/* Git 沙盒的样式。颜色全部来自站点同步进 iframe 的变量（--paper、--pencil、--marker …），
   下面的值只是独立打开时的回退。深色模式由站点写到 <html data-theme="dark">。 */
:root {
  --paper: #f6f7f4;
  --paper-2: #ffffff;
  --erased: #e0e3e0;
  --pencil: #1f2433;
  --pencil-60: rgba(31, 36, 51, 0.6);
  --pencil-45: rgba(31, 36, 51, 0.45);
  --pencil-25: rgba(31, 36, 51, 0.25);
  --pencil-12: rgba(31, 36, 51, 0.12);
  --marker: #c4562f;
  --pen: #3b4f9e;
  --postit: #e6ebfa;
  --postit-2: #dcefe4;
  --postit-3: #f8e5dc;
  --tape: rgba(255, 236, 150, 0.7);
  --font-body: 'LXGW WenKai Screen', 'KaiTi', 'STKaiti', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', 'LXGW WenKai Screen', monospace;
  --radius-wobble-sm: 180px 15px 180px 15px / 15px 180px 15px 180px;
  --radius-pill: 999px 18px 999px 18px / 18px 999px 18px 999px;
  --shadow-soft: 3px 3px 0 0 rgba(31, 36, 51, 0.1);
  --shadow-hand-sm: 2px 2px 0 0 var(--pencil);
  /* 终端配色：对应 Git 在真终端里的绿 / 黄 / 青，只是换成能印在纸上的深浅 */
  --ok: #2f7d4f;
  --hash: #9a5b0c;
  --head: #0e7490;
  --warn: #9a5b0c;
  color-scheme: light;
}
html[data-theme='dark'] {
  --ok: #7fbf9a;
  --hash: #e0b35a;
  --head: #6cc4d6;
  --warn: #e0b35a;
  color-scheme: dark;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  background: transparent;
}
body {
  font-family: var(--font-body);
  color: var(--pencil);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button {
  font: inherit;
  color: inherit;
}
code,
kbd {
  font-family: var(--font-mono);
}

.lab {
  position: relative;
  padding: 0.85rem 0.9rem 1rem;
  background-color: var(--paper);
  background-image: radial-gradient(var(--erased) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* ---------- 标题栏 ---------- */
.lab-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.7rem;
  margin-bottom: 0.75rem;
}
.lab-tag {
  padding: 0 0.6rem;
  border: 2px solid var(--pencil);
  border-radius: var(--radius-wobble-sm);
  background: var(--postit);
  font-size: 0.82rem;
  transform: rotate(-2deg);
}
.lab-title {
  flex: 1;
  min-width: 12rem;
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  font-synthesis: weight;
}
.lab-btn {
  padding: 0.05rem 0.75rem;
  font-size: 0.85rem;
  line-height: 1.6;
  background: var(--paper-2);
  border: 2px solid var(--pencil);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-hand-sm);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.1s ease;
}
.lab-btn:hover {
  background: var(--marker);
  color: #fff;
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 0 var(--pencil);
}
.lab-btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}
.lab-btn:disabled {
  opacity: 0.45;
  cursor: default;
  background: var(--paper-2);
  color: var(--pencil);
  transform: none;
  box-shadow: var(--shadow-hand-sm);
}
.lab-btn.is-quiet {
  border-width: 1.5px;
  box-shadow: none;
}
:focus-visible {
  outline: 2px dashed var(--marker);
  outline-offset: 2px;
}

/* ---------- 舞台：三栏、提交图、远程 ---------- */
.stage {
  display: grid;
  gap: 0.9rem;
}
/* 网格项默认 min-width:auto，会被提交链之类的内容撑宽；允许收缩，由内部元素自己滚动。 */
.stage > * {
  min-width: 0;
}
.panel {
  position: relative;
  padding: 0.7rem 0.75rem 0.75rem;
  background: var(--paper-2);
  border: 2px solid var(--pencil);
  border-radius: 12px 18px 14px 16px / 16px 14px 18px 12px;
  box-shadow: var(--shadow-soft);
}
.panel-title {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--pencil-60);
}
.panel-title b {
  color: var(--pencil);
}
.empty {
  margin: 0.2rem 0;
  font-size: 0.85rem;
  color: var(--pencil-45);
}

/* 三栏：同一个文件在三个区域的版本排在同一行 */
.areas {
  --gap: 1.1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: var(--gap);
  row-gap: 0.5rem;
}
.area-head {
  text-align: center;
  line-height: 1.3;
}
.area-head b {
  display: block;
  font-size: 0.95rem;
}
.area-head small {
  display: block;
  font-size: 0.72rem;
  color: var(--pencil-60);
}
.flow {
  position: relative;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: var(--gap);
  row-gap: 0.1rem;
  margin: 0.1rem 0 0.2rem;
}
.arrow {
  position: relative;
  grid-row: 1;
  height: 1.35rem;
  margin: 0 calc((100% - var(--gap)) / 4);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-align: center;
}
.arrow::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  border-top: 2px solid var(--pencil-45);
}
.arrow::after {
  content: '';
  position: absolute;
  right: -1px;
  top: calc(50% - 4px);
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--pencil-45);
  border-right: 2px solid var(--pencil-45);
  transform: rotate(45deg);
}
.arrow span {
  position: relative;
  z-index: 1;
  padding: 0 0.35rem;
  line-height: 1.35rem;
  background: var(--paper-2);
  color: var(--pencil-60);
}
.arrow.back {
  grid-row: 2;
}
.arrow.back::before {
  border-top-style: dashed;
  border-color: var(--marker);
}
.arrow.back::after {
  right: auto;
  left: -1px;
  border-color: var(--marker);
  transform: rotate(-135deg);
}
.arrow.back span {
  color: var(--marker);
}
.arrow.a1 {
  grid-column: 1 / span 2;
}
.arrow.a2 {
  grid-column: 2 / span 2;
}

.cell {
  position: relative;
  min-width: 0;
  padding: 0.3rem 0.45rem 0.35rem;
  background: var(--paper);
  border: 1.5px solid var(--pencil-45);
  border-radius: 6px 9px 7px 8px / 8px 7px 9px 6px;
  transition: border-color 0.2s ease;
}
.cell.is-empty {
  display: grid;
  place-items: center;
  min-height: 2rem;
  background: transparent;
  border-style: dashed;
  border-color: var(--pencil-12);
  color: var(--pencil-25);
  font-size: 0.8rem;
}
.cell.is-editable {
  cursor: pointer;
}
.cell.is-editable:hover {
  border-color: var(--pen);
}
.cell.is-untracked,
.cell.is-ignored {
  border-style: dashed;
}
.cell.is-ignored {
  opacity: 0.55;
}
.cell.is-deleted {
  border-style: dashed;
  background: transparent;
}
.cell.is-deleted .cell-name span:first-child {
  text-decoration: line-through;
}
.cell.is-changed {
  border-color: var(--marker);
}
.cell.is-staged {
  border-color: var(--ok);
}
.cell.is-conflict {
  border: 2px solid var(--marker);
  background: color-mix(in srgb, var(--postit-3) 55%, var(--paper));
}
.cell.is-fresh {
  animation: fresh 0.9s ease-out;
}
@keyframes fresh {
  0% {
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--marker) 35%, transparent);
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}
.cell-name {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  overflow: hidden;
  white-space: nowrap;
}
.cell-name span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
}
.badge {
  flex: none;
  margin-left: auto;
  padding: 0 0.3rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 400;
  line-height: 1.45;
  border-radius: 3px;
  color: var(--paper-2);
  background: var(--pencil-60);
}
.badge.warn {
  background: var(--marker);
}
.badge.ok {
  background: var(--ok);
}
.badge.dim {
  background: var(--pencil-25);
  color: var(--pencil);
}
.cell-body {
  margin: 0.2rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.45;
}
.cell-body div {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  min-height: 1.45em;
}
.cell-body .is-add {
  background: color-mix(in srgb, var(--marker) 16%, transparent);
  box-shadow: inset 2px 0 0 var(--marker);
  padding-left: 3px;
}
.cell-body .is-staged {
  background: color-mix(in srgb, var(--ok) 16%, transparent);
  box-shadow: inset 2px 0 0 var(--ok);
  padding-left: 3px;
}
.cell-body .is-gone {
  color: var(--pencil-45);
  text-decoration: line-through;
}
.cell-body .is-marker {
  color: var(--marker);
  font-weight: 700;
}
.cell-body .more,
.cell-body .blank {
  color: var(--pencil-45);
}

/* 提交历史（三栏下面的一条链） */
.history {
  margin-top: 0.7rem;
  padding-top: 0.55rem;
  border-top: 2px dashed var(--pencil-12);
}
.history-title {
  font-size: 0.78rem;
  color: var(--pencil-60);
}
.chain {
  display: flex;
  align-items: flex-end;
  gap: 0.35rem;
  margin: 0.35rem 0 0;
  padding: 1.3rem 0.1rem 0.25rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}
.chain li {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex: none;
}
.chain li + li::before {
  content: '←';
  color: var(--pencil-45);
  font-size: 0.85rem;
}
.snap {
  position: relative;
  max-width: 11rem;
  padding: 0.15rem 0.45rem;
  font-size: 0.78rem;
  line-height: 1.4;
  white-space: nowrap;
  overflow: visible;
  background: var(--paper);
  border: 1.5px solid var(--pencil);
  border-radius: 4px 7px 5px 6px / 6px 5px 7px 4px;
}
.snap code {
  color: var(--hash);
  font-size: 0.72rem;
  margin-right: 0.3rem;
}
.snap .msg {
  display: inline-block;
  max-width: 7.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
}
.snap.is-head {
  border-width: 2px;
  box-shadow: var(--shadow-hand-sm);
}
.snap.is-ghost {
  opacity: 0.5;
  border-style: dashed;
}
.snap.is-ghost .msg {
  text-decoration: line-through;
}
.snap .pin {
  position: absolute;
  left: 50%;
  bottom: 100%;
  margin-bottom: 0.2rem;
  transform: translateX(-50%);
  white-space: nowrap;
}
.ghosts {
  margin: 0.3rem 0 0;
  font-size: 0.75rem;
  color: var(--pencil-45);
}

/* 引用标签：HEAD、分支、远程分支 */
.ref {
  display: inline-block;
  padding: 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.5;
  border: 1.5px solid var(--pencil);
  border-radius: 4px;
  background: var(--postit);
  color: var(--pencil);
}
.ref.head {
  background: var(--marker);
  border-color: var(--marker);
  color: #fff;
}
.ref.is-current {
  box-shadow: 1px 1px 0 0 var(--pencil);
}
.ref.remote {
  background: transparent;
  border-style: dashed;
  color: var(--pencil-60);
  border-color: var(--pencil-45);
  font-weight: 400;
}
.ref-arrow {
  margin: 0 0.1rem;
  font-size: 0.7rem;
  color: var(--marker);
}

/* 提交图：左边是连线，右边一行一个提交 */
.graph {
  position: relative;
  /* 一行提交里的引用标签不换行；面板太窄时让图横向滚动，而不是把 iframe 撑宽。 */
  overflow-x: auto;
}
.graph svg {
  position: absolute;
  left: 0;
  top: 0;
  overflow: visible;
}
.graph .lane {
  fill: none;
  stroke-width: 2.2;
  stroke-linecap: round;
}
.lane-0 {
  stroke: var(--pencil);
}
.lane-1 {
  stroke: var(--pen);
}
.lane-2 {
  stroke: var(--marker);
}
.lane-3 {
  stroke: var(--ok);
}
.graph .lane.is-ghost {
  stroke: var(--pencil-25);
  stroke-dasharray: 3 4;
}
.graph .dot {
  fill: var(--paper-2);
  stroke-width: 2.4;
}
.graph .dot.is-head {
  fill: var(--marker);
  stroke: var(--marker);
}
.graph .dot.is-ghost {
  stroke: var(--pencil-25);
  stroke-dasharray: 2 2;
}
.g-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  height: 30px;
  min-width: 0;
  font-size: 0.8rem;
  white-space: nowrap;
}
.g-row code {
  flex: none;
  color: var(--hash);
  font-size: 0.72rem;
}
.g-row .msg {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}
.g-row.is-ghost {
  opacity: 0.5;
}
.g-row.is-ghost .msg {
  text-decoration: line-through;
}
.g-row .tag-note {
  font-size: 0.7rem;
  color: var(--pencil-45);
}
.g-state {
  margin: 0.45rem 0 0;
  font-size: 0.78rem;
  color: var(--pencil-60);
}
.g-state b {
  color: var(--marker);
}

.remote-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}
.remote-pair > * {
  min-width: 0;
}
.remote-pair .panel-title .where {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* 文件条（紧凑的工作区） */
.files {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.05rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--paper);
  border: 1.5px solid var(--pencil-45);
  border-radius: 5px;
  cursor: pointer;
}
.file-chip:hover {
  border-color: var(--pen);
}
.file-chip .badge {
  margin: 0;
}
.file-chip.is-dir {
  color: var(--pen);
  font-weight: 700;
  cursor: default;
}

/* ---------- 任务条 ---------- */
.task {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 0.2rem 0.7rem;
  margin-top: 0.85rem;
  padding: 0.5rem 0.75rem;
  background: var(--postit);
  border: 2px solid var(--pencil);
  border-radius: var(--radius-wobble-sm);
}
.task-count {
  padding-top: 0.1rem;
  font-size: 0.78rem;
  color: var(--pencil-60);
  white-space: nowrap;
}
.task-count b {
  color: var(--pencil);
}
.task-text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.55;
}
.task-text code,
.chips code {
  padding: 0 0.3em;
  font-size: 0.82em;
  background: var(--paper-2);
  border: 1.5px solid var(--pencil-45);
  border-radius: 4px;
  cursor: pointer;
  /* 宽屏上命令保持一行；窄屏放不下时允许断开，避免把任务条撑出 iframe。 */
  white-space: normal;
  overflow-wrap: anywhere;
}
.task-text code:hover,
.chips code:hover {
  border-color: var(--marker);
  color: var(--marker);
}
.task-dots {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.25rem;
}
.task-dots i {
  width: 0.55rem;
  height: 0.55rem;
  border: 1.5px solid var(--pencil-45);
  border-radius: 50% 45% 55% 50%;
}
.task-dots i.done {
  background: var(--marker);
  border-color: var(--marker);
}
.task-dots i.now {
  border-color: var(--pencil);
  background: var(--paper-2);
}
.task.is-done {
  background: var(--postit-2);
}
.stamp {
  display: inline-block;
  margin-right: 0.4rem;
  padding: 0 0.45rem;
  border: 2px solid var(--marker);
  border-radius: 4px 6px 5px 7px / 6px 4px 7px 5px;
  color: var(--marker);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  transform: rotate(-4deg);
  animation: stamp 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.3);
}
@keyframes stamp {
  from {
    transform: scale(1.6) rotate(-12deg);
    opacity: 0;
  }
}
.task-list {
  grid-column: 1 / -1;
  font-size: 0.82rem;
}
.task-list summary {
  cursor: pointer;
  color: var(--pencil-60);
}
.task-list ol {
  margin: 0.3rem 0 0.1rem;
  padding-left: 1.4rem;
}
.task-list li.done {
  color: var(--pencil-45);
  text-decoration: line-through;
}
.task-list li.now {
  font-weight: 700;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

/* ---------- 编辑器 ---------- */
.editor {
  margin-top: 0.85rem;
  padding: 0.6rem 0.75rem 0.7rem;
  background: var(--paper-2);
  border: 2px solid var(--pen);
  border-radius: 10px 14px 12px 12px / 12px 12px 14px 10px;
}
.editor[hidden] {
  display: none;
}
.editor-head {
  margin: 0 0 0.4rem;
  font-size: 0.85rem;
}
.editor-head code {
  font-weight: 700;
}
.editor-head small {
  color: var(--pencil-60);
}
.editor textarea {
  display: block;
  width: 100%;
  min-height: 7.5rem;
  padding: 0.45rem 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--pencil);
  background: var(--paper);
  border: 1.5px solid var(--pencil-45);
  border-radius: 6px;
  resize: vertical;
}
.editor-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.5rem;
}
.editor-tools .spacer {
  flex: 1;
}

/* ---------- 终端 ---------- */
.term {
  margin-top: 0.85rem;
  background: var(--paper-2);
  border: 2px solid var(--pencil);
  border-radius: 10px 16px 12px 14px / 14px 12px 16px 10px;
  box-shadow: var(--shadow-soft);
}
.term-out {
  max-height: 17.5rem;
  min-height: 5.5rem;
  overflow-y: auto;
  padding: 0.55rem 0.8rem 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  tab-size: 8;
  scrollbar-width: thin;
  scrollbar-color: var(--pencil-25) transparent;
}
.t-line {
  min-height: 1.5em;
}
.t-line.t-cmd {
  margin-top: 0.3rem;
}
.t-line.t-cmd:first-child {
  margin-top: 0;
}
.t-prompt {
  color: var(--pen);
}
.t-prompt .br {
  color: var(--ok);
}
.t-prompt .st {
  color: var(--marker);
}
.t-add,
.t-branch {
  color: var(--ok);
}
.t-branch,
.t-head,
.t-remote {
  font-weight: 700;
}
.t-del,
.t-err,
.t-remote {
  color: var(--marker);
}
.t-hash {
  color: var(--hash);
}
.t-head {
  color: var(--head);
}
.t-hunk,
.t-dir {
  color: var(--pen);
}
.t-meta {
  font-weight: 700;
}
.t-hint,
.t-graph {
  color: var(--pencil-60);
}
.t-warn {
  color: var(--warn);
}
.t-note {
  color: var(--pen);
  font-family: var(--font-body);
  font-size: 1.05em;
}
.t-intro {
  color: var(--pencil-60);
  font-family: var(--font-body);
  font-size: 1.05em;
}
.term-line {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.5rem 0.4rem 0.8rem;
  border-top: 1.5px dashed var(--pencil-25);
}
.term-line label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  white-space: nowrap;
}
.term-line input {
  flex: 1;
  min-width: 0;
  padding: 0.2rem 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--pencil);
  background: transparent;
  border: 0;
  outline: 0;
  caret-color: var(--marker);
}
.term-line input::placeholder {
  color: var(--pencil-25);
}
.term-line .lab-btn {
  flex: none;
  padding: 0 0.6rem;
}
.term:focus-within {
  border-color: var(--pen);
}
.chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--pencil-60);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .lab {
    padding: 0.7rem 0.6rem 0.8rem;
  }
  .areas {
    --gap: 0.5rem;
  }
  .area-head small,
  .arrow span {
    display: none;
  }
  .cell-body {
    font-size: 0.66rem;
  }
  .remote-pair {
    grid-template-columns: 1fr;
  }
  .term-line input {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}