/* fieldguide.css — Rollmark design system
   Grade Field Guide — the letterboard study card.
   Uses global tokens from style.css (:root). */

#fieldguide-screen {
  position: relative;
  z-index: 0;
  overflow: hidden;
  background: var(--paper);
  min-height: 100vh;
  color: var(--ink);
}

/* Faint overprint — same ink-over-content technique as the landing hero.
   Negative z-index (contained by #fieldguide-screen's own stacking
   context) keeps it strictly behind every normal-flow child. */
.fg-overprint {
  --art: url(assets/art-rib.png);
  position: absolute;
  top: 0;
  right: -40px;
  width: 340px;
  aspect-ratio: 1400 / 1053;
  color: var(--ink);
  opacity: 0.05;
  z-index: -1;
  pointer-events: none;
  user-select: none;
}

.fg-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 36px 20px 64px;
}

/* ── Hero ───────────────────────────────────────────────────── */

.fg-hero {
  position: relative;
  text-align: center;
  padding: 8px 0 4px;
}

.fg-postmark {
  position: absolute;
  top: -6px;
  right: 0;
  opacity: 0.5;
}

.fg-eyebrow {
  display: block;
  font-family: var(--font-script);
  font-size: 26px;
  color: var(--red);
  line-height: 1.2;
  transform: rotate(-2deg);
  margin-bottom: 2px;
}

.fg-title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4.4vw, 2.3rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--track-stamp);
  line-height: 1.12;
  margin: 0 0 10px;
}

.fg-sub {
  font-family: var(--font-ui);
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.6;
  max-width: 48ch;
  margin: 0 auto;
}

/* ── Sections ───────────────────────────────────────────────── */

.fg-section {
  margin-top: 40px;
}

/* Letterboard band section header — torn strip (sawtooth edges,
   same mask technique as the .ticket receipt system) */
.fg-board-header {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--track-wide);
  color: var(--board-text);
  background: var(--board-bg);
  padding: 16px 18px 13px;
  margin: 0 0 18px;
  text-align: center;
  -webkit-mask:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='7'%3E%3Cpath d='M0 7 L8 0 L16 7 Z'/%3E%3C/svg%3E") repeat-x top / 16px 7px,
    linear-gradient(#000, #000) 0 7px / 100% calc(100% - 14px) no-repeat,
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='7'%3E%3Cpath d='M0 0 L8 7 L16 0 Z'/%3E%3C/svg%3E") repeat-x bottom / 16px 7px;
  mask:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='7'%3E%3Cpath d='M0 7 L8 0 L16 7 Z'/%3E%3C/svg%3E") repeat-x top / 16px 7px,
    linear-gradient(#000, #000) 0 7px / 100% calc(100% - 14px) no-repeat,
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='7'%3E%3Cpath d='M0 0 L8 7 L16 0 Z'%3E%3C/path%3E%3C/svg%3E") repeat-x bottom / 16px 7px;
}

.fg-lead {
  font-family: var(--font-ui);
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.6;
  margin: 0 0 14px;
  text-align: center;
}

/* Prose sections — no box, just measured text between ornaments */
.fg-section--prose {
  text-align: center;
}

.fg-prose-heading {
  font-family: var(--font-script);
  font-size: 27px;
  font-weight: 400;
  color: var(--red);
  margin: 4px 0 10px;
  transform: rotate(-1.5deg);
}

.fg-body {
  font-family: var(--font-ui);
  font-size: 14.5px;
  color: var(--ink-soft);
  line-height: 1.7;
  margin: 0 auto;
  max-width: 58ch;
  text-align: left;
}

.fg-note {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--ink-faint);
  line-height: 1.6;
  margin: 14px 0 0;
}

/* ── Grade ladder ───────────────────────────────────────────── */

.fg-ladder {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1.5px solid var(--ink);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.fg-rung {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--paper-card);
}
.fg-rung:last-child { border-bottom: none; }

/* Family boundary — the heavy rule where contests are won */
.fg-rung--boundary {
  border-top: 2px solid var(--ink);
}

.fg-rung-grade {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--track-stamp);
  color: var(--ink);
}

.fg-rung-family {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--track-wide);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--ink);
  color: var(--ink);
  background: transparent;
}

.fg-rung--prime .fg-rung-grade { color: var(--red); }
.fg-rung--prime .fg-rung-family {
  background: var(--red);
  border-color: var(--ink);
  color: var(--poster-cream);
}
.fg-rung--choice .fg-rung-family {
  background: var(--board-bg);
  color: var(--board-text);
}
.fg-rung--select .fg-rung-family {
  background: var(--paper-deep);
}
.fg-rung--standard .fg-rung-family {
  background: transparent;
  color: var(--ink-faint);
  border-color: var(--ink-faint);
}

/* ── Marbling specimens — butcher-chart rows w/ USDA photos ── */

.fg-specimen-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.fg-specimen-row {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 9px 4px;
  border-bottom: 1px dashed var(--line);
}
.fg-specimen-row:last-child {
  border-bottom: none;
}

/* Clickable thumbnail — opens the shared image modal full screen */
.fg-specimen-view {
  position: relative;
  display: block;
  flex-shrink: 0;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  border-radius: 3px;
}
.fg-specimen-view:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}
/* alternate rows lean the specimen slightly — pinned prints, not a grid */
.fg-specimen-row:nth-child(odd) .fg-specimen-view { transform: rotate(-1.6deg); }
.fg-specimen-row:nth-child(even) .fg-specimen-view { transform: rotate(1.3deg); }

/* Zoom badge — signals the photo is tappable */
.fg-specimen-view::after {
  content: '';
  position: absolute;
  right: 1px;
  bottom: 1px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: var(--ink);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F5EFE2' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='10' cy='10' r='6.5'/%3E%3Cline x1='20' y1='20' x2='15.5' y2='15.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 12px 12px;
  opacity: 0.85;
  pointer-events: none;
}

.fg-specimen-img {
  display: block;
  width: 68px;
  height: 86px;
  object-fit: cover;
  background: var(--paper-card);
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  padding: 4px;
}

.fg-specimen-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.fg-specimen-row--nophoto {
  padding-left: 90px;
}

.fg-marbling-degree {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink);
  line-height: 1.3;
}

.fg-marbling-grade {
  font-family: var(--font-script);
  font-size: 19px;
  color: var(--red);
  line-height: 1.15;
}

/* ── Scoring menu — dotted-leader price list, no box ────────── */

.fg-scoring-menu {
  max-width: 480px;
  margin: 0 auto;
}

.fg-scoring-menu .scoring-explainer-list {
  margin: 0;
  padding: 0;
  gap: 10px;
  font-size: 14px;
}

/* ── Footer ─────────────────────────────────────────────────── */

.fg-footer {
  margin-top: 44px;
  text-align: center;
}

.fg-footer .btn-primary {
  margin-top: 8px;
}

/* ── Responsive ─────────────────────────────────────────────── */

@media (max-width: 640px) {
  .fg-postmark { display: none; }
  .fg-overprint { display: none; }
  .fg-rung {
    padding: 9px 12px;
  }
  .fg-rung-grade { font-size: 12px; }
  .fg-specimen-row {
    gap: 14px;
  }
  .fg-specimen-img {
    width: 60px;
    height: 78px;
  }
  .fg-specimen-row--nophoto {
    padding-left: 78px;
  }
}