/* ============ DRRDO Brand System ============
   Primary: deep humanitarian green (from DRRDO logo)
   Accent: warm gold (calls-to-action)
   ============================================= */
:root{
  --green-900:#173b1c;
  --green-800:#1e4023;
  --green-700:#245529;
  --green-600:#2e6b34;
  --green-500:#3c7f43;
  --green-100:#e8f0e6;
  --green-50:#f4f8f3;
  --gold:#d9a441;
  --gold-dark:#b9832c;
  --ink:#20321f;
  --muted:#647063;
  --gray-100:#eef1ea;
  --gray-200:#dfe5da;
  --white:#ffffff;
  --shadow:0 6px 24px rgba(23,59,28,.10);
  --radius:14px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;font-family:'Segoe UI',-apple-system,BlinkMacSystemFont,'Helvetica Neue',Arial,sans-serif;color:var(--ink);line-height:1.65;background:#fff;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:'Segoe UI',Arial,sans-serif;color:var(--green-900);line-height:1.25;margin:0 0 14px;}
h1{font-size:40px;font-weight:800;}
h2{font-size:30px;font-weight:800;}
h3{font-size:21px;font-weight:700;}
h4{font-size:17px;font-weight:700;}
p{margin:0 0 14px;color:#3c4a3b;}
.container{max-width:1180px;margin:0 auto;padding:0 20px;}
.center{text-align:center;}
.muted{color:var(--muted);}
.narrow{max-width:760px;}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--gold-dark);background:var(--green-50);padding:6px 14px;border-radius:20px;margin-bottom:12px;}
.eyebrow.center{display:block;width:fit-content;margin:0 auto 12px;}
.eyebrow.light{background:rgba(255,255,255,.14);color:#f2d8a0;}
h2.center, h2.light{text-align:center;}
h2.light{color:#fff;}

/* Buttons */
.btn{display:inline-block;padding:13px 26px;border-radius:9px;font-weight:700;font-size:14.5px;border:2px solid transparent;cursor:pointer;transition:.2s;}
.btn-primary{background:var(--green-600);color:#fff;}
.btn-primary:hover{background:var(--green-700);}
.btn-outline{border-color:var(--green-600);color:var(--green-700);background:#fff;}
.btn-outline:hover{background:var(--green-600);color:#fff;}
.btn-gold{background:var(--gold);color:#3a2600;}
.btn-gold:hover{background:var(--gold-dark);color:#fff;}
.btn-sm{padding:9px 16px;font-size:13px;}

/* ===== Top bar ===== */
.topbar{background:var(--green-900);color:#e6ede4;font-size:13px;}
.topbar-inner{display:flex;justify-content:space-between;align-items:center;padding:9px 0;flex-wrap:wrap;gap:8px;}
.topbar a{color:#e6ede4;margin-right:16px;}
.topbar a:last-child{margin-right:0;}
.topbar a:hover{color:var(--gold);}
.topbar-social a{margin-left:14px;margin-right:0;}

/* ===== Main header ===== */
.site-header{background:#fff;box-shadow:0 1px 0 var(--gray-100);position:sticky;top:0;z-index:100;}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;gap:16px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{width:52px;height:52px;object-fit:contain;}
.brand-text{display:flex;flex-direction:column;}
.brand-text strong{font-size:18px;color:var(--green-900);line-height:1.2;}
.brand-text small{font-size:12px;color:var(--muted);}
.header-cta{white-space:nowrap;}
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:38px;height:38px;background:none;border:none;cursor:pointer;}
.hamburger span{display:block;height:3px;background:var(--green-800);border-radius:2px;}

.main-nav{background:var(--green-700);}
.main-nav .container{display:flex;align-items:center;justify-content:space-between;}
.main-nav ul{list-style:none;display:flex;margin:0;padding:0;}
.main-nav a{display:block;padding:14px 18px;color:#fff;font-size:14.5px;font-weight:600;}
.main-nav a:hover, .main-nav a.active{background:var(--green-800);}
.nav-search{display:flex;align-items:center;background:rgba(255,255,255,.12);border-radius:8px;padding:4px 4px 4px 12px;}
.nav-search input{background:none;border:none;color:#fff;font-size:13px;width:120px;}
.nav-search input::placeholder{color:#cfe0cd;}
.nav-search button{background:none;border:none;color:#fff;cursor:pointer;padding:6px 10px;}

/* ===== Hero Slider ===== */
.hero-slider{position:relative;height:560px;overflow:hidden;background:var(--green-900);}
.slides{height:100%;position:relative;}
.slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .8s ease;display:flex;align-items:center;}
.slide.active{opacity:1;}
.slide-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,35,17,.82) 10%,rgba(15,35,17,.35) 60%,rgba(15,35,17,.15));}
.slide-content{position:relative;color:#fff;max-width:640px;}
.slide-content h1{color:#fff;font-size:44px;margin-bottom:14px;}
.slide-content p{color:#eef1ea;font-size:17px;margin-bottom:24px;}
.slide-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.18);color:#fff;border:none;width:46px;height:46px;border-radius:50%;font-size:18px;cursor:pointer;z-index:5;}
.slide-arrow:hover{background:rgba(255,255,255,.32);}
.slide-arrow.prev{left:24px;}
.slide-arrow.next{right:24px;}
.slide-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:5;}
.slide-dots .dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;}
.slide-dots .dot.active{background:var(--gold);}

.hero-fallback{background:linear-gradient(120deg,var(--green-900),var(--green-600));color:#fff;padding:100px 0;text-align:center;}
.hero-fallback h1{color:#fff;}
.hero-fallback p{color:#e6ede4;font-size:18px;margin-bottom:26px;}

@media(max-width:860px){
  .hamburger{display:flex;}
  .header-cta{display:none;}
  .main-nav{display:none;position:absolute;left:0;right:0;top:100%;}
  .main-nav.open{display:block;}
  .main-nav .container{flex-direction:column;align-items:stretch;padding:0;}
  .main-nav ul{flex-direction:column;}
  .nav-search{margin:12px 20px 16px;}
  .hero-slider{height:420px;}
  .slide-content h1{font-size:30px;}
}

/* ===== Sections ===== */
.section{padding:64px 0;}
.section-alt{background:var(--green-50);}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.two-col-70{display:grid;grid-template-columns:2.2fr 1fr;gap:44px;align-items:start;}
@media(max-width:860px){.two-col,.two-col-70{grid-template-columns:1fr;}}

/* About / MV cards */
.mv-cards{display:flex;flex-direction:column;gap:20px;}
.mv-card{background:var(--green-50);border-left:5px solid var(--green-600);border-radius:12px;padding:26px;}
.mv-card-alt{border-left-color:var(--gold);}
.mv-card h3{margin-bottom:10px;}

/* Purpose check list */
.check-list{list-style:none;padding:0;max-width:820px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;}
.check-list li{padding-left:30px;position:relative;color:#3c4a3b;}
.check-list li::before{content:'✓';position:absolute;left:0;top:0;color:var(--green-600);font-weight:800;}
@media(max-width:700px){.check-list{grid-template-columns:1fr;}}

/* Focus areas */
.focus-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;margin-top:34px;}
.focus-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:28px;text-align:center;box-shadow:var(--shadow);transition:.2s;}
.focus-card:hover{transform:translateY(-4px);border-color:var(--green-600);}
.focus-icon{font-size:34px;margin-bottom:10px;}

/* Impact stats */
.impact-section{background:linear-gradient(135deg,var(--green-900),var(--green-700));padding:70px 0;}
.impact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:22px;margin-top:36px;}
.impact-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:26px;text-align:center;}
.impact-value{font-size:34px;font-weight:800;color:var(--gold);}
.impact-label{color:#e6ede4;font-size:13.5px;margin-top:4px;}
.impact-source{color:#a9bfa6;font-size:11px;margin-top:8px;}

/* Projects */
.subsection-title{margin-top:36px;margin-bottom:18px;border-left:4px solid var(--gold);padding-left:12px;}
.project-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:26px;}
.project-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.2s;}
.project-card:hover{transform:translateY(-4px);}
.project-card-img{height:190px;background-size:cover;background-position:center;background-color:var(--green-100);position:relative;}
.project-card-img.no-image{display:flex;align-items:center;justify-content:center;}
.badge-status{position:absolute;top:14px;left:14px;padding:5px 12px;border-radius:20px;font-size:11.5px;font-weight:800;text-transform:uppercase;}
.badge-blue{background:#dbe9ff;color:#1f4f9c;}
.badge-green{background:#dcf3dc;color:#1f6b25;}
.project-card-body{padding:22px;}
.project-card-body h4{margin-bottom:6px;}
.project-meta{font-size:13px;color:var(--muted);margin-bottom:4px;}

/* News */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;}
.news-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.2s;}
.news-card:hover{transform:translateY(-4px);}
.news-card img{height:170px;object-fit:cover;width:100%;}
.news-card-body{padding:20px;}
.news-category{display:inline-block;background:var(--green-100);color:var(--green-700);font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px;margin-right:8px;}
.news-date{font-size:12px;color:var(--muted);}
.news-card-body h4{margin:8px 0 6px;}

/* CTA band */
.cta-band{background:linear-gradient(120deg,var(--green-800),var(--green-600));color:#fff;padding:50px 0;}
.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;margin-bottom:6px;}
.cta-inner p{color:#e2ebe0;margin:0;}

/* Page hero (inner pages) */
.page-hero{background:linear-gradient(120deg,var(--green-900),var(--green-700));color:#fff;padding:60px 0;text-align:center;}
.page-hero h1{color:#fff;margin-bottom:8px;}
.page-hero p{color:#dfeadd;margin:0;max-width:640px;margin:0 auto;}

/* Values grid */
.values-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;margin-top:34px;}
.value-card{background:#fff;border-top:4px solid var(--gold);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}

/* Board */
.board-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;margin-top:30px;}
.board-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow);}
.board-card img{width:88px;height:88px;object-fit:cover;border-radius:50%;margin:0 auto 14px;}
.board-avatar-placeholder{width:88px;height:88px;border-radius:50%;background:var(--green-100);display:flex;align-items:center;justify-content:center;font-size:34px;margin:0 auto 14px;}
.board-role{color:var(--green-700);font-weight:700;font-size:13.5px;}
.board-bio{font-size:13px;color:var(--muted);}
.org-chart{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:28px;}
.org-node{background:#fff;border:1px solid var(--green-600);color:var(--green-700);padding:10px 18px;border-radius:8px;font-size:13.5px;font-weight:600;}

/* Resources */
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px;}
.filter-bar input,.filter-bar select{padding:11px 14px;border:1px solid var(--gray-200);border-radius:8px;font-size:14px;}
.filter-bar input{flex:1;min-width:200px;}
.doc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;}
.doc-card{display:flex;gap:16px;background:#fff;border:1px solid var(--gray-100);border-radius:12px;padding:20px;box-shadow:var(--shadow);}
.doc-icon{font-size:28px;}
.doc-card h4{margin-bottom:4px;}
.doc-meta{font-size:12px;color:var(--muted);margin-bottom:4px;}
.doc-desc{font-size:13px;color:var(--muted);margin:0;}
.doc-list{list-style:none;padding:0;}
.doc-list li{padding:10px 0;border-bottom:1px solid var(--gray-100);}

/* Gallery */
.gallery-collections{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;}
.gallery-collection-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--gray-100);box-shadow:var(--shadow);}
.gallery-collection-img{height:170px;background-size:cover;background-position:center;background-color:var(--green-100);}
.gallery-collection-body{padding:16px;}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin-top:20px;}
.gallery-grid img{width:100%;height:150px;object-fit:cover;border-radius:10px;transition:.2s;}
.gallery-grid img:hover{opacity:.85;}
.lightbox{display:none;position:fixed;inset:0;background:rgba(10,20,10,.92);z-index:1000;align-items:center;justify-content:center;flex-direction:column;}
.lightbox.open{display:flex;}
.lightbox img{max-width:88vw;max-height:80vh;border-radius:8px;}
.lightbox-caption{color:#fff;margin-top:14px;}
.lightbox-close{position:absolute;top:24px;right:34px;color:#fff;font-size:36px;cursor:pointer;}

/* Project detail */
.project-hero{height:360px;background-size:cover;background-position:center;background-color:var(--green-800);position:relative;display:flex;align-items:flex-end;}
.project-hero-overlay{position:absolute;inset:0;background:linear-gradient(0deg,rgba(15,30,15,.85),rgba(15,30,15,.25));}
.project-hero-content{position:relative;color:#fff;padding-bottom:32px;}
.project-hero-content h1{color:#fff;margin:10px 0;}
.lead{font-size:17px;color:var(--ink);}
.project-section-title{margin-top:34px;border-left:4px solid var(--green-600);padding-left:12px;}
.project-sidebar{position:sticky;top:100px;}
.side-card{background:var(--green-50);border-radius:var(--radius);padding:22px;margin-bottom:20px;}
.fact-list{list-style:none;padding:0;margin:0;}
.fact-list li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--gray-200);font-size:13.5px;}
.fact-list li span{color:var(--muted);}
.side-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.side-stat{text-align:center;background:#fff;border-radius:10px;padding:14px 8px;}
.side-stat strong{display:block;font-size:20px;color:var(--green-700);}
.side-stat span{font-size:11.5px;color:var(--muted);}

/* News article */
.article-meta{color:var(--muted);font-size:13.5px;margin-bottom:20px;}
.article-image{border-radius:var(--radius);margin-bottom:24px;width:100%;max-height:420px;object-fit:cover;}
.article-body p{margin-bottom:16px;}
.back-link{color:var(--green-700);font-weight:600;font-size:13.5px;}

/* Contact */
.contact-form label{display:block;font-weight:600;font-size:13.5px;margin:14px 0 6px;}
.contact-form input,.contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--gray-200);border-radius:8px;font-size:14px;font-family:inherit;}
.contact-info{display:flex;flex-direction:column;gap:14px;}
.info-card{background:var(--green-50);border-radius:12px;padding:18px 20px;}
.info-card h4{margin-bottom:4px;font-size:14px;}
.info-card p{margin:0;font-size:14px;}
.map-embed{border-radius:12px;overflow:hidden;}

/* Search */
.search-result{padding:20px 0;border-bottom:1px solid var(--gray-100);}
.search-type{font-size:11px;font-weight:700;text-transform:uppercase;color:var(--gold-dark);}

/* Footer */
.site-footer{background:var(--green-900);color:#cddccb;padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:36px;}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand img{width:38px;height:38px;object-fit:contain;background:#fff;border-radius:6px;padding:3px;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;font-size:13.5px;}
.footer-col a:hover{color:var(--gold);}
.footer-col p{color:#b6c8b3;font-size:13.5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;text-align:center;font-size:12.5px;color:#9fb49c;}

.whatsapp-float{position:fixed;bottom:24px;right:24px;background:#25D366;color:#fff;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 6px 20px rgba(0,0,0,.25);z-index:200;}

@media(max-width:700px){
  h1{font-size:30px;} h2{font-size:24px;}
  .section{padding:44px 0;}
}