@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;700;900&display=swap";:root{--bg-color:#fff;--bg-secondary:#f3f4f6;--bg-card:#fff;--text-primary:#111827;--text-secondary:#6b7280;--primary-color:#10b981;--primary-hover:#059669;--primary-light:#d1fae5;--accent-color:#3b82f6;--accent-light:#dbeafe;--border-color:#e5e7eb;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -2px #0000000d;--shadow-float:0 20px 25px -5px #0000001a, 0 10px 10px -5px #0000000a;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-full:9999px;--font-main:"Inter", "Noto Sans JP", sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background-color:var(--bg-secondary);color:var(--text-primary);font-family:var(--font-main);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}.app-container{background-color:var(--bg-secondary);max-width:480px;min-height:100vh;margin:0 auto;padding-bottom:80px;position:relative;overflow-x:hidden}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700}h1{letter-spacing:-.02em;font-size:1.5rem}h2{letter-spacing:-.01em;font-size:1.25rem}p{color:var(--text-secondary);font-size:.95rem}.card{background-color:var(--bg-card);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);margin-bottom:16px;padding:20px;transition:transform .2s,box-shadow .2s}.card:active{transform:scale(.98)}.btn{border-radius:var(--radius-full);cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;width:100%;padding:12px 24px;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary-color);color:#fff;box-shadow:0 4px 12px #10b98140}.btn-primary:hover{background-color:var(--primary-hover)}.btn-primary:active{transform:translateY(2px);box-shadow:0 2px 4px #10b98133}.btn-secondary{color:var(--text-primary);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);background-color:#fff}.btn-secondary:active{background-color:var(--bg-secondary)}.header{z-index:50;-webkit-backdrop-filter:blur(12px);background:#ffffffd9;border-bottom:1px solid #e5e7eb80;justify-content:space-between;align-items:center;padding:16px 20px;display:flex;position:sticky;top:0}.header-title{background:linear-gradient(135deg, var(--primary-color), var(--accent-color));-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:1.2rem;font-weight:800}.bottom-nav{-webkit-backdrop-filter:blur(12px);z-index:50;background:#fffffff2;border-top:1px solid #e5e7ebcc;justify-content:space-around;max-width:480px;margin:0 auto;padding:12px 0;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 20px #00000008}.nav-item{color:var(--text-secondary);cursor:pointer;flex-direction:column;align-items:center;gap:4px;font-size:.7rem;font-weight:600;text-decoration:none;transition:color .2s;display:flex}.nav-item.active{color:var(--primary-color)}.nav-icon-wrapper{border-radius:var(--radius-full);padding:8px;transition:background-color .2s}.nav-item.active .nav-icon-wrapper{background-color:var(--primary-light)}.flex-center{justify-content:center;align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.gap-2{gap:8px}.gap-4{gap:16px}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.p-4{padding:16px}.text-center{text-align:center}