/* ============================================================================
   shell-v2.css — product shell visual system
   References: Kimi (blue/light), Claude (calm rail), GPT (minimal nav),
   Grok (centered empty), Perplexity (clean surfaces).
   Loaded last. Tokens still from kimi-light.css.
   ============================================================================ */

html, body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: -0.011em;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
#sidebar {
  width: var(--nav-width, 260px);
  background: var(--bg-nav) !important;
  border-right: 1px solid var(--border);
}
.sidebar-header { padding: 16px 14px 8px !important; }
.sidebar-brand .brand-logo {
  width: 28px; height: 28px; border-radius: 8px !important;
  background: var(--accent) !important; color: #fff !important;
  font-size: 11px; font-weight: 700; letter-spacing: .02em;
  display: inline-grid; place-items: center;
}
.sidebar-brand .brand-name {
  font-size: 14px; font-weight: 650; letter-spacing: -.02em; color: var(--text);
}
.sidebar-collapse-btn {
  opacity: .55; border-radius: 8px !important;
}
.sidebar-collapse-btn:hover { opacity: 1; background: var(--bg-hover); }

.new-chat-main {
  margin: 6px 12px 12px !important;
  border-radius: 12px !important;
  font-weight: 600 !important;
  font-size: 13.5px !important;
  padding: 10px 14px !important;
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent) !important;
  background: var(--accent-soft) !important;
  color: var(--accent-text) !important;
  transition: background .14s ease, border-color .14s ease, transform .12s ease !important;
}
.new-chat-main:hover {
  background: color-mix(in srgb, var(--accent) 16%, transparent) !important;
  border-color: color-mix(in srgb, var(--accent) 40%, transparent) !important;
}
.new-chat-main:active { transform: scale(.98); }

.nav-section-label {
  padding: 10px 16px 4px;
  font-size: 10.5px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--text-dim);
}
.nav-section-label.nav-more-label { margin-top: 6px; }

.sidebar-nav { padding: 0 8px 8px !important; gap: 2px !important; }
.nav-item {
  border-radius: 10px !important;
  padding: 9px 11px !important;
  font-size: 13.5px !important;
  font-weight: 500 !important;
  color: var(--text-secondary) !important;
  gap: 10px !important;
  transition: background .12s ease, color .12s ease !important;
}
.nav-item .nav-icon {
  width: 20px !important; opacity: .72 !important;
  color: var(--text-muted) !important;
}
.nav-item:hover {
  background: var(--bg-hover) !important;
  color: var(--text) !important;
}
.nav-item:hover .nav-icon { opacity: 1 !important; color: var(--text) !important; }
.nav-item.active {
  background: var(--bg-card) !important;
  color: var(--text) !important;
  font-weight: 600 !important;
  box-shadow: 0 1px 2px rgba(15,23,42,.04), inset 0 0 0 1px var(--border) !important;
}
.nav-item.active .nav-icon { opacity: 1 !important; color: var(--accent) !important; }
.nav-more-group .nav-item { padding-left: 12px !important; font-size: 13px !important; }

.sessions-title {
  font-size: 10.5px !important; font-weight: 700 !important;
  letter-spacing: .08em !important; color: var(--text-dim) !important;
}
.sessions-search input {
  border-radius: 10px !important;
  border: 1px solid transparent !important;
  background: var(--bg-input) !important;
  font-size: 13px !important;
  padding: 8px 11px !important;
}
.sessions-search input:focus {
  border-color: color-mix(in srgb, var(--accent) 35%, transparent) !important;
  background: var(--bg-card) !important;
  outline: none;
}
.conv-item {
  border-radius: 10px !important;
  font-size: 13px !important;
  min-height: 36px !important;
}
.conv-item.active {
  background: var(--accent-soft) !important;
  color: var(--accent-text) !important;
  font-weight: 600 !important;
}

/* ── Topbar ──────────────────────────────────────────────────────────────── */
#topbar {
  height: 52px !important;
  padding: 0 18px !important;
  background: var(--bg) !important;
  border-bottom: 1px solid var(--border) !important;
}
#tab-title {
  font-size: 14.5px !important;
  font-weight: 650 !important;
  letter-spacing: -.015em;
  color: var(--text) !important;
}
#session-name { font-size: 13px !important; color: var(--text-muted) !important; }
.model-picker-trigger {
  border-radius: 999px !important;
  border: 1px solid var(--border) !important;
  background: var(--bg-card) !important;
  font-size: 12.5px !important;
  font-weight: 550 !important;
  padding: 6px 12px !important;
  transition: border-color .12s ease, background .12s ease !important;
}
.model-picker-trigger:hover {
  border-color: var(--border-light) !important;
  background: var(--bg-hover) !important;
}

/* ── Main chat column ────────────────────────────────────────────────────── */
#messages { background: var(--bg) !important; }
.msg-row { max-width: 760px !important; }
.msg-row.user .msg-content {
  background: var(--accent-soft) !important;
  border: 1px solid color-mix(in srgb, var(--accent) 14%, transparent) !important;
  border-radius: 18px 18px 6px 18px !important;
  font-size: 15px !important;
  line-height: 1.65 !important;
}
.msg-row.assistant .msg-content {
  font-size: 15.5px !important;
  line-height: 1.72 !important;
  color: var(--text) !important;
}
#welcome h2, #welcome-greeting {
  font-size: clamp(28px, 3.5vw, 34px) !important;
  font-weight: 650 !important;
  letter-spacing: -.03em !important;
  color: var(--text) !important;
}
#welcome .welcome-hint, #welcome-hint {
  font-size: 14.5px !important;
  color: var(--text-muted) !important;
  line-height: 1.55 !important;
}
.welcome-chip {
  border-radius: 999px !important;
  border: 1px solid var(--border) !important;
  background: var(--bg-card) !important;
  padding: 9px 15px !important;
  font-size: 13px !important;
  font-weight: 500 !important;
  transition: border-color .14s ease, background .14s ease, transform .12s ease !important;
}
.welcome-chip:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border)) !important;
  background: var(--accent-soft) !important;
  color: var(--accent-text) !important;
  transform: translateY(-1px);
}

#input-wrapper {
  border-radius: 26px !important;
  border: 1px solid var(--border-light) !important;
  background: var(--bg-card) !important;
  box-shadow:
    0 1px 2px rgba(15,23,42,.04),
    0 12px 36px -20px rgba(15,23,42,.22) !important;
  transition: border-color .16s ease, box-shadow .2s ease !important;
}
#input-wrapper:focus-within {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border)) !important;
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent),
    0 14px 40px -18px rgba(15,23,42,.28) !important;
}
#message-input {
  font-size: 15.5px !important;
  line-height: 1.55 !important;
  font-family: inherit !important;
}
#send-btn {
  width: 36px !important; height: 36px !important;
  border-radius: 50% !important;
  background: var(--accent) !important;
  transition: transform .12s ease, background .12s ease !important;
}
#send-btn:hover:not(:disabled) {
  background: var(--accent-hover) !important;
  transform: scale(1.05);
}

/* ── Surface pages (Images, Connectors, Projects shell) ──────────────────── */
.surface-page {
  flex: 1; overflow-y: auto;
  padding: 28px 24px 48px;
  max-width: 960px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
  animation: surface-rise .28s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes surface-rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.surface-hero {
  text-align: center;
  max-width: 640px;
  margin: 6vh auto 32px;
}
.surface-hero-icon {
  width: 56px; height: 56px; margin: 0 auto 14px;
  border-radius: 16px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid; place-items: center;
}
.surface-title {
  margin: 0 0 8px;
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 650;
  letter-spacing: -.03em;
  color: var(--text);
}
.surface-sub {
  margin: 0 auto 20px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-muted);
}
.surface-head-row {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 22px;
}
.surface-section-title {
  font-size: 13px; font-weight: 700; letter-spacing: .04em;
  text-transform: uppercase; color: var(--text-dim);
  margin: 0 0 12px;
}
.surface-empty-hint {
  color: var(--text-muted); font-size: 13.5px; line-height: 1.5;
  padding: 20px; text-align: center;
  border: 1px dashed var(--border); border-radius: 14px;
}
.surface-primary-btn {
  border: none; border-radius: 12px;
  background: var(--accent); color: #fff;
  font-weight: 650; font-size: 13.5px;
  padding: 10px 18px; cursor: pointer;
  transition: background .12s ease, transform .12s ease;
}
.surface-primary-btn:hover { background: var(--accent-hover); }
.surface-primary-btn:active { transform: scale(.98); }
.surface-chip {
  border: 1px solid var(--border); background: var(--bg-card);
  border-radius: 999px; padding: 8px 14px;
  font-size: 13px; font-weight: 500; color: var(--text-secondary);
  cursor: pointer; transition: border-color .12s ease, background .12s ease, color .12s ease;
}
.surface-chip:hover {
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
  background: var(--accent-soft); color: var(--accent-text);
}

/* ══ Images studio — Kimi/Gemini polish (type, icons, motion) ════════════ */
.img-studio {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  width: 100%;
  background: var(--bg);
  overflow: hidden;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.011em;
}
.img-studio-bar {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 22px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2;
}
.img-studio-modes {
  display: flex;
  gap: 3px;
  background: var(--bg-input);
  border-radius: 12px;
  padding: 3px;
  border: 1px solid transparent;
}
.img-mode {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -.01em;
  padding: 7px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: background .16s ease, color .16s ease, box-shadow .16s ease, transform .12s ease;
}
.img-mode-ico { flex: none; opacity: .75; transition: opacity .16s ease, color .16s ease; }
.img-mode:hover { color: var(--text); background: color-mix(in srgb, var(--bg-card) 70%, transparent); }
.img-mode:hover .img-mode-ico { opacity: 1; }
.img-mode.active {
  background: var(--bg-card);
  color: var(--text);
  box-shadow: 0 1px 3px rgba(15,23,42,.07), inset 0 0 0 1px var(--border);
}
.img-mode.active .img-mode-ico { opacity: 1; color: var(--accent); }
.img-quota-pill {
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--bg-nav);
  border: 1px solid var(--border);
  transition: color .15s, border-color .15s, background .15s;
}
.img-quota-pill.warn {
  color: var(--red, #d1453b);
  border-color: color-mix(in srgb, var(--red) 28%, var(--border));
  background: var(--red-soft, rgba(209,69,59,.08));
}

.img-pane {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: img-pane-in .28s cubic-bezier(.16,1,.3,1) both;
}
.img-pane[hidden] { display: none !important; animation: none; }
@keyframes img-pane-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

/* Canvas */
.img-canvas {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 28px 24px 16px;
  scroll-behavior: smooth;
}
.img-empty {
  max-width: 520px;
  margin: max(6vh, 32px) auto 0;
  text-align: center;
  animation: img-empty-in .4s cubic-bezier(.16,1,.3,1) both;
}
@keyframes img-empty-in {
  from { opacity: 0; transform: translateY(12px) scale(.98); }
  to { opacity: 1; transform: none; }
}
.img-empty-mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 14%, transparent);
  box-shadow: 0 8px 24px -14px color-mix(in srgb, var(--accent) 45%, transparent);
}
.img-empty-title {
  margin: 0 0 8px;
  font-size: clamp(26px, 3.6vw, 34px);
  font-weight: 650;
  letter-spacing: -.035em;
  line-height: 1.15;
  color: var(--text);
}
.img-empty-sub {
  margin: 0 auto 24px;
  font-size: 14.5px;
  font-weight: 450;
  color: var(--text-muted);
  line-height: 1.55;
  letter-spacing: -.01em;
  max-width: 38ch;
}
.img-examples {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.img-ex {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 999px;
  padding: 9px 14px 9px 11px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 550;
  letter-spacing: -.01em;
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    border-color .16s ease,
    background .16s ease,
    color .16s ease,
    transform .16s cubic-bezier(.16,1,.3,1),
    box-shadow .16s ease;
}
.img-ex-ico {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: var(--bg-nav);
  color: var(--text-muted);
  flex: none;
  transition: background .16s, color .16s;
}
.img-ex:hover {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
  background: var(--accent-soft);
  color: var(--accent-text);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -12px color-mix(in srgb, var(--accent) 40%, transparent);
}
.img-ex:hover .img-ex-ico {
  background: color-mix(in srgb, var(--accent) 16%, #fff);
  color: var(--accent);
}
.img-ex:active { transform: translateY(0) scale(.98); }

/* Result stream */
.img-stream {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding-bottom: 8px;
}
.img-card {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-card);
  box-shadow: 0 12px 36px -22px rgba(15,23,42,.26);
  animation: img-rise .36s cubic-bezier(.16,1,.3,1) both;
}
@keyframes img-rise {
  from { opacity: 0; transform: translateY(14px) scale(.985); }
  to { opacity: 1; transform: none; }
}
.img-card-shot {
  display: block;
  width: 100%;
  border: none;
  padding: 0;
  background: #0c1018;
  cursor: zoom-in;
  transition: filter .2s ease;
}
.img-card-shot:hover { filter: brightness(1.03); }
.img-card-shot img {
  width: 100%;
  max-height: min(72vh, 700px);
  object-fit: contain;
  display: block;
  background: #0c1018;
}
.img-card-cap { padding: 13px 16px 15px; }
.img-card-prompt {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -.015em;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 4px;
}
.img-card-meta {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .01em;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.img-card-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.img-mini-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 9px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--text-secondary);
  cursor: pointer;
  text-decoration: none;
  transition: background .14s, color .14s, border-color .14s, transform .12s;
}
.img-mini-btn:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-light);
}
.img-mini-btn:active { transform: scale(.97); }

/* Skeleton */
.img-skeleton {
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: var(--bg-card);
  padding-bottom: 14px;
  animation: img-rise .3s cubic-bezier(.16,1,.3,1) both;
}
.img-skel-frame {
  width: 100%;
  background: linear-gradient(165deg, #eef3f9 0%, #f7f9fc 55%, #e9eef5 100%);
  position: relative;
  overflow: hidden;
}
:root[data-theme="dark"] .img-skel-frame {
  background: linear-gradient(165deg, #1a1d24 0%, #22262e 55%, #181b21 100%);
}
.img-skel-square { aspect-ratio: 1; max-height: 480px; }
.img-skel-landscape { aspect-ratio: 16/9; }
.img-skel-portrait { aspect-ratio: 9/16; max-width: 340px; margin: 0 auto; }
.img-skel-shine {
  position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 25%, rgba(255,255,255,.5) 50%, transparent 75%);
  animation: img-shine 1.35s cubic-bezier(.4,0,.2,1) infinite;
}
:root[data-theme="dark"] .img-skel-shine {
  background: linear-gradient(105deg, transparent 25%, rgba(255,255,255,.08) 50%, transparent 75%);
}
@keyframes img-shine {
  from { transform: translateX(-70%); }
  to { transform: translateX(70%); }
}
.img-skel-label {
  margin: 12px 16px 0;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: -.01em;
  color: var(--text-muted);
}
.img-skel-prompt {
  margin: 4px 16px 0;
  font-size: 12.5px;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Bottom dock — Kimi-style composer */
.img-dock {
  flex: none;
  padding: 0 18px 14px;
  background: linear-gradient(180deg, transparent 0%, var(--bg) 32%);
}
.img-dock .img-error {
  max-width: 720px;
  margin: 0 auto 8px;
  padding: 9px 13px;
  border-radius: 11px;
  background: var(--red-soft, rgba(209,69,59,.1));
  color: var(--red, #d1453b);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -.01em;
  animation: img-rise .22s ease both;
}
.img-dock-box {
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 24px;
  padding: 13px 15px 11px;
  box-shadow:
    0 1px 2px rgba(15,23,42,.04),
    0 14px 40px -18px rgba(15,23,42,.26);
  transition: border-color .18s ease, box-shadow .22s ease;
}
.img-dock-box:focus-within {
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent),
    0 16px 44px -16px rgba(15,23,42,.3);
}
.img-dock-input {
  width: 100%;
  border: none;
  resize: none;
  outline: none;
  font-family: inherit;
  font-size: 15.5px;
  font-weight: 450;
  line-height: 1.52;
  letter-spacing: -.015em;
  color: var(--text);
  background: transparent;
  min-height: 48px;
  max-height: 140px;
  box-sizing: border-box;
}
.img-dock-input::placeholder { color: var(--text-dim); font-weight: 450; }
.img-dock-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.img-seg {
  display: flex;
  gap: 2px;
  background: var(--bg-input);
  border-radius: 11px;
  padding: 3px;
  border: 1px solid transparent;
}
.img-seg-btn {
  border: none;
  background: transparent;
  width: 36px;
  height: 32px;
  border-radius: 9px;
  cursor: pointer;
  color: var(--text-muted);
  display: grid;
  place-items: center;
  transition: background .14s, color .14s, box-shadow .14s, transform .12s;
}
.img-seg-btn svg { display: block; }
.img-seg-btn:hover { color: var(--text); background: color-mix(in srgb, var(--bg-card) 80%, transparent); }
.img-seg-btn.active {
  background: var(--bg-card);
  color: var(--accent);
  box-shadow: 0 1px 3px rgba(15,23,42,.08), inset 0 0 0 1px color-mix(in srgb, var(--accent) 18%, var(--border));
}
.img-seg-btn:active { transform: scale(.94); }
.img-dock-select {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: -.01em;
  padding: 7px 11px;
  margin-left: auto;
  cursor: pointer;
  transition: border-color .14s, color .14s;
}
.img-dock-select:hover { border-color: var(--border-light); color: var(--text); }
.img-dock-send {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  flex: none;
  box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 70%, transparent);
  transition: transform .14s cubic-bezier(.16,1,.3,1), background .14s, box-shadow .14s;
}
.img-dock-send .img-send-ico { transition: transform .16s cubic-bezier(.16,1,.3,1); }
.img-dock-send:hover:not(:disabled) {
  background: var(--accent-hover);
  transform: scale(1.06);
  box-shadow: 0 8px 22px -8px color-mix(in srgb, var(--accent) 75%, transparent);
}
.img-dock-send:hover:not(:disabled) .img-send-ico { transform: translateY(-1px); }
.img-dock-send:active:not(:disabled) { transform: scale(.96); }
.img-dock-send:disabled,
.img-dock-send.is-busy {
  opacity: .5;
  cursor: wait;
  transform: none;
  box-shadow: none;
}
.img-dock-send.is-busy .img-send-ico {
  animation: img-send-pulse .9s ease-in-out infinite;
}
@keyframes img-send-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}
.img-dock-hint {
  max-width: 720px;
  margin: 8px auto 0;
  text-align: center;
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: -.005em;
  color: var(--text-dim);
  opacity: .85;
}

/* Library pane */
.img-lib-top {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 22px 10px;
}
.img-lib-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  min-width: 0;
}
.img-folder-chips { display: contents; }
.img-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 999px;
  padding: 6px 12px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background .14s, color .14s, border-color .14s, transform .12s, box-shadow .14s;
}
.img-chip:hover {
  background: var(--bg-hover);
  color: var(--text);
  transform: translateY(-1px);
}
.img-chip.active {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 32%, transparent);
  color: var(--accent-text);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 8%, transparent);
}
.img-chip-ghost { border-style: dashed; font-weight: 550; }
.img-chip-danger { color: var(--danger, #b91c1c); }
.img-chip-danger:hover { border-color: var(--danger, #b91c1c); }
.img-text-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -.01em;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
  transition: color .14s, background .14s;
}
.img-text-btn:hover { color: var(--text); background: var(--bg-hover); }
.img-masonry {
  flex: 1;
  overflow-y: auto;
  padding: 8px 22px 36px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  align-content: start;
}
.img-empty-hint {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 48px 16px;
  letter-spacing: -.01em;
}
.img-m-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  transition: border-color .16s, box-shadow .18s, transform .18s cubic-bezier(.16,1,.3,1);
  animation: img-rise .32s cubic-bezier(.16,1,.3,1) both;
}
.img-m-card:hover {
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
  box-shadow: 0 12px 28px -16px rgba(15,23,42,.24);
  transform: translateY(-2px);
}
.img-m-thumb {
  border: none;
  padding: 0;
  background: var(--bg-nav);
  cursor: zoom-in;
  aspect-ratio: 1;
  overflow: hidden;
}
.img-m-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s cubic-bezier(.16,1,.3,1);
}
.img-m-card:hover .img-m-thumb img { transform: scale(1.04); }
.img-m-body { padding: 10px 12px 12px; }
.img-m-prompt {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: -.012em;
  color: var(--text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.6em;
}
.img-m-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-dim);
  margin: 4px 0 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.img-m-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.img-move-menu {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  background: var(--bg);
  animation: img-rise .18s ease both;
}
.img-move-menu[hidden] { display: none !important; }
.img-move-opt {
  border: none;
  background: transparent;
  text-align: left;
  padding: 7px 9px;
  border-radius: 7px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 550;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background .12s, color .12s;
}
.img-move-opt:hover { background: var(--bg-hover); color: var(--text); }

/* Chat images */
.msg-content img,
.msg-row .msg-content p img {
  max-width: min(100%, 560px);
  max-height: 480px;
  width: auto;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  margin: 10px 0;
  display: block;
  cursor: zoom-in;
  background: var(--bg-nav);
  object-fit: contain;
  transition: box-shadow .18s ease, transform .18s ease;
}
.msg-content img:hover {
  box-shadow: 0 10px 28px -12px rgba(15,23,42,.32);
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .img-studio-bar { padding: 8px 12px; }
  .img-canvas { padding: 16px 12px 8px; }
  .img-dock { padding: 0 10px 12px; }
  .img-dock-box { border-radius: 20px; }
  .img-masonry { padding: 8px 12px 28px; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
  .img-empty { margin-top: 3vh; }
  .img-mode span { /* keep labels */ }
  .img-dock-hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .img-studio *,
  .img-pane,
  .img-empty,
  .img-card,
  .img-m-card,
  .img-skeleton,
  .img-skel-shine,
  .img-dock-send .img-send-ico {
    animation: none !important;
    transition: none !important;
  }
  .img-ex:hover,
  .img-m-card:hover,
  .img-m-card:hover .img-m-thumb img {
    transform: none !important;
  }
}

/* Connectors */
.conn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.conn-card {
  text-align: left;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-card);
  padding: 16px 16px 14px;
  transition: border-color .14s ease, box-shadow .14s ease, transform .12s ease;
}
.conn-card:hover {
  border-color: color-mix(in srgb, var(--accent) 30%, var(--border));
  box-shadow: 0 8px 24px -16px rgba(15,23,42,.25);
}
.conn-card-top {
  display: flex; align-items: center; gap: 12px; margin-bottom: 10px;
}
.conn-ico {
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--bg-nav); border: 1px solid var(--border);
  display: grid; place-items: center; font-size: 18px; flex: none;
}
.conn-name { font-size: 14.5px; font-weight: 650; color: var(--text); letter-spacing: -.01em; }
.conn-desc { font-size: 12.5px; color: var(--text-muted); line-height: 1.45; margin: 0 0 12px; }
.conn-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.conn-btn {
  border: 1px solid var(--border); background: var(--bg);
  border-radius: 9px; padding: 6px 11px;
  font-size: 12.5px; font-weight: 600; color: var(--text-secondary);
  cursor: pointer; transition: background .12s ease, color .12s ease, border-color .12s ease;
}
.conn-btn:hover { background: var(--bg-hover); color: var(--text); }
.conn-btn.primary {
  background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--accent-text);
}
.conn-badge {
  font-size: 10.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase;
  color: var(--text-dim); border: 1px solid var(--border); border-radius: 6px;
  padding: 2px 6px; margin-left: auto;
}
.conn-badge.on { color: var(--green); border-color: color-mix(in srgb, var(--green) 35%, transparent); background: var(--green-soft); }

/* Projects (spaces) copy alignment via shell */
#tab-spaces .sp-title { letter-spacing: -.02em; font-weight: 650; }
#tab-spaces .sp-card {
  border-radius: 16px !important;
  transition: border-color .14s ease, box-shadow .14s ease, transform .12s ease !important;
}
#tab-spaces .sp-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 28px -16px rgba(15,23,42,.22) !important;
}

/* Side panel modes match shell */
.side-panel-mode { font-family: inherit !important; }
.side-panel {
  box-shadow: -8px 0 32px -20px rgba(15,23,42,.18);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .surface-page, .side-panel, .welcome-chip, .img-gallery-item, .conn-card, .new-chat-main {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .surface-page { padding: 18px 14px 36px; }
  .surface-hero { margin-top: 3vh; }
  .nav-section-label { padding-left: 12px; }
}