:root{--bg: #f6f7f9;--surface: #ffffff;--text: #1a1d21;--muted: #6b7280;--border: #e5e7eb;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--success-bg: #dcfce7;--success-text: #166534;--warn-bg: #fef3c7;--warn-text: #92400e;--radius: 10px;--shadow: 0 1px 3px rgba(0, 0, 0, .08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}.shell{display:flex;flex-direction:column;min-height:100vh}.container{width:100%;max-width:1080px;margin:0 auto;padding:0 1.25rem}.main{flex:1;padding-top:2rem;padding-bottom:3rem}.navbar{position:sticky;top:0;z-index:10;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.navbar-inner{display:flex;align-items:center;justify-content:space-between;height:60px}.brand{font-weight:800;font-size:1.15rem;text-decoration:none;color:var(--text);letter-spacing:-.02em}.brand span{color:var(--primary)}.user-menu{display:flex;align-items:center;gap:.75rem}.user-email{color:var(--muted);font-size:.875rem;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.footer{border-top:1px solid var(--border);padding:1.25rem 0;background:var(--surface)}.hero h1{margin:0 0 .25rem;font-size:1.75rem;letter-spacing:-.02em}.hero{margin-bottom:1.5rem}.hero.landing{text-align:center;padding:3rem 1rem 2.5rem;margin:0 auto 1.5rem;max-width:46rem}.hero.landing h1{font-size:2.25rem;margin-bottom:.6rem}.hero-sub{font-size:1.05rem;margin:0 auto 1.4rem;max-width:34rem}.hero-actions{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap}.guest-banner{border:1px solid var(--border);border-left:3px solid 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.6rem;border-radius:999px;font-size:.75rem;font-weight:600;background:var(--border);color:var(--muted);white-space:nowrap}.badge.success{background:var(--success-bg);color:var(--success-text)}.badge.warn{background:var(--warn-bg);color:var(--warn-text)}.btn{display:inline-block;border:1px solid transparent;border-radius:8px;padding:.5rem 1rem;font-size:.9rem;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s ease,color .15s ease}.btn.primary{background:var(--primary);color:#fff}.btn.primary:hover:not(:disabled){background:var(--primary-hover)}.btn.ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn.ghost:hover:not(:disabled){background:var(--bg)}.btn.danger{background:transparent;color:var(--danger);border-color:var(--border)}.btn.danger:hover:not(:disabled){background:#fef2f2}.btn:disabled{opacity:.55;cursor:not-allowed}.link{background:none;border:none;padding:0;color:var(--primary);cursor:pointer;font:inherit;text-decoration:underline}.form{display:flex;flex-direction:column;gap:.9rem}.field{display:flex;flex-direction:column;gap:.3rem;font-size:.875rem;font-weight:600;color:var(--muted)}.input{border:1px solid var(--border);border-radius:8px;padding:.55rem .75rem;font-size:.95rem;font-family:inherit;background:#fff;color:var(--text)}.input:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}textarea.input{resize:vertical}.password-field{display:flex;gap:.4rem;align-items:stretch}.password-field .input{flex:1}.password-toggle{white-space:nowrap}.login-divider{display:flex;align-items:center;gap:.6rem}.login-divider:before,.login-divider:after{content:"";flex:1;height:1px;background:var(--border)}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:var(--bg)}.login-card{width:100%;max-width:380px}.login-card h1{margin:0 0 .25rem;font-size:1.4rem}.muted{color:var(--muted)}.error-panel{background:#fef2f2;border:1px solid #fecaca;color:#991b1b;border-radius:8px;padding:.75rem 1rem;font-size:.9rem}.empty-state{border:1px dashed var(--border);border-radius:var(--radius);padding:2rem;text-align:center;color:var(--muted);background:var(--surface)}.tool-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem}.tool-header h1{margin:0;font-size:1.5rem}.tool-header p{margin:.15rem 0 0}.tool-grid{display:grid;grid-template-columns:minmax(280px,380px) 1fr;gap:1.25rem;align-items:start}@media (max-width: 760px){.tool-grid{grid-template-columns:1fr}}.item-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.75rem}.item .item-head{display:flex;justify-content:space-between;gap:.75rem;align-items:baseline}.item .item-content{margin:.5rem 0;white-space:pre-wrap;word-break:break-word}.item-actions{display:flex;gap:.5rem;margin-top:.75rem}.upsell{max-width:460px;text-align:center;margin:2rem auto}.upsell .price{font-size:1.4rem;font-weight:700;margin:.5rem 0 1rem}