:root {
  --bg: #0b0d10;
  --panel: #14171c;
  --panel-alt: #1b1f26;
  --border: #262b33;
  --text: #e7e9ec;
  --muted: #8a909b;
  --accent: #4f8cff;
  --accent-dim: #2e4a86;
  --danger: #ff5f5f;
  --radius: 10px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

.hidden { display: none !important; }

.screen {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---------- Join screen ---------- */
#joinScreen {
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.join-card {
  width: 100%;
  max-width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
}

.logo {
  font-family: var(--mono);
  letter-spacing: 2px;
  font-size: 22px;
  margin: 0 0 6px;
  color: var(--accent);
}

.tagline {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 26px;
}

.join-card label {
  display: block;
  text-align: left;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--muted);
  margin: 14px 0 6px;
}

.join-card input {
  width: 100%;
  padding: 11px 12px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.join-card input:focus {
  border-color: var(--accent);
}

.hint {
  text-align: left;
  font-size: 11.5px;
  color: var(--muted);
  margin: 6px 0 0;
}

#connectBtn {
  width: 100%;
  margin-top: 22px;
  padding: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 1px;
  font-size: 13px;
  cursor: pointer;
}

#connectBtn:hover { background: #3d78e8; }

.error {
  color: var(--danger);
  font-size: 12.5px;
  min-height: 16px;
  margin-top: 12px;
}

/* ---------- Chat screen ---------- */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.room-line {
  color: var(--muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 13px;
  font-weight: 600;
}
#roomName { color: var(--accent); font-weight: 700; text-transform: none; letter-spacing: 0; }

.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.clear-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 12.5px;
  cursor: pointer;
  white-space: nowrap;
}
.clear-btn:hover { color: var(--text); border-color: var(--accent); }

.user-badge {
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  font-family: var(--mono);
}

#membersBtn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  line-height: 1;
}

.members-panel {
  position: absolute;
  right: 12px;
  top: 60px;
  width: 220px;
  max-height: 320px;
  overflow-y: auto;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  z-index: 10;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
}

.members-panel-title {
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 8px;
  margin-top: 14px;
}
.members-panel-title:first-child { margin-top: 0; }

.panel-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text);
  padding: 3px 0;
}
.panel-row span:last-child { color: var(--accent); font-weight: 600; }

#membersList {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
}

#membersList li {
  padding: 4px 0;
  color: var(--text);
}

#leaveBtn {
  width: 100%;
  margin-top: 14px;
  padding: 9px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  cursor: pointer;
  font-size: 12.5px;
}
#leaveBtn:hover { color: var(--text); border-color: var(--danger); }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.start-marker {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  margin: 10px 0;
}

.msg {
  max-width: 72%;
  padding: 9px 12px;
  border-radius: 12px;
  background: var(--panel-alt);
  align-self: flex-start;
  font-size: 14px;
  line-height: 1.4;
  word-wrap: break-word;
}

.msg.mine {
  align-self: flex-end;
  background: var(--accent-dim);
}

.msg .meta {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 3px;
}

.send-form {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 12px 16px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  position: relative;
}

.send-form #attachBtn,
.send-form #emojiBtn {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel-alt);
  font-size: 17px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.send-form #attachBtn:disabled { opacity: .5; cursor: not-allowed; }

.send-form input {
  flex: 1;
  padding: 11px 14px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.send-form input:focus { border-color: var(--accent); }

.send-form button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}

.send-form button:hover { background: #3d78e8; }

.send-form input:disabled,
.send-form button:disabled { opacity: .5; cursor: not-allowed; }

#creditsBadge {
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 3px 10px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
}

.out-of-credits {
  padding: 10px 16px;
  background: #3a2414;
  border-top: 1px solid #5c3e1e;
  color: #ffcf8f;
  font-size: 13px;
  text-align: center;
}

.out-of-credits a { color: #ffb454; font-weight: 600; }

/* ---------- Attachment preview above the input ---------- */
.attach-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 16px;
  background: var(--panel-alt);
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text);
}
.attach-preview button {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
}
.attach-preview button:hover { color: var(--danger); }

/* ---------- Emoji picker ---------- */
.emoji-panel {
  position: absolute;
  bottom: 60px;
  left: 60px;
  width: 236px;
  max-height: 168px;
  overflow-y: auto;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  z-index: 20;
}
.emoji-item {
  background: transparent;
  border: none;
  font-size: 19px;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 8px;
  line-height: 1;
}
.emoji-item:hover { background: var(--panel); }

/* ---------- Message attachments ---------- */
.msg-image {
  display: block;
  max-width: 220px;
  max-height: 220px;
  border-radius: 10px;
  margin-top: 4px;
  object-fit: cover;
}
.msg-file {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  padding: 8px 10px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
}
.msg-file:hover { border-color: var(--accent); }
.msg-text { margin-top: 4px; }

/* ---------- Buy-credits package cards ---------- */
.pkg-list { display: flex; flex-direction: column; gap: 10px; margin-top: 10px; }
.pkg-card {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel-alt); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px;
}
.pkg-card .pkg-name { font-weight: 600; flex: 1; }
.pkg-card .pkg-credits { color: var(--muted); font-size: 13px; }
.pkg-card .pkg-price { font-weight: 700; color: var(--accent); margin-left: 10px; }
.pkg-card button {
  padding: 8px 16px; background: var(--accent); border: none; color: #fff; border-radius: 8px; cursor: pointer; font-weight: 600;
}
.pkg-card button:disabled { background: var(--panel); color: var(--muted); cursor: not-allowed; }

@media (max-width: 480px) {
  .msg { max-width: 85%; }
}