/* Shared CosmoSeed Navbar — used by event pages (index/courses/coming-soon) */
:root {
  --cs-pink: #EC4899;
  --cs-pink-h: #DB2777;
  --cs-pink-dim: rgba(236,72,153,0.12);
  --cs-text: #f1f5f9;
  --cs-dim: #64748b;
  --cs-border: rgba(255,255,255,0.08);
}
.cs-nav {
  position: sticky; top: 0; z-index: 200;
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--cs-border);
  font-family: 'Noto Sans TC', sans-serif;
}
.cs-nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; gap: 14px;
  height: 60px; padding: 0 24px;
}
.cs-logo {
  font-size: 15px; font-weight: 900; white-space: nowrap; flex-shrink: 0;
  letter-spacing: -0.02em; display: flex; align-items: center; gap: 7px;
  color: var(--cs-text); text-decoration: none;
}
.cs-logo em { color: var(--cs-pink); font-style: normal; }
.cs-logo-icon {
  width: 28px; height: 28px; background: var(--cs-pink); border-radius: 7px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.cs-nav-menu { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.cs-nav-menu a {
  padding: 7px 12px; font-size: 14px; font-weight: 500;
  color: var(--cs-text); border-radius: 8px; text-decoration: none;
  transition: background .15s, color .15s; white-space: nowrap;
}
.cs-nav-menu a:hover { background: rgba(255,255,255,0.06); color: #fff; }
.cs-nav-menu a.active { color: var(--cs-pink); background: var(--cs-pink-dim); }
@media (max-width: 900px) { .cs-nav-menu { display: none; } }
.cs-search-group {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px; margin: 0;
}
.cs-search-wrap { position: relative; width: 100%; max-width: 300px; }
.cs-search-wrap input {
  width: 100%; background: rgba(255,255,255,0.04); border: 1px solid var(--cs-border);
  border-radius: 8px; padding: 8px 14px 8px 38px;
  color: var(--cs-text); font-size: 14px; outline: none;
  transition: border-color .2s; font-family: inherit;
}
.cs-search-wrap input:focus { border-color: var(--cs-pink); }
.cs-search-wrap input::placeholder { color: var(--cs-dim); }
.cs-search-icon {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--cs-dim); font-size: 13px; pointer-events: none;
}
.cs-nav-cta {
  background: var(--cs-pink); color: #fff; padding: 8px 16px;
  border-radius: 8px; font-size: 13px; font-weight: 700;
  white-space: nowrap; flex-shrink: 0; border: none; cursor: pointer;
  transition: background .2s, transform .15s; font-family: inherit;
}
.cs-nav-cta:hover { background: var(--cs-pink-h); transform: translateY(-1px); }
.cs-nav-link-courses {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, #a855f7 0%, #7c3aed 100%);
  color: #fff; padding: 8px 14px;
  border-radius: 8px; font-size: 13px; font-weight: 700;
  white-space: nowrap; flex-shrink: 0; text-decoration: none;
  transition: transform .15s, box-shadow .2s;
  box-shadow: 0 4px 14px -4px rgba(168, 85, 247, 0.5);
}
.cs-nav-link-courses:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px -4px rgba(168, 85, 247, 0.7);
}
@media (max-width: 640px) {
  .cs-nav-link-courses .cs-nav-link-txt { display: none; }
  .cs-nav-link-courses { padding: 8px 10px; }
}