/* ============================================================
 * style.css · QJIC
 * 纯本地样式表：无 @import、无外链字体（字体用系统栈）、无图片。
 * 断点：默认移动优先；≥720px 展开为多列。
 * ============================================================ */

:root {
  --bg: #f3f5f9;
  --card: #ffffff;
  --ink: #14181f;
  --muted: #4a5568;
  --line: #d5dbe6;
  --primary: #17417c;
  --primary-ink: #ffffff;
  --danger: #a1121b;
  --ok: #14653a;
  --ok-bg: #e6f4ec;
  --warn: #8a4b00;
  --warn-bg: #fdf3e2;
  --chip-bg: #e9eefb;
  --chip-ink: #1b3a72;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 6px 18px rgba(16, 24, 40, .05);
  --r: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a;
    --card: #171d27;
    --ink: #eef2f8;
    --muted: #b9c3d4;
    --line: #2c3543;
    --primary: #8fb4ff;
    --primary-ink: #0c1220;
    --danger: #ff9aa2;
    --ok: #7fd6a1;
    --ok-bg: #14301f;
    --warn: #ffc98a;
    --warn-bg: #35260f;
    --chip-bg: #1e2836;
    --chip-ink: #cfe0ff;
    --shadow: 0 1px 2px rgba(0, 0, 0, .5);
  }
}

* { box-sizing: border-box; }

/* 长荷兰语／西班牙语合成词防溢出：overflow-wrap:anywhere 会同时收紧 min-content 宽度，
   否则在 grid/flex 子项里（min-width:auto）仍会把容器撑宽 */
h1, h2, h3, p, li, td, th, span, strong, a, output, label, button,
.list-title, .card-title, .step-num, .step-amt, .fld-k, .ln-k, .muted, .brand-sub {
  overflow-wrap: anywhere;
}
.list-card, .list-main, .card, .card-head, .grid2 > *, .ladder > *, .step, .fld, .ln, .doc-sum > * {
  min-width: 0;
}

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

img, svg { max-width: 100%; height: auto; }

h1, h2, h3 { line-height: 1.25; }

a { color: var(--primary); }

.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 14px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap;
}

.noscript-block { padding: 24px 14px; }

/* ---------- skip link ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 12px 16px;
  border-radius: 0 0 var(--r) 0;
  z-index: 50;
  text-decoration: none;
}
.skip:focus { left: 0; }

/* ---------- topbar ---------- */
.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-in {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: inherit;
  text-decoration: none;
}
.brand-mark {
  flex: 0 0 auto;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--primary);
  color: var(--primary-ink);
  display: grid;
  place-items: center;
  font-weight: 700;
}
.brand-sub { color: var(--muted); font-size: 12.5px; }
.topbar-side { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.lang-label { color: var(--muted); font-size: 13px; }
.langsw { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.langbtn {
  min-height: 44px;
  min-width: 48px;
  padding: 0 12px;
  border: 0;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}
.langbtn.is-on { background: var(--primary); color: var(--primary-ink); }

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0 14px 12px;
}
.navbtn {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}
.navbtn.is-on { background: var(--chip-bg); color: var(--chip-ink); border-color: var(--chip-ink); font-weight: 700; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); font-weight: 600; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-ghost { background: transparent; }
.btn-sm { min-height: 44px; padding: 0 10px; }
.btn.is-on { background: var(--chip-bg); color: var(--chip-ink); }

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* ---------- main ---------- */
main { padding-bottom: 40px; }
.page-title { font-size: 22px; margin: 18px 0 6px; }
.page-lead { color: var(--muted); margin: 0 0 14px; max-width: 70ch; }
.sub-title { font-size: 16px; margin: 18px 0 8px; }
.small { font-size: 12.5px; }
.muted { color: var(--muted); }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }

.banner {
  background: var(--warn-bg);
  color: var(--warn);
  border: 1px solid currentColor;
  border-radius: var(--r);
  padding: 10px 12px;
  margin: 12px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

/* ---------- stats ---------- */
.stats { display: grid; gap: 10px; grid-template-columns: 1fr; margin: 12px 0 16px; }
.stat {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 10px 12px;
  box-shadow: var(--shadow);
}
.stat-k { display: block; color: var(--muted); font-size: 12.5px; }
.stat-v { font-size: 18px; }

/* ---------- cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 14px;
  margin: 0 0 12px;
  box-shadow: var(--shadow);
}
.card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.card-title { font-size: 17px; }
.card-acts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }

.list-card { display: grid; grid-template-columns: 1fr; gap: 6px; }
.list-title { font-weight: 700; }
.list-amt { font-weight: 700; font-size: 17px; }
.list-side { display: flex; flex-wrap: wrap; gap: 6px; }

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--chip-ink);
  font-size: 12.5px;
  font-weight: 600;
}
.chip-accepted, .chip-paid, .chip-done { background: var(--ok-bg); color: var(--ok); }
.chip-rejected { background: var(--warn-bg); color: var(--warn); }

/* ---------- chain ladder ---------- */
.ladder { list-style: none; display: flex; flex-direction: column; gap: 8px; padding: 0; margin: 12px 0; }
.step {
  border: 1px dashed var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.step.filled { border-style: solid; }
.step-name { color: var(--muted); font-size: 12.5px; }
.step-num { font-weight: 700; }
.step-amt { font-weight: 600; }

.flag { margin: 6px 0 0; font-size: 13.5px; font-weight: 600; }
.flag-ok { color: var(--ok); }
.flag-warn { color: var(--warn); }

/* ---------- forms ---------- */
.grid2 { display: grid; grid-template-columns: 1fr; gap: 10px; }
.fld { display: flex; flex-direction: column; gap: 4px; }
.fld-k { color: var(--muted); font-size: 12.5px; }
.req { color: var(--danger); }

input, select, textarea {
  font: inherit;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  min-height: 44px;
  width: 100%;
}
textarea { min-height: 64px; resize: vertical; }

.line { display: grid; grid-template-columns: 1fr; gap: 8px; border-bottom: 1px dashed var(--line); padding: 10px 0; }
.line:last-child { border-bottom: 0; }
.ln { display: flex; flex-direction: column; gap: 4px; }
.ln-k { color: var(--muted); font-size: 12px; }
.ln-total { min-height: 44px; display: flex; align-items: center; font-weight: 700; }
.ln-del { justify-content: flex-end; }
.line-add { margin: 10px 0; }

.totals { border-top: 1px solid var(--line); padding-top: 10px; }
.tot-grid { display: grid; grid-template-columns: 1fr; gap: 4px; }
.tot-grid > div { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; }
.tot-gross { border-top: 1px solid var(--line); font-size: 18px; padding-top: 6px; }
.vat-spec { list-style: none; padding: 6px 0 0; margin: 0; color: var(--muted); font-size: 12.5px; }
.vat-spec li { display: flex; justify-content: space-between; gap: 12px; }

.form-acts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.form-card { scroll-margin-top: 80px; }

/* ---------- empty ---------- */
.empty {
  border: 1px dashed var(--line);
  border-radius: var(--r);
  padding: 20px 14px;
  text-align: center;
  background: var(--card);
}
.empty h2 { font-size: 17px; margin: 0 0 6px; }
.empty p { color: var(--muted); margin: 0 auto 12px; max-width: 52ch; }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 40;
  background: var(--primary);
  color: var(--primary-ink);
  border-radius: var(--r);
  padding: 12px 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow);
}
.toast .btn { margin-left: auto; }
.toast-warn { background: var(--warn); color: var(--card); }
@media (prefers-color-scheme: dark) { .toast-warn { color: #0c1220; } }

/* ---------- document (print sheet) ---------- */
.doc-wrap { margin: 12px 0; }
.doc {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 18px;
  max-width: 900px;
}
.doc-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; border-bottom: 2px solid var(--line); padding-bottom: 10px; }
.doc-co { font-size: 13px; color: var(--muted); }
.doc-co strong { color: var(--ink); font-size: 16px; }
.doc-title { font-size: 20px; margin: 0; }
.doc-parties { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 14px 0; }
.doc-k { color: var(--muted); font-size: 12.5px; }
.doc-meta { list-style: none; margin: 0; padding: 0; font-size: 13.5px; }
.doc-meta li { display: flex; justify-content: space-between; gap: 12px; padding: 2px 0; }
.doc-table { width: 100%; border-collapse: collapse; table-layout: fixed; font-size: 13.5px; }
.doc-table th, .doc-table td { border-bottom: 1px solid var(--line); padding: 7px 6px; text-align: left; overflow-wrap: anywhere; }
.doc-table th.num, .doc-table td.num { text-align: right; }
.doc-table thead th { color: var(--muted); font-size: 12px; font-weight: 600; }
.doc-sum { display: grid; grid-template-columns: 1fr; gap: 10px; margin-top: 14px; }
.doc-table.small { font-size: 12.5px; }
.doc-tot { display: flex; flex-direction: column; gap: 4px; max-width: 320px; }
.doc-tot > div { display: flex; justify-content: space-between; gap: 12px; }
.doc-gross { border-top: 1px solid var(--line); padding-top: 6px; font-size: 18px; }
.doc-notes, .doc-pay { margin: 14px 0 0; font-size: 13.5px; }
.doc-thanks { margin: 18px 0 0; }
.doc-sign { margin: 24px 0 0; border-top: 1px solid var(--line); padding-top: 8px; color: var(--muted); font-size: 12.5px; max-width: 320px; }
.doc-foot { margin: 14px 0 0; color: var(--muted); font-size: 11.5px; }

/* ---------- settings danger ---------- */
.danger-wrap { margin-top: 14px; }
.danger-zone { border: 1px solid var(--danger); border-radius: var(--r); padding: 12px; color: var(--danger); }
.danger-zone .btn { margin-top: 8px; }
.grid2 { gap: 10px; }

/* ---------- footer ---------- */
.foot { padding: 18px 14px 30px; }

/* ---------- ≥720px ---------- */
@media (min-width: 720px) {
  .wrap { padding: 0 20px; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .grid2 { grid-template-columns: 1fr 1fr; }
  .list-card { grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; }
  .list-side { justify-content: flex-end; }
  .list-card .card-acts { grid-column: 1 / -1; }
  .ladder { flex-direction: row; }
  .step { flex: 1 1 0; }
  .line {
    grid-template-columns: minmax(0, 3fr) 5.5rem 5.5rem 6.5rem 6.5rem 7.5rem 3rem;
    align-items: end;
  }
  .tot-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); text-align: right; }
  .tot-grid > div { flex-direction: column; align-items: flex-end; gap: 0; }
  .doc { padding: 32px; }
  .doc-sum { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: end; }
  .toast { left: auto; right: 20px; bottom: 20px; max-width: 520px; }
}

@media (min-width: 1000px) {
  .doc { padding: 40px; }
}

/* ---------- ≤640px: 文档表格改为堆叠，避免横向滚动 ---------- */
@media (max-width: 640px) {
  .doc-table thead { position: absolute; left: -9999px; }
  .doc-table, .doc-table tbody, .doc-table tr, .doc-table td { display: block; width: 100%; }
  .doc-table tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
  .doc-table td { border: 0; padding: 2px 0; display: flex; justify-content: space-between; gap: 12px; text-align: right; }
  .doc-table td::before { content: attr(data-th); color: var(--muted); font-weight: 600; text-align: left; }
}

/* ---------- print ---------- */
@media print {
  :root {
    --bg: #ffffff; --card: #ffffff; --ink: #000000; --muted: #333333; --line: #999999;
    --primary: #000000; --primary-ink: #ffffff; --shadow: none;
  }
  body { background: #fff; color: #000; font-size: 12pt; }
  .no-print, .topbar, .nav, .foot, .toast, .banner, .skip { display: none !important; }
  main { padding: 0; }
  .wrap { max-width: none; padding: 0; }
  .doc {
    border: 0;
    border-radius: 0;
    padding: 0;
    max-width: none;
    box-shadow: none;
  }
  .doc-table, .doc-table tbody, .doc-table tr, .doc-table td, .doc-table th { display: revert; }
  .doc-table thead { position: static; }
  .doc-table tr { break-inside: avoid; page-break-inside: avoid; }
  .doc-table thead { display: table-header-group; }
  .doc-title { font-size: 16pt; }
  a { color: #000; text-decoration: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}