/* ============================================================
   Earth Retreat Foundation — earthretreatfoundation.com
   Palette: Canopy #14352A | Leaf #3E7C59 | Marigold #D89A2B
            Mist #F3F5F0 | Ink #1C2420 | Bark #6B4F35
   Type: Marcellus (display) / Karla (body) / IBM Plex Mono (labels)
   ============================================================ */

:root{
  --canopy:#14352A;
  --canopy-deep:#0D261E;
  --leaf:#3E7C59;
  --leaf-soft:#DCE9DF;
  --marigold:#D89A2B;
  --mist:#F3F5F0;
  --ink:#1C2420;
  --bark:#6B4F35;
  --white:#FFFFFF;
  --maxw:1180px;
  --radius:10px;
  --shadow:0 14px 40px rgba(20,53,42,.12);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Karla',system-ui,sans-serif;
  color:var(--ink);
  background:var(--mist);
  line-height:1.65;
  font-size:17px;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

h1,h2,h3,.display{font-family:'Marcellus',serif;font-weight:400;line-height:1.15;color:var(--canopy)}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem)}
h3{font-size:1.25rem}

.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--leaf);display:inline-flex;align-items:center;gap:.6rem;
  margin-bottom:.9rem;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--marigold)}

.btn{
  display:inline-block;padding:.85rem 1.9rem;border-radius:999px;
  font-family:'IBM Plex Mono',monospace;font-size:.85rem;letter-spacing:.06em;
  transition:transform .2s ease,background .2s ease,color .2s ease;
  border:1px solid transparent;cursor:pointer;
  text-decoration:none;box-sizing:border-box;
  -moz-appearance:none;appearance:none;
  vertical-align:middle;line-height:1.2;
}
.btn:hover{transform:translateY(-2px)}
.btn-solid{background:var(--marigold);color:var(--canopy-deep)}
.btn-solid:hover{background:#E5AB42}
.btn-ghost{border-color:rgba(255,255,255,.55);color:var(--white)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border-color:var(--canopy);color:var(--canopy)}
.btn-outline:hover{background:var(--canopy);color:var(--white)}

/* ---------- Header ---------- */
header{
  position:sticky;top:0;z-index:50;
  background:rgba(243,245,240,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(20,53,42,.08);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.7rem}
.brand-mark{width:50px;height:50px;border-radius:10px;object-fit:cover;display:block;flex:0 0 auto}
.brand-name{font-family:'Marcellus',serif;font-size:1.12rem;color:var(--canopy);line-height:1.1}
.brand-name span{display:block;font-family:'IBM Plex Mono',monospace;font-size:.6rem;letter-spacing:.22em;color:var(--bark)}
.nav-links{display:flex;gap:1.8rem;list-style:none;align-items:center}
.nav-links a{font-size:.95rem;color:var(--ink);padding:.3rem 0;border-bottom:2px solid transparent;transition:border-color .2s}
.nav-links a:hover,.nav-links a.active{border-color:var(--marigold);color:var(--canopy)}
.nav-cta{margin-left:.5rem;padding:.65rem 1.5rem !important;line-height:1.1 !important;display:inline-flex !important;align-items:center;height:auto !important;white-space:nowrap}
.site-language{
  display:flex;align-items:center;gap:.2rem;margin-left:1rem;padding:.2rem;
  border:1px solid rgba(20,53,42,.18);border-radius:999px;background:var(--white);
}
.site-language button{
  min-width:36px;height:30px;padding:0 .55rem;border:0;border-radius:999px;
  background:transparent;color:var(--canopy);font:600 .72rem 'IBM Plex Mono',monospace;
  cursor:pointer;transition:background .2s ease,color .2s ease;
}
.site-language button.active{background:var(--canopy);color:var(--white)}
.lang-hi{font-family:'Noto Sans Devanagari','Karla',system-ui,sans-serif}
.lang-hi h1,.lang-hi h2,.lang-hi h3,.lang-hi .display,.lang-hi .brand-name{
  font-family:'Noto Sans Devanagari','Marcellus',serif;
}
.lang-hi .eyebrow,.lang-hi .btn,.lang-hi .field label{
  font-family:'Noto Sans Devanagari','IBM Plex Mono',sans-serif;letter-spacing:.04em;
}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:.4rem}
.menu-btn svg{width:26px;height:26px;stroke:var(--canopy)}

/* ---------- Hero (home) ---------- */
.hero{
  position:relative;color:var(--white);
  background:linear-gradient(160deg,var(--canopy-deep) 0%,var(--canopy) 55%,#1C4A38 100%);
  overflow:hidden;
}
.hero .contours{position:absolute;inset:0;opacity:.16;pointer-events:none}
.hero-inner{position:relative;padding:7rem 0 6rem;max-width:720px}
.hero h1{color:var(--white);margin:.4rem 0 1.2rem}
.hero p{font-size:1.12rem;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:2rem}
.hero .eyebrow{color:var(--marigold)}
.hero .eyebrow::before{background:var(--marigold)}
.hero-rotate{min-height:1.2em;display:block}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap}

/* page hero (inner pages) */
.page-hero{
  position:relative;color:var(--white);
  background:linear-gradient(150deg,var(--canopy-deep),var(--canopy));
  overflow:hidden;
}
.page-hero .contours{position:absolute;inset:0;opacity:.14}
.page-hero-inner{position:relative;padding:4.5rem 0 3.5rem}
.page-hero h1{color:var(--white)}
.page-hero p{color:rgba(255,255,255,.8);max-width:600px;margin-top:.8rem}
.page-hero .eyebrow{color:var(--marigold)}

/* ---------- Stats band ---------- */
.stats{background:var(--white);border-bottom:1px solid rgba(20,53,42,.08)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;padding:3rem 0}
.stat{text-align:left;border-left:3px solid var(--marigold);padding-left:1.2rem}
.stat .num{font-family:'Marcellus',serif;font-size:2.6rem;color:var(--canopy);line-height:1}
.stat .label{font-size:.92rem;color:var(--bark);margin-top:.4rem}

/* ---------- Sections ---------- */
section.block{padding:5rem 0}
.block-alt{background:var(--white)}
.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:center}
.lede{font-size:1.08rem;color:#3A453F}
.checklist{list-style:none;margin-top:1.4rem;display:grid;gap:.7rem}
.checklist li{display:flex;gap:.7rem;align-items:flex-start}
.checklist li::before{content:"";flex:0 0 18px;height:18px;margin-top:.25rem;border-radius:50%;
  background:var(--leaf-soft);box-shadow:inset 0 0 0 5px var(--leaf)}

/* image placeholder */
.ph{
  border-radius:var(--radius);overflow:hidden;position:relative;
  background:linear-gradient(135deg,var(--leaf) 0%,var(--canopy) 100%);
  min-height:340px;display:flex;align-items:flex-end;box-shadow:var(--shadow);
}
.ph .contours{position:absolute;inset:0;opacity:.22}
.ph span{
  position:relative;margin:1rem;padding:.35rem .8rem;border-radius:6px;
  background:rgba(13,38,30,.65);color:rgba(255,255,255,.85);
  font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.08em;
}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:2.6rem}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.6rem;margin-top:2.6rem}
.card{
  background:var(--white);border-radius:var(--radius);padding:2rem 1.7rem;
  border:1px solid rgba(20,53,42,.08);box-shadow:0 4px 18px rgba(20,53,42,.05);
  transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;
}
.block-alt .card{background:var(--mist)}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card .icon{
  width:52px;height:52px;border-radius:12px;display:grid;place-items:center;
  background:var(--leaf-soft);margin-bottom:1.1rem;
}
.card .icon svg{width:26px;height:26px;stroke:var(--canopy)}
.card h3{margin-bottom:.6rem}
.card p{font-size:.96rem;color:#3A453F;flex:1}
.card .more{
  margin-top:1.2rem;font-family:'IBM Plex Mono',monospace;font-size:.78rem;
  letter-spacing:.1em;color:var(--leaf);
}
.card .more:hover{color:var(--marigold)}
.card .tag{
  align-self:flex-start;font-family:'IBM Plex Mono',monospace;font-size:.68rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--bark);
  background:rgba(216,154,43,.14);padding:.3rem .7rem;border-radius:999px;margin-bottom:1rem;
}

/* ---------- Team ---------- */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:2.6rem}
.member{background:var(--white);border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(20,53,42,.08);box-shadow:0 4px 18px rgba(20,53,42,.05)}
.member .photo{height:230px;background:linear-gradient(135deg,var(--leaf-soft),#CBDCCF);
  display:grid;place-items:center;color:var(--canopy)}
.member .photo svg{width:64px;height:64px;opacity:.5}
.member .info{padding:1.4rem 1.5rem 1.7rem}
.member .role{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--marigold);margin:.25rem 0 .7rem}
.member p{font-size:.93rem;color:#3A453F}

/* ---------- CTA band ---------- */
.cta{
  position:relative;background:linear-gradient(140deg,var(--canopy-deep),var(--canopy));
  color:var(--white);overflow:hidden;
}
.cta .contours{position:absolute;inset:0;opacity:.15}
.cta-inner{position:relative;padding:4.5rem 0;display:flex;align-items:center;
  justify-content:space-between;gap:2rem;flex-wrap:wrap}
.cta h2{color:var(--white)}
.cta p{color:rgba(255,255,255,.8);margin-top:.5rem;max-width:520px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:3rem;align-items:start}
.contact-card{background:var(--white);border-radius:var(--radius);padding:2.2rem;
  border:1px solid rgba(20,53,42,.08);box-shadow:var(--shadow)}
.field{margin-bottom:1.2rem}
.field label{display:block;font-family:'IBM Plex Mono',monospace;font-size:.74rem;
  letter-spacing:.12em;text-transform:uppercase;color:var(--bark);margin-bottom:.4rem}
.field input,.field textarea,.field select{
  width:100%;padding:.8rem 1rem;border:1px solid rgba(20,53,42,.18);border-radius:8px;
  font-family:'Karla',sans-serif;font-size:.98rem;background:var(--mist);color:var(--ink)
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:2px solid var(--leaf);outline-offset:1px;border-color:var(--leaf)}
.info-line{display:flex;gap:1rem;align-items:flex-start;margin-bottom:1.4rem}
.info-line svg{width:22px;height:22px;stroke:var(--leaf);flex:0 0 auto;margin-top:.2rem}
.info-line strong{display:block;color:var(--canopy)}

/* ---------- Footer ---------- */
footer{background:var(--canopy-deep);color:rgba(255,255,255,.78)}
.foot{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.5rem;padding:4rem 0 3rem}
.foot h4{font-family:'Marcellus',serif;color:var(--white);margin-bottom:1rem;font-size:1.05rem}
.foot ul{list-style:none;display:grid;gap:.55rem;font-size:.94rem}
.foot a:hover{color:var(--marigold)}
.foot .brand-name{color:var(--white)}
.foot p{font-size:.93rem;margin-top:.9rem;max-width:300px}
.foot-bar{border-top:1px solid rgba(255,255,255,.12);padding:1.3rem 0;
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.08em;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .two-col,.contact-grid{grid-template-columns:1fr}
  .grid-3,.team-grid{grid-template-columns:repeat(2,1fr)}
  .foot{grid-template-columns:1fr 1fr}
  .nav-links{gap:1rem}
  .site-language{margin-left:auto;margin-right:.65rem}
}
@media (max-width:640px){
  .grid-3,.grid-2,.team-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:1.4rem}
  .nav-links{
    position:fixed;inset:74px 0 auto 0;background:var(--mist);flex-direction:column;
    padding:1.5rem 24px 2rem;gap:1.1rem;border-bottom:1px solid rgba(20,53,42,.1);
    transform:translateY(-130%);transition:transform .3s ease;align-items:flex-start;
  }
  .nav-links.open{transform:none}
  .menu-btn{display:block}
  .brand-mark{width:46px;height:46px}
  .hero-inner{padding:5rem 0 4.5rem}
  .foot{grid-template-columns:1fr}
}

/* ============================================================
   Additions for real ERF content
   ============================================================ */

/* Objectives icons reuse .card — add accent number */
.obj-num{
  font-family:'IBM Plex Mono',monospace;font-size:.8rem;letter-spacing:.1em;
  color:var(--marigold);margin-bottom:.6rem;display:block;
}

/* Events timeline */
.events{display:grid;gap:1.4rem;margin-top:2.6rem}
.event{
  background:var(--white);border-radius:var(--radius);border:1px solid rgba(20,53,42,.08);
  box-shadow:0 4px 18px rgba(20,53,42,.05);padding:1.8rem 1.9rem;
  display:grid;grid-template-columns:150px 1fr;gap:1.6rem;align-items:start;
  transition:transform .25s ease,box-shadow .25s ease;
}
.block-alt .event{background:var(--mist)}
.event:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.event .date{
  border-right:2px solid var(--leaf-soft);padding-right:1.2rem;
}
.event .date .d{font-family:'Marcellus',serif;font-size:1.9rem;color:var(--canopy);line-height:1}
.event .date .m{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--bark);margin-top:.3rem}
.event h3{margin-bottom:.5rem}
.event .meta{font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--leaf);margin-bottom:.7rem}
.event p{font-size:.97rem;color:#3A453F}
.event .partners{font-size:.86rem;color:var(--bark);margin-top:.7rem}
@media (max-width:640px){
  .event{grid-template-columns:1fr;gap:.8rem}
  .event .date{border-right:none;border-bottom:2px solid var(--leaf-soft);padding:0 0 .8rem;
    display:flex;align-items:baseline;gap:.6rem}
}

/* Reach grid (villages/districts) */
.reach-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;margin-top:2.4rem}
.reach{
  background:var(--white);border-left:3px solid var(--marigold);border-radius:8px;
  padding:1.1rem 1.3rem;box-shadow:0 4px 14px rgba(20,53,42,.05);
}
.block-alt .reach{background:var(--mist)}
.reach .v{font-family:'Marcellus',serif;font-size:1.12rem;color:var(--canopy)}
.reach .dist{font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--bark);margin-top:.25rem}
@media (max-width:900px){.reach-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.reach-grid{grid-template-columns:1fr}}

/* Quote band */
.quote{background:var(--white);border-top:1px solid rgba(20,53,42,.08);border-bottom:1px solid rgba(20,53,42,.08)}
.quote-inner{padding:4rem 0;text-align:center;max-width:760px;margin:0 auto}
.quote blockquote{font-family:'Marcellus',serif;font-size:clamp(1.4rem,3vw,2rem);
  color:var(--canopy);line-height:1.4}
.quote .by{font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--marigold);margin-top:1.4rem}

/* Partner logos / strip */
.partners-strip{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2.2rem}
.partner-chip{
  font-family:'IBM Plex Mono',monospace;font-size:.8rem;letter-spacing:.04em;
  background:var(--leaf-soft);color:var(--canopy);padding:.55rem 1rem;border-radius:999px;
}

/* ============================================================
   Animated theme illustrations (Climate, Plastic, Trees,
   Biodiversity, Capacity building)
   ============================================================ */
.illo-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  background:linear-gradient(135deg,#EAF1EC,#F3F5F0);position:relative}
.illo{display:block;width:100%;height:auto}
.illo-card{height:186px}
.illo-card .illo{height:186px;width:100%}

/* Keyframes */
@keyframes spinSlow{to{transform:rotate(360deg)}}
@keyframes corePulse{0%,100%{transform:scale(1)}50%{transform:scale(1.08)}}
@keyframes mercRise{0%,100%{transform:scaleY(.5)}50%{transform:scaleY(1)}}
@keyframes drift{0%{transform:translateX(-60px)}100%{transform:translateX(460px)}}
@keyframes sway{0%{transform:rotate(-2.2deg)}100%{transform:rotate(2.2deg)}}
@keyframes shimmer{0%,100%{opacity:.55}50%{opacity:1}}
@keyframes drop{0%{transform:translateY(-6px);opacity:0}15%{opacity:1}100%{transform:translateY(46px);opacity:0}}
@keyframes flyAcross{0%{transform:translate(-50px,40px)}100%{transform:translate(440px,24px)}}
@keyframes flap{0%,100%{transform:scaleY(1)}50%{transform:scaleY(.35)}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes wing{0%,100%{transform:scaleX(1)}50%{transform:scaleX(.5)}}
@keyframes bloom{0%,100%{transform:scale(.82)}50%{transform:scale(1.05)}}
@keyframes glow{0%,100%{opacity:.35}50%{opacity:1}}
@keyframes ripple{0%{transform:scale(.2);opacity:.7}100%{transform:scale(1.6);opacity:0}}
@keyframes barUp{0%{transform:scaleY(.15)}100%{transform:scaleY(1)}}
@keyframes spinRev{to{transform:rotate(-360deg)}}
@keyframes fadeSwap{0%,45%{opacity:1}55%,100%{opacity:0}}
@keyframes fadeSwap2{0%,45%{opacity:0}55%,100%{opacity:1}}

.anim [data-spin]{animation:spinSlow 26s linear infinite;transform-box:fill-box;transform-origin:center}
.anim [data-core]{animation:corePulse 3s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.anim [data-merc]{animation:mercRise 4s ease-in-out infinite;transform-box:fill-box;transform-origin:bottom}
.anim [data-cloud]{animation:drift 22s linear infinite}
.anim [data-sway]{animation:sway 4s ease-in-out infinite alternate;transform-box:fill-box;transform-origin:bottom}
.anim [data-shimmer]{animation:shimmer 3.2s ease-in-out infinite}
.anim [data-drop]{animation:drop 2.4s ease-in infinite;transform-box:fill-box}
.anim [data-bird]{animation:flyAcross 9s linear infinite}
.anim [data-flap]{animation:flap 0.5s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.anim [data-bob]{animation:bob 3.5s ease-in-out infinite;transform-box:fill-box}
.anim [data-wing]{animation:wing 0.45s ease-in-out infinite;transform-box:fill-box;transform-origin:right}
.anim [data-bloom]{animation:bloom 3.8s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
.anim [data-glow]{animation:glow 2.4s ease-in-out infinite}
.anim [data-ripple]{animation:ripple 3s ease-out infinite;transform-box:fill-box;transform-origin:center}
.anim [data-bar]{animation:barUp 2.6s ease-in-out infinite alternate;transform-box:fill-box;transform-origin:bottom}
.anim [data-spinrev]{animation:spinRev 24s linear infinite;transform-box:fill-box;transform-origin:center}
.anim [data-swap1]{animation:fadeSwap 6s ease-in-out infinite}
.anim [data-swap2]{animation:fadeSwap2 6s ease-in-out infinite}

@media (prefers-reduced-motion: reduce){
  .anim *{animation:none!important}
}

/* ============================================================
   Chapters / Field Diary (Drive-synced content)
   ============================================================ */
.ch-meta{font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.1em;
  text-transform:uppercase;color:var(--bark);margin-bottom:.6rem;display:flex;gap:1rem;flex-wrap:wrap}
.ch-meta .num{color:var(--marigold)}
.ch-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem;margin-top:2.6rem}
.ch-card{background:var(--white);border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(20,53,42,.08);box-shadow:0 4px 18px rgba(20,53,42,.05);
  cursor:pointer;transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column}
.ch-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.ch-cover{aspect-ratio:3/2;background:linear-gradient(135deg,var(--leaf),var(--canopy));
  background-size:cover;background-position:center;position:relative}
.ch-cover .badge{position:absolute;left:12px;top:12px;background:var(--canopy-deep);
  color:#fff;font-family:'IBM Plex Mono',monospace;font-size:.7rem;letter-spacing:.1em;
  padding:.3rem .7rem;border-radius:999px}
.ch-card .body{padding:1.4rem 1.5rem 1.6rem;flex:1;display:flex;flex-direction:column}
.ch-card h3{margin-bottom:.4rem}
.ch-card .sum{font-size:.95rem;color:#3A453F;flex:1}
.ch-card .more{margin-top:1rem;font-family:'IBM Plex Mono',monospace;font-size:.76rem;
  letter-spacing:.1em;color:var(--leaf)}
.ch-empty{background:var(--white);border:1px dashed rgba(20,53,42,.25);border-radius:var(--radius);
  padding:3rem 2rem;text-align:center;color:var(--bark);margin-top:2rem}

/* Detail modal */
.ch-modal{position:fixed;inset:0;z-index:200;display:none;background:rgba(13,38,30,.6);
  backdrop-filter:blur(4px);overflow-y:auto;padding:3rem 1rem}
.ch-modal.open{display:block}
.ch-sheet{max-width:880px;margin:0 auto;background:var(--mist);border-radius:14px;
  overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.4)}
.ch-sheet .hero-img{height:300px;background:linear-gradient(135deg,var(--leaf),var(--canopy));
  background-size:cover;background-position:center}
.ch-sheet .inner{padding:2.2rem 2.4rem 2.8rem}
.ch-close{position:fixed;top:1.2rem;right:1.4rem;z-index:210;background:var(--white);
  border:none;width:44px;height:44px;border-radius:50%;cursor:pointer;font-size:1.4rem;
  color:var(--canopy);box-shadow:var(--shadow)}
.ch-section-label{font-family:'IBM Plex Mono',monospace;font-size:.74rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--leaf);margin:2rem 0 1rem}
.ch-body p{margin-bottom:1rem;color:#2C352F}
.thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:.7rem}
.thumbs.news{grid-template-columns:repeat(3,1fr)}
.thumbs img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:8px;cursor:pointer;
  transition:transform .2s ease}
.thumbs.news img{aspect-ratio:3/4}
.thumbs img:hover{transform:scale(1.03)}
.videos{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}
.videos .vid{aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#000}
.videos iframe{width:100%;height:100%;border:0}

/* Lightbox */
.lb{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;
  background:rgba(0,0,0,.9);padding:2rem}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:90vh;border-radius:6px}
.lb .x{position:fixed;top:1.2rem;right:1.4rem;background:none;border:none;color:#fff;
  font-size:2rem;cursor:pointer}

@media (max-width:900px){.ch-grid{grid-template-columns:repeat(2,1fr)}.videos{grid-template-columns:1fr}}
@media (max-width:640px){.ch-grid{grid-template-columns:1fr}.thumbs{grid-template-columns:repeat(3,1fr)}
  .ch-sheet .inner{padding:1.6rem}}

/* Field Diary — theme filter chips + chapter tag badge */
.ch-filter{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.6rem}
.ch-filter button{
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.04em;
  padding:.5rem 1.05rem;border-radius:999px;cursor:pointer;
  background:var(--white);border:1px solid rgba(20,53,42,.2);color:var(--canopy);
  transition:background .2s,color .2s,border-color .2s}
.ch-filter button:hover{border-color:var(--leaf)}
.ch-filter button.on{background:var(--canopy);color:var(--white);border-color:var(--canopy)}
.ch-filter button .count{opacity:.6;margin-left:.4rem}
.ch-cover .tag-badge{position:absolute;right:12px;top:12px;background:var(--marigold);
  color:var(--canopy-deep);font-family:'IBM Plex Mono',monospace;font-size:.66rem;
  letter-spacing:.08em;padding:.3rem .7rem;border-radius:999px}
.ch-detail-tag{display:inline-block;margin-bottom:1rem;background:rgba(216,154,43,.16);
  color:var(--bark);font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.1em;
  text-transform:uppercase;padding:.35rem .8rem;border-radius:999px}