:root {
  --bg: #07151f;
  --bg-soft: rgba(12, 31, 42, 0.84);
  --panel: rgba(10, 26, 37, 0.86);
  --panel-border: rgba(255, 255, 255, 0.08);
  --panel-highlight: rgba(255, 193, 124, 0.22);
  --text: #eef5f2;
  --muted: #97adb0;
  --warm: #ffb86c;
  --warm-strong: #ff8f3c;
  --cool: #5de2d8;
  --cool-strong: #23bdb0;
  --danger: #ff6b6b;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 26px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 184, 108, 0.15), transparent 30%),
    radial-gradient(circle at bottom right, rgba(93, 226, 216, 0.16), transparent 26%),
    linear-gradient(160deg, #030c12 0%, #07151f 46%, #0a2331 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 48%, transparent 100%);
}

.ambient {
  position: fixed;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.22;
  pointer-events: none;
}

.ambient-left {
  top: -10rem;
  left: -8rem;
  background: var(--warm-strong);
}

.ambient-right {
  right: -10rem;
  bottom: -8rem;
  background: var(--cool-strong);
}

.layout {
  position: relative;
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.2rem 0 2.4rem;
}

.hero,
.panel,
.footer {
  animation: rise 0.7s ease both;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.95fr);
  gap: 1.2rem;
  align-items: stretch;
  margin-bottom: 1.2rem;
}

.hero-copy,
.hero-preview,
.panel,
.panel.inset {
  border: 1px solid var(--panel-border);
  border-radius: calc(var(--radius) + 4px);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 2rem;
}

.hero-preview {
  padding: 1.4rem;
  display: grid;
  gap: 1rem;
}

.eyebrow,
.micro-label {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--cool);
  font-size: 0.76rem;
}

.micro-label {
  color: var(--warm);
}

h1,
h2,
h3,
strong {
  font-family: "Baskerville", "Georgia", serif;
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 7vw, 4.8rem);
  line-height: 0.96;
}

h2,
h3 {
  margin: 0;
}

.lead,
.section-copy,
.preview-banner p,
.rule-card p,
.preview-list,
.footer p {
  color: var(--muted);
}

.hero-actions,
.setup-actions,
.action-grid,
.result-grid,
.capture-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-actions {
  margin: 1.6rem 0 1rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.hero-pills span,
.mini-chip,
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.preview-card,
.preview-banner,
.notice-card,
.double-card,
.rule-card,
.setup-summary,
.timer-card,
.player-card,
.cube-results > div {
  padding: 1rem;
  border-radius: 22px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.preview-list {
  margin: 0.8rem 0 0;
  padding-left: 1rem;
}

.preview-list li + li {
  margin-top: 0.45rem;
}

.workspace {
  display: grid;
  gap: 1.2rem;
}

.panel {
  padding: 1.4rem;
}

.panel.inset {
  padding: 1.15rem;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.2rem;
}

.setup-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.span-2 {
  grid-column: 1 / -1;
}

legend,
.field > span {
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.18);
  color: var(--text);
  font: inherit;
}

textarea {
  resize: vertical;
  min-height: 6rem;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(93, 226, 216, 0.35);
  outline-offset: 1px;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.option-grid {
  display: grid;
  gap: 0.85rem;
}

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

.preset-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.option-card {
  position: relative;
  display: grid;
  gap: 0.45rem;
  min-height: 9rem;
  padding: 1rem 1rem 1rem 3rem;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.option-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 184, 108, 0.35);
}

.option-card input {
  position: absolute;
  top: 1.2rem;
  left: 1rem;
  width: 1.1rem;
  height: 1.1rem;
}

.option-card:has(input:checked) {
  background:
    linear-gradient(160deg, rgba(255, 184, 108, 0.18), rgba(93, 226, 216, 0.08));
  border-color: rgba(255, 184, 108, 0.55);
  box-shadow: inset 0 0 0 1px rgba(255, 184, 108, 0.14);
}

.button {
  appearance: none;
  border: 0;
  border-radius: 16px;
  padding: 0.95rem 1.1rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  color: var(--text);
  transition: transform 160ms ease, filter 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
}

.button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.button.primary {
  background: linear-gradient(135deg, var(--warm-strong), var(--warm));
  color: #1d140a;
}

.button.secondary {
  background: linear-gradient(135deg, rgba(93, 226, 216, 0.18), rgba(93, 226, 216, 0.08));
  border: 1px solid rgba(93, 226, 216, 0.25);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.button.capture {
  flex: 1 1 12rem;
  background: linear-gradient(135deg, rgba(255, 184, 108, 0.16), rgba(255, 184, 108, 0.08));
  border: 1px solid rgba(255, 184, 108, 0.25);
}

.button.danger {
  border-color: rgba(255, 107, 107, 0.25);
  color: #ffd7d7;
}

.button.small {
  padding: 0.7rem 0.95rem;
}

.setup-summary {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
}

.live-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.95fr;
  gap: 1rem;
}

.live-grid > .panel.inset:nth-child(4),
.live-grid > .panel.inset:nth-child(5) {
  grid-column: span 1;
}

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

.score-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.timer-grid,
.player-grid,
.cube-results,
.rules-grid {
  display: grid;
  gap: 0.85rem;
}

.timer-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 0.85rem;
}

.timer-card strong,
.cube-clock strong {
  display: block;
  margin: 0.4rem 0;
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 0.95;
}

.timer-card.emphasized {
  background:
    linear-gradient(160deg, rgba(255, 184, 108, 0.22), rgba(255, 255, 255, 0.03));
}

.player-grid,
.cube-results,
.rules-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.player-card {
  position: relative;
  overflow: hidden;
}

.player-card::after {
  content: "";
  position: absolute;
  inset: auto -10% -50% auto;
  width: 9rem;
  height: 9rem;
  border-radius: 50%;
  opacity: 0.18;
}

.white-seat::after {
  background: var(--warm);
}

.black-seat::after {
  background: var(--cool);
}

.player-card.active {
  border-color: var(--panel-highlight);
  box-shadow: 0 0 0 1px rgba(255, 184, 108, 0.2), inset 0 0 0 1px rgba(255, 184, 108, 0.14);
  animation: pulse 1.8s ease-in-out infinite;
}

.player-name-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 0.35rem;
}

.player-color {
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(255, 255, 255, 0.08);
}

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

.notice-card,
.double-card {
  margin-top: 1rem;
  color: var(--muted);
}

.double-card strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--warm);
}

.cube-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.cube-clock {
  padding: 1rem;
  border-radius: 22px;
  background:
    linear-gradient(160deg, rgba(93, 226, 216, 0.18), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(93, 226, 216, 0.18);
  margin-bottom: 1rem;
}

.cube-results {
  margin: 1rem 0;
}

.cube-results strong {
  font-size: 1.35rem;
  display: block;
  margin-top: 0.2rem;
}

.compact {
  margin-top: 0.8rem;
}

.history-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  max-height: 24rem;
  overflow: auto;
}

.history-list li {
  padding: 0.85rem 0.95rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.history-list small {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--cool);
}

.footer {
  margin-top: 1rem;
  padding: 1rem 0 0;
}

.footer a {
  color: var(--warm);
}

.hidden {
  display: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 1px rgba(255, 184, 108, 0.2), inset 0 0 0 1px rgba(255, 184, 108, 0.14);
  }

  50% {
    box-shadow: 0 0 0 1px rgba(255, 184, 108, 0.32), 0 0 32px rgba(255, 184, 108, 0.16);
  }
}

@media (max-width: 960px) {
  .hero,
  .live-grid,
  .mode-grid,
  .preset-grid,
  .player-grid,
  .cube-results,
  .rules-grid,
  .timer-grid {
    grid-template-columns: 1fr;
  }

  .setup-form,
  .live-grid {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .score-head,
  .cube-head {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .layout {
    width: min(100% - 1rem, 100%);
  }

  .hero-copy,
  .hero-preview,
  .panel {
    padding: 1rem;
    border-radius: 22px;
  }

  h1 {
    font-size: 2.65rem;
  }

  .button {
    width: 100%;
    justify-content: center;
  }

  .hero-actions,
  .setup-actions,
  .action-grid,
  .result-grid,
  .capture-grid {
    display: grid;
  }
}