:root{--accent:#2563eb;--bg:#f7f8fa;--card:#fff;--text:#1a2233;--muted:#667085;--border:#e5e7eb}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
.container{max-width:960px;margin:0 auto;padding:0 16px}
.site-header{background:var(--card);border-bottom:1px solid var(--border)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-weight:700;font-size:20px;color:var(--text);text-decoration:none}
.logo span{color:var(--accent)}
.hero{text-align:center;padding:40px 0 8px}
.hero h1{font-size:30px;margin:0 0 8px}
.hero p{color:var(--muted);margin:0}
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin:24px 0}
.tool-card{display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;text-decoration:none;color:inherit;transition:box-shadow .15s,transform .15s}
.tool-card:hover{box-shadow:0 6px 20px rgba(0,0,0,.08);transform:translateY(-2px)}
.tool-card .emoji{font-size:28px}
.tool-card h3{margin:8px 0 4px;font-size:18px}
.tool-card p{margin:0;color:var(--muted);font-size:14px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin:16px 0}
.btn{display:inline-block;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:10px 18px;font-size:15px;cursor:pointer;text-decoration:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.dropzone{border:2px dashed var(--border);border-radius:12px;padding:40px;text-align:center;color:var(--muted);cursor:pointer;background:var(--card)}
.dropzone.drag{border-color:var(--accent);background:#eef2ff}
textarea.output{width:100%;min-height:280px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;padding:12px;border:1px solid var(--border);border-radius:8px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.ad-slot{background:#eef1f5;border:1px dashed #cbd3e0;border-radius:8px;color:#98a2b3;text-align:center;padding:18px;margin:16px 0;font-size:13px}
.site-footer{border-top:1px solid var(--border);background:var(--card);margin-top:40px;padding:20px 0;color:var(--muted);font-size:14px}
.site-footer nav a{color:var(--muted);text-decoration:none;margin-right:12px}
.privacy-note{color:var(--muted);font-size:13px;margin-top:8px}