@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/inter-400.woff2) format("woff2")}@font-face{font-family:Inter;font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/inter-500.woff2) format("woff2")}@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/inter-600.woff2) format("woff2")}@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/inter-700.woff2) format("woff2")}@font-face{font-family:Inter;font-style:normal;font-weight:800;font-display:swap;src:url(/fonts/inter-800.woff2) format("woff2")}:root{--primary: #6366f1;--primary-hover: #4f46e5;--primary-light: #eef2ff;--primary-glow: rgba(99, 102, 241, .15);--success: #10b981;--success-light: #ecfdf5;--warning: #f59e0b;--warning-light: #fffbeb;--danger: #ef4444;--danger-light: #fef2f2;--info: #3b82f6;--info-light: #eff6ff;--bg: #f1f5f9;--bg-subtle: #f8fafc;--surface: #ffffff;--surface-hover: #fafbfc;--text: #0f172a;--text-secondary: #64748b;--text-muted: #94a3b8;--border: #e2e8f0;--border-hover: #cbd5e1;--radius: 16px;--radius-sm: 10px;--radius-xs: 6px;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -4px rgba(0,0,0,.04);--shadow-xl: 0 20px 25px -5px rgba(0,0,0,.08), 0 8px 10px -6px rgba(0,0,0,.04);--max-width: 1200px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", "Fira Code", "JetBrains Mono", monospace;--transition: .2s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--primary);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--primary-hover)}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.site-header{background:#ffffffd1;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-bottom:1px solid rgba(226,232,240,.6);position:sticky;top:0;z-index:100}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:60px}.site-logo{font-size:1.25rem;font-weight:800;color:var(--text);text-decoration:none;letter-spacing:-.02em;display:flex;align-items:center;gap:8px}.site-logo:before{content:"";width:28px;height:28px;background:linear-gradient(135deg,var(--primary),#8b5cf6);border-radius:8px;display:inline-block}.site-logo span{background:linear-gradient(135deg,var(--primary),#8b5cf6);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.site-nav{display:flex;gap:8px}.site-nav a{color:var(--text-secondary);font-size:.875rem;font-weight:500;padding:6px 14px;border-radius:8px;transition:all var(--transition)}.site-nav a:hover{color:var(--primary);background:var(--primary-light);text-decoration:none}.hero{text-align:center;padding:72px 24px 48px}.hero h1{font-size:2.75rem;font-weight:800;margin-bottom:16px;letter-spacing:-.03em;line-height:1.15;background:linear-gradient(135deg,var(--primary) 0%,#8b5cf6 50%,#ec4899 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.hero p{font-size:1.125rem;color:var(--text-secondary);max-width:540px;margin:0 auto;line-height:1.7}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;padding:0 24px 64px;max-width:var(--max-width);margin:0 auto}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:all .3s cubic-bezier(.4,0,.2,1);text-decoration:none;color:inherit;display:block;position:relative;overflow:hidden}.tool-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),#8b5cf6);opacity:0;transition:opacity .3s}.tool-card:hover{border-color:transparent;box-shadow:var(--shadow-xl);transform:translateY(-4px);text-decoration:none}.tool-card:hover:before{opacity:1}.tool-card .icon{font-size:2rem;margin-bottom:16px;display:inline-block}.tool-card h3{font-size:1.05rem;font-weight:700;margin-bottom:8px;letter-spacing:-.01em}.tool-card p{font-size:.875rem;color:var(--text-secondary);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.tool-card .badge{display:inline-block;margin-top:16px;padding:4px 12px;background:var(--primary-light);color:var(--primary);font-size:.75rem;border-radius:20px;font-weight:600;letter-spacing:.01em}.category-section{max-width:var(--max-width);margin:0 auto;padding:0 24px 24px}.category-title{font-size:1.25rem;font-weight:700;margin-bottom:20px;letter-spacing:-.01em;display:flex;align-items:center;gap:8px}.tool-page{max-width:760px;margin:0 auto;padding:48px 24px 80px}.tool-page h1{font-size:2rem;font-weight:800;margin-bottom:8px;letter-spacing:-.02em;line-height:1.2}.tool-page .tool-desc{color:var(--text-secondary);margin-bottom:36px;font-size:1rem;line-height:1.7}.tool-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow-md)}.tool-box label{display:block;font-weight:600;margin-bottom:6px;font-size:.875rem;color:var(--text);letter-spacing:.01em}.tool-box input:not([type=range]):not([type=checkbox]):not([type=radio]):not([type=color]),.tool-box select,.tool-box textarea{width:100%;padding:12px 16px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:.95rem;font-family:var(--font);margin-bottom:20px;transition:all var(--transition);background:var(--surface);color:var(--text)}.tool-box input:not([type=range]):not([type=checkbox]):not([type=radio]):not([type=color]):hover,.tool-box select:hover,.tool-box textarea:hover{border-color:var(--border-hover)}.tool-box input:not([type=range]):not([type=checkbox]):not([type=radio]):not([type=color]):focus,.tool-box select:focus,.tool-box textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-glow)}.tool-box textarea{min-height:140px;resize:vertical;font-family:var(--font-mono);font-size:.875rem;line-height:1.6}.tool-box .input-row{display:flex;gap:16px}.tool-box .input-row>div{flex:1}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;border:none;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;font-family:var(--font);cursor:pointer;transition:all var(--transition);width:100%;letter-spacing:.01em;position:relative;overflow:hidden}.btn:hover{transform:translateY(-1px);box-shadow:0 4px 16px #6366f159}.btn:active{transform:translateY(0)}.btn-sm{padding:8px 18px;font-size:.85rem;width:auto}.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text);box-shadow:none}.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);box-shadow:none;transform:none}.result-box{margin-top:28px;padding:24px;background:linear-gradient(135deg,var(--primary-light),#f5f3ff);border:1px solid rgba(99,102,241,.15);border-radius:var(--radius-sm);display:none;animation:fadeInUp .3s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.result-box.show{display:block}.result-box h3{font-size:.8rem;color:var(--primary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.08em;font-weight:700}.result-box .result-value{font-size:1.75rem;font-weight:800;color:var(--text);letter-spacing:-.02em}.result-box .result-detail{font-size:.875rem;color:var(--text-secondary);margin-top:4px}.tool-content{margin-top:48px;padding-top:36px;border-top:1px solid var(--border)}.tool-content h2{font-size:1.35rem;margin-bottom:12px;font-weight:700;letter-spacing:-.01em;color:var(--text)}.tool-content p{margin-bottom:14px;color:var(--text-secondary);font-size:.95rem;line-height:1.75}.tool-content ul{margin:0 0 14px 24px;color:var(--text-secondary);font-size:.95rem}.tool-content li{margin-bottom:6px}.related-section{max-width:760px;margin:0 auto;padding:0 24px 64px}.related-section h2{font-size:1.25rem;margin-bottom:16px;font-weight:700}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:36px 24px;text-align:center;color:var(--text-muted);font-size:.85rem}.site-footer a{color:var(--text-secondary);margin:0 12px;font-weight:500}.site-footer a:hover{color:var(--primary)}@media(max-width:768px){.hero{padding:48px 20px 32px}.hero h1{font-size:2rem}.hero p{font-size:1rem}.tool-grid{grid-template-columns:1fr;padding:0 16px 48px}.tool-box{padding:24px}.tool-box .input-row{flex-direction:column;gap:0}.site-nav{gap:4px}.site-nav a{font-size:.8rem;padding:6px 10px}.tool-page{padding:32px 16px 64px}.tool-page h1{font-size:1.6rem}}.radio-group,.checkbox-group{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}.radio-group label,.checkbox-group label{display:flex;align-items:center;gap:8px;font-weight:500;cursor:pointer;padding:10px 18px;border:1.5px solid var(--border);border-radius:var(--radius-sm);transition:all var(--transition);font-size:.9rem;user-select:none}.radio-group label:hover,.checkbox-group label:hover{border-color:var(--border-hover);background:var(--surface-hover)}.radio-group input[type=radio],.checkbox-group input[type=checkbox]{width:auto;margin:0;accent-color:var(--primary)}.radio-group label:has(input:checked),.checkbox-group label:has(input:checked){border-color:var(--primary);background:var(--primary-light);color:var(--primary)}input[type=range]{-webkit-appearance:none;width:100%;height:6px;background:linear-gradient(90deg,var(--primary) 0%,var(--border) 0%);border-radius:3px;border:none;padding:0;margin:8px 0 20px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--surface);border:3px solid var(--primary);cursor:pointer;box-shadow:0 2px 6px #6366f140;transition:all var(--transition)}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:0 2px 10px #6366f166}.color-preview{width:100%;height:100px;border-radius:var(--radius-sm);border:1px solid var(--border);margin-bottom:20px;transition:background-color .3s}#qr-output{display:flex;justify-content:center;padding:24px}#qr-output canvas,#qr-output img{border-radius:var(--radius-sm)}.copy-btn{position:absolute;top:10px;right:10px;padding:6px 14px;font-size:.8rem;border-radius:var(--radius-xs)}.ad-slot{max-width:var(--max-width);margin:24px auto;padding:0 24px;text-align:center}.ad-slot ins{display:block;min-height:90px}.bmi-scale{margin-top:24px;border-radius:var(--radius-sm);overflow:hidden}.bmi-bar{display:flex;height:12px;border-radius:6px;overflow:hidden}.bmi-bar span{flex:1;transition:opacity .3s}.bmi-labels{display:flex;justify-content:space-between;margin-top:8px;font-size:.75rem;color:var(--text-muted)}.bmi-pointer{position:relative;height:20px}.bmi-pointer:after{content:"";position:absolute;top:0;width:2px;height:20px;background:var(--text);border-radius:1px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:16px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;text-align:center}.stat-card .stat-value{font-size:1.5rem;font-weight:800;color:var(--text);letter-spacing:-.02em}.stat-card .stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600;margin-top:2px}.strength-bar{display:flex;gap:4px;margin-top:8px}.strength-bar span{flex:1;height:4px;border-radius:2px;background:var(--border);transition:background .3s}.text-center{text-align:center}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mb-2{margin-bottom:8px}.mb-4{margin-bottom:16px}.gap-2{gap:8px}.flex{display:flex}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-between{justify-content:space-between}