/* =====================================================================
   InstaFarm · Chapter 02 "The solution: solar dryers"
   Drop-in component, measured from solar-reference.png (stage = 1536px).
   Inner sizes use container-query units (cqi = 1% of .solar__stage width)
   with px floors for legibility. DO NOT replace cqi with px/vw/clamp.
   Images: assets/img/solar/*.webp (cropped from the client collage).
   ===================================================================== */

.solar {
  --sl-bg: #FCF4F1;
  --sl-ink: #161414;
  --sl-text: #564B48;
  --sl-red: #C4161C;
  --sl-red-dark: #A91218;
  --sl-num: #E58F89;
  --sl-line: #F2DCD7;
  --sl-card: rgba(255, 255, 255, .62);
  --sl-tile: #FCE6E2;

  position: relative;
  overflow: hidden;
  background: var(--sl-bg);
  scroll-margin-top: 80px;
}
/* soft pink waves across the lower half (decorative) */
.solar::before {
  content: "";
  position: absolute;
  inset: 30% 0 0 0;
  background: url("../assets/img/solar/waves-sun.webp") left bottom / 100% auto no-repeat;
  opacity: .30;
  mix-blend-mode: multiply;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 45%);
          mask-image: linear-gradient(180deg, transparent 0%, #000 45%);
  pointer-events: none;
}

.solar__stage {
  container-type: inline-size;
  position: relative;
  max-width: 1600px;
  margin: 0 auto;
}
.solar__inner {
  position: relative;
  z-index: 2;
  padding: 2.86cqi 5.08cqi 3.4cqi;
}

/* ---------- decorative: header photo top-right, handwriting, leaf ---------- */
.solar__photo {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  width: 58.3cqi;
  aspect-ratio: 911 / 378;
  margin: 0;
  pointer-events: none;
}
.solar__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 34%), linear-gradient(180deg, #000 62%, transparent 100%);
  -webkit-mask-composite: source-in;
          mask-image: linear-gradient(90deg, transparent 0%, #000 34%), linear-gradient(180deg, #000 62%, transparent 100%);
          mask-composite: intersect;
}
.solar__script {
  position: absolute;
  left: 40.5%;
  top: 22%;
  margin: 0;
  font: 600 1.5cqi/1.18 'Caveat', 'Segoe Script', cursive;
  color: var(--sl-red);
  transform: rotate(-14deg);
  transform-origin: left top;
}
.solar__script span { display: block; }
.solar__script span:nth-child(2) { margin-left: .35em; }
.solar__script span:nth-child(3) { margin-left: .7em; }
.solar__script span:nth-child(4) { margin-left: 1.05em; }
.solar__leaf {
  position: absolute;
  z-index: 0;
  left: -2cqi;
  top: 52%;
  width: 9cqi;
  opacity: .55;
  filter: blur(5px);
  pointer-events: none;
}

/* ---------- header ---------- */
.solar__head { padding-left: 1.3cqi; max-width: 44cqi; }
.solar__eyebrow {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 1.04cqi;
  font: 700 max(12px, .98cqi)/1 'Instrument Sans', system-ui, sans-serif;
  letter-spacing: .03em;
  text-transform: uppercase;
  color: var(--sl-red);
}
.solar__eyebrow::before { content: ""; width: 2.2cqi; height: 1.5px; background: currentColor; flex: none; }
.solar__title {
  margin: 1.1cqi 0 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 700;
  font-size: max(32px, 4.02cqi);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--sl-ink);
}
.solar__title span { display: block; white-space: nowrap; }
.solar__title em { font-style: normal; color: var(--sl-red); }
.solar__lede {
  margin: .9cqi 0 0;
  max-width: 36.5cqi;
  font: 400 max(15px, 1.17cqi)/1.38 'Instrument Sans', system-ui, sans-serif;
  color: var(--sl-text);
}

/* ---------- 4 step cards + connector ---------- */
.solar__steps-wrap { position: relative; margin-top: 1.8cqi; }
.solar__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.56cqi;
}
.solar__step {
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  min-height: 15.75cqi;
  padding: 1.8cqi 2.2cqi 1.6cqi 2.4cqi;
  background: var(--sl-card);
  border: 1px solid var(--sl-line);
  border-radius: 1.04cqi;
  -webkit-backdrop-filter: blur(6px);
          backdrop-filter: blur(6px);
  box-shadow: 0 10px 30px rgba(150, 60, 50, .05);
  transition: transform .4s cubic-bezier(.2,.7,.2,1), box-shadow .4s cubic-bezier(.2,.7,.2,1);
}
.solar__step-art {
  position: absolute;
  top: 0;
  right: 0;
  width: 74%;
  height: 50%;
  margin: 0;
  pointer-events: none;
}
.solar__step-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% 45%;
  mix-blend-mode: multiply;
  -webkit-mask-image: radial-gradient(closest-side at 55% 50%, #000 50%, transparent 100%);
          mask-image: radial-gradient(closest-side at 55% 50%, #000 50%, transparent 100%);
}
.solar__num {
  position: relative;
  display: block;
  font-family: 'Fraunces', Georgia, serif;
  font-style: italic;
  font-weight: 400;
  font-size: max(22px, 1.95cqi);
  line-height: 1;
  color: var(--sl-num);
}
.solar__step h3 {
  position: relative;
  margin: 3.4cqi 0 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 700;
  font-size: max(19px, 1.56cqi);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--sl-ink);
}
.solar__step p {
  position: relative;
  margin: .7cqi 0 0;
  font: 400 max(14px, 1.1cqi)/1.45 'Instrument Sans', system-ui, sans-serif;
  color: var(--sl-text);
}
@media (hover: hover) {
  .solar__step:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(150, 60, 50, .10); }
}

/* ---------- programme block ---------- */
.solar__prog {
  position: relative;
  margin-top: 1.43cqi;
  min-height: 26.4cqi;
  max-height: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28.45cqi;
  border: 1px solid var(--sl-line);
  border-radius: 1.3cqi;
  overflow: hidden;
  background: #FFFFFF;
  box-shadow: 0 20px 50px rgba(150, 60, 50, .07);
}
.solar__prog-main {
  position: relative;
  overflow: hidden;
  background: linear-gradient(95deg, #FBE0DB 0%, #FCEAE6 38%, #FDF2EF 70%);
}
.solar__prog-main::before {           /* faint wave texture */
  content: "";
  position: absolute;
  inset: 0;
  background: url("../assets/img/solar/waves-sun.webp") left 70% / 120% auto no-repeat;
  opacity: .28;
  mix-blend-mode: multiply;
}
.solar__prog-text {
  position: relative;
  z-index: 2;
  max-width: 38cqi;
  padding: 2.7cqi 0 2.6cqi 3cqi;
}
.solar__prog-text .solar__eyebrow { font-size: max(12px, .98cqi); }
.solar__prog-title {
  margin: 1.3cqi 0 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 700;
  font-size: max(24px, 2.36cqi);
  line-height: 1.15;
  letter-spacing: -.015em;
  color: var(--sl-ink);
}
.solar__prog-title span { display: block; white-space: nowrap; }
.solar__prog-title em { font-style: normal; color: var(--sl-red); }
.solar__prog-lede {
  margin: 1.1cqi 0 0;
  max-width: 33cqi;
  font: 400 max(15px, 1.2cqi)/1.45 'Instrument Sans', system-ui, sans-serif;
  color: var(--sl-text);
}
.solar__prog-ctas { margin-top: 1.5cqi; display: flex; align-items: center; gap: 2.35cqi; flex-wrap: wrap; }
.solar__btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  min-height: max(44px, 3.58cqi);
  padding: 0 2.1cqi;
  border-radius: 999px;
  background: var(--sl-red);
  color: #FFFFFF;
  font: 600 max(15px, 1.1cqi)/1 'Instrument Sans', system-ui, sans-serif;
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(196, 22, 28, .25);
  transition: background-color .3s, transform .3s, box-shadow .3s;
}
.solar__btn:hover { background: var(--sl-red-dark); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(196, 22, 28, .32); color: #FFFFFF; }
.solar__link {
  display: inline-flex;
  flex-direction: column;
  gap: .6cqi;
  color: var(--sl-red);
  font: 600 max(15px, 1.1cqi)/1 'Instrument Sans', system-ui, sans-serif;
  text-decoration: none;
}
.solar__link::after { content: ""; height: 1.5px; background: currentColor; }
.solar__btn:focus-visible, .solar__link:focus-visible { outline: 2px solid var(--sl-red); outline-offset: 4px; }

/* photo with curved left edge */
.solar__prog-photo {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  bottom: 0;
  width: 23.6cqi;
  margin: 0;
}
.solar__prog-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 45% 60%;
  clip-path: ellipse(101% 106% at 100% 100%);
}
.solar__prog-arc {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

/* benefits list */
.solar__benefits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-rows: repeat(4, 1fr);
  background: rgba(255, 255, 255, .92);
}
.solar__benefits li {
  display: flex;
  align-items: center;
  gap: 2cqi;
  padding: 0 2.2cqi;
  border-bottom: 1px solid var(--sl-line);
}
.solar__benefits li:last-child { border-bottom: 0; }
.solar__b-icon {
  flex: none;
  width: max(44px, 4.2cqi);
  height: max(44px, 4.2cqi);
  border-radius: .8cqi;
  background: var(--sl-tile);
  display: grid;
  place-items: center;
  color: var(--sl-red);
}
.solar__b-icon svg { width: 44%; height: 44%; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.solar__benefits h4 {
  margin: 0;
  font-family: 'Fraunces', Georgia, serif;
  font-variation-settings: "opsz" 40, "SOFT" 0, "WONK" 0;
  font-weight: 700;
  font-size: max(15px, 1.12cqi);
  line-height: 1.25;
  color: var(--sl-ink);
}
.solar__benefits p {
  margin: .35cqi 0 0;
  font: 400 max(13px, .95cqi)/1.4 'Instrument Sans', system-ui, sans-serif;
  color: var(--sl-text);
}

/* ---------- reveal ---------- */
.solar [data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.solar [data-reveal].is-in { opacity: 1; transform: none; }
.solar__step[data-reveal]:nth-child(2) { transition-delay: .08s; }
.solar__step[data-reveal]:nth-child(3) { transition-delay: .16s; }
.solar__step[data-reveal]:nth-child(4) { transition-delay: .24s; }

/* ---------- responsive ---------- */
@media (max-width: 1099px) {
  .solar__inner { padding: 0 28px 48px; }
  .solar__photo { position: relative; width: 100%; margin: 0; }
  .solar__photo img { -webkit-mask-image: linear-gradient(180deg, #000 60%, transparent 100%); mask-image: linear-gradient(180deg, #000 60%, transparent 100%); }
  .solar__script { font-size: 22px; left: 46%; top: 16%; }
  .solar__head { max-width: none; padding-left: 0; margin-top: -40px; }
  .solar__lede { max-width: 40rem; }
  .solar__steps-wrap { margin-top: 28px; }
  .solar__steps { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  .solar__step { min-height: 220px; padding: 22px; border-radius: 16px; }
  .solar__step h3 { margin-top: 64px; }
  .solar__step p { margin-top: 8px; }
  .solar__prog { grid-template-columns: 1fr; margin-top: 16px; border-radius: 18px; }
  .solar__prog-text { max-width: none; padding: 30px 28px 26px; }
  .solar__prog-title { font-size: clamp(24px, 4.2vw, 34px); }
  .solar__prog-title span { white-space: normal; display: inline; }
  .solar__prog-lede { max-width: 40rem; }
  .solar__prog-photo { position: relative; width: 100%; height: 260px; }
  .solar__prog-photo img { clip-path: none; }
  .solar__prog-arc { display: none; }
  .solar__benefits li { padding: 18px 24px; gap: 18px; }
  .solar__leaf { display: none; }
}
@media (max-width: 639px) {
  .solar__inner { padding: 0 20px 40px; }
  .solar__photo { width: 140%; margin-left: -40%; }
  .solar__script { font-size: 18px; left: 44%; top: 20%; }
  .solar__head { margin-top: -24px; }
  .solar__title { font-size: clamp(32px, 9vw, 40px); }
  .solar__title span { white-space: normal; }
  .solar__steps { grid-template-columns: 1fr; }
  .solar__step { min-height: 0; }
  .solar__step-art { width: 62%; height: 110px; }
  .solar__step h3 { margin-top: 70px; }
  .solar__prog-text { padding: 26px 22px 22px; }
  .solar__prog-ctas { gap: 20px; }
  .solar__prog-photo { height: 220px; }
  .solar__benefits li { padding: 16px 20px; }
}

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