/* =====================================================================
   InstaFarm · Chapter 04 "The process & traceability" + live trace demo
   Drop-in component, measured from trace-reference.png (stage = 1867px).
   Inner sizes use container-query units (cqi = 1% of .trace__stage width)
   with px floors. DO NOT replace cqi values with px / vw / clamp.
   ===================================================================== */

.trace {
  --tr-bg: #FDF8F5;
  --tr-ink: #17171D;
  --tr-text: #5E5654;
  --tr-red: #C4161C;
  --tr-red-dark: #A91218;
  --tr-line: #F0DCD7;
  --tr-chip: #FCE9E5;

  position: relative;
  overflow: hidden;
  background:
    url("../assets/img/trace/trace-bg.webp") right 45% / cover no-repeat,
    var(--tr-bg);
  scroll-margin-top: 80px;
}
.trace::before {                 /* keeps the left side clean cream behind the text */
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(253,248,245,.97) 0%, rgba(253,248,245,.9) 36%, rgba(253,248,245,0) 55%);
  pointer-events: none;
}
.trace__stage {
  container-type: inline-size;
  position: relative;
  z-index: 1;
  max-width: 1600px;
  margin: 0 auto;
}
.trace__inner {
  position: relative;
  min-height: 45cqi;
  box-sizing: border-box;
  padding: 4.1cqi 5cqi 3.4cqi 7.35cqi;
  display: grid;
  grid-template-columns: 38.5cqi minmax(0, 1fr);
  column-gap: 3.95cqi;
  align-items: start;
}

/* ---------- left ---------- */
.trace__eyebrow {
  margin: 0;
  font: 700 max(12px, .8cqi)/1 'Instrument Sans', system-ui, sans-serif;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--tr-red);
}
.trace__title {
  margin: 1.5cqi 0 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 600;
  font-size: max(32px, 4.18cqi);
  line-height: 1.02;
  letter-spacing: -.025em;
  color: var(--tr-ink);
}
.trace__title span { display: block; white-space: nowrap; }
.trace__title em { font-style: italic; color: var(--tr-red); }
.trace__lede {
  margin: 1.4cqi 0 0;
  max-width: 34cqi;
  font: 400 max(15px, 1.07cqi)/1.55 'Instrument Sans', system-ui, sans-serif;
  color: var(--tr-text);
}
.trace__steps { position: relative; list-style: none; margin: 2cqi 0 0; padding: 0; display: grid; gap: 1.45cqi; }
.trace__steps::before {          /* dashed spine linking the icons */
  content: "";
  position: absolute;
  left: 2.03cqi;
  top: 3cqi;
  bottom: 3cqi;
  border-left: 1.3px dashed #E5B9B3;
}
.trace__step { position: relative; display: grid; grid-template-columns: 4.07cqi 2.85cqi minmax(0, 1fr); column-gap: 2.2cqi; align-items: center; }
.trace__step-icon {
  width: max(44px, 4.07cqi);
  height: max(44px, 4.07cqi);
  border-radius: 50%;
  background: #FCEBE7;
  box-shadow: 0 0 0 .45cqi var(--tr-bg);
  display: grid;
  place-items: center;
  color: var(--tr-red);
}
.trace__step-icon svg { width: 46%; height: 46%; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.trace__step-num {
  align-self: start;
  margin-top: .75cqi;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40;
  font-weight: 600;
  font-size: max(17px, 1.2cqi);
  color: var(--tr-red);
}
.trace__step h3 {
  margin: 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 600;
  font-size: max(17px, 1.2cqi);
  line-height: 1.2;
  color: var(--tr-ink);
}
.trace__step p { margin: .3cqi 0 0; font: 400 max(14px, .92cqi)/1.45 'Instrument Sans', system-ui, sans-serif; color: var(--tr-text); }

/* ---------- right: floating chips + demo card ---------- */
.trace__right { position: relative; padding-top: 8.2cqi; }
.trace__deco { position: absolute; inset: 0; pointer-events: none; }
.trace__deco svg { position: absolute; left: -2cqi; top: 0; width: calc(100% + 12cqi); height: 100%; overflow: visible; }
.trace__float {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: .8cqi;
  padding: .75cqi 1.2cqi .75cqi .8cqi;
  border-radius: .75cqi;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 10px 28px rgba(120, 50, 40, .12);
  font: 500 max(12px, .8cqi)/1 'Instrument Sans', system-ui, sans-serif;
  color: var(--tr-ink);
  white-space: nowrap;
}
.trace__float i {
  width: max(24px, 1.9cqi);
  height: max(24px, 1.9cqi);
  border-radius: 50%;
  background: var(--tr-chip);
  display: grid;
  place-items: center;
  color: var(--tr-red);
}
.trace__float svg { width: 60%; height: 60%; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.trace__float--dry  { left: 12.9cqi; top: .7cqi; }
.trace__float--pack { left: 37cqi; top: 27cqi; }
.trace__float--ship { left: 39.5cqi; top: 32.9cqi; }

.trace__card {
  position: relative;
  z-index: 3;
  width: 38.3cqi;
  box-sizing: border-box;
  padding: 2.35cqi 2.14cqi 2.1cqi;
  border-radius: 1.2cqi;
  border: 1px solid rgba(255, 255, 255, .9);
  background: rgba(255, 253, 252, .985);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  box-shadow: 0 30px 70px rgba(110, 40, 30, .14);
}
.trace__card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 1cqi; }
.trace__card-eyebrow {
  margin: 0;
  font: 700 max(11px, .72cqi)/1 'Instrument Sans', system-ui, sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--tr-red);
}
.trace__card h3 {
  margin: .55cqi 0 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 600;
  font-size: max(24px, 2.25cqi);
  line-height: 1.1;
  color: var(--tr-ink);
}
.trace__badge {
  margin-top: .3cqi;
  display: inline-flex;
  align-items: center;
  gap: .55cqi;
  padding: .65cqi 1.1cqi;
  border-radius: 999px;
  background: var(--tr-chip);
  font: 600 max(12px, .75cqi)/1 'Instrument Sans', system-ui, sans-serif;
  color: var(--tr-red-dark);
  white-space: nowrap;
}
.trace__badge svg { width: max(13px, 1cqi); height: max(13px, 1cqi); fill: currentColor; }
.trace__label { display: block; margin-top: 1.8cqi; font: 400 max(14px, .94cqi)/1.3 'Instrument Sans', system-ui, sans-serif; color: var(--tr-text); }
.trace__form { margin-top: .85cqi; display: flex; gap: .75cqi; }
.trace__input {
  flex: 1;
  min-width: 0;
  box-sizing: border-box;
  height: max(48px, 3.43cqi);
  padding: 0 1.05cqi;
  border: 1.5px solid #E6D6D2;
  border-radius: .65cqi;
  background: #FFFFFF;
  font: 400 max(15px, 1cqi)/1 'Instrument Sans', system-ui, sans-serif;
  color: var(--tr-ink);
  text-transform: uppercase;
}
.trace__input::placeholder { text-transform: none; color: #9A8F8C; }
.trace__input:focus-visible { outline: 2px solid var(--tr-red); outline-offset: 1px; border-color: transparent; }
.trace__btn {
  flex: none;
  height: max(48px, 3.43cqi);
  padding: 0 1.8cqi;
  border: 0;
  border-radius: .65cqi;
  background: var(--tr-red);
  color: #FFFFFF;
  font: 600 max(15px, 1.02cqi)/1 'Instrument Sans', system-ui, sans-serif;
  display: inline-flex;
  align-items: center;
  gap: 1.1cqi;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(196, 22, 28, .25);
  transition: background-color .25s, transform .25s;
}
.trace__btn:hover { background: var(--tr-red-dark); transform: translateY(-1px); }
.trace__btn:focus-visible { outline: 2px solid var(--tr-red); outline-offset: 3px; }
.trace__samples { margin-top: 1.1cqi; display: flex; align-items: center; flex-wrap: wrap; gap: .75cqi; }
.trace__samples > span { font: 400 max(13px, .86cqi)/1 'Instrument Sans', system-ui, sans-serif; color: var(--tr-text); margin-right: .1cqi; }
.trace__sample {
  height: max(40px, 2.68cqi);
  padding: 0 1.3cqi;
  border: 1.5px solid transparent;
  border-radius: 999px;
  background: var(--tr-chip);
  color: var(--tr-red-dark);
  font: 700 max(13px, .86cqi)/1 'Instrument Sans', system-ui, sans-serif;
  letter-spacing: .02em;
  cursor: pointer;
  transition: background-color .2s, color .2s, border-color .2s;
}
.trace__sample:hover { border-color: #EDB9B2; }
.trace__sample[aria-pressed="true"] { background: var(--tr-red); color: #FFFFFF; }
.trace__sample:focus-visible { outline: 2px solid var(--tr-red); outline-offset: 2px; }

/* result */
.trace__result { margin-top: 1.6cqi; padding-top: 1.5cqi; border-top: 1px solid var(--tr-line); }
.trace__result[hidden] { display: none; }
.trace__res-head { display: flex; justify-content: space-between; align-items: center; gap: 1cqi; }
.trace__res-head strong { font-family: 'Fraunces', Georgia, serif; font-variation-settings: "opsz" 40; font-weight: 600; font-size: max(18px, 1.3cqi); color: var(--tr-ink); }
.trace__verified { padding: .45cqi .9cqi; border-radius: 999px; background: var(--tr-red); color: #FFFFFF; font: 700 max(12px, .75cqi)/1 'Instrument Sans', system-ui, sans-serif; white-space: nowrap; }
.trace__fields { margin: 1.1cqi 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6cqi; }
.trace__fields div { padding: .8cqi .95cqi; border-radius: .65cqi; background: #FCF0ED; }
.trace__fields dt { font: 600 max(11px, .72cqi)/1.2 'Instrument Sans', system-ui, sans-serif; color: #7A6E6B; }
.trace__fields dd { margin: .2cqi 0 0; font: 700 max(14px, .92cqi)/1.3 'Instrument Sans', system-ui, sans-serif; color: var(--tr-ink); }
.trace__timeline { list-style: none; margin: 1.1cqi 0 0; padding: 0; display: grid; gap: .1cqi; }
.trace__timeline li { display: grid; grid-template-columns: max(14px, .95cqi) 1fr auto; align-items: center; gap: .9cqi; padding: .45cqi 0; font: 500 max(14px, .92cqi)/1.3 'Instrument Sans', system-ui, sans-serif; color: var(--tr-ink); }
.trace__timeline li::before { content: ""; width: max(12px, .8cqi); height: max(12px, .8cqi); border-radius: 50%; background: var(--tr-red); }
.trace__timeline li.is-pending::before { background: #FFFFFF; box-shadow: inset 0 0 0 2px var(--tr-red); }
.trace__timeline span { color: #7A6E6B; font-weight: 400; }
.trace__notfound { margin: 1.6cqi 0 0; padding-top: 1.5cqi; border-top: 1px solid var(--tr-line); font: 400 max(14px, .94cqi)/1.5 'Instrument Sans', system-ui, sans-serif; color: var(--tr-text); }
.trace__notfound[hidden] { display: none; }

/* ---------- reveal ---------- */
.trace [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.trace [data-reveal].is-in { opacity: 1; transform: none; }
.trace__right[data-reveal] { transition-delay: .15s; }

/* ---------- responsive ---------- */
@media (max-width: 1099px) {
  .trace { background: var(--tr-bg); }
  .trace::before { display: none; }
  .trace__inner { min-height: 0; padding: 48px 28px 52px; grid-template-columns: 1fr; row-gap: 32px; }
  .trace__title { font-size: clamp(34px, 6vw, 52px); }
  .trace__lede { max-width: 38rem; margin-top: 14px; }
  .trace__steps { margin-top: 24px; gap: 16px; }
  .trace__steps::before { left: 22px; }
  .trace__step { grid-template-columns: 44px 30px minmax(0, 1fr); column-gap: 16px; }
  .trace__step-icon { box-shadow: 0 0 0 5px var(--tr-bg); }
  .trace__step-num { margin-top: 10px; }
  .trace__right { padding: 200px 0 0; }
  .trace__right::before {
    content: "";
    position: absolute;
    left: -28px; right: -28px; top: 0; height: 300px;
    background: url("../assets/img/trace/trace-bg.webp") 88% 40% / cover no-repeat;
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%), linear-gradient(180deg, #000 60%, transparent 100%);
    -webkit-mask-composite: source-in;
            mask-image: linear-gradient(90deg, transparent 0%, #000 45%), linear-gradient(180deg, #000 60%, transparent 100%);
            mask-composite: intersect;
  }
  .trace__deco, .trace__float { display: none; }
  .trace__card { width: 100%; padding: 26px 24px 22px; border-radius: 18px; }
  .trace__card h3 { margin-top: 6px; }
  .trace__label { margin-top: 18px; }
  .trace__form { margin-top: 10px; gap: 10px; }
  .trace__input { padding: 0 14px; border-radius: 10px; }
  .trace__btn { padding: 0 20px; border-radius: 10px; gap: 10px; }
  .trace__samples { margin-top: 14px; gap: 8px; }
  .trace__sample { padding: 0 14px; }
  .trace__result, .trace__notfound { margin-top: 18px; padding-top: 16px; }
  .trace__fields { margin-top: 12px; gap: 8px; }
  .trace__fields div { padding: 10px 12px; border-radius: 10px; }
  .trace__timeline { margin-top: 12px; }
  .trace__timeline li { gap: 10px; padding: 6px 0; }
}
@media (max-width: 639px) {
  .trace__inner { padding: 40px 20px 44px; }
  .trace__title { font-size: clamp(30px, 8.6vw, 40px); }
  .trace__title span { white-space: normal; display: inline; }
  .trace__right { padding-top: 150px; }
  .trace__right::before { left: -20px; right: -20px; height: 230px; }
  .trace__form { flex-direction: column; }
  .trace__input { flex: none; width: 100%; }
  .trace__btn { justify-content: center; }
  .trace__fields { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .trace *, .trace [data-reveal] { transition: none !important; }
  .trace [data-reveal] { opacity: 1; transform: none; }
}