:root {
  --color-primary: #e8590c;
  --color-primary-dark: #c94a09;
  --color-dark: #1a1a2e;
  --color-text: #222;
  --color-muted: #666;
  --color-border: #e0e0e0;
  --color-bg: #f7f7f9;
  --color-success: #2b8a3e;
  --color-error: #c92a2a;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  background: var(--color-dark);
  color: #fff;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  gap: 8px;
}

.brand {
  color: #fff;
  font-weight: bold;
  text-decoration: none;
  font-size: 1.1rem;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.main-nav a, .main-nav .link-button {
  color: #fff;
  text-decoration: none;
  font-size: 0.9rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 0;
}

.main-nav a:hover, .main-nav .link-button:hover {
  color: var(--color-primary);
}

.inline-form { display: inline; }

main.container {
  padding-top: 24px;
  padding-bottom: 48px;
  min-height: 60vh;
}

.site-footer {
  padding: 24px 0;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.alert-success { background: #ebfbee; color: var(--color-success); border: 1px solid #b2f2bb; }
.alert-error { background: #fff5f5; color: var(--color-error); border: 1px solid #ffc9c9; }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.2rem; }

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
}

.form-hint {
  color: var(--color-muted);
  font-size: 0.8rem;
  margin-top: 4px;
}

.btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: var(--color-primary-dark); }

.btn-secondary {
  background: #fff;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover { background: #f1f1f1; }

.btn-danger { background: var(--color-error); }

.list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  gap: 12px;
  flex-wrap: wrap;
}

.list-item:last-child { border-bottom: none; }

.tag-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-checkbox {
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 0.9rem;
  background: #fff;
}

.tag-checkbox input { margin-right: 6px; }

.step-block {
  margin-bottom: 28px;
}

.step-block h3 {
  border-left: 4px solid var(--color-primary);
  padding-left: 10px;
}

.video-card {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.video-card .video-embed {
  flex: 0 0 240px;
  max-width: 100%;
}

.video-card .video-embed iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  border-radius: 4px;
}

.video-card .video-info { flex: 1; min-width: 200px; }

.badge {
  display: inline-block;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-right: 4px;
}

table.simple-table {
  width: 100%;
  border-collapse: collapse;
}

table.simple-table th, table.simple-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .video-card { flex-direction: column; }
  .video-card .video-embed { flex-basis: auto; }
}