:root {
  --bg: #0f1220;
  --panel: #191d31;
  --panel-2: #232842;
  --text: #e8eaf5;
  --muted: #9aa0bd;
  --accent: #5865f2;        /* Discord blurple */
  --accent-hover: #4752c4;
  --border: #2c3252;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

h1 {
  font-size: 1.8rem;
  margin: 0 0 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: #2b3152; }
.btn.discord { background: var(--accent); border-color: var(--accent); }
.btn.discord:hover { background: var(--accent-hover); }
.btn.ghost { background: transparent; }

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.spacer { flex: 1; }
.profile { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.profile img { border-radius: 50%; }

.pill {
  font-size: 0.85rem;
  color: var(--muted);
  background: var(--panel-2);
  padding: 4px 10px;
  border-radius: 999px;
}

.hint { color: var(--muted); font-size: 0.9rem; }

.messages {
  list-style: none;
  margin: 16px 0;
  padding: 12px;
  height: 340px;
  overflow-y: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.messages li { padding: 4px 0; }
.messages li.system { color: var(--muted); font-style: italic; }
.messages img { vertical-align: middle; border-radius: 50%; }

.class-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 16px;
}
.class-card {
  text-align: left;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  transition: border-color 0.15s, background 0.15s;
}
.class-card:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--panel-2);
}
.class-card:disabled { opacity: 0.5; cursor: default; }
.class-card h3 { margin: 0 0 6px; font-size: 1.05rem; }
.class-card p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.chat-form { display: flex; gap: 8px; }
.chat-form input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 0.95rem;
}