:root {
  color-scheme: light;
  --paper: #f3efe4;
  --paper-strong: #fffaf0;
  --ink: #171512;
  --muted: #665f53;
  --line: #27211a;
  --oxide: #c4482d;
  --signal: #d6e04b;
  --blue: #1d6f8f;
  --green: #2f7d4b;
  --shadow: 0 18px 45px rgba(23, 21, 18, 0.16);
  --mono: "SFMono-Regular", "Cascadia Code", "Liberation Mono", monospace;
  --sans: "Avenir Next", "Segoe UI", sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    linear-gradient(90deg, rgba(23, 21, 18, 0.05) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(rgba(23, 21, 18, 0.045) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--paper);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper-strong);
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 4px 4px 0 var(--line);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

img {
  display: block;
  max-width: 100%;
}

[hidden] {
  display: none !important;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.masthead {
  min-height: 300px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background:
    radial-gradient(circle at 20% 20%, rgba(214, 224, 75, 0.35), transparent 28%),
    linear-gradient(135deg, rgba(196, 72, 45, 0.12), rgba(29, 111, 143, 0.1)),
    var(--paper-strong);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.masthead__copy {
  position: relative;
  max-width: 900px;
  padding: 34px;
}

.masthead__copy::after {
  content: "local first";
  position: absolute;
  right: 28px;
  bottom: 18px;
  border: 2px solid var(--line);
  padding: 7px 10px;
  color: var(--line);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  transform: rotate(-3deg);
}

.eyebrow,
.meta-strip,
.rail-heading small,
.api-card small,
.api-tab small,
.mode small,
.panel-heading small,
.meter-label,
.field span,
.option-grid span,
.policy-note span {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: 4rem;
  line-height: 0.95;
}

h2 {
  font-size: 1.45rem;
  line-height: 1;
}

.lede {
  max-width: 690px;
  margin: 22px 0 0;
  font-size: 1.1rem;
  line-height: 1.55;
}

.meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

.meta-strip span,
.meta-strip a {
  border: 1px solid rgba(23, 21, 18, 0.55);
  border-radius: 5px;
  padding: 7px 9px;
  background: rgba(255, 250, 240, 0.68);
}

.meta-strip a {
  background: var(--ink);
  color: var(--paper-strong);
  text-decoration: none;
}

.status-grid,
.api-board,
.lab-grid,
.reference-grid {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

.status-grid {
  grid-template-columns: 1.1fr 1fr 1fr;
}

.api-board {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.status-panel,
.meter-panel,
.api-card,
.mode-rail,
.workbench,
.result-panel,
.requirements,
.snippet-panel {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 250, 240, 0.88);
  box-shadow: 8px 8px 0 rgba(23, 21, 18, 0.12);
}

.status-panel,
.meter-panel {
  padding: 16px;
}

.api-card {
  display: grid;
  gap: 7px;
  min-height: 130px;
  padding: 14px;
  text-align: left;
}

.api-card span {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 900;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

.api-card strong {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1;
}

.api-card small {
  line-height: 1.32;
}

.api-card.is-active {
  background: var(--signal);
}

.status-line {
  display: flex;
  gap: 10px;
  align-items: center;
  font-family: var(--mono);
  font-weight: 900;
  text-transform: uppercase;
}

.status-panel p {
  min-height: 40px;
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.35;
}

.status-dot {
  width: 14px;
  height: 14px;
  border: 2px solid var(--line);
  border-radius: 50%;
  background: var(--blue);
}

.status-dot[data-tone="good"] {
  background: var(--green);
}

.status-dot[data-tone="warn"] {
  background: var(--signal);
}

.status-dot[data-tone="bad"] {
  background: var(--oxide);
}

.meter-label {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.meter {
  height: 14px;
  margin-top: 16px;
  border: 2px solid var(--line);
  border-radius: 4px;
  background: #e1d8c6;
  overflow: hidden;
}

.meter span {
  display: block;
  width: 0%;
  height: 100%;
  background: repeating-linear-gradient(
    -45deg,
    var(--blue) 0,
    var(--blue) 9px,
    var(--signal) 9px,
    var(--signal) 18px
  );
  transition: width 220ms ease;
}

.lab-grid {
  grid-template-columns: 250px minmax(0, 1fr) minmax(320px, 0.88fr);
  align-items: stretch;
}

.mode-rail {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
}

.rail-heading {
  min-height: 70px;
  border-bottom: 2px solid var(--line);
  padding-bottom: 12px;
}

.rail-heading span {
  display: block;
  font-family: var(--serif);
  font-size: 1.7rem;
  font-weight: 900;
}

.rail-heading small {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-weight: 800;
  text-transform: uppercase;
}

.api-switch,
.prompt-presets {
  display: grid;
  gap: 8px;
}

.api-switch {
  border-bottom: 2px solid var(--line);
  padding-bottom: 10px;
}

.api-tab {
  display: grid;
  gap: 2px;
  min-height: 58px;
  padding: 10px;
  text-align: left;
}

.api-tab span {
  font-weight: 950;
}

.api-tab small {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 800;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

.api-tab.is-active {
  background: var(--ink);
  color: var(--paper-strong);
}

.api-tab.is-active small {
  color: var(--signal);
}

.mode {
  display: grid;
  gap: 2px;
  min-height: 62px;
  padding: 10px;
  text-align: left;
}

.mode span {
  font-weight: 900;
}

.mode small {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.mode.is-active {
  background: var(--signal);
}

.policy-note {
  margin-top: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  background: #efe4cc;
}

.policy-note strong,
.policy-note span {
  display: block;
}

.policy-note strong {
  margin-bottom: 6px;
}

.policy-note span {
  line-height: 1.35;
}

.workbench,
.result-panel {
  min-height: 560px;
}

.workbench {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px;
}

.toolbar,
.panel-heading,
.run-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toolbar__actions,
.run-row {
  flex-wrap: wrap;
}

.toolbar__actions {
  display: flex;
  gap: 8px;
}

.toolbar__actions button,
.run-row button {
  padding: 0 14px;
}

.schema-pill {
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 8px 10px;
  background: var(--ink);
  color: var(--paper-strong);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
  background: #efe4cc;
}

.option-grid--compact {
  grid-template-columns: minmax(0, 1fr);
}

.option-grid label {
  display: grid;
  gap: 6px;
}

.option-grid span {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 900;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

.option-grid select,
.option-grid input {
  width: 100%;
  min-height: 40px;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: #fffdf6;
  color: var(--ink);
  font-weight: 800;
  outline: none;
}

.option-grid select:focus,
.option-grid input:focus {
  box-shadow: 0 0 0 3px rgba(214, 224, 75, 0.85);
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.field input,
.option-grid input,
.option-grid select,
.field textarea {
  width: 100%;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: #fffdf6;
  color: var(--ink);
  outline: none;
}

.field input {
  height: 48px;
  padding: 0 13px;
}

.field textarea {
  min-height: 254px;
  resize: vertical;
  padding: 13px;
  line-height: 1.5;
}

.field input:focus,
.field textarea:focus {
  box-shadow: 0 0 0 3px rgba(214, 224, 75, 0.85);
}

.primary-button {
  min-width: 180px;
  background: var(--oxide);
  color: #fffaf0;
}

.result-panel {
  display: grid;
  grid-template-rows: auto 1fr;
  padding: 16px;
}

.panel-heading {
  min-height: 44px;
  border-bottom: 2px solid var(--line);
  font-family: var(--mono);
  font-weight: 900;
  text-transform: uppercase;
}

.panel-heading small {
  color: var(--oxide);
}

#output,
#snippet {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  line-height: 1.52;
}

#output {
  min-height: 420px;
  padding-top: 16px;
  font-size: 0.92rem;
}

.reference-grid {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.requirements,
.snippet-panel {
  padding: 18px;
}

.requirements ul {
  margin: 16px 0 0;
  padding-left: 20px;
  line-height: 1.55;
}

.requirements li + li {
  margin-top: 8px;
}

.flag-block {
  margin-top: 20px;
  border-top: 1px solid rgba(36, 33, 28, 0.14);
  padding-top: 18px;
}

.flag-block h3 {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.flag-list {
  display: grid;
  gap: 8px;
}

.flag-list code {
  display: block;
  overflow-wrap: anywhere;
  border: 1px solid rgba(36, 33, 28, 0.14);
  border-radius: 6px;
  background: #fff7e8;
  padding: 8px 10px;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.76rem;
  line-height: 1.35;
}

.flag-block p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.snippet-panel {
  background: var(--ink);
  color: var(--paper-strong);
}

.snippet-panel h2 {
  color: var(--signal);
}

#snippet {
  margin-top: 16px;
  font-size: 0.82rem;
  color: #f8f2e5;
}

@media (max-width: 980px) {
  .masthead,
  .status-grid,
  .api-board,
  .lab-grid,
  .reference-grid {
    grid-template-columns: 1fr;
  }

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

  .mode-rail {
    display: grid;
    grid-template-columns: repeat(3, minmax(130px, 1fr));
    overflow-x: auto;
  }

  .rail-heading,
  .api-switch,
  .prompt-presets,
  .policy-note {
    grid-column: 1 / -1;
  }

  .api-switch,
  .prompt-presets {
    grid-template-columns: repeat(4, minmax(120px, 1fr));
  }

  .prompt-presets {
    grid-template-columns: repeat(4, minmax(110px, 1fr));
  }

  .workbench,
  .result-panel {
    min-height: auto;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 18px, 1180px);
    padding-top: 9px;
  }

  .masthead__copy {
    padding: 22px;
  }

  .masthead__copy::after {
    position: static;
    display: inline-block;
    margin-top: 18px;
  }

  h1 {
    font-size: 2.35rem;
  }

  .lede {
    font-size: 1rem;
  }

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

  .api-switch,
  .prompt-presets,
  .api-board,
  .option-grid {
    grid-template-columns: 1fr 1fr;
  }

  .option-grid--compact {
    grid-template-columns: 1fr;
  }

  .toolbar,
  .panel-heading,
  .run-row {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar__actions,
  .run-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .toolbar__actions button,
  .run-row button {
    width: 100%;
  }

  .primary-button {
    grid-column: 1 / -1;
  }
}