* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", Arial, sans-serif;
  background: linear-gradient(180deg, #f4f7ff 0%, #eef3ff 40%, #f8fafc 100%);
  color: #111827;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(8px);
  background: rgba(15, 23, 42, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.topbar-inner {
  max-width: 1040px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.brand {
  color: #f8fafc;
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.24);
}

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

.menu button {
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 8px 12px;
  width: auto;
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: transparent;
  color: #e5e7eb;
}

.menu button:hover {
  background: rgba(255, 255, 255, 0.16);
  filter: none;
}

.menu button.active {
  background: rgba(37, 99, 235, 0.45);
  border-color: rgba(147, 197, 253, 0.9);
}

.menu button.hidden {
  display: none;
}

.container {
  max-width: 1040px;
  margin: 20px auto 40px;
  padding: 0 16px;
}

.hero {
  margin: 4px 0 14px;
}

.hero h1 {
  margin: 0;
  font-size: 32px;
}

.hero p {
  margin: 8px 0 0;
}

.card {
  background: #ffffff;
  border: 1px solid #dbe3f4;
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.08);
}

.panel {
  border-top: 1px solid #e6ebf5;
  margin-top: 14px;
  padding-top: 14px;
}

.row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

label {
  display: block;
  margin-top: 10px;
  margin-bottom: 6px;
  font-weight: 600;
  color: #0f172a;
}

input,
select,
button {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid #c9d5ef;
  border-radius: 10px;
  font-size: 14px;
  background: #fff;
}

.event-day-locked {
  padding: 11px 12px;
  border: 1px solid #c9d5ef;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  background: #eef2ff;
  color: #1e3a8a;
}

input:focus,
select:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}

button {
  margin-top: 10px;
  cursor: pointer;
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
  color: #fff;
  border: 0;
  font-weight: 700;
}

button.secondary {
  width: auto;
  margin-top: 0;
  background: #334155;
  padding-left: 14px;
  padding-right: 14px;
}

button:hover {
  filter: brightness(1.04);
}

button:disabled {
  background: #9ca3af;
  cursor: not-allowed;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

li {
  border: 1px solid #e7edf8;
  border-radius: 10px;
  padding: 10px;
  margin-bottom: 8px;
  background: #fbfdff;
}

.muted {
  color: #475569;
}

.status {
  margin-top: 12px;
  border-radius: 10px;
  padding: 12px;
  font-weight: 600;
}

.status.ok {
  background: #ecfdf3;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.status.warn {
  background: #fff7ed;
  color: #9a3412;
  border: 1px solid #fed7aa;
}

.status.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.hidden {
  display: none;
}

.screen {
  margin-top: 12px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.summary-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 24px 12px;
  border-radius: 14px;
  background: #f7faff;
  border: 1px solid #d8e1f2;
  text-align: center;
}

.summary-card-ok {
  background: #ecfdf3;
  border-color: #a7f3d0;
}

.summary-card-warn {
  background: #fff7ed;
  border-color: #fed7aa;
}

.summary-number {
  font-size: 42px;
  font-weight: 800;
  color: #0f172a;
  line-height: 1;
}

.summary-label {
  font-size: 13px;
  font-weight: 600;
  color: #475569;
}

@media (max-width: 760px) {
  .hero h1 {
    font-size: 26px;
  }

  .topbar-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}