/* All chrome components: sidebar, chat, input, preview. */

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Sidebar logo ──────────────────────────────────────────── */
.sidebar-logo {
  display: grid; place-items: center;
  width: 36px; height: 36px;
  margin-bottom: 18px;
  color: var(--fg-primary);
  border-radius: var(--radius);
  transition: background var(--duration-fast);
}
.sidebar-logo:hover { background: rgba(255,255,255,0.04); }

/* ── Icon buttons ──────────────────────────────────────────── */
.icon-btn {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: transparent;
  border: none;
  border-radius: var(--radius);
  color: var(--fg-secondary);
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.icon-btn:hover { background: rgba(210,255,65,0.08); color: var(--fg-primary); }
.icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.icon-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.icon-btn.active { background: rgba(210,255,65,0.16); color: var(--accent); }
.icon-btn--small { width: 28px; height: 28px; }

/* Sidebar nav stack */
.sidebar-nav {
  display: flex; flex-direction: column; gap: 6px;
  margin-top: 16px;
}
.sidebar-bottom {
  margin-top: auto;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.user-avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--bg-card);
  color: var(--fg-primary);
  font: 600 12px/1 var(--font-sans);
  border: 1px solid var(--border-soft);
}

/* ── Session overlay ───────────────────────────────────────── */
.overlay-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px;
}
.overlay-head h3 {
  font: 600 14px/1 var(--font-sans);
  margin: 0;
  color: var(--fg-primary);
}
.session-list {
  list-style: none; padding: 0; margin: 0;
}
.session-item {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--duration-fast);
}
.session-item:hover { background: rgba(255,255,255,0.04); }
.session-item.active { background: rgba(210,255,65,0.10); }
.session-item .session-text { display: flex; flex-direction: column; min-width: 0; }
.session-item .session-title { font: 500 13px/1.3 var(--font-sans); color: var(--fg-primary);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.session-item .session-time { font: 400 11px/1.3 var(--font-mono); color: var(--fg-dim);
  margin-top: 2px; }

/* ── Chat header ───────────────────────────────────────────── */
#chat-header {
  height: 48px;
  padding: 0 24px;
  display: flex; align-items: center;
  border-bottom: 1px solid var(--border-soft);
  flex: 0 0 auto;
}
.conversation-title {
  display: flex; align-items: center; gap: 8px;
  background: transparent; border: none;
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--fg-primary);
  font: 600 14px/1 var(--font-sans);
  cursor: pointer;
  transition: background var(--duration-fast);
}
.conversation-title:hover { background: rgba(255,255,255,0.04); }
.title-emoji { font-size: 16px; line-height: 1; }

/* ── Inline turn indicator (Claude.ai-style) ─────────────────
   Lives at the bottom of #messages while a turn is active.
   Replaces the old top-right `.connection-pill`. */
.turn-indicator {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 0;
  font: 400 12px/1.4 var(--font-sans);
  color: var(--fg-dim);
}
.turn-indicator-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand-neutral-500);
}
.turn-indicator[data-state="streaming"] .turn-indicator-dot {
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(210,255,65,0.6);
  animation: pulse 1.4s ease-in-out infinite;
}
.turn-indicator[data-state="error"] .turn-indicator-dot {
  background: var(--brand-red);
}
.turn-indicator[data-state="error"] .turn-indicator-label {
  color: var(--brand-red);
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0   rgba(210,255,65,0.5); }
  70%  { box-shadow: 0 0 0 6px rgba(210,255,65,0); }
  100% { box-shadow: 0 0 0 0   rgba(210,255,65,0); }
}

/* ── Inline artifact card (Claude-style) ─────────────────────
   Compact rectangular card the agent emits via present_artifact.
   Click the body → opens preview panel. Click [download] → saves file.
   When immediately following an assistant message, the card hugs
   close so the pair reads as one block ("Here's your report:" + card). */
.artifact-card {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 12px 0;
  /* IMPORTANT: #messages is a flex column with bounded height. Without
     flex-shrink:0 here, the card collapses to ~2px tall when total
     content exceeds the container — the icon/body get clipped by our
     own `overflow: hidden`. Other children (.msg-user, .msg-assistant)
     resist shrink via their text's intrinsic min-content height. */
  flex-shrink: 0;
  background: var(--bg-card, rgba(255,255,255,0.04));
  border: 1px solid var(--border-soft, rgba(255,255,255,0.08));
  border-radius: 12px;
  overflow: hidden;
  transition: background var(--duration-fast), border-color var(--duration-fast);
}
.artifact-card:hover { border-color: rgba(210,255,65,0.30); }
.artifact-card-body {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  color: inherit;
}
.artifact-card-body:hover { background: rgba(255,255,255,0.03); }
.artifact-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  flex: 0 0 32px;
  border-radius: 8px;
  background: rgba(210,255,65,0.10);
  color: var(--accent);
}
.artifact-card-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.artifact-card-name {
  font: 600 14px/1.3 var(--font-sans);
  color: var(--fg-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.artifact-card-meta {
  font: 400 12px/1.3 var(--font-mono);
  color: var(--fg-dim);
}
.artifact-card-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  background: transparent;
  border: none;
  border-left: 1px solid var(--border-soft, rgba(255,255,255,0.08));
  color: var(--fg-secondary);
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.artifact-card-action:hover {
  background: rgba(255,255,255,0.04);
  color: var(--accent);
}
.msg-assistant + .artifact-card { margin-top: 6px; }

/* ── Messages ──────────────────────────────────────────────── */
#messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px 24px 8px;
  scroll-behavior: smooth;
  display: flex;
  flex-direction: column;
  align-items: center;
}
#messages > * { width: 100%; max-width: 760px; }

.empty-state {
  display: grid; place-items: center;
  flex: 1;
  text-align: center;
  color: var(--fg-secondary);
}
.empty-state .mark {
  width: 64px; height: 64px; opacity: 0.4;
  margin-bottom: 16px;
}
.empty-state h2 {
  font: 600 22px/1.2 var(--font-sans); margin: 0 0 8px; color: var(--fg-primary);
}
.empty-state p { margin: 0; font-size: 14px; }

/* User bubble */
.msg { display: flex; margin: 12px 0; }
.msg-user { justify-content: flex-end; }
.msg-user .bubble {
  max-width: 70%;
  background: var(--bg-bubble-user);
  color: var(--fg-primary);
  padding: 10px 14px;
  border-radius: var(--radius-lg);
  font-size: 15px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Plan (italic agent thought) */
.plan {
  display: flex; gap: 8px; align-items: flex-start;
  margin: 14px 0 6px;
  font-size: 13px;
  color: var(--fg-secondary);
}
.plan-icon { color: var(--accent); flex-shrink: 0; padding-top: 2px; }
.plan-text { font-style: italic; line-height: 1.5; }

/* Tool line (mono, dim) */
.tool-line {
  display: flex; gap: 8px; align-items: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--fg-mono);
  margin: 4px 0;
  animation: tool-line-in var(--duration) var(--easing);
}
.tool-arrow { color: var(--fg-dim); }
.tool-name { font-weight: 500; }
.tool-arg { color: var(--fg-secondary); overflow: hidden; text-overflow: ellipsis;
  max-width: 320px; white-space: nowrap; }
.tool-sep { color: var(--fg-dim); }
.tool-status.ok      { color: var(--brand-green); }
.tool-status.err     { color: var(--brand-red); }
.tool-status.pending { color: var(--fg-dim); }
.tool-elapsed { color: var(--fg-dim); }

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

/* Assistant text (markdown body) */
.msg-assistant .md-body {
  max-width: 80%;
  font-size: 15px; line-height: 1.6;
  color: var(--fg-primary);
}
.md-body p { margin: 0 0 12px; }
.md-body code {
  font-family: var(--font-mono); font-size: 13px;
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.md-body pre {
  background: var(--bg-elevated);
  padding: 12px 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 12.5px;
}
.md-body ul, .md-body ol { padding-left: 22px; margin: 0 0 12px; }
.md-body strong { font-weight: 600; }

/* Status / error banners inside messages */
.banner {
  margin: 10px 0;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 13px;
}
.banner-error { background: rgba(248,81,73,0.10); color: var(--brand-red);
  border: 1px solid rgba(248,81,73,0.3); }
.banner-info  { background: rgba(210,255,65,0.06); color: var(--accent-soft);
  border: 1px solid rgba(210,255,65,0.18); }

/* Detail-mode toggle hides traces by default */
.tool-line, .plan { display: flex; }
body[data-details="off"] .tool-line { display: none; }
body[data-details="off"] .plan      { display: none; }

/* ── Input bar ─────────────────────────────────────────────── */
#input-area {
  padding: 0 24px 12px;
  display: flex; flex-direction: column; align-items: center;
  flex: 0 0 auto;
}
#input-bar {
  width: min(720px, 100%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex; flex-direction: column;
  overflow: hidden;
  transition: border-color var(--duration-fast);
}
#input-bar:focus-within { border-color: var(--accent); }

#user-input {
  background: transparent;
  color: var(--fg-primary);
  border: none; outline: none; resize: none;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 15px; line-height: 1.5;
  min-height: 44px; max-height: 200px;
}
#user-input::placeholder { color: var(--fg-dim); }

.input-row {
  display: flex; align-items: center;
  padding: 6px 8px 6px 12px;
  border-top: 1px solid var(--divider);
  gap: 6px;
}
.input-row .spacer { flex: 1; }

.model-chip,
.effort-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-pill);
  color: var(--fg-secondary);
  font: 500 12px/1 var(--font-sans);
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast),
              border-color var(--duration-fast);
}
.model-chip:hover,
.effort-chip:hover { background: rgba(255,255,255,0.08); color: var(--fg-primary); }
.effort-chip[hidden] { display: none; }
.effort-chip .effort-icon {
  display: grid; place-items: center;
  color: var(--fg-dim);
}
.effort-chip:hover .effort-icon { color: var(--accent); }
.effort-chip[data-deep="true"] {
  border-color: var(--accent);
  color: var(--accent);
}
.effort-chip[data-deep="true"] .effort-icon { color: var(--accent); }
.effort-chip[data-deep="true"]::after {
  content: "DEEP";
  font: 600 9px/1 var(--font-mono);
  letter-spacing: 0.08em;
  padding: 2px 5px;
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: var(--radius-sm);
  margin-left: 2px;
}

/* Mobile: stack chips on their own row */
@media (max-width: 480px) {
  .input-row { flex-wrap: wrap; }
  .input-row .spacer { display: none; }
  #send-btn { margin-left: auto; }
}

.send-btn {
  width: 32px; height: 32px;
  display: grid; place-items: center;
  background: var(--accent);
  color: var(--accent-fg);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--duration-fast), background var(--duration-fast);
}
.send-btn:hover:not(:disabled) { transform: scale(1.05); }
.send-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.send-btn .icon-stop { display: none; }
.send-btn[data-streaming="true"] {
  background: transparent;
  border: 1.5px solid var(--brand-red);
  color: var(--brand-red);
}
.send-btn[data-streaming="true"] .icon-send { display: none; }
.send-btn[data-streaming="true"] .icon-stop { display: block; }

/* ── Picker overlay (model / effort) ─────────────────────────── */
.picker-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  display: grid;
  place-items: center;
  padding: 16px;
  transition: opacity var(--duration) var(--easing);
}
.picker-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}
.picker-panel {
  width: 100%;
  max-width: 360px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--divider);
}
.picker-title {
  margin: 0;
  font: 600 14px/1 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-secondary);
}
.picker-close {
  background: transparent;
  border: 0;
  color: var(--fg-dim);
  cursor: pointer;
  padding: 4px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast), background var(--duration-fast);
}
.picker-close:hover {
  color: var(--fg-primary);
  background: rgba(255, 255, 255, 0.06);
}
.picker-list {
  list-style: none;
  margin: 0;
  padding: 6px;
}
.picker-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-fast);
}
.picker-option:hover:not(.disabled) {
  background: rgba(255, 255, 255, 0.04);
}
.picker-option.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.picker-radio {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
  position: relative;
  transition: border-color var(--duration-fast);
}
.picker-option[aria-selected="true"] .picker-radio {
  border-color: var(--accent);
}
.picker-option[aria-selected="true"] .picker-radio::after {
  content: "";
  position: absolute;
  inset: 2px;
  border-radius: 50%;
  background: var(--accent);
}
.picker-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.picker-name {
  font: 500 13px/1.25 var(--font-sans);
  color: var(--fg-primary);
}
.picker-meta {
  font: 400 11px/1.3 var(--font-mono);
  color: var(--fg-dim);
}
.picker-option[aria-selected="true"] .picker-name {
  color: var(--accent);
}
.picker-footer {
  margin: 0;
  padding: 10px 16px 14px;
  font: 400 11px/1.4 var(--font-mono);
  color: var(--fg-dim);
  border-top: 1px solid var(--divider);
  background: var(--bg-deep);
}

#disclaimer {
  text-align: center;
  font-size: 11px;
  color: var(--fg-dim);
  margin: 8px 0 0;
}

/* ── Preview header ────────────────────────────────────────── */
#preview-header {
  height: 40px;
  padding: 0 12px;
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-secondary);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-soft);
}
#preview-header .spacer { flex: 1; }
.preview-icon { font-size: 14px; }
.preview-path { color: var(--fg-mono); }

/* Render/Code toggle (Layer 2) */
.preview-mode-toggle {
  display: inline-flex;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft, rgba(255,255,255,0.08));
  border-radius: 999px;
  padding: 2px;
  margin-right: 4px;
}
.preview-mode-btn {
  background: transparent;
  border: none;
  color: var(--fg-secondary);
  font: 500 11px/1 var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.preview-mode-btn:hover { color: var(--fg-primary); }
.preview-mode-btn.active {
  background: var(--bg-base, #1a1a1a);
  color: var(--fg-primary);
}

.icon-btn.flashed { color: var(--accent); }

#preview-iframe {
  flex: 1;
  border: none;
  background: var(--brand-sage-light);
}
#preview-iframe[hidden] { display: none; }

.preview-code {
  flex: 1;
  margin: 0;
  padding: 16px;
  overflow: auto;
  background: var(--bg-base, #0d0d0d);
  color: var(--fg-primary);
  font: 400 12px/1.55 var(--font-mono);
  white-space: pre;
  tab-size: 2;
}
.preview-code[hidden] { display: none; }
.preview-code code { display: block; }

/* ── Toasts ────────────────────────────────────────────────── */
#toast-holder {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font: 500 13px/1.4 var(--font-sans);
  color: var(--fg-primary);
  box-shadow: 0 10px 24px rgba(0,0,0,0.5);
  animation: toast-in var(--duration) var(--easing);
}
.toast.error { border-color: rgba(248,81,73,0.4); color: var(--brand-red); }
.toast.success { border-color: rgba(63,185,80,0.4); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}