/* Shared shell and control material; game input and rules stay independent. */
body.app-platform-route .holo-app-shell,
#platformGate {
  --color-ink: var(--glass-ink, #172d40);
  --color-ink-soft: var(--glass-muted, #455c70);
  --color-ink-muted: var(--glass-muted, #455c70);
  --color-ink-2: var(--glass-muted, #455c70);
  --color-paper-2: var(--glass-tint);
  --surface-raised: var(--glass-tint);
  --color-muted: var(--glass-muted, #455c70);
  --color-accent: var(--glass-accent, #087586);
  --surface-glass: var(--glass-tint);
  --surface-glass-strong: var(--glass-tint);
  --glass-border: var(--glass-rim);
  --glass-paper-soft: var(--glass-tint);
  --glass-paper-medium: color-mix(in srgb, var(--glass-tint) 70%, transparent);
  --color-neutral: var(--glass-muted);

  background: transparent;
  color: var(--color-ink);
}

.holo-app-shell .holo-ambient {
  opacity: 1;
}

.holo-app-shell .holo-main,
.holo-app-shell .holo-footer {
  position: relative;
  z-index: 1;
}

body.app-platform-route .holo-app-shell .holo-topbar {
  position: sticky;
}

body.app-platform-route .holo-app-shell [data-glass] {
  background: var(--glass-tint);
  border-color: var(--glass-rim);
  box-shadow:
    var(--glass-shadow),
    inset 0 1px rgb(255 255 255 / 18%);
  color: var(--glass-ink);
  backdrop-filter: blur(5px) saturate(1.06);
}

body.app-platform-route .holo-app-shell [data-optical-ready="true"] {
  backdrop-filter: none;
  background: transparent;
}

/* Auth uses the same captured scene, not the former white veil. */
#platformGate .platform-gate__fx {
  z-index: 0;
  pointer-events: none;
}

#platformGate > .caesar-optical-layer {
  z-index: 1;
}

#platformGate .platform-gate__shell {
  z-index: 2;
}

#platformGate [data-glass] {
  background: var(--glass-tint);
  border-color: var(--glass-rim);
  color: var(--glass-ink);
  backdrop-filter: blur(6px);
  box-shadow:
    var(--glass-shadow),
    inset 0 1px rgb(255 255 255 / 38%);
}

#platformGate [data-optical-ready="true"] {
  background: transparent;
  backdrop-filter: none;
}

#platformGate :is(.platform-auth-tabs, input, select, textarea) {
  color: var(--glass-ink);
  background: var(--glass-tint);
  border-color: var(--glass-rim);
}

#platformGate .platform-auth-tabs button[aria-selected="true"] {
  color: var(--glass-ink);
  background: color-mix(in srgb, var(--glass-accent) 14%, transparent);
  box-shadow: inset 0 -2px var(--glass-accent);
}

#platformGate .platform-modal,
.holo-app-shell .platform-modal {
  background: rgb(9 21 38 / 24%);
  backdrop-filter: blur(5px);
}

#platformGate .platform-modal__card,
.holo-app-shell .platform-modal__card {
  position: relative;
  z-index: 1;
}

#platformGate .platform-modal > .caesar-optical-layer,
.holo-app-shell .platform-modal > .caesar-optical-layer {
  z-index: 0;
}

body.app-platform-route
  .holo-app-shell
  :is(
    .platform-panel__header,
    .platform-panel__body,
    .holo-config-grid,
    .holo-room-panel,
    .account-settings,
    .social-activity
  ) {
  background: transparent;
}

body.app-platform-route
  .holo-app-shell
  :is(
    .holo-page-heading p,
    .holo-page-heading span,
    .holo-footer,
    .platform-panel p,
    .platform-field small,
    .holo-field > span
  ) {
  color: var(--glass-muted);
}

body.app-platform-route
  .holo-app-shell
  :is(
    input,
    select,
    textarea,
    .platform-soft-button,
    .platform-icon-button,
    .holo-nav a,
    .holo-account,
    .holo-segmented button
  ) {
  background: var(--glass-tint);
  color: var(--glass-ink);
  border-color: var(--glass-rim);
  border-radius: 12px;
}

body.app-platform-route .holo-app-shell :is(button, a)[aria-pressed="true"],
body.app-platform-route .holo-app-shell .holo-nav a[aria-current="page"] {
  border-color: var(--glass-accent);
  box-shadow: inset 0 -2px var(--glass-accent);
}

body.app-platform-route .holo-app-shell option {
  background: #f2f8fb;
  color: #172d40;
}

body.app-platform-route .holo-app-shell[data-glass-theme="dark"] option {
  background: #162339;
  color: #eef8ff;
}

body.app-platform-route
  .holo-app-shell[data-glass-theme="dark"]
  :is(
    .platform-panel__header h2,
    .platform-panel__header h3,
    .platform-field,
    .account-toggle,
    .social-me__copy,
    .platform-list,
    .platform-modal__card
  ) {
  color: var(--glass-ink);
}

body.app-platform-route .holo-app-shell[data-glass-theme="dark"] {
  color-scheme: dark;
}

body.app-platform-route .holo-app-shell[data-glass-theme="light"] {
  color-scheme: light;
}

.caesar-appearance-row {
  display: flex;
  justify-content: end;
  margin: -1rem 0 1rem;
  position: relative;
  z-index: 8;
}

.caesar-appearance {
  position: relative;
}

.caesar-appearance > summary {
  list-style: none;
  display: flex;
  gap: 8px;
  align-items: center;
  cursor: pointer;
  padding: 9px 16px;
  border: 1px solid var(--glass-rim);
  border-radius: 999px;
  background: var(--glass-tint);
}

.caesar-appearance > summary::-webkit-details-marker {
  display: none;
}

.caesar-appearance__panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: min(320px, calc(100vw - 32px));
  border-radius: 22px;
  padding: 20px;
  display: grid;
  gap: 13px;
}

.caesar-appearance__panel header {
  display: grid;
  gap: 5px;
  padding-bottom: 8px;
}

.caesar-appearance__panel small,
.caesar-appearance__panel p {
  color: var(--glass-muted);
  font-size: 12px;
}

.caesar-appearance__panel p {
  line-height: 1.6;
  margin: 0;
}

.caesar-appearance__panel label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
}

.caesar-appearance__panel select {
  padding: 8px;
  max-width: 65%;
}

.caesar-switch input {
  accent-color: var(--glass-accent);
  width: 18px;
  height: 18px;
}

/* Scene previews contain real arena renders, with a readable label below. */
body.app-platform-route .holo-app-shell .tt-scene {
  padding: 0;
  overflow: hidden;
  min-height: 0;
  display: grid;
  gap: 0;
  border-width: 1px;
  background: var(--glass-tint);
  color: var(--glass-ink);
  position: relative;
}

.tt-scene__image {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  display: block;
}

.tt-scene__copy {
  padding: 18px 22px;
  display: grid;
  gap: 6px;
}

.tt-scene__copy > span {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--glass-accent);
}

.tt-scene__copy strong {
  font-size: 23px;
}

.tt-scene__copy small {
  font-size: 12px;
  color: var(--glass-muted);
}

.tt-scene__selected {
  position: absolute;
  right: 14px;
  top: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  color: #efffff;
  background: #075765;
  font-size: 12px;
}

.tt-config {
  align-self: start;
}

.tt-config h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.tt-config > p {
  color: var(--glass-muted);
  line-height: 1.65;
  font-size: 14px;
}

.tt-config .tt-config__eyebrow {
  color: var(--glass-accent);
  letter-spacing: 0.14em;
  font-size: 10px;
  margin-bottom: 6px;
}

body.app-platform-route .holo-app-shell .tt-launch {
  color: #f5ffff;
  background: #087586;
  border-color: transparent;
}

.tt-mode-links a,
.tt-mode-links span {
  background: var(--glass-tint);
  border: 1px solid var(--glass-rim);
  color: var(--glass-ink);
  text-decoration: none;
}

.tt-mode-links [aria-current] {
  color: var(--glass-accent);
  border-color: var(--glass-accent);
}

body.app-game-route > .caesar-optical-layer {
  z-index: 99;
}

body.app-game-route [data-glass] {
  background: var(--glass-tint);
  border-color: var(--glass-rim);
  color: var(--glass-ink);
  backdrop-filter: blur(5px) saturate(1.06);
  box-shadow: inset 0 1px rgb(255 255 255 / 16%);
}

body.app-game-route [data-optical-ready="true"] {
  backdrop-filter: none;
}

body.app-game-route
  :is(.p1Score, .p2Score, .hudMiddle, .game-settings__header) {
  background: transparent;
}

body.app-game-route[data-glass-theme] {
  --game-ink: var(--glass-ink);
  --game-muted: var(--glass-muted);
}

.tt-quick-guide {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0;
}

.tt-quick-guide span {
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 12px;
  border: 1px solid var(--glass-rim);
}

.tt-control-guide {
  padding: clamp(20px, 4vw, 38px);
  margin-bottom: 28px;
  border-radius: 24px;
  line-height: 1.7;
}

.tt-control-guide h2 {
  margin: 6px 0 14px;
  font-size: clamp(22px, 3vw, 32px);
}

.tt-control-guide > p {
  max-width: 75ch;
  color: var(--glass-muted);
}

.tt-control-guide dl {
  margin: 22px 0 26px;
}

.tt-control-guide dl > div {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  gap: 20px;
  padding-block: 17px;
  border-top: 1px solid var(--glass-rim);
}

.tt-control-guide dt {
  font-weight: 650;
  color: var(--glass-ink);
}

.tt-control-guide dd {
  margin: 0;
  max-width: 76ch;
  color: var(--glass-muted);
}

.tt-control-guide kbd {
  display: inline-block;
  min-width: 24px;
  padding: 0 6px;
  border: 1px solid var(--glass-rim);
  border-radius: 5px;
  background: var(--glass-tint);
  box-shadow: 0 2px rgb(25 50 70 / 12%);
  color: var(--glass-ink);
  text-align: center;
  font: 600 12px / 1.7 var(--font-body);
}

.tt-control-guide > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  text-decoration: none;
}

@media (width <= 700px) {
  .tt-control-guide dl > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .caesar-appearance-row {
    margin-top: 0;
  }

  .tt-scene__image {
    aspect-ratio: 16 / 8;
  }

  .tt-scene__copy {
    padding: 14px 18px;
  }
}