/* ============================================================
   设计 Token — 专业绿（Professional Green）
   方法论参考：UI/UX Pro Max（SVG 图标、hover 反馈、暗黑模式、
   响应式、动效克制、设计 token 化）
   ============================================================ */
:root {
  /* 品牌色 — 深松绿 / 专业绿 */
  --primary: #1f7a54;
  --primary-d: #155c3e;
  --primary-l: #e7f3ec;
  --primary-ll: #f2f9f5;

  --bg: #f4f7f5;
  --bg-grad: radial-gradient(1200px 600px at 100% -10%, #e3f1ea 0%, transparent 60%),
             radial-gradient(900px 500px at -10% 0%, #eaf3ee 0%, transparent 55%);
  --card: #ffffff;
  --text: #16241d;
  --muted: #6b7c73;
  --border: #e2e9e4;
  --danger: #c0432f;
  --danger-l: #fbeae6;
  --warn: #b8791a;
  --warn-l: #fbf2e2;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow: 0 1px 2px rgba(16,36,29,.04), 0 8px 24px rgba(16,36,29,.07);
  --shadow-sm: 0 1px 2px rgba(16,36,29,.04);
  --shadow-hover: 0 2px 4px rgba(16,36,29,.06), 0 12px 32px rgba(16,36,29,.12);
  --ring: 0 0 0 3px rgba(31,122,84,.18);
  --primary-soft: #e7f3ec;
  --chip: #eef2f0;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
          "PingFang SC", "Microsoft YaHei", sans-serif;
}

/* 暗黑模式 */
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #34c98a;
    --primary-d: #2bb37a;
    --primary-l: #163025;
    --primary-ll: #122a1f;
    --bg: #0e1612;
    --bg-grad: radial-gradient(1200px 600px at 100% -10%, #143324 0%, transparent 60%),
               radial-gradient(900px 500px at -10% 0%, #102a20 0%, transparent 55%);
    --card: #15211b;
    --text: #e7efe9;
    --muted: #8aa093;
    --border: #25362d;
    --danger: #e8735f;
    --danger-l: #2e1a16;
    --warn: #e0a93f;
    --warn-l: #2c2410;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
    --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
    --shadow-hover: 0 2px 4px rgba(0,0,0,.35), 0 12px 32px rgba(0,0,0,.5);
    --ring: 0 0 0 3px rgba(52,201,138,.28);
    --primary-soft: #143524;
    --chip: #1d2b24;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  background-image: var(--bg-grad);
  background-attachment: fixed;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

/* ===================== 顶栏 ===================== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand {
  font-size: 19px; font-weight: 800; letter-spacing: -.02em;
  display: flex; align-items: center; gap: 10px; color: var(--text);
}
.brand svg { width: 26px; height: 26px; color: var(--primary); }
.actions { display: flex; gap: 10px; align-items: center; }

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px; font-weight: 600;
  transition: background .15s, border-color .15s, transform .08s, box-shadow .15s;
}
.btn:active { transform: translateY(1px); }
.btn:hover { border-color: var(--muted); box-shadow: var(--shadow); }
.btn svg { width: 16px; height: 16px; }
.btn.primary {
  background: var(--primary); color: #fff; border-color: var(--primary);
  box-shadow: 0 1px 2px rgba(16,36,29,.18);
}
.btn.primary:hover { background: var(--primary-d); border-color: var(--primary-d); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, var(--border)); }
.btn.danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ===================== 容器 / 筛选 ===================== */
.container { max-width: 1180px; margin: 0 auto; padding: 22px; }

.filters {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  background: var(--card);
  padding: 14px 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.filters input {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px; min-width: 180px;
  background: var(--card); color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
.filters input[type="date"] { min-width: 150px; }
.filters input:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }

.summary {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: stretch;
  margin-bottom: 16px;
}
.summary .stat {
  display: flex; flex-direction: column; gap: 4px;
  padding: 12px 18px; border-radius: 12px;
  background: var(--card); border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.summary .stat-label { color: var(--muted); font-size: 12px; }
.summary .stat > b { color: var(--text); font-size: 20px; font-weight: 700; }
.summary .stat.cats { flex: 1; min-width: 240px; }
.summary .cat-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.summary .cat-pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 999px; font-size: 12px;
  background: var(--primary-soft); color: var(--primary);
}
.summary .cat-pill > b { color: var(--primary); font-weight: 700; font-size: 12px; }
.summary .cat-pill.muted { background: var(--chip); color: var(--muted); }
.summary .cat-pill.muted > b { color: var(--muted); }

/* ===================== 表格 ===================== */
.table-wrap {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow-x: auto;
}
table { width: 100%; border-collapse: collapse; font-size: 14px; table-layout: auto; }
th, td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  vertical-align: middle;
}
th {
  background: color-mix(in srgb, var(--primary-l) 55%, var(--card));
  color: var(--muted); font-weight: 600; font-size: 12.5px;
  letter-spacing: .02em; text-transform: uppercase;
}
/* 长文本列允许换行/截断，避免撑宽 */
td.col-name, td.col-party, td.notes-cell { white-space: normal; }
td.col-name { max-width: 200px; }
td.col-party { max-width: 150px; }
td.notes-cell { max-width: 180px; overflow: hidden; text-overflow: ellipsis; }
/* 附件文件名截断 */
td.col-file { max-width: 160px; }
td.col-file a { display: inline-block; max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; vertical-align: middle; }
/* 操作列收紧 */
td.col-ops { width: 1%; white-space: nowrap; }
td.col-time { white-space: nowrap; color: var(--muted); font-size: 13px; }

tbody tr { transition: background .12s; }
tbody tr:hover { background: var(--primary-ll); }
tbody tr:last-child td { border-bottom: none; }

a.file-link { color: var(--primary); text-decoration: none; font-weight: 600; }
a.file-link:hover { text-decoration: underline; }

/* 操作列：图标按钮（紧凑） */
.row-actions { display: inline-flex; gap: 4px; }
.row-actions .btn { padding: 6px; font-size: 13px; line-height: 0; }
.row-actions .btn svg { width: 15px; height: 15px; }

/* 状态 / 方向 徽章 */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600; line-height: 1.6;
}
.badge.green { background: var(--primary-l); color: var(--primary-d); }
.badge.red   { background: var(--danger-l); color: var(--danger); }
.badge.amber { background: var(--warn-l); color: var(--warn); }
.badge.gray  { background: color-mix(in srgb, var(--muted) 14%, transparent); color: var(--muted); }

.empty { padding: 56px 24px; text-align: center; color: var(--muted); }
.empty svg { width: 46px; height: 46px; color: var(--border); margin-bottom: 10px; }
.empty .empty-title { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; }

/* ===================== 弹窗 ===================== */
.modal {
  position: fixed; inset: 0;
  background: rgba(12,22,17,.5);
  backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center;
  z-index: 50; padding: 16px;
  animation: fade .15s ease;
}
.modal[hidden] { display: none; }
@keyframes fade { from { opacity: 0 } to { opacity: 1 } }
.modal-card {
  background: var(--card);
  width: 100%; max-width: 640px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  max-height: 92vh; overflow-y: auto;
  animation: pop .18s ease;
}
@keyframes pop { from { transform: translateY(8px) scale(.99); opacity: .6 } to { transform: none; opacity: 1 } }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--card); z-index: 1;
}
.modal-head h3 { margin: 0; font-size: 17px; }
.icon-btn {
  border: none; background: transparent; cursor: pointer;
  color: var(--muted); width: 32px; height: 32px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
}
.icon-btn:hover { background: var(--primary-l); color: var(--primary-d); }
.icon-btn svg { width: 18px; height: 18px; }

form { padding: 20px 22px; display: flex; flex-direction: column; gap: 14px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); font-weight: 600; }
input, textarea, select {
  padding: 9px 12px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px; color: var(--text);
  background: var(--card);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }
.hint { font-size: 13px; color: var(--muted); }
#current-file {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px;
  padding: 10px 12px; margin-top: 8px; border-radius: var(--radius-sm);
  background: var(--primary-ll); border: 1px solid var(--border); font-size: 13px;
}
#current-file .cf-label { color: var(--muted); }
#current-file .cf-remove {
  display: inline-flex; align-items: center; gap: 6px; margin-left: auto;
  color: var(--danger); cursor: pointer; user-select: none;
}
#current-file .cf-remove input { accent-color: var(--danger); }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; }

/* ===================== Toast ===================== */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg);
  padding: 12px 20px; border-radius: 10px;
  font-size: 14px; z-index: 100; box-shadow: var(--shadow-hover);
  animation: pop .18s ease;
}

/* ===================== 登录页 ===================== */
[hidden] { display: none !important; }
.login {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  background: var(--bg); background-image: var(--bg-grad); padding: 16px;
}
.login-card {
  background: var(--card); padding: 40px 34px; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  width: 340px; max-width: 100%; text-align: center;
}
.login-card .brand { justify-content: center; margin-bottom: 6px; }
.login-card h2 { margin: 6px 0 4px; font-size: 22px; }
.login-card .subtitle { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.login-card form { padding: 20px 0 0; display: flex; flex-direction: column; gap: 12px; }
.login-card input {
  padding: 12px 14px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 15px; width: 100%;
}
.login-error { color: var(--danger); font-size: 13px; margin-top: 4px; }

/* ===================== 视图切换 ===================== */
.view-toggle { display: inline-flex; gap: 2px; background: var(--card); padding: 4px; border-radius: 999px; box-shadow: var(--shadow); }
.view-btn {
  border: none; background: transparent; color: var(--muted); cursor: pointer;
  width: 34px; height: 30px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
}
.view-btn svg { width: 17px; height: 17px; }
.view-btn:hover { background: var(--primary-ll); }
.view-btn.active { background: var(--primary); color: #fff; }

/* ===================== 卡片视图 ===================== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 16px 12px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 9px;
  transition: transform .1s, box-shadow .15s, border-color .15s;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); border-color: color-mix(in srgb, var(--primary) 35%, var(--border)); }
.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.card-title { font-size: 15.5px; font-weight: 700; color: var(--text); line-height: 1.35; }
.card-title a { color: var(--text); text-decoration: none; }
.card-title a:hover { color: var(--primary); }
.card-no { font-size: 12.5px; color: var(--muted); margin-top: -4px; }
.card-row { display: flex; justify-content: space-between; gap: 12px; font-size: 13.5px; }
.card-row .k { color: var(--muted); flex: 0 0 auto; }
.card-row .v { color: var(--text); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card-row .v.strong { font-weight: 700; color: var(--primary-d); }
.card-row .v .file-link { font-weight: 600; }
.card .muted { color: var(--muted); }
.card-foot { display: flex; justify-content: flex-end; gap: 6px; margin-top: 4px; padding-top: 8px; border-top: 1px solid var(--border); }

@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }
  .view-toggle { order: 3; }
}
.tab {
  border: none; background: transparent; color: var(--muted);
  padding: 8px 18px; border-radius: 999px; cursor: pointer;
  font-size: 14px; font-weight: 600; transition: background .15s, color .15s;
}
.tab:hover { background: var(--primary-ll); }
.tab.active { background: var(--primary); color: #fff; box-shadow: 0 1px 2px rgba(16,36,29,.2); }

/* ===================== 子表（合同发票） ===================== */
table.sub { width: 100%; border-collapse: collapse; margin-bottom: 12px; font-size: 13px; }
table.sub th, table.sub td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; }
table.sub th { background: transparent; color: var(--muted); text-transform: none; font-size: 12px; }
.sub-form { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; align-items: center; }
.sub-form input, .sub-form select { padding: 8px 10px; border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 13px; }
.sub-form .btn { padding: 8px 12px; }
a.link { color: var(--primary); cursor: pointer; text-decoration: none; font-weight: 600; }
a.link:hover { text-decoration: underline; }

/* ===================== 响应式 ===================== */
@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
  .tabs { order: 3; width: 100%; justify-content: center; }
  .topbar { flex-wrap: wrap; }
  .summary { gap: 16px; }
  .container { padding: 16px; }
}