/* ============================================================================
   FLORIDA HOMES IN 2050 — design tokens + layout
   Palette: deep marine ink, aqua (water/tech), hibiscus (heat/CTA), warm paper.
   Type: Fraunces (display serif) / Plus Jakarta Sans (body) / IBM Plex Mono (labels).
   ============================================================================ */

:root {
  /* Color */
  --ink: #0b1e1f;
  --ink-mist: #142e30;
  --paper: #efefe7;
  --paper-dim: #cfcdc0;
  --aqua: #33c9b0;
  --aqua-dim: #1f8f7c;
  --hibiscus: #ff5c72;
  --sand: #9a9686;
  --line: rgba(239, 239, 231, 0.14);

  /* Type */
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  /* Layout */
  --content-max: 640px;
  --gutter: 20px;
  --nav-height: 64px;
  --radius: 2px;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.55;
  padding-bottom: calc(var(--nav-height) + 24px);
  -webkit-font-smoothing: antialiased;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--aqua);
  color: var(--ink);
  padding: 10px 16px;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 13px;
}
.skip-link:focus {
  left: var(--gutter);
  top: var(--gutter);
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: 3px;
}

/* ---------------------------------------------------------------------------
   Ad blocks
--------------------------------------------------------------------------- */
.ad-block {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 12px var(--gutter);
}
.ad-block--top { padding-top: 14px; padding-bottom: 6px; }
.ad-block--in-content { padding: 24px var(--gutter); }

.ad-block__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sand);
  margin-bottom: 8px;
}

.ad-placeholder {
  border: 1px dashed rgba(239, 239, 231, 0.25);
  border-radius: var(--radius);
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(239, 239, 231, 0.03);
}
.ad-placeholder__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--paper-dim);
}

.ad-native { min-height: 90px; }

/* ---------------------------------------------------------------------------
   Series header (eyebrow + counter)
--------------------------------------------------------------------------- */
.series-header {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 10px var(--gutter) 4px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.series-header__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--aqua);
}
.series-header__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

/* ---------------------------------------------------------------------------
   Hero image — blueprint corner-bracket framing (signature element)
--------------------------------------------------------------------------- */
.slide__hero {
  margin: 14px var(--gutter) 0;
}
.slide__hero-frame {
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--ink-mist);
}
.slide__hero-frame::before,
.slide__hero-frame::after,
.slide__hero-frame > .corner-tl,
.slide__hero-frame > .corner-br {
  content: "";
}
.slide__hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.slide__hero-frame::before {
  position: absolute;
  top: 10px;
  left: 10px;
  width: 18px;
  height: 18px;
  border-top: 2px solid rgba(239, 239, 231, 0.8);
  border-left: 2px solid rgba(239, 239, 231, 0.8);
  z-index: 2;
}
.slide__hero-frame::after {
  position: absolute;
  bottom: 10px;
  right: 10px;
  width: 18px;
  height: 18px;
  border-bottom: 2px solid rgba(239, 239, 231, 0.8);
  border-right: 2px solid rgba(239, 239, 231, 0.8);
  z-index: 2;
}

/* ---------------------------------------------------------------------------
   Slide content
--------------------------------------------------------------------------- */
.slide__content {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 22px var(--gutter) 8px;
}

.slide__eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--hibiscus);
}

.slide__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 7vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.slide__caption {
  margin: 0 0 26px;
  font-size: 17px;
  color: rgba(239, 239, 231, 0.86);
}

.slide__section {
  margin: 0 0 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.slide__section-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--aqua);
}

.slide__section p {
  margin: 0;
  font-size: 16px;
  color: rgba(239, 239, 231, 0.78);
}

.slide__features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.slide__features li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  color: rgba(239, 239, 231, 0.86);
}
.slide__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background: var(--aqua);
  border-radius: 1px;
}

.slide__teaser {
  margin: 4px 0 8px;
  padding: 18px var(--gutter);
  margin-left: calc(var(--gutter) * -1);
  margin-right: calc(var(--gutter) * -1);
  background: var(--ink-mist);
  border-left: 2px solid var(--hibiscus);
}
.slide__teaser p {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

/* ---------------------------------------------------------------------------
   Finale (slide 15 only)
--------------------------------------------------------------------------- */
.finale {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.finale__line {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  color: var(--paper);
}
.finale__question {
  margin: 0 0 18px;
  color: var(--paper-dim);
  font-size: 15px;
}
.finale__share {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--aqua);
  border: none;
  border-radius: var(--radius);
  padding: 12px 22px;
  cursor: pointer;
}
.finale__share:hover { background: #45d6bc; }

/* ---------------------------------------------------------------------------
   Sticky navigation
--------------------------------------------------------------------------- */
.sticky-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 var(--gutter);
  background: rgba(11, 30, 31, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  z-index: 50;
}

.sticky-nav__progress {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--sand);
  letter-spacing: 0.08em;
}

.nav-btn {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
}

.nav-btn--back {
  color: var(--paper);
  border-color: var(--line);
  background: transparent;
}
.nav-btn--back:hover { border-color: var(--paper-dim); }

.nav-btn--disabled {
  color: rgba(239, 239, 231, 0.28);
  border: 1px solid rgba(239, 239, 231, 0.08);
}

.nav-btn--next {
  color: var(--ink);
  background: var(--aqua);
}
.nav-btn--next:hover { background: #45d6bc; }

.nav-btn--restart {
  color: var(--ink);
  background: var(--hibiscus);
}
.nav-btn--restart:hover { background: #ff7085; }

/* ---------------------------------------------------------------------------
   Responsive
--------------------------------------------------------------------------- */
@media (min-width: 560px) {
  :root { --gutter: 28px; }
  .slide__title { font-size: 42px; }
}

@media (min-width: 820px) {
  :root { --content-max: 720px; --gutter: 0; }
  body { padding-left: 0; }
  .series-header,
  .slide__content,
  .ad-block {
    padding-left: 0;
    padding-right: 0;
  }
  .slide__hero { margin-left: auto; margin-right: auto; max-width: var(--content-max); }
  .slide__teaser {
    margin-left: 0;
    margin-right: 0;
    padding-left: 24px;
    padding-right: 24px;
    border-radius: var(--radius);
  }
  .sticky-nav { padding: 0 calc((100vw - 720px) / 2); }
}

@media (min-width: 1080px) {
  :root { --content-max: 760px; }
}