/* ============================================================================
   chooser.css  —  root-level chooser page only
   ----------------------------------------------------------------------------
   Isolated from V1/V2/V3 design systems. Uses Prospero brand tokens directly
   (brand manual, resources/Prospero Brand Manual.pdf, 06 April 2021):

     Main brand red:        #E42C2F
     Primary background:    #000000
     Primary bg light:      #EEEEEE
     Messina Sans           (proprietary — we substitute Inter as a close match)

   The chooser is deliberately restrained so it doesn't prejudice comparison
   between the versions. It renders the active version (V1) with full brand
   treatment; in-progress versions are presented as placeholders so the user
   can see at a glance what's built and what isn't.
============================================================================ */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("/versions/v1-iteration-fixes/assets/fonts/inter-variable.woff2") format("woff2-variations");
}

:root {
  --brand-red:      #E42C2F;
  --brand-red-hov:  #c0262a;
  --brand-black:    #000000;
  --brand-white:    #ffffff;
  --brand-grey:     #eeeeee;
  --brand-mute:     #2a2a2a;
  --brand-border:   #2a2a2a;
  --brand-mute-fg:  rgba(255,255,255,0.65);
  --brand-mute-fg2: rgba(255,255,255,0.45);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--brand-black);
  color: var(--brand-white);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  display: grid;
  grid-template-rows: auto 1fr auto;
}

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

a { color: var(--brand-white); text-decoration: underline; text-decoration-color: rgba(255,255,255,0.35); text-underline-offset: 0.2em; }
a:hover { color: var(--brand-red); text-decoration-color: currentColor; }

:focus-visible { outline: 2px solid var(--brand-red); outline-offset: 3px; border-radius: 4px; }
:focus:not(:focus-visible) { outline: none; }

.container { max-width: 76rem; margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.5rem); width: 100%; }

/* ---- Top bar ------------------------------------------------------------ */
.chooser-header {
  padding-block: clamp(1.25rem, 2.5vw, 2rem);
  border-bottom: 1px solid var(--brand-border);
}
.chooser-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  color: var(--brand-white);
}
.chooser-brand:hover { text-decoration: none; color: var(--brand-white); }
.chooser-brand-logo {
  /* The Prospero logo PNG is dark — we invert to white on the dark chooser.
     The logo itself is well-cropped so no background fill needed. */
  height: 2rem;
  width: auto;
  filter: brightness(0) invert(1);   /* render as white on black */
}
.chooser-brand-sub {
  font-size: 0.8125rem;
  color: var(--brand-mute-fg);
  font-weight: 500;
  padding-left: 0.85rem;
  border-left: 1px solid var(--brand-border);
  letter-spacing: 0.02em;
}

/* ---- Main ---------------------------------------------------------------- */
.chooser-main {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.chooser-lede {
  max-width: 44rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.chooser-kicker {
  display: inline-block;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-red);
  font-weight: 600;
  margin-bottom: 1rem;
}
.chooser-title {
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 0 0 1rem;
  text-wrap: balance;
}
.chooser-title em {
  font-style: normal;
  color: var(--brand-red);
}
.chooser-sub {
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  color: var(--brand-mute-fg);
  max-width: 52ch;
  margin: 0;
}

/* ---- Version cards ------------------------------------------------------- */
.chooser-versions {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 820px) {
  .chooser-versions { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
}

.version-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background: var(--brand-mute);
  border: 1px solid var(--brand-border);
  border-radius: 4px;
  color: var(--brand-white);
  text-decoration: none;
  min-height: 18rem;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}
.version-card:hover {
  border-color: var(--brand-red);
  background: #1c1c1c;
  color: var(--brand-white);
  transform: translateY(-2px);
  text-decoration: none;
}
.version-card--active {
  background: var(--brand-black);
  border-color: var(--brand-red);
}
.version-card--active::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: var(--brand-red);
}
.version-card--placeholder {
  opacity: 0.6;
  pointer-events: none;
}

.version-card__label {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-mute-fg2);
  font-weight: 600;
}
.version-card--active .version-card__label { color: var(--brand-red); }

.version-card__status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--brand-border);
  border-radius: 999px;
  color: var(--brand-mute-fg);
  align-self: flex-start;
}
.version-card--active .version-card__status {
  color: var(--brand-red);
  border-color: var(--brand-red);
}
.version-card__status::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
}

.version-card__title {
  font-size: clamp(1.375rem, 2vw, 1.625rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
}
.version-card__desc {
  color: var(--brand-mute-fg);
  font-size: 0.98rem;
  margin: 0;
  flex: 1;
}

.version-card__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: auto;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}
.btn--primary { background: var(--brand-red); color: var(--brand-white); border-color: var(--brand-red); }
.btn--primary:hover { background: var(--brand-red-hov); border-color: var(--brand-red-hov); color: var(--brand-white); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--brand-white); border-color: rgba(255,255,255,0.25); }
.btn--ghost:hover { border-color: var(--brand-white); text-decoration: none; color: var(--brand-white); }
.btn--disabled { background: transparent; color: var(--brand-mute-fg2); border-color: var(--brand-border); cursor: not-allowed; }
.btn__arrow { display: inline-block; transition: transform 180ms ease; }
.btn:hover .btn__arrow { transform: translateX(2px); }

/* ---- Meta row (below cards) --------------------------------------------- */
.chooser-meta {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  padding-top: clamp(2.5rem, 6vw, 4rem);
  color: var(--brand-mute-fg);
  font-size: 0.92rem;
}
@media (min-width: 820px) {
  .chooser-meta { grid-template-columns: repeat(3, 1fr); }
}
.chooser-meta h2 {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--brand-white);
  margin: 0 0 0.5rem;
  font-weight: 600;
}
.chooser-meta p { margin: 0; max-width: 40ch; }
.chooser-meta a { color: var(--brand-white); }

/* ---- Footer ------------------------------------------------------------- */
.chooser-footer {
  border-top: 1px solid var(--brand-border);
  padding-block: 1.5rem;
  color: var(--brand-mute-fg2);
  font-size: 0.85rem;
}
.chooser-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.chooser-footer a { color: var(--brand-mute-fg); }