/* ── Design tokens (mirror main site) ───────────────────────────────────── */
:root {
  --bg-base:       #08080f;
  --bg-surface:    #0f0f1a;
  --bg-card:       #13131f;
  --bg-input:      #1a1a2e;
  --accent:        #7c3aed;
  --accent-hover:  #6d28d9;
  --accent-cyan:   #06b6d4;
  --text-primary:  #f0f0ff;
  --text-sec:      #9090b0;
  --text-muted:    #5a5a7a;
  --border:        rgba(124,58,237,0.18);
  --radius:        10px;
  --font-display:  'Orbitron', 'Segoe UI', sans-serif;
  --font-body:     'Inter', 'Segoe UI', system-ui, sans-serif;
  --sidebar-w:     220px;
  --transition:    0.2s cubic-bezier(0.4,0,0.2,1);
}

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

body {
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── Light theme override ─────────────────────────────────────────────────── */
body[data-theme="light"] {
  --bg-base:    #f0f0ff;
  --bg-surface: #e8e8f8;
  --bg-card:    #ffffff;
  --bg-input:   #eeeeff;
  --border:     rgba(124,58,237,0.15);
  --text-primary: #1a1a2e;
  --text-sec:   #4a4a6a;
  --text-muted: #8888aa;
}

/* ── Login overlay ───────────────────────────────────────────────────────── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}
.overlay.hidden { display: none; }

.box {
  background: var(--bg-card);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 20px;
  padding: 36px 40px;
  width: min(90vw, 400px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
  animation: modal-in 0.3s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes modal-in {
  from { transform: scale(0.88) translateY(16px); opacity: 0; }
  to   { transform: scale(1)    translateY(0);    opacity: 1; }
}

.login-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-sub {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.04em;
}

.box input {
  width: 100%;
  padding: 11px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.box input::placeholder { color: var(--text-muted); }
.box input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(6,182,212,0.12);
}

.big-btn {
  width: 100%;
  padding: 13px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-cyan));
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
}
.big-btn:hover  { opacity: 0.9; transform: translateY(-1px); }
.big-btn:active { transform: translateY(0); }

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 14px 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-bottom: 1px solid var(--border);
}

.back-link {
  font-family: var(--font-display);
  font-size: 11px;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color var(--transition);
}
.back-link:hover { color: var(--accent-cyan); }

.room-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.sidebar-section-label {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 10px 12px 4px;
}

#userList {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.user-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 6px;
  font-size: 13px;
  transition: background var(--transition);
  cursor: default;
}
.user-entry:hover { background: rgba(124,58,237,0.08); }

.user-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #10b981;
  flex-shrink: 0;
}

.self {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.me {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

#meName {
  font-size: 13px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-dot {
  font-size: 10px;
  letter-spacing: 0.04em;
}
.status-dot.connected    { color: #10b981; }
.status-dot.disconnected { color: var(--text-muted); }

#settingsBtn {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  flex-shrink: 0;
}
#settingsBtn:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

/* ── Chat panel ──────────────────────────────────────────────────────────── */
.chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-base);
}

.chat-header {
  padding: 12px 20px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  color: var(--text-primary);
}

#messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ── Message rows ────────────────────────────────────────────────────────── */
.message {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 6px;
  line-height: 1.5;
  transition: background var(--transition);
  animation: msg-in 0.18s ease both;
}
.message:hover { background: rgba(255,255,255,0.03); }

@keyframes msg-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.message .time {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
  min-width: 42px;
}

.message .nick {
  font-weight: 600;
  font-size: 13px;
  flex-shrink: 0;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.message .nick::after { content: ':'; margin-left: 1px; opacity: 0.5; }

.message .text {
  font-size: 14px;
  color: var(--text-primary);
  word-break: break-word;
  flex: 1;
}

/* ── System messages ─────────────────────────────────────────────────────── */
.system-message {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 2px 8px;
  font-size: 12px;
  color: var(--text-muted);
  animation: msg-in 0.18s ease both;
}

.system-message.warn  { color: #f59e0b; }
.system-message.emote { color: var(--accent-cyan); font-style: italic; }

.system-message .time { font-size: 11px; min-width: 42px; flex-shrink: 0; }

/* ── Compact style ───────────────────────────────────────────────────────── */
body[data-msgstyle="compact"] .message,
body[data-msgstyle="compact"] .system-message { padding: 1px 8px; }
body[data-msgstyle="compact"] .message .text  { font-size: 12px; }

/* ── Chat footer ─────────────────────────────────────────────────────────── */
.chat-footer {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
}

#input {
  flex: 1;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
#input::placeholder { color: var(--text-muted); }
#input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(6,182,212,0.10);
}

#send {
  padding: 10px 20px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}
#send:hover  { background: var(--accent-hover); transform: translateY(-1px); }
#send:active { transform: translateY(0); }

/* ── Modal / Settings ────────────────────────────────────────────────────── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 800;
}
.modal.hidden { display: none; }

.modal-content {
  background: var(--bg-card);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: 16px;
  padding: 28px 32px;
  width: min(90vw, 340px);
  box-shadow: 0 20px 56px rgba(0,0,0,0.5);
  animation: modal-in 0.25s cubic-bezier(0.34,1.56,0.64,1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--text-primary);
}

.close-btn {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.close-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }

.settings {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.settings label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.settings input[type="text"],
.settings input:not([type="color"]):not([type="range"]),
.settings select {
  padding: 8px 12px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition);
}
.settings input:focus,
.settings select:focus { border-color: var(--accent-cyan); }
.settings select { cursor: pointer; }
.settings select option { background: var(--bg-card); }

.settings input[type="color"] {
  width: 36px; height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  background: none;
  padding: 2px;
}

.settings input[type="range"] { accent-color: var(--accent); cursor: pointer; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 560px) {
  .sidebar { width: 160px; }
  .box { padding: 24px 20px; }
}

@media (max-width: 400px) {
  .sidebar { display: none; }
}

/* ── Chat header buttons ─────────────────────────────────────────────────── */
.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.chat-header-btns { display: flex; gap: 6px; }
.hdr-btn {
  padding: 4px 11px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}
.hdr-btn:hover { background: rgba(124,58,237,0.15); color: var(--text-sec); }

/* ── Login hint ──────────────────────────────────────────────────────────── */
.login-hint {
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.04em;
  margin-top: -4px;
}

/* ── Room panel ──────────────────────────────────────────────────────────── */
.room-panel {
  padding: 4px 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.room-btn {
  width: 100%;
  text-align: left;
  padding: 5px 10px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 6px;
  border: 1px solid transparent;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.room-btn:hover { background: rgba(124,58,237,0.1); color: var(--text-sec); }
.room-btn.active {
  background: rgba(6,182,212,0.1);
  border-color: rgba(6,182,212,0.25);
  color: var(--accent-cyan);
}
.room-btn.active::before { content: '# '; }
.room-btn-new {
  border-style: dashed;
  border-color: var(--border);
  margin-top: 2px;
}

/* ── Self area ───────────────────────────────────────────────────────────── */
.me-top { display: flex; align-items: center; gap: 6px; }
.self-emoji { font-size: 18px; line-height: 1; }

/* ── Game share button in footer ─────────────────────────────────────────── */
.footer-icon-btn {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  font-size: 18px;
  background: rgba(124,58,237,0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform var(--transition);
}
.footer-icon-btn:hover { background: rgba(124,58,237,0.22); transform: scale(1.05); }

/* ── Rich game card inside messages ─────────────────────────────────────── */
.cs-game-card {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 7px;
  background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(6,182,212,0.08));
  border: 1px solid rgba(124,58,237,0.28);
  border-radius: 8px;
  font-size: 12px;
  flex-wrap: wrap;
  margin: 2px 0;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.cs-game-card:hover { border-color: rgba(6,182,212,0.4); box-shadow: 0 2px 12px rgba(0,0,0,0.3); }
.cs-gc-icon { font-size: 16px; flex-shrink: 0; }
.cs-gc-name {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  text-transform: capitalize;
  min-width: 50px;
}
.cs-gc-play, .cs-gc-split {
  padding: 3px 8px;
  font-family: var(--font-display);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 5px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  flex-shrink: 0;
}
.cs-gc-play { background: #7c3aed; color: #fff; }
.cs-gc-play:hover { background: #6d28d9; transform: translateY(-1px); }
.cs-gc-split { background: rgba(6,182,212,0.15); color: #06b6d4; border: 1px solid rgba(6,182,212,0.25); }
.cs-gc-split:hover { background: rgba(6,182,212,0.25); transform: translateY(-1px); }

/* ── Tic-Tac-Toe in chat ─────────────────────────────────────────────────── */
.cs-ttt {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  margin: 6px 0;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: msg-in 0.2s ease both;
}
.ttt-header {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  color: var(--text-sec);
  display: flex;
  align-items: center;
  gap: 8px;
}
.ttt-status { color: var(--accent-cyan); }
.ttt-board {
  display: grid;
  grid-template-columns: repeat(3, 40px);
  gap: 3px;
}
.ttt-cell {
  width: 40px; height: 40px;
  font-size: 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), transform 0.12s;
}
.ttt-cell:hover:not(:disabled) { background: rgba(124,58,237,0.15); transform: scale(1.06); }
.ttt-cell:disabled, .ttt-cell.taken { cursor: default; }
.ttt-reset {
  padding: 5px 16px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: rgba(124,58,237,0.14);
  border: 1px solid rgba(124,58,237,0.28);
  border-radius: var(--radius);
  color: #a78bfa;
  cursor: pointer;
  transition: background var(--transition);
}
.ttt-reset:hover { background: rgba(124,58,237,0.24); }

/* ── Emoji picker ────────────────────────────────────────────────────────── */
.emoji-pick-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  max-height: 88px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  padding: 2px;
}
.emoji-opt {
  font-size: 18px;
  cursor: pointer;
  border-radius: 6px;
  border: 2px solid transparent;
  padding: 3px;
  text-align: center;
  background: var(--bg-input);
  transition: border-color 0.15s, background 0.15s, transform 0.12s;
}
.emoji-opt:hover { transform: scale(1.15); border-color: rgba(255,255,255,0.2); }
.emoji-opt.selected { border-color: var(--accent-cyan); background: rgba(6,182,212,0.12); }

/* ── Settings footer ─────────────────────────────────────────────────────── */
.settings-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}
.settings-ext-link {
  font-size: 11px;
  color: var(--accent-cyan);
  text-decoration: none;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  opacity: 0.8;
  transition: opacity 0.15s;
}
.settings-ext-link:hover { opacity: 1; }
.settings-save { width: auto; padding: 10px 24px; }

/* ── Play & Chat overlay ─────────────────────────────────────────────────── */
.pc-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  background: var(--bg-base);
  overflow: hidden;
}
.pc-overlay.hidden { display: none; }

.pc-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.pc-icon { font-size: 18px; }
.pc-title {
  flex: 1;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pc-actions { display: flex; gap: 8px; }
.pc-btn {
  padding: 5px 13px;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--text-sec);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: background var(--transition), color var(--transition);
}
.pc-btn:hover { background: rgba(124,58,237,0.2); color: var(--text-primary); }
.pc-btn-close:hover { background: rgba(239,68,68,0.18); color: #f87171; border-color: rgba(239,68,68,0.4); }

.pc-body {
  flex: 1;
  min-height: 0;
  display: flex;
  overflow: hidden;
}

.pc-game {
  flex: 1;
  min-width: 0;
  border: none;
  background: #000;
  display: block;
}

.pc-chat-panel {
  width: 280px;
  flex-shrink: 0;
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  overflow: hidden;
}

.pc-chat-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 7px 12px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: var(--bg-card);
  flex-shrink: 0;
}
.pc-room-tag { color: var(--accent-cyan); font-size: 10px; }

.pc-msgs {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.pc-msgs .message { font-size: 12px; }
.pc-msgs .system-message { font-size: 11px; }

.pc-input-row {
  display: flex;
  gap: 6px;
  padding: 7px 9px;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
  flex-shrink: 0;
}
#pcInput {
  flex: 1;
  padding: 7px 11px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition);
}
#pcInput::placeholder { color: var(--text-muted); }
#pcInput:focus { border-color: var(--accent-cyan); }
#pcSend {
  width: 34px; height: 34px;
  font-size: 16px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition);
}
#pcSend:hover { background: var(--accent-hover); }

@media (max-width: 600px) {
  .pc-body { flex-direction: column; }
  .pc-chat-panel { width: 100%; height: 200px; border-left: none; border-top: 1px solid var(--border); }
}

/* ── Reduced motion ──────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}