:root{--bg-color: #0D1117;--surface-color: #21262D;--surface-color-hover: #30363D;--primary-color: #58A6FF;--primary-glow: rgba(88, 166, 255, .4);--secondary-color: #8B949E;--text-main: #E6EDF3;--text-muted: #8B949E;--gradient-1: linear-gradient(135deg, #58A6FF 0%, #a371f7 100%);--glass-bg: rgba(33, 38, 45, .6);--glass-border: rgba(255, 255, 255, .1);--glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, .3);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif;color-scheme:dark;color:var(--text-main);background-color:var(--bg-color);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100vh;overflow-x:hidden;position:relative}.japanese-text{font-family:Noto Sans JP,sans-serif}.heading-font{font-family:Outfit,sans-serif}.grid-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background-image:linear-gradient(to right,rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(to bottom,rgba(255,255,255,.02) 1px,transparent 1px);background-size:50px 50px;z-index:-1;pointer-events:none}.glow{position:fixed;width:600px;height:600px;border-radius:50%;filter:blur(100px);z-index:-2;opacity:.15;animation:float 10s infinite ease-in-out alternate}.glow-1{top:-100px;left:-100px;background:#58a6ff}.glow-2{bottom:-200px;right:-100px;background:#a371f7;animation-delay:-5s}#app{max-width:1280px;margin:0 auto;padding:0 2rem;display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;justify-content:space-between;align-items:center;padding:2rem 0;z-index:10}.logo{display:flex;align-items:center;gap:.75rem;font-family:Outfit,sans-serif;font-weight:800;font-size:1.25rem;letter-spacing:-.02em}.kanji-icon{font-family:Noto Sans JP,sans-serif;background:var(--surface-color);border:1px solid var(--glass-border);border-radius:8px;padding:.4rem;font-size:1rem;color:var(--primary-color)}.nav-links{display:flex;gap:2rem}.nav-links a{color:var(--text-muted);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .2s ease}.nav-links a:hover{color:var(--text-main)}.hero{flex:1;display:flex;align-items:center;justify-content:space-between;gap:4rem;padding:4rem 0}.hero-content{flex:1;max-width:600px}.badge{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem 1rem;background:#58a6ff1a;border:1px solid rgba(88,166,255,.2);border-radius:100px;color:var(--primary-color);font-size:.85rem;font-weight:600;margin-bottom:2rem}.pulse-dot{width:8px;height:8px;background:var(--primary-color);border-radius:50%;box-shadow:0 0 #58a6ffb3;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #58a6ffb3}70%{box-shadow:0 0 0 10px #58a6ff00}to{box-shadow:0 0 #58a6ff00}}h1{font-family:Outfit,sans-serif;font-size:clamp(3rem,5vw,4.5rem);font-weight:800;line-height:1.1;letter-spacing:-.03em;margin-bottom:1.5rem}.gradient-text{background:var(--gradient-1);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}.hero-content p{font-size:1.125rem;line-height:1.6;color:var(--text-muted);margin-bottom:3rem;max-width:500px}.cta-group{display:flex;flex-direction:column;gap:1.5rem}.primary-btn{background:var(--text-main);color:var(--bg-color);border:none;padding:1rem 2rem;border-radius:12px;font-size:1.1rem;font-weight:600;font-family:Inter,sans-serif;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.75rem;transition:transform .2s ease,box-shadow .2s ease;width:fit-content}.primary-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px #ffffff26}.primary-btn svg{transition:transform .3s ease}.primary-btn:hover svg{transform:translate(4px)}.store-badges{display:flex;gap:1rem}.shimmer-wrapper{position:relative;overflow:hidden;border-radius:8px;background:var(--surface-color);border:1px solid var(--glass-border)}.store-badge-placeholder{padding:.8rem 1.5rem;font-size:.9rem;font-weight:500;color:var(--text-muted)}.shimmer-wrapper:after{content:"";position:absolute;inset:0;transform:translate(-100%);background-image:linear-gradient(90deg,#fff0 0,#ffffff0d 20%,#ffffff1a 60%,#fff0);animation:shimmer 3s infinite}@keyframes shimmer{to{transform:translate(100%)}}.hero-visual{flex:1;position:relative;height:500px;display:flex;align-items:center;justify-content:center}.glass-card{background:var(--glass-bg);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);border-radius:20px;box-shadow:var(--glass-shadow);padding:2rem}.main-card{width:100%;max-width:450px;position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.2);border-left:1px solid rgba(255,255,255,.1)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid rgba(255,255,255,.05)}.glass-badge{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);padding:.3rem .8rem;border-radius:100px;font-size:.8rem;color:var(--text-muted)}.card-header .japanese-text{font-size:1.2rem;font-weight:700}.card-body{display:flex;align-items:center;justify-content:center;gap:1rem}.tree-node{display:flex;flex-direction:column;align-items:center;gap:.5rem}.node-kanji{width:64px;height:64px;background:var(--surface-color);border:2px solid var(--primary-color);border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:2rem;font-family:Noto Sans JP,sans-serif;font-weight:900;box-shadow:0 0 20px var(--primary-glow)}.node-label{font-size:.8rem;color:var(--text-muted);font-weight:500}.tree-node.locked .node-kanji{border-color:var(--glass-border);color:var(--text-muted);box-shadow:none;background:#21262d4d}.secondary-card{position:absolute;padding:1rem 1.5rem;border-radius:16px;display:flex;align-items:center;gap:1rem;max-width:280px;z-index:3}.secondary-card.floating-1{top:10%;right:-5%;animation:float 6s infinite ease-in-out}.secondary-card.floating-2{bottom:15%;left:-10%;animation:float 8s infinite ease-in-out reverse}.card-icon{font-size:1.5rem;background:#ffffff0d;padding:.5rem;border-radius:12px}.card-text{display:flex;flex-direction:column;gap:.2rem}.card-text strong{font-size:.95rem;color:var(--text-main)}.card-text span{font-size:.8rem;color:var(--text-muted);line-height:1.4}footer{text-align:center;padding:2rem 0;color:var(--text-muted);font-size:.9rem;border-top:1px solid var(--glass-border);margin-top:2rem}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}.fade-in-up{opacity:0;transform:translateY(20px);animation:fadeInUp .8s cubic-bezier(.16,1,.3,1) forwards}.delay-1{animation-delay:.1s}.delay-2{animation-delay:.2s}.delay-3{animation-delay:.3s}.delay-4{animation-delay:.4s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:968px){.hero{flex-direction:column;text-align:center;gap:3rem}.hero-content p{margin:0 auto 2rem}.cta-group{align-items:center}.secondary-card.floating-1{top:0;right:0}.secondary-card.floating-2{bottom:0;left:0}}@media(max-width:600px){h1{font-size:2.5rem}.hero-visual{display:none}}