/* sdk.jbf.com · Franzen app standard tokens */

:root {
  --font-ui: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;

  --color-red-cross: #d8001b;
  --color-red-dark: #9f0014;
  --color-red-pressed: #79000f;
  --color-red-soft: #fff0f2;
  --color-ink: #20242b;
  --color-ink-strong: #111318;
  --color-muted: #69717d;
  --color-subtle: #8b95a1;
  --color-line: #dfe3e8;
  --color-canvas: #f5f6f7;
  --color-surface: #ffffff;
  --color-surface-raised: #f9fafb;
  --color-code-bg: #14181f;
  --color-code-ink: #d7dde5;

  --radius-control: 6px;
  --radius-panel: 8px;
  --shadow-panel: 0 10px 30px rgba(31, 41, 55, 0.08);

  --rail-width: 264px;
  --content-max: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.6;
  font-size: 16px;
}

a { color: var(--color-red-dark); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--color-red-cross); }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-surface-raised);
  border: 1px solid var(--color-line);
  border-radius: 4px;
  padding: 1px 5px;
}

/* ---------- Left rail ---------- */

.rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--rail-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
  z-index: 40;
  transition: transform 0.25s ease;
}
body.rail-collapsed .rail { transform: translateX(-100%); }

.rail-brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 20px 20px 14px;
  border-bottom: 1px solid var(--color-line);
}
.rail-brand-mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 14px;
  color: #ffffff;
  background: var(--color-red-cross);
  border-radius: 4px;
  padding: 3px 7px;
}
.rail-brand-name { font-weight: 700; font-size: 14px; color: var(--color-ink-strong); }
.rail-collapse {
  margin-left: auto;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-muted);
  border-radius: 4px;
  width: 24px;
  height: 24px;
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  align-self: center;
}
.rail-collapse:hover { color: var(--color-ink-strong); border-color: var(--color-subtle); }

.rail-list {
  list-style: none;
  margin: 0;
  padding: 12px 10px;
  overflow-y: auto;
  flex: 1;
}
.rail-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-control);
  color: var(--color-ink);
  text-decoration: none;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.rail-link:hover { background: var(--color-surface-raised); color: var(--color-ink-strong); }
.rail-link.active {
  border-left-color: var(--color-red-cross);
  background: var(--color-red-soft);
  color: var(--color-ink-strong);
  font-weight: 600;
}
.rail-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-subtle);
  width: 20px;
  flex: none;
}
.rail-link.active .rail-num { color: var(--color-red-dark); }

.rail-foot { padding: 14px 20px; border-top: 1px solid var(--color-line); }
.rail-foot-link { font-family: var(--font-mono); font-size: 12px; color: var(--color-muted); text-decoration: none; }
.rail-foot-link:hover { color: var(--color-red-dark); }

.rail-grip {
  position: absolute;
  top: 0;
  right: -3px;
  width: 6px;
  height: 100%;
  cursor: col-resize;
}
.rail-grip:hover { background: rgba(216, 0, 27, 0.15); }

.rail-toggle {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 50;
  width: 38px;
  height: 38px;
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-control);
  cursor: pointer;
  box-shadow: var(--shadow-panel);
}
.rail-toggle-bar { width: 16px; height: 2px; background: var(--color-ink); }
body.rail-collapsed .rail-toggle { display: flex; }

/* ---------- Content column ---------- */

.content { margin-left: var(--rail-width); transition: margin-left 0.25s ease; }
body.rail-collapsed .content { margin-left: 0; }

.section {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 88px 48px 40px;
}
.section-last { padding-bottom: 96px; }

.section-title {
  font-size: 34px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-ink-strong);
  margin: 0 0 18px;
}
.section-lede {
  font-size: 18px;
  color: var(--color-muted);
  max-width: 62ch;
  margin: 0 0 30px;
}
.prose p { max-width: 68ch; margin: 0 0 18px; }
.prose strong { color: var(--color-ink-strong); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  height: 100dvh;
  min-height: 560px;
  background: var(--color-code-bg);
}
.hero-map { position: absolute; inset: 0; display: block; background: var(--color-code-bg); }
.hero-map .esri-view-surface { background: var(--color-code-bg); }
.hero-map .esri-view { background: var(--color-code-bg); }

.hero-panel {
  position: absolute;
  left: 40px;
  bottom: 44px;
  max-width: 460px;
  background: rgba(17, 19, 24, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-panel);
  padding: 26px 28px;
  z-index: 5;
}
.hero-title {
  margin: 0 0 10px;
  font-size: 34px;
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #ffffff;
}
.hero-sub { margin: 0 0 18px; font-size: 16px; color: #c3cad3; }
.hero-ctas { display: flex; gap: 10px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 16px;
  border-radius: var(--radius-control);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: var(--color-red-cross); color: #ffffff; }
.btn-primary:hover { background: var(--color-red-dark); color: #ffffff; }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost { background: transparent; color: #ffffff; border-color: rgba(255, 255, 255, 0.4); }
.btn-ghost:hover { border-color: #ffffff; background: rgba(255, 255, 255, 0.08); }

.hero-code {
  position: absolute;
  left: 40px;
  right: 40px;
  bottom: 44px;
  max-height: 62vh;
  overflow: auto;
  background: var(--color-code-bg);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-panel);
  z-index: 7;
}
/* ---------- Code blocks ---------- */

pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  background: var(--color-code-bg);
  color: var(--color-code-ink);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.55;
}
pre code { background: none; border: 0; padding: 0; font-size: inherit; color: inherit; }

.code-head, .hero-code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  background: #1b2029;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-panel) var(--radius-panel) 0 0;
}
.code-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #9aa4b0;
}
.code-copy {
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: none;
  color: #d7dde5;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 4px;
  cursor: pointer;
}
.code-copy:hover { border-color: #ffffff; }
.code-copy.copied { color: #7fd992; border-color: #7fd992; }
.hero-code-actions { display: inline-flex; gap: 8px; }

/* ---------- Demo splits ---------- */

.demo-split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 24px;
  align-items: stretch;
}
.demo-split-flip { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
.demo-split-flip .demo-code { order: 2; }
.demo-split-flip .demo-live { order: 1; }

.demo-code {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-panel);
  overflow: hidden;
  border: 1px solid var(--color-line);
}
.demo-code pre { flex: 1; }
.demo-caption {
  margin: 0;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-muted);
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
}

.demo-live {
  min-height: 440px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--color-surface);
  position: relative;
}
.demo-live arcgis-map { position: absolute; inset: 0; display: block; }

.demo-live-with-card arcgis-map { inset: 0 0 118px 0; }
.answer-card {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 118px;
  background: var(--color-surface);
  border-top: 3px solid var(--color-red-cross);
  padding: 12px 18px;
  overflow: auto;
}
.answer-card h3 { margin: 0 0 4px; font-size: 15px; color: var(--color-ink-strong); }
.answer-card p { margin: 0 0 2px; font-size: 13px; color: var(--color-muted); }
.answer-card-hint { font-size: 13px; color: var(--color-subtle); margin: 0; }

/* ---------- Triptych (section 02) ---------- */

.triptych {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 16px;
  margin-top: 34px;
}
.triptych-cell {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  padding: 20px 22px;
}
.triptych-cell-accent { border-top: 3px solid var(--color-red-cross); }
.triptych-title { margin: 0 0 8px; font-size: 16px; color: var(--color-ink-strong); }
.triptych-cell p { margin: 0; font-size: 14px; color: var(--color-muted); }

/* ---------- Compare (section 06) ---------- */

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 30px;
}
.compare-col {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  padding: 22px 24px;
}
.compare-col-accent { border-top: 3px solid var(--color-red-cross); }
.compare-title { margin: 0 0 12px; font-size: 17px; color: var(--color-ink-strong); }
.compare-list { margin: 0; padding-left: 18px; }
.compare-list li { margin-bottom: 10px; font-size: 15px; }

/* ---------- Film ---------- */

.film-frame {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--color-code-bg);
  max-width: 960px;
}
.film-frame video { display: block; width: 100%; height: auto; }

/* ---------- Showcase panels (section 06) ---------- */

.possible-panel {
  position: relative;
  height: 560px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--color-code-bg);
  margin-top: 26px;
}
.possible-panel arcgis-scene,
.possible-panel arcgis-map { position: absolute; inset: 0; display: block; }

.panel-overlay {
  position: absolute;
  left: 20px;
  bottom: 20px;
  max-width: 440px;
  background: rgba(17, 19, 24, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-panel);
  padding: 16px 20px;
  z-index: 5;
  pointer-events: none;
}
.panel-title { margin: 0 0 6px; font-size: 19px; color: #ffffff; }
.panel-sub { margin: 0; font-size: 14px; color: #c3cad3; }

.code-reveal { margin-top: 10px; }

.demo-note {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8;
  margin: 0;
  padding: 6px 14px;
  background: rgba(17, 19, 24, 0.9);
  color: #e6eaef;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  font-size: 13px;
  white-space: nowrap;
  max-width: 92%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.code-reveal-body {
  margin-top: 10px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  overflow: hidden;
}
.btn-line {
  background: var(--color-surface);
  color: var(--color-ink-strong);
  border: 1px solid var(--color-line);
}
.btn-line:hover { border-color: var(--color-red-cross); color: var(--color-red-dark); }

/* ---------- Full-width demo (section 05) ---------- */

.demo-live-wide { min-height: 520px; }
.demo-full .answer-card { height: 96px; }
.demo-full .demo-live-with-card arcgis-map { inset: 0 0 96px 0; }

/* ---------- Start steps ---------- */

.start-steps {
  list-style: none;
  counter-reset: step;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  max-width: 760px;
}
.start-step {
  counter-increment: step;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-panel);
  padding: 20px 22px 20px 66px;
  position: relative;
}
.start-step::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 22px;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-red-dark);
}
.start-step-title { margin: 0 0 6px; font-size: 16px; color: var(--color-ink-strong); }
.start-step p { margin: 0; font-size: 15px; }

/* ---------- Footer ---------- */

.foot {
  border-top: 1px solid var(--color-line);
  padding: 26px 48px;
  max-width: var(--content-max);
  margin: 0 auto;
}
.foot p { margin: 0; font-size: 13px; color: var(--color-muted); max-width: 68ch; }

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .demo-split, .demo-split-flip { grid-template-columns: 1fr; }
  .demo-split-flip .demo-code { order: 1; }
  .demo-split-flip .demo-live { order: 2; }
  .triptych { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .rail { transform: translateX(-100%); }
  body.rail-open .rail { transform: translateX(0); box-shadow: var(--shadow-panel); }
  .content { margin-left: 0; }
  .rail-toggle { display: flex; }
  .rail-grip { display: none; }

  .rail-toggle { width: 44px; height: 44px; }
  .section { padding: 64px 20px 28px; }
  .section-title { font-size: 26px; }
  .compare-grid { grid-template-columns: 1fr; }

  .hero-panel { left: 14px; right: 14px; bottom: 20px; max-width: none; padding: 20px; }
  .hero-title { font-size: 25px; }
  .hero-code { left: 14px; right: 14px; bottom: 20px; }
  .demo-live { min-height: 380px; }
  .possible-panel { height: 440px; }
  .panel-overlay { left: 12px; right: 12px; bottom: 12px; max-width: none; }
}