:root {
  color-scheme: dark;
  --bg: #09090b;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-strong: rgba(18, 18, 21, 0.96);
  --border: rgba(255, 255, 255, 0.1);
  --text: #ffffff;
  --muted: #71717a;
  --subtle: #a1a1aa;
  --caret: #ffffff;
  --danger: #ef4444;
  --success: #4ade80;
}

body[data-theme='light'] {
  color-scheme: light;
  --bg: #f5f5f4;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.98);
  --border: rgba(0, 0, 0, 0.1);
  --text: #000000;
  --muted: #a8a29e;
  --subtle: #57534e;
  --caret: #000000;
  --danger: #dc2626;
  --success: #15803d;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

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

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  transition:
    background 300ms ease,
    color 300ms ease;
}

.pi-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.pi-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  inset: 0 auto auto 0;
  pointer-events: none;
}

.pi-controls {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 3;
  display: flex;
  gap: 0.85rem;
}

.pi-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.75rem;
  height: 3.75rem;
  padding: 0 1rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface);
  color: var(--text);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 300ms ease,
    border-color 300ms ease,
    color 300ms ease;
}

.pi-control--text {
  min-width: 0;
  padding-inline: 1rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.pi-control:hover,
.pi-action-button:hover,
.pi-tab:hover {
  transform: translateY(-1px);
}

.pi-control:active,
.pi-action-button:active,
.pi-tab:active {
  transform: translateY(1px);
}

.pi-control:focus-visible,
.pi-action-button:focus-visible,
.pi-dialog-close:focus-visible,
.pi-field-input:focus-visible,
.pi-tab:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--text) 70%, transparent);
  outline-offset: 4px;
}

.pi-control svg {
  width: 1.55rem;
  height: 1.55rem;
  fill: currentColor;
}

.pi-main {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(2rem, 6vw, 4rem);
}

.pi-title {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.pi-scoreboard {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
  font-size: clamp(1.05rem, 2vw, 1.5rem);
  font-weight: 500;
  color: var(--subtle);
}

.score-line {
  margin: 0;
}

.score-line strong {
  color: inherit;
  font-size: 1em;
  line-height: inherit;
  font-variant-numeric: tabular-nums;
}

.pi-stage {
  display: flex;
  align-items: center;
  min-width: 0;
}

.pi-mark {
  flex-shrink: 0;
  padding-right: clamp(1.5rem, 4vw, 2.5rem);
}

.pi-symbol {
  display: inline-block;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(3.75rem, 11vw, 8rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.pi-stream-shell {
  position: relative;
  min-width: 0;
  flex: 1;
  overflow: hidden;
  padding-right: 6rem;
}

.pi-stream-line {
  font-size: clamp(3.75rem, 11vw, 8rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.045em;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.pi-stream {
  position: relative;
  display: flex;
  align-items: baseline;
  padding-right: 0.7em;
  will-change: transform;
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.pi-digit {
  position: relative;
  display: inline-block;
  transition:
    transform 500ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 500ms cubic-bezier(0.22, 1, 0.36, 1),
    filter 500ms cubic-bezier(0.22, 1, 0.36, 1),
    color 300ms ease;
  will-change: transform;
}

.pi-digit--trail {
  color: var(--muted);
}

.pi-caret-wrap {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  justify-content: flex-start;
  width: 0.66em;
  margin-left: 0.02em;
}

.pi-caret-placeholder {
  opacity: 0;
  user-select: none;
}

.pi-caret {
  position: absolute;
  top: 0;
  left: 0;
  width: 0.09em;
  height: 1em;
  background: var(--caret);
  animation: gracefulBlink 1.6s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.pi-expected {
  display: inline-block;
  margin-left: 0.04em;
  color: var(--danger);
  transition: color 300ms ease;
}

.pi-status {
  margin-top: 3rem;
}

.status-copy,
.status-save-copy,
.pi-dialog-copy,
.pi-board-meta,
.pi-board-status,
.pi-player-card {
  max-width: 48rem;
  margin: 0;
  color: var(--subtle);
  font-size: clamp(1rem, 2vw, 1.35rem);
  line-height: 1.5;
}

.status-error-panel {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.status-error-title {
  margin: 0;
  color: var(--danger);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1;
}

.status-action-row,
.pi-dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.pi-action-button,
.pi-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.85rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.pi-action-button--secondary,
.pi-tab {
  background: transparent;
}

.pi-tab.is-active {
  background: var(--surface);
  border-color: color-mix(in srgb, var(--text) 22%, var(--border));
}

.pi-overlay {
  position: fixed;
  inset: 0;
  z-index: 10;
}

.pi-overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.56);
}

.pi-dialog {
  position: relative;
  z-index: 1;
  width: min(32rem, calc(100vw - 2rem));
  margin: min(10vh, 4rem) auto 0;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: var(--surface-strong);
  color: var(--text);
}

.pi-dialog--leaderboard {
  width: min(44rem, calc(100vw - 2rem));
}

.pi-board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.pi-dialog-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 1.2rem;
}

.pi-dialog-title {
  margin: 0 0 0.75rem;
  font-size: 1.45rem;
  line-height: 1.2;
}

.pi-dialog-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pi-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.pi-field-label {
  font-size: 0.95rem;
  font-weight: 600;
}

.pi-field-input {
  width: 100%;
  min-height: 2.9rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: transparent;
  color: var(--text);
  font: inherit;
}

.pi-field-error {
  margin: 0;
  color: var(--danger);
  font-size: 0.95rem;
}

.pi-board-meta,
.pi-board-status,
.pi-player-card {
  font-size: 0.95rem;
}

.pi-board-meta {
  margin-top: 0.25rem;
}

.pi-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1rem 0 0.9rem;
}

.pi-player-card {
  margin-top: 0.75rem;
}

.pi-board-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: min(50vh, 24rem);
  margin-top: 1rem;
  overflow-y: auto;
}

.pi-board-row {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: var(--surface);
}

.pi-board-row--highlight {
  border-color: color-mix(in srgb, var(--success) 45%, var(--border));
}

.pi-board-row--skeleton {
  min-height: 4.2rem;
}

.pi-board-row--skeleton::before,
.pi-board-row--skeleton::after {
  content: '';
  display: block;
  height: 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  animation: skeletonPulse 1.2s ease-in-out infinite;
}

.pi-board-row--skeleton::before {
  grid-column: 1 / 2;
  width: 1.5rem;
}

.pi-board-row--skeleton::after {
  grid-column: 2 / 4;
}

.pi-board-rank,
.pi-board-score {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.pi-board-name {
  min-width: 0;
}

.pi-board-username,
.pi-board-time,
.pi-board-score-label {
  display: block;
}

.pi-board-username {
  font-weight: 600;
}

.pi-board-time,
.pi-board-score-label {
  margin-top: 0.15rem;
  color: var(--muted);
  font-size: 0.83rem;
}

.pi-toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  z-index: 12;
  transform: translateX(-50%);
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: var(--surface-strong);
  color: var(--text);
  font-size: 0.95rem;
}

@keyframes gracefulBlink {
  0% {
    opacity: 0;
    transform: scaleY(0.72);
  }
  12% {
    opacity: 1;
    transform: scaleY(1);
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
  }
  65% {
    opacity: 0.18;
    transform: scaleY(0.96);
  }
  100% {
    opacity: 0;
    transform: scaleY(0.74);
  }
}

@keyframes skeletonPulse {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}

@media (max-width: 900px) {
  body {
    overflow-y: auto;
  }

  .pi-main {
    justify-content: flex-start;
    padding-top: 6.5rem;
    padding-bottom: 2.5rem;
  }

  .pi-controls {
    right: 1rem;
    top: 1rem;
    gap: 0.5rem;
  }

  .pi-stage {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .pi-mark {
    padding-right: 0;
  }

  .pi-stream-shell {
    width: 100%;
    padding-right: 3rem;
  }

  .pi-dialog {
    margin-top: 1rem;
  }
}

@media (max-width: 640px) {
  .pi-main {
    padding-inline: 1rem;
  }

  .pi-control {
    min-width: 3.25rem;
    height: 3.25rem;
    border-radius: 1.1rem;
  }

  .pi-control--text {
    padding-inline: 0.85rem;
    font-size: 0.88rem;
  }

  .pi-stream-shell {
    padding-right: 1.5rem;
  }

  .pi-scoreboard {
    margin-bottom: 2rem;
    gap: 0.5rem 1rem;
    font-size: 1.125rem;
  }

  .pi-board-row {
    grid-template-columns: 2.3rem minmax(0, 1fr) auto;
    gap: 0.55rem;
    padding: 0.75rem;
  }
}