:root{--bg-color: #F5F5F7;--surface-color: #FFFFFF;--surface-hover: #F1F5F9;--kanji-color: #E0358B;--kanji-bg: #FFF0F6;--word-color: #8B5CF6;--word-bg: #F5F0FF;--sentence-color: #0EA5E9;--sentence-bg: #F0F9FF;--learned-color: #10B981;--learned-bg: #ECFDF5;--practice-color: #F59E0B;--practice-bg: #FEF3C7;--text-primary: #1A1A2E;--text-secondary: #64748B;--text-muted: #94A3B8;--border: #E2E8F0;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .1);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color-scheme:light;color:var(--text-primary);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}#app{max-width:1100px;margin:0 auto;padding:0 1.5rem;display:flex;flex-direction:column;min-height:100vh}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 0;z-index:10}.logo{display:flex;align-items:center;gap:.6rem;font-family:Outfit,sans-serif;font-weight:800;font-size:1.2rem;letter-spacing:-.02em;white-space:nowrap;color:var(--text-primary);text-decoration:none}.logo-img{width:28px;height:28px}.nav-links{display:flex;gap:1.5rem}.nav-links a{color:var(--text-secondary);text-decoration:none;font-size:.9rem;font-weight:500;transition:color .2s ease}.nav-links a:hover{color:var(--text-primary)}.hero{flex:1;display:flex;align-items:center;justify-content:space-between;gap:4rem;padding:3rem 0 4rem}.hero-content{flex:1;max-width:520px}.badge{display:inline-flex;align-items:center;gap:.5rem;padding:.35rem .9rem;background:var(--kanji-bg);border:1px solid rgba(224,53,139,.15);border-radius:100px;color:var(--kanji-color);font-size:.8rem;font-weight:700;margin-bottom:1.5rem}.pulse-dot{width:7px;height:7px;background:var(--kanji-color);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%{box-shadow:0 0 #e0358b80}70%{box-shadow:0 0 0 8px #e0358b00}to{box-shadow:0 0 #e0358b00}}h1{font-family:Outfit,sans-serif;font-size:clamp(2.5rem,4.5vw,3.5rem);font-weight:800;line-height:1.1;letter-spacing:-.03em;margin-bottom:1.25rem;color:var(--text-primary)}.gradient-text{color:var(--kanji-color)}.hero-content p{font-size:1.05rem;line-height:1.65;color:var(--text-secondary);margin-bottom:2rem;max-width:460px}.cta-group{display:flex;flex-direction:column;gap:1rem}.store-badges{display:flex;gap:.75rem}.store-badge-placeholder{padding:.7rem 1.2rem;font-size:.85rem;font-weight:600;color:var(--text-muted);background:var(--surface-color);border:1px solid var(--border);border-radius:12px;transition:border-color .2s}.store-badge-placeholder:hover{border-color:var(--text-muted)}.hero-visual{flex:1;position:relative;height:460px;display:flex;align-items:center;justify-content:center}.feature-card{background:var(--surface-color);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow-md);padding:1.25rem 1.5rem;display:flex;align-items:center;gap:1rem;max-width:280px;transition:transform .3s ease,box-shadow .3s ease}.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.main-card{position:relative;z-index:2;animation:float 7s infinite ease-in-out}.secondary-card{position:absolute;z-index:3}.secondary-card.floating-1{top:8%;right:-5%;animation:float 6s infinite ease-in-out}.secondary-card.floating-2{bottom:12%;left:-10%;animation:float 8s infinite ease-in-out reverse}.card-icon{font-size:1.5rem;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:12px;flex-shrink:0}.card-icon.kanji-icon{background:var(--kanji-bg)}.card-icon.word-icon{background:var(--word-bg)}.card-icon.sentence-icon{background:var(--sentence-bg)}.card-icon.practice-icon{background:var(--practice-bg)}.card-icon.learned-icon{background:var(--learned-bg)}.card-text{display:flex;flex-direction:column;gap:.15rem}.card-text strong{font-size:.9rem;color:var(--text-primary)}.card-text span{font-size:.78rem;color:var(--text-secondary);line-height:1.4}.features-section{padding:3rem 0 4rem}.features-section h2{font-family:Outfit,sans-serif;font-size:2rem;font-weight:800;text-align:center;margin-bottom:.5rem;color:var(--text-primary)}.features-section .subtitle{text-align:center;color:var(--text-secondary);margin-bottom:2.5rem;font-size:1rem}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.feature-tile{background:var(--surface-color);border:1px solid var(--border);border-radius:20px;padding:1.75rem;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}.feature-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}.feature-tile .tile-icon{font-size:1.75rem;width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:14px;margin-bottom:1rem}.feature-tile h3{font-family:Outfit,sans-serif;font-size:1.1rem;font-weight:700;margin-bottom:.5rem;color:var(--text-primary)}.feature-tile p{font-size:.85rem;line-height:1.5;color:var(--text-secondary)}.type-badge{display:inline-block;padding:.2rem .6rem;border-radius:6px;font-size:.65rem;font-weight:800;letter-spacing:.5px;margin-bottom:.75rem}.type-badge.kanji{background:var(--kanji-bg);color:var(--kanji-color)}.type-badge.word{background:var(--word-bg);color:var(--word-color)}.type-badge.sentence{background:var(--sentence-bg);color:var(--sentence-color)}footer{text-align:center;padding:1.5rem 0;color:var(--text-muted);font-size:.85rem;border-top:1px solid var(--border);margin-top:2rem}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-12px)}to{transform:translateY(0)}}.fade-in-up{opacity:0;transform:translateY(16px);animation:fadeInUp .7s 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}.delay-5{animation-delay:.5s}@keyframes fadeInUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.legal-content{max-width:720px;margin:0 auto;padding:3rem 0;line-height:1.8}.legal-content h1{font-family:Outfit,sans-serif;font-size:2.5rem;margin-bottom:.75rem;color:var(--text-primary)}.legal-content .last-updated{color:var(--text-muted);margin-bottom:2.5rem}.legal-content h2{font-family:Outfit,sans-serif;font-size:1.4rem;margin-top:2rem;margin-bottom:.75rem;color:var(--kanji-color)}.legal-content p{margin-bottom:1.25rem;color:var(--text-secondary)}.legal-content ul{margin-left:1.5rem;margin-bottom:1.25rem}.legal-content li{margin-bottom:.4rem;color:var(--text-secondary)}.legal-content header{text-align:center;margin-bottom:3rem}.legal-content a{color:var(--kanji-color);text-decoration:none}.legal-content a:hover{text-decoration:underline}.contact-card{background:var(--surface-color);border:1px solid var(--border);padding:2.5rem;border-radius:20px;text-align:center;margin-top:1.5rem;display:flex;flex-direction:column;align-items:center;gap:1rem;box-shadow:var(--shadow-sm)}.contact-card h2{color:var(--text-primary)}.contact-icon{font-size:2.5rem;background:var(--kanji-bg);padding:1rem;border-radius:16px}.legal-content a.support-btn,.support-btn{background:var(--kanji-color);color:#fff;text-decoration:none;padding:.85rem 1.75rem;border-radius:14px;font-weight:700;font-size:.95rem;transition:transform .2s ease,box-shadow .2s ease}.legal-content a.support-btn:hover,.support-btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 4px 16px #e0358b40;text-decoration:none}.faq-item{margin-bottom:1.5rem}.faq-item h3{color:var(--text-primary);margin-bottom:.4rem;font-size:1rem}@media(max-width:968px){.hero{flex-direction:column;text-align:center;gap:2.5rem}.hero-content p{margin:0 auto 2rem}.cta-group{align-items:center}.features-grid{grid-template-columns:1fr;max-width:400px;margin:0 auto}.secondary-card.floating-1{top:0;right:0}.secondary-card.floating-2{bottom:0;left:0}}@media(max-width:600px){h1{font-size:2.2rem}.hero-visual{display:none}.store-badges{flex-direction:column;align-items:center}}