:root {
  --bg: #071320;
  --bg-deep: #0a1c2e;
  --bg-shelf: #0d2942;
  --panel: rgba(10, 25, 43, 0.82);
  --panel-strong: rgba(11, 30, 52, 0.94);
  --panel-soft: rgba(18, 42, 68, 0.72);
  --ink: #edf7ff;
  --muted: #9eb9d1;
  --line: rgba(129, 176, 216, 0.18);
  --accent: #67b8ff;
  --accent-strong: #9ad7ff;
  --accent-soft: rgba(63, 118, 176, 0.2);
  --accent-warm: #c5e9ff;
  --danger: #ff8d8d;
  --shadow: 0 26px 70px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 14px 36px rgba(2, 10, 20, 0.32);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(78, 145, 212, 0.22), transparent 28%),
    radial-gradient(circle at top right, rgba(35, 98, 160, 0.18), transparent 24%),
    radial-gradient(circle at 50% 120%, rgba(103, 184, 255, 0.14), transparent 34%),
    linear-gradient(180deg, var(--bg), var(--bg-deep) 56%, #06111b 100%);
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background-image:
    linear-gradient(rgba(155, 206, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 206, 255, 0.04) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.56), transparent 90%);
}

body::after {
  background:
    radial-gradient(circle at 20% 12%, rgba(255, 255, 255, 0.16) 0 1px, transparent 1px),
    radial-gradient(circle at 72% 18%, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px),
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px);
}

a {
  color: var(--accent-strong);
}

.page-shell,
.manage-shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-shell {
  padding: 30px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.75fr);
  gap: 20px;
  align-items: stretch;
  margin-bottom: 20px;
}

.hero h1,
.manage-shell h1,
.login-box h2,
.panel h2,
.option-card h3 {
  font-family: 'Fraunces', serif;
  letter-spacing: -0.03em;
  margin: 0;
}

.hero h1 {
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  line-height: 0.92;
  margin-bottom: 12px;
  text-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--accent-strong);
  margin: 0 0 12px;
  font-weight: 600;
}

.subtitle,
.panel-copy,
.option-copy,
.note,
.hero-share,
.player-meta {
  color: var(--muted);
}

.hero-card,
.panel,
.login-box,
.option-card {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.hero-card,
.panel,
.login-box {
  border-radius: 28px;
}

.hero-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(145deg, rgba(103, 184, 255, 0.18), rgba(18, 76, 127, 0.12)),
    var(--panel-strong);
}

.hero-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 10px;
}

.hero-code {
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  margin-bottom: 10px;
}

.hero-share {
  max-width: 28ch;
  line-height: 1.5;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.74fr);
  gap: 20px;
  align-items: start;
}

.sidebar {
  display: grid;
  gap: 20px;
}

.panel {
  padding: 22px;
}

.panel-header {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 16px;
}

.panel-header.compact {
  margin-bottom: 14px;
}

.panel-actions,
.manage-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.board-loading {
  align-items: stretch;
}

.loading-card {
  min-height: 116px;
  border-radius: 22px;
  border: 1px solid rgba(109, 170, 221, 0.12);
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.02) 8%, rgba(116, 185, 255, 0.14) 18%, rgba(255, 255, 255, 0.02) 33%),
    linear-gradient(180deg, rgba(15, 38, 61, 0.98), rgba(10, 24, 41, 0.92));
  background-size: 220% 100%, 100% 100%;
  animation: shimmer 1.35s linear infinite;
}

.empty-state {
  display: block;
}

.empty-card {
  border: 1px dashed var(--line);
  border-radius: 22px;
  background: rgba(8, 23, 38, 0.72);
  padding: 24px;
  color: var(--muted);
}

.cell {
  position: relative;
  min-height: 118px;
  border: 1px solid rgba(103, 184, 255, 0.14);
  border-radius: 22px;
  padding: 18px 16px 28px;
  background:
    linear-gradient(180deg, rgba(20, 46, 72, 0.94), rgba(10, 26, 43, 0.94));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 10px 24px rgba(4, 12, 24, 0.24);
  color: var(--ink);
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease, opacity 140ms ease;
  overflow: hidden;
}

.cell:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 16px 32px rgba(3, 11, 22, 0.3);
  border-color: rgba(103, 184, 255, 0.32);
}

.cell:focus-visible {
  outline: 3px solid rgba(103, 184, 255, 0.35);
  outline-offset: 2px;
}

.cell.pending {
  opacity: 0.8;
  transform: scale(0.985);
}

.cell.pending::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 18%, rgba(255, 255, 255, 0.14) 30%, transparent 42%);
  animation: sweep 1s linear infinite;
  z-index: 0;
}

.cell-label {
  position: relative;
  z-index: 1;
  display: block;
  font-size: 0.95rem;
  line-height: 1.35;
  font-weight: 500;
}

.cell.claimed {
  color: #f7fcff;
}

.cell.claimed::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, color-mix(in srgb, var(--claimed-colour) 22%, rgba(13, 30, 50, 0.94)), color-mix(in srgb, var(--claimed-colour) 38%, rgba(6, 16, 28, 0.96)));
  opacity: 0.84;
}

.colour-bar {
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 12px;
  height: 10px;
  display: flex;
  overflow: hidden;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  z-index: 1;
}

.colour-bar div + div {
  border-left: 1px solid rgba(255, 255, 255, 0.3);
}

.star-marker,
.counter-marker {
  position: absolute;
  z-index: 2;
  font-weight: 700;
  color: var(--accent-warm);
}

.star-marker {
  top: 10px;
  right: 12px;
  font-size: 1rem;
}

.counter-marker {
  top: 10px;
  left: 12px;
  font-size: 0.75rem;
}

.scoreboard {
  display: grid;
  gap: 10px;
}

.player-entry {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(145, 188, 223, 0.12);
}

.player-entry:last-child {
  border-bottom: 0;
}

.colour-box {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.38);
}

.player-name {
  font-weight: 600;
}

.player-meta {
  font-size: 0.82rem;
}

.player-crowns {
  font-size: 0.92rem;
  color: var(--accent-strong);
  white-space: nowrap;
}

.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 8, 16, 0.66);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  backdrop-filter: blur(14px);
  z-index: 20;
}

.login-overlay.is-busy .login-box {
  border-color: rgba(103, 184, 255, 0.3);
  box-shadow: 0 22px 56px rgba(2, 10, 20, 0.38);
}

.login-box {
  position: relative;
  width: min(900px, 100%);
  padding: 24px;
  max-height: calc(100vh - 48px);
  overflow: auto;
  background:
    radial-gradient(circle at top right, rgba(103, 184, 255, 0.14), transparent 26%),
    linear-gradient(180deg, rgba(13, 33, 56, 0.98), rgba(8, 21, 35, 0.96));
}

.login-intro {
  margin-bottom: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.field,
.option-card,
.segmented-control {
  margin-bottom: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span,
.field-label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--muted);
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(149, 195, 228, 0.14);
  border-radius: 16px;
  background: rgba(7, 22, 36, 0.76);
  padding: 13px 15px;
  color: var(--ink);
}

input::placeholder,
textarea::placeholder {
  color: rgba(158, 185, 209, 0.58);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(103, 184, 255, 0.46);
  box-shadow: 0 0 0 4px rgba(103, 184, 255, 0.12);
}

textarea {
  resize: vertical;
  min-height: 160px;
}

.segmented-control {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 6px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(149, 195, 228, 0.12);
}

.segmented-control label {
  position: relative;
  cursor: pointer;
}

.segmented-control input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented-control span {
  display: block;
  text-align: center;
  padding: 12px 10px;
  border-radius: 14px;
  font-weight: 600;
}

.segmented-control input:checked + span {
  background: linear-gradient(135deg, rgba(86, 162, 232, 0.28), rgba(50, 102, 162, 0.3));
  color: var(--ink);
}

.host-config {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.option-card {
  padding: 16px;
  border-radius: 22px;
  background: var(--panel-soft);
}

.option-card.wide {
  grid-column: 1 / -1;
}

.option-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.radio-stack {
  display: grid;
  gap: 10px;
}

.radio-option {
  display: flex;
  gap: 10px;
  align-items: start;
  color: var(--ink);
}

.radio-option input {
  width: auto;
  margin-top: 3px;
  accent-color: var(--accent);
}

.colour-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.colour-option {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  border: 2px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.colour-option.selected {
  outline: 3px solid rgba(103, 184, 255, 0.28);
  border-color: rgba(103, 184, 255, 0.78);
}

.primary-button,
.ghost-button,
.link-button {
  border-radius: 999px;
  padding: 11px 18px;
  cursor: pointer;
  border: 0;
  transition: transform 150ms ease, box-shadow 150ms ease, background-color 150ms ease, border-color 150ms ease;
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), #3f7cb7);
  color: #041220;
  box-shadow: var(--shadow-soft);
  font-weight: 700;
}

.primary-button:hover,
.ghost-button:hover,
.link-button:hover {
  transform: translateY(-1px);
}

.primary-button:disabled,
.ghost-button:disabled,
.link-button:disabled {
  opacity: 0.55;
  cursor: wait;
  transform: none;
}

.ghost-button,
.link-button {
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  border: 1px solid rgba(149, 195, 228, 0.12);
}

.link-button {
  padding: 8px 12px;
}

.link-like {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.error-message {
  min-height: 1.2rem;
  color: var(--danger);
}

.hidden {
  display: none !important;
}

.manage-body {
  padding: 32px 0;
}

.manage-shell {
  padding: 24px;
}

@keyframes shimmer {
  0% {
    background-position: 220% 0, 0 0;
  }
  100% {
    background-position: -20% 0, 0 0;
  }
}

@keyframes sweep {
  0% {
    transform: translateX(-130%);
  }
  100% {
    transform: translateX(130%);
  }
}

@media (max-width: 1040px) {
  .hero,
  .layout,
  .host-config {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell,
  .manage-shell {
    width: min(100% - 20px, 1240px);
  }

  .page-shell {
    padding-top: 22px;
  }

  .form-grid,
  .segmented-control {
    grid-template-columns: 1fr;
  }

  .panel-header,
  .option-head {
    flex-direction: column;
  }

  .board-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cell,
  .loading-card {
    min-height: 104px;
  }
}

@media (max-width: 520px) {
  .board-grid {
    grid-template-columns: 1fr;
  }

  .login-box,
  .panel,
  .hero-card {
    border-radius: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}