@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";
:root{--accent:#f97316;--accent-dark:#ea580c;--accent-light:#fff7ed;--accent-ring:#f9731640;--bg:#f8f8f8;--surface:#fff;--surface-2:#f4f4f5;--border:#e4e4e7;--border-strong:#d1d5db;--text:#111827;--text-2:#6b7280;--text-3:#9ca3af;--success:#16a34a;--error:#dc2626;--warning:#d97706;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-full:9999px;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 12px #00000012, 0 2px 4px #0000000d;--shadow-lg:0 12px 32px #0000001a, 0 4px 8px #0000000f;--shadow-accent:0 4px 14px #f973164d;--nav-h:60px;--bottom-bar-h:64px;--safe-bottom:env(safe-area-inset-bottom,0px);--safe-top:env(safe-area-inset-top,0px)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility;scroll-behavior:smooth;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px}body{background:var(--bg);color:var(--text);min-height:100dvh;padding-top:var(--safe-top)}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none;font-family:inherit}input,select,textarea{font-family:inherit}img{max-width:100%;display:block}h1{font-size:clamp(1.5rem,4vw,2.25rem);font-weight:700;line-height:1.2}h2{font-size:clamp(1.2rem,3vw,1.6rem);font-weight:700;line-height:1.3}h3{font-size:1.1rem;font-weight:600;line-height:1.4}p{color:var(--text-2);line-height:1.6}.page-wrapper{flex-direction:column;min-height:100dvh;display:flex}.main-content{padding:24px 16px calc(var(--bottom-bar-h) + var(--safe-bottom) + 24px);flex:1;width:100%;max-width:860px;margin:0 auto}@media (min-width:768px){.main-content{padding:32px 24px 48px}}@media (min-width:1024px){.main-content{max-width:960px;padding:40px 32px 60px}}.top-nav{z-index:100;height:var(--nav-h);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#ffffffeb;align-items:center;padding:0 16px;display:flex;position:sticky;top:0}.top-nav-inner{justify-content:space-between;align-items:center;gap:12px;width:100%;max-width:960px;margin:0 auto;display:flex}.nav-logo{color:var(--text);align-items:center;gap:8px;font-size:1.1rem;font-weight:700;display:flex}.nav-logo-icon{background:var(--accent);border-radius:var(--r-sm);color:#fff;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.nav-links{align-items:center;gap:4px;display:flex}.nav-link{border-radius:var(--r-full);color:var(--text-2);padding:6px 14px;font-size:.875rem;font-weight:500;transition:all .15s}.nav-link:hover{background:var(--surface-2);color:var(--text)}.nav-link.active{background:var(--accent-light);color:var(--accent-dark)}@media (max-width:767px){.nav-links{display:none}}.bottom-bar{z-index:100;height:calc(var(--bottom-bar-h) + var(--safe-bottom));padding-bottom:var(--safe-bottom);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border);background:#fffffff5;align-items:flex-start;padding-top:6px;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-bar-inner{justify-content:space-around;width:100%;display:flex}.bottom-tab{border-radius:var(--r-md);max-width:80px;color:var(--text-3);-webkit-tap-highlight-color:transparent;flex-direction:column;flex:1;align-items:center;gap:3px;padding:6px 12px;font-size:.68rem;font-weight:500;transition:all .15s;display:flex}.bottom-tab svg{stroke-width:1.75px;width:22px;height:22px}.bottom-tab.active{color:var(--accent)}.bottom-tab.active svg{stroke:var(--accent)}@media (min-width:768px){.bottom-bar{display:none}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}.card-pad{padding:20px}@media (min-width:768px){.card-pad{padding:28px}}.drop-zone{border:2px dashed var(--border-strong);border-radius:var(--r-lg);background:var(--surface);text-align:center;cursor:pointer;-webkit-tap-highlight-color:transparent;padding:40px 24px;transition:all .2s;position:relative}.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-light)}.drop-zone input[type=file]{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.drop-icon{background:var(--accent-light);border-radius:var(--r-lg);width:52px;height:52px;color:var(--accent);justify-content:center;align-items:center;margin:0 auto 16px;display:flex}.drop-title{color:var(--text);margin-bottom:6px;font-size:1rem;font-weight:600}.drop-sub{color:var(--text-3);font-size:.83rem}.btn{border-radius:var(--r-md);white-space:nowrap;-webkit-tap-highlight-color:transparent;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:11px 22px;font-size:.9rem;font-weight:600;transition:all .15s;display:inline-flex}.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-accent)}.btn-primary:hover{background:var(--accent-dark);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-ghost{color:var(--text-2);background:0 0}.btn-ghost:hover{background:var(--surface-2);color:var(--text)}.btn-full{width:100%}.btn-lg{border-radius:var(--r-lg);min-height:52px;padding:14px 28px;font-size:1rem}.btn-sm{min-height:36px;padding:7px 14px;font-size:.8rem}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.range-wrap{flex-direction:column;gap:8px;display:flex}.range-label{color:var(--text);justify-content:space-between;font-size:.85rem;font-weight:500;display:flex}.range-label span{color:var(--accent);font-weight:700}input[type=range]{appearance:none;border-radius:var(--r-full);background:var(--border-strong);cursor:pointer;outline:none;width:100%;height:6px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border:2px solid #fff;border-radius:50%;width:22px;height:22px;transition:transform .1s;box-shadow:0 2px 6px #f9731666}input[type=range]::-webkit-slider-thumb:active{transform:scale(1.15)}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--text);font-size:.85rem;font-weight:600}.input{border:1.5px solid var(--border);border-radius:var(--r-md);background:var(--surface);height:44px;color:var(--text);outline:none;width:100%;padding:0 14px;font-size:.9rem;transition:border-color .15s}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}.select{border:1.5px solid var(--border);border-radius:var(--r-md);background:var(--surface);height:44px;color:var(--text);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;outline:none;width:100%;padding:0 36px 0 14px;font-size:.9rem;transition:border-color .15s}.select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}.tool-header{margin-bottom:24px}.tool-title{color:var(--text);margin-bottom:8px;font-size:clamp(1.35rem,3.5vw,2rem);font-weight:700}.tool-desc{color:var(--text-2);font-size:.95rem;line-height:1.6}.tool-badge{background:var(--accent-light);color:var(--accent-dark);border-radius:var(--r-full);align-items:center;gap:5px;margin-bottom:12px;padding:4px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.tool-stack{flex-direction:column;gap:16px;display:flex}.tool-settings{flex-direction:column;gap:14px;display:flex}.settings-title{text-transform:uppercase;letter-spacing:.07em;color:var(--text-3);margin-bottom:4px;font-size:.78rem;font-weight:700}@media (min-width:768px){.tool-2col{grid-template-columns:1fr 300px;align-items:start;gap:20px;display:grid}}.preview-wrap{border-radius:var(--r-lg);background:var(--surface-2);justify-content:center;align-items:center;min-height:200px;display:flex;position:relative;overflow:hidden}.preview-img{object-fit:contain;max-width:100%;max-height:400px}.progress-bar-wrap{background:var(--border);border-radius:var(--r-full);width:100%;height:6px;overflow:hidden}.progress-bar-fill{background:var(--accent);border-radius:var(--r-full);height:100%;transition:width .3s}.stats-row{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.stat-box{background:var(--surface-2);border-radius:var(--r-md);text-align:center;padding:12px}.stat-value{color:var(--text);margin-bottom:2px;font-size:1.05rem;font-weight:700}.stat-label{color:var(--text-3);text-transform:uppercase;letter-spacing:.04em;font-size:.7rem;font-weight:500}.stat-value.success{color:var(--success)}.stat-value.accent{color:var(--accent)}.result-actions{flex-wrap:wrap;gap:10px;display:flex}@media (max-width:767px){.result-actions-sticky{bottom:calc(var(--bottom-bar-h) + var(--safe-bottom) + 8px);z-index:90;gap:10px;display:flex;position:fixed;left:16px;right:16px}}.pill-group{flex-wrap:wrap;gap:8px;display:flex}.pill{border-radius:var(--r-full);border:1.5px solid var(--border);color:var(--text-2);background:var(--surface);cursor:pointer;-webkit-tap-highlight-color:transparent;min-height:36px;padding:7px 16px;font-size:.83rem;font-weight:600;transition:all .15s}.pill:hover{border-color:var(--accent);color:var(--accent)}.pill.selected{background:var(--accent);border-color:var(--accent);color:#fff}.preset-grid{grid-template-columns:repeat(2,1fr);gap:8px;display:grid}@media (min-width:480px){.preset-grid{grid-template-columns:repeat(3,1fr)}}.preset-btn{border-radius:var(--r-md);border:1.5px solid var(--border);background:var(--surface);text-align:left;cursor:pointer;-webkit-tap-highlight-color:transparent;padding:10px 12px;transition:all .15s}.preset-btn:hover,.preset-btn.active{border-color:var(--accent);background:var(--accent-light)}.preset-name{color:var(--text);margin-bottom:2px;font-size:.8rem;font-weight:700}.preset-size{color:var(--text-3);font-size:.72rem}.toast{bottom:calc(var(--bottom-bar-h) + var(--safe-bottom) + 16px);background:var(--text);color:#fff;border-radius:var(--r-full);z-index:200;opacity:0;white-space:nowrap;pointer-events:none;padding:10px 20px;font-size:.875rem;font-weight:500;transition:all .25s;position:fixed;left:50%;transform:translate(-50%)translateY(20px)}.toast.show{opacity:1;transform:translate(-50%)translateY(0)}@media (min-width:768px){.toast{bottom:32px}}.seo-section{border-top:1px solid var(--border);margin-top:48px;padding-top:40px}.seo-section h2{color:var(--text);margin-bottom:12px;font-size:1.25rem;font-weight:700}.seo-section h3{color:var(--text);margin:20px 0 8px;font-size:1rem;font-weight:600}.seo-section p{color:var(--text-2);margin-bottom:10px;font-size:.9rem;line-height:1.7}.seo-section ul{flex-direction:column;gap:6px;padding-left:20px;display:flex}.seo-section ul li{color:var(--text-2);font-size:.9rem;line-height:1.6}.faq-list{flex-direction:column;gap:16px;margin-top:8px;display:flex}.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);padding:16px 18px}.faq-item h3{color:var(--text);margin-bottom:6px;font-size:.9rem;font-weight:600}.faq-item p{color:var(--text-2);margin:0;font-size:.875rem}.hero{text-align:center;padding:32px 0 40px}.hero-title{margin-bottom:12px}.hero-sub{color:var(--text-2);max-width:560px;margin:0 auto 28px;font-size:1rem}.private-badge{color:#16a34a;border-radius:var(--r-full);background:#f0fdf4;border:1px solid #bbf7d0;align-items:center;gap:6px;margin-bottom:20px;padding:6px 14px;font-size:.8rem;font-weight:600;display:inline-flex}.category-section{margin-bottom:36px}.category-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-3);align-items:center;gap:8px;margin-bottom:14px;font-size:.78rem;font-weight:700;display:flex}.category-label:after{content:"";background:var(--border);flex:1;height:1px}.tools-grid{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}@media (min-width:480px){.tools-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width:768px){.tools-grid{grid-template-columns:repeat(4,1fr);gap:12px}}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);-webkit-tap-highlight-color:transparent;flex-direction:column;gap:10px;padding:16px 14px;text-decoration:none;transition:all .18s;display:flex}.tool-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateY(-2px)}.tool-card:active{transform:translateY(0)}.tool-card-icon{border-radius:var(--r-md);background:var(--accent-light);width:40px;height:40px;color:var(--accent);justify-content:center;align-items:center;display:flex}.tool-card-name{color:var(--text);font-size:.83rem;font-weight:600;line-height:1.3}.tool-card-desc{color:var(--text-3);font-size:.75rem;line-height:1.4}.divider{background:var(--border);height:1px;margin:20px 0}.flex-row{align-items:center;gap:10px;display:flex}.flex-between{justify-content:space-between;align-items:center;gap:10px;display:flex}.grid-2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.text-center{text-align:center}.text-sm{font-size:.875rem}.text-xs{font-size:.78rem}.text-muted{color:var(--text-2)}.fw-600{font-weight:600}.fw-700{font-weight:700}.mt-4{margin-top:4px}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}@keyframes spin{to{transform:rotate(360deg)}}.spinner{border:2.5px solid #ffffff4d;border-top-color:#fff;border-radius:50%;flex-shrink:0;width:20px;height:20px;animation:.7s linear infinite spin}.spinner-accent{border:2.5px solid var(--border);border-top-color:var(--accent)}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.fade-in{animation:.3s forwards fadeIn}.related-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-top:12px;display:grid}@media (min-width:480px){.related-grid{grid-template-columns:repeat(3,1fr)}}.related-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);color:var(--text);align-items:center;gap:8px;padding:12px 14px;font-size:.82rem;font-weight:600;transition:all .15s;display:flex}.related-card:hover{border-color:var(--accent);color:var(--accent)}.related-card svg{width:16px;height:16px;color:var(--text-3);flex-shrink:0}.breadcrumb{background:var(--surface);border-bottom:1px solid var(--border)}.breadcrumb-inner{align-items:center;gap:4px;max-width:860px;margin:0 auto;padding:8px 16px;display:flex}.breadcrumb-link{color:var(--text-2);font-size:.78rem;text-decoration:none;transition:color .15s}.breadcrumb-link:hover{color:var(--accent)}.breadcrumb-sep{color:var(--text-3,#bbb);flex-shrink:0}.breadcrumb-current{color:var(--text-1);white-space:nowrap;text-overflow:ellipsis;font-size:.78rem;font-weight:500;overflow:hidden}.footer{background:var(--surface);border-top:1px solid var(--border);padding:24px 16px;padding-bottom:calc(var(--bottom-bar-h) + var(--safe-bottom) + 16px);text-align:center}@media (min-width:768px){.footer{padding:28px 24px}}.footer-inner{flex-direction:column;align-items:center;gap:12px;max-width:960px;margin:0 auto;display:flex}.footer-links{flex-wrap:wrap;justify-content:center;gap:6px 16px;display:flex}.footer-link{color:var(--text-3);font-size:.8rem;transition:color .15s}.footer-link:hover{color:var(--accent)}.footer-copy{color:var(--text-3);font-size:.78rem}