:root {
  color-scheme: light;
  --ink: #172226;
  --muted: #68767b;
  --label-ink: #526167;
  --hint-ink: #899591;
  --ghost-ink: #54635f;
  --disabled-ink: #68736f;
  --line: #dce4e2;
  --row-line: #edf0ef;
  --paper: #f5f7f4;
  --card: #fff;
  --input-bg: #fbfcfb;
  --input-line: #cdd7d4;
  --disabled-bg: #edf1ef;
  --fill-soft: #f9faf8;
  --fill-table: #fafbf9;
  --detail-bg: #f8faf9;
  --tiger: #e96529;
  --tiger-fill: #e96529;
  --tiger-fill-hover: #bb4218;
  --forest: #164e47;
  --forest-fill: #164e47;
  --forest-soft: #e5f2ef;
  --gold: #d6a038;
  --danger: #b9382e;
  --danger-soft: #ffe8e4;
  --danger-fill: #fff7f6;
  --danger-line: #ecc9c6;
  --shadow: 0 12px 38px rgba(28, 55, 51, .08);
  --overdue-bg: #fff9f0;
  --selection-bg: #fff9f5;
  --selection-line: #f0dcd1;
  --legacy-bg: #fff4d7;
  --legacy-ink: #7d5b16;
  --tag-pending-bg: #fff1cb;
  --tag-pending-ink: #8d6209;
  --tag-partial-bg: #fff0da;
  --tag-partial-ink: #965c16;
  --tag-cancelled-bg: #e9edeb;
  --tag-cancelled-ink: #7c8582;
  --toast-bg: #164e47;
  --toast-danger: #b9382e;
  --sidebar: #172226;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

[data-theme="dark"] {
  color-scheme: dark;
  --ink: #e8efec;
  --muted: #94a29e;
  --label-ink: #aebbb8;
  --hint-ink: #8a9793;
  --ghost-ink: #b8c3c0;
  --disabled-ink: #7e8a86;
  --line: #2c3735;
  --row-line: #232d2b;
  --paper: #121817;
  --card: #1a2220;
  --input-bg: #131a19;
  --input-line: #394542;
  --disabled-bg: #222b29;
  --fill-soft: #151c1a;
  --fill-table: #171f1d;
  --detail-bg: #151c1a;
  --tiger: #ff8b54;
  --tiger-fill: #c4501f;
  --tiger-fill-hover: #a8431a;
  --forest: #63c4b3;
  --forest-fill: #1e5a50;
  --forest-soft: #1e3a34;
  --gold: #e0b04f;
  --danger: #ef7363;
  --danger-soft: #45241e;
  --danger-fill: #2a1a17;
  --danger-line: #5a322b;
  --shadow: 0 12px 38px rgba(0, 0, 0, .42);
  --overdue-bg: #2a2317;
  --selection-bg: #2b2119;
  --selection-line: #47331f;
  --legacy-bg: #332a10;
  --legacy-ink: #e8c766;
  --tag-pending-bg: #3a2e10;
  --tag-pending-ink: #eecf75;
  --tag-partial-bg: #3a2915;
  --tag-partial-ink: #eeb277;
  --tag-cancelled-bg: #232b29;
  --tag-cancelled-ink: #9aa8a4;
  --toast-bg: #1e5a50;
  --toast-danger: #a13a30;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 1040px; color: var(--ink); background: var(--paper); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .5; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.eyebrow { margin: 0; color: var(--tiger); font-size: 10px; font-weight: 800; letter-spacing: .18em; }

.app-sidebar { position: fixed; inset: 0 auto 0 0; z-index: 10; width: 224px; display: flex; flex-direction: column; color: white; background: var(--sidebar); border-right: 4px solid var(--tiger); }
.sidebar-brand { display: flex; align-items: center; gap: 12px; height: 86px; padding: 0 20px; border-bottom: 1px solid rgba(255,255,255,.1); }
.sidebar-brand strong { display: block; margin-top: 3px; font-size: 14px; }
.brand-mark { width: 46px; height: 46px; flex: 0 0 auto; display: grid; place-items: center; color: var(--tiger); border: 2px solid var(--tiger); border-radius: 14px 4px; font-weight: 900; }
.main-nav { display: flex; flex-direction: column; gap: 6px; padding: 22px 14px; }
.main-nav a { display: flex; align-items: center; gap: 12px; padding: 13px 14px; color: #c9d2d0; border-radius: 8px; text-decoration: none; font-size: 13px; font-weight: 700; }
.main-nav a span { color: #697875; font-size: 10px; }
.main-nav a:hover { color: white; background: rgba(255,255,255,.06); }
.main-nav a.active { color: white; background: var(--tiger-fill); }
.main-nav a.active span { color: white; }
.sidebar-backup { margin: 0 14px; padding: 16px 14px; border: 1px solid rgba(255,255,255,.12); border-radius: 9px; background: rgba(255,255,255,.04); }
.sidebar-backup > strong { display: block; margin-top: 4px; font-size: 13px; }
.backup-directory-status { min-height: 32px; margin: 10px 0; color: #c9d2d0; font-size: 11px; line-height: 1.45; overflow-wrap: anywhere; }
.sidebar-backup .button { width: 100%; }
.sidebar-backup .button + .button { margin-top: 7px; }
.sidebar-backup .sidebar-secondary { color: white; background: transparent; border-color: rgba(255,255,255,.25); }
.sidebar-backup .sidebar-secondary:hover { background: rgba(255,255,255,.08); }
.sidebar-backup small { display: block; margin-top: 9px; color: #84938f; font-size: 9px; line-height: 1.4; }
.sidebar-foot { margin-top: auto; display: flex; align-items: center; gap: 9px; padding: 20px; color: #aebbb8; font-size: 11px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #64cc9c; box-shadow: 0 0 0 4px rgba(100,204,156,.14); }
.app-content { margin-left: 224px; }
.topbar { height: 86px; display: flex; align-items: center; padding: 0 28px; color: var(--ink); background: var(--card); border-bottom: 1px solid var(--line); }
.topbar h1 { margin: 2px 0 0; font-size: 22px; }
.topbar-meta { margin-left: auto; display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; }
.version-label { padding: 4px 8px; color: var(--forest); background: var(--forest-soft); border-radius: 999px; font-size: 10px; font-weight: 800; letter-spacing: .04em; }
.theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; padding: 0; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 8px; transition: color .15s, border-color .15s, background .15s; }
.theme-toggle:hover { color: var(--tiger); border-color: var(--tiger); background: rgba(233, 101, 41, .1); }
.theme-toggle svg { width: 15px; height: 15px; }
.icon-sun { display: none; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
.page-shell { padding: 22px 26px 40px; }

.summary-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.summary-card { position: relative; overflow: hidden; min-height: 98px; display: flex; flex-direction: column; justify-content: center; padding: 18px 20px; border: 1px solid var(--line); border-radius: 11px; background: var(--card); box-shadow: var(--shadow); }
.summary-card::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 5px; background: var(--forest); }
.summary-card.purchase::before { background: var(--gold); }.summary-card.profit::before { background: var(--tiger); }.summary-card.count::before { background: var(--ink); }
.summary-card span { color: var(--muted); font-size: 12px; }.summary-card strong { margin-top: 5px; font-size: 25px; letter-spacing: -.03em; }
.workspace-grid { display: grid; grid-template-columns: 350px minmax(680px, 1fr); gap: 16px; align-items: start; }
.panel { border: 1px solid var(--line); border-radius: 11px; background: var(--card); box-shadow: var(--shadow); }
.form-panel { position: sticky; top: 18px; max-height: calc(100vh - 36px); overflow-y: auto; }
.panel-heading { display: flex; justify-content: space-between; align-items: center; padding: 19px 21px 14px; border-bottom: 1px solid var(--line); }
.panel-heading h2, .section-intro h2 { margin: 2px 0 0; font-size: 20px; }
fieldset { margin: 0; padding: 18px 21px 4px; border: 0; } fieldset + fieldset { margin-top: 8px; border-top: 1px solid var(--line); }
legend { padding: 0; font-size: 13px; font-weight: 800; } legend span { margin-right: 7px; color: var(--tiger); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; margin-top: 14px; }
label { display: flex; flex-direction: column; gap: 6px; color: var(--label-ink); font-size: 11px; font-weight: 700; } label.wide { grid-column: 1 / -1; }
input, select, textarea { width: 100%; padding: 9px 10px; color: var(--ink); background: var(--input-bg); border: 1px solid var(--input-line); border-radius: 7px; outline: none; transition: border-color .15s, box-shadow .15s; }
input:focus, select:focus, textarea:focus { border-color: var(--tiger); box-shadow: 0 0 0 3px rgba(233,101,41,.12); } input:disabled { color: var(--disabled-ink); background: var(--disabled-bg); }
textarea { resize: vertical; } small { color: var(--hint-ink); font-weight: 400; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 8px 12px; border: 1px solid transparent; border-radius: 7px; font-size: 12px; font-weight: 800; }
.button.primary { color: white; background: var(--tiger-fill); }.button.primary:hover { background: var(--tiger-fill-hover); }.button.secondary { color: white; background: var(--forest-fill); }.button.ghost { color: var(--ghost-ink); background: var(--card); border-color: var(--line); }.button.danger { color: var(--danger); background: var(--danger-fill); border-color: var(--danger-line); }
.submit-button { width: calc(100% - 42px); justify-content: space-between; margin: 18px 21px 23px; padding: 12px 15px; }
.filters { display: grid; gap: 10px; padding: 15px 17px; background: var(--fill-soft); border-bottom: 1px solid var(--line); }
.order-filters { grid-template-columns: 1.4fr repeat(4, 1fr); }.finance-filters { grid-template-columns: 1.6fr repeat(3, 1fr) auto; }.payable-filters { grid-template-columns: 1.3fr 1.3fr repeat(3, 1fr) auto; }
.filters input, .filters select { padding: 8px; background: var(--card); font-size: 12px; }.filter-actions { display: flex; align-items: end; gap: 7px; }
.table-wrap { min-height: 260px; overflow-x: auto; } table { width: 100%; border-collapse: collapse; font-size: 12px; }
th { padding: 12px 10px; color: var(--muted); background: var(--fill-table); border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
td { padding: 13px 10px; border-bottom: 1px solid var(--row-line); vertical-align: top; } tr.overdue { background: var(--overdue-bg); } tr.cancelled { opacity: .64; }
.cell-stack { display: flex; flex-direction: column; gap: 4px; }.cell-stack strong { white-space: nowrap; }.subtle { color: var(--muted); font-size: 11px; }
.tag { display: inline-flex; width: fit-content; padding: 3px 7px; color: var(--forest); background: var(--forest-soft); border-radius: 999px; font-size: 10px; font-weight: 800; }.tag.pending { color: var(--tag-pending-ink); background: var(--tag-pending-bg); }.tag.partial { color: var(--tag-partial-ink); background: var(--tag-partial-bg); }.tag.cancelled { color: var(--tag-cancelled-ink); background: var(--tag-cancelled-bg); }.tag.danger { color: var(--danger); background: var(--danger-soft); }
.profit-positive { color: var(--forest); }.profit-negative { color: var(--danger); }.row-actions { display: flex; flex-wrap: wrap; gap: 5px; min-width: 145px; }.row-actions .button { padding: 5px 8px; }.status-select { width: 88px; padding: 5px; font-size: 11px; }
.empty-state { min-height: 220px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: var(--muted); }.pagination { display: flex; justify-content: center; align-items: center; gap: 15px; padding: 14px; }.pagination span { color: var(--muted); font-size: 12px; }
.section-intro { display: flex; align-items: end; justify-content: space-between; margin-bottom: 16px; }.section-intro h2 { font-size: 24px; }.section-intro p:last-child { margin: 7px 0 0; color: var(--muted); font-size: 13px; }
.selection-bar { display: flex; align-items: center; gap: 28px; padding: 15px 18px; background: var(--selection-bg); border-bottom: 1px solid var(--selection-line); }.selection-bar div { display: flex; flex-direction: column; gap: 3px; }.selection-bar span { color: var(--muted); font-size: 10px; }.selection-bar strong { font-size: 14px; }.selection-bar .button { margin-left: auto; }.check-column { width: 42px; }.check-column input, td input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--tiger); }
.currency-totals { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 15px; }.currency-card { min-width: 225px; padding: 14px 17px; background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--gold); border-radius: 9px; box-shadow: var(--shadow); }.currency-card strong { display: block; margin-bottom: 7px; }.currency-card div { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; }.currency-card div + div { margin-top: 4px; }.currency-card b { color: var(--ink); }
.payable-detail td { padding: 0; background: var(--detail-bg); }.payment-drawer { display: none; grid-template-columns: minmax(340px, 1fr) minmax(320px, .8fr); gap: 18px; padding: 17px 20px; border-bottom: 1px solid var(--line); }.payment-drawer.open { display: grid; }.payment-history h3, .payment-entry h3 { margin: 0 0 10px; font-size: 13px; }.history-list { display: flex; flex-direction: column; gap: 7px; }.history-item { display: grid; grid-template-columns: 1fr 1fr 1.3fr auto; align-items: center; gap: 8px; padding: 8px 10px; background: var(--card); border: 1px solid var(--line); border-radius: 7px; }.history-empty { padding: 12px; color: var(--muted); background: var(--card); border: 1px dashed var(--line); border-radius: 7px; font-size: 11px; }.payment-form { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }.payment-form .wide { grid-column: 1 / -1; }.payment-form .button { justify-self: end; }.legacy-notice { padding: 12px; color: var(--legacy-ink); background: var(--legacy-bg); border-radius: 7px; font-size: 11px; }
.toast { position: fixed; right: 26px; bottom: 26px; z-index: 30; max-width: 380px; padding: 13px 17px; color: white; background: var(--toast-bg); border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,.18); font-size: 13px; }.toast.error { background: var(--toast-danger); }
.current-user { padding: 4px 9px; color: var(--forest); background: var(--forest-soft); border-radius: 999px; font-size: 11px; font-weight: 800; }
.form-error { margin: 0; color: var(--danger); font-size: 11px; font-weight: 700; }
.users-grid { grid-template-columns: 320px minmax(420px, 1fr); }
#user-form fieldset .form-error { margin-top: 10px; }
.password-dialog { width: min(420px, calc(100vw - 40px)); padding: 22px 24px; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 11px; box-shadow: var(--shadow); }
.password-dialog::backdrop { background: rgba(15, 24, 22, .5); }
.password-dialog h2 { margin: 0; font-size: 19px; }
.password-dialog p.subtle { margin: 7px 0 14px; }
.password-dialog label + label { margin-top: 11px; }
.password-dialog .form-error { margin-top: 11px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.login-body { min-width: 0; display: grid; place-items: center; min-height: 100vh; background: var(--paper); }
.login-shell { width: min(420px, calc(100vw - 32px)); padding: 24px 0; }
.login-card { padding: 26px 28px 28px; background: var(--card); border: 1px solid var(--line); border-radius: 13px; box-shadow: var(--shadow); }
.login-brand { display: flex; align-items: center; gap: 12px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.login-brand strong { display: block; margin-top: 3px; font-size: 14px; }
.login-form { display: flex; flex-direction: column; gap: 13px; margin-top: 20px; }
.login-form h1 { margin: 0; font-size: 21px; }
.login-hint { margin: -6px 0 2px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.login-submit { width: 100%; margin-top: 4px; padding: 11px; }
@media (max-width: 1250px) { .workspace-grid { grid-template-columns: 325px minmax(650px, 1fr); }.page-shell { padding-inline: 17px; } }
@media (max-width: 900px) { body { min-width: 0; }.app-sidebar { position: static; width: 100%; border-right: 0; border-bottom: 4px solid var(--tiger); }.sidebar-brand { height: 68px; }.main-nav { flex-direction: row; padding: 8px 12px; overflow-x: auto; }.main-nav a { white-space: nowrap; }.sidebar-backup { margin: 4px 12px 12px; display: grid; grid-template-columns: minmax(180px, 1fr) auto auto; align-items: center; gap: 8px; }.sidebar-backup > .eyebrow, .sidebar-backup > strong, .sidebar-backup > small { display: none; }.backup-directory-status { min-height: 0; margin: 0; }.sidebar-backup .button { width: auto; }.sidebar-backup .button + .button { margin-top: 0; }.sidebar-foot { display: none; }.app-content { margin-left: 0; }.topbar { height: 68px; }.summary-grid { grid-template-columns: 1fr 1fr; }.workspace-grid { grid-template-columns: 1fr; }.form-panel { position: static; max-height: none; }.order-filters, .finance-filters, .payable-filters { grid-template-columns: 1fr 1fr; }.payment-drawer { grid-template-columns: 1fr; } }