/* =========================
   Sustainability (RIS)
   Clean, modern, compact
========================= */

:root{
  --ink:#0f1419;
  --muted:#5d6772;
  --line:#e3e7eb;
  --soft:#f5f7f9;

  --brand:#ffb018;
  --blue:#0a9adf;

  --radius:18px;
  --shadow: 0 14px 40px rgba(15,20,25,.10);
  --shadow2: 0 10px 26px rgba(15,20,25,.08);
}

.susBody{
  background:#fff;
  color:var(--ink);
}

/* =========================
   HERO
========================= */

.susHero{
  position:relative;
  overflow:hidden;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.susHero__media{
  position:absolute;
  inset:0;
}

.susHero__img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transform: scale(1.03);
  filter: saturate(1.05) contrast(1.03);
}

.susHero__overlay{
  position:absolute;
  inset:0;
  background:
    radial-gradient(900px 450px at 30% 35%, rgba(10,154,223,.25), transparent 60%),
    linear-gradient(90deg, rgba(15,20,25,.86), rgba(15,20,25,.35));
}

.susHero__grain{
  position:absolute;
  inset:0;
  opacity:.18;
  mix-blend-mode: overlay;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,.06), rgba(255,255,255,.06) 1px, transparent 1px, transparent 3px);
}

.susHero__content{
  position:relative;
  color:#fff;
  padding: clamp(64px, 7vw, 96px) 0 clamp(70px, 7vw, 100px);
}

.susHero__inner{
  max-width: 820px;
}

.susHero__kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  font-weight:900;
  letter-spacing:.14em;
  text-transform:uppercase;
  opacity:.92;
}

.susHero__kicker::before{
  content:"";
  width:10px; height:10px;
  border-radius:50%;
  background: var(--brand);
  box-shadow: 0 0 0 6px rgba(255,176,24,.16);
}

.susHero__title{
  margin: 14px 0 10px;
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.04;
  font-weight: 950;
  letter-spacing:-.02em;
}

.susHero__sub{
  margin: 0;
  max-width: 62ch;
  line-height: 1.7;
  color: rgba(255,255,255,.90);
  font-size: 15px;
}

.susHero__actions{
  margin-top: 18px;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.susBtn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 900;
  font-size: 13px;
  text-decoration:none;
  transition: transform .15s ease, filter .15s ease, background .15s ease, border-color .15s ease;
  will-change: transform;
}

.susBtn--solid{
  background: var(--brand);
  color:#121416;
  box-shadow: 0 14px 30px rgba(255,176,24,.20);
}

.susBtn--ghost{
  border:1px solid rgba(255,255,255,.35);
  color:#fff;
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(8px);
}

@media (hover:hover){
  .susBtn:hover{ transform: translateY(-2px); filter: brightness(1.02); }
  .susBtn--ghost:hover{ border-color: rgba(255,255,255,.55); }
}

/* quick badges */
.susBadges{
  margin-top: 18px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.susBadge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  color: rgba(255,255,255,.90);
  font-size: 13px;
  backdrop-filter: blur(8px);
}

.susDot{
  width:8px; height:8px;
  border-radius:50%;
  background: var(--blue);
  box-shadow: 0 0 0 6px rgba(10,154,223,.14);
}

/* =========================
   Section Head
========================= */
.susHead{
  max-width: 820px;
  margin: 0 auto 14px;
}

.susHead h2{
  margin:0 0 8px;
  font-size: 24px;
  font-weight: 950;
  letter-spacing:-.02em;
  color: var(--ink);
}

.susHead p{
  margin:0;
  color: var(--muted);
  line-height: 1.7;
}

/* =========================
   IMPACT (KPIs)
========================= */
.susImpact{
  padding: 54px 0;
  background: #fff;
}

.susImpact__grid{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.susKpi{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow2);
}

.susKpi__num{
  display:flex;
  align-items:baseline;
  gap:6px;
  font-size: 34px;
  font-weight: 950;
  letter-spacing:-.03em;
}

.susKpi__plus{
  font-size: 16px;
  font-weight: 900;
  color: var(--muted);
}

.susKpi__label{
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* =========================
   PILLARS
========================= */
.susPillars{
  padding: 54px 0;
  background: var(--soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.susPillars__grid{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.susPillar{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow2);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.susPillar__top{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 8px;
}

.susPillar__icon{
  width:34px; height:34px;
  display:grid;
  place-items:center;
  border-radius: 12px;
  background: rgba(10,154,223,.10);
  color: var(--blue);
  border: 1px solid rgba(10,154,223,.18);
  font-size: 10px;
}

.susPillar h3{
  margin:0;
  font-size: 15px;
  font-weight: 950;
  letter-spacing:-.01em;
}

.susPillar p{
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 13px;
}

.susPillar ul{
  margin: 0;
  padding-left: 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.susPillar li{ margin: 6px 0; }

@media (hover:hover){
  .susPillar:hover{
    transform: translateY(-3px);
    border-color: rgba(15,20,25,.16);
    box-shadow: var(--shadow);
  }
}

/* =========================
   STEPS (process strip)
========================= */
.susSteps{
  padding: 44px 0;
  background:#fff;
}

.susSteps__bar{
  display:grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 12px;
  align-items:center;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 16px;
  box-shadow: var(--shadow2);
  background:
    linear-gradient(180deg, #fff, #fff);
}

.susSteps__line{
  height: 2px;
  width: 34px;
  background: linear-gradient(90deg, rgba(15,20,25,.12), rgba(15,20,25,.04));
  border-radius: 99px;
}

.susStep{
  display:grid;
  gap: 6px;
  align-content:start;
}

.susStep__n{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  display:grid;
  place-items:center;
  font-weight: 950;
  background: rgba(255,176,24,.14);
  border: 1px solid rgba(255,176,24,.24);
}

.susStep__t{
  font-weight: 950;
  font-size: 13px;
}

.susStep__d{
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

/* =========================
   PROGRAMS
========================= */
.susPrograms{
  padding: 54px 0;
  background: var(--soft);
}

.susPrograms__grid{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.susProgram{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow2);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.susProgram h3{
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 950;
}

.susProgram p{
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}

.susProgram__tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.susProgram__tags span{
  display:inline-flex;
  align-items:center;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 12px;
  color: var(--muted);
}

@media (hover:hover){
  .susProgram:hover{
    transform: translateY(-3px);
    border-color: rgba(15,20,25,.16);
    box-shadow: var(--shadow);
  }
}

/* =========================
   STANDARDS CHIPS
========================= */
.susStandards{
  padding: 46px 0;
  background:#fff;
  border-top:1px solid var(--line);
}

.susStandards__inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow2);
  background:
    radial-gradient(700px 260px at 18% 10%, rgba(255,176,24,.14), transparent 60%),
    #fff;
}

.susStandards__title{
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 950;
}

.susStandards__sub{
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.susStandards__chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:flex-end;
}

.susChip{
  display:inline-flex;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(245,247,249,.8);
  color: var(--muted);
  font-size: 12px;
}

/* =========================
   CASE STUDIES
========================= */
.susCases{
  padding: 54px 0;
  background: var(--soft);
  border-top:1px solid var(--line);
}

.susCases__grid{
  margin-top: 18px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.susCase{
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  background:#fff;
  box-shadow: var(--shadow2);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.susCase__media{
  aspect-ratio: 16 / 10;
  background: var(--soft);
}

.susCase__media img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  filter: saturate(1.03) contrast(1.02);
}

.susCase__body{
  padding: 16px;
}

.susCase__body h3{
  margin: 0 0 6px;
  font-size: 14px;
  font-weight: 950;
}

.susCase__body p{
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.susCase__meta{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}

.susCase__meta span{
  display:inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font-size: 12px;
}

@media (hover:hover){
  .susCase:hover{
    transform: translateY(-3px);
    border-color: rgba(15,20,25,.16);
    box-shadow: var(--shadow);
  }
}

/* =========================
   Reveal
========================= */
.is-reveal{
  opacity:0;
  transform: translateY(14px);
  transition: opacity .6s ease, transform .6s ease;
}

.is-reveal.is-in{
  opacity:1;
  transform: translateY(0);
}

/* =========================
   Responsive
========================= */
@media (max-width: 1100px){
  .susImpact__grid{ grid-template-columns: repeat(2, 1fr); }
  .susPrograms__grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 980px){
  .susPillars__grid{ grid-template-columns: 1fr; }
  .susCases__grid{ grid-template-columns: 1fr; }
  .susStandards__inner{ flex-direction: column; }
  .susStandards__chips{ justify-content:flex-start; }
  .susSteps__bar{
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .susSteps__line{ display:none; }
}

@media (max-width: 520px){
  .susHero__actions{ gap:10px; }
  .susBtn{ width:100%; }
  .susBadge{ width:100%; justify-content:flex-start; }
}