:root{
  --bg:#fff3f2;
  --card:#ffffff;
  --accent:#ff9fae;
  --muted:#6b6b6b;
  --radius:14px;
  font-family: "Vazirmatn", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;background:var(--bg);color:#222}
.app{max-width:480px;margin:0 auto;padding:16px 12px 80px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.topbar h1{margin:0;font-size:1.05rem}
a{color:var(--accent);text-decoration:none}
.card{background:var(--card);border-radius:var(--radius);padding:14px;box-shadow:0 6px 18px rgba(0,0,0,0.04);margin-bottom:12px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;margin:8px 0}
input{width:100%;padding:8px;border-radius:8px;border:1px solid #eee}
.btn{background:var(--accent);color:#fff;padding:8px 12px;border-radius:10px;border:0;cursor:pointer}
.btn.ghost{background:transparent;color:#555;border:1px solid #eee}
.notice{background:#e9fff3;border-left:4px solid #7ee9b6;padding:8px;margin:8px 0}
.error{background:#ffecec;border-left:4px solid #ff6b6b;padding:8px;margin:8px 0}
.muted{color:var(--muted)}
.bottom-nav{position:fixed;left:0;right:0;bottom:10px;max-width:480px;margin:0 auto;display:flex;justify-content:space-around;background:linear-gradient(180deg, rgba(255,255,255,0.95), rgba(255,255,255,0.95));padding:10px 12px;border-radius:22px;box-shadow:0 8px 20px rgba(0,0,0,0.06)}
.nav-item{font-size:0.85rem;text-decoration:none;color:#777;padding:8px 10px;border-radius:12px}
.nav-item.active{color:var(--accent);font-weight:700}
@media(min-width:700px){.app{padding:18px}.grid{grid-template-columns:repeat(3,1fr)}.bottom-nav{position:static;margin-top:18px;border-radius:12px}}