:root {
  --bg: #f1f5f9;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --text-2: #475569;
  --muted: #64748b;
  --accent: #0d9488;
  --accent-dark: #0f766e;
  --accent-soft: #ccfbf1;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --info: #1d4ed8;
  --info-soft: #dbeafe;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px rgba(15, 23, 42, .06);
  --radius: 12px;
  --topbar-h: 56px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --surface: #111a2e;
    --surface-2: #16203a;
    --border: #1f2c47;
    --border-strong: #33415c;
    --text: #e2e8f0;
    --text-2: #b6c2d4;
    --muted: #8595ad;
    --accent: #2dd4bf;
    --accent-dark: #5eead4;
    --accent-soft: #0f3b38;
    --danger: #f87171;
    --danger-soft: #3d1a1a;
    --warn: #fbbf24;
    --warn-soft: #3b2c0c;
    --ok: #4ade80;
    --ok-soft: #123320;
    --info: #93b4fd;
    --info-soft: #16244a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.tiny { font-size: 12px; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.grow { flex: 1; }

/* ---------------------------------------------------------------- login */
.login {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  box-shadow: var(--shadow);
  text-align: center;
}
.login-logo { font-size: 40px; line-height: 1; }
.login-card h1 { margin: 10px 0 2px; font-size: 22px; }
.login-card .field { text-align: left; margin-top: 16px; }
.login-card .btn { margin-top: 18px; }
.login-card .tiny { margin: 12px 0 0; }

.google-btn { display: flex; justify-content: center; margin-top: 20px; min-height: 44px; }
.first-run {
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 13px;
  margin: 18px 0 0;
  text-align: left;
}
.or-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0 4px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.or-line::before, .or-line::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.linkish {
  display: block;
  width: 100%;
  margin-top: 14px;
  background: none;
  border: 0;
  padding: 4px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.form-ok {
  background: var(--ok-soft);
  color: var(--ok);
  border-radius: 9px;
  padding: 8px 11px;
  font-size: 13px;
  margin: 10px 0 0;
  text-align: left;
}
#reset-block { text-align: left; }
#reset-block .btn { margin-top: 10px; }

.pending-icon { font-size: 36px; margin-top: 12px; }
.pending-title { font-size: 18px; margin: 6px 0; }

/* member list */
.member { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--border); }
.member:last-child { border-bottom: 0; }
.member img, .member .avatar-fallback {
  width: 38px; height: 38px; border-radius: 50%; flex: 0 0 auto;
  background: var(--surface-2); border: 1px solid var(--border);
}
.member .avatar-fallback {
  display: grid; place-items: center;
  font-weight: 700; color: var(--muted); font-size: 15px;
}
.member-main { flex: 1; min-width: 0; }
.member-name { font-weight: 620; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.member-email { color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.member-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; flex: 0 0 auto; }
.badge.owner   { background: var(--accent-soft); color: var(--accent-dark); border-color: transparent; }
.badge.admin   { background: var(--info-soft); color: var(--info); border-color: transparent; }
.badge.blocked { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.badge.you     { background: var(--surface-2); color: var(--muted); }
@media (max-width: 520px) {
  .member { flex-wrap: wrap; }
  .member-actions { width: 100%; justify-content: flex-start; padding-left: 48px; }
}

/* --------------------------------------------------------------- shell */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  padding-top: env(safe-area-inset-top);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: -.2px; }
.brand-mark { font-size: 20px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.who { color: var(--muted); font-size: 13px; max-width: 30vw; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.tabs {
  position: sticky;
  top: var(--topbar-h);
  z-index: 25;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 8px;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 0 0 auto;
  appearance: none;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 12px 12px 10px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.view {
  padding: 16px 14px 64px;
  max-width: 1180px;
  margin: 0 auto;
}

/* --------------------------------------------------------------- parts */
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.page-head h2 { margin: 0; font-size: 19px; letter-spacing: -.3px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 14px; }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-weight: 650;
  font-size: 14px;
}
.card-body { padding: 14px; }
.card-body.tight { padding: 0; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
@media (min-width: 720px) { .stat-grid { grid-template-columns: repeat(4, 1fr); } }
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: var(--shadow);
}
.stat .label { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.stat .value { font-size: 22px; font-weight: 700; letter-spacing: -.5px; margin-top: 4px; }
.stat .sub { font-size: 12px; color: var(--muted); }
.stat.alert .value { color: var(--danger); }
.stat.warn .value { color: var(--warn); }
.stat.good .value { color: var(--ok); }

/* rows / lists */
.rows { display: flex; flex-direction: column; }
.row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  text-align: left;
  background: none;
  border-left: 0; border-right: 0; border-top: 0;
  color: inherit;
  font: inherit;
  width: 100%;
}
.row:last-child { border-bottom: 0; }
.row:hover { background: var(--surface-2); }
.row-main { flex: 1; min-width: 0; }
.row-title { font-weight: 620; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.row-sub { color: var(--muted); font-size: 13px; margin-top: 2px; overflow-wrap: anywhere; }
.row-side { text-align: right; flex: 0 0 auto; }
.row-amount { font-weight: 700; font-variant-numeric: tabular-nums; }

.empty { padding: 32px 16px; text-align: center; color: var(--muted); }
.empty .big { font-size: 30px; display: block; margin-bottom: 6px; }

/* badges */
.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .3px;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-2);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.badge.pending  { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge.approved { background: var(--info-soft); color: var(--info); border-color: transparent; }
.badge.ordered  { background: var(--accent-soft); color: var(--accent-dark); border-color: transparent; }
.badge.received { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.badge.cancelled{ background: var(--surface-2); color: var(--muted); }
.badge.unpaid   { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.badge.partial  { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.badge.paid     { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.badge.low      { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.badge.hazard   { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

/* buttons */
.btn {
  appearance: none;
  font: inherit;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text);
  padding: 9px 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: filter .12s ease;
}
.btn:hover { filter: brightness(.97); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
@media (prefers-color-scheme: dark) { .btn.primary { color: #04211f; } }
.btn.ghost { background: none; border-color: var(--border); color: var(--text-2); }
.btn.danger { color: var(--danger); border-color: var(--danger); background: none; }
.btn.small { padding: 6px 10px; font-size: 13px; border-radius: 8px; }
.btn.block { display: block; width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* forms */
.field { display: block; margin-bottom: 12px; }
.field > span { display: block; font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 5px; }
input, select, textarea {
  width: 100%;
  font: inherit;
  font-size: 16px; /* keeps iOS from zooming on focus */
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  padding: 9px 11px;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}
textarea { min-height: 66px; resize: vertical; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
@media (max-width: 520px) { .field-grid.stack-sm { grid-template-columns: 1fr; } }
.form-error {
  background: var(--danger-soft);
  color: var(--danger);
  border-radius: 9px;
  padding: 8px 11px;
  font-size: 13px;
  margin: 10px 0 0;
}

.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 12px; }
.toolbar input, .toolbar select { width: auto; flex: 1 1 150px; min-width: 130px; font-size: 14px; padding: 8px 10px; }

/* line-item editor */
.lines { display: flex; flex-direction: column; gap: 10px; }
.line {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  background: var(--surface-2);
  position: relative;
}
.line .line-no { font-size: 11px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.line-del {
  position: absolute; top: 6px; right: 6px;
  border: 0; background: none; color: var(--danger);
  font-size: 18px; line-height: 1; cursor: pointer; padding: 4px 8px;
}
.line .field { margin-bottom: 8px; }
.line-amount { font-size: 13px; font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }

.totals { border-top: 1px solid var(--border); margin-top: 12px; padding-top: 10px; }
.total-row { display: flex; justify-content: space-between; font-size: 14px; padding: 3px 0; }
.total-row.grand { font-size: 17px; font-weight: 700; border-top: 1px solid var(--border); margin-top: 6px; padding-top: 8px; }

/* tables (desktop reports) */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
table.data th, table.data td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
table.data th { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); background: var(--surface-2); }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* detail lists */
.kv { display: grid; grid-template-columns: minmax(96px, auto) 1fr; gap: 6px 14px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }

/* -------------------------------------------------------------- modal */
.modal-back {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .5);
  z-index: 60;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}
@media (min-width: 640px) { .modal-back { align-items: center; padding: 24px; } }
.modal {
  background: var(--surface);
  width: 100%;
  max-width: 620px;
  max-height: 92dvh;
  display: flex;
  flex-direction: column;
  border-radius: 16px 16px 0 0;
  box-shadow: var(--shadow);
}
@media (min-width: 640px) { .modal { border-radius: 16px; max-height: 88dvh; } }
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-head h3 { margin: 0; font-size: 17px; }
.modal-close { border: 0; background: none; font-size: 24px; line-height: 1; color: var(--muted); cursor: pointer; padding: 0 4px; }
.modal-body { padding: 16px; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.modal-foot {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  background: var(--surface);
  border-radius: 0 0 16px 16px;
}
.modal-foot .btn { flex: 1; }

/* -------------------------------------------------------------- toast */
.toast-root {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
  width: max-content;
  max-width: 92vw;
}
.toast {
  background: #0f172a;
  color: #f8fafc;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: var(--shadow);
  animation: pop .18s ease;
}
.toast.err { background: var(--danger); color: #fff; }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } }

/* -------------------------------------------------------------- print */
.print-area { display: none; }
@media print {
  body { background: #fff; color: #000; }
  #app, #modal-root, #toast-root, #login { display: none !important; }
  .print-area { display: block !important; padding: 0; }
  .print-area h1 { font-size: 18pt; margin: 0 0 2pt; }
  .print-area .meta { font-size: 9pt; color: #444; margin-bottom: 10pt; }
  .print-area table { width: 100%; border-collapse: collapse; font-size: 9pt; }
  .print-area th, .print-area td { border: 1px solid #999; padding: 3pt 5pt; text-align: left; }
  .print-area th { background: #eee; }
  .print-area td.num, .print-area th.num { text-align: right; }
  .print-area tfoot td { font-weight: bold; }
  @page { margin: 12mm; }
}