:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --text: #1b1f24;
  --muted: #6b7280;
  --border: #e3e6ea;
  --accent: #2f6fed;
  --accent-dark: #1f4fbf;
  --danger: #d64545;
  --ok: #1a9e5c;
  --warn: #c98a12;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header.topbar .brand { font-weight: 700; font-size: 1.1rem; }
header.topbar nav a { margin-right: 1rem; color: var(--text); }
header.topbar nav a.active { color: var(--accent); font-weight: 600; }

main.container {
  max-width: 960px;
  margin: 1.5rem auto;
  padding: 0 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 0 0 0.75rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
th { color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  cursor: pointer;
}
.btn:hover { background: var(--accent-dark); text-decoration: none; }
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--danger); }
.btn.small { padding: 0.25rem 0.55rem; font-size: 0.8rem; }

.badge { display: inline-block; padding: 0.1rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge.ok { background: #e3f8ec; color: var(--ok); }
.badge.warn { background: #fdf1dc; color: var(--warn); }
.badge.off { background: #eee; color: var(--muted); }
.badge.danger { background: #fbe6e6; color: var(--danger); }

form.stacked label { display: block; margin: 0.75rem 0 0.25rem; font-size: 0.85rem; font-weight: 600; }
form.stacked input[type=text], form.stacked input[type=password], form.stacked input[type=email],
form.stacked input[type=number], form.stacked input[type=url], form.stacked select, form.stacked textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.92rem;
  background: #fff;
  color: var(--text);
}
form.stacked textarea { min-height: 5rem; font-family: monospace; }
form.stacked .checkbox { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.75rem; }
form.stacked .checkbox label { margin: 0; }
form.stacked .actions { margin-top: 1.25rem; display: flex; gap: 0.5rem; }
form.stacked .hint { color: var(--muted); font-size: 0.8rem; margin-top: 0.2rem; }

.error-box { background: #fbe6e6; border: 1px solid #f2b8b8; color: var(--danger); padding: 0.6rem 0.9rem; border-radius: 8px; margin-bottom: 1rem; }
.ok-box { background: #e3f8ec; border: 1px solid #b6e6cb; color: var(--ok); padding: 0.6rem 0.9rem; border-radius: 8px; margin-bottom: 1rem; }

.type-fields { border: 1px dashed var(--border); border-radius: 8px; padding: 0.75rem; margin-top: 0.75rem; }

.hour-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 0.5rem; }
.hour-cell { border: 1px solid var(--border); border-radius: 8px; padding: 0.5rem; text-align: center; background: #fff; }
.hour-cell .hh { font-weight: 700; font-size: 1.1rem; }
.hour-cell.empty { color: var(--muted); background: #fafafa; }
.hour-cell audio { width: 100%; margin-top: 0.35rem; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { width: 320px; }

.station-card { display: flex; justify-content: space-between; align-items: center; padding: 0.9rem 0; border-bottom: 1px solid var(--border); }
.station-card:last-child { border-bottom: none; }
.muted { color: var(--muted); font-size: 0.85rem; }