*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Design tokens ── */
:root {
  --blue-50:  #E6F1FB;
  --blue-100: #B5D4F4;
  --blue-200: #85B7EB;
  --blue-400: #378ADD;
  --blue-600: #185FA5;
  --blue-800: #0C447C;

  --red-50:  #FCEBEB;
  --red-100: #F7C1C1;
  --red-400: #E24B4A;
  --red-600: #A32D2D;

  --green-50:  #EAF3DE;
  --green-100: #C0DD97;
  --green-400: #639922;
  --green-600: #3B6D11;

  --amber-50:  #FAEEDA;
  --amber-400: #BA7517;
  --amber-600: #854F0B;

  --purple-50:  #EEEDFE;
  --purple-200: #AFA9EC;
  --purple-400: #7F77DD;
  --purple-600: #534AB7;
  --purple-800: #3C3489;

  --bg:        #FAFAF8;
  --surface:   #FFFFFF;
  --surface-2: #F2F1ED;
  --border:    rgba(0, 0, 0, 0.1);
  --border-md: rgba(0, 0, 0, 0.16);
  --text:      #1A1A18;
  --text-2:    #5F5E5A;
  --text-3:    #888780;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

/* ── Base ── */
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem 4rem;
}

.game-shell {
  width: 100%;
  max-width: 560px;
}

/* ── Header ── */
.header {
  text-align: center;
  margin-bottom: 2rem;
}

.header-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.header-sub {
  font-size: 13px;
  color: var(--text-3);
  margin-top: 3px;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.03em;
}

/* ── Score bar ── */
.score-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  margin-bottom: 1rem;
}

.score-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  text-align: center;
}

.score-card.you { border-color: var(--blue-200); }

.score-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.score-num {
  font-size: 28px;
  font-weight: 600;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  line-height: 1;
}

.score-card.you .score-num { color: var(--blue-600); }

.score-sep {
  font-size: 12px;
  color: var(--text-3);
  font-family: 'DM Mono', monospace;
  text-align: center;
}

/* ── Connection status badge ── */
#conn-status {
  margin-bottom: 1rem;
  text-align: center;
}

.conn-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  border-radius: 999px;
  padding: 4px 12px;
  font-family: 'DM Mono', monospace;
}

.conn-badge.connected {
  background: var(--green-50);
  color: var(--green-600);
  border: 1px solid var(--green-100);
}

.conn-badge.connecting {
  background: var(--amber-50);
  color: var(--amber-600);
  border: 1px solid rgba(186,117,23,0.2);
}

.conn-badge.disconnected {
  background: var(--red-50);
  color: var(--red-600);
  border: 1px solid var(--red-100);
}

.conn-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.conn-dot.pulse {
  animation: dotPulse 1.2s infinite;
}

@keyframes dotPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ── Panel ── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Phase badge ── */
.phase-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blue-600);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 1rem;
}

.phase-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-400);
}

.panel-instruction {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 1.25rem;
  line-height: 1.55;
}

.panel-instruction strong {
  color: var(--text);
  font-weight: 600;
}

/* ── Mode select ── */
.mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 1.25rem;
}

.mode-card {
  border: 1.5px solid var(--border-md);
  border-radius: var(--radius-lg);
  background: var(--surface-2);
  padding: 1.25rem 1rem;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}

.mode-card:hover {
  border-color: var(--blue-200);
  background: var(--blue-50);
}

.mode-card:active { transform: scale(0.97); }

.mode-icon {
  font-size: 32px;
  margin-bottom: 8px;
  line-height: 1;
}

.mode-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}

.mode-desc {
  font-size: 12px;
  color: var(--text-3);
  line-height: 1.4;
}

/* ── Multiplayer lobby ── */
.mp-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 1.25rem;
}

.mp-btn {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border-md);
  background: var(--surface-2);
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: border-color 0.15s, background 0.15s;
}

.mp-btn:hover {
  border-color: var(--blue-200);
  background: var(--blue-50);
}

.mp-btn-icon { font-size: 20px; }
.mp-btn-text { flex: 1; }
.mp-btn-title { font-weight: 600; color: var(--text); }
.mp-btn-sub   { font-size: 12px; color: var(--text-3); margin-top: 1px; }

/* ── Room code display ── */
.room-code-box {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  margin-bottom: 1rem;
}

.room-code-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.room-code {
  font-size: 32px;
  font-weight: 600;
  font-family: 'DM Mono', monospace;
  color: var(--purple-600);
  letter-spacing: 0.12em;
}

.room-code-hint {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 6px;
}

/* ── Text input ── */
.input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 1rem;
}

.text-input {
  flex: 1;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-md);
  background: var(--surface);
  font-family: 'DM Mono', monospace;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  outline: none;
  transition: border-color 0.15s;
}

.text-input:focus { border-color: var(--blue-400); }
.text-input::placeholder { color: var(--text-3); text-transform: none; font-family: 'DM Sans', sans-serif; font-size: 14px; letter-spacing: 0; }

/* ── Waiting / lobby state ── */
.waiting-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 0 1rem;
  gap: 12px;
}

.waiting-dots {
  display: flex;
  gap: 6px;
}

.waiting-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--blue-300, var(--blue-400));
  animation: waitBounce 1.2s infinite;
}

.waiting-dot:nth-child(2) { animation-delay: 0.2s; }
.waiting-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes waitBounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

.waiting-text {
  font-size: 14px;
  color: var(--text-2);
  text-align: center;
}

/* ── Opponent ready pill ── */
.opp-ready-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  background: var(--green-50);
  color: var(--green-600);
  border: 1px solid var(--green-100);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 0.75rem;
}

/* ── Hand buttons (Phase 1 picker) ── */
.hands-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.hand-btn {
  flex: 1;
  max-width: 130px;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--border-md);
  background: var(--surface-2);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: border-color 0.15s, background 0.15s, transform 0.1s, box-shadow 0.15s;
  position: relative;
}

.hand-btn:hover:not(.selected) {
  border-color: var(--blue-200);
  background: var(--blue-50);
}

.hand-btn:active { transform: scale(0.96); }

.hand-btn.selected {
  border: 2px solid var(--blue-400);
  background: var(--blue-50);
  box-shadow: 0 0 0 3px rgba(55, 138, 221, 0.18);
}

.hand-btn.selected .hand-label {
  color: var(--blue-600);
  font-weight: 600;
}

.hand-btn.selected .hand-icon {
  filter: drop-shadow(0 2px 6px rgba(55, 138, 221, 0.35));
}

.sel-badge {
  position: absolute;
  top: 8px; right: 8px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--blue-400);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'DM Mono', monospace;
}

.hand-icon  { font-size: 40px; line-height: 1; }

.hand-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.03em;
}

/* ── Confirm button ── */
.confirm-btn {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius-md);
  border: none;
  background: var(--text);
  color: var(--bg);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  letter-spacing: -0.01em;
}

.confirm-btn:hover:not(:disabled) { opacity: 0.85; }
.confirm-btn:active:not(:disabled) { transform: scale(0.99); }
.confirm-btn:disabled { opacity: 0.3; cursor: default; }

/* ── Arena (Phase 2 layout) ── */
.arena {
  display: grid;
  grid-template-columns: 1fr 40px 1fr;
  align-items: start;
  gap: 12px;
  margin-bottom: 1.25rem;
}

.arena-side { text-align: center; }

.arena-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.arena-hands {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.arena-hand {
  flex: 1;
  max-width: 86px;
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 26px;
  cursor: default;
  transition: all 0.2s;
}

.arena-hand .sm-label {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-3);
  font-family: 'DM Mono', monospace;
}

.arena-hand.droppable {
  cursor: pointer;
  border-color: var(--border-md);
}

.arena-hand.droppable:hover {
  border-color: var(--red-400);
  background: var(--red-50);
}

.arena-hand.droppable:hover .sm-label { color: var(--red-600); }

.arena-hand.cpu-revealed {
  border-color: var(--amber-400);
  background: var(--amber-50);
}

.arena-hand.cpu-revealed .sm-label { color: var(--amber-600); }

/* Opponent's revealed hands in multiplayer */
.arena-hand.opp-revealed {
  border-color: var(--purple-400);
  background: var(--purple-50);
}

.arena-hand.opp-revealed .sm-label { color: var(--purple-600); }

.arena-hand.final-win {
  border: 2px solid var(--green-400);
  background: var(--green-50);
}

.arena-hand.final-win .sm-label { color: var(--green-600); }

.arena-hand.final-lose {
  border: 2px solid var(--red-400);
  background: var(--red-50);
}

.arena-hand.final-lose .sm-label { color: var(--red-600); }

.arena-hand.removed {
  opacity: 0.25;
  border-style: dashed;
}

.vs-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-3);
  font-family: 'DM Mono', monospace;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 28px;
}

.drop-hint {
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
  margin-bottom: 1rem;
  line-height: 1.5;
}

/* ── Result ── */
.result-box {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-2);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1rem;
}

.result-emoji { font-size: 40px; margin-bottom: 10px; }

.result-text {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.result-sub  { font-size: 14px; color: var(--text-2); }

.cpu-reveal-note {
  font-size: 12px;
  color: var(--text-3);
  text-align: center;
  margin-bottom: 1.25rem;
  font-family: 'DM Mono', monospace;
}

/* ── Action buttons ── */
.action-row {
  display: flex;
  gap: 10px;
}

.btn {
  flex: 1;
  padding: 11px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-md);
  background: transparent;
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--text);
  transition: background 0.12s, transform 0.1s;
}

.btn:hover { background: var(--surface-2); }
.btn:active { transform: scale(0.98); }

.btn.primary {
  background: var(--text);
  color: var(--bg);
  border-color: transparent;
}

.btn.primary:hover { opacity: 0.85; }

/* ── Selection summary chips ── */
.selection-summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 1rem;
  min-height: 28px;
}

.sel-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--blue-800);
}

.sel-plus { font-size: 13px; color: var(--text-3); }

/* ── Error message ── */
.error-msg {
  font-size: 13px;
  color: var(--red-600);
  background: var(--red-50);
  border: 1px solid var(--red-100);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 1rem;
  text-align: center;
}

/* ── Rematch waiting ── */
.rematch-note {
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
  margin-top: 0.75rem;
  font-style: italic;
}