/* ============================================================
   Sastena — Feasibility Study & PDD page
   1:1 faithful rebuild of Fairatmos' /fs-pdd page, Sastena
   green/dark theme. All classes are .fp-* prefixed to avoid
   collisions with home (.s-*), about (.a-*) and our-tech (.t-*).
   Reuses :root tokens + .s-* utilities from styles.css.

   Flow: hero -> grounded-in-standards -> Streamlining (FS + PDD
   cards over a held background) -> stats -> ecosystems + SE-Asia
   map -> cream service cards (Climate/Community/Biodiversity) ->
   Accelerating Concepts -> Get a Free Sample -> Start Assessing CTA.
   ============================================================ */

/* current-page marker in the "Our Services" dropdown */
.s-pop-item--link[aria-current="page"] .s-pop-title { color: var(--leaf); }
.s-pop-item--link[aria-current="page"] .s-pop-arrow { color: var(--leaf); }

/* shared circle-arrow icon inside CTAs (Fairatmos pill + leading arrow) */
.fp-btn-arrow { padding-left: 18px; }
.fp-btn-ico { display: inline-flex; }
.fp-btn-ico svg { width: 20px; height: 20px; display: block; }

/* ============================================================
   1. HERO
   ============================================================ */
.fp-hero {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--deep);
  display: flex;
}
.fp-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  z-index: 0;
}
.fp-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(11, 20, 14, 0.86) 0%,
    rgba(15, 26, 18, 0.34) 26%,
    rgba(15, 26, 18, 0.40) 58%,
    rgba(11, 20, 14, 0.88) 100%
  );
  pointer-events: none;
}
.fp-hero-inner {
  position: relative;
  z-index: 2;
  align-self: center;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: clamp(150px, 20vh, 230px);
  padding-bottom: clamp(150px, 18vh, 210px);
}
.fp-hero-title {
  font-size: clamp(2.5rem, 5.4vw, 4.7rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: #fff;
  margin: 0 0 26px;
}
.fp-hero-title span { display: block; text-wrap: balance; }
.fp-hero-lede {
  font-size: clamp(1.02rem, 1.3vw, 1.28rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
  max-width: 54ch;
  margin: 0 0 36px;
}
.fp-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ============================================================
   2. GROUNDED IN STANDARDS
   ============================================================ */
.fp-intro {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(11, 20, 14, 0.9), rgba(11, 20, 14, 0.78)),
    url("assets/web/drone/drone-13.jpg") center / cover no-repeat;
  padding: clamp(80px, 12vw, 170px) 0 clamp(70px, 9vw, 130px);
}
.fp-intro-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 120% at 85% 50%, rgba(15, 26, 18, 0) 0%, rgba(11, 20, 14, 0.55) 100%);
  pointer-events: none;
}
.fp-intro-inner { position: relative; z-index: 1; }
.fp-intro-lead { max-width: 60ch; }
.fp-intro-h2 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 22px;
}
.fp-intro-sub {
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.7;
  max-width: 64ch;
  margin-bottom: 30px;
}
.fp-intro-bold {
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  font-weight: 700;
  color: #fff;
  max-width: 60ch;
}

/* ============================================================
   3. STREAMLINING — FS + PDD over a held (sticky) background
   ============================================================ */
.fp-streamline {
  position: relative;
  isolation: isolate;
  background: var(--deep-2);
}
/* sticky layers collapse to net-zero height (margin -100vh) so the
   inner content scrolls over a pinned photo — pure CSS, no JS. */
.fp-streamline-bg,
.fp-streamline-scrim {
  position: sticky;
  top: 0;
  height: 100vh;
  margin-bottom: -100vh;
  z-index: 0;
  pointer-events: none;
}
.fp-streamline-bg {
  background: url("assets/web/drone/drone-03.jpg") center / cover no-repeat;
}
.fp-streamline-scrim {
  background: linear-gradient(180deg, rgba(8, 16, 11, 0.74) 0%, rgba(8, 16, 11, 0.82) 50%, rgba(8, 16, 11, 0.9) 100%);
}
.fp-streamline-inner {
  position: relative;
  z-index: 1;
  padding: clamp(70px, 9vw, 130px) 24px clamp(80px, 10vw, 150px);
}

.fp-stream-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 80px);
  align-items: start;
  margin-bottom: clamp(60px, 8vw, 120px);
}
.fp-stream-title {
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #fff;
}
.fp-stream-sub {
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(0.98rem, 1.1vw, 1.08rem);
  line-height: 1.7;
  max-width: 52ch;
  align-self: center;
}

/* FS / PDD blocks: aside (heading) + 3 cards */
.fp-block {
  display: grid;
  grid-template-columns: 0.85fr 2.15fr;
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
}
.fp-block + .fp-block { margin-top: clamp(70px, 9vw, 130px); }
.fp-block--rev { grid-template-columns: 2.15fr 0.85fr; }
.fp-block--rev .fp-block-aside { order: 2; }
.fp-block--rev .fp-cards { order: 1; }

.fp-block-title {
  font-size: clamp(1.7rem, 3vw, 2.7rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 18px;
}
.fp-block-line {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1rem;
  line-height: 1.6;
  max-width: 34ch;
}

.fp-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.8vw, 24px);
}
.fp-card {
  display: flex;
  flex-direction: column;
  min-height: 330px;
  padding: clamp(22px, 2vw, 30px);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(18, 30, 23, 0.42);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 50px rgba(3, 12, 7, 0.3);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.fp-card:hover {
  transform: translateY(-5px);
  background: rgba(22, 36, 28, 0.55);
  border-color: rgba(93, 204, 93, 0.4);
}
.fp-card-ico {
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  margin-bottom: clamp(40px, 6vw, 70px);
}
.fp-card:hover .fp-card-ico { color: var(--leaf); border-color: var(--leaf); }
.fp-card-ico svg { width: 24px; height: 24px; display: block; }
.fp-card-title {
  font-size: 1.18rem;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 14px;
  min-height: 2.4em;
}
.fp-card-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
}
/* staggered reveal for cards */
.fp-card[data-reveal] { transition-delay: calc(var(--i, 0) * 100ms); }

/* ============================================================
   4. DIVERSE RANGE / STATS
   ============================================================ */
.fp-stats {
  position: relative;
  overflow: hidden;
  background: #14100a;
  padding: clamp(70px, 9vw, 130px) 0;
}
.fp-stats-overlay {
  position: absolute;
  inset: 0;
  background: url("assets/web/drone/drone-06.jpg") center / cover no-repeat;
  opacity: 0.26;
  pointer-events: none;
}
.fp-stats .s-dots {
  -webkit-mask-image: radial-gradient(130% 100% at 70% 30%, #000, transparent 78%);
          mask-image: radial-gradient(130% 100% at 70% 30%, #000, transparent 78%);
}
.fp-stats-inner { position: relative; z-index: 1; }

.fp-stats-head {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(30px, 5vw, 80px);
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 40px);
}
.fp-stats-h2 {
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #fff;
  max-width: 18ch;
}
.fp-stats-head-side { align-self: center; }
.fp-stats-lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 26px;
  max-width: 52ch;
}

.fp-stats-divider { border: 0; border-top: 1px solid rgba(255, 255, 255, 0.16); margin: clamp(34px, 5vw, 60px) 0; }

.fp-stat-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(30px, 5vw, 80px);
  align-items: center;
}
.fp-stat-figure { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.fp-stat-num {
  font-size: clamp(3.4rem, 9vw, 7rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.fp-stat-unit {
  font-size: clamp(1.4rem, 2.6vw, 2.2rem);
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
}
.fp-stat-unit sub { font-size: 0.62em; }
.fp-stat-desc {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.02rem;
  line-height: 1.6;
  max-width: 46ch;
}

/* ============================================================
   5. ECOSYSTEMS + CURATED EXPERIENCES MAP
   ============================================================ */
.fp-map {
  position: relative;
  background: linear-gradient(180deg, var(--deep-2), var(--deep));
  padding: clamp(70px, 9vw, 130px) 0 clamp(40px, 6vw, 80px);
  overflow: hidden;
}
.fp-map-head {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(30px, 5vw, 80px);
  align-items: end;
}
.fp-map-h2 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: #fff;
}
.fp-map-sub {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 46ch;
}
.fp-map-divider { border: 0; border-top: 1px solid rgba(255, 255, 255, 0.14); margin: clamp(30px, 4vw, 50px) 0 clamp(36px, 5vw, 60px); }
.fp-map-curated {
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}
.fp-map-graphic { width: 100%; }
.fp-map-graphic svg { width: 100%; height: auto; display: block; }

/* gentle pin pulse */
@keyframes fp-pin-pulse {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.fp-pin { transform-box: fill-box; transform-origin: center bottom; }
.fp-map-graphic.is-visible .fp-pin { animation: fp-pin-pulse 2.6s ease-in-out infinite; }
.fp-map-graphic.is-visible .fp-pins > g:nth-child(2) .fp-pin { animation-delay: 0.3s; }
.fp-map-graphic.is-visible .fp-pins > g:nth-child(3) .fp-pin { animation-delay: 0.6s; }
.fp-map-graphic.is-visible .fp-pins > g:nth-child(4) .fp-pin { animation-delay: 0.9s; }
.fp-map-graphic.is-visible .fp-pins > g:nth-child(5) .fp-pin { animation-delay: 1.2s; }

/* ============================================================
   6. SERVICE CARDS (cream)
   ============================================================ */
.fp-services {
  background: var(--cream);
  padding: clamp(60px, 8vw, 110px) 0;
}
.fp-services .s-container { display: grid; gap: clamp(24px, 3vw, 40px); }
.fp-service {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: clamp(420px, 50vw, 560px);
  display: flex;
  align-items: flex-end;
  box-shadow: 0 30px 60px rgba(20, 30, 18, 0.18);
}
.fp-service-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  transition: transform 0.6s ease;
}
.fp-service:hover .fp-service-bg { transform: scale(1.04); }
.fp-service-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(8, 16, 11, 0.05) 30%, rgba(8, 16, 11, 0.82) 100%);
}
.fp-service-content {
  position: relative;
  z-index: 2;
  padding: clamp(28px, 4vw, 56px);
  max-width: 760px;
}
.fp-service-title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1.05;
  margin-bottom: 14px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.35);
}
.fp-service-sub {
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(1rem, 1.3vw, 1.18rem);
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 22px;
  max-width: 60ch;
}
.fp-tags { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.fp-tag {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: var(--pill);
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.06);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
}

/* ============================================================
   7. ACCELERATING CONCEPTS (cream)
   ============================================================ */
.fp-accel {
  background: var(--cream);
  padding: clamp(40px, 5vw, 70px) 0 clamp(60px, 8vw, 110px);
}
.fp-accel-head { max-width: 60ch; margin-bottom: clamp(36px, 5vw, 60px); }
.fp-accel-h2 {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 18px;
}
.fp-accel-sub {
  color: #4a5a4f;
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 1.7;
}
.fp-accel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(22px, 3vw, 40px);
}
.fp-accel-card { display: flex; flex-direction: column; }
.fp-accel-card[data-reveal] { transition-delay: calc(var(--i, 0) * 100ms); }
.fp-accel-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 16 / 11;
  background: var(--deep-3);
  margin-bottom: 22px;
  box-shadow: 0 18px 40px rgba(20, 30, 18, 0.16);
}
.fp-accel-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.fp-accel-card:hover .fp-accel-media img { transform: scale(1.05); }
.fp-accel-card-title {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 10px;
}
.fp-accel-card-desc { color: #4a5a4f; font-size: 0.98rem; line-height: 1.6; max-width: 40ch; }

/* ============================================================
   8. GET A FREE SAMPLE (cream)
   ============================================================ */
.fp-sample {
  background: var(--cream);
  padding: 0 0 clamp(60px, 8vw, 110px);
}
.fp-sample-banner {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: clamp(300px, 34vw, 380px);
  display: flex;
  align-items: center;
  box-shadow: 0 30px 60px rgba(20, 30, 18, 0.2);
}
.fp-sample-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 35%; z-index: 0; }
.fp-sample-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(8, 16, 11, 0.9) 0%, rgba(8, 16, 11, 0.62) 48%, rgba(8, 16, 11, 0.1) 100%);
}
.fp-sample-content { position: relative; z-index: 2; padding: clamp(30px, 5vw, 64px); max-width: 620px; }
.fp-sample-eyebrow { display: block; color: rgba(255, 255, 255, 0.9); font-size: 1rem; font-weight: 600; margin-bottom: 10px; }
.fp-sample-title {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--leaf);
  margin-bottom: 16px;
}
.fp-sample-text { color: rgba(255, 255, 255, 0.9); font-size: 1.05rem; line-height: 1.6; margin-bottom: 26px; max-width: 46ch; }

/* ============================================================
   9. START ASSESSING CTA
   ============================================================ */
.fp-cta {
  position: relative;
  overflow: hidden;
  min-height: clamp(440px, 60vh, 620px);
  display: flex;
  align-items: center;
}
.fp-cta-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 40%; z-index: 0; }
.fp-cta-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(8, 16, 11, 0.86) 0%, rgba(8, 16, 11, 0.55) 50%, rgba(8, 16, 11, 0.2) 100%);
}
.fp-cta-inner { position: relative; z-index: 2; }
.fp-cta-title {
  font-size: clamp(2.1rem, 4.4vw, 3.6rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: #fff;
  margin-bottom: 16px;
}
.fp-cta-text { color: rgba(255, 255, 255, 0.9); font-size: 1.1rem; margin-bottom: 30px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1080px) {
  .fp-block { grid-template-columns: 1fr; gap: 30px; }
  .fp-block--rev .fp-block-aside { order: 0; }
  .fp-block--rev .fp-cards { order: 0; }
  .fp-block--rev .fp-block-line { margin-left: 0; }
  .fp-block-line { max-width: 52ch; }
}

@media (max-width: 920px) {
  .fp-hero-inner { align-self: flex-end; padding-bottom: clamp(120px, 22vh, 180px); }
  .fp-stream-head { grid-template-columns: 1fr; gap: 18px; }
  .fp-stats-head { grid-template-columns: 1fr; gap: 22px; }
  .fp-stat-row { grid-template-columns: 1fr; gap: 14px; }
  .fp-map-head { grid-template-columns: 1fr; gap: 18px; align-items: start; }
  .fp-cards { grid-template-columns: 1fr; }
  .fp-card { min-height: 0; }
  .fp-card-ico { margin-bottom: 26px; }
  .fp-accel-grid { grid-template-columns: 1fr; max-width: 460px; }
  .fp-accel-card-desc { max-width: none; }
}

@media (max-width: 760px) {
  .fp-service { min-height: 0; }
  .fp-tag { font-size: 0.82rem; padding: 8px 14px; }
}

@media (max-width: 520px) {
  .fp-hero-title { font-size: clamp(2.1rem, 9vw, 2.8rem); }
  .fp-stat-num { font-size: clamp(3rem, 16vw, 4.4rem); }
  .fp-sample-overlay,
  .fp-cta-overlay { background: linear-gradient(180deg, rgba(8, 16, 11, 0.5) 0%, rgba(8, 16, 11, 0.86) 100%); }
}

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .fp-map-graphic.is-visible .fp-pin { animation: none !important; }
  .fp-service:hover .fp-service-bg,
  .fp-accel-card:hover .fp-accel-media img,
  .fp-card:hover { transform: none !important; }
}