/* ============================================================
   耗量计算器 · Cutting Console
   黑白极简风格 · 无动画 · 纯静态 · Cloudflare Pages 就绪
   ============================================================ */

:root {
  --bg: #000000;
  --bg-2: #0a0a0a;
  --panel: #0d0d0d;
  --panel-2: #141414;
  --line: #333333;
  --line-soft: rgba(255, 255, 255, 0.14);
  --accent: #ffffff;
  --accent-dim: #777777;
  --text: #f2f2f2;
  --text-dim: #a0a0a0;
  --text-faint: #666666;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono",
    Menlo, Consolas, monospace;
  --font-ui: "PingFang SC", "Microsoft YaHei", "Noto Sans SC",
    system-ui, -apple-system, sans-serif;
  --radius: 6px;
}

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

html {
  scrollbar-color: #555555 var(--bg-2);
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 120% 90% at 50% 0%, #000 55%, transparent 100%);
}

/* ---- 顶栏 ---- */
.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px clamp(16px, 4vw, 40px);
  border-bottom: 1px solid var(--line-soft);
  background: #050505;
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-mark {
  color: var(--accent);
  font-size: 26px;
  line-height: 1;
}

h1 {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.2;
}

.brand-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.26em;
  color: var(--text-dim);
  margin-top: 3px;
}

.sys {
  display: flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.ver {
  border: 1px solid var(--line);
  padding: 2px 7px;
  border-radius: 3px;
  color: var(--text-faint);
}

/* ---- 布局 ---- */
main {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin: 0 auto;
  padding: 18px clamp(16px, 4vw, 40px) 56px;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* 材料规格：紧凑横条 */
.mat-bar .card-head {
  margin-bottom: 10px;
}

.mat-fields {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 18px;
}

.mat-fields .seg,
.mat-fields .field {
  margin: 0;
}

.mat-fields .input-wrap {
  width: 150px;
}

.mat-fields .input-wrap input {
  font-size: 14px;
  padding: 7px 10px;
}

/* ---- 卡片 ---- */
.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 16px;
}

.frame::before,
.frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border-color: rgba(255, 255, 255, 0.4);
  border-style: solid;
  pointer-events: none;
}

.frame::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.frame::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 2px 2px 0;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text);
  padding-bottom: 12px;
  margin-bottom: 15px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.22);
}

.head-dot {
  width: 7px;
  height: 7px;
  background: var(--accent);
  transform: rotate(45deg);
  flex: none;
}

.head-tag {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}

/* ---- 表单控件 ---- */
.seg {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 14px;
}

.seg input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.seg label {
  padding: 7px 13px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  cursor: pointer;
}

.seg label:hover {
  color: var(--text);
  background: var(--panel-2);
}

.seg input:checked + label {
  background: var(--accent);
  color: #000000;
}

.field {
  margin-bottom: 13px;
}

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.input-wrap {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  background: #050505;
  border-radius: 4px;
}

.input-wrap:focus-within {
  border-color: var(--accent);
}

.input-wrap input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 16px;
  font-variant-numeric: tabular-nums;
  padding: 9px 10px;
}

.input-wrap .suffix {
  flex: none;
  padding: 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.note-inline {
  font-size: 11px;
  color: var(--text-faint);
  margin-top: 12px;
}

/* ---- 按钮 ---- */
.btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--accent-dim);
  border-radius: 4px;
  padding: 8px 14px;
  cursor: pointer;
}

.btn:hover {
  background: var(--accent);
  color: #000000;
}

.btn:active {
  transform: translateY(1px);
}

.btn.primary {
  background: var(--accent);
  color: #000000;
  border-color: var(--accent);
}

.btn.primary:hover {
  background: #dddddd;
  border-color: #dddddd;
}

.btn.ghost {
  color: var(--text-dim);
  border-color: var(--line);
}

.btn.ghost:hover {
  color: #000000;
  background: var(--accent);
}

.btn.danger {
  color: var(--text-dim);
  border-color: var(--line);
}

.btn.danger:hover {
  color: #000000;
  background: var(--accent);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn.is-on {
  background: var(--accent);
  color: #000000;
  border-color: var(--accent);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

/* ---- 表格 ---- */
.table-wrap {
  overflow: auto;
  max-height: 540px;
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  background: #050505;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  min-width: 1180px;
}

thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #111111;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-align: right;
  padding: 9px 10px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

thead th:first-child,
tbody td:first-child {
  text-align: center;
}

.th-unit {
  color: var(--text-faint);
  font-size: 9px;
}

tbody td {
  padding: 6px 10px;
  border-bottom: 1px solid #1c1c1c;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--text);
  white-space: nowrap;
}

tbody tr:hover {
  background: #111111;
}

tbody tr.is-selected {
  background: #1c1c1c;
  box-shadow: inset 3px 0 0 var(--accent);
}

/* 半刀默认隐藏，点击按钮后显示 */
.table-card.half-off .col-half {
  display: none;
}

.table-card.half-off .chip-half {
  display: none;
}

.table-card.half-off table {
  min-width: 760px;
}

tbody tr.row-invalid td:not(:first-child) {
  color: var(--text-faint);
}

.idx {
  color: var(--text-faint);
}

td input {
  width: 100%;
  min-width: 72px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 3px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  text-align: right;
  padding: 4px 6px;
  outline: none;
}

td input:hover {
  border-color: #444444;
}

td input:focus {
  border-color: var(--accent);
  background: #000000;
}

td .del {
  color: var(--text-dim);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 4px 7px;
  opacity: 0.55;
}

td .del:hover {
  opacity: 1;
  color: var(--text);
}

/* ---- 汇总 ---- */
.summary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.schip {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  border: 1px solid var(--line);
  background: #0a0a0a;
  padding: 8px 12px;
  border-radius: 4px;
}

.schip b {
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}

/* ---- 页脚 ---- */
footer {
  position: relative;
  z-index: 1;
  max-width: 1440px;
  margin: 0 auto;
  padding: 20px clamp(16px, 4vw, 40px) 40px;
  border-top: 1px solid #1c1c1c;
  color: var(--text-faint);
  font-size: 11px;
  line-height: 2;
}

footer .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

/* ---- Toast ---- */
#toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text);
  background: #0a0a0a;
  border: 1px solid var(--accent-dim);
  border-radius: 4px;
  padding: 10px 16px;
  opacity: 0;
  pointer-events: none;
}

#toast.show {
  opacity: 1;
}

/* ---- 焦点 ---- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- 响应式 ---- */
@media (max-width: 1080px) {
  .mat-fields .input-wrap {
    width: 130px;
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .mat-fields {
    gap: 12px;
  }

  .mat-fields .seg {
    width: 100%;
  }

  .mat-fields .seg label {
    flex: 1;
    text-align: center;
  }

  .mat-fields .input-wrap {
    width: 100%;
  }
}