/* ============================================================
 * css/calcpro.css —— 专业数学计算器（Win 3.1 皮肤）
 * ============================================================ */
.cpx-root { display: flex; flex-direction: column; height: 100%; background: var(--face, #c0c0c0); font-size: 12px; }
.cpx-bar { display: flex; flex-wrap: wrap; gap: 2px; align-items: center; padding: 3px; border-bottom: 1px solid #808080; }
.cpx-bar .btn31 { flex: 0 0 auto; }
.cpx-flex { flex: 1; }
.cpx-lab { color: #303030; padding: 0 3px; }
.cpx-sel { height: 20px; }
.cpx-io { display: flex; gap: 2px; flex-wrap: wrap; }

.cpx-main { flex: 1; min-height: 0; display: flex; }
.cpx-left { flex: 0 0 208px; overflow: auto; border-right: 1px solid #808080; padding: 3px; display: flex; flex-direction: column; gap: 2px; }
.cpx-side-head { font-weight: bold; color: #000080; padding: 3px 2px; border-bottom: 1px solid #a0a0a0; margin-bottom: 2px; }
.cpx-feat { text-align: left !important; width: 100%; }
.cpx-center { flex: 1; min-width: 0; display: flex; flex-direction: column; background: var(--face, #c0c0c0); }
.cpx-right { flex: 0 0 268px; display: flex; flex-direction: column; border-left: 1px solid #808080; background: var(--face, #c0c0c0); }
.cpx-rtabs { display: flex; gap: 2px; padding: 3px; border-bottom: 1px solid #808080; }
.cpx-rtabs .btn31 { flex: 1; min-width: 0; }
.cpx-rtabs .btn31.active { border: 2px inset var(--face, #c0c0c0); background: #dcdcdc; font-weight: bold; }
.cpx-rbody { flex: 1; min-height: 0; overflow: auto; padding: 3px; }

.cpx-inwrap { padding: 4px; }
.cpx-input {
  width: 100%; box-sizing: border-box; font-family: 'Win31System', 'MSSansPixel', 'F31Hans', monospace; font-size: 13px;
  border: 2px inset var(--face, #c0c0c0); background: #fff; padding: 4px; resize: vertical; min-height: 58px;
}
.cpx-kabar { display: flex; flex-direction: column; gap: 2px; padding: 0 4px 4px; }
.cpx-krow { display: flex; gap: 2px; }
.cpx-key { flex: 1 1 0; min-width: 0; text-align: center; font-family: monospace; }
.cpx-res { flex: 1; min-height: 80px; overflow: auto; margin: 0 4px 4px; padding: 6px; background: #fff; border: 2px inset var(--face, #c0c0c0); }
.cpx-rrow { display: flex; gap: 6px; align-items: baseline; padding: 2px 0; flex-wrap: wrap; }
.cpx-rlab { flex: 0 0 128px; color: #404040; }
.cpx-rval { flex: 1; min-width: 0; font-family: monospace; font-size: 14px; word-break: break-all; cursor: pointer; }
.cpx-err { color: #a00000; background: #ffe8e8; border: 1px solid #a00000; padding: 6px; margin: 4px; }
.cpx-step { padding: 3px 2px; border-bottom: 1px dotted #b0b0b0; word-break: break-word; }
.cpx-step code { font-family: monospace; font-size: 11px; color: #000080; }

.cpx-hlist { display: flex; flex-direction: column; }
.cpx-hrow { display: flex; gap: 3px; align-items: flex-start; padding: 3px 2px; border-bottom: 1px solid #e0e0e0; }
.cpx-htime { flex: 0 0 74px; font-size: 10px; color: #606060; }
.cpx-hbody { flex: 1; min-width: 0; cursor: pointer; }
.cpx-hin { font-size: 11px; word-break: break-all; }
.cpx-hres { font-size: 11px; color: #000080; font-weight: bold; word-break: break-all; }
.cpx-hbtn { flex: 0 0 auto; display: flex; gap: 1px; }
.cpx-hbtn .btn31 { min-width: 0 !important; padding: 0 3px; font-size: 11px; height: 17px; }
.cpx-srow { display: flex; gap: 2px; padding: 3px 0; flex-wrap: wrap; align-items: center; }
.cpx-srow .input31 { flex: 1; min-width: 60px; }
.cpx-vrow { display: flex; gap: 4px; align-items: center; padding: 2px 0; border-bottom: 1px dotted #c0c0c0; }
.cpx-vname { flex: 0 0 84px; font-weight: bold; word-break: break-all; }
.cpx-vexpr { flex: 1; min-width: 0; cursor: pointer; word-break: break-all; color: #000080; }
.cpx-vrow .btn31 { min-width: 0 !important; padding: 0 4px; }

.cpx-graph { flex: 1; min-height: 120px; display: flex; flex-direction: column; background: #fff; }
.cpx-canvas { flex: 1; width: 100%; min-height: 100px; display: block; cursor: crosshair; }
.cpx-gbar { display: flex; flex-wrap: wrap; gap: 2px; padding: 3px; border-top: 1px solid #808080; background: var(--face, #c0c0c0); }
.cpx-gbar .btn31 { font-size: 11px; }

.cpx-dlg { position: fixed; z-index: 100030; min-width: 400px; max-width: 90vw; }
.cpx-dlgrow { display: flex; gap: 6px; align-items: center; padding: 2px 0; }
.cpx-dlglab { flex: 0 0 132px; color: #303030; }
.cpx-dlgrow textarea { flex: 1; min-height: 70px; box-sizing: border-box; }

/* 深色模式（仅作用于计算器窗口内部） */
.cpx-root.cpx-dark { --face: #3a3a3a; background: #2b2b2b; color: #e8e8e8; }
.cpx-dark .cpx-bar, .cpx-dark .cpx-rtabs, .cpx-dark .cpx-gbar { background: #333; border-color: #111; }
.cpx-dark .cpx-left, .cpx-dark .cpx-right { background: #333; border-color: #111; }
.cpx-dark .cpx-center { background: #2b2b2b; }
.cpx-dark .cpx-input, .cpx-dark .cpx-res { background: #1b1b1b; color: #f0f0f0; border-color: #444; }
.cpx-dark .cpx-side-head { color: #9ec4ff; border-color: #555; }
.cpx-dark .cpx-rlab, .cpx-dark .cpx-lab { color: #b0b0b0; }
.cpx-dark .cpx-rval { color: #ffd479; }
.cpx-dark .cpx-hres, .cpx-dark .cpx-vexpr { color: #9ec4ff; }
.cpx-dark .cpx-hrow, .cpx-dark .cpx-vrow, .cpx-dark .cpx-step { border-color: #4a4a4a; }
.cpx-dark .cpx-htime { color: #909090; }
.cpx-dark .cpx-graph { background: #1b1b1b; }

/* ---- p43: 结果区直接渲染 LaTeX ---- */
.cpx-texrow { align-items: center; }
.cpx-tex { display: inline-block; padding: 2px 6px; background: rgba(127,127,127,.12); border-radius: 2px; color: inherit; }
.cpx-tex .lx { font-size: 15px; }
.cpx-dark .cpx-tex { background: rgba(255,255,255,.08); }