:root {
  --bg: #0f1115;
  --card: #161a22;
  --text: #e6e8eb;
  --muted: #9aa3ad;
  --accent: #25d366;
  --accent-dark: #002f1a;
  --danger: #e74c3c;
  --warn: #f0a500;
  --border: #232a35;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.hidden { display: none !important; }
.muted { color: var(--muted); }

body.auth {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.card {
  background: var(--card);
  padding: 2rem;
  border-radius: 12px;
  max-width: 400px;
  width: 100%;
  border: 1px solid var(--border);
}
.card h1 { margin: 0 0 0.5rem; font-size: 1.5rem; }
.subtitle { color: var(--muted); margin: 0 0 1.5rem; }
.error {
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid var(--danger);
  color: #ff8a7d;
  padding: 0.75rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}
form label { display: block; margin-bottom: 1rem; }
form input {
  display: block;
  width: 100%;
  padding: 0.6rem 0.75rem;
  background: #0c0f15;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  margin-top: 0.3rem;
  font-size: 1rem;
}
form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
  border-color: var(--accent);
}
button {
  background: var(--accent);
  color: var(--accent-dark);
  border: none;
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}
button:hover { filter: brightness(1.1); }
button.danger { background: var(--danger); color: white; }
button.link {
  background: none;
  color: var(--muted);
  padding: 0;
  font-weight: normal;
  text-decoration: underline;
}
button.link:hover { color: var(--text); filter: none; }

body.painel { padding: 0; }
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--card);
}
header h1 { margin: 0; font-size: 1.15rem; }
header .user {
  color: var(--muted);
  display: flex;
  gap: 1rem;
  align-items: center;
}
header .user form { margin: 0; }
main {
  max-width: 720px;
  margin: 2rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}
section h2 { margin: 0 0 1rem; font-size: 1.1rem; }
.status {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  background: rgba(255,255,255,0.05);
  color: var(--muted);
}
.status.qr,
.status.authenticating { background: rgba(240, 165, 0, 0.15); color: var(--warn); }
.status.ready { background: rgba(37, 211, 102, 0.15); color: var(--accent); }
.status.error { background: rgba(231, 76, 60, 0.15); color: #ff8a7d; }
.help { color: var(--muted); margin: 1rem 0 0; }
.steps { color: var(--muted); padding-left: 1.2rem; }
.steps strong { color: var(--text); }
.qr-card img {
  background: white;
  padding: 1rem;
  border-radius: 12px;
  display: block;
  margin: 1rem auto;
  max-width: 320px;
  width: 100%;
  height: auto;
}
.connected-card form { margin-top: 1rem; }