:root {
  --bg: #e8ecef;
  --ink: #0f1720;
  --paper: #f4f6f8;
  --surface: #ffffff;
  --line: #d5dce0;
  --muted: #5b6570;
  --accent: #0b6e4f;
  --side: #101820;
  --side-ink: #e8eef2;
  --side-muted: #8a97a3;
  --focus: #0b6e4f;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --radius: 4px;
  --pad-page: 24px 24px 64px;
  --pad-panel: 24px;
  --gap: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(16, 24, 32, 0.03), transparent 180px),
    var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Noto Sans CJK JP", "Noto Sans CJK SC", "Liberation Sans", sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

body[data-country="jp"] { --accent: #9b2226; --focus: #9b2226; }
body[data-country="id"] { --accent: #9c6644; --focus: #9c6644; }
body[data-country="gb"] { --accent: #0b6e4f; --focus: #0b6e4f; }

a { color: var(--accent); }
a:hover { color: var(--ink); }

button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}
body.is-admin .shell { grid-template-columns: 1fr; }
body.is-admin .side { display: none; }

.side {
  background: var(--side);
  color: var(--side-ink);
  padding: var(--space-5) var(--space-3) var(--space-6);
  border-right: 1px solid #000;
}

.side-brand {
  padding: 0 var(--space-2);
}
.side-brand a {
  color: var(--side-ink);
  text-decoration: none;
  font-family: "IBM Plex Serif", "Noto Serif CJK JP", "Liberation Serif", serif;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.side-meta {
  display: block;
  margin-top: var(--space-1);
  color: var(--side-muted);
  font-size: 12px;
  line-height: 1.35;
}
.side-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: var(--space-5);
}
.side-label {
  margin: var(--space-4) var(--space-2) var(--space-2);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--side-muted);
}
.side-link {
  color: var(--side-ink);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 6px;
  font-size: 14px;
}
.side-link:hover { background: rgba(255,255,255,0.06); color: #fff; }
.side-link.on { background: rgba(255,255,255,0.1); color: #fff; }
.side-note {
  color: var(--side-muted);
  padding: var(--space-2) 10px;
  font-size: 13px;
  margin: var(--space-2) 0 0;
}

.workspace {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-3) var(--space-4);
  align-items: center;
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid #d0d6db;
  background: rgba(244, 246, 248, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-family: "IBM Plex Serif", "Liberation Serif", serif;
  font-size: 20px;
}
.mobile-only { display: none; }
.bar-spacer { flex: 1; min-width: 0; }
.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  align-items: center;
  justify-content: flex-end;
}
.topnav a { color: var(--ink); text-decoration: none; font-size: 14px; }

.locale-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border: 1px solid var(--ink);
  background: var(--ink);
  color: #f4f6f8;
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}
.locale-chip:hover {
  background: #243040;
  border-color: #243040;
  color: #fff;
}
.locale-chip .gear {
  opacity: 1;
  font-size: 14px;
  line-height: 1;
}

button.link {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  color: var(--ink);
}

main {
  max-width: 1120px;
  width: 100%;
  margin: 0 auto;
  padding: var(--pad-page);
}

h1 {
  font-family: "IBM Plex Serif", "Noto Serif CJK JP", "Liberation Serif", serif;
  font-weight: 500;
  font-size: 34px;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
  letter-spacing: -0.02em;
}
h2 {
  font-family: "IBM Plex Serif", "Noto Serif CJK JP", "Liberation Serif", serif;
  font-weight: 500;
  font-size: 22px;
  margin: var(--space-5) 0 var(--space-3);
}
.lead {
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 var(--space-5);
}
.kicker {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--muted);
  margin: 0 0 var(--space-2);
}
.help {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

.panel,
.editor,
.viewer,
.auth.panel {
  background: var(--surface);
  border: 1px solid #d0d6db;
  padding: var(--pad-panel);
  overflow-x: auto;
}

.quick {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-5) 0 var(--space-4);
}
.quick-card {
  display: flex;
  align-items: flex-end;
  min-height: 88px;
  padding: 14px;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid #d0d6db;
  border-top: 4px solid var(--accent);
}
.quick-card strong {
  font-family: "IBM Plex Serif", serif;
  font-weight: 500;
  font-size: 18px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin: var(--space-3) 0 var(--space-5);
}
.stat-row.wrap { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
.stat {
  background: var(--paper);
  border: 1px solid #d0d6db;
  padding: var(--space-3) 14px;
}
.stat b {
  display: block;
  font-family: "IBM Plex Serif", serif;
  font-size: 28px;
  font-weight: 500;
  line-height: 1;
  margin-bottom: var(--space-1);
}
.stat span { color: var(--muted); font-size: 13px; }

.docnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0 0 var(--space-3);
}
.docnav a {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid #d0d6db;
  background: var(--paper);
  padding: 8px 12px;
  margin: 0 0 var(--space-2);
  margin-right: -1px;
  font-size: 13px;
}
.docnav a.on { background: var(--ink); color: #f4f6f8; }

form.stack-form,
.paper-form,
.auth form {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  margin-top: var(--space-3);
}
form.template-bar,
form.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: end;
  margin: 0 0 var(--space-4);
}

fieldset {
  border: 1px solid #d0d6db;
  background: var(--paper);
  margin: 0;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}
legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 13px;
}

label {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: 13px;
  min-width: 0;
}
label.check {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  padding: 2px 0;
}
label.check input {
  width: auto;
  margin: 3px 0 0;
  flex: 0 0 auto;
}

input, select, textarea {
  width: 100%;
  border: 1px solid #cfd5db;
  background: var(--surface);
  padding: 8px 10px;
  border-radius: var(--radius);
  min-width: 0;
}

.grid2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  align-items: start;
}

.paper-form {
  background: var(--paper);
  border: 1px solid #d0d6db;
  padding: var(--space-4);
  margin-top: var(--space-3);
  box-shadow: none;
}

.lines-head,
.line {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) 72px 96px 72px auto;
  gap: 10px;
  align-items: center;
}
.line { margin-top: 6px; }
.lines-head {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: var(--space-2);
  padding: 0 2px;
}
body[data-country="gb"] .lines-head,
body[data-country="id"] .lines-head,
body[data-country="gb"] .line,
body[data-country="id"] .line {
  grid-template-columns: minmax(0, 1.8fr) 72px 110px auto;
}
.editor.is-delivery .lines-head,
.editor.is-delivery .line {
  grid-template-columns: minmax(0, 1fr) 120px auto;
}
.editor.is-text .lines-head,
.editor.is-text #lines,
.editor.is-text #add-line { display: none; }

.line button[data-remove] {
  background: transparent;
  color: var(--muted);
  border: 1px solid #cfd5db;
  padding: 8px 10px;
  white-space: nowrap;
  border-radius: var(--radius);
}
.line button[data-remove]:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.actions {
  display: flex;
  gap: var(--space-4);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-2);
}

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  color: #f4f6f8;
  border: 1px solid var(--ink);
  text-decoration: none;
  padding: 9px 14px;
  cursor: pointer;
  border-radius: var(--radius);
}
.ghost, button.ghost {
  background: transparent;
  color: var(--ink);
}
button.ghost#add-line {
  align-self: flex-start;
  width: auto;
}

.errors {
  background: #fff;
  border: 1px solid #9b2226;
  padding: 10px 10px 10px 28px;
  margin: 0 0 var(--space-3);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 0 0 var(--space-4);
}
.inline-form {
  padding: var(--space-3);
  background: var(--paper);
  border: 1px solid #d0d6db;
}
.template-bar,
.template-save {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: end;
  margin: 0 0 var(--space-4);
  padding: var(--space-3);
  background: var(--paper);
  border: 1px solid #d0d6db;
}
.template-bar label,
.template-save label {
  flex: 1 1 220px;
  min-width: 0;
}
.sheet {
  width: 100%;
  height: 1120px;
  border: 1px solid #d0d6db;
  background: white;
  display: block;
}
.auth { max-width: 460px; }

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin-top: var(--space-3);
  -webkit-overflow-scrolling: touch;
}
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid #e1e5e8;
  vertical-align: middle;
}
th {
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.num { text-align: right; font-variant-numeric: tabular-nums; }
table a { white-space: nowrap; }
.pre { white-space: pre-wrap; }

.filters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)) auto;
  gap: var(--space-3);
  align-items: end;
  background: var(--paper);
  padding: var(--space-3);
  border: 1px solid #d0d6db;
  margin: 0 0 var(--space-4);
}

.settings {
  border: 1px solid #d0d6db;
  border-radius: 10px;
  padding: 0;
  width: min(420px, calc(100vw - 32px));
  background: var(--surface);
}
.settings::backdrop { background: rgba(15, 23, 32, 0.35); }
.settings form {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  margin: 0;
  padding: var(--space-5);
}
.settings h2 { margin: 0; }

@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
  .side {
    position: sticky;
    top: 0;
    z-index: 6;
    max-height: 38vh;
    overflow: auto;
    padding: var(--space-4) var(--space-3);
  }
  .mobile-only { display: inline; }
  main { padding: 16px 16px 48px; }
  .panel, .editor, .viewer { padding: 16px; }
  .quick, .stat-row, .grid2, .filters { grid-template-columns: 1fr; }
  .lines-head { display: none; }
  .line,
  body[data-country="gb"] .line,
  body[data-country="id"] .line,
  .editor.is-delivery .line {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--line);
  }
  h1 { font-size: 28px; }
  .bar { padding: var(--space-3) 16px; }
}