/* ATWA — Ayalaga Thamilar Welfare Association (Mauritius)
   Static stylesheet. Pure CSS3, fully responsive. */

:root{
  --primary:#0B2D6B;
  --primary-dark:#081f4b;
  --secondary:#D4AF37;
  --secondary-dark:#b8941f;
  --accent:#B22222;
  --bg:#F8F8F8;
  --text:#333333;
  --muted:#666;
  --white:#fff;
  --border:#e6e6e6;
  --shadow:0 8px 24px rgba(11,45,107,.08);
  --shadow-lg:0 16px 48px rgba(11,45,107,.16);
  --radius:12px;
  --container:1200px;
  --header-h:78px;
  --font-en:'Poppins','Montserrat',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-ta:'Noto Sans Tamil',var(--font-en);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-en);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
.ta{font-family:var(--font-ta)}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

h1,h2,h3,h4{font-family:var(--font-en);color:var(--primary);font-weight:700;line-height:1.2}
h1{font-size:clamp(2rem,4.5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:.5em}
h3{font-size:1.25rem;margin-bottom:.4em}
p{margin-bottom:1em;color:var(--text)}

.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-title{text-align:center;margin-bottom:14px}
.section-sub{text-align:center;color:var(--muted);max-width:680px;margin:0 auto 56px}
.section-alt{background:var(--white)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:50px;font-weight:600;font-size:.95rem;
  border:2px solid transparent;cursor:pointer;transition:all .25s ease;
  text-decoration:none;letter-spacing:.3px;
}
.btn-primary{background:var(--secondary);color:var(--primary);border-color:var(--secondary)}
.btn-primary:hover{background:var(--secondary-dark);border-color:var(--secondary-dark);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-outline{background:transparent;color:var(--white);border-color:var(--white)}
.btn-outline:hover{background:var(--white);color:var(--primary)}
.btn-accent{background:var(--accent);color:var(--white);border-color:var(--accent)}
.btn-accent:hover{background:#8e1a1a;border-color:#8e1a1a;color:var(--white);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary);color:var(--white)}

/* Header */
.site-header{
  position:sticky;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--border);
  height:var(--header-h);
  display:flex;align-items:center;
}
.nav{display:flex;align-items:center;justify-content:space-between;width:100%;gap:16px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-logo{
  width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:var(--secondary);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1.1rem;letter-spacing:.5px;
  border:2px solid var(--secondary);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{color:var(--primary);font-size:1.05rem;font-weight:700}
.brand-text span{font-size:.72rem;color:var(--muted);letter-spacing:.5px}

.nav-menu{display:flex;align-items:center;gap:4px;list-style:none}
.nav-menu a{
  display:block;padding:10px 14px;border-radius:8px;
  color:var(--text);font-weight:500;font-size:.94rem;
}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary);background:rgba(11,45,107,.06)}
.nav-cta{margin-left:8px}
.nav-cta .btn{padding:10px 20px;font-size:.88rem}

.hamburger{
  display:none;background:none;border:none;cursor:pointer;
  width:42px;height:42px;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.hamburger span{display:block;width:24px;height:2px;background:var(--primary);transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.hero{
  position:relative;
  background:#0B2D6B;
  overflow:hidden;
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.hero-image{
  display:block;
  width:100vw;
  height:calc(100vh - var(--header-h));
  max-height:calc(100vh - var(--header-h));
  object-fit:cover;
  object-position:center top;
  margin:0 auto;
  background:#0B2D6B;
}
.hero-cta-wrap{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  padding:24px 0;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}


/* Page header (sub-pages) */
.page-header{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:var(--white);padding:80px 0 64px;text-align:center;
  border-bottom:4px solid var(--secondary);
}
.page-header h1{color:var(--white);margin-bottom:10px}
.page-header p{color:rgba(255,255,255,.85);max-width:640px;margin:0 auto}
.breadcrumb{margin-top:14px;font-size:.9rem;color:rgba(255,255,255,.75)}
.breadcrumb a{color:var(--secondary)}

/* Grid */
.grid{display:grid;gap:28px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* Card */
.card{
  background:var(--white);border-radius:var(--radius);
  padding:32px 26px;box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s;
  border:1px solid var(--border);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card-icon{
  width:60px;height:60px;border-radius:14px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:var(--secondary);display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;margin-bottom:18px;
}
.card h3{color:var(--primary);margin-bottom:10px}
.card p{color:var(--muted);font-size:.95rem;margin-bottom:0}

/* Mission/Vision/Values */
.mvv .card{text-align:center}
.mvv .card-icon{margin:0 auto 18px}

/* Activity cards with image */
.activity-card{
  background:var(--white);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .3s,box-shadow .3s;
}
.activity-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.activity-card .thumb{
  height:200px;background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:3rem;
  background-size:cover;background-position:center;
}
.activity-card .body{padding:24px}
.activity-card h3{color:var(--primary);margin-bottom:8px}
.activity-card p{color:var(--muted);font-size:.92rem;margin:0}
.tag{display:inline-block;background:rgba(212,175,55,.15);color:var(--secondary-dark);padding:4px 12px;border-radius:50px;font-size:.75rem;font-weight:600;margin-bottom:10px;letter-spacing:.5px;text-transform:uppercase}

/* Event card */
.event-card{display:flex;gap:20px;background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s}
.event-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.event-date{
  flex-shrink:0;width:110px;background:linear-gradient(180deg,var(--accent),#8e1a1a);
  color:var(--white);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:18px 8px;
}
.event-date .day{font-size:2.4rem;font-weight:800;line-height:1}
.event-date .month{font-size:.85rem;text-transform:uppercase;letter-spacing:1px;margin-top:4px}
.event-date .year{font-size:.75rem;opacity:.85;margin-top:2px}
.event-body{padding:18px 22px 18px 0;flex:1}
.event-body h3{margin-bottom:6px}
.event-meta{font-size:.85rem;color:var(--muted);margin-bottom:8px}
.event-body p{font-size:.92rem;margin:0;color:var(--text)}

/* Gallery / Masonry */
.gallery-filters{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:36px}
.filter-btn{
  padding:8px 20px;border-radius:50px;background:var(--white);
  color:var(--primary);border:2px solid var(--border);cursor:pointer;
  font-weight:600;font-size:.88rem;transition:.2s;
}
.filter-btn:hover,.filter-btn.active{background:var(--primary);color:var(--white);border-color:var(--primary)}

.masonry{
  column-count:4;column-gap:16px;
}
.masonry .tile{
  break-inside:avoid;margin-bottom:16px;border-radius:var(--radius);overflow:hidden;
  cursor:pointer;position:relative;box-shadow:var(--shadow);transition:.3s;
  display:block;
}
.masonry .tile:hover{transform:scale(1.02);box-shadow:var(--shadow-lg)}
.masonry .tile img{width:100%;height:auto;display:block;transition:.4s}
.masonry .tile:hover img{filter:brightness(.85)}
.masonry .tile .overlay{
  position:absolute;inset:0;display:flex;align-items:flex-end;
  background:linear-gradient(180deg,transparent 50%,rgba(11,45,107,.85) 100%);
  color:var(--white);padding:16px;opacity:0;transition:.3s;font-weight:600;
}
.masonry .tile:hover .overlay{opacity:1}

/* Lightbox */
.lightbox{
  position:fixed;inset:0;background:rgba(0,0,0,.92);z-index:1000;
  display:none;align-items:center;justify-content:center;padding:24px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:90%;max-height:90vh;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.lightbox-close{
  position:absolute;top:24px;right:30px;background:none;border:none;color:var(--white);
  font-size:2.5rem;cursor:pointer;line-height:1;
}

/* Testimonials */
.testimonial{background:var(--white);padding:32px;border-radius:var(--radius);box-shadow:var(--shadow);position:relative}
.testimonial::before{
  content:"\201C";position:absolute;top:8px;left:18px;
  font-size:5rem;color:var(--secondary);opacity:.3;font-family:Georgia,serif;line-height:1;
}
.testimonial p{font-style:italic;color:var(--text);position:relative;z-index:1}
.testimonial .who{display:flex;align-items:center;gap:12px;margin-top:18px}
.avatar{
  width:48px;height:48px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:var(--secondary);display:flex;align-items:center;justify-content:center;font-weight:700;
}
.who div strong{color:var(--primary);display:block;font-size:.95rem}
.who div span{color:var(--muted);font-size:.82rem}

/* CTA banner */
.cta-banner{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:var(--white);padding:72px 0;text-align:center;
  position:relative;overflow:hidden;
}
.cta-banner h2{color:var(--white)}
.cta-banner p{color:rgba(255,255,255,.9);max-width:620px;margin:0 auto 28px;font-size:1.05rem}

/* About blocks */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.two-col .img-block{
  height:380px;border-radius:var(--radius);
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:5rem;
  box-shadow:var(--shadow-lg);background-size:cover;background-position:center;
}
.feature-list{list-style:none;padding:0}
.feature-list li{
  padding:10px 0 10px 32px;position:relative;color:var(--text);
}
.feature-list li::before{
  content:"\2713";position:absolute;left:0;top:10px;
  width:22px;height:22px;border-radius:50%;background:var(--secondary);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:.78rem;
}

/* Team / Org chart */
.team-card{background:var(--white);border-radius:var(--radius);padding:30px 20px;text-align:center;box-shadow:var(--shadow);transition:.3s}
.team-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.team-card .avatar{width:88px;height:88px;font-size:1.6rem;margin:0 auto 14px}
.team-card h3{margin-bottom:4px}
.team-card .role{color:var(--accent);font-weight:600;font-size:.88rem;text-transform:uppercase;letter-spacing:.5px}

/* Form */
.form-card{background:var(--white);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow);max-width:680px;margin:0 auto}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:6px;font-weight:600;color:var(--primary);font-size:.92rem}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:12px 14px;border:2px solid var(--border);border-radius:8px;
  font-family:inherit;font-size:.95rem;color:var(--text);background:var(--white);transition:.2s;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,45,107,.1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}

/* Donate */
.donate-impact .card{text-align:center}
.donate-impact .amount{font-size:2.2rem;font-weight:800;color:var(--accent);margin-bottom:6px;font-family:var(--font-en)}
.bank-card{background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);border-left:5px solid var(--secondary)}
.bank-card dl{display:grid;grid-template-columns:160px 1fr;gap:12px 20px}
.bank-card dt{font-weight:600;color:var(--primary)}
.bank-card dd{color:var(--text)}
.qr-card{text-align:center;background:var(--white);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.qr-placeholder{
  width:200px;height:200px;margin:0 auto 16px;border-radius:8px;
  background:repeating-conic-gradient(var(--primary) 0% 25%,var(--white) 0% 50%) 50%/30px 30px;
  border:8px solid var(--primary);
}

/* Contact */
.contact-info-card{background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);text-align:center}
.contact-info-card .card-icon{margin:0 auto 14px}
.contact-info-card h3{margin-bottom:6px;font-size:1.05rem}
.contact-info-card p{margin:0;color:var(--text);font-size:.95rem}
.map-placeholder{
  height:380px;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
  background:linear-gradient(135deg,#dbe8ff,#fff);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.2rem;font-weight:600;
  background-image:
    linear-gradient(rgba(11,45,107,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,45,107,.05) 1px,transparent 1px);
  background-size:40px 40px;
}

/* News */
.news-card{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s}
.news-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.news-card .thumb{height:180px;background:linear-gradient(135deg,var(--primary),var(--accent))}
.news-card .body{padding:22px}
.news-card h3{font-size:1.1rem;margin-bottom:8px}
.news-card .date{font-size:.8rem;color:var(--muted);margin-bottom:6px}

/* Footer */
.site-footer{
  background:#081f4b;color:rgba(255,255,255,.8);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer h4{color:var(--secondary);font-size:1rem;margin-bottom:18px;text-transform:uppercase;letter-spacing:1px}
.footer ul{list-style:none}
.footer ul li{margin-bottom:8px}
.footer ul a{color:rgba(255,255,255,.75);font-size:.92rem}
.footer ul a:hover{color:var(--secondary)}
.footer .brand-text strong{color:var(--white)}
.footer .brand-text span{color:rgba(255,255,255,.6)}
.footer-about p{font-size:.9rem;color:rgba(255,255,255,.7);margin-top:14px}
.social{display:flex;gap:10px;margin-top:14px}
.social a{
  width:38px;height:38px;border-radius:50%;
  background:rgba(255,255,255,.08);color:var(--white);
  display:flex;align-items:center;justify-content:center;transition:.2s;
  font-size:1rem;
}
.social a:hover{background:var(--secondary);color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;
  font-size:.85rem;color:rgba(255,255,255,.6);
}

/* Back to top */
.back-to-top{
  position:fixed;bottom:28px;right:28px;width:48px;height:48px;border-radius:50%;
  background:var(--primary);color:var(--white);border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;font-size:1.4rem;
  box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transition:.3s;z-index:90;
}
.back-to-top.show{opacity:1;visibility:visible}
.back-to-top:hover{background:var(--accent);transform:translateY(-3px)}

/* Toast / popup */
.toast{
  position:fixed;top:100px;left:50%;transform:translateX(-50%) translateY(-20px);
  background:var(--white);color:var(--text);padding:16px 24px;border-radius:50px;
  box-shadow:var(--shadow-lg);border-left:5px solid #2e8b57;
  opacity:0;visibility:hidden;transition:.3s;z-index:1100;font-weight:600;
}
.toast.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* Animations */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.fade-up.in{opacity:1;transform:translateY(0)}

/* Utility */
.text-center{text-align:center}
.mt-4{margin-top:32px}
.mb-0{margin-bottom:0}

/* Responsive */
@media (max-width:980px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr;gap:32px}
  .masonry{column-count:3}
}
@media (max-width:760px){
  .nav-menu{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:var(--white);flex-direction:column;align-items:stretch;
    padding:18px;gap:4px;box-shadow:var(--shadow-lg);
    transform:translateY(-120%);transition:transform .3s;
    border-top:1px solid var(--border);
  }
  .nav-menu.open{transform:translateY(0)}
  .nav-menu a{padding:12px 16px}
  .nav-cta{margin:8px 0 0}
  .hamburger{display:flex}
  .section{padding:64px 0}
  .grid-2{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .event-card{flex-direction:column}
  .event-date{width:100%;flex-direction:row;gap:8px;padding:14px}
  .event-date .day{font-size:1.6rem}
  .event-body{padding:18px 22px 22px}
  .bank-card dl{grid-template-columns:1fr;gap:4px 0}
  .bank-card dt{margin-top:8px}
  .masonry{column-count:2}
  .hero{padding:80px 0 72px}
}
@media (max-width:460px){
  .brand-text strong{font-size:.95rem}
  .brand-text span{font-size:.65rem}
  .hero-cta .btn{width:100%}
  .masonry{column-count:1}
}