/* -- CSS variables -- light & dark ----------------------------------------- */
:root {
  --bg: #e8edf2;
  --bg2: #dde3ea;
  --surface: rgba(255,255,255,0.72);
  --surface-solid: #ffffff;
  --surface2: rgba(255,255,255,0.5);
  --border: rgba(0,0,0,0.08);
  --border2: rgba(0,0,0,0.12);
  --pink: #e91e8c;
  --blue: #1e88e5;
  --pink-light: rgba(233,30,140,0.12);
  --blue-light: rgba(30,136,229,0.12);
  --text: #1a1f2e;
  --text-muted: #6b7280;
  --text-dim: #9ca3af;
  --green: #10b981;
  --red: #ef4444;
  --radius: 14px;
  --font: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --shadow: 0 2px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --sidebar-bg: rgba(248,250,252,0.95);
  --sidebar-hover: rgba(30,136,229,0.07);
  --sidebar-active: rgba(30,136,229,0.13);
  --sidebar-width: 300px;
  --code-bg: #1a1f2e;
  --code-color: #a8d8a8;
}

[data-theme="dark"] {
  --bg: #0f1117;
  --bg2: #161a24;
  --surface: rgba(22,26,36,0.85);
  --surface-solid: #1e2333;
  --surface2: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.11);
  --pink: #f06292;
  --blue: #42a5f5;
  --pink-light: rgba(240,98,146,0.15);
  --blue-light: rgba(66,165,245,0.15);
  --text: #e8edf4;
  --text-muted: #8892a4;
  --text-dim: #4d5668;
  --green: #34d399;
  --red: #f87171;
  --shadow: 0 2px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --sidebar-bg: rgba(15,17,23,0.97);
  --sidebar-hover: rgba(66,165,245,0.08);
  --sidebar-active: rgba(66,165,245,0.15);
  --code-bg: #0d1117;
  --code-color: #7ee787;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  transition: background .25s, color .25s;
}

[data-theme="light"] body {
  background: linear-gradient(145deg, #dde4ec 0%, #e8edf4 40%, #eae8f0 100%);
}

/* -- App shell ----------------------------------------------------------- */
.app-shell {
  display: flex;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* -- Sidebar ------------------------------------------------------------- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  transition: width .22s cubic-bezier(.4,0,.2,1), opacity .22s;
  backdrop-filter: blur(16px);
}

.sidebar.collapsed {
  width: 0;
  opacity: 0;
  pointer-events: none;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 14px 10px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-dim);
}

.btn-new-chat {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.btn-new-chat:hover { background: #1976d2; box-shadow: 0 2px 8px rgba(30,136,229,0.3); }

.sidebar-search {
  padding: 6px 8px;
  flex-shrink: 0;
}
.sidebar-search input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  color: var(--text);
  padding: 6px 10px;
  font-size: 12px;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color .15s;
  outline: none;
}
.sidebar-search input:focus { border-color: var(--blue); }
.sidebar-search input::placeholder { color: var(--text-dim); }

.sidebar-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sidebar-list::-webkit-scrollbar { width: 3px; }
.sidebar-list::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.sidebar-empty {
  padding: 24px 12px;
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.7;
}

.chat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 9px;
  cursor: pointer;
  transition: background .12s;
  min-width: 0;
  position: relative;
}
.chat-item:hover { background: var(--sidebar-hover); }
.chat-item.active { background: var(--sidebar-active); }

.chat-item-icon {
  font-size: 14px;
  flex-shrink: 0;
  opacity: 0.8;
}

.chat-item-content {
  flex: 1;
  min-width: 0;
}
.chat-item-title {
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
  position: relative;
}
.chat-item-title[title]:hover::after {
  content: attr(title);
  position: absolute;
  left: 0;
  top: calc(100% + 6px);
  background: var(--surface-solid);
  color: var(--text);
  border: 1px solid var(--border2);
  border-radius: 7px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 400;
  white-space: normal;
  max-width: 220px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  pointer-events: none;
  line-height: 1.5;
}
.chat-item-meta {
  font-size: 10.5px;
  color: var(--text-dim);
  margin-top: 1px;
}

.chat-item-rename, .chat-item-del {
  opacity: 0;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 4px;
  font-size: 13px;
  transition: all .12s;
  flex-shrink: 0;
}
.chat-item:hover .chat-item-rename, .chat-item:hover .chat-item-del { opacity: 1; }
.chat-item-rename:hover { background: rgba(59,130,246,0.12); color: var(--blue); }
.chat-item-del:hover { background: rgba(239,68,68,0.12); color: var(--red); }

/* -- Header -------------------------------------------------------------- */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 12px;
  transition: background .25s;
  position: relative;
}

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

.btn-sidebar-toggle {
  width: 32px; height: 32px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
  flex-shrink: 0;
  font-size: 15px;
}
.btn-sidebar-toggle:hover { background: var(--surface-solid); color: var(--text); }

.logo-mark {
  width: 36px; height: 36px;
  position: relative;
  flex-shrink: 0;
}
.logo-mark .lm-circle {
  position: absolute;
  width: 26px; height: 26px;
  background: var(--pink);
  border-radius: 50%;
  bottom: 0; left: 0;
}
.logo-mark .lm-square {
  position: absolute;
  width: 22px; height: 22px;
  background: var(--blue);
  border-radius: 4px;
  top: 0; right: 0;
}
.logo-mark .lm-cut {
  position: absolute;
  width: 14px; height: 14px;
  background: var(--bg);
  border-radius: 50%;
  bottom: 4px; right: 4px;
  transition: background .25s;
}

.header-title {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
  color: var(--text);
}

.header-badge {
  font-size: 10px;
  background: var(--blue-light);
  color: var(--blue);
  border-radius: 20px;
  padding: 2px 10px;
  font-weight: 500;
  letter-spacing: 0.3px;
}

.header-right { display: flex; align-items: center; gap: 8px; }

/* Dark mode toggle */
.btn-theme {
  width: 34px; height: 34px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 9px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  transition: all .15s;
  flex-shrink: 0;
}
.btn-theme:hover { background: var(--surface-solid); color: var(--text); box-shadow: var(--shadow); }

.btn-docs {
  height: 34px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 9px;
  color: var(--text-muted);
  cursor: pointer;
  display: flex; align-items: center; gap: 6px;
  padding: 0 14px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  transition: all .15s;
  flex-shrink: 0;
  white-space: nowrap;
}
.btn-docs:hover { background: var(--surface-solid); color: var(--text); box-shadow: var(--shadow); }

/* -- Backend status ------------------------------------------------------- */
#backend-status {
  padding: 5px 20px;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: background .25s;
}
.bs-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.bs-loading { background: var(--text-dim); }
.bs-ok { background: var(--green); }
.bs-err { background: var(--red); }

/* -- Main content area ---------------------------------------------------- */
.main-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
  min-width: 0;
  max-width: 100%;
}

/* -- Messages ------------------------------------------------------------- */
#messages {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  scroll-behavior: smooth;
  min-height: 0;
}
#messages::-webkit-scrollbar { width: 4px; }
#messages::-webkit-scrollbar-thumb { background: rgba(128,128,128,0.2); border-radius: 4px; }

/* -- Welcome screen ------------------------------------------------------- */
.welcome {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 40px 24px 20px;
  text-align: center;
  animation: fadeUp .4s ease forwards;
  opacity: 0;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

/* Hero section */
.welcome-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.welcome-logo {
  width: 64px; height: 64px;
  position: relative;
  flex-shrink: 0;
}
.welcome-logo .lm-circle {
  position: absolute;
  width: 46px; height: 46px;
  background: var(--pink);
  border-radius: 50%;
  bottom: 0; left: 0;
  box-shadow: 0 4px 24px rgba(233,30,140,0.35);
}
.welcome-logo .lm-square {
  position: absolute;
  width: 40px; height: 40px;
  background: var(--blue);
  border-radius: 8px;
  top: 0; right: 0;
  box-shadow: 0 4px 24px rgba(30,136,229,0.35);
}
.welcome-logo .lm-cut {
  position: absolute;
  width: 24px; height: 24px;
  background: var(--bg);
  border-radius: 50%;
  bottom: 7px; right: 7px;
  transition: background .25s;
}

.welcome-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text);
  line-height: 1.2;
  margin: 0;
}

.welcome-sub {
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.6;
  max-width: 480px;
  margin: 0;
}

/* Center textarea — hero input */
.welcome-input-wrap {
  width: 100%;
  max-width: 660px;
  background: var(--surface-solid);
  border: 1.5px solid var(--border);
  border-radius: 20px;
  padding: 18px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  cursor: text;
  transition: border-color .2s, box-shadow .2s;
}
[data-theme="dark"] .welcome-input-wrap {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,255,255,0.1);
  box-shadow: 0 8px 40px rgba(0,0,0,0.3), 0 2px 8px rgba(0,0,0,0.2);
}
.welcome-input-wrap:focus-within {
  border-color: var(--blue);
  box-shadow: 0 8px 40px rgba(30,136,229,0.15), 0 0 0 3px rgba(30,136,229,0.08);
}
.welcome-textarea {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.65;
  resize: none;
  min-height: 80px;
  max-height: 340px;
  overflow-y: auto;
  box-sizing: border-box;
}
.welcome-textarea::placeholder {
  color: var(--text-dim);
  font-size: 15px;
}
.welcome-input-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 4px;
  border-top: 1px solid var(--border);
}
.welcome-input-hint {
  font-size: 11px;
  color: var(--text-dim);
  display: flex;
  gap: 14px;
}
.welcome-input-hint kbd {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 0 4px;
  font-size: 10px;
  font-family: var(--font-mono);
}
.welcome-send-btn {
  width: 38px; height: 38px;
  background: var(--blue);
  border: none;
  border-radius: 12px;
  color: #fff;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, transform .1s;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(30,136,229,0.35);
}
.welcome-send-btn:disabled {
  background: var(--surface2);
  color: var(--text-dim);
  cursor: default;
  box-shadow: none;
}
.welcome-send-btn:not(:disabled):hover {
  background: #1565c0;
  transform: scale(1.05);
}

/* Chips section */
.welcome-chips-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 100%;
}

.welcome-chips-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-dim);
}

.welcome-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  max-width: 760px;
}

/* New pill-style chips */
.wchip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 13px;
  font-size: 12.5px;
  font-family: inherit;
  color: var(--text-muted);
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
}
.wchip:hover {
  background: var(--surface-solid);
  border-color: var(--blue);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}
.wchip--ask {
  border-color: rgba(233,30,140,0.15);
}
.wchip--ask:hover {
  border-color: var(--pink);
}

/* Chip hover tooltip */
.chip-tooltip {
  position: fixed;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 12.5px;
  color: var(--text);
  line-height: 1.55;
  max-width: 340px;
  min-width: 240px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  z-index: 1000;
  pointer-events: none;
  animation: fadeUp .12s ease forwards;
}
.chip-tooltip-title {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  font-size: 13px;
}
.chip-tooltip-desc {
  color: var(--text-muted);
  margin-bottom: 6px;
}
.chip-tooltip-bullets {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 6px;
}
.chip-tooltip-bullet {
  display: flex;
  gap: 6px;
  color: var(--text-muted);
}
.chip-tooltip-bullet::before {
  content: "▸";
  color: var(--pink);
  flex-shrink: 0;
}
.chip-tooltip-footer {
  color: var(--text-dim);
  font-size: 11.5px;
  border-top: 1px solid var(--border);
  padding-top: 6px;
  margin-top: 4px;
}

/* -- Suggestion cards ----------------------------------------------------- */
.suggestions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 1200px;
  margin-top: 2px;
}

.suggestions-section {
  display: flex;
  flex-direction: column;
  gap: 7px;
  width: 100%;
}

.suggestions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  width: 100%;
}

.suggestion-chip {
  background: var(--surface);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 14px;
  cursor: pointer;
  transition: all .2s;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: var(--shadow);
}
.suggestion-chip:hover {
  background: var(--surface-solid);
  border-color: var(--blue);
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(30,136,229,0.08);
  transform: translateY(-2px);
}
.sc-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
  color: var(--text);
  letter-spacing: -0.2px;
}
.sc-icon {
  width: 26px; height: 26px;
  background: var(--blue-light);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
}
.sc-desc {
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
  font-weight: 400;
  display: none;
}
.suggestion-chip:hover .sc-desc { display: block; }
.sc-bullets { display: none; flex-direction: column; gap: 3px; }
.suggestion-chip:hover .sc-bullets { display: flex; }
.sc-bullet {
  display: flex;
  gap: 6px;
  align-items: flex-start;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}
.sc-bullet::before {
  content: "▸";
  color: var(--pink);
  flex-shrink: 0;
  margin-top: 1px;
  font-size: 10px;
}
.suggestion-chip:hover .sc-bullet::before { color: var(--blue); }

/* Discussion chips — pink accent, compact */
.suggestion-chip--discuss {
  border-color: rgba(233,30,140,0.15);
  background: linear-gradient(135deg, var(--surface), rgba(233,30,140,0.03));
  padding: 12px 14px;
}
.suggestion-chip--discuss:hover {
  border-color: var(--pink);
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(233,30,140,0.08);
}
.suggestion-chip--discuss .sc-icon {
  background: var(--pink-light);
  width: 26px; height: 26px; font-size: 13px;
}
.suggestion-chip--discuss .sc-header {
  font-size: 12.5px;
}

/* Section labels */
.suggestions-section-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-muted);
  text-align: center;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.suggestions-section-label--questions {}

.suggestions-grid--questions {
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.suggestions-grid--questions .suggestion-chip--discuss {
  padding: 10px 12px;
  gap: 0;
  border-radius: 10px;
}

.suggestions-grid--questions .sc-header {
  font-size: 12px;
  font-weight: 500;
  gap: 7px;
}

.suggestions-grid--questions .sc-icon {
  width: 22px; height: 22px;
  font-size: 12px;
  border-radius: 6px;
  flex-shrink: 0;
}
.sc-footer {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
  border-top: 1px solid var(--border);
  padding-top: 6px;
  margin-top: 2px;
  display: none;
}
.suggestion-chip:hover .sc-footer {
  display: block;
}

/* -- Messages ------------------------------------------------------------- */
.msg {
  display: flex;
  gap: 10px;
  animation: fadeUp .22s ease forwards;
  opacity: 0;
}
@keyframes fadeUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.msg.user { flex-direction: row-reverse; }

.avatar {
  width: 32px; height: 32px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
  font-weight: 700;
}
.avatar.ai {
  background: linear-gradient(135deg, var(--pink), var(--blue));
  color: #fff;
  font-size: 10px;
}
.avatar.user {
  background: var(--surface-solid);
  border: 1px solid var(--border2);
  color: var(--text-muted);
  font-size: 11px;
}

.bubble {
  max-width: min(72%, 680px);
  border-radius: var(--radius);
  padding: 12px 16px;
  line-height: 1.65;
  word-break: break-word;
  overflow-wrap: break-word;
  font-size: 13.5px;
  box-shadow: var(--shadow);
  min-width: 0;
  overflow: hidden;
}
.msg.user .bubble {
  background: linear-gradient(135deg, var(--blue), #1565c0);
  color: #fff;
}
.msg.ai .bubble {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  color: var(--text);
}

.bubble p { margin-bottom: 8px; }
.bubble p:last-child { margin-bottom: 0; }
.bubble strong { font-weight: 600; }
.bubble em { opacity: 0.8; font-style: italic; }
.bubble code {
  background: var(--blue-light);
  border: 1px solid rgba(30,136,229,0.15);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--blue);
}
.msg.user .bubble code { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.3); color: #fff; }

.bubble pre {
  background: var(--code-bg);
  border-radius: 10px;
  padding: 14px;
  overflow-x: auto;
  margin: 10px 0;
  position: relative;
  max-width: 100%;
  box-sizing: border-box;
}
.bubble pre code {
  background: none; border: none; padding: 0;
  font-size: 12px; color: var(--code-color);
  font-family: var(--font-mono);
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
}
.bubble pre .copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.6);
  border-radius: 5px; padding: 3px 9px;
  font-size: 10px; cursor: pointer;
  font-family: var(--font-mono);
  transition: all .15s;
}
.bubble pre .copy-btn:hover { background: rgba(255,255,255,0.2); color: #fff; }
.bubble pre .copy-btn.copied { border-color: var(--green); color: var(--green); }

/* -- XML action buttons --------------------------------------------------- */
.xml-actions-wrapper {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}
.xml-actions-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.xml-process-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.xml-actions-btns {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.xml-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 16px; border-radius: 10px;
  font-family: var(--font); font-size: 12.5px;
  cursor: pointer; transition: all .18s cubic-bezier(.4,0,.2,1);
  text-decoration: none; border: 1.5px solid transparent; font-weight: 600;
  letter-spacing: .2px; white-space: nowrap;
}
.xml-btn:disabled { opacity: .55; cursor: default; }

/* ⬇ Download — solid blue */
.xml-btn.primary {
  background: var(--blue); color: #fff;
  border-color: var(--blue);
  box-shadow: 0 2px 10px rgba(30,136,229,0.25);
}
.xml-btn.primary:hover {
  background: #1976d2; border-color: #1976d2;
  box-shadow: 0 4px 18px rgba(30,136,229,0.38);
  transform: translateY(-1px);
}

/* 🔗 Open in Builder — green outline */
.xml-btn.open-builder {
  background: transparent;
  border-color: rgba(46,125,50,0.45);
  color: #2e7d32;
}
[data-theme="dark"] .xml-btn.open-builder {
  color: #66bb6a; border-color: rgba(102,187,106,0.35);
}
.xml-btn.open-builder:hover {
  background: rgba(46,125,50,0.08);
  border-color: #2e7d32;
  box-shadow: 0 2px 12px rgba(46,125,50,0.18);
  transform: translateY(-1px);
}
[data-theme="dark"] .xml-btn.open-builder:hover {
  background: rgba(102,187,106,0.1); border-color: #66bb6a;
}

/* ▶ Upload & Open in eTask — pink/magenta accent */
.xml-btn.secondary {
  background: transparent;
  border-color: rgba(233,30,140,0.4);
  color: var(--pink);
}
[data-theme="dark"] .xml-btn.secondary {
  border-color: rgba(240,98,146,0.35);
}
.xml-btn.secondary:hover {
  background: var(--pink-light);
  border-color: var(--pink);
  box-shadow: 0 2px 12px rgba(233,30,140,0.18);
  transform: translateY(-1px);
}

/* -- Thinking ------------------------------------------------------------- */
.thinking { display: flex; gap: 10px; align-items: flex-start; animation: fadeUp .2s ease forwards; }
.thinking-dots {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex; gap: 5px; align-items: center;
  box-shadow: var(--shadow);
}
.thinking-dots span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--blue); opacity: 0.4;
  animation: pulse 1.2s infinite;
}
.thinking-dots span:nth-child(2) { animation-delay: .2s; }
.thinking-dots span:nth-child(3) { animation-delay: .4s; }
@keyframes pulse { 0%,80%,100% { opacity:.3; transform:scale(.9); } 40% { opacity:1; transform:scale(1.1); } }

/* -- Input area ----------------------------------------------------------- */
.input-area {
  border-top: 1px solid var(--border);
  padding: 14px 20px;
  background: var(--surface);
  backdrop-filter: blur(12px);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background .25s;
}
/* Chat view: hide bottom input-area on welcome screen */
.main-col.welcome-view .input-area { display: none; }
/* Welcome view: hide #welcome when in chat mode (already removed from DOM, but safety) */
.llm-selector {
  display: flex;
  gap: 12px;
  align-items: center;
  font-size: 13px;
  color: var(--text-dim);
  padding: 6px 0;
}
.llm-selector label {
  font-weight: 500;
  color: var(--text);
}
.llm-selector select {
  background: var(--surface-solid);
  border: 1.5px solid var(--border2);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  padding: 6px 10px;
  outline: none;
  cursor: pointer;
  transition: border-color .15s, background .25s, color .25s;
}
.llm-selector select:hover {
  border-color: var(--blue);
}
.llm-selector select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.llm-selector.hidden {
  display: none;
}
.input-row { display: flex; gap: 10px; align-items: flex-end; }
#user-input {
  flex: 1;
  background: var(--surface-solid);
  border: 1.5px solid var(--border2);
  border-radius: 12px;
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  padding: 10px 14px;
  resize: none;
  outline: none;
  min-height: 44px;
  max-height: 180px;
  line-height: 1.55;
  transition: border-color .15s, box-shadow .15s, background .25s, color .25s;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.05);
}
#user-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(30,136,229,0.1); }
#user-input::placeholder { color: var(--text-dim); }
#user-input::-webkit-scrollbar { width: 3px; }
#user-input::-webkit-scrollbar-thumb { background: var(--border2); }

#send-btn {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--blue);
  border: none; color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(30,136,229,0.35);
}
#send-btn:hover:not(:disabled) { background: #1976d2; box-shadow: 0 4px 16px rgba(30,136,229,0.45); transform: translateY(-1px); }
#send-btn:disabled { background: var(--border2); color: var(--text-dim); cursor: not-allowed; box-shadow: none; }
#send-btn svg { width: 18px; height: 18px; }

.input-hint { font-size: 11px; color: var(--text-dim); display: flex; gap: 16px; padding: 0 2px; }
.input-hint kbd {
  background: var(--surface-solid); border: 1px solid var(--border2);
  border-radius: 4px; padding: 0 5px; font-size: 10px;
  font-family: var(--font-mono); color: var(--text-muted);
}

/* Streaming cursor */
.streaming-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--blue);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 0.7s infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* XML streaming block */
.xml-block-streaming {
  background: var(--code-bg);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--code-color);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
  margin: 8px 0;
  max-height: 400px;
  overflow-y: auto;
  overflow-x: hidden;
  line-height: 1.5;
  max-width: 100%;
  box-sizing: border-box;
}
.xml-block-streaming::-webkit-scrollbar { width: 4px; }
.xml-block-streaming::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

.error-bubble {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: 10px; padding: 10px 14px;
  color: var(--red); font-size: 12px;
  display: flex; align-items: center; gap: 8px;
}

/* Friendly LLM error card */
.bubble.error-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 12px;
}
.error-card-msg {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13.5px; line-height: 1.55; color: var(--text);
}
.error-card-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.error-card-actions {
  display: flex; gap: 8px; flex-wrap: wrap;
  padding-top: 2px;
}
.error-card-btn {
  font-size: 12px; font-weight: 500;
  padding: 6px 13px; border-radius: 7px; border: none;
  cursor: pointer; transition: opacity .15s, transform .1s;
  line-height: 1;
}
.error-card-btn:active { transform: scale(0.97); }
.error-card-btn.primary {
  background: var(--blue); color: #fff;
}
.error-card-btn.primary:hover { opacity: 0.88; }
.error-card-btn.secondary {
  background: var(--surface3, var(--border));
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.error-card-btn.secondary:hover { color: var(--text); border-color: var(--text-muted); }

/* -- Docs modal ---------------------------------------------------------- */
.docs-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  animation: fadeIn .15s ease;
}
.docs-overlay.open { display: flex; align-items: stretch; justify-content: flex-end; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.docs-panel {
  width: min(1200px, 95vw);
  background: var(--surface-solid);
  display: flex; flex-direction: column;
  box-shadow: -8px 0 40px rgba(0,0,0,0.2);
  animation: slideIn .2s cubic-bezier(.4,0,.2,1);
}
@keyframes slideIn { from { transform: translateX(40px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

.docs-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 12px;
}
.docs-header-title {
  font-weight: 600; font-size: 15px; color: var(--text);
  display: flex; align-items: center; gap: 8px;
}
.docs-close {
  width: 32px; height: 32px;
  background: var(--surface2); border: 1px solid var(--border2);
  border-radius: 8px; color: var(--text-muted);
  cursor: pointer; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
}
.docs-close:hover { background: var(--surface-solid); color: var(--text); }

.docs-body {
  flex: 1; overflow-y: auto; padding: 28px 48px;
  font-size: 14px; line-height: 1.75; color: var(--text);
}
.docs-body::-webkit-scrollbar { width: 10px; }
.docs-body::-webkit-scrollbar-track { background: var(--surface2); }
.docs-body::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 5px;
  border: 2px solid var(--surface-solid);
}
.docs-body::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* Markdown rendering inside docs */
.docs-body h1 { font-size: 26px; font-weight: 700; letter-spacing: -.5px; margin: 0 0 8px; color: var(--text); scroll-margin-top: 20px; }
.docs-body h2 { font-size: 19px; font-weight: 600; margin: 32px 0 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border); color: var(--text); scroll-margin-top: 20px; }
.docs-body h3 { font-size: 15px; font-weight: 600; margin: 22px 0 8px; color: var(--text); scroll-margin-top: 20px; }
.docs-body h4 { font-size: 13.5px; font-weight: 600; margin: 16px 0 6px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .4px; scroll-margin-top: 20px; }
.docs-body p { margin: 0 0 12px; }
.docs-body ul, .docs-body ol { margin: 0 0 12px 20px; }
.docs-body li { margin-bottom: 4px; }
.docs-body code {
  background: var(--blue-light); border: 1px solid rgba(30,136,229,0.15);
  border-radius: 4px; padding: 1px 6px;
  font-family: var(--font-mono); font-size: 12px; color: var(--blue);
}
.docs-body pre {
  background: var(--code-bg); border-radius: 10px;
  padding: 14px 16px; overflow-x: auto; margin: 12px 0;
}
.docs-body pre code {
  background: none; border: none; padding: 0;
  font-size: 12px; color: var(--code-color); white-space: pre;
}
.docs-body blockquote {
  border-left: 3px solid var(--blue); margin: 12px 0;
  padding: 8px 14px; background: var(--blue-light); border-radius: 0 6px 6px 0;
  color: var(--text-muted);
}
.docs-body hr { border: none; border-top: 1px solid var(--border); margin: 24px 0; }
.docs-body strong { font-weight: 600; }
.docs-body em { font-style: italic; opacity: .85; }
.docs-body a { color: var(--blue); text-decoration: none; cursor: pointer; }
.docs-body a:hover { text-decoration: underline; }

.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(30,136,229,0.35);
  display: none;
  align-items: center;
  justify-content: center;
  transition: all .2s;
  z-index: 10;
}
.back-to-top:hover {
  background: #1976d2;
  box-shadow: 0 6px 24px rgba(30,136,229,0.5);
  transform: translateY(-2px);
}
.back-to-top.visible { display: flex; }
.docs-body table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 13px; }
.docs-body th { background: var(--surface2); font-weight: 600; text-align: left; padding: 8px 12px; border: 1px solid var(--border2); }
.docs-body td { padding: 7px 12px; border: 1px solid var(--border); }
.docs-body tr:nth-child(even) td { background: rgba(0,0,0,0.02); }
[data-theme="dark"] .docs-body tr:nth-child(even) td { background: rgba(255,255,255,0.02); }

.docs-loading {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; padding: 60px 0; color: var(--text-muted);
}
.docs-loading-spinner {
  width: 32px; height: 32px; border-radius: 50%;
  border: 3px solid var(--border2); border-top-color: var(--blue);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.docs-error { padding: 32px; text-align: center; color: var(--red); }

/* -- Scroll buttons ------------------------------------------------------- */
.scroll-buttons {
  position: absolute;
  bottom: 108px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 10;
  /* Grouped pill-style container */
  background: var(--surface-solid);
  border: 1px solid var(--border2);
  border-radius: 22px;
  padding: 4px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s;
}
.scroll-buttons.has-visible {
  opacity: 1;
  pointer-events: auto;
}
.scroll-btn {
  width: 32px;
  height: 32px;
  border-radius: 18px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  transition: all .15s;
  opacity: 0;
  pointer-events: none;
}
.scroll-btn.visible {
  opacity: 1;
  pointer-events: auto;
}
.scroll-btn:hover {
  background: var(--blue);
  color: white;
  border-radius: 18px;
}

/* -- Responsive ----------------------------------------------------------- */
@media (max-width: 1100px) {
  .suggestions-grid { grid-template-columns: repeat(3, 1fr); }
  .suggestions-grid--questions { grid-template-columns: repeat(4, 1fr); }
}

/* Mobile menu — hidden globally, shown only via JS on mobile */
.mobile-menu-dropdown { display: none; }

@media (max-width: 768px) {
  /* Layout */
  .suggestions-grid { grid-template-columns: 1fr 1fr; }
  .suggestions-grid--questions { grid-template-columns: 1fr 1fr; }
  .sidebar { position: fixed; top: 0; left: 0; bottom: 0; z-index: 100; width: var(--sidebar-width) !important; }
  .sidebar.collapsed { transform: translateX(-100%); width: var(--sidebar-width) !important; opacity: 1; }
  .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 99; }
  .sidebar-overlay.visible { display: block; }
  .scroll-buttons { bottom: 80px; right: 16px; }

  /* Header — schovaj Docs a Theme button, ukáž three-dots menu */
  .btn-docs { display: none; }
  .btn-theme { display: none; }
  .btn-mobile-menu { display: flex !important; }

  /* Messages — menší padding, bubble širšie */
  #messages { padding: 12px; gap: 12px; }
  .bubble { max-width: 88%; font-size: 13px; padding: 10px 13px; }
  .bubble pre { font-size: 11px; padding: 10px; }
  .bubble pre code { font-size: 11px; }

  /* Welcome screen */
  .welcome h1 { font-size: 24px; }
  .welcome .tagline { font-size: 14px; }
  .suggestions { gap: 14px; }
  .suggestions-section-label { font-size: 12px; }

  /* Input area */
  .input-row { padding: 10px 12px; }

  /* XML blocks */
  .xml-block-streaming { font-size: 10.5px; }
  .xml-collapsible { margin: 8px 0; }

  /* Chips — no hover expand on mobile */
  .sc-desc, .sc-bullets, .sc-footer { display: none !important; }

  /* Welcome hero on mobile */
  .welcome { padding: 24px 16px 12px; gap: 20px; }
  .welcome-title { font-size: 26px; }
  .welcome-sub { font-size: 13px; }
  .welcome-chips-row { gap: 6px; }
  .wchip { font-size: 12px; padding: 6px 11px; }

  /* Header compact */
  header { padding: 10px 14px; }
  .header-badge { display: none; }

  /* Three-dots mobile dropdown */
  .mobile-menu-dropdown {
    position: fixed;
    top: 56px;
    right: 12px;
    background: var(--surface-solid);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px;
    flex-direction: column;
    gap: 4px;
    z-index: 500;
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
    min-width: 190px;
    animation: fadeUp .15s ease forwards;
    display: none;
  }
  .mobile-menu-dropdown.visible { display: flex; }
  .mobile-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 8px;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    text-align: left;
    width: 100%;
    transition: background .15s;
  }
  .mobile-menu-item:hover { background: var(--surface); }
  .mobile-menu-item .mi-icon { font-size: 16px; flex-shrink: 0; }
}
/* ── Collapsible XML blocks ───────────────────────────────── */
.xml-collapsible {
  margin: 12px 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.xml-collapsible-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg2);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

.xml-collapse-label { flex: 1; }

.xml-pre-preview {
  margin: 0 !important;
  border-radius: 0 !important;
  border: none !important;
  position: relative;
  max-height: 7em;
  overflow-y: hidden;
  transition: max-height 0.3s ease, overflow-y 0s;
}

.xml-pre-preview::-webkit-scrollbar {
  width: 4px;
}

.xml-pre-preview::-webkit-scrollbar-thumb {
  background: var(--border2);
  border-radius: 2px;
}

.xml-rest-code::before {
  content: '';
  display: block;
}

.xml-show-more {
  display: block;
  width: 100%;
  padding: 6px 14px;
  background: var(--bg2);
  border: none;
  border-top: 1px solid var(--border);
  color: var(--blue);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
}

.xml-show-more:hover { background: var(--blue-light); }

.copy-btn.inline {
  position: static;
  margin-left: auto;
  font-size: 11px;
  padding: 2px 8px;
  opacity: 1;
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-muted);
  border-radius: 4px;
  cursor: pointer;
}

.copy-btn.inline:hover { background: var(--blue-light); color: var(--blue); }
/* ── Settings gear button ─────────────────────────────────────────────────── */
.btn-settings {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border: none; border-radius: 10px;
  background: var(--surface); color: var(--text-muted);
  cursor: pointer; transition: background .18s, color .18s, box-shadow .18s;
  font-size: 17px;
}
.btn-settings:hover { background: var(--surface-solid); color: var(--text); box-shadow: var(--shadow); }
.btn-settings svg { display: block; }

.settings-badge {
  position: absolute; top: 3px; right: 3px;
  width: 8px; height: 8px;
  background: var(--red); border-radius: 50%;
  font-size: 0;
}

/* ── Settings overlay ────────────────────────────────────────────────────── */
.settings-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 900;
  justify-content: flex-end;
  backdrop-filter: blur(2px);
}
.settings-overlay.open { display: flex; }

.settings-panel {
  width: 480px; max-width: 100vw;
  height: 100%;
  background: var(--surface-solid);
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideInRight .22s cubic-bezier(.4,0,.2,1);
  overflow: hidden;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

.settings-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.settings-header-title { font-size: 16px; font-weight: 700; color: var(--text); }
.settings-close {
  width: 30px; height: 30px; border: none; border-radius: 8px;
  background: transparent; color: var(--text-muted); cursor: pointer; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
}
.settings-close:hover { background: var(--surface2); color: var(--text); }

.settings-body {
  flex: 1; overflow-y: auto; padding: 16px 20px;
  display: flex; flex-direction: column; gap: 24px;
}

.settings-section {
  display: flex; flex-direction: column; gap: 10px;
}
.settings-section-title {
  font-size: 13px; font-weight: 700; color: var(--text);
  text-transform: uppercase; letter-spacing: .6px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.settings-section-desc {
  font-size: 12px; color: var(--text-muted); line-height: 1.5;
}
.settings-section-desc code {
  background: var(--blue-light); color: var(--blue);
  padding: 1px 5px; border-radius: 4px; font-size: 11px;
  font-family: var(--font-mono);
}

.settings-field {
  display: flex; flex-direction: column; gap: 5px;
}
.settings-field-row {
  flex-direction: row; align-items: center; justify-content: space-between;
}
.settings-field-row label { flex: 1; min-width: 0; }
.settings-field-row input,
.settings-field-row select { width: 180px; flex-shrink: 0; }

.settings-field label {
  font-size: 12px; font-weight: 500; color: var(--text);
  display: flex; align-items: center; gap: 6px;
}
.settings-field input[type="text"],
.settings-field input[type="password"],
.settings-field input[type="number"],
.settings-field select {
  padding: 8px 10px; border-radius: 8px;
  border: 1px solid var(--border2); background: var(--surface);
  color: var(--text); font-size: 13px; font-family: var(--font);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.settings-field input:focus,
.settings-field select:focus {
  border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-light);
}
.settings-field input::placeholder { color: var(--text-dim); }

/* Key status dot */
.key-status::before {
  content: ''; display: inline-block;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-dim);
}
.key-status.set::before   { background: var(--green); }
.key-status.unset::before { background: var(--red); }

/* Toggle switch */
.settings-toggle { position: relative; display: inline-block; width: 40px; height: 22px; }
.settings-toggle input { opacity: 0; width: 0; height: 0; }
.settings-toggle-slider {
  position: absolute; inset: 0; cursor: pointer;
  background: var(--border2); border-radius: 22px;
  transition: background .2s;
}
.settings-toggle-slider::before {
  content: ''; position: absolute;
  width: 16px; height: 16px; left: 3px; top: 3px;
  background: white; border-radius: 50%;
  transition: transform .2s;
}
.settings-toggle input:checked + .settings-toggle-slider { background: var(--blue); }
.settings-toggle input:checked + .settings-toggle-slider::before { transform: translateX(18px); }

/* Footer */
.settings-footer {
  display: flex; align-items: center; justify-content: flex-end; gap: 12px;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.settings-save-status { font-size: 12px; color: var(--text-muted); flex: 1; }
.settings-save-status.ok  { color: var(--green); }
.settings-save-status.err { color: var(--red); }

.btn-settings-save {
  padding: 9px 20px; border-radius: 10px;
  background: var(--blue); color: white;
  border: none; font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background .15s, box-shadow .15s;
}
.btn-settings-save:hover { background: #1976d2; box-shadow: 0 2px 8px rgba(30,136,229,.3); }
.btn-settings-save:disabled { opacity: .6; cursor: default; }

@media (max-width: 540px) {
  .suggestions-grid { grid-template-columns: 1fr 1fr; }
  .suggestions-grid--questions { grid-template-columns: 1fr 1fr; }

  .settings-panel { width: 100vw; }
  .settings-field-row { flex-direction: column; align-items: flex-start; }
  .settings-field-row input, .settings-field-row select { width: 100%; }
}

/* ── Settings Advanced collapsible ──────────────────────────────────────── */
.settings-advanced {
  border-top: 1px solid var(--border);
  padding-top: 4px;
}
.settings-advanced-toggle {
  width: 100%; text-align: left;
  background: none; border: none; cursor: pointer;
  padding: 10px 2px;
  font-size: 12px; font-weight: 600;
  color: var(--text-muted);
  display: flex; align-items: center; gap: 8px;
  transition: color .15s;
  font-family: var(--font);
  text-transform: uppercase; letter-spacing: .5px;
}
.settings-advanced-toggle:hover { color: var(--text); }
.settings-advanced-arrow {
  font-size: 9px;
  transition: transform .2s;
  display: inline-block;
}
.settings-advanced-toggle.open .settings-advanced-arrow { transform: rotate(90deg); }
.settings-advanced-body {
  display: flex; flex-direction: column; gap: 20px;
  padding-top: 8px;
}

/* ── User avatar button & dropdown menu ─────────────────────────────── */
.btn-user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: #238636; border: 2px solid #30363d;
  color: #fff; font-size: 0.8rem; font-weight: 700;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s, transform 0.15s;
}
.btn-user-avatar:hover { border-color: #58a6ff; transform: scale(1.05); }
.btn-user-avatar.unauthenticated { background: #30363d; color: #8b949e; }


/* ── Auth overlay ──────────────────────────────────────────────────── */
.auth-overlay {
  position: fixed; inset: 0; z-index: 900;
  background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.auth-panel {
  background: #161b22; border: 1px solid #30363d; border-radius: 16px;
  padding: 2rem; width: 100%; max-width: 380px; position: relative;
}
.auth-close {
  position: absolute; top: 1rem; right: 1rem;
  background: none; border: none; color: #8b949e; font-size: 1.1rem;
  cursor: pointer; line-height: 1;
}
.auth-close:hover { color: #e1e4e8; }
.auth-logo {
  width: 40px; height: 40px; position: relative; margin: 0 auto 1rem;
}
.auth-title { text-align: center; font-size: 1.2rem; color: #e1e4e8; margin-bottom: 0.25rem; }
.auth-subtitle { text-align: center; font-size: 0.85rem; color: #8b949e; margin-bottom: 1.25rem; }

.auth-google-btn {
  display: flex; align-items: center; justify-content: center; gap: 0.6rem;
  width: 100%; padding: 0.7rem; background: #fff; color: #3c4043;
  border: none; border-radius: 8px; font-size: 0.9rem; font-weight: 500;
  cursor: pointer; text-decoration: none; transition: background 0.15s;
  margin-bottom: 1rem;
}
.auth-google-btn:hover { background: #f0f0f0; }

.auth-divider {
  display: flex; align-items: center; gap: 0.75rem;
  color: #8b949e; font-size: 0.8rem; margin-bottom: 1rem;
}
.auth-divider::before, .auth-divider::after { content: ''; flex: 1; height: 1px; background: #30363d; }

.auth-tabs { display: flex; gap: 0; margin-bottom: 1rem; border-bottom: 1px solid #30363d; }
.auth-tab {
  flex: 1; padding: 0.5rem; background: none; border: none;
  color: #8b949e; font-size: 0.875rem; cursor: pointer;
  border-bottom: 2px solid transparent; transition: all 0.2s;
}
.auth-tab.active { color: #58a6ff; border-bottom-color: #58a6ff; }

.auth-input {
  display: block; width: 100%; padding: 0.6rem 0.85rem;
  background: #0d1117; border: 1px solid #30363d; border-radius: 6px;
  color: #e1e4e8; font-size: 0.9rem; margin-bottom: 0.75rem;
  transition: border-color 0.2s;
}
.auth-input:focus { outline: none; border-color: #58a6ff; }

.auth-submit {
  width: 100%; padding: 0.7rem; background: #238636; color: #fff;
  border: none; border-radius: 8px; font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: background 0.2s;
}
.auth-submit:hover { background: #2ea043; }

.auth-alert {
  padding: 0.6rem 0.75rem; border-radius: 6px; font-size: 0.82rem;
  margin-bottom: 0.75rem;
  background: rgba(248,81,73,.1); border: 1px solid rgba(248,81,73,.3); color: #f85149;
}
.auth-alert.success {
  background: rgba(35,134,54,.1); border-color: rgba(35,134,54,.3); color: #3fb950;
}
.auth-tos-label {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 0.82rem; color: #8b949e; margin-bottom: 0.85rem; cursor: pointer;
}
.auth-tos-label input[type="checkbox"] { margin-top: 2px; flex-shrink: 0; cursor: pointer; }
.auth-tos-label a { color: #58a6ff; text-decoration: none; }
.auth-tos-label a:hover { text-decoration: underline; }
.auth-marketing-label {
  background: linear-gradient(135deg, rgba(88,166,255,0.06), rgba(233,30,140,0.04));
  border: 1px solid rgba(88,166,255,0.2);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 0.85rem !important;
}
.auth-marketing-label strong { color: #58a6ff; }

/* Danger zone in user drawer */
.drawer-danger-zone {
  margin-top: 8px;
  border-top: 1px solid var(--border);
  padding-top: 8px;
}
.drawer-danger-toggle {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 11px;
  cursor: pointer;
  padding: 4px 0;
  font-family: inherit;
  transition: color .15s;
}
.drawer-danger-toggle:hover { color: var(--text-muted); }
.drawer-danger-content {
  display: none;
  margin-top: 8px;
  padding: 10px 12px;
  background: rgba(248,81,73,0.05);
  border: 1px solid rgba(248,81,73,0.2);
  border-radius: 8px;
}
.drawer-danger-zone.open .drawer-danger-content { display: block; }
.drawer-danger-zone.open .drawer-danger-toggle { color: #f85149; }
.drawer-danger-content p {
  font-size: 11.5px;
  color: var(--text-muted);
  margin-bottom: 8px;
  line-height: 1.5;
}
.drawer-danger-content button {
  background: none;
  border: 1px solid rgba(248,81,73,0.4);
  color: #f85149;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: all .15s;
}
.drawer-danger-content button:hover {
  background: rgba(248,81,73,0.1);
  border-color: #f85149;
}

/* ── User profile drawer ─────────────────────────────────────────────── */
.user-avatar-wrap { position: relative; }

.btn-user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: #238636; border: 2px solid #30363d;
  color: #fff; font-size: 0.8rem; font-weight: 700;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s, transform 0.15s;
  flex-shrink: 0;
}
.btn-user-avatar:hover { border-color: #58a6ff; transform: scale(1.05); }
.btn-user-avatar.unauthenticated { background: #30363d; color: #8b949e; }

/* Drawer overlay */
.user-drawer-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 9000;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(3px);
}
.user-drawer-overlay.open {
  display: flex; align-items: stretch; justify-content: flex-end;
}

/* Drawer panel */
.user-drawer {
  width: 280px;
  background: var(--surface-solid, #161b22);
  border-left: 1px solid var(--border, #30363d);
  display: flex; flex-direction: column;
  box-shadow: -8px 0 32px rgba(0,0,0,0.4);
  animation: slideInRight .2s cubic-bezier(.4,0,.2,1);
}
@keyframes slideInRight {
  from { transform: translateX(280px); opacity: 0; }
  to   { transform: translateX(0);     opacity: 1; }
}

.user-drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border, #30363d);
  flex-shrink: 0;
}
.user-drawer-title {
  font-weight: 600; font-size: 0.9rem; color: var(--text, #e1e4e8);
}
.user-drawer-close {
  width: 30px; height: 30px;
  background: var(--surface2, #21262d); border: 1px solid var(--border2, #30363d);
  border-radius: 6px; color: var(--text-muted, #8b949e);
  cursor: pointer; font-size: 15px;
  display: flex; align-items: center; justify-content: center;
  transition: all .15s;
}
.user-drawer-close:hover { color: var(--text, #e1e4e8); background: var(--surface-solid, #161b22); }

.user-drawer-body {
  flex: 1; padding: 1.25rem 1rem; display: flex; flex-direction: column; gap: 0.25rem;
  overflow-y: auto;
}

.user-drawer-name  { font-weight: 600; font-size: 1rem; color: var(--text, #e1e4e8); margin-bottom: 2px; }
.user-drawer-email { font-size: 0.8rem; color: var(--text-muted, #8b949e); margin-bottom: 0.75rem; }
.user-drawer-tokens {
  font-size: 0.82rem; padding: 0.5rem 0.75rem;
  background: var(--surface2, #21262d); border-radius: 8px;
  border: 1px solid var(--border, #30363d);
  margin-bottom: 1rem;
}

.user-drawer-divider { height: 1px; background: var(--border, #30363d); margin: 0.5rem 0; }

.user-drawer-item {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.6rem 0.75rem; border-radius: 8px;
  color: var(--text-muted, #8b949e); text-decoration: none;
  font-size: 0.875rem; cursor: pointer;
  transition: background 0.15s, color 0.15s;
  border: none; background: none; width: 100%; text-align: left;
}
.user-drawer-item:hover { background: var(--surface2, #21262d); color: var(--text, #e1e4e8); }
.user-drawer-item.danger:hover { background: rgba(248,81,73,0.1); color: #f85149; }

/* ── Stop button ─────────────────────────────────────────────────────── */
#stop-btn {
  width: 38px; height: 38px; border-radius: 10px;
  background: #da3633; border: none; color: #fff;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background 0.15s, transform 0.1s;
  flex-shrink: 0;
}
#stop-btn:hover { background: #f85149; transform: scale(1.05); }

/* ── Streaming indicator in sidebar ─────────────────────────────────── */
.stream-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: #58a6ff;
  border-radius: 50%;
  animation: streamPulse 1.2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes streamPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.75); }
}

.chat-item-streaming .chat-item-icon {
  display: flex; align-items: center; justify-content: center;
}

.generating-label {
  font-size: 0.7rem;
  color: #58a6ff;
  font-weight: 400;
  opacity: 0.85;
}

.chat-item-streaming {
  border-left: 2px solid #58a6ff;
}