:root {
  color-scheme: dark;
  --bg: #111814;
  --panel: #17211c;
  --panel-strong: #202d26;
  --ink: #eef7f1;
  --muted: #9fb0a6;
  --line: #304339;
  --accent: #f2c94c;
  --accent-ink: #1c1705;
  --good: #6bd39a;
  --bad: #ff7f6e;
  --code: #0b100d;
  --focus: #80d6ff;
  --shadow: 0 18px 52px rgba(0, 0, 0, 0.28);
  font-family:
    "Aptos", "Segoe UI", "Helvetica Neue", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px) 0 0 / 36px 36px,
    var(--bg);
}

body {
  margin: 0;
  color: var(--ink);
}

button,
textarea {
  font: inherit;
}

button,
summary,
a,
textarea,
pre[tabindex] {
  outline: none;
}

button:focus-visible,
summary:focus-visible,
a:focus-visible,
textarea:focus-visible,
pre[tabindex]:focus-visible {
  box-shadow: 0 0 0 3px var(--focus);
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 24px;
}

.workbench {
  min-height: calc(100vh - 56px);
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 18px;
}

.masthead,
.workspace,
.usage,
.site-footer {
  border: 1px solid var(--line);
  background: rgba(17, 24, 20, 0.86);
  box-shadow: var(--shadow);
}

.masthead {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 4.7rem;
  line-height: 0.95;
  overflow-wrap: anywhere;
}

h2 {
  font-size: 1rem;
}

h3 {
  font-size: 0.86rem;
}

.status,
.field-note {
  color: var(--muted);
  font-size: 0.86rem;
}

.status {
  flex: 0 0 auto;
  max-width: 24rem;
  padding: 8px 11px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(0, 0.97fr);
  min-height: 0;
}

.input-pane,
.output-pane {
  min-width: 0;
  padding: 18px;
}

.input-pane {
  border-right: 1px solid var(--line);
}

.pane-heading,
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 13px;
}

.section-heading {
  align-items: end;
}

.field-label {
  display: block;
  margin: 12px 0 7px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

textarea {
  display: block;
  width: 100%;
  min-height: 9.5rem;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 12px;
  color: var(--ink);
  background: var(--code);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

#headers-input {
  min-height: 7.5rem;
}

button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 0.55rem 0.72rem;
  color: var(--ink);
  background: var(--panel-strong);
  cursor: pointer;
}

button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.ghost-button {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 800;
}

.ghost-button:hover {
  color: var(--accent-ink);
  filter: brightness(1.06);
}

.preset-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.advanced {
  margin-top: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.advanced summary {
  cursor: pointer;
  padding: 12px;
  color: var(--ink);
  font-weight: 800;
}

.advanced textarea,
.advanced .field-label,
.advanced .field-note {
  width: calc(100% - 24px);
  margin-left: 12px;
  margin-right: 12px;
}

.advanced .field-note {
  margin-bottom: 12px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.summary-item {
  min-width: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 10px;
}

.summary-key {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.summary-value {
  display: block;
  margin-top: 5px;
  overflow-wrap: anywhere;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.9rem;
}

.flags-panel {
  margin-top: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 11px;
}

.flag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  min-height: 2.2rem;
  margin-top: 10px;
}

.flag {
  border: 1px solid rgba(107, 211, 154, 0.55);
  padding: 0.35rem 0.48rem;
  color: var(--good);
  background: rgba(107, 211, 154, 0.08);
  font-size: 0.78rem;
  font-weight: 800;
}

.empty-flags {
  color: var(--muted);
  font-size: 0.86rem;
}

.json-wrap,
.snippet pre {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--code);
  color: var(--ink);
  overflow: auto;
}

.json-wrap {
  max-height: 24rem;
  padding: 12px;
}

code {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.84rem;
  line-height: 1.55;
  white-space: pre;
}

.usage {
  margin-top: 24px;
  padding: 18px;
}

.snippet-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.snippet {
  min-width: 0;
}

.snippet h3 {
  margin-bottom: 8px;
}

.snippet pre {
  min-height: 11rem;
  padding: 12px;
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto 28px;
  padding: 14px 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 800;
}

.site-footer a:hover {
  text-decoration: underline;
}

.is-error {
  color: var(--bad);
}

@media (max-width: 920px) {
  .workbench {
    min-height: auto;
  }

  .masthead,
  .workspace,
  .pane-heading,
  .section-heading {
    display: block;
  }

  .status,
  .ghost-button {
    margin-top: 12px;
  }

  .workspace,
  .snippet-grid {
    grid-template-columns: 1fr;
  }

  .input-pane {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .preset-grid,
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  h1 {
    font-size: 3.1rem;
  }
}

@media (max-width: 560px) {
  .shell,
  .site-footer {
    width: min(100% - 20px, 1180px);
  }

  .shell {
    padding-top: 10px;
  }

  .masthead,
  .input-pane,
  .output-pane,
  .usage {
    padding: 12px;
  }

  .preset-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  button {
    width: 100%;
  }

  code {
    font-size: 0.78rem;
  }

  h1 {
    font-size: 2.25rem;
  }
}