/* Sri Vaishnavi Charitable Trust — site styles. Mobile-first, warm, accessible. */
:root{
  --blue:#1b4f8a; --blue-dark:#16406f; --teal:#1a8f8f; --saffron:#f5a623; --saffron-dark:#e0900f;
  --ink:#1f2937; --muted:#5b6675; --line:#e7ebf0; --bg:#fbfaf7; --card:#ffffff;
  --maxw:1120px; --radius:16px; --shadow:0 14px 38px rgba(20,40,70,.08);
  --font:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
h1,h2,h3{line-height:1.18;color:var(--blue-dark);margin:0 0 .5em}
.wrap{width:min(100% - 32px,var(--maxw));margin-inline:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:0 22px;border-radius:999px;font-weight:700;font-size:16px;cursor:pointer;border:2px solid transparent;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px)}
.btn--primary{background:linear-gradient(135deg,var(--saffron),var(--saffron-dark));color:#3a2600;box-shadow:0 10px 24px rgba(245,166,35,.32)}
.btn--blue{background:var(--blue);color:#fff}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--blue-dark)}
.btn--lg{min-height:56px;font-size:17px;padding:0 28px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header__row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand__logo{width:48px;height:48px;border-radius:12px;object-fit:contain;background:#fff;flex:0 0 auto}
.brand__logo.is-missing{display:none}
.brand__fallback{width:48px;height:48px;border-radius:12px;flex:0 0 auto;display:none;place-items:center;background:linear-gradient(135deg,var(--blue),var(--teal));color:#fff;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand__logo.is-missing + .brand__fallback{display:grid}
.brand__name{min-width:0}
.brand__name strong{display:block;font-size:16px;color:var(--blue-dark);font-weight:700;line-height:1.1}
.brand__name span{display:block;font-size:10.5px;color:var(--teal);font-weight:600;text-transform:uppercase;letter-spacing:.12em}
.nav-toggle{display:none}
.nav{display:flex;align-items:center;gap:4px}
.nav a{padding:9px 13px;border-radius:9px;color:var(--ink);font-weight:600;font-size:14.5px}
.nav a:hover{background:#f1f5f9;color:var(--blue-dark)}
.nav a.is-active{color:var(--blue);background:#eef4fb}
.nav .btn{margin-left:6px;min-height:42px;padding:0 16px;font-size:14.5px}
.nav-burger{display:none;flex:0 0 auto;width:46px;height:46px;border:1px solid var(--line);border-radius:11px;background:#fff;cursor:pointer;align-items:center;justify-content:center}
.nav-burger span,.nav-burger span:before,.nav-burger span:after{content:"";display:block;width:20px;height:2px;background:var(--blue-dark);position:relative;border-radius:2px}
.nav-burger span:before{position:absolute;top:-6px}.nav-burger span:after{position:absolute;top:6px}

/* Hero */
.hero{position:relative;background:radial-gradient(1100px 460px at 80% -10%,rgba(26,143,143,.16),transparent),radial-gradient(900px 420px at 0% 0%,rgba(245,166,35,.14),transparent),#fff;border-bottom:1px solid var(--line)}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;padding:54px 0}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;background:#eef4fb;color:var(--blue);font-weight:700;font-size:12.5px;border-radius:999px;padding:7px 14px;letter-spacing:.04em}
.hero h1{font-size:clamp(30px,5.4vw,50px);margin-top:16px}
.hero p.lead{font-size:18px;color:var(--muted);margin:0 0 24px;max-width:36ch}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap}
.hero__art{justify-self:center;text-align:center}
.hero__art img{width:min(100%,360px);filter:drop-shadow(0 24px 50px rgba(20,40,70,.16))}
.hero__art .brand__fallback{width:220px;height:220px;font-size:64px;border-radius:40px;margin-inline:auto}

/* Sections */
section.block{padding:56px 0}
.block--tint{background:linear-gradient(180deg,#fff,#f4f8fb)}
.section-head{text-align:center;max-width:720px;margin:0 auto 36px}
.section-head .kicker{color:var(--saffron-dark);font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:12.5px}
.section-head h2{font-size:clamp(24px,4vw,34px);margin:10px 0 8px}
.section-head p{color:var(--muted);margin:0;font-size:16.5px}

.grid{display:grid;gap:18px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.card__icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:24px;margin-bottom:14px;background:#eef4fb}
.card--teal .card__icon{background:#e6f5f5}.card--saffron .card__icon{background:#fdf1dc}.card--blue .card__icon{background:#eaf1fa}
.card h3{font-size:19px;margin-bottom:8px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:14.5px}
.card ul li{margin-bottom:5px}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 14px}
.stat b{display:block;font-size:30px;color:var(--blue);line-height:1}
.stat span{display:block;margin-top:6px;color:var(--muted);font-size:13.5px;font-weight:600}

/* Travel highlight band */
.band{background:linear-gradient(135deg,var(--blue),var(--teal));color:#fff;border-radius:24px;padding:40px;display:grid;grid-template-columns:1.3fr .7fr;gap:24px;align-items:center}
.band h2{color:#fff;font-size:clamp(24px,4vw,32px)}
.band p{color:rgba(255,255,255,.9);margin:0 0 4px;font-size:16.5px}
.band .powered{font-size:13px;color:rgba(255,255,255,.75);margin-top:12px}
.band__cta{justify-self:end}

/* Trustees */
.person{text-align:center}
.person__avatar{width:78px;height:78px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;font-size:26px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--blue),var(--teal))}
.person b{display:block;color:var(--blue-dark);font-size:17px}
.person span{display:block;color:var(--saffron-dark);font-weight:600;font-size:13px;margin-top:2px}

/* Info rows (about / contact) */
.info-list{display:grid;gap:12px}
.info-row{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:13px;padding:15px}
.info-row .ic{flex:0 0 auto;font-size:20px}
.info-row b{display:block;color:var(--blue-dark);font-size:14px}
.info-row span{color:var(--muted);font-size:15px}

.lead-cta{text-align:center;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:46px 24px;box-shadow:var(--shadow)}
.lead-cta h2{font-size:clamp(24px,4vw,32px)}
.lead-cta p{color:var(--muted);max-width:46ch;margin:0 auto 24px}

/* Footer */
.site-footer{background:#10243d;color:#cdd8e6;margin-top:20px}
.site-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;padding:46px 0 26px}
.site-footer h4{color:#fff;font-size:15px;margin:0 0 14px}
.site-footer a{display:block;color:#aebed2;padding:5px 0;font-size:14.5px}
.site-footer a:hover{color:#fff}
.site-footer p{color:#9fb0c6;font-size:14px;margin:0 0 8px;max-width:34ch}
.site-footer__bar{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;font-size:13px;color:#8fa1b8;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.foot-brand strong{color:#fff;font-size:16px}

@media(max-width:900px){
  .hero__grid{grid-template-columns:1fr;text-align:center;padding:40px 0}
  .hero p.lead{margin-inline:auto}.hero__cta{justify-content:center}
  .hero__art{order:-1}
  .grid--3,.grid--4{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .band{grid-template-columns:1fr;text-align:center;padding:30px}.band__cta{justify-self:center}
  .site-footer__grid{grid-template-columns:1fr;gap:18px}
}
@media(max-width:680px){
  .nav-burger{display:flex}
  .nav{position:fixed;inset:62px 12px auto 12px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);display:none}
  .nav-toggle:checked + .nav{display:flex}
  .nav a{padding:13px 14px;font-size:16px}
  .nav .btn{margin:6px 0 0}
}
@media(max-width:520px){
  .grid--2,.grid--3,.grid--4{grid-template-columns:1fr}
  .lead-cta,.band{padding:28px 18px}
  section.block{padding:42px 0}
}