:root {
  --bg: #f4f1ea;
  --ink: #1c1917;
  --muted: #57534e;
  --line: #d6d3d1;
  --paper: #fffdf8;
  --accent: #b45309;
  --header: #1c1917;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 28px;
  background: var(--header);
  color: #fafaf9;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  color: #fafaf9;
  text-decoration: none;
  padding: 8px 12px;
  border: 1px solid transparent;
}

.nav a:hover,
.nav a.is-current {
  border-color: #fbbf24;
  color: #fbbf24;
}

main {
  padding: 24px 28px 48px;
  max-width: 1400px;
}

main:has(.report-layout.is-open) {
  max-width: 1840px;
}

.report-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.report-layout.is-open {
  grid-template-columns: minmax(0, 1fr) min(420px, 38vw);
  gap: 16px;
  align-items: start;
}

h1, h2 {
  margin: 0 0 12px;
}

h1 { font-size: 28px; }
h2 { font-size: 20px; margin-top: 28px; }

.meta p,
.note {
  color: var(--muted);
  max-width: 80ch;
}

.alert,
.ok {
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.alert { border-color: #b91c1c; color: #7f1d1d; }
.ok { border-color: #15803d; color: #14532d; }

.table-wrap {
  overflow-x: auto;
  background: var(--paper);
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th, td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #1c1917;
  color: #fafaf9;
  font-weight: 600;
  font-size: 13px;
}

td.num { text-align: right; white-space: nowrap; }

tr.is-total td {
  font-weight: 700;
  background: #f5f0e6;
}

h3 {
  margin: 20px 0 10px;
  font-size: 16px;
}

tr.is-group td {
  font-weight: 700;
  background: #ece7dc;
}

.line-open {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  text-align: left;
}

.line-open:hover,
.line-open:focus-visible {
  color: #92400e;
}

.line-open.is-open {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.items-panel {
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 14px 14px 18px;
}

.items-panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.items-panel-head h2 {
  margin: 0;
  font-size: 18px;
}

.items-panel-period {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.items-panel-close {
  padding: 8px 12px;
  background: var(--header);
  color: #fafaf9;
  border: 0;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
}

.items-panel-close:hover {
  background: #44403c;
}

.items-total {
  margin: 0 0 10px;
  color: var(--muted);
}

.items-panel .is-item td:first-child {
  padding-left: 10px;
}

tfoot td {
  font-weight: 700;
  background: #ece7dc;
}

.split {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 24px;
  align-items: start;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin: 16px 0;
}

.filters label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.filters input,
.filters select {
  padding: 8px 10px;
  font-size: 16px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.filters button {
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  border: 0;
  font-size: 16px;
  cursor: pointer;
}

.filters button:hover {
  background: #92400e;
}

.plans-form input[type="text"] {
  width: 100%;
  max-width: 220px;
  padding: 8px 10px;
  font-size: 16px;
  border: 1px solid var(--line);
}

button[type="submit"] {
  margin-top: 16px;
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  border: 0;
  font-size: 16px;
  cursor: pointer;
}

button[type="submit"]:hover {
  background: #92400e;
}

.nav-logout {
  display: inline;
  margin: 0;
}

.nav-logout button[type="submit"] {
  margin: 0;
  padding: 8px 12px;
  background: transparent;
  color: #fafaf9;
  border: 1px solid transparent;
  font: inherit;
  cursor: pointer;
}

.nav-logout button[type="submit"]:hover {
  border-color: #fbbf24;
  color: #fbbf24;
  background: transparent;
}

.auth-page {
  max-width: 32rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 22rem;
  margin-top: 16px;
}

.auth-form label {
  font-size: 13px;
  color: var(--muted);
}

.auth-form input {
  padding: 8px 10px;
  font-size: 16px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.auth-form button[type="submit"],
#webauthn-register,
#webauthn-authenticate {
  margin-top: 8px;
  padding: 10px 18px;
  background: var(--accent);
  color: #fff;
  border: 0;
  font-size: 16px;
  cursor: pointer;
  width: fit-content;
}

.auth-form button[type="submit"]:hover,
#webauthn-register:hover,
#webauthn-authenticate:hover {
  background: #92400e;
}

.inline-form {
  margin: 0;
}

.inline-form button[type="submit"] {
  margin: 0;
  padding: 6px 12px;
  font-size: 14px;
}

@media (max-width: 960px) {
  .top, main { padding-left: 16px; padding-right: 16px; }
  .split { grid-template-columns: 1fr; }
  .top { flex-direction: column; align-items: flex-start; }
  .report-layout.is-open {
    grid-template-columns: minmax(0, 1fr);
  }
  .report-layout.is-open .items-panel {
    order: -1;
  }
}