/* ============================================================
   刷题台 · IEEE 学术论文风格配色（MATLAB 学术图配色系）
   蓝 #0072BD 橙 #D95319 黄 #EDB120 紫 #7E2F8E
   绿 #77AC30 天蓝 #4DBEEE 深红 #A2142F
   ============================================================ */
:root {
  --blue: #0072BD;        /* 主色：论文图常用深蓝 */
  --blue-deep: #005a94;
  --blue-tint: #eaf3f9;
  --orange: #D95319;
  --yellow: #EDB120;
  --purple: #7E2F8E;
  --green: #77AC30;
  --sky: #4DBEEE;
  --red: #A2142F;

  --paper: #F7F6F2;       /* 纸面背景 */
  --panel: #FFFFFF;
  --panel-2: #FBFBF8;
  --line: #DDD9CD;
  --line-soft: #EAE7DC;
  --ink: #222222;
  --ink-2: #55524B;
  --ink-3: #8B877C;

  --mono: "SF Mono", ui-monospace, Menlo, Consolas, "JetBrains Mono", "Cascadia Code", monospace;
  --sans: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --serif: Georgia, "Times New Roman", "Songti SC", SimSun, serif;

  --diff-e: var(--green);
  --diff-m: var(--orange);
  --diff-h: var(--red);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink);
  background: var(--paper);
  overflow: hidden;
}
::selection { background: rgba(0, 114, 189, 0.18); }

/* ---------- 顶栏 ---------- */
#topbar {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 16px;
  background: var(--panel);
  border-bottom: 3px solid var(--blue);
  z-index: 10;
  position: relative;
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 5px;
  background: var(--blue);
  color: #fff; font-family: var(--serif); font-weight: 700;
  display: grid; place-items: center; font-size: 15px;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,.15);
}
.brand-text { line-height: 1.15; }
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: .5px; }
.brand-sub { color: var(--orange); font-size: 11px; font-weight: 600; margin-left: 4px; }
.brand-caption { font-size: 10.5px; color: var(--ink-3); letter-spacing: .8px; }

.top-stats { display: flex; align-items: center; gap: 12px; margin-left: auto; font-size: 12px; color: var(--ink-2); }
.stat { white-space: nowrap; }
.stat b { color: var(--ink); font-variant-numeric: tabular-nums; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 3px; }
.dot-mastered { background: var(--green); }
.dot-review { background: var(--orange); }
.stat-bar { width: 90px; height: 6px; border-radius: 4px; background: var(--line-soft); overflow: hidden; }
.stat-bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--blue), var(--sky)); transition: width .3s; }

.top-user { display: flex; align-items: center; gap: 8px; }
.avatar { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--line); background: var(--blue-tint); }
.user-name { font-size: 12.5px; max-width: 130px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.guest-tag { font-size: 11px; color: var(--ink-3); border: 1px dashed var(--line); padding: 3px 8px; border-radius: 20px; }

/* ---------- 布局 ---------- */
#layout {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr) minmax(340px, 44%);
  height: calc(100vh - 54px);
}
#layout.side-hide { grid-template-columns: 0 minmax(0, 1fr) minmax(340px, 46%); }
#layout.code-hide { grid-template-columns: 330px minmax(0, 1fr) 0; }
#sidebar, #codePane { transition: min-width .2s; overflow: hidden; }

/* ---------- 左栏 ---------- */
#sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  min-width: 0;
}
.side-block { padding: 10px 12px 8px; border-bottom: 1px solid var(--line-soft); }
.side-label {
  font-size: 10px; color: var(--blue); letter-spacing: 2.5px;
  text-transform: uppercase; margin-bottom: 8px; font-weight: 700;
}
.seg { display: flex; background: var(--panel-2); border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.seg-btn {
  flex: 1; border: 0; background: transparent; cursor: pointer;
  padding: 6px 4px; font-size: 12px; color: var(--ink-2); font-family: inherit;
  transition: background .15s, color .15s;
}
.seg-btn em { font-style: normal; font-size: 10px; opacity: .7; margin-left: 2px; font-variant-numeric: tabular-nums; }
.seg-btn:hover { background: var(--blue-tint); }
.seg-btn.active { background: var(--blue); color: #fff; font-weight: 600; }
.seg-btn.active em { opacity: .85; }

.filters { padding-bottom: 8px; display: grid; gap: 8px; }
#searchInput, select {
  width: 100%; font-family: inherit; font-size: 12.5px;
  border: 1px solid var(--line); border-radius: 6px;
  padding: 6px 8px; background: var(--panel-2); color: var(--ink); outline: none;
}
#searchInput:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(0,114,189,.12); }
.frow { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 6px; }

.qlist-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px 6px; font-size: 11px; font-weight: 700; color: var(--ink-2);
  letter-spacing: 1.5px;
}
.icon-btn {
  border: 1px solid var(--line); background: var(--panel); border-radius: 6px;
  width: 24px; height: 24px; cursor: pointer; font-size: 12px; line-height: 1;
}
.icon-btn:hover { border-color: var(--blue); background: var(--blue-tint); }

#qlist { flex: 1; overflow-y: auto; padding: 0 6px 8px; }
.qrow {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 8px; border-radius: 6px; cursor: pointer;
  border-left: 3px solid transparent;
  border-bottom: 1px solid transparent;
}
.qrow:hover { background: var(--panel-2); }
.qrow.active {
  background: var(--blue-tint);
  border-left-color: var(--blue);
}
.qrow.active .q-title { color: var(--blue-deep); font-weight: 600; }
.q-no { font-family: var(--mono); font-size: 10.5px; color: var(--ink-3); width: 30px; flex: none; text-align: right; }
.q-main { flex: 1; min-width: 0; }
.q-title { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.q-meta { display: flex; align-items: center; gap: 6px; margin-top: 1px; font-size: 10.5px; color: var(--ink-3); }
.tag-mini { color: var(--blue); border: 1px solid rgba(0,114,189,.35); padding: 0 4px; border-radius: 3px; font-size: 9.5px; background: var(--blue-tint); }
.heat { color: var(--orange); font-variant-numeric: tabular-nums; }
.q-state { display: flex; gap: 4px; flex: none; align-items: center; }
.q-state .st { width: 7px; height: 7px; border-radius: 50%; background: var(--line); }
.q-state .st.done { background: var(--green); }
.q-state .st.rev { background: var(--orange); }
.q-state .fa { color: var(--yellow); font-size: 12px; text-shadow: 0 0 0 var(--yellow); }

.side-foot {
  border-top: 1px solid var(--line-soft); padding: 7px 12px;
  font-size: 10.5px; color: var(--ink-3); text-align: center;
}

/* ---------- 中间：题目 ---------- */
#docPane { overflow-y: auto; background: var(--paper); min-width: 0; }
#emptyTip {
  max-width: 560px; margin: 15vh auto 0; text-align: center; color: var(--ink-2); padding: 0 24px;
}
#emptyTip h1 { font-family: var(--serif); color: var(--blue); font-size: 30px; margin-bottom: 8px; }
#emptyTip p { line-height: 1.8; }
#emptyTip .hint { font-size: 11.5px; color: var(--ink-3); }

#doc { padding: 22px 34px 60px; max-width: 980px; margin: 0 auto; }
.doc-head { border-bottom: 1px solid var(--line); padding-bottom: 14px; margin-bottom: 6px; }
.doc-title-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.doc-no { font-family: var(--mono); color: var(--ink-3); font-size: 13px; }
.doc-title { font-size: 21px; font-weight: 700; }
.doc-title-en { font-size: 12px; color: var(--ink-3); }
.doc-badges { display: flex; gap: 8px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 3px 9px; border-radius: 20px; border: 1px solid transparent; }
.badge.E { color: #3e6b16; background: rgba(119,172,48,.14); border-color: rgba(119,172,48,.5); }
.badge.M { color: #9c3d12; background: rgba(217,83,25,.12); border-color: rgba(217,83,25,.5); }
.badge.H { color: var(--red); background: rgba(162,20,47,.08); border-color: rgba(162,20,47,.45); }
.badge.tag { color: var(--blue-deep); background: var(--blue-tint); border-color: rgba(0,114,189,.25); }
.badge.ct { color: var(--orange); background: rgba(217,83,25,.07); border-color: rgba(217,83,25,.35); }
.badge.ct b { font-weight: 600; }
.badge.hot { color: var(--purple); background: rgba(126,47,142,.07); border-color: rgba(126,47,142,.3); }
.link-out { margin-left: auto; font-size: 12px; color: var(--blue); text-decoration: none; border-bottom: 1px dashed rgba(0,114,189,.5); }
.link-out:hover { color: var(--blue-deep); }

.doc-progress-row { display: flex; align-items: center; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.btn {
  border: 1px solid transparent; border-radius: 6px; padding: 6px 13px;
  font-size: 12.5px; font-family: inherit; cursor: pointer; transition: all .15s;
}
.btn.primary { background: var(--blue); color: #fff; }
.btn.primary:hover { background: var(--blue-deep); }
.btn.ghost { background: var(--panel); border-color: var(--line); color: var(--ink-2); }
.btn.ghost:hover { border-color: var(--blue); color: var(--blue-deep); }
.btn.star-btn.active { background: #FFF6DA; border-color: var(--yellow); color: #8a6d00; }
.btn.mastered { background: var(--green); border-color: var(--green); color: #fff; }
.btn.reviewing { background: var(--orange); border-color: var(--orange); color: #fff; }
.btn:disabled { opacity: .5; cursor: default; }

.doc-body { margin-top: 14px; line-height: 1.85; }
.doc-sec-title {
  font-size: 15px; font-weight: 700; margin: 26px 0 10px;
  display: flex; align-items: center; gap: 8px;
}
.doc-sec-title::before {
  content: ""; width: 12px; height: 3px; background: var(--blue); border-radius: 2px;
}
.sec-desc { color: var(--ink); }
.sec-desc .sample {
  background: var(--panel); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px 14px; font-family: var(--mono); font-size: 12.5px;
  color: var(--ink-2); margin: 8px 0; white-space: pre-wrap;
}
.md { font-size: 13.5px; }
.md p { margin: 8px 0; }
.md ul, .md ol { margin: 8px 0; padding-left: 22px; }
.md li { margin: 4px 0; }
.md code {
  font-family: var(--mono); font-size: 12px; background: #EEEDE7;
  border: 1px solid var(--line-soft); padding: 1px 5px; border-radius: 4px; color: #9c3d12;
}
.md strong { color: var(--blue-deep); font-weight: 700; }
.md .complex { display: block; background: #EFF5EC; border-left: 3px solid var(--green); padding: 6px 12px; border-radius: 0 6px 6px 0; font-size: 12.5px; margin: 10px 0; }
.md .note2 { display: block; background: #FDF3E7; border-left: 3px solid var(--orange); padding: 6px 12px; border-radius: 0 6px 6px 0; font-size: 12.5px; margin: 10px 0; }

.notes-box { margin-top: 30px; border-top: 1px dashed var(--line); padding-top: 10px; }
.notes-box summary { cursor: pointer; font-weight: 600; font-size: 13px; color: var(--ink-2); user-select: none; }
#noteInput {
  width: 100%; min-height: 74px; margin-top: 8px; resize: vertical;
  font-family: inherit; font-size: 13px; line-height: 1.7;
  border: 1px solid var(--line); border-radius: 6px; padding: 8px 10px;
  background: var(--panel-2); color: var(--ink); outline: none;
}
#noteInput:focus { border-color: var(--blue); box-shadow: 0 0 0 2px rgba(0,114,189,.1); }
.note-save-state { font-size: 11px; color: var(--ink-3); float: right; margin-top: 4px; }
.key-nav { margin-top: 26px; font-size: 11px; color: var(--ink-3); }

/* ---------- 右侧：代码 ---------- */
#codePane {
  background: var(--panel);
  border-left: 1px solid var(--line);
  display: flex; flex-direction: column; min-width: 0;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 9px 10px; border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}
.lang-seg { flex: none; }
.lang-label { display: flex; }
.lang-pill {
  background: var(--blue); color: #fff; font-weight: 600; font-size: 12px;
  border-radius: 6px; padding: 5px 16px; letter-spacing: .5px; font-family: var(--mono);
}
.code-actions { display: flex; align-items: center; gap: 8px; }
.editor-state { font-size: 11px; color: var(--green); font-weight: 600; }
.ghost-btn {
  border: 1px solid var(--line); background: var(--panel); border-radius: 6px;
  padding: 5px 10px; font-size: 12px; font-family: inherit; color: var(--ink-2); cursor: pointer;
}
.ghost-btn:hover { border-color: var(--blue); color: var(--blue-deep); }

#editorWrap { flex: 1; min-height: 0; position: relative; background: #FCFBF8; }
#editorWrap .fallback-hint {
  position: absolute; top: 8px; right: 12px; font-size: 11px; color: var(--ink-3); z-index: 5;
}
#editor { width: 100%; height: 100%; border: 0; resize: none; outline: none; background: #FCFBF8; }

/* CodeMirror（自带精简版样式，保证无外网主题也能工作） */
.CodeMirror {
  height: 100%; font-family: var(--mono); font-size: 13px; line-height: 1.65;
  color: var(--ink); direction: ltr; background: #FCFBF8;
}
.CodeMirror-scroll { overflow: auto; height: 100%; outline: none; }
.CodeMirror-lines { padding: 8px 0 40px; }
.CodeMirror pre.CodeMirror-line,
.CodeMirror pre.CodeMirror-line-like {
  padding: 0 14px 0 8px; margin: 0; white-space: pre; word-wrap: normal; border-radius: 0;
  border-width: 0; background: transparent; color: inherit; font-family: inherit; font-size: inherit;
}
.CodeMirror-gutters {
  border-right: 1px solid var(--line-soft); background: #F5F4EF;
  white-space: nowrap; position: absolute; left: 0; top: 0; min-height: 100%;
  z-index: 3; padding-right: 6px;
}
.CodeMirror-linenumber { padding: 0 6px 0 8px; min-width: 18px; text-align: right; color: #B4B0A4; font-size: 11px; }
.CodeMirror-gutter-wrapper { position: absolute; left: 0; }
.CodeMirror-cursor { border-left: 1.5px solid var(--blue); border-right: none; width: 0; position: absolute; }
div.CodeMirror-cursors { visibility: hidden; position: relative; z-index: 3; }
div.CodeMirror-dragcursors { visibility: visible; }
.CodeMirror-focused div.CodeMirror-cursors { visibility: visible; }
.CodeMirror-selected { background: rgba(0,114,189,.16) !important; }
.CodeMirror-focused .CodeMirror-selected { background: rgba(0,114,189,.22) !important; }
.CodeMirror-line::selection, .CodeMirror-line > span::selection,
.CodeMirror-line > span > span::selection { background: rgba(0,114,189,.22); }
.CodeMirror-matchingbracket { outline: 1px solid rgba(0,114,189,.5); color: inherit !important; }
.cm-s-default .cm-keyword { color: #7E2F8E; font-weight: 600; }
.cm-s-default .cm-def { color: #005a94; }
.cm-s-default .cm-variable { color: #222; }
.cm-s-default .cm-variable-2 { color: #223a5e; }
.cm-s-default .cm-variable-3 { color: #A2142F; }
.cm-s-default .cm-number { color: #0072BD; }
.cm-s-default .cm-string, .cm-s-default .cm-string-2 { color: #6f5416; }
.cm-s-default .cm-comment { color: #8B877C; font-style: italic; }
.cm-s-default .cm-operator { color: #55524B; }
.cm-s-default .cm-builtin { color: #5b7319; }
.cm-s-default .cm-type { color: #A2142F; }
.cm-s-default .cm-atom { color: #0072BD; }
.cm-s-default .cm-tag { color: #7E2F8E; }
.cm-s-default .cm-attribute { color: #005a94; }

.code-tip {
  border-top: 1px solid var(--line-soft); background: var(--panel-2);
  padding: 6px 12px; font-size: 11px; color: var(--ink-3); line-height: 1.6;
}

/* ---------- 模态 / Toast ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(20,20,20,.35); z-index: 100;
  display: grid; place-items: center;
}
.modal {
  background: var(--panel); border-radius: 10px; padding: 26px 30px;
  width: min(420px, 90vw); box-shadow: 0 18px 50px rgba(0,0,0,.22);
  border-top: 4px solid var(--blue);
}
.modal h3 { margin: 0 0 6px; font-size: 18px; }
.modal-sub { color: var(--ink-2); font-size: 12.5px; line-height: 1.7; margin: 0 0 18px; }
#oauthBtns { display: grid; gap: 10px; }
.oauth-btn {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--line); background: var(--panel); border-radius: 7px;
  padding: 10px; font-size: 14px; font-family: inherit; cursor: pointer; color: var(--ink);
}
.oauth-btn:hover { border-color: var(--blue); background: var(--blue-tint); }
.modal-close { margin-top: 14px; width: 100%; }

#toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 8px 18px; border-radius: 8px;
  font-size: 13px; z-index: 200; box-shadow: 0 6px 20px rgba(0,0,0,.25);
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: #CCC7B8; border-radius: 6px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #AFA998; background-clip: content-box; border: 2px solid transparent; }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- 窄屏 ---------- */
@media (max-width: 1200px) {
  #layout { grid-template-columns: 290px minmax(0,1fr) minmax(320px,42%); }
  #layout.side-hide { grid-template-columns: 0 minmax(0,1fr) minmax(320px,46%); }
  .doc-title { font-size: 18px; }
  #doc { padding: 16px 20px 50px; }
}


/* ---------- hidden 属性兜底（避免被 display 布局覆盖） ---------- */
[hidden] { display: none !important; }

/* ============================================================
   学习打卡 · 30 天练习矩阵（深色面板，IEEE 学术配色点缀）
   ============================================================ */
/* ---------- 顶栏入口 ---------- */
.goal-entry {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--line); background: var(--panel); border-radius: 7px;
  padding: 6px 12px; font: 600 12px/1 var(--sans); color: var(--ink-2);
  cursor: pointer; white-space: nowrap; transition: all .15s;
}
.goal-entry:hover { border-color: var(--green); color: #557f1e; background: #f4f9ec; }
.goal-entry b { color: var(--blue); font: 600 11px var(--mono); font-variant-numeric: tabular-nums; }
.ge-dot { width: 7px; height: 7px; border-radius: 50%; background: #CDC8BA; display: inline-block; }
.ge-dot.on { background: var(--green); box-shadow: 0 0 0 3px rgba(119, 172, 48, .2); }

/* ---------- 遮罩与面板 ---------- */
.goal-mask {
  position: fixed; inset: 0; z-index: 150; display: grid; place-items: center;
  padding: 18px; background: rgba(8, 10, 15, .68); backdrop-filter: blur(3px);
}
.goal-panel {
  width: min(880px, 96vw); max-height: calc(100vh - 36px); overflow-y: auto;
  background: #15181F; color: #E9EDF2;
  border: 1px solid rgba(255, 255, 255, .09); border-radius: 16px;
  padding: 22px 24px 16px; box-shadow: 0 26px 80px rgba(0, 0, 0, .55);
}
.goal-panel::-webkit-scrollbar { width: 8px; }
.goal-panel::-webkit-scrollbar-thumb { background: #39414E; border: 0; border-radius: 6px; }

.goal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; border-bottom: 1px solid rgba(255, 255, 255, .08); padding-bottom: 14px; }
.goal-kicker { font-size: 10px; letter-spacing: 2.6px; color: #4DBEEE; font-weight: 700; margin-bottom: 7px; }
.goal-head h2 { margin: 0; font-size: 21px; color: #fff; font-weight: 700; }
.goal-subtitle { font-size: 12px; color: #8B93A1; font-weight: 500; margin-left: 10px; letter-spacing: .5px; }
.goal-close {
  width: 38px; height: 38px; border-radius: 50%; flex: none;
  border: 1px solid rgba(255, 255, 255, .16); background: rgba(255, 255, 255, .05);
  color: #C9D0DA; font-size: 15px; line-height: 1; cursor: pointer; transition: all .15s;
}
.goal-close:hover { background: var(--red); border-color: var(--red); color: #fff; }

/* ---------- 大数字卡片 ---------- */
.goal-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 16px 0 14px; }
.goal-card {
  background: linear-gradient(180deg, #1D222B, #191D25);
  border: 1px solid rgba(255, 255, 255, .07); border-top: 3px solid #4DBEEE;
  border-radius: 10px; padding: 14px 14px 12px; min-width: 0;
}
.goal-card.c-today { border-top-color: #77AC30; }
.goal-card.c-goal { border-top-color: #4DBEEE; }
.goal-card.c-streak { border-top-color: #D95319; }
.goal-card.c-total { border-top-color: #EDB120; }
.goal-label { font-size: 11px; color: #98A1AF; letter-spacing: 1.2px; margin-bottom: 9px; }
.c-today .goal-label { color: #A9D863; }
.c-goal .goal-label { color: #7FD0F0; }
.c-streak .goal-label { color: #F09468; }
.c-total .goal-label { color: #F2CD72; }
.goal-num {
  display: flex; align-items: baseline; gap: 5px;
  font: 700 33px/1 var(--serif); color: #fff; font-variant-numeric: tabular-nums;
}
.goal-num small { font: 500 11px var(--sans); color: #8B93A1; }
.goal-num-input { align-items: center; }
#goalDaily {
  width: 78px; background: transparent; border: 0; outline: none;
  border-bottom: 2px solid rgba(77, 190, 238, .55); border-radius: 0;
  color: #fff; font: 700 27px var(--serif); text-align: center;
  padding: 0 0 2px; -moz-appearance: textfield; appearance: textfield;
}
#goalDaily::-webkit-outer-spin-button, #goalDaily::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
#goalDaily:focus { border-bottom-color: #4DBEEE; }
.goal-sub { margin-top: 9px; font-size: 10.5px; color: #7E8794; line-height: 1.5; }

/* ---------- 打卡按钮 ---------- */
.goal-checkrow { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin: 2px 0 18px; }
.goal-checkin {
  min-width: 200px; padding: 11px 26px; border-radius: 9px; letter-spacing: 1.5px;
  border: 1px solid rgba(77, 190, 238, .65); background: rgba(77, 190, 238, .12);
  color: #8CD4F4; font: 700 14px/1 var(--sans); cursor: pointer; transition: all .15s;
}
.goal-checkin:hover { background: rgba(77, 190, 238, .24); }
.goal-checkin.on {
  background: linear-gradient(135deg, #77AC30, #5A8A1E);
  border-color: #77AC30; color: #fff;
}
.goal-checkin.on:hover { filter: brightness(1.1); }
.goal-check-state { font-size: 12.5px; color: #98A1AF; line-height: 1.7; min-width: 0; }
.goal-check-state b { color: #4DBEEE; font-variant-numeric: tabular-nums; }

/* ---------- 30 天矩阵 ---------- */
.goal-matrix-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.goal-matrix-title { font-size: 13.5px; font-weight: 700; color: #DFE5EC; }
.goal-matrix-title span { font-weight: 400; font-size: 10.5px; color: #7E8794; margin-left: 8px; }
.goal-legend { display: flex; align-items: center; gap: 4px; font-size: 10px; color: #98A1AF; flex-wrap: wrap; row-gap: 7px; }
.goal-legend > span { margin: 0 2px 0 7px; }
.goal-legend .gm { margin: 0 1px; }
.goal-legend .gm:last-child { margin-right: 0; }

.goal-matrix {
  display: flex; gap: 8px; padding: 12px 14px;
  background: rgba(0, 0, 0, .24); border: 1px solid rgba(255, 255, 255, .06);
  border-radius: 12px; overflow-x: auto;
}
.gp-wdays { display: grid; grid-template-rows: repeat(7, 18px); gap: 5px; }
.gp-wdays span { font-size: 9px; color: #6E7683; display: grid; place-items: center; }
.gp-weeks { display: flex; gap: 5px; }
.gp-week { display: grid; grid-template-rows: repeat(7, 18px); gap: 5px; }

.gp-cell, .gm {
  width: 18px; height: 18px; border-radius: 4px; box-sizing: border-box;
  display: grid; place-items: center; flex: none;
  font: 600 8.5px/1 var(--mono); color: rgba(255, 255, 255, .6);
  user-select: none;
}
.gp-cell.blank { background: transparent; }
.gp-cell.g0, .gm.g0 { background: #232931; color: rgba(255, 255, 255, .35); }
.gp-cell.ok0, .gm.ok0 { background: rgba(77, 190, 238, .15); border: 1px solid rgba(77, 190, 238, .55); color: #9ADCF5; }
.gp-cell.g1, .gm.g1 { background: #2C4430; }
.gp-cell.g2, .gm.g2 { background: #42602D; }
.gp-cell.g3, .gm.g3 { background: #5C842F; color: rgba(245, 250, 240, .85); }
.gp-cell.g4, .gm.g4 { background: #77AC30; color: #14330E; font-weight: 700; }
.gp-cell.today, .gm.todaykey { box-shadow: 0 0 0 1.5px #4DBEEE; }
.gm.todaykey { background: #232931; border-radius: 4px; }
.gp-cell.clickable { cursor: pointer; }
.gp-cell.clickable:hover { filter: brightness(1.3); }

.goal-foot { margin-top: 14px; font-size: 10.5px; color: #66707D; text-align: center; line-height: 1.8; border-top: 1px solid rgba(255, 255, 255, .06); padding-top: 12px; }

@media (max-width: 820px) {
  .goal-cards { grid-template-columns: repeat(2, 1fr); }
  .goal-panel { padding: 18px 16px 14px; }
  .goal-subtitle { display: none; }
}
@media (max-width: 560px) {
  .goal-cards { grid-template-columns: 1fr; }
  .goal-matrix-title span { display: none; }
  .goal-checkin { width: 100%; }
}