:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2129;
  --border: #2d333b;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #2f81f7;
  --ok: #3fb950;
  --warn: #d29922;
  --error: #f85149;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Menlo", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

header {
  margin-bottom: 32px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 8px;
}

h1 {
  font-size: 30px;
  font-weight: 650;
  margin: 0 0 6px;
  letter-spacing: -0.01em;
}

.sub {
  color: var(--muted);
  margin: 0;
  font-size: 15px;
}

/* Eingabe */
.controls {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  display: grid;
  grid-template-columns: 1fr 270px auto;
  gap: 12px;
  align-items: end;
}

.field label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
}

.field input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
  border-color: var(--accent);
}

button.run {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
button.run:hover { filter: brightness(1.08); }
button.run:disabled { opacity: 0.5; cursor: default; }
button.run:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }

@media (max-width: 640px) {
  .controls { grid-template-columns: 1fr; }
}

/* Ergebnisse */
#results { margin-top: 28px; }

.summary {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 14px;
  padding: 14px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
  background: var(--panel-2);
}
.summary .dom { color: var(--text); font-weight: 600; }
.summary.ok { border-color: rgba(63,185,80,0.4); }
.summary.warn { border-color: rgba(210,153,34,0.4); }
.summary.error { border-color: rgba(248,81,73,0.4); }

.check {
  display: grid;
  grid-template-columns: auto 64px 1fr;
  gap: 14px;
  align-items: start;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 10px;
}

/* Signatur: Status-Lampe */
.lamp {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  margin-top: 5px;
  flex: none;
  position: relative;
}
.lamp::after {
  content: "";
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  opacity: 0.25;
}
.lamp.ok { background: var(--ok); box-shadow: 0 0 0 1px rgba(63,185,80,0.5); }
.lamp.ok::after { background: var(--ok); }
.lamp.warn { background: var(--warn); box-shadow: 0 0 0 1px rgba(210,153,34,0.5); }
.lamp.warn::after { background: var(--warn); }
.lamp.error { background: var(--error); box-shadow: 0 0 0 1px rgba(248,81,73,0.5); }
.lamp.error::after { background: var(--error); }

.tag {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  padding-top: 2px;
}

.check .title { font-weight: 600; margin: 0 0 4px; font-size: 15px; }
.check .detail { color: var(--muted); font-size: 14px; margin: 0; }

.raw {
  margin-top: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: #b8c2cc;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-x: auto;
}

/* Antwort-Block */
.reply-card {
  margin-top: 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
}
.reply-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.reply-head h2 {
  font-size: 15px;
  margin: 0;
  font-weight: 600;
}
.reply-head .note { font-size: 12px; color: var(--muted); font-family: var(--mono); }
.copy {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 7px;
  padding: 7px 14px;
  font-size: 13px;
  cursor: pointer;
}
.copy:hover { border-color: var(--accent); }
.copy.done { border-color: var(--ok); color: var(--ok); }

textarea#reply {
  width: 100%;
  min-height: 200px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.6;
  resize: vertical;
}
textarea#reply:focus { outline: 2px solid var(--accent); border-color: var(--accent); }

/* Login */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
}
.login-card h1 { font-size: 24px; margin: 0 0 4px; }
.login-card .sub { margin-bottom: 22px; }
.login-form .field { margin-bottom: 16px; }
.login-form .run { width: 100%; margin-top: 6px; }
.login-error {
  background: rgba(248,81,73,0.08);
  border: 1px solid rgba(248,81,73,0.4);
  color: var(--error);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  margin-bottom: 18px;
}

/* Logout-Link im Header */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.logout-link {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 7px;
  white-space: nowrap;
}
.logout-link:hover { border-color: var(--accent); color: var(--text); }

.error-msg {
  color: var(--error);
  font-family: var(--mono);
  font-size: 14px;
  padding: 14px 16px;
  border: 1px solid rgba(248,81,73,0.4);
  border-radius: 10px;
  background: rgba(248,81,73,0.06);
}

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

@media (prefers-reduced-motion: no-preference) {
  .lamp.ok::after, .lamp.warn::after, .lamp.error::after {
    animation: pulse 2.4s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 0.1; }
    50% { opacity: 0.3; }
  }
}