:root {
  --bg: #0b1220;
  --surface: #111a2e;
  --surface-2: #0f1730;
  --text: #eaf0ff;
  --muted: #a8b3cf;
  --primary: #4f8cff;
  --success: #2dd4bf;
  --danger: #fb7185;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 16px 44px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1400px 700px at 20% -20%, rgba(79, 140, 255, 0.22), transparent 60%),
    radial-gradient(1000px 600px at 90% 10%, rgba(45, 212, 191, 0.14), transparent 60%),
    var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 18, 32, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.nav__link {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.nav__link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--border);
}

.nav__link.is-active {
  background: rgba(79, 140, 255, 0.14);
  border-color: rgba(79, 140, 255, 0.28);
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
  align-items: start;
}

.hero__actions {
  box-shadow: var(--shadow);
}

.pagehead {
  margin-top: 6px;
  margin-bottom: 16px;
}

.h1 {
  font-size: 32px;
  line-height: 1.1;
  margin: 0;
}

.h2 {
  font-size: 24px;
  line-height: 1.2;
}

.muted {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.2px;
  text-transform: none;
}

.card {
  background: rgba(17, 26, 46, 0.86);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

.card__title {
  font-size: 16px;
  font-weight: 650;
}

.section {
  margin-top: 18px;
}

.section__title {
  font-size: 18px;
  font-weight: 650;
  margin-bottom: 10px;
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.grid3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.row--space {
  justify-content: space-between;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 48, 0.8);
  color: var(--text);
  outline: none;
}

.input:focus {
  border-color: rgba(79, 140, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(79, 140, 255, 0.14);
}

.btn {
  height: 44px;
  padding: 0 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  transition: transform 120ms ease, background 160ms ease, border-color 160ms ease;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn--primary {
  background: rgba(79, 140, 255, 0.92);
  border-color: rgba(79, 140, 255, 0.6);
}

.btn--primary:hover {
  background: rgba(79, 140, 255, 1);
}

.btn--secondary {
  background: rgba(15, 23, 48, 0.5);
}

.btn--danger {
  background: rgba(251, 113, 133, 0.12);
  border-color: rgba(251, 113, 133, 0.3);
}

.btn--danger:hover {
  background: rgba(251, 113, 133, 0.18);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 14px 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  font-size: 12px;
  color: var(--text);
}

.big-number {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

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

.pill {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 48, 0.7);
  font-weight: 700;
  font-size: 13px;
}

.error {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(251, 113, 133, 0.12);
  border: 1px solid rgba(251, 113, 133, 0.26);
  color: var(--text);
  font-size: 14px;
}

.qrcode {
  width: 240px;
  height: 240px;
  display: grid;
  place-items: center;
  background: white;
  border-radius: 16px;
  overflow: hidden;
}

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

.tab {
  height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 48, 0.6);
  color: var(--text);
  cursor: pointer;
  font-weight: 650;
}

.tab.is-active {
  border-color: rgba(79, 140, 255, 0.5);
  background: rgba(79, 140, 255, 0.12);
}

.bingo-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.cell {
  height: 54px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 48, 0.65);
  display: grid;
  place-items: center;
  font-weight: 800;
  cursor: pointer;
  user-select: none;
  transition: background 160ms ease, border-color 160ms ease, transform 120ms ease;
}

.cell:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.05);
}

.cell.is-marked {
  background: rgba(45, 212, 191, 0.14);
  border-color: rgba(45, 212, 191, 0.38);
}

.cell.is-drawn {
  background: rgba(79, 140, 255, 0.16);
  border-color: rgba(79, 140, 255, 0.5);
}

.cell.is-free {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  font-size: 12px;
  letter-spacing: 1px;
}

.scroll {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px;
  background: rgba(15, 23, 48, 0.55);
  overflow: auto;
}

.footer {
  border-top: 1px solid var(--border);
  margin-top: 28px;
  background: rgba(11, 18, 32, 0.4);
}

.footer__inner {
  padding-top: 16px;
  padding-bottom: 16px;
}

.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 16px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 92px;
  align-self: start;
  height: calc(100vh - 120px);
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(17, 26, 46, 0.86);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar__title {
  font-weight: 800;
  letter-spacing: 0.2px;
  margin-bottom: 2px;
}

.sidebtn {
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 48, 0.55);
  color: var(--text);
  cursor: pointer;
  font-weight: 650;
  text-align: left;
  padding: 0 12px;
  transition: background 160ms ease, border-color 160ms ease;
}

.sidebtn:hover {
  background: rgba(255, 255, 255, 0.05);
}

.sidebtn.is-active {
  border-color: rgba(79, 140, 255, 0.5);
  background: rgba(79, 140, 255, 0.12);
}

.admin-content {
  display: grid;
  gap: 16px;
}

@media (max-width: 1024px) {
  .container {
    padding: 18px;
  }
  .hero {
    grid-template-columns: 1fr;
  }
  .grid2 {
    grid-template-columns: 1fr;
  }
  .grid3 {
    grid-template-columns: 1fr;
  }
  .admin-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: relative;
    top: auto;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .sidebtn {
    flex: 1;
    min-width: 140px;
  }
}