:root{--bg-primary: #FFF9F0;--color-brand: #FF6B35;--color-brand-hover: #FF7F50;--color-brand-shadow: rgba(255, 107, 53, .3);--color-yellow: #FFD23F;--color-teal: #06D6A0;--color-teal-shadow: rgba(6, 214, 160, .3);--color-pink: #FF6B9D;--color-text: #2D3047;--color-text-secondary: #6B7280;--color-card-bg: #FFFFFF;--color-card-border: #F3F4F6;--color-card-shadow: rgba(0, 0, 0, .1);--font-display: "Baloo 2", cursive;--font-body: "Inter", sans-serif;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0,0,0,.06);--shadow-md: 0 4px 16px rgba(0,0,0,.08);--shadow-lg: 0 10px 40px rgba(0,0,0,.1);--max-width: 640px;--transition-fast: .15s ease;--transition-normal: .3s ease}*,*: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-body);background:var(--bg-primary);color:var(--color-text);min-height:100vh;overflow-x:hidden;position:relative}.confetti-bg{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden}.confetti-bg .confetti-piece{position:absolute;width:10px;height:10px;opacity:.25;animation:confettiFall linear infinite}@keyframes confettiFall{0%{transform:translateY(-10vh) rotate(0)}to{transform:translateY(110vh) rotate(720deg)}}.bunting{width:100%;height:60px;overflow:hidden;margin-bottom:.5rem;animation:buntingSway 4s ease-in-out infinite}.bunting svg{width:100%;height:100%}@keyframes buntingSway{0%,to{transform:rotate(-.5deg)}50%{transform:rotate(.5deg)}}.balloon{position:fixed;font-size:2.5rem;opacity:.3;pointer-events:none;z-index:0;animation:balloonFloat 6s ease-in-out infinite}.balloon-1{top:15%;left:5%;animation-delay:0s}.balloon-2{top:25%;right:8%;animation-delay:2s;animation-duration:7s}.balloon-3{top:60%;left:8%;animation-delay:4s;animation-duration:5s}@keyframes balloonFloat{0%,to{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-15px) rotate(3deg)}}.container{position:relative;z-index:1;max-width:var(--max-width);margin:0 auto;padding:1rem 1.25rem 2rem;display:flex;flex-direction:column;align-items:center;min-height:100vh}.site-header{text-align:center;margin-bottom:1.5rem}.site-title{font-family:var(--font-display);font-size:2.25rem;font-weight:800;color:var(--color-brand);line-height:1.2;text-shadow:2px 2px 0px rgba(255,107,53,.15)}.site-subtitle{font-family:var(--font-body);font-size:1rem;color:var(--color-text-secondary);margin-top:.25rem}.card-area{width:100%;display:flex;justify-content:center;align-items:center;min-height:380px;margin-bottom:1.5rem;position:relative}.card-deck{position:relative;width:280px;height:380px;perspective:1000px}.deck-card{position:absolute;width:280px;height:380px;border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--color-brand),var(--color-yellow));box-shadow:var(--shadow-md);border:2px solid var(--color-card-border);transition:transform var(--transition-normal)}.deck-card-1{transform:rotate(-3deg) translateY(4px);opacity:.6;z-index:1}.deck-card-2{transform:rotate(2deg) translateY(2px);opacity:.8;z-index:2}.deck-card-3{transform:rotate(0);opacity:1;z-index:3;display:flex;align-items:center;justify-content:center}.deck-card-3:after{content:"❓";font-size:4rem;color:#fff;opacity:.9}.card-deck.idle{animation:deckBreathe 3s ease-in-out infinite}@keyframes deckBreathe{0%,to{transform:translateY(0)}50%{transform:translateY(-6px)}}.word-card{position:absolute;width:280px;height:380px;perspective:1000px;z-index:10}.card-inner{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform .6s cubic-bezier(.34,1.56,.64,1)}.card-inner.flipped{transform:rotateY(180deg)}.card-face{position:absolute;width:100%;height:100%;backface-visibility:hidden;border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--color-card-bg);box-shadow:var(--shadow-lg);border:1px solid var(--color-card-border)}.card-back{background:linear-gradient(135deg,var(--color-brand),var(--color-yellow))}.card-back-icon{font-size:5rem;color:#fff;opacity:.9}.card-front{transform:rotateY(180deg);padding:1.5rem;text-align:center;gap:.75rem}.card-category{display:inline-block;padding:.25rem .75rem;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:#fff;background:var(--color-brand)}.card-emoji{font-size:6rem;line-height:1;margin:.5rem 0}.card-word{font-family:var(--font-display);font-size:2.5rem;font-weight:700;color:var(--color-text);line-height:1.2}.card-difficulty{display:flex;align-items:center;gap:.5rem;font-size:.875rem;color:var(--color-text-secondary)}.difficulty-stars{color:var(--color-yellow);letter-spacing:.1em}.word-card.entering .card-inner{animation:cardEnter .6s cubic-bezier(.34,1.56,.64,1) forwards}@keyframes cardEnter{0%{opacity:0;transform:translate(15px) translateY(10px) rotateY(0) scale(.9)}to{opacity:1;transform:translate(0) translateY(0) rotateY(180deg) scale(1)}}.word-card.landed .card-inner{animation:cardPulse .3s ease .1s}@keyframes cardPulse{0%{transform:rotateY(180deg) scale(1)}50%{transform:rotateY(180deg) scale(1.03)}to{transform:rotateY(180deg) scale(1)}}.action-area{display:flex;gap:.75rem;margin-bottom:1.5rem;flex-wrap:wrap;justify-content:center}.btn{font-family:var(--font-display);font-weight:600;border:none;cursor:pointer;transition:all var(--transition-fast);display:inline-flex;align-items:center;gap:.5rem;white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important}.btn-primary{background:var(--color-brand);color:#fff;padding:0 2rem;height:56px;border-radius:var(--radius-full);font-size:1.25rem;box-shadow:0 4px 16px var(--color-brand-shadow)}.btn-primary:hover:not(:disabled){background:var(--color-brand-hover);box-shadow:0 6px 20px var(--color-brand-shadow);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:scale(.95);box-shadow:0 2px 8px var(--color-brand-shadow)}.btn-timer{background:var(--color-teal);color:#fff;padding:0 1.5rem;height:48px;border-radius:var(--radius-full);font-size:1rem;box-shadow:0 4px 12px var(--color-teal-shadow)}.btn-timer:hover:not(:disabled){background:#05c795;box-shadow:0 6px 16px var(--color-teal-shadow);transform:translateY(-1px)}.btn-timer:active:not(:disabled){transform:scale(.95)}.btn-icon{font-size:1.1em}.timer-section{display:flex;flex-direction:column;align-items:center;margin-bottom:1.5rem;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.timer-ring{position:relative;width:140px;height:140px}.timer-svg{width:100%;height:100%;transform:rotate(-90deg)}.timer-track{fill:none;stroke:var(--color-card-border);stroke-width:8;stroke-linecap:round}.timer-progress{fill:none;stroke:var(--color-teal);stroke-width:8;stroke-linecap:round;stroke-dasharray:339.292;stroke-dashoffset:0;transition:stroke-dashoffset 1s linear,stroke .3s ease}.timer-progress.warning{stroke:var(--color-brand)}.timer-ring.shake{animation:shake .4s ease}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}50%{transform:translate(4px)}75%{transform:translate(-4px)}}.timer-number{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-family:var(--font-display);font-size:2.5rem;font-weight:700;color:var(--color-text)}.timer-number.warning{color:var(--color-brand)}.timer-label{font-size:.875rem;color:var(--color-text-secondary);margin-top:.5rem}.timer-timesup{font-family:var(--font-display);font-size:1.5rem;font-weight:700;color:var(--color-brand);margin-top:.5rem;animation:timesUpPop .4s cubic-bezier(.34,1.56,.64,1)}@keyframes timesUpPop{0%{opacity:0;transform:scale(.5)}to{opacity:1;transform:scale(1)}}.filter-section{width:100%;max-width:500px;margin-bottom:1.5rem}.filter-toggle{width:100%;padding:.75rem 1rem;background:var(--color-card-bg);border:1px solid 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var(--transition-fast)}.timer-select:focus{outline:none;border-color:var(--color-brand)}.confetti-burst{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:100;overflow:hidden}.confetti-burst .burst-piece{position:absolute;width:12px;height:12px;top:50%;left:50%;opacity:1}.seo-content{width:100%;max-width:560px;margin-bottom:2rem}.seo-details{background:var(--color-card-bg);border:1px solid var(--color-card-border);border-radius:var(--radius-md);margin-bottom:.75rem;overflow:hidden}.seo-details summary{padding:.875rem 1rem;font-family:var(--font-body);font-weight:600;font-size:.95rem;color:var(--color-text);cursor:pointer;list-style:none;display:flex;align-items:center;gap:.5rem;transition:background var(--transition-fast)}.seo-details summary:hover{background:#fff5eb}.seo-details summary .seo-heading{font-size:inherit;font-weight:inherit;margin:0;display:inline;color:inherit}.seo-details summary::-webkit-details-marker{display:none}.seo-text{padding:0 1rem 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480px){.site-title{font-size:1.75rem}.card-area{min-height:340px}.word-card,.card-deck,.deck-card{width:240px;height:326px}.card-emoji{font-size:5rem}.card-word{font-size:2rem}.action-area{flex-direction:column;align-items:center;width:100%}.btn-primary,.btn-timer{width:100%;max-width:280px;justify-content:center}.timer-ring{width:120px;height:120px}.timer-number{font-size:2rem}.difficulty-options{flex-direction:column}.diff-btn{flex-direction:row;justify-content:center;gap:.5rem}.balloon{font-size:1.8rem}}@media (min-width: 481px) and (max-width: 768px){.container{padding:1.5rem 2rem}.word-card,.card-deck,.deck-card{width:260px;height:353px}}.hidden{display:none!important}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}