/* =========================================================================
   RA8P1 网页版上位机 · 深色控制台
   在原有配色基础上精修：间距节奏、字体层级、关节通道仪器细节、安全权重
   ========================================================================= */

:root {
  --bg: #18191f;
  --panel: #22232b;
  --panel2: #2a2b35;
  --panel3: #32343f;
  --log: #0c0d12;
  --text: #e8e9ee;
  --muted: #9b9eaa;
  --faint: #6b6f7c;
  --border: #4c4e5b;
  --border-soft: #383b47;
  --disabled: #404149;
  --green: #3ec26d;
  --blue: #3e70be;
  --blue-lit: #5b8fd6;
  --orange: #ebaa2a;
  --red: #cd3939;
  --red-deep: #a52c2c;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --mono: "Cascadia Mono", Consolas, "SF Mono", Menlo, "Courier New", monospace;

  --r-sm: 5px;
  --r: 7px;
  --r-lg: 10px;
}

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

body {
  background:
    radial-gradient(1200px 500px at 50% -14%, rgba(62,112,190,.06), transparent 68%),
    var(--bg);
  color: var(--text);
  font: 400 13px/1.55 var(--sans);
  padding: 16px;
  -webkit-font-smoothing: antialiased;
}

code, kbd, .num, .log, .endpoint, .samples, .status-line {
  font-family: var(--mono);
}

code {
  color: var(--orange);
  background: rgba(235,170,42,.1);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: .92em;
}

kbd {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 5px;
  border-radius: 3px;
  background: rgba(0,0,0,.3);
  border: 1px solid rgba(255,255,255,.16);
  font-size: 10px;
  line-height: 15px;
  vertical-align: middle;
  opacity: .8;
}

.app { max-width: 1420px; margin: 0 auto; display: grid; gap: 12px; }

/* ---------------- 顶栏 ---------------- */

.topbar {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 18px;
}
.brand { flex: 1 1 300px; min-width: 240px; }
.brand h1 {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.25;
}
.brand .sub { color: var(--muted); font-size: 11.5px; margin-top: 3px; }

/* ---------------- 分段开关 ---------------- */

.modes {
  display: inline-flex; gap: 2px; padding: 3px;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-radius: var(--r);
}
.seg {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font: 500 12.5px/1 var(--sans);
  padding: 8px 14px;
  border-radius: var(--r-sm);
  white-space: nowrap;
  transition: background .14s, color .14s;
}
.seg:hover { color: var(--text); }
.seg.is-on {
  background: var(--blue);
  color: #fff;
  font-weight: 600;
}

/* ---------------- 连接指示灯 ---------------- */

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  font-size: 12px; font-weight: 500;
  background: var(--bg);
  color: var(--muted);
  border: 1px solid var(--border);
}
.badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--faint);
  transition: background .18s, box-shadow .18s;
}
.badge.ok  { color: var(--green); border-color: rgba(62,194,109,.38); background: rgba(62,194,109,.1); }
.badge.ok  .dot { background: var(--green); box-shadow: 0 0 9px rgba(62,194,109,.7); }
.badge.err { color: var(--red); border-color: rgba(205,57,57,.38); background: rgba(205,57,57,.1); }
.badge.err .dot { background: var(--red); box-shadow: 0 0 9px rgba(205,57,57,.7); }
.badge.warn{ color: var(--orange); border-color: rgba(235,170,42,.38); background: rgba(235,170,42,.1); }
.badge.warn .dot { background: var(--orange); box-shadow: 0 0 9px rgba(235,170,42,.7); }

/* ---------------- 连接条 ---------------- */

.connect {
  display: grid; gap: 11px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 13px 16px;
}
.connect-head {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.conn-fields {
  display: flex; gap: 11px; align-items: flex-end; flex-wrap: wrap;
}
.conn-actions { display: flex; gap: 8px; }

.field { display: flex; flex-direction: column; gap: 5px; }
.field.grow { flex: 1 1 260px; min-width: 200px; }
.field > span {
  font-size: 10.5px; font-weight: 600;
  letter-spacing: .07em;
  color: var(--muted);
}
.field input {
  background: var(--log);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 11px;
  border-radius: var(--r-sm);
  font: 400 13px/1 var(--mono);
  outline: none;
  width: 100%;
}
.field input:focus { border-color: var(--blue-lit); }
.field input[readonly] { color: var(--muted); cursor: default; }
.field input[readonly]:focus { border-color: var(--border); }

.notice {
  background: rgba(235,170,42,.1);
  border: 1px solid rgba(235,170,42,.38);
  color: var(--orange);
  border-radius: var(--r);
  padding: 11px 15px;
  font-size: 12.5px;
  line-height: 1.6;
}
.notice.err {
  background: rgba(205,57,57,.1);
  border-color: rgba(205,57,57,.38);
  color: var(--red);
}

/* ---------------- 动作条（STOP 权重最高） ---------------- */

.toolbar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 12px 14px;
}
.toolbar .spacer { flex: 1; }
.endpoint {
  color: var(--faint);
  font-size: 11.5px;
  max-width: 340px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ---------------- 按钮 ---------------- */

.btn {
  background: var(--blue);
  color: #fff;
  border: 1px solid rgba(255,255,255,.08);
  padding: 9px 16px;
  border-radius: var(--r-sm);
  font: 500 12.5px/1 var(--sans);
  cursor: pointer;
  white-space: nowrap;
  transition: background .13s, border-color .13s, opacity .13s, transform .05s;
}
.btn:hover:not(:disabled) { background: var(--blue-lit); border-color: rgba(255,255,255,.16); }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled {
  background: var(--disabled);
  color: var(--faint);
  border-color: var(--border);
  cursor: not-allowed;
}

.btn.danger {
  background: var(--red-deep);
  border-color: rgba(205,57,57,.5);
  font-weight: 600;
}
.btn.danger:hover:not(:disabled) {
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 2px 12px rgba(205,57,57,.3);
}

/* STOP：安全控件，全页权重最高 */
.btn.stop {
  padding: 13px 26px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
  border-radius: var(--r);
  box-shadow: 0 2px 10px rgba(205,57,57,.22), inset 0 1px 0 rgba(255,255,255,.1);
}
.btn.stop kbd { opacity: .6; margin-left: 9px; }

.btn.green  { background: var(--green); color: #08160d; border-color: transparent; font-weight: 600; }
.btn.green:hover:not(:disabled)  { background: #4fd47d; border-color: transparent; }
.btn.orange { background: var(--orange); color: #241a02; border-color: transparent; font-weight: 600; }
.btn.orange:hover:not(:disabled) { background: #f5b93f; border-color: transparent; }

.btn.primary { background: var(--blue); }
.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn.ghost:hover:not(:disabled) { background: var(--panel2); border-color: var(--border); }
.btn.ghost:disabled { background: transparent; }

.btn.big  { padding: 14px 22px; font-size: 14px; flex: 1; }
.btn.tiny {
  width: 48px; height: 38px;
  padding: 0;
  font: 600 16px/1 var(--mono);
  background: var(--panel3);
}
.btn.tiny:hover:not(:disabled) { background: var(--border); }
.btn.hold.is-held {
  filter: brightness(1.22);
  border-color: rgba(255,255,255,.26);
}

/* 焦点环：键盘可达 */
:focus-visible {
  outline: 2px solid var(--blue-lit);
  outline-offset: 2px;
}
.btn:focus-visible, .seg:focus-visible { outline-offset: 1px; }

/* ---------------- 面板 ---------------- */

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 16px;
}
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  margin-bottom: 11px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--border-soft);
}
.panel-head h2 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .09em;
  color: var(--text);
}
.hint { font-size: 11.5px; color: var(--faint); }
.note { font-size: 11.5px; color: var(--faint); margin-top: 10px; line-height: 1.55; }
.info-body { display: grid; gap: 6px; }
.info-line { font-size: 12.5px; line-height: 1.6; }
.row { display: flex; gap: 8px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.dim { color: var(--faint); }
.grow { flex: 1; }

/* ---------------- 主栅格 ---------------- */

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: 12px;
  align-items: start;
}
.col { display: grid; gap: 12px; min-width: 0; }

@media (max-width: 1100px) {
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { padding: 10px; }
  .toolbar { padding: 10px; }
  .toolbar .btn { flex: 1 1 auto; }
  .topbar { gap: 12px; }
  .modes { width: 100%; }
  .seg { flex: 1; }
  .badge { width: 100%; justify-content: center; }
  .conn-fields .field.grow { flex-basis: 100%; }
  .conn-actions { width: 100%; }
  .conn-actions .btn { flex: 1; }
}

/* ---------------- 步长 / 绝对目标 ---------------- */

.num {
  background: var(--log);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: var(--r-sm);
  font: 400 13px/1 var(--mono);
  font-variant-numeric: tabular-nums;
  outline: none;
  width: 96px;
}
.num.wide { width: 152px; }
.num:focus { border-color: var(--orange); }

.step-now { color: var(--muted); font-size: 12px; margin-left: 5px; }
.step-now b {
  color: var(--orange);
  font: 600 14px/1 var(--mono);
  font-variant-numeric: tabular-nums;
  margin: 0 1px;
}

/* ---------------- 关节通道（签名元素） ---------------- */

.joints { display: grid; gap: 8px; }

.joint {
  display: grid;
  grid-template-columns: 42px minmax(110px, 1fr) 106px 62px 110px;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  background: var(--panel2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  cursor: pointer;
  transition: border-color .14s, background .14s;
}
.joint:hover { border-color: var(--border); background: var(--panel3); }
.joint.is-sel {
  border-color: var(--orange);
  background: rgba(235,170,42,.07);
  box-shadow: inset 3px 0 0 var(--orange);
}

.jname {
  font: 600 13px/1 var(--mono);
  letter-spacing: .06em;
  color: var(--text);
}
.joint.is-sel .jname { color: var(--orange); }

/* 精密刻度导轨 */
.track {
  position: relative;
  height: 22px;
  border-radius: 3px;
  background:
    repeating-linear-gradient(to right, rgba(255,255,255,.045) 0 1px, transparent 1px 10%),
    linear-gradient(180deg, var(--log), #14161c);
  border: 1px solid var(--border-soft);
}
.track .fill {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(62,112,190,.42), rgba(62,112,190,.16));
  border-right: 1px solid rgba(91,143,214,.6);
  border-radius: 2px 0 0 2px;
}
.track .knob {
  position: absolute; top: 0; bottom: 0;
  width: 3px;
  border-radius: 1px;
  background: var(--orange);
  transform: translateX(-50%);
  box-shadow: 0 0 8px rgba(235,170,42,.8);
}
.track .knob::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 11px; height: 11px;
  margin: -5.5px 0 0 -5.5px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 8px rgba(235,170,42,.85);
}

.jval {
  display: flex; flex-direction: column;
  gap: 2px;
}
.jval b {
  font: 600 13px/1.2 var(--mono);
  font-variant-numeric: tabular-nums;
}
.jval span {
  font: 400 10.5px/1.2 var(--mono);
  color: var(--faint);
}

.jhomed {
  font-size: 10px; font-weight: 600;
  letter-spacing: .06em;
  text-align: center;
  padding: 5px 0;
  border-radius: 3px;
}
.jhomed.ok { color: var(--green); background: rgba(62,194,109,.11); }
.jhomed.no { color: var(--red);   background: rgba(205,57,57,.11); }

.jbtns { display: flex; gap: 9px; justify-content: flex-end; }

/* ---------------- 订单 ---------------- */

.orders .row { gap: 10px; }
.order-line { color: var(--muted); font-size: 11.5px; }

/* ---------------- 视觉 ---------------- */

.samples {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px 12px;
  background: var(--log);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  min-height: 190px;
  max-height: 262px;
  overflow-y: auto;
  font: 400 11.5px/1.5 var(--mono);
  font-variant-numeric: tabular-nums;
}
.sample { white-space: pre; overflow: hidden; text-overflow: ellipsis; }
.sample.hi  { color: var(--green); }
.sample.mid { color: var(--orange); }
.sample.lo  { color: var(--red); }
.samples .empty {
  grid-column: 1 / -1;
  color: var(--faint);
  text-align: center;
  padding: 32px 0;
  font: 400 12px/1.5 var(--sans);
}

.vision-result {
  margin-top: 11px;
  padding-top: 11px;
  border-top: 1px solid var(--border-soft);
  display: flex; flex-direction: column; gap: 4px;
  font-size: 12.5px;
}
#visionResult { font-weight: 600; }

/* ---------------- 日志 ---------------- */

.log-panel { display: flex; flex-direction: column; }
.log {
  background: var(--log);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 10px 12px;
  font: 400 11.8px/1.55 var(--mono);
  overflow-y: auto;
  min-height: 200px;
  max-height: 46vh;
}
.log-entry { white-space: pre-wrap; word-break: break-all; }
.log-entry.tx  { color: var(--blue-lit); }
.log-entry.rx  { color: var(--muted); }
.log-entry.err { color: var(--red); }

/* ---------------- 状态栏 ---------------- */

.statusbar {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 12px 16px;
  display: grid; gap: 7px;
}
.status-line {
  font: 500 12.5px/1.5 var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--green);
}
.status-line.unknown { color: var(--orange); }

/* ---------------- 滚动条 ---------------- */

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover { background: var(--faint); }

/* ---------------- 动效克制 ---------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}