:root {
  --bg: #f1f5f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #cbd5e1;
  --primary: #2563eb;
  --success-bg: #dcfce7; --success-text: #166534;
  --error-bg: #fee2e2;   --error-text: #991b1b;
  --info-bg: #e0e7ff;    --info-text: #3730a3;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --card: #1e293b;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #334155;
    --primary: #60a5fa;
    --success-bg: #14532d; --success-text: #bbf7d0;
    --error-bg: #7f1d1d;   --error-text: #fecaca;
    --info-bg: #312e81;    --info-text: #c7d2fe;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, sans-serif;
}

.card {
  max-width: 520px;
  margin: 32px auto;
  padding: 24px;
  background: var(--card);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.15);
}

h1 { margin: 0 0 12px; font-size: 1.5rem; }
a { color: var(--primary); }

label { display: block; margin: 12px 0; font-weight: 600; }

input, textarea {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

button {
  padding: 10px 16px;
  border: 0;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
button:disabled { opacity: 0.6; cursor: wait; }
button.secondary { background: var(--muted); }
button[hidden] { display: none; }

.buttons { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }

.msg { padding: 10px 12px; border-radius: 8px; }
.msg.success { background: var(--success-bg); color: var(--success-text); }
.msg.error   { background: var(--error-bg);   color: var(--error-text); }
.msg.info    { background: var(--info-bg);    color: var(--info-text); }

.topbar { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.small { font-size: 0.9rem; }

h2 { margin: 32px 0 0; font-size: 1.15rem; }
.muted { color: var(--muted); }
.bad { color: var(--error-text); }

fieldset { margin: 16px 0; border: 1px solid var(--border); border-radius: 8px; }
.recipient { display: flex; gap: 10px; align-items: flex-start; font-weight: normal; }
.recipient input { width: auto; margin-top: 5px; }
.recipient small { color: var(--muted); }

/* Backend: Protokoll der gesendeten Nachrichten */
.log-entry { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border); }
.log-entry p { margin: 2px 0 8px; }
.log-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: 2px 12px; }
.log-head small { color: var(--muted); }
table.log { width: 100%; table-layout: fixed; border-collapse: collapse; font-size: 0.9rem; font-variant-numeric: tabular-nums; }
table.log th:first-child { width: 44%; }
table.log th { padding: 4px 8px 4px 0; text-align: left; font-weight: 600; color: var(--muted); }
table.log td { padding: 6px 8px 6px 0; border-top: 1px solid var(--border); vertical-align: top; }
table.log td small { display: block; color: var(--muted); }