:root {
  --bg: #0b0f14;
  --bg-elev: #141b24;
  --bg-elev-2: #1a2332;
  --border: #1f2a36;
  --text: #e6edf3;
  --text-dim: #94a3b8;
  --text-faint: #64748b;
  --accent-ccs: #3b82f6;
  --accent-ccd: #f59e0b;
  --accent-ctg: #06b6d4;
  --success: #4ade80;
  --warn: #fbbf24;
  --danger: #fb7185;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--accent-ccs); }
code { font-family: "SF Mono", Menlo, monospace; font-size: 13px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  gap: 24px;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-logo { font-weight: 700; color: var(--text); margin-right: 16px; }
.nav-item { color: var(--text-dim); text-decoration: none; padding: 6px 0; border-bottom: 2px solid transparent; }
.nav-item.active { color: var(--text); border-bottom-color: var(--success); }
.nav-spacer { flex: 1; }
.nav-user { color: var(--text-faint); font-size: 12px; display: flex; gap: 8px; align-items: center; }
.nav-user form { display: inline; }
.nav-user button { background: none; border: none; color: var(--text-faint); cursor: pointer; font: inherit; padding: 0; }
.nav-user button:hover { color: var(--text); }

/* Auth screens (setup + login + error) */
.auth-screen {
  max-width: 400px;
  margin: 15vh auto;
  padding: 32px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.auth-screen h1 { margin-top: 0; font-size: 18px; }
.auth-screen label { display: block; margin-bottom: 14px; }
.auth-screen label > span { display: block; font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.auth-screen input { width: 100%; padding: 8px 10px; background: var(--bg); color: var(--text); border: 1px solid var(--border); border-radius: 4px; font-size: 14px; }
.auth-screen button { background: var(--accent-ccs); color: var(--bg); border: none; padding: 8px 16px; border-radius: 4px; cursor: pointer; font-weight: 600; }
.alert { padding: 10px 12px; border-radius: 4px; margin-bottom: 14px; font-size: 13px; }
.alert-error { background: rgba(251,113,133,0.1); border-left: 3px solid var(--danger); color: var(--danger); }

main.page { padding: 24px; }

h1, h2, h3 { color: var(--text); margin-top: 0; }
h1 { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; }
h2 { font-size: 16px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-dim); }