/* ── Variables ── */
:root {
  --primary: #2D6A4F;
  --primary-dark: #1B4332;
  --accent: #52B788;
  --green-light: #D8F3DC;
  --green-bg: #F0FDF4;
  --bg: #FFFFFF;
  --bg-alt: #F8FAF7;
  --text: #1B1B1B;
  --muted: #6B7280;
  --muted-light: #9CA3AF;
  --border: #E5E7EB;
  --shadow: 0 4px 24px rgba(0,0,0,.06);
  --radius: 20px;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}

/* ── Navigation ── */
nav.topnav{background:rgba(255,255,255,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:0 40px;height:72px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:999;border-bottom:1px solid var(--border)}
nav.topnav .logo-area{display:flex;align-items:center;gap:12px}
nav.topnav .logo-area img{height:62px;width:auto}
nav.topnav .logo-area span{font-weight:700;font-size:18px;color:var(--primary)}
nav.topnav .links{display:flex;align-items:center;gap:28px}
nav.topnav .links a{font-size:15px;color:#4B5563;font-weight:500;transition:color .2s}
nav.topnav .links a:hover{color:var(--primary);text-decoration:none}
.lang-switch{display:flex;gap:4px;margin-left:8px}
.lang-btn{background:none;border:2px solid var(--border);border-radius:6px;padding:4px 10px;font-size:13px;font-weight:600;cursor:pointer;color:var(--muted);transition:all .2s}
.lang-btn.active{border-color:var(--primary);color:var(--primary);background:var(--green-light)}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--text)}

/* ── Hero ── */
.hero{position:relative;min-height:85vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--primary-dark)}
.hero-bg{position:absolute;inset:0;background:url('hero.jpg') center/cover no-repeat;opacity:.7}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(27,67,50,.15) 0%,rgba(27,67,50,.55) 100%)}
.hero-content{position:relative;z-index:2;text-align:center;max-width:800px;padding:40px 24px;color:#fff}
.hero-content h1{font-size:56px;font-weight:800;line-height:1.1;margin-bottom:20px;letter-spacing:-1px}
.hero-content p{font-size:20px;line-height:1.6;opacity:.92;max-width:600px;margin:0 auto 32px}
.btn-pill{display:inline-block;background:var(--accent);color:#fff;padding:16px 40px;border-radius:50px;font-size:17px;font-weight:600;transition:background .2s,transform .2s}
.btn-pill:hover{background:#40916C;transform:translateY(-2px);text-decoration:none}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary);padding:14px 36px}
.btn-outline:hover{background:var(--primary);color:#fff}

/* ── Section defaults ── */
.section{padding:96px 24px}
.section-alt{background:var(--bg-alt)}
.section-green{background:var(--green-light)}
.section-inner{max-width:1100px;margin:0 auto}
.section-label{font-size:13px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:12px}
.section-title{font-size:36px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:-.5px}
.section-subtitle{font-size:18px;color:var(--muted);max-width:640px;line-height:1.6;margin-bottom:48px}

/* ── KPI Row ── */
.kpi-row{display:flex;gap:32px;flex-wrap:wrap;justify-content:center}
.kpi-card{flex:1;min-width:260px;max-width:400px;text-align:center;padding:48px 32px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
.kpi-number{font-size:64px;font-weight:800;color:var(--primary);line-height:1.1;margin-bottom:8px}
.kpi-label{font-size:15px;color:var(--muted);font-weight:500}
.kpi-detail{font-size:13px;color:var(--muted-light);margin-top:4px}

/* ── Two-Column Cards ── */
.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.info-card{background:#fff;border-radius:var(--radius);padding:40px;box-shadow:var(--shadow)}
.info-card h3{font-size:22px;font-weight:700;margin-bottom:12px;color:var(--primary-dark)}
.info-card p{color:#4B5563;font-size:16px;line-height:1.7}

/* ── Timeline (vertical alternating) ── */
.timeline{position:relative;padding:20px 0}
.timeline::before{content:'';position:absolute;left:50%;top:0;bottom:0;width:3px;background:var(--green-light);transform:translateX(-50%)}
.tl-item{position:relative;width:50%;padding:0 48px 16px}
.tl-item:nth-child(odd){left:0;text-align:right;padding-right:48px;padding-left:24px}
.tl-item:nth-child(even){left:50%;text-align:left;padding-left:48px;padding-right:24px}
.tl-dot{position:absolute;top:50%;transform:translateY(-50%);width:16px;height:16px;background:var(--accent);border:3px solid #fff;border-radius:50%;box-shadow:0 0 0 3px var(--green-light);z-index:2}
.tl-item:nth-child(odd) .tl-dot{right:-8px}
.tl-item:nth-child(even) .tl-dot{left:-8px}
.tl-date{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:6px}
.tl-title{font-size:18px;font-weight:700;color:var(--primary-dark);margin-bottom:8px}
.tl-text{font-size:15px;color:#4B5563;line-height:1.65}
.tl-img{width:100%;max-width:280px;border-radius:12px;margin-bottom:10px;box-shadow:var(--shadow)}
.tl-item:nth-child(odd) .tl-img{margin-left:auto}

/* ── Method Steps (accordion) ── */
.mSteps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.mStep{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.mStep:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,.1)}
.mHeader{cursor:pointer}
.mHeader img{width:100%;height:200px;object-fit:cover}
.mHeaderText{padding:24px 24px 0}
.mHeaderText h3{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--primary-dark)}
.mNum{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--green-light);color:var(--primary);border-radius:50%;font-size:13px;font-weight:700;margin-right:8px}
.mSummary{font-size:14px;color:var(--muted);line-height:1.6}
.mToggle{display:block;text-align:center;padding:12px;font-size:20px;color:var(--accent);font-weight:700;user-select:none}
.mDetail{max-height:0;overflow:hidden;transition:max-height .4s ease}
.mStep.open .mDetail{max-height:600px}
.mDetailInner{padding:0 24px 24px;font-size:13px;color:#4B5563;line-height:1.7}
.mDetailInner ul{margin:8px 0 8px 18px}
.mDetailInner li{margin-bottom:4px}
.mFact{background:var(--green-bg);border-radius:12px;padding:12px 16px;margin-top:12px;font-size:13px;color:var(--primary)}

/* ── Seeds list ── */
.seeds-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:28px}
.seed-item{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s}
.seed-item:hover{transform:translateY(-3px)}
.seed-item img{width:100%;height:200px;object-fit:cover}
.seed-item>div{padding:24px}
.seed-item strong{display:block;font-size:16px;color:var(--primary-dark);margin-bottom:8px}
.seed-item p{font-size:14px;color:var(--muted);line-height:1.6}

/* ── Partners ── */
.pGrid{display:flex;flex-wrap:wrap;gap:40px;align-items:center;justify-content:center}
.pCard{text-align:center;max-width:160px}
.pCard a{display:block}
.pLogo{height:64px;width:auto;margin:0 auto 12px;object-fit:contain;filter:grayscale(30%);transition:filter .2s}
.pCard:hover .pLogo{filter:grayscale(0%)}
.pName{font-size:13px;font-weight:600;color:var(--primary-dark)}
.pRole{font-size:12px;color:var(--muted-light)}
.small{font-size:13px;color:var(--muted)}

/* ── Map ── */
#leaflet-map{width:100%;height:450px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}

/* ── Media Grid ── */
.media-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.media-grid a{display:block;border-radius:12px;overflow:hidden;aspect-ratio:1;position:relative}
.media-grid img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.media-grid a:hover img{transform:scale(1.05)}
.media-grid .video-badge{position:absolute;top:8px;right:8px;background:rgba(0,0,0,.6);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px}

/* ── Footer ── */
footer{background:#F3F4F6;padding:48px 24px;text-align:center;color:var(--muted);font-size:14px}
footer a{color:var(--primary);font-weight:600}

/* ── Back to top ── */
.back-to-top{position:fixed;bottom:24px;right:24px;width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;border:none;font-size:14px;line-height:1;cursor:pointer;box-shadow:0 2px 12px rgba(45,106,79,.4);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .2s;z-index:900;display:flex;align-items:center;justify-content:center}
.back-to-top.visible{opacity:.9;visibility:visible}
.back-to-top:hover{opacity:1;transform:translateY(-2px);background:var(--primary-dark);box-shadow:0 4px 16px rgba(45,106,79,.5)}

/* ── Responsive ── */
@media(max-width:900px){
  .hero-content h1{font-size:36px}
  .mSteps{grid-template-columns:1fr 1fr}
  .two-cards{grid-template-columns:1fr}
  .media-grid{grid-template-columns:repeat(3,1fr)}
  .tl-item,.tl-item:nth-child(even){left:0;width:100%;text-align:left;padding-left:48px;padding-right:24px}
  .timeline::before{left:16px}
  .tl-item:nth-child(odd) .tl-dot,.tl-item:nth-child(even) .tl-dot{left:8px;right:auto}
  .tl-item:nth-child(odd) .tl-img{margin-left:0}
  nav.topnav .links{display:none;position:absolute;top:64px;left:0;right:0;background:rgba(255,255,255,.98);backdrop-filter:blur(12px);flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,.08)}
  nav.topnav .links.open{display:flex}
  .nav-toggle{display:block}
  nav.topnav{padding:0 16px}
}
@media(max-width:600px){
  .mSteps{grid-template-columns:1fr}
  .kpi-number{font-size:48px}
  .hero-content h1{font-size:30px}
  .media-grid{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 16px}
}