shadow-md)}.achievement-icon.locked{background:var(--color-gray-700);opacity:.5;filter:grayscale(100%)}.achievement-name{font-size:var(--font-size-sm);font-weight:600}.header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4);background:#0f0f1acc;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:100}.header-logo{font-size:var(--font-size-xl);font-weight:800;background:linear-gradient(135deg,var(--color-primary-400),var(--color-success-400));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none}.header-stats{display:flex;align-items:center;gap:var(--space-4)}.lesson-footer{position:fixed;bottom:0;left:0;right:0;padding:var(--space-4);background:#0f0f1af2;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--color-border);display:flex;justify-content:center;gap:var(--space-4)}@media(max-width:768px){.container{padding:0 var(--space-3)}.exercise-prompt{font-size:var(--font-size-xl)}.language-card{padding:var(--space-6)}.language-card-icon{font-size:3rem}.matching-grid{grid-template-columns:1fr}.header-stats{gap:var(--space-2)}.xp-badge,.streak-counter{padding:var(--space-1) var(--space-3);font-size:var(--font-size-sm)}}main.svelte-12qhfyh{min-height:calc(100vh - 72px);padding-bottom:var(--space-8)}.header-stats-mobile-hint.svelte-12qhfyh{display:none}.mobile-stats-dropdown.svelte-12qhfyh{position:absolute;top:100%;left:0;right:0;background:var(--color-bg-secondary);border-bottom:2px solid var(--color-border);padding:var(--space-6);box-shadow:var(--shadow-xl);z-index:100;border-top:1px solid rgba(255,255,255,.05)}.dropdown-content.svelte-12qhfyh{max-width:400px;margin:0 auto;display:flex;flex-direction:column;gap:var(--space-6)}.stats-row.svelte-12qhfyh{display:flex;justify-content:center;gap:var(--space-8)}.streak-display.svelte-12qhfyh{display:flex;align-items:center;gap:var(--space-3)}.streak-fire.svelte-12qhfyh{font-size:2.5rem;filter:drop-shadow(0 0 10px rgba(249,115,22,.5))}.streak-info.svelte-12qhfyh{display:flex;align-items:baseline;gap:var(--space-2)}.streak-value.svelte-12qhfyh{font-size:var(--font-size-2xl);font-weight:800;line-height:1}.streak-label.svelte-12qhfyh{font-size:var(--font-size-xs);color:var(--color-text-secondary);text-transform:uppercase}.dropdown-level.svelte-12qhfyh{background:var(--color-bg-card);padding:var(--space-4);border-radius:var(--radius-lg);border:1px solid var(--color-border)}.level-header.svelte-12qhfyh{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-2)}.level-badge-sm.svelte-12qhfyh{background:var(--color-primary-500);color:#fff;padding:2px 8px;border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:700}.xp-progress-text.svelte-12qhfyh{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.level-progress-bar.svelte-12qhfyh{height:8px;background:var(--color-bg);border-radius:var(--radius-full);overflow:hidden}.level-progress-fill.svelte-12qhfyh{height:100%;background:linear-gradient(90deg,var(--color-primary-400),var(--color-primary-600));border-radius:var(--radius-full)}.btn-full.svelte-12qhfyh{width:100%}@media(max-width:768px){.header.svelte-12qhfyh{-webkit-tap-highlight-color:transparent}.header.svelte-12qhfyh:active{background:transparent}.desktop-only.svelte-12qhfyh{display:none}.header-stats-mobile-hint.svelte-12qhfyh{display:block;margin-right:var(--space-2)}.hamburger-icon.svelte-12qhfyh{display:flex;flex-direction:column;justify-content:space-between;width:24px;height:18px;background:transparent;border:none;padding:0;cursor:pointer;-webkit-tap-highlight-color:transparent;outline:none}.hamburger-icon.svelte-12qhfyh span:where(.svelte-12qhfyh){display:block;width:100%;height:2px;background-color:var(--color-text);border-radius:2px;transition:all .3s ease}}