:root {
  --bg: #0b0c10;
  --panel: #141723;
  --border: #2a2f3a;
  --text: #e9e9ee;
  --muted: rgba(233,233,238,0.75);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.4;
}

.wrap {
  width: min(960px, 92vw);
  margin: 0 auto;
  padding: 20px 0;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-weight: 700;
  letter-spacing: 0.5px;
}

h1 {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 38px);
  letter-spacing: 0.2px;
}

.sub {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  padding: 10px 0 0;
}

/* Responsive: stack cards on smaller screens */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
  .brand { align-items: flex-start; }
  .logo { margin-top: 4px; }
}

.card {
  display: block;
  padding: 16px;
  border-radius: 18px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: transform 120ms ease;
}

.card:hover { transform: translateY(-2px); }

.card h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.card p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.tag {
  display: inline-block;
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
}

.disabled {
  cursor: not-allowed;
  opacity: 0.9;
}

.note {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px dashed var(--border);
  color: var(--muted);
}

.foot {
  padding: 10px 0 26px;
  color: var(--muted);
  font-size: 13px;
}


.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: #1a1f2d;
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
}

.btn:hover { transform: translateY(-1px); }

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
}