/*!
 * dotHello GenAI Addon — v2.5.0
 * Addon CSS for dothello-genai.js
 * Load AFTER dothello.css
 * Usage: DH.GenAI.init()
 * (c) helloDJT — MIT License
 */

/* ============================================
   GenAI Tokens
   ============================================ */

:root {
  /* Core brand reference — inherits from dotHello semantic tokens */
  --dh-ai-primary:         var(--dh-color-primary, #00e5a0);
  --dh-ai-on-primary:      var(--dh-color-on-primary, #000000);
  --dh-ai-focus-ring:      var(--dh-focus-ring-color, var(--dh-color-primary, #00e5a0));

  /* Accent palette — mapped from dotHello chart tokens */
  --dh-ai-accent:          #f59e0b;
  --dh-ai-accent-dim:      rgba(245,158,11,.12);
  --dh-ai-accent-border:   rgba(245,158,11,.25);
  --dh-ai-cyan:            #38bdf8;
  --dh-ai-cyan-dim:        rgba(56,189,248,.12);
  --dh-ai-cyan-border:     rgba(56,189,248,.25);
  --dh-ai-violet:          #a78bfa;
  --dh-ai-violet-dim:      rgba(167,139,250,.12);
  --dh-ai-violet-border:   rgba(167,139,250,.25);
  --dh-ai-green:           #4ade80;
  --dh-ai-green-dim:       rgba(74,222,128,.12);
  --dh-ai-green-border:    rgba(74,222,128,.25);
  --dh-ai-red:             #f87171;
  --dh-ai-red-dim:         rgba(248,113,113,.12);
  --dh-ai-red-border:      rgba(248,113,113,.25);

  /* Surfaces */
  --dh-ai-surface:         rgba(255,255,255,.04);
  --dh-ai-surface-hi:      rgba(255,255,255,.07);
  --dh-ai-border:          rgba(255,255,255,.08);
  --dh-ai-border-hi:       rgba(255,255,255,.16);

  /* Radii (fall back to dotHello core tokens) */
  --dh-ai-r:               var(--dh-radius-sm,  4px);
  --dh-ai-r-md:            var(--dh-radius-md,  8px);
  --dh-ai-r-lg:            var(--dh-radius-lg, 12px);
  --dh-ai-r-xl:            var(--dh-radius-xl, 16px);

  /* Typography */
  --dh-ai-mono:            var(--dh-font-mono, 'JetBrains Mono', monospace);
}

/* ============================================
   Shared panel base
   ============================================ */

.dh-ai-panel {
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
  overflow: hidden;
}

.dh-ai-panel__hdr {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--dh-ai-border);
  font-size: .75rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-panel__body {
  padding: 1rem;
}

/* ============================================
   Shared badge (reused across components)
   ============================================ */

.dh-ai-badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .15rem .5rem;
  border-radius: 100px;
  font-size: .68rem;
  font-weight: 600;
  white-space: nowrap;
}

.dh-ai-badge--green  { background: var(--dh-ai-green-dim);  color: var(--dh-ai-green);  border: 1px solid var(--dh-ai-green-border); }

.dh-ai-badge--amber  { background: var(--dh-ai-accent-dim); color: var(--dh-ai-accent); border: 1px solid var(--dh-ai-accent-border); }

.dh-ai-badge--cyan   { background: var(--dh-ai-cyan-dim);   color: var(--dh-ai-cyan);   border: 1px solid var(--dh-ai-cyan-border); }

.dh-ai-badge--violet { background: var(--dh-ai-violet-dim); color: var(--dh-ai-violet); border: 1px solid var(--dh-ai-violet-border); }

.dh-ai-badge--red    { background: var(--dh-ai-red-dim);    color: var(--dh-ai-red);    border: 1px solid var(--dh-ai-red-border); }

.dh-ai-badge--muted  { background: var(--dh-ai-surface);    color: var(--dh-color-text-muted, #94a3b8); border: 1px solid var(--dh-ai-border); }

.dh-ai-badge__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

/* ============================================================
   SECTION 1 — INPUTS
   ============================================================ */

/* ── Prompt Input ── */

.dh-ai-prompt-wrap {
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-lg);
  transition: border-color .2s;
}

.dh-ai-prompt-wrap:focus-within {
  border-color: var(--dh-color-primary, #6c63ff);
  box-shadow: 0 0 0 3px rgba(108,99,255,.12);
}

.dh-ai-prompt-textarea {
  display: block;
  width: 100%;
  min-height: 80px;
  max-height: 320px;
  padding: .85rem 1rem .5rem;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  font-family: var(--dh-font-body, system-ui, sans-serif);
  font-size: .88rem;
  line-height: 1.6;
  color: var(--dh-color-text, #e2e8f0);
  overflow-y: auto;
}

.dh-ai-prompt-textarea::-moz-placeholder {
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-prompt-textarea::placeholder {
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-prompt-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .45rem .65rem .45rem .55rem;
  border-top: 1px solid var(--dh-ai-border);
  gap: .5rem;
}

.dh-ai-prompt-tools {
  display: flex;
  align-items: center;
  gap: .2rem;
}

.dh-ai-pt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  background: transparent;
  border: none;
  border-radius: var(--dh-ai-r-md);
  font-size: .88rem;
  color: var(--dh-color-text-muted, #94a3b8);
  cursor: pointer;
  transition: background .15s, color .15s;
}

.dh-ai-pt-btn:hover {
  background: var(--dh-ai-surface-hi);
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-char-count {
  font-size: .7rem;
  font-family: var(--dh-ai-mono);
  color: var(--dh-color-text-muted, #64748b);
  transition: color .2s;
}

.dh-ai-char-count--warn { color: var(--dh-ai-accent); }

.dh-ai-char-count--over { color: var(--dh-ai-red); }

.dh-ai-send-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem .85rem;
  background: var(--dh-color-primary, #6c63ff);
  color: #fff;
  border: none;
  border-radius: var(--dh-ai-r-md);
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity .15s, background .15s;
}

.dh-ai-send-btn:hover   { opacity: .88; }

.dh-ai-send-btn:disabled{ opacity: .4; cursor: not-allowed; }

.dh-ai-send-btn kbd {
  background: rgba(255,255,255,.2);
  border-radius: 3px;
  padding: .1rem .3rem;
  font-size: .68rem;
  font-family: var(--dh-ai-mono);
}

/* ── System Prompt Editor ── */

.dh-ai-sys-editor {
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
}

.dh-ai-sys-editor__hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .6rem .9rem;
  border-bottom: 1px solid var(--dh-ai-border);
}

.dh-ai-sys-editor__title {
  font-size: .75rem;
  font-weight: 700;
  color: var(--dh-color-text, #e2e8f0);
  letter-spacing: .02em;
}

.dh-ai-sys-editor__tokens {
  font-size: .68rem;
  font-family: var(--dh-ai-mono);
  color: var(--dh-color-text-muted, #64748b);
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: 100px;
  padding: .1rem .5rem;
}

.dh-ai-sys-editor__ta {
  display: block;
  width: 100%;
  padding: .75rem .9rem;
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
  font-family: var(--dh-ai-mono);
  font-size: .78rem;
  line-height: 1.7;
  color: var(--dh-color-text, #e2e8f0);
}

/* ── File Attachments ── */

.dh-ai-attachment-list {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.dh-ai-attachment {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem .5rem .3rem .65rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: 100px;
  font-size: .75rem;
  color: var(--dh-color-text, #e2e8f0);
  transition: border-color .15s;
}

.dh-ai-attachment:hover { border-color: var(--dh-ai-border-hi); }

.dh-ai-attachment__icon { font-size: .9rem; }

.dh-ai-attachment__name { font-weight: 500; }

.dh-ai-attachment__size { color: var(--dh-color-text-muted, #64748b); font-size: .68rem; }

.dh-ai-attachment__remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px; height: 16px;
  margin-left: .1rem;
  background: var(--dh-ai-surface-hi);
  border: none;
  border-radius: 50%;
  font-size: .6rem;
  color: var(--dh-color-text-muted, #64748b);
  cursor: pointer;
  transition: background .15s, color .15s;
}

.dh-ai-attachment__remove:hover {
  background: var(--dh-ai-red-dim);
  color: var(--dh-ai-red);
}

/* ── Slash Command Palette ── */

.dh-ai-slash-wrap { position: relative; }

.dh-ai-slash-input {
  width: 100%;
  padding: .65rem .9rem;
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-lg);
  outline: none;
  font-family: var(--dh-font-body, system-ui);
  font-size: .85rem;
  color: var(--dh-color-text, #e2e8f0);
  transition: border-color .2s;
}

.dh-ai-slash-input:focus {
  border-color: var(--dh-color-primary, #6c63ff);
  box-shadow: 0 0 0 3px rgba(108,99,255,.12);
}

.dh-ai-slash-palette {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
  z-index: 300;
  overflow: hidden;
  max-height: 320px;
  overflow-y: auto;
}

.dh-ai-slash-palette.is-open { display: block; }

.dh-ai-palette-label {
  padding: .5rem .8rem .3rem;
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-palette-item {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .6rem .8rem;
  cursor: pointer;
  transition: background .12s;
}

.dh-ai-palette-item:hover,
.dh-ai-palette-item.is-active {
  background: var(--dh-ai-surface-hi);
}

.dh-ai-palette-item__icon { font-size: 1rem; flex-shrink: 0; }

.dh-ai-palette-item__cmd {
  font-family: var(--dh-ai-mono);
  font-size: .78rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-palette-item__desc {
  font-size: .72rem;
  color: var(--dh-color-text-muted, #64748b);
  margin-top: .1rem;
}

.dh-ai-palette-item__kbd {
  margin-left: auto;
  font-family: var(--dh-ai-mono);
  font-size: .65rem;
  color: var(--dh-color-text-muted, #64748b);
}

/* ── Voice Input ── */

.dh-ai-voice-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  background: var(--dh-ai-surface-hi);
  border: 2px solid var(--dh-ai-border-hi);
  border-radius: 50%;
  font-size: 1.3rem;
  cursor: pointer;
  transition: background .2s, border-color .2s, box-shadow .2s;
  flex-shrink: 0;
}

.dh-ai-voice-btn:hover { border-color: var(--dh-color-primary, #6c63ff); }

.dh-ai-voice-btn.is-recording {
  background: var(--dh-ai-red-dim);
  border-color: var(--dh-ai-red);
  box-shadow: 0 0 0 0 rgba(248,113,113,.4);
  animation: dh-ai-pulse 1.5s ease-out infinite;
}

@keyframes dh-ai-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(248,113,113,.4); }
  70%  { box-shadow: 0 0 0 12px rgba(248,113,113,0); }
  100% { box-shadow: 0 0 0 0 rgba(248,113,113,0); }
}

.dh-ai-waveform {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 24px;
}

.dh-ai-wf-bar {
  width: 3px;
  border-radius: 2px;
  background: var(--dh-ai-red);
  animation: dh-ai-wave 1s ease-in-out infinite;
  height: 4px;
}

.dh-ai-wf-bar:nth-child(2) { animation-delay: .1s; }

.dh-ai-wf-bar:nth-child(3) { animation-delay: .2s; }

.dh-ai-wf-bar:nth-child(4) { animation-delay: .3s; }

.dh-ai-wf-bar:nth-child(5) { animation-delay: .15s; }

.dh-ai-wf-bar:nth-child(6) { animation-delay: .25s; }

.dh-ai-wf-bar:nth-child(7) { animation-delay: .05s; }

@keyframes dh-ai-wave {
  0%, 100% { height: 4px; }
  50%       { height: 20px; }
}

.dh-ai-voice-duration {
  font-family: var(--dh-ai-mono);
  font-size: .85rem;
  font-weight: 600;
  color: var(--dh-ai-red);
}

.dh-ai-voice-status {
  font-size: .78rem;
  color: var(--dh-color-text-muted, #64748b);
}

/* ── Prompt Library ── */

.dh-ai-lib-filters {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  margin-bottom: .85rem;
}

.dh-ai-lib-filter {
  padding: .3rem .75rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: 100px;
  font-size: .72rem;
  font-weight: 500;
  color: var(--dh-color-text-muted, #94a3b8);
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}

.dh-ai-lib-filter:hover,
.dh-ai-lib-filter.is-active {
  background: var(--dh-ai-accent-dim);
  border-color: var(--dh-ai-accent-border);
  color: var(--dh-ai-accent);
}

.dh-ai-lib-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: .65rem;
}

.dh-ai-lib-card {
  padding: .85rem 1rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
  cursor: pointer;
  transition: border-color .2s, background .2s;
}

.dh-ai-lib-card:hover {
  border-color: var(--dh-ai-border-hi);
  background: var(--dh-ai-surface-hi);
}

.dh-ai-lib-card.is-selected {
  border-color: var(--dh-color-primary, #6c63ff);
  background: rgba(108,99,255,.08);
}

.dh-ai-lib-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .4rem;
}

.dh-ai-lib-card__title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-lib-card__text {
  font-size: .75rem;
  color: var(--dh-color-text-muted, #94a3b8);
  line-height: 1.55;
}

/* ============================================================
   SECTION 2 — OUTPUTS
   ============================================================ */

/* ── Streaming Text ── */

.dh-ai-stream-box {
  padding: 1rem 1.1rem;
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
  font-family: var(--dh-font-body, system-ui);
  font-size: .88rem;
  line-height: 1.75;
  color: var(--dh-color-text, #e2e8f0);
  cursor: pointer;
  min-height: 60px;
}

.dh-ai-stream-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--dh-color-primary, #6c63ff);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: dh-ai-blink .9s step-end infinite;
}

.dh-ai-stream-cursor.is-done { display: none; }

@keyframes dh-ai-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.dh-ai-stream-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: .5rem;
  font-size: .68rem;
  font-family: var(--dh-ai-mono);
  color: var(--dh-color-text-muted, #64748b);
}

/* ── Thinking / Reasoning ── */

.dh-ai-thinking {
  background: var(--dh-ai-violet-dim);
  border: 1px solid var(--dh-ai-violet-border);
  border-radius: var(--dh-ai-r-lg);
  overflow: hidden;
}

.dh-ai-thinking__hdr {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem .9rem;
  cursor: pointer;
  -webkit-user-select: none;
     -moz-user-select: none;
          user-select: none;
  font-size: .8rem;
  font-weight: 600;
  color: var(--dh-ai-violet);
}

.dh-ai-thinking__hdr:hover { background: rgba(167,139,250,.06); }

.dh-ai-thinking__spinner {
  display: inline-block;
  animation: dh-ai-spin 1s linear infinite;
  font-size: .9rem;
}

.dh-ai-thinking__done {
  color: var(--dh-ai-green);
}

@keyframes dh-ai-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.dh-ai-thinking__meta {
  margin-left: auto;
  font-size: .68rem;
  font-family: var(--dh-ai-mono);
  color: var(--dh-color-text-muted, #64748b);
  font-weight: 400;
}

.dh-ai-thinking__chevron {
  font-size: .7rem;
  transition: transform .2s;
  margin-left: .1rem;
}

.dh-ai-thinking.is-open .dh-ai-thinking__chevron { transform: rotate(180deg); }

.dh-ai-thinking__body {
  display: none;
  padding: .75rem .9rem;
  border-top: 1px solid var(--dh-ai-violet-border);
  font-size: .78rem;
  line-height: 1.7;
  color: var(--dh-color-text-muted, #94a3b8);
  font-family: var(--dh-ai-mono);
}

.dh-ai-thinking.is-open .dh-ai-thinking__body { display: block; }

/* ── Tool Use ── */

.dh-ai-tool-call {
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-left: 3px solid var(--dh-ai-accent);
  border-radius: var(--dh-ai-r-md);
  overflow: hidden;
}

.dh-ai-tool-call + .dh-ai-tool-call { margin-top: .5rem; }

.dh-ai-tool-call__hdr {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .55rem .85rem;
  border-bottom: 1px solid var(--dh-ai-border);
  font-size: .75rem;
}

.dh-ai-tool-call__name {
  font-family: var(--dh-ai-mono);
  font-weight: 600;
  color: var(--dh-ai-accent);
}

.dh-ai-tool-call__id {
  font-family: var(--dh-ai-mono);
  font-size: .68rem;
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-tool-call__body {
  padding: .55rem .85rem;
  font-family: var(--dh-ai-mono);
  font-size: .75rem;
  line-height: 1.6;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-tool-call__key  { color: var(--dh-ai-cyan); }

.dh-ai-tool-call__val  { color: var(--dh-ai-green); }

.dh-ai-tool-call__result {
  padding: .55rem .85rem;
  background: rgba(0,0,0,.2);
  border-top: 1px solid var(--dh-ai-border);
  font-size: .75rem;
  color: var(--dh-color-text-muted, #94a3b8);
}

.dh-ai-tool-call__result-lbl {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--dh-color-text-muted, #64748b);
  margin-bottom: .3rem;
}

/* ── Citations / Grounding ── */

.dh-ai-citation {
  display: inline;
  position: relative;
  cursor: help;
}

.dh-ai-citation__text {
  background: var(--dh-ai-cyan-dim);
  border-bottom: 1px dashed var(--dh-ai-cyan);
  color: var(--dh-ai-cyan);
  padding: .05rem .1rem;
}

.dh-ai-citation__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px; height: 14px;
  background: var(--dh-ai-cyan);
  color: #0f172a;
  border-radius: 50%;
  font-size: .6rem;
  font-weight: 700;
  vertical-align: super;
  margin-left: 1px;
}

.dh-ai-citation-panel {
  margin-top: .85rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.dh-ai-cite-item {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  padding: .6rem .85rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-md);
}

.dh-ai-cite-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--dh-ai-cyan);
  color: #0f172a;
  font-size: .65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.dh-ai-cite-src {
  font-size: .78rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-cite-url {
  font-size: .7rem;
  color: var(--dh-ai-cyan);
  font-family: var(--dh-ai-mono);
  margin-top: .15rem;
}

/* ── Canvas / Artifact ── */

.dh-ai-canvas {
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-xl);
  overflow: hidden;
}

.dh-ai-canvas__hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .5rem .75rem;
  border-bottom: 1px solid var(--dh-ai-border);
  gap: .5rem;
}

.dh-ai-canvas__tabs {
  display: flex;
  gap: .2rem;
}

.dh-ai-canvas__tab {
  padding: .3rem .75rem;
  border-radius: var(--dh-ai-r-md);
  font-size: .73rem;
  font-weight: 600;
  color: var(--dh-color-text-muted, #94a3b8);
  cursor: pointer;
  transition: background .15s, color .15s;
  border: none;
  background: transparent;
}

.dh-ai-canvas__tab.is-active {
  background: var(--dh-ai-surface-hi);
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-canvas__actions {
  display: flex;
  gap: .3rem;
}

.dh-ai-canvas__act-btn {
  padding: .3rem .6rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-md);
  font-size: .68rem;
  color: var(--dh-color-text-muted, #94a3b8);
  cursor: pointer;
  transition: border-color .15s, color .15s;
}

.dh-ai-canvas__act-btn:hover {
  border-color: var(--dh-ai-border-hi);
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-canvas__body {
  padding: 1rem 1.1rem;
  font-family: var(--dh-ai-mono);
  font-size: .78rem;
  line-height: 1.7;
  color: var(--dh-color-text, #e2e8f0);
  min-height: 140px;
  overflow-x: auto;
}

.dh-ai-canvas__body--preview {
  font-family: var(--dh-font-body, system-ui);
}

.dh-ai-canvas__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .45rem .85rem;
  border-top: 1px solid var(--dh-ai-border);
  font-size: .68rem;
  font-family: var(--dh-ai-mono);
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-canvas__lang {
  color: var(--dh-ai-accent);
  font-weight: 600;
}

/* Code syntax colours (canvas/code blocks) */

.dh-ai-code-kw  { color: var(--dh-ai-violet); }

.dh-ai-code-fn  { color: var(--dh-ai-cyan); }

.dh-ai-code-str { color: var(--dh-ai-green); }

.dh-ai-code-cmt { color: var(--dh-color-text-muted, #64748b); font-style: italic; }

.dh-ai-code-num { color: var(--dh-ai-accent); }

/* ── Image Generation Preview ── */

.dh-ai-image-gen {
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
  overflow: hidden;
}

.dh-ai-image-gen__hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .6rem .9rem;
  border-bottom: 1px solid var(--dh-ai-border);
  font-size: .75rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-image-gen__stage {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--dh-color-bg, #0f1117);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.dh-ai-image-gen__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-image-gen__progress-bar {
  position: absolute;
  bottom: 0; left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--dh-color-primary, #6c63ff), var(--dh-ai-cyan));
  transition: width .4s ease;
  border-radius: 0 2px 0 0;
}

.dh-ai-image-gen__meta {
  padding: .5rem .9rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .68rem;
  font-family: var(--dh-ai-mono);
  color: var(--dh-color-text-muted, #64748b);
  border-top: 1px solid var(--dh-ai-border);
}

/* ── Audio / TTS Player ── */

.dh-ai-audio-player {
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
  padding: .85rem 1rem;
  display: flex;
  align-items: center;
  gap: .85rem;
}

.dh-ai-audio-player__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  background: var(--dh-color-primary, #6c63ff);
  border: none;
  border-radius: 50%;
  font-size: 1rem;
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
  transition: opacity .15s;
}

.dh-ai-audio-player__btn:hover { opacity: .85; }

.dh-ai-audio-player__waveform {
  flex: 1;
  height: 32px;
  background: repeating-linear-gradient(
    90deg,
    var(--dh-ai-border-hi) 0,
    var(--dh-ai-border-hi) 2px,
    transparent 2px,
    transparent 6px
  );
  border-radius: var(--dh-ai-r);
  position: relative;
  overflow: hidden;
}

.dh-ai-audio-player__progress {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  background: rgba(108,99,255,.25);
  border-right: 2px solid var(--dh-color-primary, #6c63ff);
  border-radius: var(--dh-ai-r);
  transition: width .2s;
}

.dh-ai-audio-player__meta {
  flex-shrink: 0;
  text-align: right;
}

.dh-ai-audio-player__time {
  font-family: var(--dh-ai-mono);
  font-size: .75rem;
  color: var(--dh-color-text, #e2e8f0);
  font-weight: 600;
}

.dh-ai-audio-player__voice {
  font-size: .65rem;
  color: var(--dh-color-text-muted, #64748b);
  margin-top: .1rem;
}

/* ============================================================
   SECTION 3 — CONTROLS + AGENTIC
   ============================================================ */

/* ── Model Selector ── */

.dh-ai-model-selector {
  position: relative;
  display: inline-block;
}

.dh-ai-model-btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .5rem .85rem;
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-lg);
  font-size: .82rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
  cursor: pointer;
  transition: border-color .2s;
  white-space: nowrap;
}

.dh-ai-model-btn:hover { border-color: var(--dh-color-primary, #6c63ff); }

.dh-ai-model-btn.is-open { border-color: var(--dh-color-primary, #6c63ff); box-shadow: 0 0 0 3px rgba(108,99,255,.12); }

.dh-ai-model-btn__chevron {
  font-size: .6rem;
  transition: transform .2s;
}

.dh-ai-model-btn.is-open .dh-ai-model-btn__chevron { transform: rotate(180deg); }

.dh-ai-model-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 280px;
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,.5);
  z-index: 300;
  overflow: hidden;
}

.dh-ai-model-dropdown.is-open { display: block; }

.dh-ai-model-option {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .7rem .9rem;
  cursor: pointer;
  transition: background .12s;
}

.dh-ai-model-option:hover { background: var(--dh-ai-surface-hi); }

.dh-ai-model-option.is-selected { background: rgba(108,99,255,.1); }

.dh-ai-model-option__icon {
  width: 28px; height: 28px;
  border-radius: var(--dh-ai-r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  background: var(--dh-ai-surface-hi);
  flex-shrink: 0;
}

.dh-ai-model-option__name {
  font-size: .82rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-model-option__desc {
  font-size: .7rem;
  color: var(--dh-color-text-muted, #64748b);
  margin-top: .1rem;
}

.dh-ai-model-option__tier {
  margin-left: auto;
}

/* ── Gen Parameters ── */

.dh-ai-gen-params {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.dh-ai-param {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .3rem .85rem;
  align-items: center;
}

.dh-ai-param__label {
  font-size: .75rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-param__val {
  font-family: var(--dh-ai-mono);
  font-size: .75rem;
  font-weight: 700;
  color: var(--dh-ai-accent);
  text-align: right;
  min-width: 36px;
}

.dh-ai-param__desc {
  font-size: .68rem;
  color: var(--dh-color-text-muted, #64748b);
  grid-column: 1 / -1;
  margin-top: -.2rem;
}

.dh-ai-param__slider {
  grid-column: 1 / -1;
  -webkit-appearance: none;
  -moz-appearance: none;
       appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--dh-ai-border-hi);
  outline: none;
  cursor: pointer;
}

.dh-ai-param__slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--dh-color-primary, #6c63ff);
  border: 2px solid var(--dh-color-surface, #1a1d27);
  box-shadow: 0 0 0 2px var(--dh-color-primary, #6c63ff);
  cursor: grab;
  -webkit-transition: box-shadow .15s;
  transition: box-shadow .15s;
}

.dh-ai-param__slider::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--dh-color-primary, #6c63ff);
  border: 2px solid var(--dh-color-surface, #1a1d27);
  cursor: grab;
}

/* ── Context Window ── */

.dh-ai-context-bar {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.dh-ai-context-bar__hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .75rem;
}

.dh-ai-context-bar__label { font-weight: 600; color: var(--dh-color-text, #e2e8f0); }

.dh-ai-context-bar__count { font-family: var(--dh-ai-mono); color: var(--dh-color-text-muted, #64748b); }

.dh-ai-context-bar__track {
  height: 8px;
  background: var(--dh-ai-border-hi);
  border-radius: 4px;
  overflow: hidden;
}

.dh-ai-context-bar__fill {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--dh-color-primary, #6c63ff), var(--dh-ai-cyan));
  transition: width .4s ease;
}

.dh-ai-context-bar__fill--warn {
  background: linear-gradient(90deg, var(--dh-ai-accent), var(--dh-ai-red));
}

.dh-ai-context-breakdown {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: .25rem;
}

.dh-ai-context-breakdown__item {
  display: flex;
  align-items: center;
  gap: .3rem;
  font-size: .68rem;
  color: var(--dh-color-text-muted, #64748b);
}

.dh-ai-context-breakdown__dot {
  width: 8px; height: 8px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* ── Persona / Tone ── */

.dh-ai-persona-pills {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
}

.dh-ai-persona-pill {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .4rem .85rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 500;
  color: var(--dh-color-text-muted, #94a3b8);
  cursor: pointer;
  transition: all .15s;
}

.dh-ai-persona-pill:hover {
  border-color: var(--dh-ai-border-hi);
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-persona-pill.is-active {
  background: rgba(108,99,255,.12);
  border-color: var(--dh-color-primary, #6c63ff);
  color: var(--dh-color-primary, #6c63ff);
}

/* ── Step Tracker ── */

.dh-ai-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.dh-ai-step {
  display: flex;
  gap: .85rem;
  position: relative;
}

.dh-ai-step:not(:last-child) .dh-ai-step__line {
  position: absolute;
  left: 13px;
  top: 28px;
  bottom: -4px;
  width: 2px;
  background: var(--dh-ai-border-hi);
}

.dh-ai-step__icon-wrap {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.dh-ai-step__icon {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  font-weight: 700;
  border: 2px solid var(--dh-ai-border-hi);
  background: var(--dh-color-surface, #1a1d27);
  color: var(--dh-color-text-muted, #64748b);
  flex-shrink: 0;
  z-index: 1;
}

.dh-ai-step--done .dh-ai-step__icon {
  background: var(--dh-ai-green-dim);
  border-color: var(--dh-ai-green);
  color: var(--dh-ai-green);
}

.dh-ai-step--active .dh-ai-step__icon {
  background: rgba(108,99,255,.15);
  border-color: var(--dh-color-primary, #6c63ff);
  color: var(--dh-color-primary, #6c63ff);
  animation: dh-ai-step-pulse 1.5s ease-in-out infinite;
}

.dh-ai-step--error .dh-ai-step__icon {
  background: var(--dh-ai-red-dim);
  border-color: var(--dh-ai-red);
  color: var(--dh-ai-red);
}

@keyframes dh-ai-step-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(108,99,255,.3); }
  50%       { box-shadow: 0 0 0 6px rgba(108,99,255,0); }
}

.dh-ai-step__body {
  padding: .1rem 0 1rem;
  flex: 1;
}

.dh-ai-step__title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--dh-color-text, #e2e8f0);
  line-height: 1.8;
}

.dh-ai-step__desc {
  font-size: .72rem;
  color: var(--dh-color-text-muted, #64748b);
  line-height: 1.5;
}

/* ── Approval Gate ── */

.dh-ai-approval {
  background: var(--dh-ai-accent-dim);
  border: 1px solid var(--dh-ai-accent-border);
  border-radius: var(--dh-ai-r-lg);
  padding: 1rem 1.1rem;
}

.dh-ai-approval__hdr {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .82rem;
  font-weight: 700;
  color: var(--dh-ai-accent);
  margin-bottom: .5rem;
}

.dh-ai-approval__body {
  font-size: .8rem;
  color: var(--dh-color-text-muted, #94a3b8);
  line-height: 1.6;
  margin-bottom: .85rem;
}

.dh-ai-approval__action {
  display: flex;
  gap: .5rem;
}

.dh-ai-approval__btn {
  padding: .45rem 1rem;
  border-radius: var(--dh-ai-r-md);
  font-size: .78rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity .15s;
}

.dh-ai-approval__btn:hover { opacity: .85; }

.dh-ai-approval__btn--approve {
  background: var(--dh-ai-green-dim);
  border-color: var(--dh-ai-green-border);
  color: var(--dh-ai-green);
}

.dh-ai-approval__btn--reject {
  background: var(--dh-ai-red-dim);
  border-color: var(--dh-ai-red-border);
  color: var(--dh-ai-red);
}

/* ── History Sidebar ── */

.dh-ai-history {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.dh-ai-history__search {
  width: 100%;
  padding: .55rem .75rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-md);
  font-size: .78rem;
  color: var(--dh-color-text, #e2e8f0);
  outline: none;
  margin-bottom: .65rem;
}

.dh-ai-history__search:focus { border-color: var(--dh-color-primary, #6c63ff); }

.dh-ai-history__group-label {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--dh-color-text-muted, #64748b);
  padding: .4rem .2rem .2rem;
}

.dh-ai-history-item {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding: .55rem .65rem;
  border-radius: var(--dh-ai-r-md);
  cursor: pointer;
  transition: background .12s;
}

.dh-ai-history-item:hover,
.dh-ai-history-item.is-active { background: var(--dh-ai-surface-hi); }

.dh-ai-history-item__icon {
  font-size: .85rem;
  flex-shrink: 0;
  margin-top: .1rem;
}

.dh-ai-history-item__title {
  font-size: .78rem;
  font-weight: 500;
  color: var(--dh-color-text, #e2e8f0);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.dh-ai-history-item__time {
  font-size: .65rem;
  color: var(--dh-color-text-muted, #64748b);
  flex-shrink: 0;
}

/* ── Memory Panel ── */

.dh-ai-memory {
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.dh-ai-memory-item {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding: .65rem .85rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-md);
  transition: border-color .15s;
}

.dh-ai-memory-item:hover { border-color: var(--dh-ai-border-hi); }

.dh-ai-memory-item__icon { flex-shrink: 0; font-size: .85rem; }

.dh-ai-memory-item__text {
  flex: 1;
  font-size: .78rem;
  line-height: 1.5;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-memory-item__actions {
  display: flex;
  gap: .3rem;
  flex-shrink: 0;
}

.dh-ai-memory-item__btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: .78rem;
  color: var(--dh-color-text-muted, #64748b);
  padding: .1rem .2rem;
  border-radius: var(--dh-ai-r);
  transition: color .15s, background .15s;
}

.dh-ai-memory-item__btn:hover { color: var(--dh-color-text, #e2e8f0); background: var(--dh-ai-surface-hi); }

/* ── Thread Branching ── */

.dh-ai-thread-branches {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.dh-ai-thread-branch {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .55rem .85rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-left: 3px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-md);
  cursor: pointer;
  transition: border-color .15s, background .15s;
  font-size: .78rem;
}

.dh-ai-thread-branch:hover { background: var(--dh-ai-surface-hi); border-left-color: var(--dh-color-primary, #6c63ff); }

.dh-ai-thread-branch.is-active {
  background: rgba(108,99,255,.08);
  border-left-color: var(--dh-color-primary, #6c63ff);
  border-color: rgba(108,99,255,.2);
}

.dh-ai-thread-branch__label {
  flex: 1;
  font-weight: 500;
  color: var(--dh-color-text, #e2e8f0);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dh-ai-thread-branch__meta {
  font-size: .68rem;
  color: var(--dh-color-text-muted, #64748b);
  flex-shrink: 0;
}

/* ── Conversation Turns ── */

.dh-ai-turns {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.dh-ai-turn {
  display: flex;
  gap: .75rem;
  max-width: 100%;
}

.dh-ai-turn--user { flex-direction: row-reverse; }

.dh-ai-turn__avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  flex-shrink: 0;
  background: var(--dh-ai-surface-hi);
  border: 1px solid var(--dh-ai-border);
}

.dh-ai-turn--user .dh-ai-turn__avatar {
  background: rgba(108,99,255,.15);
  border-color: rgba(108,99,255,.3);
}

.dh-ai-turn__bubble {
  max-width: 80%;
  padding: .65rem .9rem;
  border-radius: var(--dh-ai-r-lg);
  font-size: .83rem;
  line-height: 1.65;
}

.dh-ai-turn--assistant .dh-ai-turn__bubble {
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  color: var(--dh-color-text, #e2e8f0);
  border-radius: 4px var(--dh-ai-r-lg) var(--dh-ai-r-lg) var(--dh-ai-r-lg);
}

.dh-ai-turn--user .dh-ai-turn__bubble {
  background: rgba(108,99,255,.15);
  border: 1px solid rgba(108,99,255,.25);
  color: var(--dh-color-text, #e2e8f0);
  border-radius: var(--dh-ai-r-lg) 4px var(--dh-ai-r-lg) var(--dh-ai-r-lg);
  text-align: right;
}

.dh-ai-turn__meta {
  font-size: .65rem;
  color: var(--dh-color-text-muted, #64748b);
  margin-top: .3rem;
  font-family: var(--dh-ai-mono);
}

.dh-ai-turn--user .dh-ai-turn__meta { text-align: right; }

/* ============================================================
   SECTION 4 — STATUS + SAFETY
   ============================================================ */

/* ── Feedback ── */

.dh-ai-feedback {
  display: flex;
  align-items: center;
  gap: .35rem;
  flex-wrap: wrap;
}

.dh-ai-feedback-btn {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  padding: .3rem .6rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: 100px;
  font-size: .75rem;
  color: var(--dh-color-text-muted, #94a3b8);
  cursor: pointer;
  transition: all .15s;
}

.dh-ai-feedback-btn:hover { border-color: var(--dh-ai-border-hi); color: var(--dh-color-text, #e2e8f0); }

.dh-ai-feedback-btn.is-active--up {
  background: var(--dh-ai-green-dim);
  border-color: var(--dh-ai-green-border);
  color: var(--dh-ai-green);
}

.dh-ai-feedback-btn.is-active--down {
  background: var(--dh-ai-red-dim);
  border-color: var(--dh-ai-red-border);
  color: var(--dh-ai-red);
}

/* ── Confidence Indicator ── */

.dh-ai-confidence {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.dh-ai-confidence__hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .75rem;
}

.dh-ai-confidence__label { color: var(--dh-color-text-muted, #64748b); }

.dh-ai-confidence__score {
  font-family: var(--dh-ai-mono);
  font-weight: 700;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-confidence__track {
  height: 6px;
  background: var(--dh-ai-border-hi);
  border-radius: 3px;
  overflow: hidden;
}

.dh-ai-confidence__fill {
  height: 100%;
  border-radius: 3px;
  transition: width .4s ease;
}

.dh-ai-confidence__fill--high   { background: var(--dh-ai-green); }

.dh-ai-confidence__fill--medium { background: var(--dh-ai-accent); }

.dh-ai-confidence__fill--low    { background: var(--dh-ai-red); }

.dh-ai-confidence__levels {
  display: flex;
  justify-content: space-between;
  font-size: .62rem;
  color: var(--dh-color-text-muted, #64748b);
  font-family: var(--dh-ai-mono);
}

/* ── Skeleton Loaders ── */

.dh-ai-skeleton {
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-lg);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.dh-ai-skeleton-line {
  height: .75rem;
  border-radius: 100px;
  background: var(--dh-ai-border-hi);
  animation: dh-ai-shimmer 1.5s ease-in-out infinite;
}

.dh-ai-skeleton-line--sm  { width: 40%; }

.dh-ai-skeleton-line--md  { width: 70%; }

.dh-ai-skeleton-line--lg  { width: 90%; }

.dh-ai-skeleton-line--xl  { width: 100%; }

.dh-ai-skeleton-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--dh-ai-border-hi);
  animation: dh-ai-shimmer 1.5s ease-in-out infinite;
  flex-shrink: 0;
}

.dh-ai-skeleton-block {
  height: 80px;
  border-radius: var(--dh-ai-r-md);
  background: var(--dh-ai-border-hi);
  animation: dh-ai-shimmer 1.5s ease-in-out infinite;
}

@keyframes dh-ai-shimmer {
  0%   { opacity: 1; }
  50%  { opacity: .4; }
  100% { opacity: 1; }
}

/* ── Toast Queue ── */

.dh-ai-toast-queue {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  z-index: 9999;
  pointer-events: none;
}

.dh-ai-toast {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .7rem 1rem;
  background: var(--dh-color-surface, #1a1d27);
  border: 1px solid var(--dh-ai-border-hi);
  border-radius: var(--dh-ai-r-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,.5);
  font-size: .8rem;
  color: var(--dh-color-text, #e2e8f0);
  pointer-events: auto;
  min-width: 240px;
  max-width: 360px;
  animation: dh-ai-toast-in .25s ease;
}

.dh-ai-toast.is-leaving {
  animation: dh-ai-toast-out .25s ease forwards;
}

@keyframes dh-ai-toast-in {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);   opacity: 1; }
}

@keyframes dh-ai-toast-out {
  from { transform: translateX(0);   opacity: 1; }
  to   { transform: translateX(100%); opacity: 0; }
}

.dh-ai-toast__icon { font-size: 1rem; flex-shrink: 0; }

.dh-ai-toast__msg  { flex: 1; line-height: 1.4; }

.dh-ai-toast__close {
  background: transparent;
  border: none;
  font-size: .75rem;
  color: var(--dh-color-text-muted, #64748b);
  cursor: pointer;
  padding: .1rem .2rem;
  border-radius: var(--dh-ai-r);
  flex-shrink: 0;
}

.dh-ai-toast--success { border-left: 3px solid var(--dh-ai-green); }

.dh-ai-toast--error   { border-left: 3px solid var(--dh-ai-red); }

.dh-ai-toast--info    { border-left: 3px solid var(--dh-ai-cyan); }

.dh-ai-toast--warn    { border-left: 3px solid var(--dh-ai-accent); }

/* ── Refusal Block ── */

.dh-ai-refusal {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  padding: 1rem 1.1rem;
  background: var(--dh-ai-red-dim);
  border: 1px solid var(--dh-ai-red-border);
  border-radius: var(--dh-ai-r-lg);
}

.dh-ai-refusal__icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

.dh-ai-refusal__title {
  font-size: .82rem;
  font-weight: 700;
  color: var(--dh-ai-red);
  margin-bottom: .25rem;
}

.dh-ai-refusal__body {
  font-size: .78rem;
  color: var(--dh-color-text-muted, #94a3b8);
  line-height: 1.55;
}

/* ── Hallucination Warning ── */

.dh-ai-hallucination {
  display: flex;
  gap: .75rem;
  align-items: flex-start;
  padding: .85rem 1rem;
  background: var(--dh-ai-accent-dim);
  border: 1px solid var(--dh-ai-accent-border);
  border-radius: var(--dh-ai-r-lg);
}

.dh-ai-hallucination__icon { font-size: 1rem; flex-shrink: 0; }

.dh-ai-hallucination__title {
  font-size: .78rem;
  font-weight: 700;
  color: var(--dh-ai-accent);
  margin-bottom: .2rem;
}

.dh-ai-hallucination__body {
  font-size: .75rem;
  color: var(--dh-color-text-muted, #94a3b8);
  line-height: 1.55;
}

/* ── Usage Dashboard ── */

.dh-ai-usage {
  display: flex;
  flex-direction: column;
  gap: .65rem;
}

.dh-ai-usage-row {
  display: flex;
  align-items: center;
  gap: .85rem;
}

.dh-ai-usage-row__label {
  width: 100px;
  flex-shrink: 0;
  font-size: .72rem;
  color: var(--dh-color-text-muted, #94a3b8);
}

.dh-ai-usage-row__track {
  flex: 1;
  height: 6px;
  background: var(--dh-ai-border-hi);
  border-radius: 3px;
  overflow: hidden;
}

.dh-ai-usage-row__fill {
  height: 100%;
  border-radius: 3px;
  transition: width .4s ease;
}

.dh-ai-usage-row__val {
  width: 60px;
  flex-shrink: 0;
  text-align: right;
  font-family: var(--dh-ai-mono);
  font-size: .72rem;
  font-weight: 600;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-usage-summary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: .65rem;
  padding-top: .5rem;
  border-top: 1px solid var(--dh-ai-border);
}

.dh-ai-usage-stat {
  padding: .6rem .75rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: var(--dh-ai-r-md);
}

.dh-ai-usage-stat__val {
  font-family: var(--dh-ai-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-usage-stat__label {
  font-size: .68rem;
  color: var(--dh-color-text-muted, #64748b);
  margin-top: .15rem;
}

/* ── Latency Indicator ── */

.dh-ai-latency {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .55rem .85rem;
  background: var(--dh-ai-surface);
  border: 1px solid var(--dh-ai-border);
  border-radius: 100px;
  font-size: .72rem;
  font-family: var(--dh-ai-mono);
}

.dh-ai-latency__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
  animation: dh-ai-latency-pulse 2s ease-in-out infinite;
}

.dh-ai-latency__dot--fast   { background: var(--dh-ai-green); }

.dh-ai-latency__dot--medium { background: var(--dh-ai-accent); }

.dh-ai-latency__dot--slow   { background: var(--dh-ai-red); }

@keyframes dh-ai-latency-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .4; }
}

.dh-ai-latency__val {
  font-weight: 700;
  color: var(--dh-color-text, #e2e8f0);
}

.dh-ai-latency__label { color: var(--dh-color-text-muted, #64748b); }

.dh-ai-latency__sep {
  width: 1px; height: 12px;
  background: var(--dh-ai-border-hi);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 640px) {
  .dh-ai-prompt-toolbar { flex-wrap: wrap; gap: .4rem; }
  .dh-ai-canvas__actions { display: none; }
  .dh-ai-turn__bubble { max-width: 95%; }
  .dh-ai-toast-queue { left: 1rem; right: 1rem; }
  .dh-ai-toast { min-width: 0; }
}