.same-layer-panel { display: none; }
.same-layer-panel.active { display: block; }
#tab-same-layer [hidden] { display: none !important; }

#tab-same-layer.same-layer-panel {
  --sl-ed-ink: #f4ecdc;
  --sl-ed-muted: #b9a88a;
  --sl-ed-gold: #d4a054;
  --sl-ed-gold-2: #e7c27a;
  --sl-ed-paper: color-mix(in srgb, var(--panel, #16120e) 88%, #3a2a18);
  --sl-ed-paper-2: color-mix(in srgb, var(--panel, #16120e) 72%, #2a1c12);
  --sl-ed-line: rgba(212, 160, 84, 0.28);
  --sl-ed-danger: #c45c48;
  --sl-ed-ok: #7ea36b;
  --sl-ed-display: "Songti SC", "STSong", "Noto Serif SC", "Palatino Linotype", Palatino, serif;
  position: relative;
}
:root[data-theme="light"] #tab-same-layer.same-layer-panel {
  --sl-ed-ink: #2c2116;
  --sl-ed-muted: #6d5b43;
  --sl-ed-gold: #9a4d1c;
  --sl-ed-gold-2: #c07a3a;
  --sl-ed-paper: color-mix(in srgb, var(--panel, #fffaf0) 86%, #f3ead8);
  --sl-ed-paper-2: #f7ecda;
  --sl-ed-line: rgba(154, 77, 28, 0.24);
  --sl-ed-danger: #a33b2c;
  --sl-ed-ok: #4d7a3e;
}

.sl-ed-hero {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 14px;
  padding: 4px 0 16px;
  border-bottom: 1px solid var(--sl-ed-line);
}
.sl-ed-hero-copy h2 {
  margin: 6px 0 6px;
  font-family: var(--sl-ed-display);
  letter-spacing: 0.08em;
}
.sl-ed-hero-copy .hint { max-width: 52ch; }
.sl-ed-toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}
.sl-ed-switch {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 10px;
  min-width: 168px;
  padding: 10px 12px;
  border: 1px solid var(--sl-ed-line);
  border-radius: 16px;
  background: var(--sl-ed-paper);
  cursor: pointer;
}
.sl-ed-switch input { grid-row: 1 / span 2; align-self: center; accent-color: var(--sl-ed-gold); }
.sl-ed-switch span { font-size: 13px; font-weight: 650; color: var(--sl-ed-ink); }
.sl-ed-switch small { grid-column: 2; color: var(--sl-ed-muted); font-size: 11px; }
.sl-ed-switch:has(input:checked) {
  border-color: var(--sl-ed-gold);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--sl-ed-gold) 40%, transparent);
}

.sl-ed-warning {
  margin: 0 0 14px;
  padding: 12px 14px 12px 16px;
  border-left: 3px solid var(--sl-ed-gold);
  border-radius: 0 14px 14px 0;
  background: color-mix(in srgb, var(--sl-ed-gold) 12%, transparent);
  font-size: 13px;
  line-height: 1.65;
}

.sl-ed-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 280px);
  gap: 14px;
  align-items: end;
  margin-bottom: 14px;
}
.sl-ed-stages {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0;
}
.same-layer-stage {
  position: relative;
  border: 1px solid var(--sl-ed-line);
  border-right-width: 0;
  padding: 10px 10px 11px;
  background: var(--sl-ed-paper);
  color: inherit;
  text-align: left;
  cursor: pointer;
}
.same-layer-stage:first-child { border-radius: 14px 0 0 14px; }
.same-layer-stage:last-child { border-radius: 0 14px 14px 0; border-right-width: 1px; }
.same-layer-stage small {
  display: block;
  opacity: 0.55;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.same-layer-stage strong { display: block; margin-top: 4px; font-size: 13px; }
.same-layer-stage.done { color: var(--sl-ed-gold-2); }
.same-layer-stage.active {
  background: color-mix(in srgb, var(--sl-ed-gold) 18%, var(--sl-ed-paper));
  border-color: var(--sl-ed-gold);
  z-index: 1;
  box-shadow: 0 0 0 1px var(--sl-ed-gold);
}
.sl-ed-toolbar-side { display: grid; gap: 8px; justify-items: end; }
.sl-ed-stage-meta {
  margin: 0;
  font-size: 12px;
  color: var(--sl-ed-muted);
  letter-spacing: 0.04em;
}

.sl-ed-guide,
.sl-ed-decision {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, .75fr);
  gap: 18px;
  align-items: center;
  margin: 0 0 14px;
  padding: 16px 18px;
  border: 1px solid var(--sl-ed-line);
  border-radius: 18px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--sl-ed-gold) 10%, var(--sl-ed-paper)), var(--sl-ed-paper));
}
.sl-ed-decision[hidden], .sl-ed-agent[hidden], .sl-ed-vue[hidden] { display: none !important; }
.sl-ed-guide h3,
.sl-ed-decision h3 { margin: 4px 0 6px; font-family: var(--sl-ed-display); }
.sl-ed-guide p,
.sl-ed-decision p { margin: 0; color: var(--sl-ed-muted); font-size: 13px; line-height: 1.65; }
.sl-ed-guide ol { margin: 0; padding-left: 22px; color: var(--sl-ed-muted); }
.sl-ed-guide li { margin: 5px 0; font-size: 12.5px; line-height: 1.5; }
.sl-ed-decision > .btn { justify-self: end; }
.sl-ed-variable-choice { grid-template-columns: minmax(220px, .65fr) minmax(0, 1.35fr); }
.sl-ed-choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sl-ed-choice {
  display: grid;
  gap: 6px;
  min-height: 96px;
  padding: 14px;
  border: 1px solid var(--sl-ed-line);
  border-radius: 14px;
  background: color-mix(in srgb, #000 10%, transparent);
  color: var(--sl-ed-ink);
  text-align: left;
  cursor: pointer;
}
.sl-ed-choice:hover:not(:disabled), .sl-ed-choice.active {
  border-color: var(--sl-ed-gold);
  background: color-mix(in srgb, var(--sl-ed-gold) 16%, transparent);
}
.sl-ed-choice:disabled { opacity: .45; cursor: not-allowed; }
.sl-ed-choice span { color: var(--sl-ed-muted); font-size: 12px; line-height: 1.5; }
.sl-ed-variable-choice > .btn { grid-column: 1 / -1; justify-self: end; }
.sl-ed-module-picker { display: grid; gap: 4px; color: var(--sl-ed-muted); font-size: 11px; }
.sl-ed-module-picker select { min-width: 150px; }

.sl-ed-vue {
  margin: 0 0 14px;
  border: 1px dashed var(--sl-ed-line);
  border-radius: 16px;
  background: var(--sl-ed-paper-2);
  overflow: hidden;
}
.sl-ed-vue > summary {
  cursor: pointer;
  list-style: none;
  padding: 11px 16px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: var(--sl-ed-gold-2);
}
.sl-ed-vue > summary::-webkit-details-marker { display: none; }
.sl-ed-vue > summary::before {
  content: "▸ ";
  font-size: 11px;
  opacity: 0.7;
}
.sl-ed-vue[open] > summary::before { content: "▾ "; }
.sl-ed-vue-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px dashed var(--sl-ed-line);
}
.sl-ed-vue-grid > div { padding: 12px 16px 14px; }
.sl-ed-vue-grid > div:first-child { border-right: 1px dashed var(--sl-ed-line); }
.sl-ed-vue h4 {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sl-ed-muted);
}
.sl-ed-vue ul { margin: 0; padding-left: 18px; }
.sl-ed-vue li { margin: 0 0 6px; font-size: 12.5px; line-height: 1.55; }
.sl-ed-vue code {
  font-size: 11.5px;
  padding: 0 4px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--sl-ed-gold) 14%, transparent);
}

#tab-same-layer .status-line { margin: 0 0 12px; min-height: 1.4em; }

.sl-ed-work {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1.15fr);
  grid-template-areas:
    "agent preview"
    "vfs vfs"
    "approval approval";
  gap: 14px;
}
.sl-ed-agent { grid-area: agent; }
.sl-ed-preview { grid-area: preview; }
.sl-ed-vfs { grid-area: vfs; }
.sl-ed-approval { grid-area: approval; }
.sl-ed-work:has(#slCardAgentPanel[hidden]) {
  grid-template-areas:
    "preview preview"
    "vfs vfs"
    "approval approval";
}

.sl-ed-card {
  border: 1px solid var(--sl-ed-line);
  border-radius: 18px;
  background: var(--sl-ed-paper);
  padding: 0;
  overflow: hidden;
  min-width: 0;
}
.sl-ed-card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--sl-ed-line);
}
.sl-ed-card-head h3 {
  margin: 0 0 4px;
  font-family: var(--sl-ed-display);
  font-size: 16px;
  letter-spacing: 0.08em;
}
.sl-ed-card-head .hint { margin: 0; }
.sl-ed-card .btn-row { padding: 0 14px 14px; }

.sl-ed-agent-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(140px, 0.8fr);
  min-height: 240px;
  border-bottom: 1px solid var(--sl-ed-line);
}
.sl-ed-chat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 240px;
  max-height: 320px;
  overflow: auto;
  padding: 10px 12px;
  background: color-mix(in srgb, #000 18%, transparent);
}
.sl-ed-chat .bubble { margin: 0 0 8px; max-width: 92%; }
.sl-ed-observer {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-left: 1px solid var(--sl-ed-line);
  background: color-mix(in srgb, var(--sl-ed-gold) 6%, transparent);
}
.sl-ed-observer-head {
  padding: 8px 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sl-ed-muted);
  border-bottom: 1px solid var(--sl-ed-line);
}
#slCardObserver {
  flex: 1;
  max-height: 280px;
  overflow: auto;
  padding: 8px;
  font-size: 12px;
}
#slCardInput {
  width: calc(100% - 28px);
  margin: 12px 14px 10px;
  resize: vertical;
  min-height: 72px;
}

.sl-ed-preview-frame {
  position: relative;
  margin: 12px 14px 14px;
  min-height: 320px;
  border-radius: 14px;
  overflow: hidden;
  background: #100e0c;
  border: 1px solid color-mix(in srgb, var(--sl-ed-gold) 24%, transparent);
}
.same-layer-preview {
  display: block;
  width: 100%;
  min-height: 320px;
  height: 360px;
  border: 0;
  background: #100e0c;
}
.sl-ed-preview-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  color: var(--sl-ed-muted);
  font-size: 13px;
  letter-spacing: 0.06em;
  pointer-events: none;
}
.sl-ed-preview-frame.is-live .sl-ed-preview-empty { display: none; }

.sl-vfs-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-end;
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--sl-ed-line);
}
.sl-vfs-head h3 { margin: 0 0 2px; font-family: var(--sl-ed-display); letter-spacing: 0.08em; }
.sl-vfs-head .hint { margin: 0; }
.sl-vfs-head input {
  width: min(240px, 42%);
  border-radius: 999px;
  border: 1px solid var(--sl-ed-line);
  background: transparent;
  color: inherit;
  padding: 7px 12px;
  font: 12px/1.3 inherit;
}
.sl-vfs-layout {
  display: grid;
  grid-template-columns: minmax(200px, 260px) minmax(0, 1fr);
  min-height: 380px;
}
.sl-vfs-tree {
  margin: 0;
  padding: 8px;
  overflow: auto;
  max-height: 520px;
  border-right: 1px solid var(--sl-ed-line);
  font: 12px/1.45 ui-monospace, Consolas, monospace;
}
.sl-vfs-folder, .sl-vfs-file {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
}
.sl-vfs-folder:hover, .sl-vfs-file:hover {
  background: color-mix(in srgb, var(--sl-ed-gold) 14%, transparent);
}
.sl-vfs-file.active {
  background: color-mix(in srgb, var(--sl-ed-gold) 24%, transparent);
}
.sl-vfs-folder { font-weight: 650; letter-spacing: .02em; }
.sl-vfs-children { padding-left: 12px; }
.sl-vfs-kind {
  margin-left: auto;
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .62;
  border: 1px solid var(--sl-ed-line);
  border-radius: 999px;
  padding: 0 6px;
}
.sl-vfs-file.core { opacity: .78; }
.sl-vfs-file.core .sl-vfs-kind { color: var(--sl-ed-gold-2); }
.sl-vfs-file.kind-vue .sl-vfs-kind { color: #8fbf88; }
.sl-vfs-pane { display: flex; flex-direction: column; min-width: 0; }
.sl-vfs-filebar {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border-bottom: 1px solid var(--sl-ed-line);
}
.sl-vfs-filebar strong { display: block; font-size: 13px; word-break: break-all; }
.sl-vfs-meta { display: block; font-size: 11px; opacity: .62; margin-top: 2px; }
.sl-vfs-filebar.is-dirty strong::after {
  content: " · 未保存";
  color: var(--sl-ed-gold);
  font-weight: 500;
}
.sl-ed-vue-filehint {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--sl-ed-gold-2);
}
.sl-ed-vue-filehint code {
  font-size: 11px;
  padding: 0 4px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--sl-ed-gold) 16%, transparent);
}
.sl-vfs-editor, .sl-vfs-preview {
  flex: 1;
  min-height: 280px;
  margin: 0;
  border: 0;
  resize: vertical;
  padding: 14px 16px;
  background: color-mix(in srgb, #000 22%, transparent);
  color: inherit;
  font: 12.5px/1.6 ui-monospace, Consolas, monospace;
  white-space: pre-wrap;
  overflow: auto;
}

.sl-ed-approval { padding-bottom: 4px; }
.sl-ed-approval.is-pending {
  border-color: var(--sl-ed-gold);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--sl-ed-gold) 50%, transparent);
}
.sl-vfs-approval {
  max-height: 260px;
  overflow: auto;
  display: grid;
  gap: 8px;
  padding: 12px 14px;
}
.sl-vfs-diff {
  border: 1px solid var(--sl-ed-line);
  border-radius: 12px;
  padding: 10px 12px;
  font: 12px/1.45 ui-monospace, Consolas, monospace;
  background: color-mix(in srgb, #000 12%, transparent);
}
.sl-vfs-diff b { display: block; margin-bottom: 6px; }
.sl-vfs-diff .before { color: var(--sl-ed-danger); white-space: pre-wrap; }
.sl-vfs-diff .after { color: var(--sl-ed-ok); white-space: pre-wrap; }

.same-layer-taken-banner {
  display: none;
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #3b2a12;
  color: #f3d7a1;
  font-size: 13px;
}
body.same-layer-opening-taken .same-layer-taken-banner { display: block; }
body.same-layer-opening-taken .wf-dot[data-wfstep="6"] {
  opacity: 0.55;
  text-decoration: line-through;
}

@media (max-width: 1100px) {
  .sl-ed-work {
    grid-template-columns: 1fr;
    grid-template-areas:
      "agent"
      "preview"
      "vfs"
      "approval";
  }
  .sl-ed-toolbar { grid-template-columns: 1fr; }
  .sl-ed-toolbar-side { justify-items: stretch; }
  .sl-ed-vue-grid { grid-template-columns: 1fr; }
  .sl-ed-guide, .sl-ed-decision, .sl-ed-variable-choice { grid-template-columns: 1fr; }
  .sl-ed-decision > .btn, .sl-ed-variable-choice > .btn { justify-self: stretch; }
  .sl-ed-vue-grid > div:first-child { border-right: 0; border-bottom: 1px dashed var(--sl-ed-line); }
}
@media (max-width: 960px) {
  .sl-ed-hero, .sl-ed-toggles { flex-direction: column; align-items: stretch; }
  .sl-ed-stages { grid-template-columns: 1fr 1fr; }
  .same-layer-stage:first-child,
  .same-layer-stage:last-child,
  .same-layer-stage { border-radius: 12px; border-right-width: 1px; }
  .sl-ed-agent-workspace,
  .sl-vfs-layout { grid-template-columns: 1fr; }
  .sl-vfs-tree {
    max-height: 180px;
    border-right: 0;
    border-bottom: 1px solid var(--sl-ed-line);
  }
  .sl-vfs-head { flex-direction: column; align-items: stretch; }
  .sl-vfs-head input { width: 100%; }
  .sl-ed-chat { max-height: 220px; }
  .sl-ed-choice-grid { grid-template-columns: 1fr; }
}

/* File and approval controls remain usable on narrow screens. */
.sl-ed-work > *, .sl-vfs-filebar > *, .sl-ed-card-head > * { min-width: 0; }
.sl-vfs-editor[hidden], .sl-vfs-preview[hidden] { display: none !important; }
.sl-vfs-diff { overflow-wrap: anywhere; }
.sl-vfs-file { overflow-wrap: anywhere; }
@media (max-width: 720px) {
  .sl-vfs-filebar, .sl-ed-card-head { flex-direction: column; align-items: stretch; }
  #tab-same-layer .btn-row { display: flex; flex-wrap: wrap; gap: 8px; }
  #tab-same-layer .btn-row .btn { flex: 1 1 auto; min-height: 44px; white-space: normal; }
  #tab-same-layer :is(input:not([type=checkbox]), select, textarea) { min-width: 0; max-width: 100%; font-size: 16px; }
  .sl-vfs-editor, .sl-vfs-preview { min-height: 240px; max-height: 60dvh; padding: 12px; }
  .sl-ed-work { grid-template-areas: "agent" "approval" "vfs" "preview"; }
  .sl-ed-work:has(#slCardAgentPanel[hidden]) { grid-template-areas: "approval" "vfs" "preview"; }
  #tab-same-layer { padding-bottom: calc(84px + env(safe-area-inset-bottom, 0px)); }
  .sl-ed-stages { gap: 8px; }
  .sl-vfs-approval { max-height: 45dvh; overscroll-behavior: contain; }
  .sl-ed-switch { min-width: 0; }
}
.sl-file-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px;border-block:1px solid var(--border, #514637)}
.sl-file-tools label{font-size:12px;white-space:nowrap}
.sl-file-tools input{flex:1;min-width:160px;width:100%;padding:9px;border:1px solid var(--border, #514637);border-radius:8px;background:var(--bg, #181613);color:inherit}
.sl-file-shortcuts{display:flex;flex-wrap:wrap;gap:6px;padding:8px 12px}
@media(max-width:680px){.sl-file-tools input{flex-basis:calc(100% - 70px)}.sl-file-tools .btn{flex:1}.sl-file-shortcuts .btn{font-size:12px}}