:root {
  --page-bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #f8fafb;
  --text: #17202a;
  --muted: #5c6875;
  --line: #d6dde4;
  --neutral-dark: #263442;
  --shadow: 0 12px 34px rgba(23, 32, 42, 0.08);
  --radius: 14px;
  --mono: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body[data-source-profile="es"] {
  --profile: #7a2343;
  --profile-dark: #5d1731;
  --profile-soft: #fff2f6;
  --profile-soft-2: #fae2ea;
  --profile-line: #dca5b7;
}

body[data-source-profile="en"] {
  --profile: #235d91;
  --profile-dark: #17466f;
  --profile-soft: #eef7ff;
  --profile-soft-2: #dceeff;
  --profile-line: #9fc4e4;
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(180deg, var(--profile-soft) 0, var(--page-bg) 190px, var(--page-bg) 100%);
  font-family: var(--sans);
  line-height: 1.5;
  transition: background-color 160ms ease, background 160ms ease;
}

button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--profile-line);
  outline-offset: 2px;
}

.site-header {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 30px 18px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.eyebrow, .panel-kicker, .profile-kicker {
  margin: 0 0 4px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--profile);
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 5px; font-size: clamp(1.75rem, 3vw, 2.45rem); line-height: 1.12; }
h2 { margin-bottom: 0; font-size: 1.1rem; }
.subtitle { margin-bottom: 0; color: var(--muted); }

.top-links { display: flex; flex-wrap: wrap; gap: 10px; }
.top-links a {
  color: var(--neutral-dark);
  background: rgba(255,255,255,.8);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 13px;
  text-decoration: none;
  font-weight: 650;
}
.top-links a:hover { border-color: var(--profile-line); color: var(--profile-dark); }

.experimental-notice {
  max-width: 1380px;
  margin: 0 auto 18px;
  padding: 10px 14px;
  border: 1px solid #c9a54c;
  border-radius: 10px;
  color: #5d4914;
  background: #fff9e7;
  font-size: .9rem;
}
.experimental-notice strong { margin-right: 5px; }

main { max-width: 1440px; margin: 0 auto; padding: 0 30px 36px; }

.control-panel {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.control-group { display: flex; align-items: center; gap: 11px; }
.control-label { font-weight: 760; font-size: .9rem; }
.segmented {
  display: inline-flex;
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-2);
}
.segmented button {
  border: 0;
  border-radius: 7px;
  padding: 7px 11px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-weight: 680;
}
.segmented button[aria-pressed="true"] {
  background: var(--neutral-dark);
  color: #fff;
}
.profile-segmented button[aria-pressed="true"] {
  background: var(--profile);
}

.profile-banner {
  margin: 16px 0;
  padding: 15px 18px;
  display: grid;
  grid-template-columns: minmax(190px, auto) 1fr;
  gap: 18px;
  align-items: center;
  border: 2px solid var(--profile-line);
  border-radius: var(--radius);
  background: var(--profile-soft);
}
.profile-banner strong { display: block; color: var(--profile-dark); font-size: 1.12rem; letter-spacing: .03em; }
.profile-banner p { margin: 0; color: #3f4b57; }

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(300px, .85fr);
  gap: 18px;
  align-items: start;
}
.editor-column { min-width: 0; display: grid; gap: 18px; }
.editor-shell, .result-shell, .examples-panel, .architecture-note, .build-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.editor-shell, .examples-panel {
  border-top: 5px solid var(--profile);
  transition: border-color 160ms ease, background-color 160ms ease;
}
.editor-shell { padding: 18px; }
.examples-panel { padding: 18px; position: sticky; top: 12px; background: linear-gradient(180deg, var(--profile-soft) 0, #fff 150px); }
.result-shell { padding: 18px; }

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}
.profile-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border-radius: 999px;
  color: #fff;
  background: var(--profile);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .03em;
}

.file-row {
  display: grid;
  grid-template-columns: auto minmax(140px, 1fr) auto;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
}
.file-row label { font-weight: 700; font-size: .86rem; color: var(--muted); }
.file-row input {
  min-width: 0;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  font-family: var(--mono);
}

#source-editor {
  display: block;
  width: 100%;
  min-height: 430px;
  resize: vertical;
  border: 1px solid var(--profile-line);
  border-left: 7px solid var(--profile);
  border-radius: 10px;
  padding: 15px 16px;
  color: #111820;
  background: #fbfcfd;
  font: 14px/1.55 var(--mono);
  tab-size: 4;
  white-space: pre;
  overflow: auto;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}
#source-editor:focus { box-shadow: inset 0 0 0 1px var(--profile-line); }

.source-metadata {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 9px;
  color: var(--muted);
  font-size: .78rem;
}
.source-metadata code { font-family: var(--mono); word-break: break-all; color: #36414d; }

.editor-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 14px; }
button.primary, button.secondary {
  border-radius: 9px;
  padding: 9px 14px;
  cursor: pointer;
  font-weight: 730;
}
button.primary { border: 1px solid var(--profile-dark); background: var(--profile); color: #fff; }
button.primary:hover { background: var(--profile-dark); }
button.secondary { border: 1px solid var(--line); background: #fff; color: var(--neutral-dark); }
button.secondary:hover { border-color: var(--profile-line); }

.status-line { min-height: 1.35em; margin: 10px 0 0; color: var(--muted); font-size: .84rem; }

.result-state {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  background: #eef1f3;
  color: #56616d;
  font-size: .78rem;
  font-weight: 750;
}
.result-state[data-state="pass"] { color: #185c37; background: #e9f8ef; }
.result-state[data-state="fail"] { color: #7d2323; background: #fdecec; }
.result-state[data-state="running"] { color: #705512; background: #fff7dc; }
#result-output {
  min-height: 180px;
  max-height: 480px;
  overflow: auto;
  margin: 0;
  padding: 14px;
  border-radius: 9px;
  background: #10161d;
  color: #e7eef5;
  font: 13px/1.5 var(--mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.examples-help { margin-bottom: 13px; color: var(--muted); font-size: .86rem; }
.examples-list { display: grid; gap: 9px; }
.example-card {
  padding: 11px;
  border: 1px solid var(--profile-line);
  border-radius: 10px;
  background: rgba(255,255,255,.88);
}
.example-card h3 { margin: 0 0 4px; font-size: .96rem; }
.example-card p { margin-bottom: 9px; color: var(--muted); font-size: .8rem; }
.example-card button { width: 100%; }

.architecture-note, .build-panel { margin-top: 18px; padding: 19px; }
.architecture-note > p { margin: 16px 0 0; color: var(--muted); max-width: 1050px; }
.architecture-flow {
  margin-top: 15px;
  display: grid;
  grid-template-columns: minmax(140px, 1fr) auto minmax(190px, 1.3fr) auto minmax(180px, 1.2fr);
  gap: 10px;
  align-items: stretch;
}
.architecture-flow > div:not(.flow-arrow) {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
}
.architecture-flow strong, .architecture-flow span { display: block; }
.architecture-flow span { margin-top: 3px; color: var(--muted); font-size: .8rem; }
.flow-arrow { align-self: center; color: var(--profile); font-size: 1.4rem; font-weight: 900; }
.second-flow { margin-top: 8px; }

.build-panel dl { margin: 14px 0 0; display: grid; gap: 8px; }
.build-panel dl div { display: grid; grid-template-columns: minmax(150px, .32fr) 1fr; gap: 12px; border-top: 1px solid #edf0f2; padding-top: 8px; }
.build-panel dt { color: var(--muted); font-size: .86rem; }
.build-panel dd { margin: 0; min-width: 0; }
.build-panel code { font-family: var(--mono); word-break: break-all; }

footer {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 30px 36px;
  color: var(--muted);
  font-size: .82rem;
}
footer p { border-top: 1px solid var(--line); padding-top: 14px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 980px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .workspace { grid-template-columns: 1fr; }
  .examples-panel { position: static; }
  .profile-banner { grid-template-columns: 1fr; gap: 7px; }
  .architecture-flow { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); justify-self: center; }
}

@media (max-width: 620px) {
  .site-header, main, footer { padding-left: 16px; padding-right: 16px; }
  .experimental-notice { margin-left: 16px; margin-right: 16px; }
  .control-group { align-items: flex-start; flex-direction: column; width: 100%; }
  .segmented { width: 100%; }
  .segmented button { flex: 1; }
  .file-row { grid-template-columns: 1fr; }
  #source-editor { min-height: 360px; }
  .build-panel dl div { grid-template-columns: 1fr; gap: 2px; }
}