/* C 语言实验室 · 三栏工作台（复用 /assets/portal.css 的主题变量） */
.clab-wrap {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 258px minmax(0, 1fr) 330px;
  gap: 14px; max-width: 1600px; margin: 18px auto; padding: 0 16px 24px;
  align-items: start;
}
@media (max-width: 1180px) {
  .clab-wrap { grid-template-columns: 230px minmax(0, 1fr); }
  .clab-right { grid-column: 1 / -1; }
}
@media (max-width: 780px) {
  .clab-wrap { grid-template-columns: 1fr; }
  .clab-right { grid-column: auto; }
}

.clab-col {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 16px; padding: 14px; min-width: 0;
  box-shadow: var(--shadow, none);
}
.clab-col-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.clab-col-head h2 { font-size: 15px; font-weight: 700; margin: 0; flex: 1; min-width: 120px; }
.clab-head-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.clab-sub { font-size: 11.5px; color: var(--ink-soft); }
.clab-spacer { flex: 1; }

.clab-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 12px; }
.clab-tab {
  border: 0; background: transparent; color: var(--ink-soft);
  font-size: 12.5px; padding: 7px 12px; cursor: pointer; border-radius: 8px 8px 0 0;
}
.clab-tab.active { color: var(--sky-600); font-weight: 700; background: color-mix(in srgb, var(--sky-300) 20%, transparent); }
.clab-pane { display: none; }
.clab-pane.active { display: block; }

.clab-inline { display: flex; gap: 6px; align-items: center; margin-bottom: 10px; }
.clab-inline input, .clab-field input, .clab-field textarea, .clab-inline select, .clab-field select,
.clab-editor-bar select {
  width: 100%; min-width: 0; font: inherit; font-size: 12.5px;
  color: var(--ink); background: var(--card); border: 1px solid var(--line);
  border-radius: 9px; padding: 7px 9px; outline: none;
}
.clab-inline input:focus, .clab-field textarea:focus, #code-editor:focus { border-color: var(--sky-400, var(--sky-300)); }
.clab-inline .clab-btn { flex: none; }

.clab-btn {
  border: 1px solid var(--line); background: var(--card); color: var(--ink);
  font: inherit; font-size: 12.5px; font-weight: 600; border-radius: 9px;
  padding: 7px 12px; cursor: pointer; transition: transform .15s, border-color .15s;
}
.clab-btn:hover { border-color: var(--sky-400, var(--sky-300)); transform: translateY(-1px); }
.clab-btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.clab-btn.tiny { font-size: 11.5px; padding: 5px 9px; }
.clab-btn.primary { color: #fff; background: var(--sky-600); border-color: var(--sky-600); }
.clab-btn.wide { width: 100%; margin-top: 4px; }
.clab-link { border: 0; background: none; color: var(--sky-600); font-size: 11.5px; cursor: pointer; padding: 2px 4px; }

.clab-list { max-height: 420px; overflow: auto; display: flex; flex-direction: column; gap: 6px; }
.clab-item {
  display: block; width: 100%; text-align: left; cursor: pointer;
  border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px;
  background: color-mix(in srgb, var(--sky-300) 8%, transparent); color: var(--ink);
  font: inherit; font-size: 12.5px;
}
.clab-item:hover { border-color: var(--sky-400, var(--sky-300)); }
.clab-item.active { border-color: var(--sky-500, var(--sky-300)); background: color-mix(in srgb, var(--sky-300) 22%, transparent); }
.clab-item .t { font-weight: 600; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.clab-item .d { color: var(--ink-soft); font-size: 11px; margin-top: 3px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.clab-empty { color: var(--ink-soft); font-size: 12px; line-height: 1.7; margin: 6px 2px; }
.clab-readonly-bar {
  margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line);
  font-size: 11px; color: var(--ink-soft); display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
}

.clab-problem-body {
  max-height: 300px; overflow: auto; font-size: 13px; line-height: 1.75;
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  background: color-mix(in srgb, var(--sky-300) 6%, transparent); margin-bottom: 14px;
}
.clab-problem-body h1, .clab-problem-body h2, .clab-problem-body h3 { font-size: 14px; margin: 12px 0 6px; font-weight: 700; }
.clab-problem-body h1 { font-size: 16px; }
.clab-problem-body p { margin: 6px 0; }
.clab-problem-body pre, .clab-problem-body code {
  font-family: ui-monospace, Consolas, "Cascadia Code", monospace; font-size: 12px;
}
.clab-problem-body pre {
  background: color-mix(in srgb, var(--ink) 6%, transparent); padding: 9px 11px;
  border-radius: 8px; overflow: auto; border: 1px solid var(--line);
}
.clab-problem-body code { padding: 1px 4px; border-radius: 4px; background: color-mix(in srgb, var(--ink) 7%, transparent); }
.clab-problem-body table { border-collapse: collapse; width: 100%; font-size: 12px; }
.clab-problem-body th, .clab-problem-body td { border: 1px solid var(--line); padding: 4px 7px; }
.clab-problem-body ul, .clab-problem-body ol { padding-left: 20px; }

.clab-section-title {
  display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700;
  letter-spacing: 1px; color: var(--ink-soft); margin: 14px 2px 8px;
}
.clab-section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.clab-inline-actions { display: flex; gap: 4px; }
.clab-tp-list { display: flex; flex-direction: column; gap: 5px; max-height: 190px; overflow: auto; }
.clab-tp {
  display: flex; align-items: center; gap: 8px; font-size: 12px;
  border: 1px solid var(--line); border-radius: 9px; padding: 6px 9px; cursor: pointer;
}
.clab-tp:hover { border-color: var(--sky-400, var(--sky-300)); }
.clab-tp input { accent-color: var(--sky-600); }
.clab-tp .lab { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.clab-tp .meta { color: var(--ink-soft); font-size: 10.5px; }

.clab-editor-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.clab-editor-bar label { display: flex; align-items: center; gap: 5px; font-size: 11.5px; color: var(--ink-soft); }
.clab-editor-bar select { width: auto; padding: 5px 7px; font-size: 11.5px; }
#code-editor {
  width: 100%; height: 250px; resize: vertical; box-sizing: border-box;
  font-family: ui-monospace, Consolas, "Cascadia Code", monospace; font-size: 12.5px; line-height: 1.6;
  color: var(--ink); background: var(--card); border: 1px solid var(--line);
  border-radius: 10px; padding: 10px 12px; outline: none; tab-size: 2;
}
.clab-hint { font-size: 11.5px; color: var(--ink-soft); margin-top: 8px; min-height: 16px; }
.clab-hint.err { color: var(--danger); }
.clab-hint.ok { color: var(--ok); }

.clab-field { margin-bottom: 10px; }
.clab-field > label { display: block; font-size: 11.5px; color: var(--ink-soft); margin-bottom: 4px; font-weight: 600; }
.clab-field textarea { height: 78px; resize: vertical; }
.clab-static {
  font-size: 12px; border: 1px dashed var(--line); border-radius: 8px;
  padding: 7px 9px; color: var(--ink-soft); word-break: break-all;
}
.clab-checks { max-height: 130px; overflow: auto; display: flex; flex-direction: column; gap: 4px; }
.clab-check { display: flex; gap: 7px; align-items: center; font-size: 11.5px; }
.clab-check input { accent-color: var(--sky-600); }
.clab-version-info { font-size: 11.5px; color: var(--ink-soft); margin-top: 8px; }

.clab-result-head {
  border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; margin-bottom: 10px;
  font-size: 12.5px; background: color-mix(in srgb, var(--sky-300) 10%, transparent);
}
.clab-badge { display: inline-block; font-size: 11px; font-weight: 700; border-radius: 999px; padding: 2px 9px; margin-right: 6px; }
.st-accepted { background: #d7f5e5; color: #146c43; }
.st-time_limit, .st-memory_limit, .st-stack_overflow { background: #ffe9d6; color: #a04a00; }
.st-wrong_answer, .st-compile_error, .st-runtime_error { background: #ffe0e0; color: #a12b2b; }
.st-pending { background: #e7eef7; color: #35527a; }
.st-partial { background: #fff3cd; color: #7a5b00; }
:root[data-theme="dark"] .st-accepted { background: #17452f; color: #9fe1cb; }
:root[data-theme="dark"] .st-time_limit, :root[data-theme="dark"] .st-memory_limit, :root[data-theme="dark"] .st-stack_overflow { background: #4a3218; color: #f5c496; }
:root[data-theme="dark"] .st-wrong_answer, :root[data-theme="dark"] .st-compile_error, :root[data-theme="dark"] .st-runtime_error { background: #4a2222; color: #f3b4b4; }
:root[data-theme="dark"] .st-pending { background: #26374d; color: #b5d4f4; }
:root[data-theme="dark"] .st-partial { background: #3a3320; color: #f0d79a; }
.clab-rp { border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; margin-bottom: 7px; font-size: 11.5px; }
.clab-rp pre { margin: 6px 0 0; white-space: pre-wrap; word-break: break-all; font-size: 11px; max-height: 130px; overflow: auto; }
.clab-ask-item { font-size: 11.5px; }
.clab-ask-item a { color: var(--sky-600); }

/* ===== 制作台（admin） ===== */
.wb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 12px; margin-bottom: 12px; }
.wb-f { display: flex; flex-direction: column; gap: 3px; font-size: 11.5px; color: var(--ink-soft); }
.wb-f-wide { grid-column: 1 / -1; }
.wb-f input, .wb-f select { width: 100%; font: inherit; font-size: 12.5px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--field, #fff); color: var(--ink); }
#wb-body { width: 100%; min-height: 180px; font: 13px/1.6 ui-monospace, Menlo, Consolas, monospace; padding: 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--field, #fff); color: var(--ink); box-sizing: border-box; }
.wb-tps { display: flex; flex-direction: column; gap: 10px; margin-top: 8px; }
.wb-tp { border: 1px solid var(--line); border-radius: 10px; padding: 8px; background: color-mix(in srgb, var(--sky-300, #cfe6ff) 8%, transparent); }
.wb-tp-row { display: grid; grid-template-columns: 1.1fr 1.4fr repeat(3, 0.7fr) auto; gap: 6px; align-items: center; }
.wb-tp-row input { font: inherit; font-size: 12px; padding: 5px 6px; border: 1px solid var(--line); border-radius: 7px; background: var(--field, #fff); color: var(--ink); min-width: 0; }
.wb-tp-io { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 6px; }
.wb-tp-io textarea, .wb-tp-harness { font: 12px/1.5 ui-monospace, Menlo, Consolas, monospace; padding: 6px; border: 1px solid var(--line); border-radius: 7px; background: var(--field, #fff); color: var(--ink); resize: vertical; }
.wb-tp-io textarea { min-height: 46px; }
.wb-tp-harness { width: 100%; min-height: 40px; margin-top: 6px; }
.wb-st { font-style: normal; font-size: 10.5px; font-weight: 700; border-radius: 999px; padding: 1px 7px; margin-left: 6px; }
.st-draft { background: #e7eef7; color: #35527a; }
.st-published { background: #d7f5e5; color: #146c43; }
.st-archived { background: #eee; color: #777; }
:root[data-theme="dark"] .st-draft { background: #26374d; color: #b5d4f4; }
:root[data-theme="dark"] .st-published { background: #17452f; color: #9fe1cb; }
:root[data-theme="dark"] .st-archived { background: #2a2a2a; color: #aaa; }
.clab-btn.danger { color: #a12b2b; border-color: #e3b3b3; }
.clab-btn.danger:hover { background: #ffe0e0; }
#wb-sc-code { width: 100%; min-height: 150px; font: 13px/1.6 ui-monospace, Menlo, Consolas, monospace; padding: 10px; border: 1px solid var(--line); border-radius: 10px; background: var(--field, #fff); color: var(--ink); box-sizing: border-box; }

/* 制作台反馈条：始终可见，保证「点按钮有反馈」 */
.wb-hintbar {
  margin: 0 0 10px; padding: 7px 10px; min-height: 30px;
  border: 1px solid var(--line); border-radius: 10px;
  background: color-mix(in srgb, var(--sky-300) 8%, transparent);
  display: flex; align-items: center;
}
.wb-hintbar .clab-hint { margin: 0; font-size: 12px; }
.wb-hintbar .clab-hint.err { color: var(--danger); font-weight: 600; }
.wb-hintbar .clab-hint.ok { color: var(--ok); font-weight: 600; }

/* 制作台中栏：保证题面编辑区不被挤扁（窄屏时测试点表格可换行） */
.wb-mid { min-width: 0; }
@media (max-width: 1180px) {
  .wb-mid { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .wb-tp-row { grid-template-columns: 1fr 1fr; }
  .wb-tp-io { grid-template-columns: 1fr; }
}