/* ═══════════ 蓝图工坊 · 工程制图风 ═══════════ */
:root {
  --bp: #0d3b66;
  --bp2: #0a3054;
  --bp3: #12456f;
  --line: rgba(178, 217, 255, .38);
  --line-soft: rgba(178, 217, 255, .16);
  --ink: #dcedff;
  --ink2: #8fb8e0;
  --hi: #ffe58f;
  --ok: #7ef2b2;
  --bad: #ff9b9b;
  --mono: "Cascadia Code", Consolas, "JetBrains Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  min-height: 100vh; padding: 26px 14px 40px;
  color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  background:
    linear-gradient(rgba(178, 217, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(178, 217, 255, .05) 1px, transparent 1px),
    linear-gradient(rgba(178, 217, 255, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(178, 217, 255, .09) 1px, transparent 1px),
    radial-gradient(ellipse 90% 70% at 50% 0%, var(--bp3), var(--bp2) 55%, #082847);
  background-size: 12px 12px, 12px 12px, 60px 60px, 60px 60px, 100% 100%;
}

/* ── 图纸框 ── */
.sheet {
  max-width: 1060px; margin: 0 auto;
  border: 2px solid var(--line);
  outline: 1px solid var(--line-soft);
  outline-offset: 6px;
  padding: 0 0 34px;
  background: rgba(9, 40, 70, .35);
  box-shadow: 0 24px 70px rgba(0, 10, 25, .55);
}

/* ── 图签标题栏 ── */
.titleblock {
  display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: stretch;
  border-bottom: 2px solid var(--line);
  padding: 18px 24px;
}
.tb-mark {
  align-self: center; display: flex; align-items: center; gap: 14px;
  border: 1px solid var(--line); padding: 12px 16px;
}
.glyph { font-size: 30px; color: var(--hi); line-height: 1; }
.led {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 10px var(--ok);
  animation: blink 2.4s ease-in-out infinite;
}
@keyframes blink { 50% { opacity: .25; } }

.tb-name h1 {
  font-size: 27px; letter-spacing: 12px; font-weight: 800;
  text-shadow: 0 0 24px rgba(178, 217, 255, .35);
}
.tb-name p {
  margin-top: 6px; font-size: 11px; letter-spacing: 3px; color: var(--ink2);
  font-family: var(--mono);
}
.tb-cells { display: flex; align-self: stretch; }
.tb-cells > div {
  display: grid; align-content: center; gap: 4px; text-align: center;
  padding: 0 18px; border-left: 1px solid var(--line);
}
.tb-cells small { font-size: 10px; letter-spacing: 3px; color: var(--ink2); }
.tb-cells b { font-size: 13px; font-family: var(--mono); color: var(--hi); letter-spacing: 1px; }

/* ── 工具索引 ── */
.index {
  display: flex; flex-wrap: wrap; gap: 0;
  border-bottom: 1px solid var(--line);
}
.tab {
  flex: 1 1 auto; min-width: 130px;
  display: flex; align-items: center; gap: 10px; justify-content: center;
  padding: 13px 16px; cursor: pointer;
  background: none; border: none; border-right: 1px solid var(--line-soft);
  color: var(--ink2); font-family: inherit; font-size: 14px; letter-spacing: 2px;
  transition: all .2s;
}
.tab i { font-style: normal; font-family: var(--mono); font-size: 11px; color: var(--hi); opacity: .7; }
.tab:hover { color: var(--ink); background: rgba(178, 217, 255, .07); }
.tab.active {
  color: var(--ink);
  background: rgba(178, 217, 255, .12);
  box-shadow: inset 0 -3px 0 var(--hi);
}

/* ── 绘图板 ── */
.board { padding: 26px 26px 0; }
.tool { animation: draw .35s ease both; }
@keyframes draw { from { opacity: 0; transform: translateY(10px); } }
.tool[hidden] { display: none; }

.fig {
  font-size: 16px; letter-spacing: 4px; margin-bottom: 16px;
  color: var(--ink); display: flex; align-items: center; gap: 14px;
}
.fig::after { content: ""; flex: 1; border-top: 1px dashed var(--line); }

/* ── 面板 ── */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 14px; }
.pane { border: 1px solid var(--line); padding: 14px; background: rgba(8, 30, 55, .5); }
.pane label, .acts label {
  display: block; font-size: 10.5px; letter-spacing: 3px;
  color: var(--ink2); margin-bottom: 9px; font-family: var(--mono);
}
.out-pane { position: relative; }

textarea, .ipt {
  width: 100%; padding: 12px 14px;
  background: rgba(4, 20, 40, .7); color: var(--ink);
  border: 1px solid var(--line-soft); outline: none;
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  resize: vertical; transition: border-color .2s;
}
textarea:focus, .ipt:focus { border-color: var(--line); }
.ipt { font-size: 14px; }

.result {
  min-height: 200px; max-height: 420px; overflow: auto;
  padding: 12px 14px; margin: 0;
  background: rgba(4, 20, 40, .7); border: 1px solid var(--line-soft);
  font-family: var(--mono); font-size: 13px; line-height: 1.7;
  white-space: pre-wrap; word-break: break-all;
}
.result.small { min-height: 130px; }

.stamp {
  margin-top: 10px; font-size: 12px; letter-spacing: 1px;
  color: var(--ink2); font-family: var(--mono);
}
.stamp.ok { color: var(--ok); }
.stamp.bad { color: var(--bad); }

/* ── 按钮 ── */
.acts { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.acts.row { margin-top: 0; margin-bottom: 14px; }
.acts output { color: var(--hi); font-family: var(--mono); font-weight: 700; }
input[type="range"] { accent-color: var(--hi); width: 150px; }

.btn {
  padding: 9px 22px; cursor: pointer;
  background: none; border: 1px solid var(--line);
  color: var(--ink); font-family: inherit; font-size: 13px; letter-spacing: 2px;
  transition: all .18s;
}
.btn:hover { background: var(--hi); color: #082847; border-color: var(--hi); }
.btn:active { transform: translateY(1px); }
.btn.ghost { border-style: dashed; color: var(--ink2); }
.btn.ghost:hover { background: rgba(178, 217, 255, .1); color: var(--ink); }

/* ── 哈希 ── */
.hash-list { list-style: none; display: grid; gap: 10px; margin-top: 14px; }
.hash-list li {
  display: grid; grid-template-columns: 86px 1fr auto; gap: 12px; align-items: center;
  border: 1px solid var(--line-soft); padding: 10px 14px;
  background: rgba(8, 30, 55, .5);
}
.hash-list span { font-size: 11px; letter-spacing: 2px; color: var(--hi); font-family: var(--mono); }
.hash-list code {
  font-family: var(--mono); font-size: 12px; color: var(--ink2);
  word-break: break-all;
}
.mini {
  background: none; border: 1px dashed var(--line); color: var(--ink2);
  padding: 4px 12px; cursor: pointer; font-size: 11px; font-family: inherit;
}
.mini:hover { color: var(--hi); border-color: var(--hi); }

/* ── UUID ── */
.uuid-list {
  list-style: none; counter-reset: u; display: grid; gap: 8px;
  max-height: 460px; overflow: auto;
}
.uuid-list li {
  counter-increment: u;
  display: grid; grid-template-columns: 44px 1fr; align-items: center;
  border: 1px solid var(--line-soft); padding: 10px 14px;
  font-family: var(--mono); font-size: 13.5px; letter-spacing: 1px;
  animation: draw .3s ease both;
  cursor: pointer; transition: border-color .18s;
}
.uuid-list li:hover { border-color: var(--hi); }
.uuid-list li::before {
  content: counter(u, decimal-leading-zero);
  color: var(--ink2); font-size: 11px;
}

/* ── 时间戳 ── */
.stamp-live {
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
  border: 1px solid var(--line); padding: 14px 18px; margin-bottom: 16px;
  background: rgba(8, 30, 55, .5);
}
.stamp-live b { font-family: var(--mono); font-size: 26px; color: var(--hi); }
.stamp-live span { font-family: var(--mono); font-size: 13px; color: var(--ink2); }
.row { display: flex; gap: 10px; }
.row .slash { align-self: center; font-family: var(--mono); font-size: 20px; color: var(--hi); }
.row .flags { width: 70px; text-align: center; }
.row .mono { flex: 1; }

/* ── 正则 ── */
.re-stats {
  margin: 12px 0; font-family: var(--mono); font-size: 12.5px;
  color: var(--hi); letter-spacing: 1px;
}
.re-canvas {
  border: 1px solid var(--line-soft); padding: 14px 16px;
  background: rgba(4, 20, 40, .7);
  font-size: 14px; line-height: 2.1; min-height: 90px;
  word-break: break-all;
}
mark {
  background: rgba(255, 229, 143, .32);
  color: var(--hi);
  border-bottom: 2px solid var(--hi);
  border-radius: 2px; padding: 0 1px;
}
.re-err { color: var(--bad); font-family: var(--mono); font-size: 13px; }

/* ── 响应式 ── */
@media (max-width: 820px) {
  .titleblock { grid-template-columns: 1fr; gap: 10px; }
  .tb-cells { border-top: 1px solid var(--line); }
  .tb-cells > div:first-child { border-left: none; }
  .grid2 { grid-template-columns: 1fr; }
  .index { flex-direction: column; }
  .tab { justify-content: flex-start; border-bottom: 1px solid var(--line-soft); }
}