/* ═══════════════════════════════════════════
   FORM PAGES — shared styles
   Builds on top of styles.css (tokens, reset, btn, mono)
═══════════════════════════════════════════ */

/* ── Page shell ──────────────────────────── */
body {
  overflow-x: hidden;
}

/* Subtle silicon glow centered on page */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 70% 55% at 50% 35%, rgba(143, 168, 196, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ── Nav (always glass on form pages) ───── */
.nav {
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(143, 168, 196, 0.08);
}

.form-nav-back {
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
  text-decoration: none;
}
.form-nav-back:hover { color: var(--silicon-blue); }

/* ── Progress bar ────────────────────────── */
.form-progress {
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  height: 2px;
  background: rgba(143, 168, 196, 0.08);
  z-index: 99;
  opacity: 0;
  transition: opacity 0.4s;
}
.form-progress.visible { opacity: 1; }

.form-progress__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--copper), #E8925A);
  transition: width 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  width: 0%;
}

/* ── Intro screen ────────────────────────── */
.form-intro {
  min-height: 100svh;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 3rem) var(--gutter) 4rem;
  position: relative;
  z-index: 1;
}

.form-intro__inner {
  max-width: 640px;
  text-align: center;
}

.form-intro__kicker {
  color: var(--copper);
  margin-bottom: 1.5rem;
}

.form-intro__headline {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7rem);
  line-height: 0.92;
  color: var(--glint);
  background: linear-gradient(135deg, var(--glint) 0%, var(--silicon-blue) 55%, var(--glint) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  letter-spacing: 0.01em;
}

.form-intro__copy {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 2.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.form-intro__time {
  margin-top: 1.25rem;
  color: var(--text-muted);
  opacity: 0.5;
}

/* ── Form wrap (hidden until started) ───── */
.form-wrap {
  display: none;
  min-height: 100svh;
  min-height: 100vh;
  align-items: flex-start;
  justify-content: center;
  padding: calc(var(--nav-h) + 2px + 3rem) var(--gutter) 5rem;
  position: relative;
  z-index: 1;
}

/* ── Screens ─────────────────────────────── */
.form-screen {
  display: none;
  width: 100%;
  max-width: 660px;
}

.form-screen.active {
  display: block;
}

/* ── Step counter ────────────────────────── */
.form-screen__step {
  color: var(--copper);
  margin-bottom: 1.25rem;
  font-size: 0.65rem;
}

/* ── Question headline ───────────────────── */
.form-screen__headline {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 7vw, 4rem);
  color: var(--glint);
  line-height: 0.92;
  margin-bottom: 0.75rem;
  letter-spacing: 0.01em;
}

.form-screen__sub {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.65;
  margin-bottom: 2.25rem;
}

/* ── Error banner ────────────────────────── */
.form-error-banner {
  background: rgba(200, 60, 60, 0.08);
  border: 1px solid rgba(200, 60, 60, 0.25);
  color: rgba(230, 120, 120, 0.9);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  padding: 0.75rem 1rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
  display: none;
}
.form-error-banner.visible { display: block; }

/* ── Fields ──────────────────────────────── */
.form-field {
  margin-bottom: 1.75rem;
}

.form-field__label {
  display: block;
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 0.85rem;
}

.form-field__hint {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 0.6rem;
  line-height: 1.5;
}

.form-field__sublabel {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--silicon-blue);
  margin-bottom: 0.6rem;
}

.form-field__input,
.form-field__textarea {
  width: 100%;
  background: var(--slate);
  border: 1px solid rgba(143, 168, 196, 0.15);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.875rem 1rem;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  -webkit-appearance: none;
  line-height: 1.5;
}

.form-field__input:focus,
.form-field__textarea:focus {
  border-color: var(--silicon-blue);
  background: rgba(22, 28, 36, 0.9);
}

.form-field__input::placeholder,
.form-field__textarea::placeholder { color: var(--text-muted); }

.form-field__textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.65;
}

.form-field__input[type="date"] {
  color-scheme: dark;
}

/* Error state */
.form-field--error .form-field__input,
.form-field--error .form-field__textarea {
  border-color: rgba(200, 70, 70, 0.45);
}

/* Optional tag */
.optional-tag {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0.5;
  margin-left: 0.5rem;
}

/* Conditional reveal fields */
.form-field--conditional {
  display: none;
  margin-top: 0.75rem;
}
.form-field--conditional.visible {
  display: block;
}

/* ── Option cards (radio + checkbox) ─────── */
.form-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.form-options__label {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--text-primary);
  line-height: 1.55;
  margin-bottom: 0.85rem;
  display: block;
}

.form-option {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.875rem 1rem;
  border: 1px solid rgba(143, 168, 196, 0.1);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  user-select: none;
}

.form-option:hover {
  border-color: rgba(143, 168, 196, 0.28);
  background: rgba(143, 168, 196, 0.03);
}

.form-option.selected {
  border-color: rgba(199, 123, 62, 0.4);
  background: rgba(199, 123, 62, 0.06);
}

.form-option input[type="radio"],
.form-option input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

.form-option__marker {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border: 1px solid rgba(143, 168, 196, 0.3);
  border-radius: 2px;
  margin-top: 1px;
  position: relative;
  transition: border-color 0.2s, background 0.2s;
}

/* Radio: round */
.form-option--radio .form-option__marker {
  border-radius: 50%;
}

.form-option.selected .form-option__marker {
  border-color: var(--copper);
  background: var(--copper);
}

/* Checkmark (checkbox) */
.form-option--check.selected .form-option__marker::after {
  content: '';
  position: absolute;
  left: 2px;
  top: 4px;
  width: 9px;
  height: 5px;
  border-left: 1.5px solid var(--wafer-dark);
  border-bottom: 1.5px solid var(--wafer-dark);
  transform: rotate(-45deg);
}

/* Dot (radio) */
.form-option--radio.selected .form-option__marker::after {
  content: '';
  position: absolute;
  inset: 3px;
  background: var(--wafer-dark);
  border-radius: 50%;
}

.form-option__text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  line-height: 1.5;
  transition: color 0.2s;
  flex: 1;
}

.form-option.selected .form-option__text {
  color: var(--glint);
}

/* ── Card-style options (title + desc layout) */
.form-option__title {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.05;
  color: var(--glint);
  letter-spacing: 0.03em;
  margin-bottom: 0;
  transition: color 0.2s;
}

.form-option__desc {
  display: block;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.55;
  letter-spacing: 0;
  font-style: italic;
}

.form-option--card {
  padding: 1.1rem 1.1rem;
  align-items: flex-start;
}

.form-option--card .form-option__marker {
  margin-top: 0.4rem;
}

.form-option--card.selected .form-option__title {
  color: var(--copper);
}

.form-option--card.selected .form-option__desc {
  color: var(--silicon-blue);
}

/* ── Hybrid reveal: description hidden by default, shows on hover / selected ── */
.form-option--card .form-option__desc {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  transition: max-height 0.28s ease, opacity 0.22s ease, margin-top 0.22s ease;
}

.form-option--card:hover .form-option__desc,
.form-option--card.selected .form-option__desc {
  max-height: 8rem;
  opacity: 1;
  margin-top: 0.4rem;
}

@media (prefers-reduced-motion: reduce) {
  .form-option--card .form-option__desc { transition: none; }
}

/* Options error state */
.form-options.options-error .form-option {
  border-color: rgba(200, 70, 70, 0.2);
}

/* ── Two-column option grid (for larger lists) */
.form-options--grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  align-items: start;
}

@media (max-width: 560px) {
  .form-options--grid { grid-template-columns: 1fr; }
}

/* ── Actions ─────────────────────────────── */
.form-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(143, 168, 196, 0.06);
}

.form-back-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
  flex-shrink: 0;
}
.form-back-btn:hover { color: var(--silicon-blue); }

@media (max-width: 480px) {
  .form-actions {
    flex-direction: column-reverse;
    align-items: flex-start;
  }
  .form-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ── Confirmation screen ─────────────────── */
.form-screen--confirm {
  text-align: center;
  padding-top: 1rem;
}

.form-confirm__ring {
  width: 56px;
  height: 56px;
  border: 1px solid var(--copper);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  color: var(--copper);
}

.form-confirm__headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5rem);
  color: var(--glint);
  line-height: 0.92;
  margin-bottom: 1.75rem;
  letter-spacing: 0.01em;
}

.form-confirm__copy {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.75;
  max-width: 480px;
  margin: 0 auto 1.5rem;
}

.form-confirm__next {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--silicon-blue);
  line-height: 1.65;
  max-width: 440px;
  margin: 0 auto 2.5rem;
}

.form-confirm__creed {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  opacity: 0.8;
}

.form-confirm__home {
  margin-top: 2.5rem;
}

/* ── Divider ─────────────────────────────── */
.form-divider {
  margin: 1rem 0 1.75rem;
  border: none;
  border-top: 1px solid rgba(143, 168, 196, 0.08);
}