:root {
  --ink: #1c2430;
  --muted: #5b6675;
  --line: #d9dee5;
  --accent: #2f6fed;
  --accent-dark: #2456b8;
  --bg: #f6f8fb;
  --card: #ffffff;
  --error: #b42318;
  --success: #027a48;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.25rem; color: var(--accent); text-decoration: none; }
.site-header nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.site-header nav a { color: var(--ink); text-decoration: none; font-size: 0.95rem; }
.site-header nav a:hover { color: var(--accent); }
main { max-width: 900px; margin: 0 auto; padding: 1.5rem; }
footer { max-width: 900px; margin: 0 auto; padding: 1rem 1.5rem 3rem; color: var(--muted); font-size: 0.85rem; }
h1, h2, h3 { line-height: 1.25; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
label { display: block; font-weight: 600; margin-bottom: 0.25rem; font-size: 0.9rem; }
input, select, textarea, button {
  font: inherit;
  width: 100%;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}
textarea { min-height: 6rem; }
button, .button {
  display: inline-block;
  width: auto;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: 0.6rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}
button:hover, .button:hover { background: var(--accent-dark); }
button.secondary, .button.secondary { background: #e7ecf5; color: var(--ink); }
button.danger { background: #fde8e6; color: var(--error); }
.form-row { margin-bottom: 0.9rem; }
.inline { display: inline; }
.inline button { width: auto; }
.link-button { background: none; color: var(--ink); padding: 0; }
.link-button:hover { background: none; color: var(--accent); }
.flashes { list-style: none; padding: 0; margin: 0 0 1rem; }
.flash { padding: 0.6rem 0.9rem; border-radius: 8px; margin-bottom: 0.5rem; }
.flash.error { background: #fde8e6; color: var(--error); }
.flash.success { background: #e6f4ee; color: var(--success); }
table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.5rem 0.4rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.slot-list { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.slot-list li { margin: 0; }
.slot-button {
  width: auto;
  background: #eef3fe;
  color: var(--accent-dark);
  border: 1px solid #cddbfb;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}
.slot-button.selected { background: var(--accent); color: #fff; border-color: var(--accent); }
.badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.78rem; background: #eef3fe; color: var(--accent-dark); }
code { background: #eef1f5; padding: 0.1rem 0.3rem; border-radius: 4px; }
.copy { display: flex; gap: 0.5rem; align-items: center; }
.copy input { flex: 1; }