/* ============================================================
   DULUS WEBCHAT — Premium CSS
   Manager-09: GUI & WebChat Engineer
   Brand: orange #ff6b1f, dark #07070a
   Style: Glassmorphism dark, JetBrains Mono, Archivo Black
   ============================================================ */

/* ---- Google Fonts loaded in HTML ---- */

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  /* Brand colors */
  --orange:        #ff6b1f;
  --orange-light:  #ffb347;
  --orange-dim:    rgba(255, 107, 31, 0.12);
  --orange-glow:   rgba(255, 107, 31, 0.25);

  /* Dark surfaces */
  --bg:            #07070a;
  --bg2:           #0f0f12;
  --bg3:           #15151a;
  --bg4:           #1a1a20;
  --bg5:           #22222a;

  /* Text */
  --ink:           #f0e8df;
  --ink2:          #c8c0bc;
  --dim:           #6a6470;
  --dim2:          #3a3840;

  /* Semantic */
  --green:         #7cffb5;
  --red:           #ff5a6e;
  --yellow:        #ffd166;
  --blue:          #7ab6ff;

  /* Typography */
  --mono:          'JetBrains Mono', 'Fira Code', monospace;
  --display:       'Archivo Black', 'Impact', sans-serif;

  /* Spacing */
  --radius:        4px;
  --radius-md:     6px;
  --radius-lg:     10px;

  /* Layout */
  --sidebar-w:     260px;
  --sidebar-col:   48px;
  --header-h:      56px;
  --max-msg:       760px;

  /* Transitions */
  --t-fast:        150ms ease;
  --t-base:        250ms ease;
  --t-slow:        400ms ease;
}

/* ============================================================
   RESET
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
  height: 100%;
}
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  height: 100%;
  overflow: hidden;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   SCROLLBAR
   ============================================================ */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--orange); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--orange-light); }

/* ============================================================
   FOCUS — WCAG 2.1 AA
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
  border-radius: var(--radius);
}
:focus:not(:focus-visible) { outline: none; }

/* ============================================================
   AMBIENT GRID PATTERN
   ============================================================ */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 107, 31, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 31, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
}

/* ============================================================
   APP SHELL
   ============================================================ */
#app {
  display: flex;
  height: 100dvh;
  height: 100vh;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid rgba(255, 107, 31, 0.1);
  display: flex;
  flex-direction: column;
  transition: width var(--t-base), min-width var(--t-base);
  position: relative;
  z-index: 200;
  height: 100%;
  flex-shrink: 0;
}
#sidebar.collapsed {
  width: var(--sidebar-col);
  min-width: var(--sidebar-col);
}
#sidebar.collapsed .sidebar-expanded { display: none !important; }
#sidebar:not(.collapsed) .sidebar-collapsed { display: none !important; }

/* Collapsed micro-sidebar */
.sidebar-collapsed {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  padding: 14px 0;
  gap: 8px;
}
.sidebar-icon-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--dim2);
  border-radius: var(--radius);
  color: var(--dim);
  cursor: pointer;
  transition: all var(--t-fast);
  padding: 0;
  flex-shrink: 0;
}
.sidebar-icon-btn:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 107, 31, 0.08);
}
.sidebar-collapsed .logo-btn {
  width: 32px;
  height: 32px;
  background: url(/dulus-bird.png) center / contain no-repeat;
  border: none;
  cursor: pointer;
  margin-bottom: 4px;
}
.sidebar-collapsed .spacer { flex: 1; }

/* Expanded sidebar */
.sidebar-expanded {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  flex-shrink: 0;
}
.sidebar-logo {
  width: 28px;
  height: 28px;
  background: url(/dulus-bird.png) center / contain no-repeat;
  flex-shrink: 0;
}
.sidebar-wordmark {
  font-family: var(--display);
  font-size: 13px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.sidebar-collapse-btn {
  margin-left: auto;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--dim);
  cursor: pointer;
  border-radius: var(--radius);
  transition: color var(--t-fast), background var(--t-fast);
  padding: 0;
}
.sidebar-collapse-btn:hover {
  color: var(--orange);
  background: rgba(255, 107, 31, 0.08);
}

/* Search */
.sidebar-search {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  flex-shrink: 0;
  position: relative;
}
.sidebar-search input {
  width: 100%;
  background: var(--bg3);
  color: var(--ink);
  border: 1px solid var(--dim2);
  padding: 7px 10px 7px 32px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  outline: none;
  transition: border-color var(--t-fast);
}
.sidebar-search input:focus { border-color: var(--orange); }
.sidebar-search input::placeholder { color: var(--dim); }
.sidebar-search-icon {
  position: absolute;
  left: 21px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--dim);
  pointer-events: none;
}

/* Session list */
#sessionList {
  flex: 1;
  overflow-y: auto;
  padding: 6px 8px;
}

.session-group-label {
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 10px 8px 4px;
  user-select: none;
}

.session-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--t-fast), border-left-color var(--t-fast);
  border-left: 2px solid transparent;
  margin-bottom: 1px;
  position: relative;
  user-select: none;
  min-width: 0;
}
.session-item:hover { background: rgba(255, 255, 255, 0.03); }
.session-item.active {
  background: rgba(255, 107, 31, 0.07);
  border-left-color: var(--orange);
}

.session-icon {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: var(--radius);
  background: var(--bg3);
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--dim);
  border: 1px solid var(--dim2);
  transition: border-color var(--t-fast), color var(--t-fast);
}
.session-item.active .session-icon {
  border-color: var(--orange);
  color: var(--orange);
}

.session-info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}
.session-title {
  font-size: 12px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
  line-height: 1.3;
  transition: color var(--t-fast);
}
.session-time {
  font-size: 10px;
  color: var(--dim);
  margin-top: 1px;
}
.session-item.active .session-title { color: var(--orange-light); }

.session-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--t-fast);
  flex-shrink: 0;
}
.session-item:hover .session-actions { opacity: 1; }
.session-actions button {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--dim);
  cursor: pointer;
  border-radius: 3px;
  transition: all var(--t-fast);
  padding: 0;
}
.session-actions button:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--orange);
}

/* Rename input */
.session-item.renaming .session-info,
.session-item.renaming .session-actions { display: none; }
.session-rename-input {
  flex: 1;
  background: var(--bg3);
  color: var(--ink);
  border: 1px solid var(--orange);
  padding: 4px 8px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 12px;
  outline: none;
  min-width: 0;
}

/* Sidebar bottom bar */
.sidebar-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: 8px 10px;
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}
.sidebar-bottom button {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--bg3);
  color: var(--dim);
  border: 1px solid var(--dim2);
  padding: 7px 6px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.sidebar-bottom button:hover {
  background: rgba(255, 107, 31, 0.08);
  border-color: var(--orange);
  color: var(--orange);
}

/* ============================================================
   MAIN AREA
   ============================================================ */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
}

/* ============================================================
   HEADER
   ============================================================ */
header {
  height: var(--header-h);
  padding: 0 24px;
  background: rgba(7, 7, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 107, 31, 0.1);
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 100;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.header-title {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.header-wordmark {
  font-family: var(--display);
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.header-wordmark::before {
  content: "";
  width: 26px;
  height: 26px;
  background: url(/dulus-bird.png) center / contain no-repeat;
  display: inline-block;
  flex-shrink: 0;
  filter: drop-shadow(0 0 6px rgba(255, 107, 31, 0.3));
}
.header-model-badge {
  font-size: 10px;
  color: var(--dim);
  background: var(--bg3);
  border: 1px solid var(--dim2);
  padding: 3px 8px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Status dot */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  color: var(--dim);
  white-space: nowrap;
}
.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  transition: background var(--t-base);
}
.status-dot.thinking { background: var(--orange); animation: pulse-dot 1.2s ease infinite; }
.status-dot.error    { background: var(--red); }
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 107, 31, 0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(255, 107, 31, 0); }
}

/* Header buttons */
.header-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg2);
  color: var(--dim);
  border: 1px solid var(--dim2);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.header-btn:hover {
  background: rgba(255, 107, 31, 0.08);
  border-color: var(--orange);
  color: var(--orange);
}
.header-btn.active {
  background: rgba(255, 107, 31, 0.12);
  border-color: var(--orange);
  color: var(--orange-light);
}

/* Mobile hamburger */
#sidebarToggle {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--dim2);
  border-radius: var(--radius);
  color: var(--dim);
  cursor: pointer;
  transition: all var(--t-fast);
  padding: 0;
  flex-shrink: 0;
}
#sidebarToggle:hover { border-color: var(--orange); color: var(--orange); }

/* Persona selector */
.persona-select-wrap {
  position: relative;
}
#personaSelect {
  background: var(--bg2);
  color: var(--dim);
  border: 1px solid var(--dim2);
  padding: 5px 28px 5px 10px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 10px;
  outline: none;
  cursor: pointer;
  max-width: 180px;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color var(--t-fast), color var(--t-fast);
}
#personaSelect:hover, #personaSelect:focus {
  border-color: var(--orange);
  color: var(--ink);
}
.persona-chevron {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--dim);
}

/* Theme selector */
.theme-select-wrap {
  position: relative;
}
#themeSelect {
  background: var(--bg2);
  color: var(--dim);
  border: 1px solid var(--dim2);
  padding: 5px 28px 5px 10px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 10px;
  outline: none;
  cursor: pointer;
  max-width: 120px;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color var(--t-fast), color var(--t-fast);
}
#themeSelect:hover, #themeSelect:focus {
  border-color: var(--orange);
  color: var(--ink);
}
.theme-chevron {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--dim);
}

/* ============================================================
   CHAT LOG
   ============================================================ */
#log {
  flex: 1;
  overflow-y: auto;
  padding: 28px 48px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  z-index: 1;
  scroll-behavior: smooth;
}

/* Smooth scrolling falls behind a fast token stream. Keep live responses
   locked to the newest content, then restore smooth scrolling when done. */
#log.streaming-active {
  scroll-behavior: auto;
}

/* Empty state */
#emptyState {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex: 1;
  padding: 40px;
  gap: 20px;
  animation: fadeIn 400ms ease;
}
.empty-bird {
  width: 72px;
  height: 72px;
  background: url(/dulus-bird.png) center / contain no-repeat;
  filter: drop-shadow(0 0 20px rgba(255, 107, 31, 0.3));
  animation: birdBob 5s ease-in-out infinite;
}
@keyframes birdBob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}
.empty-title {
  font-family: var(--display);
  font-size: 28px;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--ink), var(--orange-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.empty-sub {
  font-size: 13px;
  color: var(--dim);
  max-width: 360px;
  line-height: 1.7;
}
.empty-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  max-width: 500px;
}
.empty-prompt-chip {
  background: var(--bg3);
  border: 1px solid var(--dim2);
  color: var(--dim);
  font-size: 11px;
  padding: 7px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--mono);
}
.empty-prompt-chip:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 107, 31, 0.06);
}

/* Message bubbles */
.msg {
  max-width: var(--max-msg);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  word-wrap: break-word;
  font-size: 14px;
  line-height: 1.65;
  animation: slideUp 200ms ease;
  position: relative;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.user {
  align-self: flex-end;
  background: rgba(255, 107, 31, 0.09);
  border: 1px solid rgba(255, 107, 31, 0.22);
  border-radius: var(--radius-md) var(--radius-md) 0 var(--radius-md);
  white-space: pre-wrap;
}

.assistant {
  align-self: flex-start;
  background: var(--bg3);
  border: 1px solid var(--dim2);
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
}

/* Streaming cursor on last assistant msg */
.assistant.streaming .msg-content::after {
  content: "";
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--orange);
  vertical-align: text-bottom;
  margin-left: 2px;
  border-radius: 1px;
  animation: blink 900ms step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.msg-avatar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 10px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.msg-avatar-icon {
  width: 22px;
  height: 22px;
  border-radius: var(--radius);
  background: rgba(255, 107, 31, 0.15);
  border: 1px solid rgba(255, 107, 31, 0.3);
  display: grid;
  place-items: center;
  font-size: 12px;
}

/* Markdown-rendered content */
.msg-content { }
.msg-content p { margin-bottom: 8px; }
.msg-content p:last-child { margin-bottom: 0; }
.msg-content ul, .msg-content ol {
  margin: 8px 0 8px 20px;
}
.msg-content li { margin-bottom: 4px; }
.msg-content h1, .msg-content h2, .msg-content h3 {
  font-family: var(--display);
  margin: 14px 0 8px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.msg-content h1 { font-size: 20px; }
.msg-content h2 { font-size: 17px; }
.msg-content h3 { font-size: 14px; color: var(--orange-light); }
.msg-content code:not(pre code) {
  background: rgba(255, 107, 31, 0.08);
  color: var(--orange-light);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.9em;
  font-family: var(--mono);
}
.msg-content blockquote {
  border-left: 3px solid var(--orange);
  padding-left: 14px;
  color: var(--dim);
  margin: 8px 0;
  font-style: italic;
}
.msg-content a {
  color: var(--orange-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 179, 71, 0.3);
}
.msg-content a:hover { border-bottom-color: var(--orange-light); }
.msg-content hr {
  border: none;
  border-top: 1px solid var(--dim2);
  margin: 14px 0;
}
.msg-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  margin: 10px 0;
}
.msg-content th {
  background: rgba(255, 107, 31, 0.08);
  color: var(--orange-light);
  padding: 8px 12px;
  text-align: left;
  border: 1px solid var(--dim2);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.msg-content td {
  padding: 8px 12px;
  border: 1px solid var(--dim2);
  color: var(--ink2);
}
.msg-content tr:hover td { background: rgba(255, 255, 255, 0.02); }
.msg-content strong { color: var(--ink); }
.msg-content em { color: var(--ink2); }

/* Code blocks (hljs-rendered) */
.msg-content pre {
  margin: 10px 0;
}
.code-block-wrapper {
  background: #08080e;
  border: 1px solid var(--dim2);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 14px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--dim2);
}
.code-lang-label {
  font-size: 10px;
  color: var(--orange);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.code-copy-btn {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--dim);
  background: none;
  border: 1px solid var(--dim2);
  padding: 2px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--t-fast);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.code-copy-btn:hover { color: var(--orange); border-color: var(--orange); }
.code-copy-btn.copied { color: var(--green); border-color: var(--green); }
.code-block-wrapper pre {
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}
.code-block-wrapper code { font-family: var(--mono) !important; }

/* Thinking block */
.think-block {
  font-size: 11px;
  color: var(--dim);
  padding: 8px 12px;
  border-left: 2px solid var(--dim2);
  background: rgba(0, 0, 0, 0.2);
  white-space: pre-wrap;
  margin-top: 8px;
  border-radius: 0 var(--radius) var(--radius) 0;
  max-height: 180px;
  overflow-y: auto;
}
.think-block-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--dim);
  cursor: pointer;
  user-select: none;
  margin-bottom: 4px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.think-block-toggle:hover { color: var(--orange); }
.think-block-body {
  display: none;
}
.think-block-body.visible { display: block; }

/* Tool call card */
.tool-call {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: rgba(255, 107, 31, 0.04);
  border-left: 2px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 12px;
  color: #a39ca8;
  margin-top: 8px;
  animation: slideUp 150ms ease;
}
.tool-call-name {
  color: var(--orange-light);
  font-weight: 700;
  flex: 1;
}
.tool-call-status {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.tool-call-status.running {
  background: rgba(255, 107, 31, 0.15);
  color: var(--orange);
}
.tool-call-status.done {
  background: rgba(124, 255, 181, 0.1);
  color: var(--green);
}
.tool-call-status.error {
  background: rgba(255, 90, 110, 0.1);
  color: var(--red);
}

/* Tool result */
.tool-result {
  font-size: 11px;
  color: var(--dim);
  margin-top: 4px;
  padding: 8px 12px;
  border-left: 2px solid var(--dim2);
  background: rgba(0, 0, 0, 0.2);
  white-space: pre-wrap;
  max-height: 180px;
  overflow-y: auto;
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* Permission banner */
.perm-banner {
  background: rgba(255, 209, 102, 0.06);
  border: 1px solid rgba(255, 209, 102, 0.2);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
  font-size: 12px;
  animation: slideUp 200ms ease;
}
.perm-icon { color: var(--yellow); flex-shrink: 0; }
.perm-text { flex: 1; color: var(--yellow); min-width: 200px; }
.perm-actions { display: flex; gap: 8px; }
.perm-btn {
  background: var(--bg3);
  color: var(--ink);
  border: 1px solid var(--dim2);
  padding: 5px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  transition: all var(--t-fast);
}
.perm-btn:hover { border-color: var(--dim); }
.perm-btn.approve {
  background: var(--orange);
  color: #000;
  border-color: transparent;
}
.perm-btn.approve:hover { background: var(--orange-light); }

/* AskUserQuestion banner */
.question-banner {
  background: rgba(102, 178, 255, 0.06);
  border: 1px solid rgba(102, 178, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
  font-size: 12px;
  animation: slideUp 200ms ease;
}
.question-head { display: flex; align-items: center; gap: 10px; }
.question-icon { color: #66b2ff; flex-shrink: 0; }
.question-text { flex: 1; color: #9fcdff; min-width: 200px; font-weight: 600; }
.question-options { display: flex; flex-direction: column; gap: 6px; }
.question-opt-btn {
  background: var(--bg3);
  color: var(--ink);
  border: 1px solid var(--dim2);
  padding: 8px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: all var(--t-fast);
}
.question-opt-btn:hover { border-color: #66b2ff; background: rgba(102, 178, 255, 0.08); }
.question-opt-label { font-weight: 700; }
.question-opt-desc { color: var(--dim); font-size: 10px; }
.question-freetext { display: flex; gap: 8px; }
.question-input {
  flex: 1;
  background: var(--bg3);
  color: var(--ink);
  border: 1px solid var(--dim2);
  padding: 6px 10px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 11px;
}
.question-input:focus { outline: none; border-color: #66b2ff; }
.question-send-btn {
  background: #66b2ff;
  color: #000;
  border: none;
  padding: 5px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  transition: all var(--t-fast);
}
.question-send-btn:hover { filter: brightness(1.15); }
.question-answered {
  margin-top: 10px;
  font-size: 12px;
  color: var(--dim);
  font-family: var(--mono);
}

/* Token meta */
.msg-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--dim2);
  flex-wrap: wrap;
}
.meta-pill {
  font-size: 10px;
  color: var(--dim);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--dim2);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 4px;
}
.meta-pill.cache-hit { color: var(--green); border-color: rgba(124, 255, 181, 0.2); }
.meta-pill svg { width: 10px; height: 10px; }

/* Error message */
.msg.err {
  border-color: rgba(255, 90, 110, 0.3);
  background: rgba(255, 90, 110, 0.05);
}
.msg.err .msg-content { color: var(--red); }

/* ============================================================
   TYPING INDICATOR
   ============================================================ */
#typingIndicator {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg3);
  border: 1px solid var(--dim2);
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  align-self: flex-start;
  max-width: 200px;
  animation: slideUp 200ms ease;
}
#typingIndicator.visible { display: flex; }
.typing-dots {
  display: flex;
  gap: 4px;
  align-items: center;
}
.typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  animation: typing-dot 1.4s ease infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing-dot {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30%            { transform: translateY(-5px); opacity: 1; }
}
.typing-label {
  font-size: 11px;
  color: var(--dim);
  white-space: nowrap;
}

/* ============================================================
   INPUT AREA
   ============================================================ */
#inputArea {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 16px 48px;
  background: rgba(7, 7, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--dim2);
  position: relative;
  z-index: 100;
  flex-shrink: 0;
}

/* File drop overlay */
#dropOverlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 107, 31, 0.05);
  border: 2px dashed var(--orange);
  z-index: 9000;
  display: none;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
#dropOverlay.active { display: flex; }
.drop-msg {
  text-align: center;
  color: var(--orange);
}
.drop-msg svg { width: 48px; height: 48px; margin-bottom: 12px; }
.drop-msg p { font-size: 18px; font-family: var(--display); }

/* File attachments preview */
#filePreview {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.file-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg3);
  border: 1px solid var(--dim2);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-size: 11px;
  color: var(--ink2);
}
.file-chip-remove {
  background: none;
  border: none;
  color: var(--dim);
  cursor: pointer;
  padding: 0 2px;
  line-height: 1;
  font-size: 14px;
}
.file-chip-remove:hover { color: var(--red); }

.input-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
}

.input-wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: flex-end;
}

#inp {
  width: 100%;
  background: var(--bg3);
  color: var(--ink);
  border: 1px solid var(--dim2);
  padding: 12px 44px 12px 14px;
  border-radius: var(--radius-md);
  font-family: var(--mono);
  font-size: 14px;
  resize: none;
  min-height: 46px;
  max-height: 200px;
  outline: none;
  line-height: 1.5;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  overflow-y: auto;
  field-sizing: content;
}
#inp:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 107, 31, 0.08);
}
#inp::placeholder { color: var(--dim); }

/* Attach button inside textarea */
#attachBtn {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--dim);
  cursor: pointer;
  transition: color var(--t-fast);
  padding: 0;
  border-radius: var(--radius);
}
#attachBtn:hover { color: var(--orange); }
#fileInput { display: none; }

/* Voice button */
#voiceBtn {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg3);
  border: 1px solid var(--dim2);
  border-radius: var(--radius-md);
  color: var(--dim);
  cursor: pointer;
  transition: all var(--t-fast);
  padding: 0;
  flex-shrink: 0;
}
#voiceBtn:hover { border-color: var(--orange); color: var(--orange); }
#voiceBtn.recording {
  border-color: var(--red);
  color: var(--red);
  background: rgba(255, 90, 110, 0.08);
  animation: pulse-recording 1s ease infinite;
}
@keyframes pulse-recording {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 90, 110, 0.3); }
  50%       { box-shadow: 0 0 0 6px rgba(255, 90, 110, 0); }
}

/* Send button */
#sendBtn {
  height: 42px;
  padding: 0 22px;
  background: var(--orange);
  color: #000;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--t-fast), transform var(--t-fast);
  white-space: nowrap;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 7px;
}
#sendBtn:hover { background: var(--orange-light); }
#sendBtn:active { transform: scale(0.97); }
#sendBtn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* Stop button — same red cancellation language as Mesa Redonda */
#stopBtn {
  height: 42px;
  padding: 0 18px;
  background: #2a0a0a;
  color: var(--red);
  border: 1px solid rgba(255, 90, 110, 0.4);
  border-radius: var(--radius-md);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast);
  white-space: nowrap;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 7px;
}
#stopBtn[hidden] { display: none; }
#stopBtn:hover { background: rgba(255, 90, 110, 0.15); border-color: var(--red); }
#stopBtn:active { transform: scale(0.97); }
#stopBtn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* Input hint bar */
.input-hints {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 6px;
  font-size: 10px;
  color: var(--dim);
}
.input-hint-key {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.kbd {
  background: var(--bg4);
  border: 1px solid var(--dim2);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 10px;
  color: var(--dim);
  font-family: var(--mono);
}
.input-hints-right { margin-left: auto; }
#charCount { font-size: 10px; color: var(--dim); }
#charCount.warn { color: var(--yellow); }

/* ============================================================
   TOAST SYSTEM
   ============================================================ */
#toastContainer {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg4);
  border: 1px solid var(--dim2);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-size: 12px;
  color: var(--ink);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.6);
  min-width: 220px;
  max-width: 320px;
  position: relative;
  overflow: hidden;
  animation: toastIn 250ms ease;
  pointer-events: auto;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(30px); }
}
.toast.exiting { animation: toastOut 250ms ease forwards; }
.toast::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
}
.toast.success::before { background: var(--green); }
.toast.error::before   { background: var(--red); }
.toast.info::before    { background: var(--orange); }
.toast.warning::before { background: var(--yellow); }
.toast-icon { width: 16px; height: 16px; flex-shrink: 0; }
.toast.success .toast-icon { color: var(--green); }
.toast.error   .toast-icon { color: var(--red); }
.toast.info    .toast-icon { color: var(--orange); }
.toast.warning .toast-icon { color: var(--yellow); }
.toast-text { flex: 1; line-height: 1.4; }

/* ============================================================
   CONTEXT MENU
   ============================================================ */
#ctxMenu {
  position: fixed;
  background: var(--bg4);
  border: 1px solid var(--dim2);
  border-radius: var(--radius-md);
  padding: 4px;
  z-index: 9999;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
  display: none;
  min-width: 140px;
  animation: fadeIn 150ms ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
#ctxMenu .ctx-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
  color: var(--ink);
  transition: background var(--t-fast);
  border: none;
  background: transparent;
  width: 100%;
  font-family: var(--mono);
  text-align: left;
}
#ctxMenu .ctx-item:hover { background: rgba(255, 107, 31, 0.12); color: var(--orange-light); }
#ctxMenu .ctx-item svg { width: 13px; height: 13px; color: var(--dim); flex-shrink: 0; }
#ctxMenu .ctx-item:hover svg { color: var(--orange); }
#ctxMenu .ctx-item.danger { color: var(--red); }
#ctxMenu .ctx-item.danger:hover { background: rgba(255, 90, 110, 0.1); }
#ctxMenu .ctx-item.danger svg { color: var(--red); }
#ctxMenu .ctx-separator { height: 1px; background: var(--dim2); margin: 4px 0; }

/* ============================================================
   KEYBOARD SHORTCUT PALETTE
   ============================================================ */
#cmdPalette {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  z-index: 8000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
}
#cmdPalette.open { display: flex; }
.cmd-palette-box {
  width: 520px;
  max-width: 90vw;
  background: var(--bg4);
  border: 1px solid rgba(255, 107, 31, 0.3);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(255, 107, 31, 0.08);
  overflow: hidden;
  animation: slideUp 200ms ease;
}
.cmd-search-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--dim2);
}
.cmd-search-icon { color: var(--dim); flex-shrink: 0; }
#cmdSearch {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
}
#cmdSearch::placeholder { color: var(--dim); }
.cmd-esc {
  font-size: 10px;
  color: var(--dim);
  background: var(--bg5);
  border: 1px solid var(--dim2);
  padding: 2px 6px;
  border-radius: 3px;
}
.cmd-list {
  max-height: 360px;
  overflow-y: auto;
  padding: 6px;
}
.cmd-group-label {
  font-size: 10px;
  color: var(--dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 8px 12px 4px;
}
.cmd-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--t-fast);
}
.cmd-item:hover, .cmd-item.active {
  background: rgba(255, 107, 31, 0.1);
}
.cmd-item-icon {
  width: 28px;
  height: 28px;
  background: var(--bg5);
  border: 1px solid var(--dim2);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: var(--dim);
  flex-shrink: 0;
}
.cmd-item:hover .cmd-item-icon, .cmd-item.active .cmd-item-icon {
  border-color: var(--orange);
  color: var(--orange);
}
.cmd-item-text {
  flex: 1;
  min-width: 0;
}
.cmd-item-name {
  font-size: 13px;
  color: var(--ink);
}
.cmd-item-desc {
  font-size: 11px;
  color: var(--dim);
  margin-top: 1px;
}
.cmd-item-kbd {
  display: flex;
  gap: 3px;
  flex-shrink: 0;
}

/* ============================================================
   THEME TOGGLE
   ============================================================ */
#themeToggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--dim2);
  border-radius: var(--radius);
  color: var(--dim);
  cursor: pointer;
  transition: all var(--t-fast);
  padding: 0;
}
#themeToggle:hover { border-color: var(--orange); color: var(--orange); }

/* Light theme overrides */
body.light {
  --bg:   #f4f0ec;
  --bg2:  #ede9e5;
  --bg3:  #e4e0db;
  --bg4:  #dbd7d2;
  --bg5:  #d1cdc8;
  --ink:  #1a1210;
  --ink2: #4a4540;
  --dim:  #8a8480;
  --dim2: #ccc9c4;
}
body.light .grid-bg {
  background-image:
    linear-gradient(rgba(255, 107, 31, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 107, 31, 0.04) 1px, transparent 1px);
}

/* ============================================================
   MOBILE OVERLAY
   ============================================================ */
#sidebarOverlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 400;
  backdrop-filter: blur(2px);
}
#sidebarOverlay.open { display: block; }

/* ============================================================
   ACCESSIBILITY — SKIP LINK
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 14px;
  background: var(--orange);
  color: #000;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 700;
  z-index: 99999;
  transition: top 200ms;
}
.skip-link:focus { top: 14px; }

/* ============================================================
   EXPORT MODAL
   ============================================================ */
#exportModal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  z-index: 8000;
  display: none;
  align-items: center;
  justify-content: center;
}
#exportModal.open { display: flex; }
.export-box {
  background: var(--bg4);
  border: 1px solid var(--dim2);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  min-width: 340px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
  animation: slideUp 200ms ease;
}
.export-title {
  font-family: var(--display);
  font-size: 18px;
  margin-bottom: 18px;
  color: var(--ink);
}
.export-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}
.export-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg3);
  border: 1px solid var(--dim2);
  border-radius: var(--radius-md);
  color: var(--ink);
  cursor: pointer;
  transition: all var(--t-fast);
  font-family: var(--mono);
  font-size: 13px;
  text-align: left;
  width: 100%;
}
.export-btn:hover { border-color: var(--orange); color: var(--orange); background: rgba(255, 107, 31, 0.06); }
.export-btn-icon { color: var(--dim); }
.export-close {
  width: 100%;
  padding: 9px;
  background: none;
  border: 1px solid var(--dim2);
  border-radius: var(--radius);
  color: var(--dim);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  transition: all var(--t-fast);
}
.export-close:hover { border-color: var(--orange); color: var(--orange); }

/* ============================================================
   RESPONSIVE — MOBILE FIRST UPGRADES
   ============================================================ */
@media (max-width: 768px) {
  #sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    z-index: 500;
    transform: translateX(-100%);
    transition: transform 300ms ease;
    box-shadow: none;
    width: 280px;
    min-width: 280px;
  }
  #sidebar.open {
    transform: translateX(0);
    box-shadow: 4px 0 30px rgba(0, 0, 0, 0.6);
  }
  #sidebarToggle { display: flex; }
  #log { padding: 16px 18px; gap: 14px; }
  .msg { max-width: 95%; }
  #inputArea { padding: 12px 18px; }
  header { padding: 0 14px; height: 52px; }
  .header-wordmark { font-size: 14px; }
  .header-model-badge, .status-indicator { display: none; }
  #voiceBtn { display: none; }
}
@media (max-width: 480px) {
  header { height: auto; min-height: 52px; padding: 8px 14px; flex-wrap: wrap; gap: 8px; }
  .header-right { gap: 6px; }
  .header-btn span { display: none; }
  .header-btn { padding: 6px 8px; }
  #log { padding: 12px 14px; }
  #inputArea { padding: 10px 14px; }
  #sendBtn span, #stopBtn span { display: none; }
  #sendBtn, #stopBtn { padding: 0 14px; }
}

/* ============================================================
   PRINT / EXPORT STYLES
   ============================================================ */
@media print {
  #sidebar, header, #inputArea, #toastContainer, #ctxMenu,
  #cmdPalette, #exportModal, #dropOverlay, .grid-bg { display: none !important; }
  #main { height: auto; overflow: visible; }
  #log { height: auto; overflow: visible; padding: 20px; }
  body { background: white; color: black; }
  .msg { border: 1px solid #ddd; }
  .user { background: #fff8f4; }
  .assistant { background: #f8f8f8; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}