/* Constraint Calculator . Unlocked Founders V5 design system (2026-05-10 canonical) */
/* Per brands/unlocked-founders/BRAND.md . V2 colors + Clash Display + Satoshi. */

:root {
  --bg: #060e09;
  --surface: #0d1a0f;
  --surface-raised: #0a160c;
  --surface-card: #0d1a0f;
  --border: rgba(200, 245, 118, 0.12);
  --border-strong: rgba(200, 245, 118, 0.35);
  --text: #f5fff4;
  /* WCAG AA: text-secondary now hits 4.5:1 against #060e09 (was 0.7 alpha, now full opaque tone) */
  --text-secondary: #c9d6cb;
  --text-muted: #8a988c;
  --accent: #c8f576;
  --accent-hover: #d6ff85;
  --accent-text: #060e09;
  --accent-dim: rgba(200, 245, 118, 0.18);
  --glow: rgba(200, 245, 118, 0.08);
  --error: #ff8a8a;
  --error-bg: rgba(255, 138, 138, 0.08);
  --error-border: rgba(255, 138, 138, 0.45);

  --font-display: "Clash Display", ui-sans-serif, -apple-system, sans-serif;
  --font-body: "Satoshi", ui-sans-serif, -apple-system, sans-serif;

  --radius: 14px;
  --radius-card: 16px;
  --radius-button: 10px;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  position: relative;
  min-height: 100vh;
}

/* Signature V5 radial glow at top of page */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1400px;
  height: 700px;
  background: radial-gradient(ellipse at top center, var(--glow) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* Skip-link for keyboard users (a11y) */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-text);
  padding: 8px 14px;
  border-radius: var(--radius-button);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  z-index: 10000;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
  outline: 2px solid var(--accent-hover);
  outline-offset: 2px;
}

/* Progress bar fixed at top of page */
.progress-shell {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(200, 245, 118, 0.08);
  z-index: 50;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.page,
.result-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-3);
  position: relative;
  z-index: 1;
}

/* Honeypot field (kept off-screen + un-focusable) */
.hp-field {
  position: absolute !important;
  left: -10000px !important;
  top: -10000px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Hero */
.hero {
  margin-bottom: var(--space-8);
  text-align: left;
}
.eyebrow {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-2);
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(40px, 7vw, 64px);
  line-height: 1.02;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-3);
  color: var(--text);
}
.hero .accent { color: var(--accent); }
.hero .sub {
  font-size: 19px;
  line-height: 1.5;
  color: var(--text-secondary);
  margin: 0;
  max-width: 600px;
}

/* Form */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.question {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  position: relative;
  /* Initial state for fade-up reveal. JS toggles .is-visible. */
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 480ms ease, transform 480ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.question.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.q-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.q-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  line-height: 1;
}
.q-body h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  letter-spacing: 0.01em;
  line-height: 1.2;
  margin: 0 0 var(--space-1);
  color: var(--text);
}
.q-body .q-hint {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 var(--space-3);
  line-height: 1.4;
}

/* Icon-box grid for multi-choice options */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
}
.icon-box {
  position: relative;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-2);
  cursor: pointer;
  transition: border-color 140ms ease, background 140ms ease, transform 80ms ease;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  gap: var(--space-1);
}
.icon-box:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.icon-box input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
/* Keyboard focus ring on the box when the inner radio is focused */
.icon-box:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.icon-box .icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: color 140ms ease;
}
.icon-box .icon svg {
  width: 100%;
  height: 100%;
}
.icon-box .label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  line-height: 1.25;
}
.icon-box .sublabel {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}
.icon-box.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
}
.icon-box.selected .icon {
  color: var(--accent);
}
.icon-box.selected .label {
  color: var(--accent);
}

/* Text + textarea inputs */
.text-input,
.textarea-input {
  width: 100%;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-button);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 14px 16px;
  outline: none;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}
.text-input:focus,
.textarea-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(200, 245, 118, 0.18);
}
.textarea-input {
  resize: vertical;
  min-height: 84px;
  font-family: var(--font-body);
  line-height: 1.5;
}

/* Universal keyboard focus-visible ring (a11y) */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}
button:focus-visible,
.cta-link:focus-visible,
.result-back:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Submit */
.submit {
  background: var(--accent);
  color: var(--accent-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  border: 0;
  border-radius: var(--radius-button);
  padding: 20px 24px;
  cursor: pointer;
  transition: background 140ms ease, transform 80ms ease, box-shadow 200ms ease;
  width: 100%;
  margin-top: var(--space-2);
}
.submit:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}
.submit:active {
  transform: translateY(1px);
}
.submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}
.submit-loading { display: none; }
.submit.is-loading .submit-default { display: none; }
.submit.is-loading .submit-loading { display: inline; }

/* Pulse when form is fully valid (all required answered) */
.submit.is-ready {
  animation: ready-pulse 1.8s ease-in-out infinite;
}
@keyframes ready-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(200, 245, 118, 0.55); }
  50%      { box-shadow: 0 0 0 12px rgba(200, 245, 118, 0); }
}

.legal {
  font-size: 13px;
  color: var(--text-muted);
  margin: var(--space-2) 0 0;
  text-align: center;
}

/* Inline error banner (replaces alert()) */
.error-banner {
  display: none;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  border-radius: var(--radius-button);
  padding: var(--space-2) var(--space-3);
  margin-top: var(--space-2);
  color: var(--error);
  font-size: 15px;
}
.error-banner.show { display: block; }
.error-banner .error-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--error);
  margin: 0 0 6px;
}
.error-banner .error-detail {
  color: var(--text-secondary);
  margin: 0 0 var(--space-2);
  font-size: 14px;
  line-height: 1.5;
}
.error-banner .error-retry {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: var(--radius-button);
  padding: 8px 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.error-banner .error-retry:hover {
  background: var(--accent);
  color: var(--accent-text);
}

/* Rate-limit notice (60-sec resubmit block) */
.rate-notice {
  display: none;
  background: rgba(200, 245, 118, 0.06);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-button);
  padding: var(--space-2) var(--space-3);
  margin-top: var(--space-2);
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}
.rate-notice.show { display: block; }

/* Loading overlay during diagnosis */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 14, 9, 0.92);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-3);
}
.loading-overlay.show {
  display: flex;
}
.loading-overlay .spinner {
  width: 56px;
  height: 56px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 999px;
  animation: spin 800ms linear infinite;
}
.loading-overlay .loading-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: 0.01em;
  color: var(--text);
  text-align: center;
}
.loading-overlay .loading-sub {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 400px;
  text-align: center;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Result page */
.result-shell .result-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: var(--space-3);
}
.result-shell .result-back:hover { color: var(--accent); }

.result-shell h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin: 0 0 var(--space-2);
}
.result-shell .result-lead {
  color: var(--text-secondary);
  font-size: 18px;
  margin: 0 0 var(--space-6);
  max-width: 580px;
}
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 520ms ease, transform 520ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
.result-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.result-card.highlight {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-dim) 0%, var(--surface) 100%);
}
.result-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-1);
}
.result-card h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.15;
  margin: 0 0 var(--space-2);
  color: var(--text);
}
.result-card p {
  margin: 0 0 var(--space-2);
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 17px;
}
.option-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}
.option-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: var(--space-2);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-button);
  padding: var(--space-2) var(--space-3);
}
.option-item .opt-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: var(--accent);
}
.option-item .opt-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--text);
  margin: 0 0 4px;
}
.option-item .opt-detail {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

.cta-bar {
  background: var(--surface);
  border: 1px solid var(--accent);
  border-radius: var(--radius-card);
  padding: var(--space-6) var(--space-4);
  margin-top: var(--space-8);
  text-align: center;
}
.cta-bar h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 36px);
  margin: 0 0 var(--space-2);
  color: var(--text);
}
.cta-bar p {
  color: var(--text-secondary);
  font-size: 16px;
  margin: 0 0 var(--space-3);
}
.cta-bar .cta-link {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
  padding: 16px 32px;
  border-radius: var(--radius-button);
  transition: background 140ms ease, transform 80ms ease;
}
.cta-bar .cta-link:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-3);
  color: var(--text-secondary);
}

/* Tablet + small-laptop tweaks */
@media (max-width: 600px) {
  .page, .result-shell { padding: var(--space-4) var(--space-2); }
  .hero h1 { font-size: 38px; }
  .question { padding: var(--space-3); }
  .q-body h2 { font-size: 20px; }
  .icon-grid { grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; }
  .icon-box { padding: var(--space-2) 12px; min-height: 100px; }
  .result-card { padding: var(--space-3); }
  .result-card h2 { font-size: 22px; }
}

/* Narrow-phone polish (<400px). Two-column icon grid, slightly shorter boxes, */
/* tighter typography. Keeps the SVG icon legible and the label on one line. */
@media (max-width: 400px) {
  .page, .result-shell { padding: var(--space-3) 14px; }
  .hero h1 { font-size: 32px; }
  .hero .sub { font-size: 16px; }
  .question { padding: 18px 16px; }
  .q-body h2 { font-size: 18px; line-height: 1.25; }
  .q-body .q-hint { font-size: 13px; }
  /* Force 2-col so labels stay readable and don't overflow */
  .icon-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .icon-box { padding: 14px 8px; min-height: 92px; gap: 6px; }
  .icon-box .icon { width: 28px; height: 28px; }
  .icon-box .label { font-size: 13px; line-height: 1.2; }
  .text-input, .textarea-input { font-size: 16px; padding: 12px 14px; }
  .submit { font-size: 18px; padding: 18px 20px; }
  .legal { font-size: 12px; }
  .loading-overlay .loading-text { font-size: 19px; }
  .loading-overlay .loading-sub { font-size: 14px; }
}

/* prefers-reduced-motion . disable transforms + non-essential animation */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    transition-delay: 0ms !important;
    scroll-behavior: auto !important;
  }
  .question,
  .result-card {
    opacity: 1 !important;
    transform: none !important;
  }
  .icon-box:hover,
  .submit:hover,
  .cta-link:hover {
    transform: none !important;
  }
  .submit.is-ready { animation: none !important; }
  .loading-overlay .spinner { animation: none !important; }
  .progress-fill { transition: none !important; }
}