:root{
  --bg:#f5f6f8;
  --card:#ffffff;
  --border:#dfe3e7;
  --text:#111827;
  --muted:#6b7280;
  --primary:#111827;
  --primary-text:#ffffff;
  --error-bg:#fef2f2;
  --error-border:#fecaca;
  --error-text:#991b1b;
  --success-bg:#f0fdf4;
  --success-border:#bbf7d0;
  --success-text:#166534;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}

.muted{color:var(--muted);font-size:14px}

/* Login / Setup */
.login-page{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.login-box{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:14px;
  padding:28px;
  width:100%;
  max-width:380px;
}
.login-box h1{margin:0 0 4px;font-size:22px}
.login-box form{display:flex;flex-direction:column;gap:14px;margin-top:18px}
.login-box label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600}

input[type=text],input[type=password]{
  padding:11px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  font-size:16px;
  background:#fff;
}

button{
  min-height:44px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  padding:9px 13px;
  font-size:15px;
  cursor:pointer;
}
button.primary{background:var(--primary);color:var(--primary-text);border-color:var(--primary)}

.error-box{
  background:var(--error-bg);
  border:1px solid var(--error-border);
  color:var(--error-text);
  padding:12px 14px;
  border-radius:10px;
  font-size:14px;
  margin-top:14px;
}
.success-box{
  background:var(--success-bg);
  border:1px solid var(--success-border);
  color:var(--success-text);
  padding:12px 14px;
  border-radius:10px;
  font-size:14px;
  margin-top:14px;
}

/* App-Layout nach dem Login */
.app-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  background:var(--card);
  border-bottom:1px solid var(--border);
  padding:14px 20px;
}
.app-header .muted{margin-left:10px}
.logout-link{color:var(--muted);text-decoration:none;font-size:14px}
.logout-link:hover{text-decoration:underline}

.content{max-width:760px;margin:24px auto;padding:0 16px}

.info-box{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:12px;
  padding:18px 20px;
  margin-bottom:16px;
}
.info-box h2,.info-box h3{margin-top:0}