:root{--kanji-nav-height: 80px}@media (max-width: 768px){:root{--kanji-nav-height: 60px}}.welcome-screen{flex-grow:1;display:flex;justify-content:center;align-items:center;box-sizing:border-box;min-height:auto;background:#000;padding-block:clamp(24px,5vh,72px);padding-inline:20px;padding-bottom:max(2rem,env(safe-area-inset-bottom))}.welcome-content{background:#ffffff1a;border:2px solid rgba(255,255,255,.2);color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:24px;padding:60px 40px;text-align:center;box-shadow:0 20px 60px #00000026;border:1px solid rgba(255,255,255,.2);max-width:600px;width:100%;transform:translateY(0);animation:fadeInUp .8s ease-out}.welcome-header{margin-bottom:1.5rem}.kanji-icons{font-size:4rem;margin-bottom:.5rem;opacity:.9;animation:float 3s ease-in-out infinite}.welcome-text{font-size:1.8rem;font-weight:300;margin-bottom:.2rem;letter-spacing:2px;text-transform:uppercase}.title-text{font-size:4rem;background:#6866ea;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:700;line-height:1;margin-bottom:.5rem;text-shadow:0 4px 8px rgba(0,0,0,.1)}.welcome-content h1{display:none}.welcome-content p{font-size:1.3rem;margin-bottom:2.5rem;line-height:1.6;font-weight:400}.start-game-btn{background:linear-gradient(135deg,#4caf50,#45a049);color:#fff;border:none;padding:10px 45px;font-size:1.2rem;border-radius:25px;cursor:pointer;transition:all .3s ease;font-weight:600;letter-spacing:.5px;position:relative;overflow:hidden}.start-game-btn:hover{background:linear-gradient(135deg,#45a049,#388e3c);transform:translateY(-3px)}.start-game-btn[style*="background-color: #a90000"]{background:linear-gradient(135deg,#dc3545,#c82333)!important}.start-game-btn[style*="background-color: #a90000"]:hover{background:linear-gradient(135deg,#c82333,#bd2130)!important}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.welcome-screen{min-height:calc(100vh - 60px);padding:1rem 20px 2rem}.welcome-content{padding:40px 30px}.welcome-content p{font-size:1.1rem;margin-bottom:2rem}.kanji-icons{font-size:3rem}.welcome-text{font-size:1.4rem}.title-text{font-size:3rem}.start-game-btn{padding:14px 32px;font-size:1.1rem}}@media (max-width: 480px){.welcome-screen{align-items:flex-start;padding-top:57px}.welcome-content{padding:30px 25px}.welcome-content p{font-size:1rem;margin-bottom:1.5rem;padding:0 10px}.kanji-icons{font-size:2.5rem}.welcome-text{font-size:1.2rem;letter-spacing:1px}.title-text{font-size:2.5rem}.start-game-btn{padding:14px 28px;font-size:1rem}}