@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #f7f6f3;
  --surface: #ffffff;
  --line: #eaeaea;
  --line-soft: rgba(0, 0, 0, 0.06);
  --text: #111111;
  --text-muted: #787774;
  --accent: #111111;
  --danger: #9f2f2d;
  --danger-bg: #fdebec;
  --mark-bg: #fbf3db;
  --mark-text: #956400;
  --pale-blue: #e1f3fe;
  --pale-blue-text: #1f6c9f;
  --pale-green: #edf3ec;
  --pale-green-text: #346538;
  --pale-yellow: #fbf3db;
  --pale-yellow-text: #956400;
  --sans: 'SF Pro Display', 'Geist Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --serif: 'Instrument Serif', 'Newsreader', 'Playfair Display', Georgia, serif;
  --mono: 'Geist Mono', 'SF Mono', 'JetBrains Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 8px;
}
* {
  box-sizing: border-box;
}
html {
  background: var(--bg);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  font-size: 15px;
  position: relative;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
}

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.ambient::before {
  content: '';
  position: absolute;
  width: 56vw;
  height: 56vw;
  top: -18%;
  left: -12%;
  background: radial-gradient(circle, rgba(149, 100, 0, 0.035) 0%, transparent 68%);
  animation: ambient-drift 28s var(--ease) infinite alternate;
}
.ambient::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.018) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.45;
}
@keyframes ambient-drift {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(8%, 10%, 0);
  }
}

.wrap {
  max-width: 1024px;
  margin: 0 auto;
  padding: 80px 24px 120px;
  position: relative;
  z-index: 1;
}

header {
  margin-bottom: 56px;
}
header h1 {
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 400;
  margin: 0 0 10px;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  max-width: 36em;
}

.nav-home {
  display: inline-block;
  margin-bottom: 18px;
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 600ms var(--ease),
    transform 600ms var(--ease);
  transition-delay: calc(var(--index, 0) * 80ms);
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 9999px;
  padding: 3px 8px;
  background: var(--pale-yellow);
  color: var(--pale-yellow-text);
  margin-bottom: 12px;
}
.tag.blue {
  background: var(--pale-blue);
  color: var(--pale-blue-text);
}
.tag.green {
  background: var(--pale-green);
  color: var(--pale-green-text);
}
.tag.red {
  background: var(--danger-bg);
  color: var(--danger);
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.tool-item {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 180px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
  transition:
    box-shadow 200ms var(--ease),
    transform 200ms var(--ease);
}
.tool-item:nth-child(1) {
  grid-row: span 2;
  min-height: 376px;
}
.tool-item:nth-child(4) {
  grid-column: 1 / -1;
  min-height: 160px;
}
.tool-item:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.tool-item:active {
  transform: scale(0.98);
}
.tool-item h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.tool-item p {
  margin: 0;
  font-size: 14px;
  color: var(--text-muted);
  max-width: 42em;
}
@media (max-width: 720px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
  .tool-item:nth-child(1),
  .tool-item:nth-child(4) {
    grid-column: auto;
    grid-row: auto;
    min-height: 180px;
  }
  header h1 {
    font-size: 34px;
  }
  .wrap {
    padding: 48px 20px 80px;
  }
}

.panel {
  padding: 36px 0;
  border-top: 1px solid var(--line);
}
.panel:first-of-type {
  border-top: none;
  padding-top: 0;
}
.panel-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

details.collapse > summary {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  user-select: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
details.collapse > summary::-webkit-details-marker {
  display: none;
}
details.collapse > summary::marker {
  content: '';
}
details.collapse > summary::before {
  content: '+';
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1;
  color: var(--text);
  width: 12px;
}
details.collapse[open] > summary {
  margin-bottom: 18px;
  border-bottom-color: var(--line);
  padding-bottom: 12px;
}
details.collapse[open] > summary::before {
  content: '\2212';
}

textarea {
  width: 100%;
  min-height: 120px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 13px;
  background: var(--surface);
  color: var(--text);
  line-height: 1.55;
}
textarea:focus {
  outline: none;
  border-color: var(--text);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px 24px;
}
.form-grid.cols-2 {
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 720px) {
  .form-grid.cols-2 {
    grid-template-columns: 1fr;
  }
}
.field label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 6px;
}
.field .hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}
.field-full {
  grid-column: 1 / -1;
}
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}
.split-span-2 {
  grid-column: 1 / -1;
}
.split-grid > .panel {
  border-top: none;
  padding: 0;
}
.split-grid > .panel.card {
  padding: 28px;
}
@media (max-width: 720px) {
  .split-grid {
    grid-template-columns: 1fr;
  }
}
.value.mono,
.mono {
  font-family: var(--mono);
}
.result-row .value.mono {
  word-break: break-all;
}

input[type='text'],
input[type='number'] {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  background: var(--surface);
  color: var(--text);
}
input[type='text']:focus,
input[type='number']:focus {
  outline: none;
  border-color: var(--text);
}

.result-list {
  border-top: 1px solid var(--line);
}
.card > .result-list:first-child {
  border-top: none;
}
.result-row:last-child {
  border-bottom: none;
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.result-row .label {
  color: var(--text-muted);
}
.result-row .value {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  text-align: right;
  font-family: var(--mono);
  font-size: 13px;
}
.result-row.total .value {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text);
}
.result-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}
.row.between {
  justify-content: space-between;
  margin-top: 16px;
}

button,
a.btn-ghost,
a.btn-primary,
a.btn-danger,
label.btn-primary,
label.btn-ghost {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  padding: 8px 14px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition:
    background 160ms var(--ease),
    color 160ms var(--ease),
    border-color 160ms var(--ease),
    transform 160ms var(--ease);
}
button:hover,
a.btn-ghost:hover,
label.btn-ghost:hover {
  border-color: #d5d5d5;
}
button:active,
a.btn-ghost:active,
a.btn-primary:active,
a.btn-danger:active,
label.btn-primary:active {
  transform: scale(0.98);
}
.btn-primary {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}
.btn-primary:hover {
  background: #333333;
  border-color: #333333;
}
.btn-ghost {
}
.btn-danger {
  color: var(--danger);
  background: var(--danger-bg);
  border-color: transparent;
}
.btn-danger:hover {
  border-color: transparent;
  background: #f8dfe1;
}
.btn-sm {
  padding: 6px 11px;
  font-size: 12px;
}

.meta {
  font-size: 13px;
  color: var(--text-muted);
}
.meta b {
  color: var(--text);
  font-weight: 600;
  font-family: var(--mono);
  font-size: 12px;
}

.error-box {
  display: none;
  margin-top: 14px;
  color: var(--danger);
  background: var(--danger-bg);
  border-radius: 6px;
  padding: 10px 12px;
  font-size: 13px;
}

.search-input {
  flex: 1 1 260px;
  min-width: 200px;
  padding: 8px 0;
  border: none;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  font-size: 16px;
  background: transparent;
  font-family: var(--serif);
  letter-spacing: -0.02em;
}
.search-input:focus {
  outline: none;
  border-bottom-color: var(--text);
}

.count-badge {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--pale-blue-text);
  background: var(--pale-blue);
  border-radius: 9999px;
  padding: 4px 9px;
  white-space: nowrap;
}

select.filter-select {
  padding: 7px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  font-size: 13px;
  background: var(--surface);
  color: var(--text);
  max-width: 220px;
}
select.filter-select:focus {
  outline: none;
  border-color: var(--text);
}
#filterChain {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-arrow {
  color: var(--text-muted);
  font-size: 12px;
}

.table-scroll {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  max-height: 62vh;
  margin-top: 8px;
  background: var(--surface);
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 13px;
}
thead th {
  position: sticky;
  top: 0;
  background: var(--surface);
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  z-index: 1;
}
thead th:first-child {
  width: 40px;
  color: var(--text-muted);
  font-weight: 500;
}
tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  max-width: 320px;
}
tbody tr {
  cursor: pointer;
}
tbody tr:hover {
  background: #f9f9f8;
}
td.idx-col {
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  font-family: var(--mono);
  font-size: 12px;
}
td.cell-value {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
td.cell-json {
  font-family: var(--mono);
  color: var(--text-muted);
}
mark {
  background: var(--mark-bg);
  color: var(--mark-text);
  border-radius: 2px;
  padding: 0 3px;
}
.empty-state {
  padding: 64px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

kbd {
  font-family: var(--mono);
  font-size: 11px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--bg);
  padding: 2px 6px;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(47, 52, 55, 0.28);
  align-items: center;
  justify-content: center;
  z-index: 50;
}
.modal-overlay.show {
  display: flex;
}
.modal-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  width: 380px;
  max-width: 90vw;
}
.modal-box h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.modal-box p {
  margin: 0 0 22px;
  font-size: 14px;
  color: var(--text-muted);
}
.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.modal-box.modal-json {
  width: 640px;
  max-height: 84vh;
  display: flex;
  flex-direction: column;
  padding: 28px;
}
.modal-json-pre {
  margin: 0 0 16px;
  overflow: auto;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px 16px;
  max-height: 60vh;
  white-space: pre-wrap;
  word-break: break-word;
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  display: none;
  z-index: 60;
}
.toast.show {
  display: block;
}

.choice-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.file-native {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.card.is-drop {
  outline: 1px dashed var(--text);
  outline-offset: 2px;
}
button.is-active {
  background: var(--text);
  color: #fff;
  border-color: var(--text);
}
.code-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}
.code-panel-head h2 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.15;
}
.code-wrap {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}
.code-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #f9f9f8;
  color: var(--text-muted);
  font-size: 12px;
  border-bottom: 1px solid var(--line);
}
.code-toolbar .filename {
  font-family: var(--mono);
  color: var(--text);
}
.code-block {
  margin: 0;
  padding: 18px 16px;
  overflow: auto;
  max-height: 62vh;
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  white-space: pre;
}
.tok-comment {
  color: var(--text-muted);
}
.tok-string {
  color: var(--pale-green-text);
}
.tok-keyword {
  color: var(--pale-blue-text);
}
.tok-key {
  color: var(--pale-yellow-text);
}
.tok-number {
  color: var(--danger);
}
.tok-flag {
  color: #5a5470;
}
.tok-var {
  color: var(--pale-blue-text);
}