:root{
  --canopy-dark:#0B2B1D;
  --canopy-mid:#1F4A34;
  --canopy-line:#3C6B4E;
  --paper:#EDEFE7;
  --paper-dim:#E1E4D8;
  --ink:#141812;
  --warn:#B54B23;
  --type-display:'Fraunces', serif;
  --type-body:'Source Sans 3', sans-serif;
}

*{box-sizing:border-box; margin:0; padding:0;}

html{scroll-behavior:smooth;}

body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--type-body);
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}

.wrap{
  max-width:1120px;
  margin:0 auto;
  padding:0 32px;
}

a{color:inherit;}

h1,h2,h3{font-family:var(--type-display); font-weight:600; letter-spacing:-0.01em; color:var(--canopy-dark);}

/* subtle paper grain */
.grain{
  position:fixed; inset:0; pointer-events:none; z-index:1;
  opacity:0.035;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* header */
.site-header{
  position:sticky; top:0; z-index:10;
  background:rgba(237,239,231,0.9);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(20,24,18,0.1);
}
.header-row{
  display:flex; align-items:center; justify-content:space-between;
  height:68px;
}
.brand{
  font-family:var(--type-display);
  font-weight:600; font-size:1.15rem; color:var(--canopy-dark);
}
nav{display:flex; gap:28px;}
nav a{
  font-size:0.92rem; text-decoration:none; color:var(--canopy-mid);
  font-weight:500;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:border-color .2s ease, color .2s ease;
}
nav a:hover{border-color:var(--canopy-mid);}

/* hero */
.hero{padding:88px 0 56px;}
.eyebrow{
  font-size:0.82rem; text-transform:uppercase; letter-spacing:0.14em;
  color:var(--warn); font-weight:600; margin-bottom:18px;
}
.hero h1{
  font-size:clamp(2.6rem, 6vw, 4.6rem);
  line-height:1.02;
  margin-bottom:24px;
}
.hero-sub{
  max-width:560px;
  font-size:1.12rem;
  color:#3a4a3f;
  margin-bottom:48px;
}

/* signature element: canopy strip */
.canopy-strip{
  display:flex;
  flex-direction:column;
  gap:6px;
  border:1px solid rgba(20,24,18,0.12);
  background:var(--paper-dim);
  padding:20px;
  border-radius:2px;
}
.canopy-row{
  display:flex;
  gap:3px;
  height:22px;
}
.canopy-cell{
  flex:1 1 auto;
  background:var(--canopy-line);
  transform-origin:center;
  transform:scaleY(1);
  opacity:1;
  transition:opacity 1.1s ease, transform 1.1s ease, background-color 1.1s ease;
}
.canopy-cell.cleared{
  opacity:0.12;
  background:var(--paper);
  transform:scaleY(0.35);
}
.strip-labels{
  display:flex; justify-content:space-between;
  font-size:0.8rem; color:var(--canopy-mid); font-weight:600;
  margin-top:10px;
}
.strip-caption{
  margin-top:14px;
  font-size:0.85rem;
  color:#5a6a5e;
  max-width:520px;
}

/* section shared */
section{padding:96px 0;}
.section-lede{
  max-width:560px;
  color:#3a4a3f;
  font-size:1.05rem;
  margin-top:14px;
  margin-bottom:52px;
}
h2{font-size:clamp(1.9rem, 3.4vw, 2.6rem);}

/* causes */
.causes{background:var(--canopy-dark); color:var(--paper);}
.causes h2{color:var(--paper);}
.causes .section-lede{color:#b9c9bd;}
.cause-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:rgba(237,239,231,0.12);
  border:1px solid rgba(237,239,231,0.12);
}
.cause-card{
  background:var(--canopy-dark);
  padding:32px 28px;
}
.cause-mark{
  display:inline-block;
  font-size:0.72rem;
  text-transform:uppercase;
  letter-spacing:0.12em;
  color:var(--warn);
  font-weight:600;
  margin-bottom:16px;
}
.cause-card h3{color:var(--paper); font-size:1.15rem; margin-bottom:10px;}
.cause-card p{color:#c3d1c7; font-size:0.95rem;}

/* effects */
.effects-grid{
  display:flex; flex-direction:column;
}
.effect-row{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:32px;
  padding:26px 0;
  border-top:1px solid rgba(20,24,18,0.14);
}
.effect-row:last-child{border-bottom:1px solid rgba(20,24,18,0.14);}
.effect-row h3{font-size:1.2rem;}
.effect-row p{max-width:560px; color:#3a4a3f;}

/* action */
.action{background:var(--paper-dim);}
.action-list{display:flex; flex-direction:column; gap:2px;}
.action-item{
  background:var(--paper);
  padding:26px 28px;
  border-left:3px solid var(--warn);
}
.action-item h3{font-size:1.1rem; margin-bottom:8px;}
.action-item p{color:#3a4a3f; max-width:620px;}

/* footer */
.site-footer{
  padding:40px 0 60px;
  border-top:1px solid rgba(20,24,18,0.14);
}
.site-footer p{
  font-size:0.82rem;
  color:#697a6d;
  max-width:600px;
}

/* focus visibility */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--warn);
  outline-offset:3px;
}

@media (max-width:760px){
  nav{display:none;}
  .cause-grid{grid-template-columns:1fr;}
  .effect-row{grid-template-columns:1fr; gap:8px;}
  section{padding:64px 0;}
  .hero{padding:56px 0 40px;}
}

@media (prefers-reduced-motion: reduce){
  .canopy-cell{transition:none;}
  html{scroll-behavior:auto;}
}