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2.5s ease infinite}.video-placeholder__label{position:absolute;bottom:1rem;left:1rem;right:1rem;text-align:center;color:#fff;font-weight:700;font-size:.9rem;text-shadow:0 2px 8px rgba(0,0,0,.4)}.confetti-root{position:fixed;top:0;right:0;bottom:0;left:0;pointer-events:none;z-index:200;overflow:hidden}.confetti-piece{position:absolute;top:-12px;width:8px;height:14px;border-radius:2px;animation:confettiFall var(--fall-dur, 3.2s) linear forwards;animation-delay:var(--fall-delay, 0s)}.result-trophy{animation:trophyBounce 1.2s ease infinite}.timer-ring-wrap{position:relative;width:48px;height:48px;flex-shrink:0}.timer-ring-wrap svg{width:100%;height:100%;transform:rotate(-90deg)}.timer-ring-label{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;font-size:.72rem;font-weight:800;color:var(--primary)}.hero-illus-panel{display:flex;justify-content:center;align-items:center}.hero-illus-svg{width:min(100%,420px);height:auto;animation:floatSlow 7s ease-in-out infinite}.avatar-illus{width:64px;height:64px;border-radius:50%;overflow:hidden;flex-shrink:0}.avatar-illus svg{width:100%;height:100%}.activity-badge{display:inline-flex;align-items:center;gap:.35rem;font-size:.72rem;font-weight:700;padding:.25rem .6rem;border-radius:999px;background:var(--primary-light);color:var(--primary-dark)}.activity-badge svg{width:14px;height:14px}.css-hero-banner{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:160px;background:var(--gradient-hero);border:1px solid rgba(255,255,255,.15);box-shadow:var(--shadow-lg)}.css-hero-banner__mesh{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at 15% 20%,rgba(255,255,255,.22) 0%,transparent 45%),radial-gradient(circle at 85% 80%,rgba(0,240,144,.25) 0%,transparent 50%),radial-gradient(circle at 70% 15%,rgba(10,132,255,.2) 0%,transparent 40%);animation:meshShift 14s ease-in-out infinite}.css-hero-banner__content{position:relative;z-index:1;padding:1.35rem 1.5rem;color:#fff;display:flex;align-items:center;gap:1rem}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.vocab-flip-inner{transition:none}.card-lift:hover{transform:none}.stagger-grid>.stagger-item{opacity:1;animation:none}}