/* The Field — questionnaire app.
   One question at a time, contemplative pacing.
   Visual values mirror the-field-tokens.json + design app.css. */

:root {
  --color-text: #333333;
  --color-text-strong: #000000;
  --color-text-muted: #666666;
  --color-text-inverse: #ffffff;
  --color-bg: #ffffff;
  --color-surface: #f3f3f3;
  --color-surface-sunken: #dddddd;
  --color-border: rgba(0, 0, 0, 0.18);
  --color-border-strong: #333333;
  --color-border-input: rgba(0, 0, 0, 0.25);
  --color-focus: #762eea;
  --color-error: #520000;
  --color-error-mark: #cc0000;
  --color-error-surface: #ffe0d9;
  --color-primary: #762eea;
  --color-primary-pressed: #2e057a;
  --color-primary-text: #ffffff;

  --gradient-primary:  linear-gradient(90deg, #2E057A 0%, #615CD9 50%, #FF66FF 100%);
  --gradient-tummo:    linear-gradient(90deg, #520000 0%, #B55400 50%, #FFDD00 100%);
  --gradient-dzogchen: linear-gradient(90deg, #001269 0%, #0073DD 50%, #20DEED 100%);
  --gradient-ember:    linear-gradient(90deg, #4F002E 0%, #C70073 50%, #FF66FF 100%);
  --gradient-horizon:  linear-gradient(90deg, #001269 0%, #615CD9 50%, #A9EF3C 100%);

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-pill: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --font-display: "Exposure", "Crimson Text", "Times New Roman", serif;
  --font-ui:      "GT America", "Public Sans", "Helvetica Neue", Helvetica, system-ui, sans-serif;
  --font-mono:    "GT America Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --motion-step-out: 140ms cubic-bezier(0.4, 0, 1, 1);
  --motion-step-in:  240ms cubic-bezier(0.16, 1, 0.3, 1);
  --motion-progress: 360ms cubic-bezier(0.22, 1, 0.36, 1);
  --motion-error:    220ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ─── RESET ──────────────────────────────────────────────────── */
[x-cloak] { display: none !important; }
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "liga" 1, "dlig" 1;
}
a { color: inherit; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--color-primary); }

.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;
}

/* ─── FRAME ─────────────────────────────────────────────────── */
.frame {
  position: relative;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  width: 100%;
  min-height: 100vh;
  background: var(--color-bg);
}

/* ─── PROGRESS BAR ──────────────────────────────────────────── */
.progress {
  height: 3px;
  background: rgba(0, 0, 0, 0.06);
  position: relative;
  z-index: 5;
}
.progress__fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  transition: width var(--motion-progress);
}
@media (prefers-reduced-motion: reduce) {
  .progress__fill { transition: none; }
}

/* ─── TOPBAR ────────────────────────────────────────────────── */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px 32px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.topbar__logo {
  font-family: var(--font-display);
  font-style: italic;
  text-transform: lowercase;
  letter-spacing: 0.01em;
  font-size: 17px;
  color: var(--color-text-strong);
  font-variation-settings: "EXPO" -20;
  font-feature-settings: "liga" 1, "dlig" 1, "clig" 1;
  text-decoration: none;
}
.topbar__counter { color: var(--color-text-muted); }
.topbar__counter strong { color: var(--color-text-strong); font-weight: 500; }

/* ─── STAGE — vertically centered question area ──────────────── */
.stage {
  position: relative;
  overflow: hidden;
  min-height: 60vh;
  padding: 48px 32px;
}
.step {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 48px 32px;
}
.step > * {
  width: 100%;
  max-width: 640px;
}
.step:focus-visible { outline: none; }

/* Alpine's bare x-transition produces inline opacity transitions; steps are
   absolute-stacked above so the cross-fade has no layout shift. */

/* ─── QUESTION CONTENT ─────────────────────────────────────── */
.q__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-4);
}
.q__label {
  display: block;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.005em;
  color: var(--color-text-strong);
  margin: 0 0 var(--space-3);
  text-wrap: pretty;
}
.q__optional {
  display: inline-block;
  margin-left: 0.5em;
  vertical-align: middle;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: lowercase;
  color: var(--color-text-muted);
  padding: 2px 6px 1px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  position: relative;
  top: -0.18em;
}
.q__optional.inline { top: 0; vertical-align: baseline; margin-left: 0; }

.q__help {
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-6);
  max-width: 56ch;
  text-wrap: pretty;
}

/* ─── INPUT — underline ─────────────────────────────────────── */
.input,
.textarea {
  display: block;
  width: 100%;
  font-family: var(--font-ui);
  font-size: 22px;
  line-height: 1.5;
  color: var(--color-text-strong);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--color-border-input);
  padding: 12px 0;
  margin: var(--space-3) 0 0;
  border-radius: 0;
  transition: border-color 120ms ease;
  min-height: 48px;
  appearance: none;
  -webkit-appearance: none;
}
.input::placeholder, .textarea::placeholder { color: var(--color-text-muted); opacity: 1; }
.input:hover, .textarea:hover { border-bottom-color: var(--color-border-strong); }
.input:focus, .textarea:focus, .input:focus-visible, .textarea:focus-visible {
  outline: none;
  border-bottom-color: var(--color-focus);
  box-shadow: 0 1px 0 0 var(--color-focus);
}
.textarea {
  min-height: 160px;
  resize: vertical;
  font-size: 19px;
}
.input:disabled, .textarea:disabled {
  color: var(--color-text-muted);
  border-bottom-color: var(--color-border);
  cursor: not-allowed;
}
.q.is-invalid .input,
.q.is-invalid .textarea {
  border-bottom-color: var(--color-error-mark);
  box-shadow: 0 1px 0 0 var(--color-error-mark);
}

/* ─── CHOICES (radio / checkbox) ─────────────────────────────── */
.choices {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-3);
  border-top: 1px solid var(--color-border);
  padding: 0;
  border-left: 0;
  border-right: 0;
  border-bottom: 0;
}
.choice {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  min-height: 56px;
  transition: padding-left 200ms ease, background 120ms ease;
  position: relative;
}
.choice:hover { background: var(--color-surface); padding-left: calc(var(--space-3) + 4px); }
.choice__key {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--color-border-input);
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 2px;
  background: var(--color-bg);
  transition: border-color 120ms ease, background 120ms ease, color 120ms ease;
}
.choice input { position: absolute; opacity: 0; pointer-events: none; left: 12px; top: 16px; }
.choice input:focus-visible + .choice__key { outline: 2px solid var(--color-focus); outline-offset: 2px; }
.choice input:checked + .choice__key {
  background: var(--color-text-strong);
  color: var(--color-bg);
  border-color: var(--color-text-strong);
}
.choice__label { font-size: 19px; line-height: 1.5; color: var(--color-text-strong); flex: 1; padding-top: 1px; }

.q.is-invalid .choices { border-top-color: var(--color-error-mark); }
.q.is-invalid .choice { border-bottom-color: var(--color-error-mark); }

/* ─── ERROR ─────────────────────────────────────────────────── */
.error-text {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--color-error);
  margin-top: var(--space-3);
  animation: errorIn var(--motion-error);
}
.error-text::before { content: "— "; color: var(--color-error-mark); }
@keyframes errorIn { from { opacity: 0; transform: translateY(-2px); } to { opacity: 1; transform: none; } }

/* ─── FOOTER (advance / back) ───────────────────────────────── */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 20px 32px 32px;
  background: linear-gradient(to top, var(--color-bg) 80%, transparent);
}
.footer__left, .footer__right { display: flex; align-items: center; gap: var(--space-4); }

.btn-advance {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-primary-text);
  background: var(--color-primary);
  border: 0;
  border-radius: var(--radius-pill);
  padding: 14px 24px;
  min-height: 48px;
  cursor: pointer;
  transition: background 160ms ease, transform 80ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}
.btn-advance:hover { background: #5b1fcc; }
.btn-advance:active { background: var(--color-primary-pressed); transform: translateY(1px); }
.btn-advance:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
.btn-advance:disabled, .btn-advance.is-loading {
  background: var(--color-surface-sunken);
  color: var(--color-text-muted);
  cursor: not-allowed;
}
.btn-advance__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.75;
  font-variant-numeric: tabular-nums;
}

.btn-back,
.btn-ghost {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: 14px;
  color: var(--color-text-muted);
  background: transparent;
  border: 0;
  padding: 12px 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  text-decoration: none;
}
.btn-back:hover,
.btn-ghost:hover { color: var(--color-text-strong); text-decoration: underline; text-underline-offset: 4px; }
.btn-back:focus-visible,
.btn-ghost:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; border-radius: 2px; }

/* ─── CENTER PROSE (intro / submitting / failure / thanks / 404) ── */
.center-prose {
  width: 100%;
  max-width: 560px;
  text-align: left;
}
.center-prose__h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 56px;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--color-text-strong);
  margin: 0 0 var(--space-5);
  text-wrap: pretty;
}
.center-prose__intro {
  font-size: 19px;
  line-height: 1.55;
  color: var(--color-text);
  margin: 0 0 var(--space-3);
  max-width: 56ch;
  text-wrap: pretty;
}
.center-prose__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-5);
}
.center-prose__cta {
  margin-top: var(--space-7);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.center-prose__list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-3);
  font-size: 19px;
  line-height: 1.55;
  color: var(--color-text);
  max-width: 56ch;
}
.center-prose__list li {
  position: relative;
  padding-left: 1.4em;
  margin: 0 0 var(--space-2);
}
.center-prose__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-text-muted);
}

.center-prose__convention {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  margin: var(--space-6) 0 0;
}

/* ─── SUBMITTING ───────────────────────────────────────────── */
.submitting {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-4);
}
.submitting__pulse {
  width: 28px; height: 28px;
  border-radius: 999px;
  background: var(--gradient-primary);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(0.8); opacity: 0.6; }
  50%      { transform: scale(1.1); opacity: 1; }
}
.submitting__text {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--color-text);
  margin: 0;
}
@media (prefers-reduced-motion: reduce) {
  .submitting__pulse { animation: none; opacity: 1; transform: none; }
}

/* ─── ERROR SUMMARY (for non-fatal validation summary) ─────── */
.form-error-summary {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--color-error);
  margin: 0 0 var(--space-5);
}
.form-error-summary::before { content: "— "; color: var(--color-error-mark); }

/* ─── MOBILE (≤ 480px) ──────────────────────────────────────── */
@media (max-width: 480px) {
  .topbar { padding: 14px 20px; font-size: 11px; }
  .topbar__logo { font-size: 15px; }
  .stage { padding: 20px 20px; }
  .q__label { font-size: 26px; }
  .q__help { font-size: 15px; }
  .input, .textarea { font-size: 18px; }
  .textarea { min-height: 130px; font-size: 17px; }
  .choice__label { font-size: 17px; }
  .footer { padding: 14px 20px 20px; }
  .footer__right { flex: 1; }
  .btn-advance { width: 100%; }
  .center-prose__h1 { font-size: 38px; }
  .center-prose__intro { font-size: 17px; }
}