.sandbox-header {
  padding-block: 18px;
}

.sandbox-account {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--muted);
  font-size: 14px;
}

.sandbox-main {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding: 32px 0 64px;
}

.sandbox-banner {
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(251, 53, 75, 0.32);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 85% 0%, rgba(251, 53, 75, 0.16), transparent 35%),
    var(--panel);
  box-shadow: var(--shadow);
  display: flex;
  gap: clamp(20px, 5vw, 60px);
  align-items: end;
  justify-content: space-between;
}

.sandbox-banner h1 {
  margin: 6px 0 0;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.sandbox-banner h1 span {
  display: block;
  color: var(--red);
}

.sandbox-banner > p {
  max-width: 480px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.system-message {
  min-height: 26px;
  margin: 18px 0;
  color: var(--green);
  font-weight: 600;
}

.system-message.error {
  color: #ff6a78;
}

.sandbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 18px;
}

.console-card {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.3);
}

.console-card h2 {
  margin: 12px 0;
  font-size: 22px;
  letter-spacing: -0.04em;
}

.console-card p {
  line-height: 1.55;
}

.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}

.card-topline .card-label {
  margin: 0;
}

.status-chip,
.round-clock {
  padding: 7px 10px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.status-chip.live {
  border-color: rgba(66, 243, 163, .28);
  color: var(--green);
}

.status-chip.eliminated,
.round-clock.expired {
  border-color: rgba(251, 53, 75, .34);
  color: #ff7d8c;
}

.status-chip.host {
  border-color: rgba(38, 221, 235, .3);
  color: var(--cyan);
}

.mini-form,
.admin-controls {
  display: grid;
  gap: 12px;
}

.mini-form label,
.admin-controls label,
.player-card label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.mini-form input,
.admin-controls input,
.admin-controls select,
.player-card input,
.prompt-input input {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px;
  color: var(--text);
  background: rgba(0,0,0,.25);
  padding: 10px 12px;
}

.mini-form input:focus,
.admin-controls input:focus,
.admin-controls select:focus,
.player-card input:focus,
.prompt-input input:focus {
  outline: 2px solid rgba(38, 221, 235, .5);
  border-color: var(--cyan);
}

.card-help,
.tiny-note {
  color: var(--muted);
  font-size: 13px;
}

.account-ready {
  display: grid;
  gap: 10px;
}

.account-ready p {
  margin: 0;
  color: var(--muted);
}

.account-ready strong {
  font-size: 24px;
}

.account-ready small {
  color: var(--muted);
}

.row-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.row-buttons > * {
  flex: 1 1 150px;
}

.settings-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
}

.settings-row label {
  display: grid;
  gap: 5px;
}

.host-stat-row,
.player-metrics {
  display: flex;
  gap: 10px;
  margin: 2px 0 10px;
}

.host-stat-row span,
.player-metrics span {
  flex: 1;
  padding: 10px;
  background: rgba(255,255,255,.04);
  border-radius: 12px;
  color: var(--muted);
  font-size: 12px;
}

.host-stat-row strong,
.player-metrics strong {
  display: block;
  color: var(--text);
  font-size: 22px;
  margin-top: 4px;
}

.round-control {
  padding: 14px;
  margin: 8px 0;
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
}

.round-control label {
  grid-column: 1 / -1;
}

.danger-button {
  border: 1px solid rgba(251,53,75,.4);
  color: #ff8a96;
  background: transparent;
}

.player-card input {
  margin: 6px 0 14px;
}

.hand-stage {
  display: grid;
  gap: 13px;
}

.mini-pc {
  position: relative;
  width: min(100%, 620px);
  margin: 4px auto;
}

.pc-diagram-card {
  padding: 8px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(11,14,25,.92), rgba(8,10,18,.92));
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: inset 0 0 44px rgba(38,221,235,.05);
}

.pc-diagram-stage {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
}

.pc-diagram-image {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
}

.pc-target {
  position: absolute;
  display: grid;
  place-items: center;
  color: rgba(255,255,255,.96);
  background: rgba(8,12,22,.2);
  border: 2px solid rgba(255,255,255,.38);
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
  opacity: .9;
}

.pc-target span {
  display: inline-grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  color: #ffffff;
  background: rgba(8,12,22,.7);
  border: 1px solid rgba(255,255,255,.35);
  box-shadow: 0 0 14px rgba(0,0,0,.25);
}

.pc-target:not(:disabled):hover {
  transform: scale(1.03);
  border-color: var(--cyan);
  background: rgba(38,221,235,.14);
}

.pc-target.active-target:not(:disabled) {
  border-color: var(--cyan);
  box-shadow: 0 0 25px rgba(38,221,235,.4);
  background: rgba(38,221,235,.08);
}

.zone-top-vent {
  left: 28.3%;
  top: 11.4%;
  width: 38.3%;
  height: 8.8%;
  border-radius: 18px;
}

.zone-power-button {
  left: 73.8%;
  top: 17.2%;
  width: 8.4%;
  height: 9.2%;
  border-radius: 999px;
}

.zone-front-fans {
  left: 82.5%;
  top: 27.2%;
  width: 11.1%;
  height: 58.2%;
  border-radius: 18px;
}

.zone-side-glass {
  left: 29.2%;
  top: 22.2%;
  width: 30.8%;
  height: 54.1%;
  border-radius: 12px;
}

.zone-gpu-area {
  left: 34.4%;
  top: 50.1%;
  width: 24.7%;
  height: 14.4%;
  border-radius: 10px;
}

.zone-rear-fan {
  left: 29.8%;
  top: 31.3%;
  width: 14.8%;
  height: 28.1%;
  border-radius: 16px;
}

.zone-psu-shroud {
  left: 29.9%;
  top: 70.2%;
  width: 31.3%;
  height: 12.4%;
  border-radius: 10px;
}

.holding-hand {
  position: absolute;
  right: -13px;
  bottom: 25px;
  width: 82px;
  height: 53px;
  border-radius: 40px 0 0 40px;
  background: linear-gradient(135deg, rgba(251,53,75,.96), rgba(117,55,255,.9));
  opacity: .65;
}

.diagram-help {
  text-align: center;
  margin: -4px auto 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.hand-status {
  text-align: center;
  margin: 0;
  color: var(--muted);
}

.active-prompt {
  min-height: 270px;
}

.prompt-kind {
  margin: 4px 0;
  color: var(--cyan);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.active-prompt h2 {
  min-height: 58px;
  margin: 18px 0;
}

.prompt-input {
  display: flex;
  gap: 8px;
}

.prompt-input input {
  flex: 1;
}

.hold-button {
  width: 100%;
  min-height: 68px;
  font-weight: 900;
  font-size: 20px;
}

.target-instruction {
  padding: 14px;
  border-radius: 12px;
  background: rgba(38,221,235,.1);
  color: var(--cyan);
}

.submission-result {
  min-height: 22px;
  color: var(--green);
}

.submission-result.error {
  color: #ff7d8c;
}

.bottom-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(350px, 1.4fr) minmax(300px, 1fr);
  gap: 18px;
}

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

.leader-row {
  display: grid;
  grid-template-columns: minmax(130px, 1fr) repeat(3, auto);
  gap: 18px;
  align-items: center;
  padding: 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.04);
}

.leader-row strong {
  font-size: 15px;
}

.leader-row small {
  color: var(--muted);
}

.leader-status {
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 700;
  color: var(--green);
}

.leader-status.eliminated {
  color: #ff7d8c;
}

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

.audit-list {
  display: grid;
  gap: 8px;
  max-height: 360px;
  overflow: auto;
}

.audit-item {
  padding: 10px;
  background: rgba(255,255,255,.04);
  border-radius: 10px;
  font-size: 13px;
}

.audit-item strong {
  display: block;
  color: var(--cyan);
}

.audit-item small {
  color: var(--muted);
}

@media (max-width: 960px) {
  .sandbox-banner,
  .sandbox-grid,
  .bottom-grid {
    display: grid;
    grid-template-columns: 1fr;
  }

  .sandbox-banner > p {
    max-width: none;
  }
}

@media (max-width: 560px) {
  .sandbox-main,
  .sandbox-header {
    width: min(100% - 28px, var(--max));
  }

  .settings-row,
  .round-control,
  .leader-row {
    grid-template-columns: 1fr;
  }
}

/* Gameplay Sandbox v2 additions: automated rounds and fairness controls */
.sandbox-account {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.engine-strip {
  margin: 0 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  padding: 12px 16px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  background: rgba(255,255,255,.035);
  color: var(--muted);
  font-size: 13px;
}

.engine-strip strong {
  color: var(--text);
}

.settings-five {
  grid-template-columns: repeat(3, minmax(100px, 1fr));
}

.phase-message,
.player-message {
  min-height: 44px;
  padding: 11px 13px;
  margin: 4px 0 12px;
  border-radius: 12px;
  background: rgba(38, 221, 235, .07);
  border: 1px solid rgba(38, 221, 235, .14);
  color: var(--muted);
  line-height: 1.45;
}

.player-message.good {
  color: var(--green);
  border-color: rgba(66,243,163,.25);
  background: rgba(66,243,163,.07);
}

.player-message.alert {
  color: #ffc15c;
  border-color: rgba(255,193,92,.28);
  background: rgba(255,193,92,.07);
}

.player-message.danger {
  color: #ff7d8c;
  border-color: rgba(251,53,75,.30);
  background: rgba(251,53,75,.08);
}

.auto-round-control {
  grid-template-columns: 1fr auto auto;
}

.void-controls {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid rgba(251,53,75,.16);
  border-radius: 16px;
  background: rgba(251,53,75,.035);
}

.void-controls input {
  min-height: 46px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px;
  color: var(--text);
  background: rgba(0,0,0,.25);
  padding: 10px 12px;
}

.void-controls input:focus {
  outline: 2px solid rgba(251,53,75,.4);
}

.warning-prompt {
  min-height: 270px;
  display: grid;
  align-content: center;
  text-align: center;
  gap: 10px;
  padding: 18px;
  border-radius: 18px;
  background: radial-gradient(circle at center, rgba(255,193,92,.13), rgba(255,193,92,.02));
  border: 1px solid rgba(255,193,92,.28);
}

.warning-label {
  color: #ffc15c;
}

.warning-prompt h2 {
  margin: 0;
}

.warning-prompt p:not(.prompt-kind) {
  margin: 0;
  color: var(--muted);
}

.warning-pulse {
  margin: 18px auto 0;
  width: 58px;
  height: 58px;
  border: 3px solid rgba(255,193,92,.64);
  border-radius: 50%;
  animation: warning-pulse 1.2s ease-out infinite;
}

@keyframes warning-pulse {
  0% { transform: scale(.62); opacity: .95; }
  100% { transform: scale(1.48); opacity: 0; }
}

.round-clock.warning {
  border-color: rgba(255,193,92,.34);
  color: #ffc15c;
}

.round-clock.paused {
  border-color: rgba(181,164,255,.36);
  color: #c9bcff;
}

.status-chip.paused {
  border-color: rgba(181,164,255,.35);
  color: #c9bcff;
}

.status-chip.pending {
  border-color: rgba(255,193,92,.32);
  color: #ffc15c;
}

.holding-hand.hand-off {
  opacity: .18;
  filter: grayscale(1);
}

.holding-hand.hand-paused {
  opacity: .4;
  filter: saturate(.35);
}

.leader-row {
  grid-template-columns: minmax(120px, 1fr) repeat(4, auto);
}

.leader-outcome {
  max-width: 180px;
  text-align: right;
  color: var(--muted);
}

.audit-item div {
  word-break: break-word;
}

button:disabled {
  opacity: .48;
  cursor: not-allowed;
}

@media (max-width: 720px) {
  .settings-five,
  .auto-round-control,
  .leader-row {
    grid-template-columns: 1fr;
  }

  .leader-outcome {
    max-width: none;
    text-align: left;
  }
}


/* Gameplay Sandbox v3 — host-only Debug / Live PC mode */
.view-mode-control {
  padding: 14px;
  margin: 12px 0;
  border: 1px solid rgba(136, 88, 255, .35);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(112, 61, 211, .12), rgba(10, 12, 22, .5));
}

.view-mode-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.view-mode-heading h3 {
  margin: 3px 0 0;
  font-size: 17px;
}

.control-label {
  margin: 0;
  color: #bf93ff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.status-chip.debug {
  border-color: rgba(89, 244, 114, .45);
  color: #66f280;
  background: rgba(51, 202, 73, .1);
}

.status-chip.live-view {
  border-color: rgba(41, 170, 255, .48);
  color: #44b6ff;
  background: rgba(33, 132, 255, .12);
}

.status-chip.interaction-map {
  border-color: rgba(245, 189, 58, .5);
  color: #ffd75c;
  background: rgba(245, 189, 58, .1);
}

.mode-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}

.mode-option {
  display: grid;
  gap: 3px;
  padding: 10px 12px;
  text-align: left;
  color: var(--muted);
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 11px;
  background: rgba(255,255,255,.025);
}

.mode-option strong { color: var(--text); }
.mode-option small { font-size: 11px; }
.mode-option:not(:disabled):hover { border-color: rgba(165,114,255,.7); }
.mode-option.is-selected[data-mode="debug"] {
  border-color: rgba(89, 244, 114, .7);
  box-shadow: inset 0 0 20px rgba(51, 202, 73, .11);
}
.mode-option.is-selected[data-mode="live"] {
  border-color: rgba(41, 170, 255, .8);
  box-shadow: inset 0 0 20px rgba(33, 132, 255, .14);
}

.visual-mode-display {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 2px;
  color: var(--muted);
}

.pc-diagram-stage { background: #070910; }
.pc-image-live { display: none; }
.pc-diagram-stage.view-live .pc-image-debug { display: none; }
.pc-diagram-stage.view-live .pc-image-live { display: block; }

.hotspot-gate {
  position: absolute;
  z-index: 18;
  inset: auto 12px 12px 12px;
  padding: 8px 10px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 10px;
  color: rgba(255,255,255,.65);
  font-size: 11px;
  text-align: center;
  background: rgba(5,7,13,.82);
  pointer-events: none;
  opacity: 1;
  transition: opacity .18s ease;
}

.pc-diagram-stage.is-interactive .hotspot-gate { opacity: 0; }
.pc-diagram-stage:not(.is-interactive) .pc-target { pointer-events: none; }

.pc-diagram-stage.view-live .pc-target {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  opacity: 0;
}

.pc-diagram-stage.view-live .pc-target span { display: none; }
.pc-diagram-stage.view-live.is-interactive .pc-target:not(:disabled) {
  opacity: 1;
  cursor: default;
  border-color: transparent;
  background: transparent;
}

.pc-diagram-stage.view-live.is-interactive .pc-target:not(:disabled):hover,
.pc-diagram-stage.view-live.is-interactive .pc-target:not(:disabled):focus-visible {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  outline: none;
}

.pc-diagram-stage.view-debug:not(.is-interactive) .pc-target { opacity: .43; }
.pc-diagram-stage.view-debug.is-interactive .pc-target { opacity: .95; }
.pc-diagram-stage.component-check-map.is-interactive .pc-target {
  opacity: 1;
  box-shadow: 0 0 28px rgba(38,221,235,.46);
}
.pc-diagram-stage.component-check-map.is-interactive::after {
  content: "LABELED COMPONENT CHECK VIEW";
  position: absolute;
  z-index: 20;
  top: 12px;
  right: 12px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(245,189,58,.55);
  background: rgba(5,7,13,.82);
  color: #ffd75c;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
}
.pc-diagram-stage.view-live .holding-hand { opacity: .45; }

@media (max-width: 680px) {
  .visual-mode-display { flex-wrap: wrap; }
}


/* Gameplay Sandbox v4 — protected healthy-play break controls */
.break-panel {
  padding: 14px;
  border: 1px solid rgba(66,243,163,.18);
  border-radius: 17px;
  background: linear-gradient(145deg, rgba(66,243,163,.055), rgba(8,10,18,.58));
}

.break-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 8px;
}

.break-header h3 {
  margin: 3px 0 0;
  font-size: 17px;
}

.status-chip.break-active {
  border-color: rgba(66,243,163,.42);
  color: var(--green);
  background: rgba(66,243,163,.09);
}

.break-active-message {
  margin: 8px 0 12px;
  padding: 10px 12px;
  min-height: 42px;
  color: var(--muted);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 11px;
  background: rgba(255,255,255,.03);
  line-height: 1.45;
}

.break-active-message.is-active {
  color: var(--green);
  border-color: rgba(66,243,163,.24);
  background: rgba(66,243,163,.06);
}

.break-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
}

.break-option {
  display: grid;
  align-content: start;
  gap: 7px;
  padding: 12px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 13px;
  background: rgba(255,255,255,.025);
}

.break-option h4,
.break-option p {
  margin: 0;
}

.break-option h4 {
  color: var(--text);
  font-size: 14px;
}

.break-option p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.break-option p strong {
  color: var(--text);
}

.break-timer {
  min-height: 34px;
  color: var(--cyan) !important;
  font-weight: 700;
}

.emergency-break {
  border-color: rgba(255,193,92,.18);
}

.long-break {
  border-color: rgba(181,164,255,.2);
}

.break-option .button {
  margin-top: 5px;
  min-height: 40px;
}

.break-security-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.holding-hand.hand-break {
  opacity: .42;
  filter: saturate(.45) hue-rotate(75deg);
}

.leader-status.on-break {
  color: #ffc15c;
}

@media (max-width: 680px) {
  .break-options { grid-template-columns: 1fr; }
  .break-header { flex-wrap: wrap; }
}


/* Gameplay Sandbox v5 — fixed seats, secure invitation keys and roster lock */
.roster-stats { flex-wrap: wrap; }
.roster-stats span { min-width: 92px; }

.roster-control,
.contestant-seat-status,
.seat-redemption,
.roster-closed {
  padding: 14px;
  margin: 12px 0;
  border-radius: 16px;
  border: 1px solid rgba(38, 221, 235, .18);
  background: rgba(7, 10, 20, .48);
}

.roster-heading,
.seat-status-heading,
.issued-key-heading {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.roster-heading h3,
.seat-status-heading h3 {
  margin: 3px 0 0;
  font-size: 16px;
}

.issued-keys {
  border: 1px solid rgba(245, 189, 58, .28);
  background: rgba(245, 189, 58, .05);
  border-radius: 14px;
  padding: 12px;
  margin: 12px 0;
}

.security-warning {
  margin: 0 0 10px;
  color: #f5bd3a;
  font-size: 12px;
}

.key-list,
.seat-roster {
  display: grid;
  gap: 7px;
  margin: 10px 0;
}

.key-row,
.roster-row {
  display: grid;
  grid-template-columns: 58px minmax(120px, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 8px 9px;
  background: rgba(255,255,255,.035);
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.06);
  font-size: 12px;
}

.key-row code {
  font-size: 12px;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.roster-row strong { color: var(--text); }
.roster-row small { color: var(--muted); text-align: right; }
.roster-row .claimed { color: var(--cyan); }
.roster-row .checked-in { color: #59f472; }
.roster-row .closed { color: #ff8a96; }

.roster-buttons { margin-top: 10px; }

.contestant-seat-status p { margin: 8px 0 12px; color: var(--muted); }
.contestant-seat-status .status-chip.checked-in { border-color: rgba(89,244,114,.5); color: #59f472; }
.contestant-seat-status .status-chip.locked { border-color: rgba(38,221,235,.5); color: var(--cyan); }
.contestant-seat-status .status-chip.closed { border-color: rgba(251,53,75,.5); color: #ff8a96; }

#securedGameplayState { display: grid; gap: 13px; }

@media (max-width: 680px) {
  .key-row, .roster-row { grid-template-columns: 48px 1fr; }
  .roster-row small { grid-column: 2; text-align: left; }
}


/* Gameplay Sandbox v6 — unlimited approved submissions and strict check-in network gate */
.submission-import {
  display: grid;
  gap: 8px;
  padding: 14px;
  margin: 12px 0;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  background: rgba(255,255,255,.03);
}

.submission-import textarea {
  width: 100%;
  min-height: 170px;
  resize: vertical;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 10px;
  color: var(--text);
  background: rgba(5,7,13,.78);
  font: inherit;
  line-height: 1.45;
}

.submission-import textarea:focus {
  outline: 2px solid rgba(38,221,235,.42);
  border-color: var(--cyan);
}

.sandbox-network-check {
  display: grid;
  gap: 6px;
  padding: 12px;
  margin: 10px 0 12px;
  border: 1px solid rgba(41,170,255,.28);
  border-radius: 12px;
  background: rgba(31,106,255,.07);
}

.sandbox-network-check label small { color: var(--muted); font-weight: 400; }
.sandbox-network-check .tiny-note { margin: 0; }


/* Gameplay Sandbox v8 — host roster operations and safe exports */
.key-export-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 7px;
}

.roster-ops-note {
  border-left: 3px solid rgba(245, 189, 58, .6);
  padding: 8px 10px;
  background: rgba(245, 189, 58, .045);
  border-radius: 0 9px 9px 0;
}

.roster-row.has-actions {
  grid-template-columns: 58px minmax(120px, 1fr) auto minmax(168px, auto);
}

.roster-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
}

.roster-action-button {
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 11px;
}

.roster-action-button.danger {
  border: 1px solid rgba(251, 53, 75, .45);
  color: #ff8a96;
  background: rgba(251, 53, 75, .04);
}

@media (max-width: 850px) {
  .roster-row.has-actions { grid-template-columns: 48px 1fr; }
  .roster-row.has-actions small,
  .roster-row.has-actions .roster-actions { grid-column: 2; text-align: left; justify-content: flex-start; }
}


/* Gameplay Sandbox v9 — responsive player-first contest layout */
.player-card {
  grid-column: 1 / -1;
}

#securedGameplayState {
  width: min(100%, 980px);
  margin: 0 auto;
  gap: 14px;
}

.gameplay-priority-note {
  margin: 0;
  padding: 10px 12px;
  border-radius: 11px;
  border: 1px solid rgba(38, 221, 235, .14);
  background: rgba(38, 221, 235, .055);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.gameplay-priority-note strong {
  color: var(--cyan);
}

.presence-check-panel {
  display: grid;
  gap: 10px;
  padding: clamp(14px, 2.3vw, 20px);
  border: 1px solid rgba(251, 53, 75, .27);
  border-radius: 17px;
  background:
    radial-gradient(circle at 90% 5%, rgba(251, 53, 75, .12), transparent 35%),
    rgba(9, 12, 22, .64);
  box-shadow: inset 0 0 26px rgba(251, 53, 75, .035);
}

.presence-check-panel .card-topline {
  margin-bottom: 2px;
}

.presence-check-panel .prompt-empty,
.presence-check-panel .warning-prompt,
.presence-check-panel .active-prompt {
  min-height: 0;
  margin: 0;
}

.presence-check-panel .active-prompt {
  display: grid;
  gap: 10px;
}

.presence-check-panel .active-prompt.is-hidden {
  display: none;
}

.presence-check-panel .prompt-empty h2,
.presence-check-panel .warning-prompt h2,
.presence-check-panel .active-prompt h2 {
  margin: 6px 0;
}

.presence-check-panel .target-instruction {
  margin: 0;
}

.visual-mode-display {
  margin-top: 4px;
  padding-top: 4px;
}

.mini-pc {
  width: min(100%, 720px);
}

@media (min-width: 961px) {
  .identity-card {
    grid-column: 1;
  }

  .admin-card:not(.is-hidden) {
    grid-column: 1 / -1;
  }

  .player-card {
    padding-inline: clamp(20px, 4vw, 34px);
  }
}

@media (max-width: 720px) {
  .sandbox-main {
    padding-top: 18px;
  }

  .player-card {
    padding: 14px;
  }

  #securedGameplayState {
    gap: 10px;
  }

  .player-metrics {
    gap: 7px;
  }

  .player-metrics span {
    padding: 9px;
  }

  .player-metrics strong {
    font-size: 20px;
  }

  .break-panel,
  .presence-check-panel {
    padding: 12px;
    border-radius: 14px;
  }

  .presence-check-panel .hold-button {
    min-height: 64px;
  }

  .visual-mode-display {
    gap: 7px;
  }

  .pc-diagram-card {
    padding: 5px;
    border-radius: 15px;
  }

  .hotspot-gate {
    inset: auto 7px 7px 7px;
    font-size: 10px;
  }
}


/* Build Step 17 — secure device handoff and one active gameplay session */
.device-session-panel {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(38,221,235,.24);
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(38,221,235,.065), rgba(165,114,255,.045));
}

.device-session-heading {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
}

.device-session-heading h3 {
  margin: 3px 0 0;
  font-size: 17px;
}

.device-session-panel > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.device-session-panel .device-session-note {
  padding-top: 9px;
  border-top: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
}

@media (max-width: 560px) {
  .device-session-heading {
    flex-direction: column;
    align-items: flex-start;
  }
}


.link-chip {
  color: var(--cyan);
  text-decoration: none;
}

.host-preflight {
  margin: 18px 0;
  padding: 18px;
  border: 1px solid rgba(66, 243, 163, 0.18);
  border-radius: 18px;
  background: rgba(66, 243, 163, 0.045);
}

.preflight-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.preflight-heading h3 {
  margin: 3px 0 0;
}

.preflight-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 10px;
}

.preflight-item {
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.preflight-item strong {
  font-size: 13px;
}

.preflight-item span {
  color: var(--muted);
  font-size: 12px;
}

.preflight-item.is-ok {
  border-color: rgba(66, 243, 163, 0.32);
  background: rgba(66, 243, 163, 0.055);
}

.preflight-item.is-ok span {
  color: var(--green);
}

.preflight-item.is-blocked {
  border-color: rgba(255, 208, 87, 0.24);
}

@media (max-width: 720px) {
  .preflight-list {
    grid-template-columns: 1fr;
  }
}


/* Step 23: rules and privacy acknowledgement gate */
.contestant-agreement { display: grid; gap: 10px; margin: 14px 0; padding: 14px; border: 1px solid rgba(255,255,255,.1); border-radius: 16px; background: rgba(255,255,255,.035); }
.agreement-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.agreement-heading h3 { margin: 2px 0 0; font-size: 16px; }
.agreement-check { display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 9px; padding: 9px 10px; border-radius: 12px; background: rgba(0,0,0,.18); border: 1px solid rgba(255,255,255,.06); color: var(--text); font-size: 13px; line-height: 1.45; }
.agreement-check input { margin-top: 3px; transform: scale(1.15); }
.agreement-check a { color: var(--cyan); font-weight: 800; }
.agreement-status { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.agreement-status.ready { color: #7cf5a4; }
.legal-page { max-width: 1000px; margin: 0 auto; }
.legal-card { display: grid; gap: 12px; line-height: 1.65; }
.legal-card h2 { margin: 10px 0 0; }
.legal-links-card { margin: 22px auto; max-width: 980px; }

.incident-panel {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid rgba(191, 147, 255, .2);
  border-radius: 16px;
  background: rgba(191, 147, 255, .045);
}

.incident-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.incident-heading h3 {
  margin: 2px 0 0;
  font-size: 17px;
}

.incident-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.incident-panel label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.incident-panel select,
.incident-panel textarea {
  min-height: 46px;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px;
  color: var(--text);
  background: rgba(0,0,0,.25);
  padding: 10px 12px;
}

.incident-panel textarea {
  resize: vertical;
  min-height: 92px;
}

.incident-panel select:focus,
.incident-panel textarea:focus {
  outline: 2px solid rgba(191,147,255,.4);
}

@media (max-width: 700px) {
  .incident-fields {
    grid-template-columns: 1fr;
  }
}


.final-results-panel {
  margin: 14px 0;
  padding: 16px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 18px;
  background: rgba(255,255,255,.035);
}

.final-results-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.final-results-heading h3 {
  margin: 0;
  font-size: 18px;
}

.final-summary {
  margin: 12px 0;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(165,114,255,.22);
  background: rgba(165,114,255,.08);
  color: var(--text);
  line-height: 1.5;
}

.final-checklist {
  display: grid;
  gap: 8px;
  margin: 12px 0;
}

.final-results-panel textarea {
  width: 100%;
  resize: vertical;
  margin: 6px 0 12px;
}