:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --panel: #ffffff;
  --text: #1f2430;
  --muted: #62708a;
  --accent: #2a6df4;
  --accent-soft: #e9f0ff;
  --border: #dde3ef;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.site-header {
  background: #0f172a;
  border-bottom: 1px solid #101b33;
  margin-bottom: 1.25rem;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-block;
  color: #f8fafc;
  text-decoration: none;
  font-weight: 700;
  padding: 1rem 0;
}

.logout-link {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.9rem;
}

.logout-link:hover {
  color: #fff;
}

.page-head h1 {
  margin: 0.3rem 0 0.2rem;
}

.muted {
  color: var(--muted);
}

.back-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.9rem;
  padding-bottom: 1.5rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.9rem;
  text-decoration: none;
  color: inherit;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.08);
}

.event-id {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.82rem;
}

.event-date {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.84rem;
}

.event-name {
  margin-top: 0.6rem;
  font-weight: 600;
  line-height: 1.35;
}

.event-link {
  margin-top: 0.65rem;
  color: var(--accent);
  font-size: 0.88rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
  padding-bottom: 1.2rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

.panel-wide {
  grid-column: 1 / -1;
}

.panel h2 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.details-list {
  margin: 0;
  padding-left: 1rem;
}

.details-list li {
  margin-bottom: 0.35rem;
}

.table-wrap {
  overflow-x: auto;
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 680px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 0.6rem;
  font-size: 0.92rem;
}

th {
  background: #f8fafc;
}

.error {
  color: #b91c1c;
}

.login-wrap {
  min-height: calc(100vh - 140px);
  display: grid;
  place-items: center;
}

.login-card {
  width: min(420px, 92vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem;
}

.login-card h1 {
  margin: 0 0 0.35rem;
}

.login-form {
  display: grid;
  gap: 0.55rem;
}

.login-form input {
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 0.7rem;
  font-size: 0.95rem;
}

.login-form button {
  margin-top: 0.35rem;
  height: 40px;
  border: 1px solid #1d4ed8;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.login-form button:hover {
  background: #1d4ed8;
}

.api-url {
  margin-top: 0.2rem;
  font-size: 0.78rem;
  color: var(--muted);
  word-break: break-all;
}

.overlay-btn,
.overlay-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #1f2937;
  color: #f9fafb;
  border: 1px solid #374151;
  border-radius: 8px;
  padding: 0.36rem 0.62rem;
  cursor: pointer;
  font-size: 0.87rem;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.overlay-btn:hover,
.overlay-toggle-btn:hover {
  background: #273447;
  border-color: #4b5563;
}

.overlay-btn:active,
.overlay-toggle-btn:active {
  transform: translateY(1px);
}

.overlay-toggle-active {
  background: #dc2626 !important;
  color: #fff !important;
  border-color: #b91c1c !important;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }
}