/* MiniChat (Stage 2) — v5.3 · 左 chat 右选定 artifact 双栏 */

.view-brand-chat,
.view-arch-chat,
.view-discovery-chat {
  flex-direction: column;
  overflow: hidden;
  background: var(--paper);
}

.mc-mount-target {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.mc-root {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  background: var(--paper);
}

.mc-h {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--ink-08);
  background: var(--paper);
  flex-shrink: 0;
}
.mc-h-l {
  display: flex;
  align-items: center;
  gap: 14px;
}
.mc-back {
  background: none;
  border: 1px solid var(--ink-12);
  color: var(--ink-60);
  padding: 7px 12px 7px 8px;
  border-radius: 8px;
  font-size: 12.5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: inherit;
  transition: all 160ms;
}
.mc-back:hover {
  color: var(--ink);
  border-color: var(--ink-24);
  background: var(--bone);
}
.mc-h-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.mc-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-60);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.mc-dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
}
.mc-title {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 19px;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.01em;
  font-weight: 600;
}
.mc-status-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ok);
  letter-spacing: 0.04em;
  padding: 4px 9px;
  background: rgba(30,138,94,0.08);
  border-radius: 999px;
}

/* ===== "把结果交给下一步" handoff bar (matches the gold receive-banner) ===== */
.mc-h-r {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.mc-handoff {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 14px;
  border-left: 1px solid var(--ink-12);
}
.mc-handoff-l {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #8a6d2a;
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.mc-handoff-btn {
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  color: #8a6d2a;
  background: rgba(184,137,58,0.10);
  border: 1px solid rgba(184,137,58,0.42);
  padding: 7px 13px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 150ms;
  white-space: nowrap;
}
.mc-handoff-btn:hover {
  background: #b8893a;
  color: #fff;
  border-color: #b8893a;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(184,137,58,0.28);
}
.mc-share-btn {
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--ink);
  padding: 7px 13px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 150ms;
  white-space: nowrap;
}
.mc-share-btn:hover { filter: brightness(1.18); transform: translateY(-1px); }

.mc-split {
  display: grid;
  grid-template-columns: 420px 1fr;
  flex: 1;
  min-height: 0;
}

/* ===== 左侧 chat ===== */
.mc-chat {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--ink-08);
  background: var(--bone);
  min-height: 0;
}
.mc-chat-stream {
  flex: 1;
  overflow-y: auto;
  padding: 20px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mc-msg {
  display: flex;
  align-items: flex-start;
  gap: 9px;
}
.mc-msg-user {
  flex-direction: row-reverse;
}
.mc-avatar {
  width: 28px; height: 28px;
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600;
  background: var(--accent);
  color: var(--paper);
  font-size: 12px;
  flex-shrink: 0;
}
.mc-av-user {
  background: var(--ink);
}
.mc-bubble {
  max-width: 86%;
  padding: 10px 14px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 11px;
  font-size: 13.5px;
  line-height: 1.55;
  box-shadow: 0 1px 2px rgba(20,20,26,0.04);
}
.mc-msg-user .mc-bubble {
  background: var(--ink);
  color: var(--paper);
}
.mc-chat-quick {
  padding: 10px 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-top: 1px solid var(--ink-08);
  background: var(--paper);
}
.mc-quick {
  background: var(--bone);
  border: 1px solid var(--ink-08);
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 11.5px;
  color: var(--ink-60);
  cursor: pointer;
  font-family: inherit;
  transition: all 160ms;
}
.mc-quick:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}
.mc-chat-input {
  display: flex;
  gap: 8px;
  padding: 12px 16px 16px;
  background: var(--paper);
  border-top: 1px solid var(--ink-08);
}
.mc-chat-input input {
  flex: 1;
  background: var(--bone);
  border: 1px solid var(--ink-12);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--ink);
  outline: none;
  font-family: inherit;
  transition: border-color 160ms;
}
.mc-chat-input input:focus {
  border-color: var(--accent);
  background: var(--paper);
}
.mc-send {
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 12.5px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: background 160ms;
}
.mc-send:hover { background: var(--accent); }

/* ===== 右侧 artifact ===== */
.mc-artifact {
  overflow-y: auto;
  padding: 28px 32px 40px;
  background: var(--paper);
  transition: opacity 200ms var(--ease);
}
.mc-art-flash {
  animation: mcFlash 600ms var(--ease);
}
@keyframes mcFlash {
  0% { background: rgba(209,74,36,0.06); }
  100% { background: var(--paper); }
}
.mc-art-h {
  margin-bottom: 28px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--ink-08);
}
.mc-art-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-60);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.mc-art-name {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 36px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 6px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.mc-art-slogan {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 17px;
  color: var(--ink-60);
}
.mc-art-section {
  margin-bottom: 32px;
}
.mc-art-section-h {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-60);
  margin-bottom: 12px;
}

/* Brand artifact specific */
.mc-art-palette {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.mc-art-color {
  aspect-ratio: 1;
  border-radius: 10px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 8px;
  position: relative;
  border: 1px solid rgba(0,0,0,0.04);
}
.mc-art-color-hex {
  font-family: var(--font-mono);
  font-size: 9.5px;
  background: rgba(255,255,255,0.85);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--ink);
  letter-spacing: 0.03em;
}
.mc-art-font {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 18px;
  background: var(--bone);
  border-radius: 10px;
}
.mc-art-font-row {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 14px;
  align-items: center;
}
.mc-art-font-row .lbl {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-60);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.mc-art-font-h {
  font-size: 26px;
  color: var(--ink);
}
.mc-art-font-b {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-60);
}
.mc-art-scenes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.mc-art-scene {
  aspect-ratio: 16/9;
  border-radius: 10px;
  padding: 16px 18px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  transition: transform 200ms;
}
.mc-art-scene:hover { transform: translateY(-2px); }
.mc-art-scene-tag {
  position: absolute;
  top: 10px; left: 12px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  background: rgba(255,255,255,0.8);
  color: var(--ink);
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.mc-art-scene-content {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 2px;
}
.mc-art-scene-sub {
  font-size: 11.5px;
  opacity: 0.9;
}

/* Architecture artifact */
.mc-art-arch-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-60);
  margin-top: 4px;
}
.mc-art-arch-graph {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 18px;
  background: var(--bone);
  border-radius: 10px;
}
.mc-art-arch-node {
  background: var(--paper);
  border: 1px solid var(--ink-12);
  padding: 7px 13px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink);
}
.mc-art-arch-arrow {
  color: var(--ink-40);
  font-size: 11px;
}
.mc-art-bom {
  border: 1px solid var(--ink-08);
  border-radius: 10px;
  overflow: hidden;
}
.mc-art-bom-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  font-size: 13px;
  border-bottom: 1px dashed var(--ink-08);
  background: var(--paper);
}
.mc-art-bom-row:last-child { border-bottom: none; }
.mc-art-bom-row .bom-item {
  color: var(--ink);
}
.mc-art-bom-row .bom-cost {
  font-family: var(--font-mono);
  color: var(--ink-60);
  font-size: 12px;
}
.mc-art-bom-total {
  background: var(--ink) !important;
  color: var(--paper);
}
.mc-art-bom-total .bom-item,
.mc-art-bom-total .bom-cost {
  color: var(--paper);
  font-weight: 600;
  font-size: 14px;
}
.mc-art-arch-risk {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.risk-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 12px;
  align-items: center;
  font-size: 12.5px;
}
.risk-lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-60);
  letter-spacing: 0.04em;
}
.risk-bar {
  height: 8px;
  background: var(--ink-08);
  border-radius: 999px;
  overflow: hidden;
}
.risk-bar > span {
  display: block;
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 400ms var(--ease);
}

/* Discovery artifact */
.mc-art-status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  padding: 3px 10px;
  border: 1px solid;
  border-radius: 999px;
  margin-top: 8px;
}
.mc-art-week-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.mc-cell {
  background: var(--bone);
  padding: 14px 16px;
  border-radius: 10px;
}
.mc-cell .lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-60);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.mc-cell .val {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 26px;
  font-weight: 600;
  color: var(--ink);
}
.mc-art-quotes {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mc-art-quote {
  padding: 12px 16px;
  background: var(--bone);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
}
.mc-art-quote .q-txt {
  font-style: italic;
  color: var(--ink);
  font-size: 13px;
  margin-bottom: 4px;
  line-height: 1.55;
}
.mc-art-quote .q-src {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-60);
}
.mc-art-next,
.mc-art-top-pain {
  padding: 14px 18px;
  background: var(--bone);
  border-radius: 10px;
  font-size: 13.5px;
  color: var(--ink);
  line-height: 1.6;
}
.mc-art-top-pain {
  background: rgba(212,156,11,0.08);
  border-left: 3px solid #B07E0A;
}

/* mobile */
@media (max-width: 900px) {
  .mc-split {
    grid-template-columns: 1fr;
    grid-template-rows: 280px 1fr;
  }
  .mc-chat {
    border-right: none;
    border-bottom: 1px solid var(--ink-08);
  }
  .mc-artifact {
    padding: 22px 18px 30px;
  }
  .mc-art-name { font-size: 28px; }
  .mc-art-scenes { grid-template-columns: 1fr; }
  .mc-h { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
  .mc-status-tag { display: none; }
}

/* Stage CTA — fixed bottom-right on each Studio view (Stage 1 → Stage 2 桥梁) */
.stage-cta {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: var(--accent);
  color: var(--paper);
  border: none;
  border-radius: 999px;
  padding: 14px 22px 14px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 8px 24px rgba(209,74,36,0.32);
  transition: all 220ms var(--ease);
  z-index: 80;
}
.stage-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(209,74,36,0.4);
}
.stage-cta-icon {
  width: 26px; height: 26px;
  background: rgba(255,255,255,0.18);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  font-weight: 700;
}
.stage-cta-lbl { line-height: 1; }
@media (max-width: 760px) {
  .stage-cta {
    bottom: 80px; right: 14px;
    padding: 11px 16px 11px 14px;
    font-size: 12.5px;
  }
}