/* ==========================================================================
   Systems Diagnostic — site layer.

   Everything here builds on brand-tokens.css. No raw hex values: if a value
   isn't in the token sheet, it doesn't belong on the page.
   Per-site knob (CLAUDE.md): buttons stay Streamline yellow everywhere.
   ========================================================================== */

:root {
  --site-accent: var(--streamline);
}

body { min-height: 100vh; display: flex; flex-direction: column; }
main  { flex: 1; }

.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;
}

/* Screens are toggled by the `hidden` attribute in app.js. */
[hidden] { display: none !important; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  border-bottom: var(--bw-1) solid var(--border);
  background: var(--bg);
}
.site-header .wordmark {
  display: inline-block;
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--s-4) var(--s-5);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--fs-sm);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--fg);
  text-decoration: none;
}
.site-header { display: flex; }
.site-header .wordmark:hover { color: var(--fg-muted); }

/* ==========================================================================
   Full-bleed bands

   The brand's line art is deliberately not used on this page: tiled behind
   the hero and result copy it cut the legibility of the text sitting on it.
   The `.pattern*` classes still ship in brand-tokens.css and the three
   colorways are still in assets/, so another page can pick them up unchanged.

   The band's inner element stretches to fill it, so the hero can center its
   content against the band's full height.
   ========================================================================== */

.hero,
.result-hero,
.closing { display: flex; }
.hero > .band-body,
.result-hero > .band-body,
.closing > .band-body { flex: 1; }

/* The navy bands take their ground from .band-navy. The closing CTA sits on
   the cream tonal step so it still reads as its own band. */
.closing { background: var(--bg-inset); }

/* ==========================================================================
   SCREEN 1 · Landing
   ========================================================================== */

/* The hero fills the viewport below the header and centers its content, so the
   band never reads as a top-weighted slab with dead space beneath it. */
.hero { min-height: calc(100vh - 62px); }
.hero > .band-body {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-block: var(--s-9);
  padding-inline: var(--s-5);
}
.hero-inner {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.hero-eyebrow { color: var(--streamline); margin-bottom: var(--s-5); }

.screen-landing h1 {
  max-width: 20ch;
  margin-inline: auto;
  margin-bottom: var(--s-5);
}

.hero-lede {
  max-width: 54ch;
  margin-inline: auto;
  margin-bottom: var(--s-6);
  color: var(--space);
  opacity: 0.86;
}

.system-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--s-2);
  padding: 0;
  margin: 0 0 var(--s-7);
}
.system-tags .tag {
  background: transparent;
  border-color: rgba(247,244,235,0.28);
  color: var(--space);
}

.hero-hint {
  max-width: none;
  margin: var(--s-5) 0 0;
  font-size: var(--fs-sm);
  color: var(--process-40);
}

/* ==========================================================================
   Landing · What you get + closing CTA
   (Sections 2 and 3 of the brand page spine.)
   ========================================================================== */

.inside { padding-block: var(--section-y); }
.inside-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-5);
  text-align: center;
}
.inside-inner .rule-accent { margin-inline: auto; }
.inside-heading {
  font-size: clamp(1.75rem, 4vw, var(--fs-2xl));
  max-width: 24ch;
  margin-inline: auto;
  margin-bottom: var(--s-7);
}
.inside .grid-3 { text-align: left; }
.inside .card h3 {
  font-size: var(--fs-lg);
  line-height: var(--lh-snug);
  margin-bottom: var(--s-3);
}
.inside .card p {
  font-size: var(--fs-sm);
  color: var(--fg-muted);
  margin: 0;
}

.closing > .band-body {
  padding-block: var(--s-8);
  padding-inline: var(--s-5);
}
.closing-inner {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
}
.closing-heading {
  font-size: clamp(1.5rem, 3.2vw, var(--fs-xl));
  max-width: 34ch;
  margin-inline: auto;
  margin-bottom: var(--s-6);
}

/* Bigger primary CTA than the 44px default, for the two moments that matter. */
.btn-lg {
  min-height: 56px;
  padding-inline: var(--s-7);
  font-size: var(--fs-md);
}
.btn:disabled {
  background: var(--streamline-40);
  color: var(--process-60);
  cursor: not-allowed;
}

/* ==========================================================================
   SCREEN 2 · Quiz
   ========================================================================== */

.quiz-inner {
  max-width: 680px;
  margin-inline: auto;
  padding: var(--s-7) var(--s-5) var(--s-9);
}

.quiz-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-3);
}
.back-btn {
  background: none;
  border: none;
  padding: var(--s-2) 0;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--fg-muted);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  text-decoration-color: var(--streamline);
  transition: color var(--t-fast) var(--ease-out),
              text-decoration-color var(--t-fast) var(--ease-out);
}
.back-btn:hover:not(:disabled) { color: var(--fg); text-decoration-color: var(--border-strong); }
.back-btn:disabled { opacity: 0.4; cursor: default; text-decoration-color: transparent; }

.progress {
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--fg-muted);
}

.progress-track {
  height: 6px;
  background: var(--space-darker);
  border: var(--bw-1) solid var(--border);
  border-radius: var(--r-pill);
  overflow: hidden;
  margin-bottom: var(--s-8);
}
.progress-fill {
  height: 100%;
  width: 0;
  background: var(--site-accent);
  border-radius: var(--r-pill);
  transition: width var(--t-base) var(--ease-out);
}

.question-lead {
  text-align: center;
  color: var(--fg-subtle);
  margin-bottom: var(--s-4);
}
.question-text {
  font-size: clamp(1.5rem, 3.4vw, var(--fs-xl));
  line-height: var(--lh-snug);
  text-align: center;
  max-width: 30ch;
  margin: 0 auto var(--s-8);
  min-height: 2.4em;
}

.scale {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--s-3);
}
.scale-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  min-height: 104px;
  padding: var(--s-5) var(--s-2);
  background: var(--surface);
  border: var(--bw-1) solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease-out),
              border-color var(--t-fast) var(--ease-out),
              transform var(--t-base) var(--ease-out),
              box-shadow var(--t-base) var(--ease-out);
}
.scale-btn:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.scale-btn:active { transform: none; box-shadow: inset 0 2px 6px rgba(8,44,69,0.18); }
.scale-btn.selected {
  background: var(--streamline);
  border-color: var(--streamline);
}
.scale-num {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  line-height: 1;
  color: var(--fg);
}
.scale-label {
  font-size: var(--fs-xs);
  font-weight: 700;
  line-height: var(--lh-snug);
  text-align: center;
  color: var(--fg-muted);
}
.scale-btn.selected .scale-label,
.scale-btn.selected .scale-num { color: var(--process); }

.quiz-hint {
  text-align: center;
  color: var(--fg-subtle);
  margin: var(--s-6) auto 0;
  max-width: none;
}

/* ==========================================================================
   SCREEN 3 · Result
   ========================================================================== */

.result-hero > .band-body {
  padding-block: var(--s-8);
  padding-inline: var(--s-5);
}
.result-hero-inner {
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
}
.result-hero-inner .eyebrow { color: var(--streamline); }

.result-title {
  font-size: clamp(1.875rem, 4vw, var(--fs-2xl));
  max-width: 20ch;
  margin-inline: auto;
  margin-bottom: var(--s-4);
}
.winner-name { color: var(--streamline); }

.result-why {
  max-width: 56ch;
  margin: 0 auto;
  color: var(--space);
  opacity: 0.86;
}

.result-body { padding-block: var(--s-8) var(--s-9); }
.result-inner {
  max-width: 680px;
  margin-inline: auto;
  padding-inline: var(--s-5);
}

.ranked-block { margin-bottom: var(--s-8); }
.ranked-block .rule-accent { margin-inline: auto; }
.ranked-block .eyebrow { text-align: center; margin-bottom: var(--s-5); }

.ranked { display: grid; gap: var(--s-3); }
.rank-row {
  display: grid;
  grid-template-columns: 1fr 140px auto;
  align-items: center;
  gap: var(--s-4);
  background: var(--surface);
  border: var(--bw-1) solid var(--border);
  border-radius: var(--r-md);
  padding: var(--s-4) var(--s-5);
}
.rank-row.rank-winner {
  background: var(--streamline-20);
  border-color: var(--streamline);
}
.rank-name {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s-2);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--fg);
}
.rank-badge {
  display: inline-block;
  padding: 3px var(--s-3);
  border-radius: var(--r-pill);
  background: var(--process);
  color: var(--space);
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
}
.rank-bar {
  height: 8px;
  background: var(--space-darker);
  border-radius: var(--r-pill);
  overflow: hidden;
}
.rank-winner .rank-bar { background: var(--streamline-40); }
.rank-bar-fill {
  height: 100%;
  width: 0;
  background: var(--process-40);
  border-radius: var(--r-pill);
  transition: width var(--t-slow) var(--ease-out);
}
.rank-winner .rank-bar-fill { background: var(--process); }
.rank-score {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--fg-muted);
  text-align: right;
  min-width: 3.5ch;
}

/* Email gate */
.gate-card { text-align: center; }
.gate-title { font-size: var(--fs-xl); margin-bottom: var(--s-3); }
.gate-sub {
  max-width: 44ch;
  margin: 0 auto var(--s-6);
  color: var(--fg-muted);
}

.lead-form {
  width: 100%;
  max-width: 400px;
  margin-inline: auto;
  display: grid;
  gap: var(--s-3);
  text-align: left;
}
.lead-form .btn { margin-top: var(--s-2); }
.consent {
  font-size: var(--fs-xs);
  line-height: var(--lh-base);
  color: var(--fg-subtle);
  margin: var(--s-2) 0 0;
  max-width: none;
}
.form-error {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--danger);
  margin: 0;
  max-width: none;
}

/* Confirmation — replaces the gate card in place, no navigation. */
.confirmation-card { text-align: center; }
.confirmation-emblem { margin: 0 auto var(--s-5); }
.confirmation-card h3 { font-size: var(--fs-xl); margin-bottom: var(--s-3); }
.confirmation-card p {
  max-width: 46ch;
  margin: 0 auto;
  color: var(--fg-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer { background: var(--bg); }
.footer-inner {
  max-width: 640px;
  margin-inline: auto;
  padding-inline: var(--s-5);
  text-align: center;
}
.footer-emblem { margin: 0 auto var(--s-4); }
.footer-bio {
  color: var(--fg);
  margin: 0 auto var(--s-3);
  max-width: 46ch;
}
.footer-tagline {
  font-family: var(--font-display);
  font-size: var(--fs-md);
  color: var(--fg);
  margin: 0 auto var(--s-5);
  max-width: none;
}
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--s-3);
  margin: 0;
  max-width: none;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-weight: 700;
  text-decoration-thickness: 2px;
}
.footer-icon { width: 16px; height: 16px; flex: none; }
.footer-sep { color: var(--border); }

/* ==========================================================================
   Responsive — single column below 768px, section padding drops to 48px.
   ========================================================================== */

@media (max-width: 767px) {
  .hero { min-height: 0; }
  .hero > .band-body { padding-block: var(--s-8); }
  .inside { padding-block: var(--s-7); }
  .closing > .band-body { padding-block: var(--s-7); }
  .result-hero > .band-body { padding-block: var(--s-7); }
  .result-body { padding-block: var(--s-7); }
  .quiz-inner { padding-block: var(--s-6) var(--s-7); }
  .card-hero { padding: var(--s-6) var(--s-5); }
  .btn-lg { width: 100%; }
}

@media (max-width: 560px) {
  .scale { grid-template-columns: repeat(2, 1fr); }
  .scale-btn { min-height: 88px; }
  .rank-row {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "name score"
      "bar  bar";
    gap: var(--s-2) var(--s-4);
  }
  .rank-name  { grid-area: name; }
  .rank-score { grid-area: score; }
  .rank-bar   { grid-area: bar; }
}