:root {
  --bg: #111111;
  --bg2: #1a1a1a;
  --bg3: #262626;
  --accent: #444444;
  --text: #eaeaea;
  --text2: #888888;
  --border: #303030;
  --self-bg: #1e3a5f;
  --self-border: #3b82f6;
  --radius: 12px;
  --sidebar-w: 260px;
  --header-h: 57px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f2f2f2;
    --bg2: #ffffff;
    --bg3: #e4e4e4;
    --accent: #c8c8c8;
    --text: #111111;
    --text2: #666666;
    --border: #d4d4d4;
    --self-bg: #dbeafe;
    --self-border: #3b82f6;
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: var(--app-height, 100dvh);
  display: flex;
  overflow: hidden;
}

/* Sidebar */
.sidebar-wrap {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

#sidebar {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#sidebar-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

#btn-close-sidebar { display: none; }

#sidebar-header h1 {
  font-size: 1.1rem;
  font-weight: 700;
  flex: 1;
}

#btn-new-session {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
}

#btn-new-session:hover { background: var(--accent); }

#session-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

#sidebar-footer {
  position: relative;
  padding: 8px;
  border-top: 1px solid var(--border);
}

#user-menu-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 0.82rem;
  text-align: left;
  padding: 6px 8px;
  border-radius: 8px;
}

#user-menu-btn:hover { background: var(--bg3); color: var(--text); }

#user-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#user-menu-caret {
  flex-shrink: 0;
  font-size: 1rem;
  transition: transform 0.15s;
}

#user-menu-btn.open #user-menu-caret { transform: rotate(90deg); }

#user-menu {
  display: none;
  flex-direction: column;
  position: absolute;
  bottom: calc(100% + 4px);
  left: 8px;
  right: 8px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  z-index: 60;
}

#user-menu.open { display: flex; }

#user-menu button,
#user-menu a {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  background: none;
  color: var(--text);
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
  font-family: inherit;
}

#user-menu button:hover,
#user-menu a:hover { background: var(--bg3); }

.session-item {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.session-item:hover { background: var(--bg3); color: var(--text); }
.session-item.active { background: var(--bg3); color: var(--text); }
.session-item-new { border: 1px dashed var(--border); margin-bottom: 4px; }
.session-item .session-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-item .btn-del { opacity: 0; font-size: 0.75rem; color: var(--text2); background: none; border: none; cursor: pointer; padding: 2px 4px; }
.session-item:hover .btn-del { opacity: 1; }

/* Main area */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#chat-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg2);
}

#session-title {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--text);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#session-title:focus { outline: 2px solid var(--border); border-radius: 4px; }

#btn-manage-parts {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  white-space: nowrap;
}

#btn-manage-parts:hover { background: var(--accent); }

#btn-autotitle, #btn-share {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.8rem;
  white-space: nowrap;
}

#btn-autotitle:hover, #btn-share:hover { background: var(--accent); }
#btn-autotitle:disabled { opacity: 0.5; cursor: default; }

#coach-area { margin-bottom: 8px; }


#coach-area.open {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 12px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--self-border);
  border-radius: 10px;
  font-size: 0.88rem;
  color: var(--text2);
  line-height: 1.5;
}

#coach-area.open .coach-text { flex: 1; }

.coach-dots {
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 2px 0;
}

.coach-dots span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text2);
  animation: coach-pulse 1.2s ease-in-out infinite;
}

.coach-dots span:nth-child(2) { animation-delay: 0.2s; }
.coach-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes coach-pulse {
  0%, 80%, 100% { transform: scale(0.5); opacity: 0.3; }
  40%           { transform: scale(1);   opacity: 1;   }
}

#coach-area .btn-coach-dismiss {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0 2px;
  line-height: 1;
}

#coach-area .btn-coach-dismiss:hover { color: var(--text); }

/* Messages */
#messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.message {
  max-width: 75%;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.message.self-msg { align-self: flex-end; }
.message.part-msg { align-self: flex-start; }

.msg-meta {
  font-size: 0.72rem;
  color: var(--text2);
  padding: 0 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.msg-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.msg-bubble {
  padding: 10px 14px;
  border-radius: var(--radius);
  line-height: 1.5;
  font-size: 0.95rem;
  word-break: break-word;
  white-space: pre-wrap;
}

.message.self-msg .msg-bubble {
  background: var(--self-bg);
  border: 1px solid var(--self-border);
  border-bottom-right-radius: 4px;
}

.message.part-msg .msg-bubble {
  border-bottom-left-radius: 4px;
}

.message.self-msg .msg-meta { justify-content: flex-end; }

.msg-speaker-name {
  font-weight: 600;
  color: var(--text);
}

/* Role is secondary in messages — no background, just tinted text */
.msg-meta .part-role-badge {
  background: none;
  padding: 0;
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0;
}
.msg-meta .part-role-badge.manager     { color: #60a5fa; }
.msg-meta .part-role-badge.firefighter { color: #fb923c; }
.msg-meta .part-role-badge.exile       { color: #c084fc; }

.btn-edit-msg {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 0.72rem;
  opacity: 0;
  transition: opacity 0.15s;
  filter: grayscale(1);
}

.message:hover .btn-edit-msg { opacity: 1; }

@media (hover: none) {
  .btn-edit-msg { opacity: 1; }
}
.btn-edit-msg:hover { color: var(--text); }

.msg-edit-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg2);
}

.edit-speaker-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.edit-textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  resize: none;
  min-height: 60px;
  line-height: 1.4;
}

.edit-textarea:focus { outline: none; border-color: var(--text2); }

.edit-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}


/* Install banner */
#install-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text2);
}
#install-banner span { flex: 1; }
#install-banner button {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  white-space: nowrap;
}

/* Composer */
#composer {
  border-top: 1px solid var(--border);
  background: var(--bg2);
  padding: 12px 16px;
  padding-bottom: max(12px, env(safe-area-inset-bottom));
}

#speaker-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.speaker-btn {
  border: 2px solid transparent;
  border-radius: 20px;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg3);
  color: var(--text);
  transition: all 0.15s;
}

.speaker-btn.active {
  color: #fff;
}

.btn-add-part-quick {
  border: 2px dashed var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  background: none;
  color: var(--text2);
  transition: border-color 0.15s, color 0.15s;
}

.btn-add-part-quick:hover {
  border-color: var(--text2);
  color: var(--text);
}

.speaker-btn[data-id="self"] {
  border-color: var(--self-border);
}
.speaker-btn[data-id="self"].active {
  background: var(--self-border);
}

#compose-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}


#msg-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  resize: none;
  min-height: 42px;
  max-height: 160px;
  line-height: 1.4;
  font-family: inherit;
  transition: border-color 0.2s ease, background 0.2s ease;
}

#msg-input:focus { outline: none; }

#btn-coach, #btn-send {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  height: 42px;
  border-radius: var(--radius);
  cursor: pointer;
  flex-shrink: 0;
}

#btn-coach:hover, #btn-send:hover { background: var(--accent); }
#btn-coach:disabled, #btn-send:disabled { opacity: 0.5; cursor: default; }

#btn-coach {
  padding: 0 12px;
  font-size: 0.8rem;
  white-space: nowrap;
}

#btn-send {
  width: 42px;
  padding: 0;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Empty state */
#empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text2);
  padding: 32px;
  text-align: center;
}

#empty-state h2 { font-size: 1.4rem; color: var(--text); }
#empty-state p { max-width: 340px; line-height: 1.6; }
#welcome-tips {
  list-style: none;
  text-align: left;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.88rem;
  line-height: 1.5;
}
#welcome-tips li { padding-left: 1.2em; text-indent: -1.2em; }
#welcome-tips li::before { content: '→ '; }
#welcome-tips strong { color: var(--text); }
#welcome-tips code { font-family: monospace; font-size: 0.85em; background: var(--bg3); padding: 1px 5px; border-radius: 4px; }
#empty-state button {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 24px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  margin-top: 8px;
}

#empty-state button:hover { background: var(--accent); }

/* Modal */
#modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

#modal-overlay.open { display: flex; }

#modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  width: min(420px, 90vw);
  max-height: 80dvh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#modal h2 { font-size: 1.1rem; }

.part-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--bg);
  border-radius: 8px;
}

.part-color-dot {
  width: 16px; height: 16px;
  border-radius: 50%;
  flex-shrink: 0;
  cursor: pointer;
}

.part-row-name { flex: 1; font-weight: 600; }
.part-row-desc { font-size: 0.82rem; color: var(--text2); flex: 2; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.btn-icon {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  filter: grayscale(1);
}

.btn-icon:hover { color: var(--text); }

.add-part-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.add-part-form input, .add-part-form textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: inherit;
}

.add-part-form input:focus, .add-part-form textarea:focus {
  outline: none;
  border-color: var(--text2);
}

.add-part-form textarea { resize: vertical; min-height: 60px; }

.form-row { display: flex; gap: 8px; align-items: center; }
.form-row input[type=color] { width: 40px; height: 34px; padding: 2px; border-radius: 6px; cursor: pointer; border: 1px solid var(--border); background: var(--bg); }

.btn-primary {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
}

.btn-primary:hover { background: var(--accent); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.btn-danger {
  background: #7f1d1d;
  border: 1px solid #b91c1c;
  color: #fca5a5;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
}

.btn-danger:hover { background: #991b1b; }

.btn-menu-toggle {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
  display: none;
}

@media (max-width: 600px) {
  .btn-menu-toggle { display: block; }

  .sidebar-wrap {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 51;
    width: 100%;
    border-right: none;
    padding-top: env(safe-area-inset-top);
  }

  #sidebar {
    position: fixed;
    top: calc(var(--header-h) + env(safe-area-inset-top));
    bottom: 0;
    left: 0;
    z-index: 50;
    width: 85vw;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  #sidebar.open { transform: translateX(0); }

  #btn-close-sidebar { display: block; }

  #main { padding-top: calc(var(--header-h) + env(safe-area-inset-top)); }

  /* In chat mode, chat-header is the only top bar */
  body.in-chat #sidebar-header { display: none; }
  body.in-chat #main { padding-top: env(safe-area-inset-top); }
}


/* Mention popup */
#mention-popup {
  position: fixed;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 200;
  min-width: 160px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}

#mention-popup.open { display: flex; }

.mention-item {
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mention-item:hover, .mention-item.selected { background: var(--bg3); }

/* Part role badges */
.part-role-badge {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 1px 7px;
  border-radius: 9999px;
  white-space: nowrap;
  flex-shrink: 0;
}
.part-role-badge.manager     { background: #1e3a5f; color: #93c5fd; }
.part-role-badge.firefighter { background: #431407; color: #fdba74; }
.part-role-badge.exile       { background: #2e1065; color: #d8b4fe; }

/* Role select in part forms */
.role-select {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
}
.role-select:focus { outline: none; border-color: #3b82f6; }

/* Scrollbars */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 9999px; }
::-webkit-scrollbar-thumb:hover { background: var(--text2); }