:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #172033;
  background: #f5f7fb;
  line-height: 1.6;
}

* {
  box-sizing: border-box;
}

body {
  --state-accent: #2457c5;
  --state-accent-strong: #173d91;
  --state-soft: #e5ecfb;
  --state-glow: rgba(36, 87, 197, 0.2);
  --state-wash: rgba(219, 231, 255, 0.78);
  margin: 0;
  min-height: 100vh;
  padding: 2rem;
  background:
    radial-gradient(circle at 12% 8%, var(--state-wash), transparent 30rem),
    radial-gradient(circle at 92% 18%, var(--state-glow), transparent 24rem),
    #f5f7fb;
  transition: background 700ms ease;
}

body[data-game-state="ideation"] {
  --state-accent: #7047c7;
  --state-accent-strong: #4d2b97;
  --state-soft: #eee8fb;
  --state-glow: rgba(112, 71, 199, 0.22);
  --state-wash: rgba(234, 224, 255, 0.8);
}

body[data-game-state="voting"] {
  --state-accent: #a65a0a;
  --state-accent-strong: #743b00;
  --state-soft: #fff0d8;
  --state-glow: rgba(202, 116, 25, 0.22);
  --state-wash: rgba(255, 235, 198, 0.82);
}

body[data-game-state="results"] {
  --state-accent: #16805e;
  --state-accent-strong: #0c5941;
  --state-soft: #daf4ea;
  --state-glow: rgba(22, 128, 94, 0.22);
  --state-wash: rgba(210, 244, 233, 0.82);
}

main {
  width: min(48rem, 100%);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid #dfe5ef;
  border-radius: 1rem;
  box-shadow: 0 1rem 3rem rgba(23, 32, 51, 0.08);
  transition: border-color 500ms ease, box-shadow 650ms ease, transform 500ms ease;
}

main.wide {
  width: min(72rem, 100%);
}

.game-detail {
  border-color: color-mix(in srgb, var(--state-accent) 18%, #dfe5ef);
  box-shadow:
    0 1rem 3rem rgba(23, 32, 51, 0.08),
    0 0 0 1px var(--state-glow),
    0 1.5rem 4rem var(--state-glow);
}

h1,
h2,
h3 {
  line-height: 1.15;
}

h1 {
  margin: 0 0 1rem;
}

section + section {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid #dfe5ef;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.game-detail > .eyebrow,
.phase-section .eyebrow {
  color: var(--state-accent-strong);
  transition: color 450ms ease;
}

nav,
.actions,
.heading-row,
.game-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
}

nav {
  margin: 1.5rem 0;
}

.heading-row {
  justify-content: space-between;
  align-items: flex-start;
}

.game-heading {
  gap: 1.5rem;
}

.game-status {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.7rem;
  align-items: baseline;
  min-height: 2rem;
  margin: 0;
  color: #596579;
}

.status-phase {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: var(--state-soft);
  color: var(--state-accent-strong);
  transition: background 450ms ease, color 450ms ease, transform 450ms ease;
}

.game-picker {
  align-items: end;
}

.game-picker label {
  flex-basis: 100%;
  font-weight: 700;
}

select,
button,
.button {
  min-height: 2.75rem;
  border-radius: 0.6rem;
  font: inherit;
}

select {
  min-width: min(20rem, 100%);
  padding: 0.55rem 0.75rem;
  border: 1px solid #bac5d6;
  background: white;
  color: inherit;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #172033;
  padding: 0.7rem 1rem;
  background: #172033;
  color: white;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 300ms ease, color 300ms ease;
}

button:hover,
.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 0.45rem 1rem rgba(23, 32, 51, 0.13);
}

button.secondary,
.secondary-link {
  background: white;
  color: #172033;
}

button:disabled,
select:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.status-line {
  padding: 0.75rem 0;
  font-weight: 700;
}

a {
  color: #2457c5;
  text-underline-offset: 0.2em;
}

a:focus-visible,
button:focus-visible,
select:focus-visible {
  outline: 3px solid var(--state-accent);
  outline-offset: 3px;
}

.note {
  margin-bottom: 0;
  color: #596579;
  font-size: 0.95rem;
}

.section-heading h2 {
  margin: 0.15rem 0 0.5rem;
}

.section-heading p:last-child {
  margin-bottom: 0;
}

.phase-section {
  position: relative;
  overflow: hidden;
}

.phase-section::after {
  position: absolute;
  z-index: 0;
  width: 16rem;
  height: 16rem;
  right: -8rem;
  top: -7rem;
  border-radius: 50%;
  background: var(--state-glow);
  content: "";
  filter: blur(1rem);
  opacity: 0.55;
  pointer-events: none;
  transition: background 500ms ease;
}

.phase-journey {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0 0;
}

.phase-journey::before {
  position: absolute;
  top: 1.5rem;
  left: 8%;
  right: 8%;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--state-soft), var(--state-accent), var(--state-soft));
  content: "";
  opacity: 0.6;
  transition: background 500ms ease;
}

.phase-step {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  align-items: center;
  min-width: 0;
  padding: 0.75rem;
  border: 1px solid #dfe5ef;
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.94);
  color: #596579;
  text-decoration: none;
  box-shadow: 0 0.35rem 1rem rgba(23, 32, 51, 0.05);
  transition:
    transform 350ms cubic-bezier(0.2, 0.8, 0.2, 1),
    border-color 350ms ease,
    background 450ms ease,
    color 350ms ease,
    box-shadow 450ms ease;
}

.phase-step:hover {
  transform: translateY(-3px);
  border-color: var(--state-accent);
}

.phase-marker {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 2px solid #bac5d6;
  border-radius: 50%;
  background: white;
  color: #596579;
  font-size: 0.8rem;
  font-weight: 800;
  transition: all 450ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.phase-copy {
  display: grid;
  min-width: 0;
  line-height: 1.2;
}

.phase-copy strong {
  color: #172033;
  transition: color 350ms ease;
}

.phase-copy small {
  margin-top: 0.15rem;
  color: #6a7689;
}

.phase-step.complete {
  border-color: color-mix(in srgb, var(--state-accent) 30%, #dfe5ef);
  background: color-mix(in srgb, var(--state-soft) 48%, white);
}

.phase-step.complete .phase-marker {
  border-color: var(--state-accent);
  background: var(--state-soft);
  color: var(--state-accent-strong);
}

.phase-step.current {
  transform: translateY(-4px) scale(1.02);
  border-color: var(--state-accent);
  background: var(--state-accent);
  color: white;
  box-shadow: 0 0.8rem 1.8rem var(--state-glow);
  animation: phase-arrive 650ms cubic-bezier(0.2, 0.9, 0.25, 1.2) both;
}

.phase-step.current .phase-marker {
  border-color: white;
  background: white;
  color: var(--state-accent-strong);
  box-shadow: 0 0 0 0.35rem rgba(255, 255, 255, 0.18);
}

.phase-step.current .phase-copy strong,
.phase-step.current .phase-copy small {
  color: white;
}

.player-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(16rem, 100%), 1fr));
  gap: 1rem;
  perspective: 60rem;
}

.player-card {
  padding: 1rem;
  border: 1px solid #dfe5ef;
  border-radius: 0.75rem;
  background: #fafbfe;
  box-shadow: 0 0.4rem 1rem rgba(23, 32, 51, 0.04);
  transition: transform 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.player-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--state-accent) 35%, #dfe5ef);
  box-shadow: 0 0.7rem 1.6rem rgba(23, 32, 51, 0.09);
}

.player-card-enter {
  animation: card-enter 520ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: calc(var(--card-index, 0) * 70ms);
}

.player-card h3 {
  margin-top: 0;
}

.player-card img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 28rem;
  object-fit: contain;
  border-radius: 0.5rem;
  background: #eef2f8;
}

.phase-change {
  animation: state-shell-change 850ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.phase-grid-change .player-card {
  animation: card-phase-shift 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
  animation-delay: calc(var(--card-index, 0) * 55ms);
}

.state-burst {
  position: fixed;
  inset: 0;
  z-index: 100;
  overflow: hidden;
  pointer-events: none;
}

.state-burst span {
  --burst-angle: calc(var(--particle-index) * 20deg);
  position: absolute;
  top: 22%;
  left: 50%;
  width: 0.55rem;
  height: 0.9rem;
  border-radius: 0.15rem;
  background: #16805e;
  opacity: 0;
  animation: result-burst 1500ms cubic-bezier(0.15, 0.7, 0.2, 1) forwards;
  animation-delay: calc((var(--particle-index) % 4) * 35ms);
}

.state-burst span:nth-child(3n + 1) {
  background: #f2b134;
}

.state-burst span:nth-child(3n + 2) {
  background: #7047c7;
}

code {
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
  background: #eef2f8;
  font-size: 0.95em;
}

::view-transition-old(root) {
  animation-duration: 220ms;
  animation-timing-function: ease-in;
}

::view-transition-new(root) {
  animation-duration: 480ms;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
}

@keyframes phase-arrive {
  0% {
    transform: translateY(0) scale(0.96);
    opacity: 0.7;
  }
  60% {
    transform: translateY(-6px) scale(1.035);
  }
  100% {
    transform: translateY(-4px) scale(1.02);
    opacity: 1;
  }
}

@keyframes state-shell-change {
  0% {
    transform: scale(0.995);
    box-shadow: 0 1rem 3rem rgba(23, 32, 51, 0.08);
  }
  45% {
    transform: scale(1.004);
    box-shadow:
      0 1rem 3rem rgba(23, 32, 51, 0.08),
      0 0 0 0.45rem var(--state-glow),
      0 2rem 5rem var(--state-glow);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes card-enter {
  from {
    opacity: 0;
    transform: translateY(0.8rem) rotateX(3deg) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes card-phase-shift {
  0% {
    transform: translateY(0);
  }
  45% {
    transform: translateY(-0.35rem);
    border-color: var(--state-accent);
    box-shadow: 0 0.8rem 1.8rem var(--state-glow);
  }
  100% {
    transform: translateY(0);
  }
}

@keyframes result-burst {
  0% {
    opacity: 0;
    transform: rotate(var(--burst-angle)) translateY(0) rotate(0deg) scale(0.3);
  }
  12% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: rotate(var(--burst-angle)) translateY(42vh) rotate(540deg) scale(1);
  }
}

@media (max-width: 52rem) {
  .phase-journey {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .phase-journey::before {
    display: none;
  }
}

@media (max-width: 40rem) {
  body {
    padding: 0;
  }

  main,
  main.wide {
    min-height: 100vh;
    border: 0;
    border-radius: 0;
  }

  .phase-journey {
    grid-template-columns: 1fr;
  }

  .phase-step.current {
    transform: none;
  }

  .game-picker > select,
  .game-picker > button,
  .actions > .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
  }
}