:root{--bg:#fff;--surface:#f5f5f5;--text:#111;--muted:#606060;--accent:#6c47ff;--border:#e0e0e0;--radius-card:12px;--radius-input:8px;--radius-btn:6px;--shadow:0 6px 18px #11111114}[data-theme=dark]{--bg:#0f0f0f;--surface:#1a1a1a;--text:#f0f0f0;--muted:#ababab;--accent:#7c5cff;--border:#2a2a2a;--shadow:0 0 16px #7c5cff52}*,:before,:after{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);padding-top:68px;font-family:DM Sans,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.55;transition:background-color .2s,color .2s}a{color:inherit;text-decoration:none}.container{width:min(1120px,92%);margin:0 auto}.topbar{z-index:20;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border-bottom:0;transition:background-color .2s,border-bottom-color .2s,-webkit-backdrop-filter .2s,backdrop-filter .2s;position:fixed;top:0;left:0;right:0}.topbar.is-scrolled{background:color-mix(in srgb, var(--surface) 86%, transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border)}.topbar-inner{grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;min-height:68px;display:grid}.logo{align-items:center;min-height:44px;display:inline-flex}.logo-image{width:auto;max-width:220px;height:34px;display:block}.nav-center{justify-content:center;gap:18px;display:flex}.nav-link{border-radius:8px;align-items:center;min-height:44px;padding:10px 12px;display:inline-flex;position:relative}.nav-link:hover{background:var(--surface)}.nav-link.active{color:var(--text);font-weight:800}.nav-link.active:after{content:"";background:var(--accent);border-radius:2px;height:2px;position:absolute;bottom:8px;left:12px;right:12px}.top-actions{justify-content:flex-end;gap:10px;display:flex}.tools-dropdown{position:relative}.dropdown-menu{opacity:0;visibility:hidden;pointer-events:none;background:var(--surface);border:1px solid var(--border);width:min(360px,85vw);box-shadow:var(--shadow);border-radius:12px;padding:10px;transition:opacity .18s,transform .18s,visibility .18s;position:absolute;top:calc(100% + 12px);left:50%;transform:translate(-50%)translateY(-6px)}.tools-dropdown:hover .dropdown-menu,.tools-dropdown.open .dropdown-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%)translateY(0)}.dropdown-item{border-radius:10px;align-items:flex-start;gap:12px;min-height:52px;padding:10px 12px;display:flex}.dropdown-item:hover{background:color-mix(in srgb, var(--accent) 10%, transparent)}.dropdown-item.active{background:color-mix(in srgb, var(--accent) 12%, transparent);border:1px solid color-mix(in srgb, var(--accent) 35%, transparent)}.dropdown-icon{background:color-mix(in srgb, var(--accent) 12%, transparent);width:36px;height:36px;color:var(--accent);border-radius:10px;flex:none;justify-content:center;align-items:center;font-size:18px;display:inline-flex}.dropdown-title{font-weight:900;line-height:1.2}.dropdown-desc{color:var(--muted);margin-top:2px;font-size:.92rem;font-weight:600;display:block}.dropdown-footer{padding:8px 8px 2px}.icon-btn{border:1px solid var(--border);border-radius:var(--radius-btn);background:var(--surface);min-width:44px;min-height:44px;color:var(--text);cursor:pointer;justify-content:center;align-items:center;display:inline-flex}.icon-btn:hover{border-color:var(--accent)}.theme-icon-btn{width:44px;height:44px;padding:0;transition:background-color .2s,color .2s,border-color .2s,box-shadow .2s,transform .2s}.theme-icon{object-fit:contain;width:20px;height:20px;display:block}.theme-icon-sun,.theme-icon-moon{transition:opacity .18s,transform .18s;position:absolute}.theme-icon-btn{position:relative}.theme-icon-btn[data-theme=light]{color:#111827;background:#f3f4f6;border-color:#eceef2;box-shadow:inset 0 1px #ffffffb3}.theme-icon-btn[data-theme=dark]{color:#f3f4f6;background:#17181d;border-color:#24262d;box-shadow:inset 0 1px #ffffff0a}.theme-icon-btn[data-theme=light] .theme-icon-moon{opacity:1;transform:scale(1)}.theme-icon-btn[data-theme=light] .theme-icon-sun{opacity:0;transform:scale(.7)}.theme-icon-btn[data-theme=dark] .theme-icon-sun{opacity:1;transform:scale(1)}.theme-icon-btn[data-theme=dark] .theme-icon-moon{opacity:0;transform:scale(.7)}.hamburger{display:none}.hero{text-align:center;padding:24px 0}.hero h1{margin:0;font-size:clamp(2rem,4.2vw,3.8rem);line-height:1.15}.hero p{color:var(--muted);max-width:62ch;margin:14px auto 0;font-size:clamp(1rem,2vw,1.2rem)}.search-wrap{max-width:760px;margin:24px auto 0}.search-input,.field,.textarea,.select{border:1px solid var(--border);border-radius:var(--radius-input);background:var(--surface);width:100%;min-height:48px;color:var(--text);padding:12px 14px}.textarea{resize:vertical;min-height:220px}.search-input:focus,.field:focus,.textarea:focus,.select:focus{outline:2px solid color-mix(in srgb, var(--accent) 40%, transparent);outline-offset:1px}.section-title{margin:26px 0 14px;font-size:clamp(1.4rem,2.8vw,2rem)}.tools-grid{grid-template-columns:1fr;gap:16px;padding-bottom:44px;display:grid}.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:18px;transition:transform .2s,box-shadow .2s,border-color .2s}.tool-card:hover{box-shadow:var(--shadow);border-color:color-mix(in srgb, var(--accent) 45%, var(--border));transform:translateY(-4px)}.tool-icon{width:28px;height:28px;color:var(--accent);margin-bottom:6px}.tool-card h3{margin:0;font-size:1.1rem}.tool-card p{color:var(--muted);margin:8px 0 14px}.tool-link{color:var(--accent);font-weight:700}.page-shell{padding:18px 0 44px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:16px}.narrow{width:min(540px,92%)}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);padding:18px}.form-grid{gap:14px;display:grid}.auth-form{gap:10px;display:grid}.label{color:var(--muted);margin:0 0 6px;font-size:.95rem;display:inline-block}.button-row{flex-wrap:wrap;gap:10px;display:flex}.btn{border:1px solid var(--border);border-radius:var(--radius-btn);cursor:pointer;min-height:44px;padding:10px 14px;font-weight:700}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn.ghost{color:var(--text);background:0 0}.alert{border-radius:8px;margin:14px 0;padding:10px 12px;font-weight:600}.alert.error{color:#fecaca;background:#7f1d1d}.alert.success{color:#bbf7d0;background:#14532d}.options-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.switch-line{align-items:center;gap:8px;min-height:44px;display:flex}.output{white-space:pre-wrap;background:color-mix(in srgb, var(--surface) 70%, transparent);border:1px solid var(--border);border-radius:var(--radius-card);min-height:180px;padding:14px}.footer{border-top:1px solid var(--border);background:var(--surface);color:var(--muted);margin-top:18px;padding:64px 0 40px}.footer-grid{grid-template-columns:1fr;gap:28px;display:grid}.footer-brand-link{align-items:center;gap:10px;display:inline-flex}.footer-logo{width:auto;height:30px}.footer-site-name{color:var(--text);font-weight:800}.footer-tagline{margin:12px 0 16px}.footer-badge{border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:6px 10px;font-size:.78rem;display:inline-flex}.footer-column{align-content:start;gap:10px;display:grid}.footer-heading{color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin:0 0 4px;font-size:12px}.footer-link,.footer-muted{color:var(--muted);transition:color .2s}.footer-link:hover{color:var(--text)}.footer-bottom{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin-top:32px;padding-top:18px;display:flex}.drawer-overlay{opacity:0;pointer-events:none;background:#00000073;transition:opacity .2s;position:fixed;inset:0}.drawer{background:var(--surface);border-left:1px solid var(--border);align-content:start;gap:10px;width:min(320px,82vw);height:100vh;padding:18px;transition:transform .2s;display:grid;position:fixed;top:0;right:0;transform:translate(100%)}.drawer.open{transform:translate(0)}.drawer-overlay.open{opacity:1;pointer-events:auto}.drawer-top{justify-content:space-between;display:flex}.drawer-link{border-radius:8px;align-items:center;min-height:44px;padding:8px;display:inline-flex}.drawer-link:hover{background:color-mix(in srgb, var(--accent) 8%, transparent)}@media (min-width:768px){.tools-grid,.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:1024px){.tools-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.footer-grid{grid-template-columns:1.2fr 1fr 1fr 1fr}}@media (max-width:767px){.nav-center{display:none}.hamburger{display:inline-flex}.topbar-inner{grid-template-columns:1fr auto}.options-grid{grid-template-columns:1fr}.footer{padding:40px 0 32px}}