:root{
  --bg:#f5f7fb;--surface:#fff;--surface-2:#f8fafc;--surface-3:#eef4fb;--text:#0f172a;--muted:#64748b;
  --border:#dbe3ee;--border-soft:#e9eef5;--accent:#2563eb;--accent-soft:#eff6ff;--accent-hover:#1d4ed8;
  --success:#15803d;--success-bg:#ecfdf3;--danger:#b91c1c;--danger-bg:#fef2f2;--warning:#b45309;--warning-bg:#fff7ed;
  --shadow:0 14px 34px rgba(15,23,42,.07)
}
:root[data-theme="dark"]{
  --bg:#0b1120;--surface:#111827;--surface-2:#0f172a;--surface-3:#182234;--text:#f8fafc;--muted:#94a3b8;
  --border:#2a374a;--border-soft:#1f2a3a;--accent:#60a5fa;--accent-soft:#0f2746;--accent-hover:#93c5fd;
  --success:#4ade80;--success-bg:#10261a;--danger:#f87171;--danger-bg:#2a1518;--warning:#fbbf24;--warning-bg:#2b2110;
  --shadow:0 14px 34px rgba(0,0,0,.25)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}button,input,textarea,select{font:inherit}button{color:inherit}a{color:inherit}
.topbar,.hero,.workspace,.faq,footer{width:min(1180px,calc(100% - 32px));margin:0 auto}.topbar{display:flex;align-items:center;gap:18px;padding:18px 0;border-bottom:1px solid var(--border-soft)}.brand{font-size:1.45rem;font-weight:850;text-decoration:none;letter-spacing:-.035em}.brand span{color:var(--accent)}nav{display:flex;gap:20px;margin-left:auto}nav a,.footer-links a{font-size:.92rem;color:var(--muted);text-decoration:none}nav a:hover,.footer-links a:hover{color:var(--text)}.header-actions{display:flex;align-items:center;gap:8px}.share-icons{display:flex;gap:5px}.icon-btn,.language-select{height:36px;border:1px solid var(--border);border-radius:9px;background:var(--surface);color:var(--text)}.icon-btn{min-width:36px;padding:0 9px;cursor:pointer;font-size:.78rem;font-weight:750}.icon-btn:hover{background:var(--surface-2)}.language-select{padding:0 8px}.hero{padding:42px 0 28px}.badge{display:inline-flex;padding:7px 10px;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--muted);font-size:.78rem;font-weight:700}.hero h1{max-width:820px;margin:16px 0 12px;font-size:clamp(2.25rem,5vw,4.2rem);line-height:.98;letter-spacing:-.055em}.hero p{max-width:770px;margin:0;color:var(--muted);line-height:1.7;font-size:1.03rem}
.workspace{display:grid;grid-template-columns:220px minmax(0,1fr);gap:14px;align-items:start;padding:8px 0 30px}.tool-nav{position:sticky;top:12px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:8px;box-shadow:var(--shadow)}.tool-tab{width:100%;display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--muted);padding:10px;border-radius:10px;cursor:pointer;text-align:left;font-weight:700;font-size:.9rem}.tool-tab:hover{background:var(--surface-2);color:var(--text)}.tool-tab.active{background:var(--accent-soft);color:var(--accent)}.tool-icon{display:grid;place-items:center;width:34px;height:30px;border:1px solid var(--border);border-radius:8px;background:var(--surface);font-size:.72rem;font-weight:850;letter-spacing:-.02em;color:inherit;flex:0 0 auto}.tool-stage{min-width:0}.tool-panel{display:none;background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.tool-panel.active{display:block}.panel-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:18px}.panel-head h2{font-size:1.25rem;margin:0 0 5px;letter-spacing:-.025em}.panel-head p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.55}.privacy-pill,.warning-pill{white-space:nowrap;border:1px solid var(--border);border-radius:999px;padding:6px 9px;font-size:.72rem;font-weight:750;color:var(--muted);background:var(--surface-2)}.warning-pill{color:var(--warning);background:var(--warning-bg);border-color:color-mix(in srgb,var(--warning) 25%,var(--border))}
.editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.editor{display:flex;flex-direction:column;gap:7px;min-width:0}.editor.single{margin-top:12px}.editor>span,.compact-form label>span,.mini-card label>span,.output-line>span{font-size:.78rem;font-weight:750;color:var(--muted)}textarea,input,select{border:1px solid var(--border);background:var(--surface-2);color:var(--text);outline:none;border-radius:11px}textarea{width:100%;min-height:300px;resize:vertical;padding:13px 14px;line-height:1.5;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:.86rem;tab-size:2}.editor.single textarea{min-height:180px}textarea:focus,input:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent)}.action-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.action-row button,.mode-btn,.compact-form button{border:1px solid var(--border);background:var(--surface);border-radius:9px;padding:9px 12px;cursor:pointer;font-weight:750;font-size:.84rem}.action-row button:hover,.mode-btn:hover,.compact-form button:hover{background:var(--surface-2)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}button.ghost{border-color:transparent;background:transparent}.danger-text{color:var(--danger)}.mode-row{display:inline-flex;gap:5px;padding:5px;border:1px solid var(--border);background:var(--surface-2);border-radius:11px;margin-bottom:12px}.mode-btn{border:0;background:transparent;color:var(--muted);padding:8px 12px}.mode-btn.active{background:var(--surface);color:var(--text);box-shadow:0 1px 2px rgba(15,23,42,.08)}.status{min-height:22px;margin-top:9px;font-size:.82rem;color:var(--muted)}.status.success{color:var(--success)}.status.error{color:var(--danger)}
.compact-form{display:flex;gap:12px;align-items:flex-end;margin-bottom:12px}.compact-form label{display:flex;flex-direction:column;gap:7px;min-width:180px}.compact-form input,.compact-form select,.mini-card input,.output-line input,.password-options input[type="number"]{padding:10px 12px;min-height:42px}.align-end{height:42px}.timestamp-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.mini-card{border:1px solid var(--border);background:var(--surface-2);border-radius:13px;padding:14px}.mini-card label{display:flex;flex-direction:column;gap:7px}.mini-card .action-row{margin-top:10px}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}.result-grid>div{border:1px solid var(--border-soft);background:var(--surface-2);border-radius:11px;padding:11px 12px;min-width:0}.result-grid span{display:block;color:var(--muted);font-size:.72rem;margin-bottom:5px}.result-grid strong{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:.82rem;overflow-wrap:anywhere}.output-line{display:flex;flex-direction:column;gap:7px;margin-top:12px}.output-line input{width:100%;font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}.password-options{display:grid;grid-template-columns:160px repeat(2,minmax(0,1fr));gap:10px;align-items:center;border:1px solid var(--border);background:var(--surface-2);border-radius:13px;padding:13px}.password-options>label:first-child{display:flex;flex-direction:column;gap:7px}.check{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.83rem;font-weight:650}.check input{width:17px;height:17px;accent-color:var(--accent)}.password-output input{font-size:1rem;padding:13px}
.faq{max-width:900px;padding:24px 0 28px}.faq h2{font-size:1.55rem;letter-spacing:-.03em}.faq details{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:15px 17px;margin-bottom:9px}.faq summary{cursor:pointer;font-weight:700}.faq p{color:var(--muted);line-height:1.65;margin-bottom:0}footer{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:24px 0 36px;color:var(--muted)}footer strong{display:block;color:var(--text);margin-bottom:4px}.footer-links{display:flex;flex-wrap:wrap;gap:14px}.toast{position:fixed;right:18px;bottom:18px;padding:10px 13px;border-radius:10px;background:var(--text);color:var(--bg);font-size:.86rem;z-index:50;box-shadow:var(--shadow)}
.seo-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow);max-width:760px}.seo-card h2{margin:0 0 8px}.seo-card p{color:var(--muted);line-height:1.65}.open-tool{display:inline-flex;text-decoration:none;background:var(--accent);color:#fff;padding:10px 14px;border-radius:10px;font-weight:750;font-size:.88rem;margin-top:4px}
@media(max-width:850px){nav{display:none}.workspace{grid-template-columns:1fr}.tool-nav{position:static;display:flex;overflow:auto;padding:7px}.tool-tab{width:auto;white-space:nowrap;flex:0 0 auto}.tool-icon{width:30px}.editor-grid,.timestamp-grid{grid-template-columns:1fr}.panel-head{flex-direction:column;gap:10px}.result-grid{grid-template-columns:1fr}.password-options{grid-template-columns:1fr 1fr}footer{flex-direction:column;align-items:flex-start}}
@media(max-width:540px){.topbar,.hero,.workspace,.faq,footer{width:calc(100% - 20px)}.topbar{gap:10px}.share-icons{display:none}.hero{padding-top:30px}.hero h1{font-size:2.35rem}.tool-panel{padding:14px}.tool-tab{padding:8px}.tool-tab span:last-child{display:none}.editor textarea{min-height:240px}.compact-form{align-items:stretch;flex-direction:column}.compact-form label{min-width:0}.password-options{grid-template-columns:1fr}.footer-links{gap:10px}.hide-small{display:none}}
button:disabled{opacity:.45;cursor:not-allowed}button:disabled:hover{background:var(--surface)}button.primary:disabled:hover{background:var(--accent)}