:root {
  --bg: #0f1220;
  --panel: #191d31;
  --panel-2: #222741;
  --text: #e8eaf3;
  --muted: #9aa0be;
  --brand: #6c8bff;
  --brand-2: #8a6cff;
  --ok: #38c793;
  --warn: #f0b429;
  --danger: #f26d6d;
  --border: #2b3150;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

/* The `hidden` attribute must win over explicit `display` rules below
   (e.g. .modal { display:flex }), otherwise hidden elements stay visible. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 80% -10%, #1c2140 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
}

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(15, 18, 32, 0.7);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand { font-size: 1.25rem; margin: 0; }
nav { display: flex; gap: 8px; }

.intro { margin: 32px 0 20px; }
.intro h2 { margin: 0 0 6px; font-size: 1.6rem; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.footer { margin: 48px 0 32px; text-align: center; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font: inherit;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 9px 16px;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  transition: transform 0.05s ease, background 0.15s ease, border-color 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; border-color: var(--border); }
.btn-ghost:hover { background: var(--panel-2); }
.btn-danger { background: transparent; border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: rgba(242, 109, 109, 0.12); }
.btn-sm { padding: 6px 11px; font-size: 0.85rem; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Event grid (public) */
.event-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
  margin-bottom: 40px;
}
.event-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow);
}
.event-card h3 { margin: 0; font-size: 1.15rem; }
.event-meta { display: flex; flex-direction: column; gap: 4px; font-size: 0.9rem; color: var(--muted); }
.event-desc { font-size: 0.92rem; color: var(--text); opacity: 0.9; flex: 1; }
.event-card .card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 6px; }

.badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
}
.badge-ok { color: var(--ok); border-color: rgba(56, 199, 147, 0.4); background: rgba(56, 199, 147, 0.1); }
.badge-warn { color: var(--warn); border-color: rgba(240, 180, 41, 0.4); background: rgba(240, 180, 41, 0.1); }
.badge-full { color: var(--danger); border-color: rgba(242, 109, 109, 0.4); background: rgba(242, 109, 109, 0.1); }

/* Panels / forms */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.login-panel { max-width: 380px; margin: 48px auto; }
form { display: flex; flex-direction: column; gap: 14px; margin-top: 8px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 0.9rem; font-weight: 600; }
input, textarea {
  font: inherit;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  width: 100%;
}
input:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; }
textarea { resize: vertical; }

.form-error { color: var(--danger); font-size: 0.88rem; font-weight: 600; }
.success-box { text-align: center; padding: 10px 0; }

/* Status banner */
.status { padding: 12px 16px; border-radius: 10px; margin: 12px 0; font-weight: 600; }
.status-error { background: rgba(242, 109, 109, 0.12); color: var(--danger); border: 1px solid rgba(242, 109, 109, 0.3); }
.status-info { background: rgba(108, 139, 255, 0.12); color: var(--brand); border: 1px solid rgba(108, 139, 255, 0.3); }

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(6, 8, 16, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 50;
}
.modal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  width: 100%;
  max-width: 440px;
  position: relative;
  box-shadow: var(--shadow);
  max-height: 90vh;
  overflow-y: auto;
}
.modal-wide { max-width: 640px; }
.modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}
.modal-close:hover { color: var(--text); }

/* Admin list */
.dash-head { display: flex; align-items: center; justify-content: space-between; margin: 28px 0 18px; }
.admin-list { display: flex; flex-direction: column; gap: 12px; }
.admin-row {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.admin-row .info h3 { margin: 0 0 4px; font-size: 1.05rem; }
.admin-row .info .sub { font-size: 0.86rem; color: var(--muted); }
.admin-row .actions { display: flex; gap: 8px; flex-wrap: wrap; }

/* Attendee table */
table { width: 100%; border-collapse: collapse; margin-top: 8px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { color: var(--muted); font-weight: 600; }
.empty { color: var(--muted); padding: 16px 0; text-align: center; }

@media (max-width: 520px) {
  .site-header .wrap { flex-direction: column; gap: 10px; align-items: flex-start; }
}