/* ─── Design tokens ──────────────────────────────────────────────────────── */
:root {
  --ink:        #07080c;
  --surface:    #0c0e15;
  --raised:     #111420;
  --lift:       #161a28;

  --outline:    rgba(255, 255, 255, 0.065);
  --outline-2:  rgba(255, 255, 255, 0.115);
  --outline-3:  rgba(255, 255, 255, 0.18);

  --text:       #eef0f6;
  --sub:        #a8b2c6;
  --muted:      #606a80;
  --faint:      #282f42;

  --p1:         #4b8eff;
  --p1-dim:     rgba(75, 142, 255, 0.12);
  --p1-glow:    rgba(75, 142, 255, 0.28);

  --p2:         #ff5f6d;
  --p2-dim:     rgba(255, 95, 109, 0.12);
  --p2-glow:    rgba(255, 95, 109, 0.28);

  --gold:       #f4c050;
  --gold-dim:   rgba(244, 192, 80, 0.12);
  --gold-glow:  rgba(244, 192, 80, 0.3);

  --expo:       cubic-bezier(0.16, 1, 0.3, 1);
}

/* ─── Reset & base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; -webkit-font-smoothing: antialiased; }
body { background: var(--ink); color: var(--text); font-family: 'Syne', system-ui, sans-serif; }
button, input, output { font: inherit; color: inherit; background: none; border: none; outline: none; }
.hidden { display: none !important; }

/* ─── App shell ──────────────────────────────────────────────────────────── */
.app {
  display: grid;
  grid-template-columns: 1fr 400px;
  height: 100svh;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════════════════════════
   STAGE  (left panel — the color arena)
   ═══════════════════════════════════════════════════════════════════════════ */
.stage {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--outline);
  overflow: hidden;
  background:
    radial-gradient(ellipse 90% 70% at 50% 35%,
      rgba(14, 18, 30, 0.9) 0%,
      var(--ink) 68%);
}

/* Nav bar */
.stage-nav {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 22px 28px 18px;
  flex-shrink: 0;
}

.wordmark-eye {
  display: block;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
  margin-bottom: 5px;
}

.wordmark-name {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text);
}

.wordmark-live {
  color: var(--p2);
}

.room-tag {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
}

.room-tag-label {
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.room-tag-code {
  font-family: 'Syne Mono', monospace;
  font-size: 1.05rem;
  letter-spacing: 0.14em;
  color: var(--text);
}

/* Prompt */
.prompt {
  padding: 0 28px 14px;
  flex-shrink: 0;
}

.prompt-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 7px;
}

.prompt-sep { opacity: 0.35; }

.prompt-title {
  font-size: clamp(1.5rem, 2.8vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.06;
  color: var(--text);
}

/* ── Artboard stage — the color arena ─────────────────────────────────────── */
.artboard-stage {
  flex: 1;
  position: relative;
  display: grid;
  place-items: center;
  padding: 36px;
  overflow: hidden;
  /* JS writes --ambient-color here */
  --ambient-color: transparent;
}

/* deep void background */
.artboard-stage::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 75% 65% at 50% 50%,
      rgba(16, 20, 32, 0.75) 0%,
      transparent 100%);
  pointer-events: none;
  z-index: 0;
}

/* dynamic ambient glow — color responds to current guess */
.artboard-ambient {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 54% 46% at 50% 56%,
    var(--ambient-color) 0%,
    transparent 66%
  );
  transition: background 0.28s ease;
  pointer-events: none;
  z-index: 1;
}

/* logo */
.artboard {
  position: relative;
  z-index: 2;
  width: min(100%, 500px);
  aspect-ratio: 1;
  filter:
    drop-shadow(0 28px 64px rgba(0, 0, 0, 0.65))
    drop-shadow(0 6px 20px rgba(0, 0, 0, 0.4));
  transition: filter 0.4s var(--expo);
}

/* reveal — stronger presence */
body[data-phase="reveal"] .artboard {
  filter:
    drop-shadow(0 32px 80px rgba(0, 0, 0, 0.55))
    drop-shadow(0 8px 28px rgba(0, 0, 0, 0.35));
}

.artboard svg,
.preview-swatch svg,
.reveal-thumb svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* Summary list (inside stage) */
.summary-list {
  padding: 20px 28px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.summary-item {
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--outline);
  background: var(--surface);
}

.summary-item p { font-size: 0.88rem; font-weight: 600; margin-bottom: 3px; }
.summary-item small { font-size: 0.75rem; color: var(--muted); }

/* ═══════════════════════════════════════════════════════════════════════════
   PANEL  (right — the instrument panel)
   ═══════════════════════════════════════════════════════════════════════════ */
.panel {
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 18px 24px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--faint) transparent;
}

.panel::-webkit-scrollbar { width: 3px; }
.panel::-webkit-scrollbar-thumb { background: var(--faint); border-radius: 2px; }

/* ── Join block ──────────────────────────────────────────────────────────── */
.join-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--outline-2);
  background: var(--raised);
}

.field-label {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  padding-bottom: 1px;
}

.field {
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--outline);
  background: rgba(255, 255, 255, 0.028);
  padding: 0 12px;
  font-size: 0.9rem;
  transition: border-color 0.15s, background 0.15s;
}

.field:focus {
  border-color: var(--outline-3);
  background: rgba(255, 255, 255, 0.05);
}

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

.room-field {
  font-family: 'Syne Mono', monospace;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 1rem;
}

.room-row {
  display: grid;
  grid-template-columns: 1fr 42px;
  gap: 6px;
}

.gen-btn {
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--outline);
  background: rgba(255, 255, 255, 0.028);
  cursor: pointer;
  font-size: 1.1rem;
  display: grid;
  place-items: center;
  color: var(--muted);
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.gen-btn:hover {
  background: rgba(255, 255, 255, 0.065);
  border-color: var(--outline-2);
  color: var(--text);
}


.btn-join {
  margin-top: 4px;
  height: 44px;
  border-radius: 10px;
  background: var(--text);
  color: var(--ink);
  font-family: 'Syne', sans-serif;
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
}

.btn-join:hover:not(:disabled) { opacity: 0.9; }
.btn-join:active:not(:disabled) { transform: scale(0.98); }
.btn-join:disabled { opacity: 0.4; cursor: not-allowed; }

.join-hint {
  font-size: 0.72rem;
  line-height: 1.55;
  color: var(--muted);
}

/* ── Status block ────────────────────────────────────────────────────────── */
.status-block {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--outline);
  background: var(--raised);
}

.role-badge {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--faint);
  display: grid;
  place-items: center;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  flex-shrink: 0;
  transition: background 0.25s;
}

.role-badge.is-p1 { background: var(--p1); color: #fff; }
.role-badge.is-p2 { background: var(--p2); color: #fff; }

.status-copy strong {
  display: block;
  font-size: 0.86rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.status-copy p {
  font-size: 0.73rem;
  color: var(--sub);
  line-height: 1.45;
}

/* ── Presence ────────────────────────────────────────────────────────────── */
.presence {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.pcard {
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid var(--outline);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.25s, background 0.25s;
}

.pcard.is-online.is-p1 {
  border-color: rgba(75, 142, 255, 0.32);
  background: var(--p1-dim);
}

.pcard.is-online.is-p2 {
  border-color: rgba(255, 95, 109, 0.32);
  background: var(--p2-dim);
}

.pcard.is-locked {
  border-color: rgba(244, 192, 80, 0.38) !important;
  background: var(--gold-dim) !important;
  animation: lock-settle 0.4s var(--expo);
}

@keyframes lock-settle {
  from { transform: scale(1.02); }
  to   { transform: scale(1); }
}

.pcard-pip {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--faint);
  flex-shrink: 0;
  transition: background 0.25s, box-shadow 0.25s;
}

.pcard.is-online.is-p1 .pcard-pip { background: var(--p1); }
.pcard.is-online.is-p2 .pcard-pip { background: var(--p2); }
.pcard.is-locked .pcard-pip {
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
}

.pcard-name {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 0.25s;
}

.pcard.is-online .pcard-name { color: var(--text); }

/* ── Scoreboard ──────────────────────────────────────────────────────────── */
.scoreboard {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  border-radius: 16px;
  border: 1px solid var(--outline);
  background: var(--raised);
}

.score-cell {
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.p1-cell { border-radius: 15px 0 0 15px; }
.p2-cell { border-radius: 0 15px 15px 0; }

.score-sep { background: var(--outline); }

.score-label {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.score-num {
  font-family: 'Syne Mono', monospace;
  font-size: 1.55rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
  transition: color 0.3s;
}

.p1-cell .score-num { color: var(--p1); }
.p2-cell .score-num { color: var(--p2); }

/* ── Sliders ─────────────────────────────────────────────────────────────── */
.sliders {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--outline);
  background: var(--raised);
}

.slider-row {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  align-items: center;
}

.slider-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.slider-name {
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.slider-val {
  font-family: 'Syne Mono', monospace;
  font-size: 0.78rem;
  color: var(--sub);
  text-align: center;
  min-width: 32px;
  line-height: 1;
}

.slider-wrap {
  position: relative;
  height: 34px;
  display: flex;
  align-items: center;
}

.track-bg {
  position: absolute;
  inset-inline: 0;
  height: 10px;
  border-radius: 5px;
  box-shadow:
    inset 0 1px 4px rgba(0, 0, 0, 0.6),
    inset 0 0 0 1px rgba(0, 0, 0, 0.3);
  pointer-events: none;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 34px;
  background: transparent;
  position: relative;
  z-index: 1;
  cursor: pointer;
}

input[type="range"]:disabled { cursor: not-allowed; }

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  border: none;
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.65),
    0 0 0 2px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
  transition: transform 0.13s var(--expo), box-shadow 0.13s var(--expo);
}

input[type="range"]:not(:disabled):hover::-webkit-slider-thumb {
  transform: scale(1.2);
  box-shadow:
    0 4px 18px rgba(0, 0, 0, 0.6),
    0 0 0 4px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

input[type="range"]:not(:disabled):active::-webkit-slider-thumb {
  transform: scale(1.05);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  border: none;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.65);
}

/* dim sliders when disabled */
.sliders:has(input[type="range"]:disabled) {
  opacity: 0.55;
}

/* ── Preview swatch ──────────────────────────────────────────────────────── */
.preview-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preview-swatch {
  border-radius: 16px;
  border: 1px solid var(--outline-2);
  background: var(--raised);
  height: 152px;
  display: grid;
  place-items: center;
  padding: 14px;
  overflow: hidden;
}

.preview-swatch svg {
  width: auto;
  height: 100%;
  max-height: 124px;
}

.preview-vals {
  font-family: 'Syne Mono', monospace;
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  letter-spacing: 0.08em;
}

/* ── Action buttons ──────────────────────────────────────────────────────── */
.actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.btn {
  height: 42px;
  border-radius: 10px;
  font-family: 'Syne', sans-serif;
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  cursor: pointer;
  transition: opacity 0.13s, transform 0.1s, background 0.13s, color 0.13s, border-color 0.13s;
}

.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn:not(:disabled):active { transform: scale(0.97); }

.btn-ghost {
  border: 1px solid var(--outline-2);
  background: transparent;
  color: var(--sub);
}

.btn-ghost:not(:disabled):hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--outline-3);
}

.btn-lock {
  background: var(--text);
  color: var(--ink);
  border: none;
  font-weight: 700;
}

.btn-lock:not(:disabled):hover { background: #ffffff; }

/* lock-pulse: brief flash when player locks */
@keyframes lock-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.5); }
  100% { box-shadow: 0 0 0 18px rgba(255, 255, 255, 0); }
}

.btn-lock.locked-anim {
  animation: lock-pulse 0.45s ease-out;
}

/* ── Reveal panel ────────────────────────────────────────────────────────── */
.reveal-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reveal-grid {
  display: grid;
  grid-template-columns: 1fr 1.18fr 1fr;
  gap: 8px;
  align-items: start;
}

.reveal-card {
  padding: 10px 8px 12px;
  border-radius: 14px;
  border: 1px solid var(--outline);
  background: var(--raised);
  text-align: center;
  opacity: 0;
  animation: card-rise 0.5s var(--expo) forwards;
}

.reveal-card:nth-child(1) { animation-delay: 0.04s; }
.reveal-card:nth-child(2) { animation-delay: 0.12s; }
.reveal-card:nth-child(3) { animation-delay: 0.2s; }

.reveal-card.is-answer {
  border-color: rgba(244, 192, 80, 0.32);
  background: rgba(244, 192, 80, 0.045);
}

.reveal-card.is-winner {
  border-color: rgba(244, 192, 80, 0.32);
  background: rgba(244, 192, 80, 0.045);
}

@keyframes card-rise {
  from { opacity: 0; transform: translateY(12px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.reveal-card-label {
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-bottom: 8px;
}

.reveal-card.is-answer .reveal-card-label,
.reveal-card.is-winner .reveal-card-label {
  color: var(--gold);
}

.reveal-thumb {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 8px;
}

.reveal-score {
  font-family: 'Syne Mono', monospace;
  font-size: 0.8rem;
  color: var(--sub);
  display: block;
}

.reveal-card.is-answer .reveal-score {
  color: var(--gold);
  font-size: 0.72rem;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 920px) {
  .app {
    grid-template-columns: 1fr;
    height: auto;
    overflow-y: auto;
  }

  .stage {
    border-right: none;
    border-bottom: 1px solid var(--outline);
    min-height: 58vh;
  }

  .artboard-stage {
    min-height: 46vw;
  }

  .panel {
    overflow: visible;
    max-height: none;
  }
}