:root{--bg:#f5f7fb;--card:#ffffff;--text:#0f172a;--muted:#4b5563;--border:#e2e8f0;--border-strong:#cbd5e1;--accent:#2f6bff;--accent2:#1f59e8;--accent-soft:rgba(47,107,255,.14);--shadow:0 18px 40px rgba(15,23,42,.12);--shadow-soft:0 10px 22px rgba(15,23,42,.08);--surface:#f2f5ff;--surface-soft:#f8faff;--input-bg:#ffffff;--link:#2f6bff;--meta:#64748b;--label:#475569;--small:#64748b}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:"Manrope","Segoe UI",Tahoma,Arial,sans-serif;background:linear-gradient(180deg,#f8fbff 0%,var(--bg) 100%);color:var(--text)}
body::before{content:"";position:fixed;inset:0;background:radial-gradient(900px 480px at 12% -10%,#ffffff 0%,rgba(255,255,255,0) 60%),radial-gradient(700px 360px at 100% 0%,rgba(47,107,255,.12) 0%,rgba(47,107,255,0) 60%),linear-gradient(90deg,rgba(15,23,42,.035) 1px,transparent 1px),linear-gradient(180deg,rgba(15,23,42,.035) 1px,transparent 1px);background-size:auto,auto,72px 72px,72px 72px;pointer-events:none;z-index:-1}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:26px 16px 60px}
.header{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:14px}
.brand{display:flex;gap:10px;align-items:center}
.logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--accent),#50b3ff);box-shadow:var(--shadow-soft)}
.brand b{font-size:16px;letter-spacing:.2px}
.nav{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:flex-end}
.nav a{font-size:13px;opacity:.9;padding:8px 12px;border:1px solid transparent;border-radius:999px}
.nav a:hover{border-color:#d8e2ff;background:#eef4ff;color:var(--accent2)}
.card{background:var(--card);border:1px solid var(--border);border-radius:22px;padding:22px;box-shadow:var(--shadow)}
h1{margin:0 0 8px;font-size:30px;letter-spacing:-.02em}
.lead{margin:0;color:var(--muted);line-height:1.6}
.grid{display:grid;grid-template-columns:1.15fr .85fr;gap:14px;margin-top:14px}
@media (max-width:900px){.grid{grid-template-columns:1fr}}
.drop{border:2px dashed var(--border-strong);border-radius:18px;padding:18px;text-align:center;background:var(--surface-soft);transition:.15s ease}
.drop.drag{border-color:var(--accent2);background:var(--accent-soft)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;margin-top:12px}
button,input,select{border-radius:12px;border:1px solid var(--border);background:var(--input-bg);color:var(--text);padding:10px 12px}
button{cursor:pointer}
button.primary{background:var(--accent);border-color:var(--accent);color:#ffffff;box-shadow:0 10px 20px rgba(47,107,255,.2)}
button.primary:hover{background:var(--accent2);border-color:var(--accent2)}
button:not(.primary):hover{border-color:var(--border-strong);background:var(--surface)}
button:disabled{opacity:.5;cursor:not-allowed}
.meta{font-size:13px;color:var(--meta);margin-top:10px}
.preview{display:grid;gap:10px}
.imgbox{background:var(--surface-soft);border:1px solid var(--border);border-radius:18px;padding:12px}
.label{font-size:13px;color:var(--label);margin:0 0 6px}
.imgbox img{width:100%;height:auto;display:block;border-radius:14px}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:520px){.kv{grid-template-columns:1fr}}
.kv > div{display:flex;gap:8px;align-items:center;justify-content:space-between;border:1px solid var(--border);border-radius:14px;padding:10px 12px;background:var(--surface-soft)}
.kv label{font-size:13px;color:var(--label)}
.kv input[type="number"]{width:140px;max-width:45vw}
.small{font-size:12px;color:var(--small)}
.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
@media (max-width:900px){.tools{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.tools{grid-template-columns:1fr}}
.tool{border:1px solid var(--border);border-radius:18px;padding:14px;background:var(--surface-soft);box-shadow:var(--shadow-soft);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.tool:hover{transform:translateY(-2px);border-color:#c7d7ff;box-shadow:0 16px 34px rgba(15,23,42,.12)}
.tool b{display:block;margin-bottom:6px}
.footer{margin-top:18px;font-size:13px;color:var(--meta)}
hr.sep{border:none;border-top:1px solid var(--border);margin:14px 0}
.badge{display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border-radius:999px;border:1px solid #dbe4ff;background:#eef4ff;font-size:12px;color:#1e3a8a}