/* Basic, secure-by-default styles: no external fonts */
:root {
  --bg: #0b1220;
  --card: #101829;
  --muted: #7e8aa3;
  --text: #e8eefc;
  --accent: #5aa9ff;
  --ok: #10b981;
  --warn: #f59e0b;
  --error: #ef4444;
}

* { box-sizing: border-box; }

html { font-size: 16px; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.header {
  background: linear-gradient(135deg, #0b1220, #0a1a33);
  border-bottom: 1px solid #18223a;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.25rem;
}

.nav {
  display: flex; gap: 1rem; align-items: center; justify-content: space-between;
  padding: .75rem 0;
}
.nav a {
  color: var(--text); text-decoration: none; opacity: 0.9;
}
.nav a:hover { opacity: 1; }

.brand { font-weight: 700; letter-spacing: 0.3px; font-size: 1.05rem; }

.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; align-items: center;
  padding: 1.25rem 0;
}
.card {
  background: var(--card);
  border: 1px solid #1a2540;
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 10px 25px rgba(0,0,0,0.25);
}

.btn {
  display: inline-block;
  padding: .7rem 1rem;
  border-radius: 10px;
  background: var(--accent);
  color: white;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.footer {
  margin-top: 2rem;
  border-top: 1px solid #1a2540;
  color: var(--muted);
  font-size: 0.9rem;
  padding-top: 1rem;
}

.input, .select {
  width: 100%;
  padding: .7rem .85rem;
  border-radius: 10px;
  border: 1px solid #2a3a60;
  background: #0c1427;
  color: var(--text);
}

.label { display: block; margin-bottom: .4rem; color: #b9c7e4; }

.notice { font-size: .95rem; color: var(--muted); }
.status { font-weight: 700; }
.status.ok { color: var(--ok); }
.status.warn { color: var(--warn); }
.status.err { color: var(--error); }
code { background: #0c1427; padding: .1rem .3rem; border-radius: 6px; border:1px solid #2a3a60;}
pre { background: #0c1427; border:1px solid #2a3a60; padding: .75rem; border-radius: 8px; overflow-x:auto; }

img { max-width: 100%; height: auto; border-radius: 12px; border:1px solid #1a2540; }
figure { margin: 0; }
figcaption { color: var(--muted); font-size:.9rem; margin-top:.4rem; }