:root {
  --brand:#0a2540;
  --accent:#16a34a; /* green */
  --bg:#f8fafc;
  --card:#ffffff;
  --muted:#6b7280;
  --border:#e5e7eb;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, 'Apple Color Emoji', 'Segoe UI Emoji';
  color: var(--brand);
  background: radial-gradient(1200px 800px at 80% -10%, #e6f7ff 0%, #ffffff 50%) no-repeat, var(--bg);
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 960px; margin: 0 auto; padding: 24px; }

.nav {
  display:flex; align-items:center; gap:16px; padding:12px 0; margin-bottom: 12px;
}
.nav img.logo { height: 36px; }
.nav .spacer { flex:1; }
.nav .user { color: var(--muted); font-size: 14px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.04);
}

.btn {
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 18px; border-radius: 10px; border: none; cursor: pointer;
  font-weight: 600; font-size: 16px;
}
.btn-green { background: var(--accent); color: white; }
.btn-green:hover { filter: brightness(0.95); }

.input {
  width:100%; padding:12px 14px; border:1px solid var(--border);
  border-radius:10px; background:white; font-size:16px;
}
.label { display:block; font-size:14px; color:var(--muted); margin-bottom:6px; }

.grid {
  display:grid; gap:16px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.tool {
  display:flex; flex-direction:column; gap:10px;
}
.tool h3 { margin:0; }
.tool p { margin:0; color:var(--muted); }

.footer { margin-top: 40px; color: var(--muted); font-size: 13px; text-align:center; }