/* =============================================================
   The Naath — Health, Education & Development Society
   Custom theme layered on top of Bootstrap 5 (blue palette)
   ============================================================= */

:root {
  --tn-blue-900: #082f52;
  --tn-blue-800: #0b3d6b;
  --tn-blue-700: #0d5aa7;
  --tn-blue-600: #1470c9;
  --tn-blue-500: #1e88e5;
  --tn-blue-300: #6bb5f0;
  --tn-blue-100: #e8f2fc;
  --tn-cyan: #00b4d8;
  --tn-accent: #ffb703;          /* warm accent for donate / highlights */
  --tn-ink: #12263a;
  --tn-muted: #5a6b7b;
  --tn-line: #e4ebf2;
  --tn-bg-soft: #f5f9fd;

  --tn-shadow-sm: 0 4px 14px rgba(13, 90, 167, .08);
  --tn-shadow-md: 0 12px 34px rgba(13, 90, 167, .14);
  --tn-radius: 16px;

  --bs-primary: var(--tn-blue-700);
}

* { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  color: var(--tn-ink);
  background: #fff;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, .display-4, .display-5 {
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--tn-blue-900);
}

.text-muted-2 { color: var(--tn-muted) !important; }
.bg-soft { background: var(--tn-bg-soft); }
.lead { color: var(--tn-muted); }

a { text-decoration: none; }

/* ---------- Utility ---------- */
.section { padding: 92px 0; }
@media (max-width: 767px){ .section { padding: 64px 0; } }

.section-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  text-transform: uppercase; letter-spacing: .14em;
  font-size: .78rem; font-weight: 700; color: var(--tn-blue-600);
  background: var(--tn-blue-100);
  padding: .4rem .9rem; border-radius: 999px;
  margin-bottom: 1rem;
}
.section-title { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
.title-underline { width: 64px; height: 4px; border-radius: 4px;
  background: linear-gradient(90deg, var(--tn-blue-600), var(--tn-cyan)); }

.btn-brand {
  --bs-btn-bg: var(--tn-blue-700);
  --bs-btn-border-color: var(--tn-blue-700);
  --bs-btn-hover-bg: var(--tn-blue-800);
  --bs-btn-hover-border-color: var(--tn-blue-800);
  --bs-btn-active-bg: var(--tn-blue-900);
  --bs-btn-color: #fff; --bs-btn-hover-color:#fff; --bs-btn-active-color:#fff;
  font-weight: 600; box-shadow: var(--tn-shadow-sm);
}
.btn-donate {
  --bs-btn-bg: var(--tn-accent); --bs-btn-border-color: var(--tn-accent);
  --bs-btn-hover-bg:#f2a600; --bs-btn-hover-border-color:#f2a600;
  --bs-btn-color: #3a2b00; --bs-btn-hover-color:#3a2b00;
  font-weight: 700;
}
.btn-outline-brand {
  --bs-btn-color: var(--tn-blue-700); --bs-btn-border-color: var(--tn-blue-700);
  --bs-btn-hover-bg: var(--tn-blue-700); --bs-btn-hover-border-color: var(--tn-blue-700);
  --bs-btn-hover-color:#fff; font-weight:600;
}
.btn-lg { padding: .8rem 1.6rem; }

/* ---------- Navbar ---------- */
.navbar {
  transition: background .3s ease, box-shadow .3s ease, padding .3s ease;
  padding: .9rem 0;
}
.navbar-brand img { height: 46px; width: auto; transition: height .3s ease; }
.navbar-brand span { font-weight: 800; color:#fff; line-height:1; font-size:1.15rem; }
.navbar-brand small { color: rgba(255,255,255,.75); font-weight:500; letter-spacing:.05em; }
.navbar .nav-link {
  color: rgba(255,255,255,.9) !important; font-weight: 600; margin: 0 .35rem;
  position: relative;
}
.navbar .nav-link::after {
  content:""; position:absolute; left:.7rem; right:.7rem; bottom:.35rem; height:2px;
  background: var(--tn-cyan); transform: scaleX(0); transform-origin:left; transition: transform .25s ease;
}
.navbar .nav-link:hover::after, .navbar .nav-link.active::after { transform: scaleX(1); }

.navbar.scrolled {
  background: #fff !important; box-shadow: 0 6px 24px rgba(8,47,82,.10); padding:.55rem 0;
}
.navbar.scrolled .navbar-brand span { color: var(--tn-blue-900); }
.navbar.scrolled .navbar-brand small { color: var(--tn-muted); }
.navbar.scrolled .nav-link { color: var(--tn-ink) !important; }
.navbar.scrolled .navbar-brand img { height: 40px; }
.navbar-toggler { border-color: rgba(255,255,255,.5); }
.navbar.scrolled .navbar-toggler { border-color: var(--tn-line); }
.navbar.scrolled .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230b3d6b' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.4' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
@media (max-width: 991px){
  .navbar-collapse { background:#fff; margin-top:.6rem; border-radius:14px; padding:1rem; box-shadow: var(--tn-shadow-md); }
  .navbar .nav-link { color: var(--tn-ink) !important; }
  .navbar .nav-link::after { display:none; }
}

/* ---------- Hero (image slideshow + overlay) ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  color:#fff; padding: 140px 0 90px; overflow: hidden;
}
.hero-carousel, .hero-carousel .carousel-inner { position: absolute; inset: 0; z-index: 0; }
.hero-carousel .carousel-item {
  background-position: center; background-size: cover; background-repeat: no-repeat;
  min-height: 100vh;
}
.hero-carousel .carousel-item::before { content:""; }
.hero-overlay {
  position:absolute; inset:0; z-index:1;
  background: linear-gradient(120deg, rgba(8,47,82,.93) 0%, rgba(13,90,167,.80) 55%, rgba(0,180,216,.50) 100%);
}
.hero-content { position: relative; z-index: 2; }
.hero-indicators { z-index: 3; margin-bottom: 1.6rem; }
.hero-indicators [data-bs-target] { width: 34px; height: 4px; border-radius: 4px; }
.hero h1 { color:#fff; font-size: clamp(2.1rem, 5vw, 3.6rem); line-height:1.08; }
.hero .lead { color: rgba(255,255,255,.9); font-size: 1.18rem; }
.hero .highlight { color: #ffd166; }
.hero-badge {
  display:inline-flex; gap:.5rem; align-items:center; background: rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.25); backdrop-filter: blur(6px);
  padding:.5rem 1rem; border-radius:999px; font-weight:600; font-size:.85rem; margin-bottom:1.4rem;
}
.hero-stats { margin-top: 3rem; }
.hero-stat { border-left: 3px solid rgba(255,255,255,.35); padding-left: 1rem; }
.hero-stat .num { font-size: 1.9rem; font-weight: 800; color:#fff; }
.hero-stat .lbl { font-size: .85rem; color: rgba(255,255,255,.8); }
.hero-scroll { position:absolute; bottom: 26px; left:50%; transform:translateX(-50%); color:rgba(255,255,255,.8); animation: bob 1.8s infinite; }
@keyframes bob { 0%,100%{transform:translate(-50%,0)} 50%{transform:translate(-50%,10px)} }

/* ---------- Cards / features ---------- */
.feature-card, .service-card, .value-card, .team-card, .finance-card {
  background:#fff; border:1px solid var(--tn-line); border-radius: var(--tn-radius);
  box-shadow: var(--tn-shadow-sm); transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  height: 100%;
}
.feature-card:hover, .service-card:hover, .value-card:hover, .team-card:hover, .finance-card:hover {
  transform: translateY(-6px); box-shadow: var(--tn-shadow-md); border-color: var(--tn-blue-300);
}
.icon-badge {
  width: 62px; height: 62px; border-radius: 16px; display:grid; place-items:center;
  font-size: 1.6rem; color:#fff; background: linear-gradient(135deg, var(--tn-blue-600), var(--tn-cyan));
  box-shadow: 0 8px 20px rgba(13,90,167,.28);
}
.icon-badge.soft { background: var(--tn-blue-100); color: var(--tn-blue-700); box-shadow:none; }

/* service pills */
.service-card { padding: 1.6rem; text-align:center; }
.service-card .icon-badge { margin: 0 auto 1rem; }
.service-card h6 { font-weight:700; margin:0; color: var(--tn-blue-900); }

/* ---------- About image collage ---------- */
.about-img-main { border-radius: var(--tn-radius); box-shadow: var(--tn-shadow-md); width:100%; object-fit:cover; }
.about-badge {
  position:absolute; bottom: -22px; right: -8px; background:#fff; border-radius: 14px;
  box-shadow: var(--tn-shadow-md); padding: 1rem 1.3rem; display:flex; gap:.8rem; align-items:center;
}
.about-badge .num { font-size:1.6rem; font-weight:800; color: var(--tn-blue-700); line-height:1; }

/* ---------- Vision Mission Value ---------- */
.vmv { background: linear-gradient(140deg, var(--tn-blue-900), var(--tn-blue-700)); color:#fff; }
.vmv .section-title, .vmv h3 { color:#fff; }
.value-card.dark {
  background: rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.14); color:#fff; padding:2rem;
}
.value-card.dark:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.3); }
.value-card.dark h4 { color:#fff; }
.value-card.dark p { color: rgba(255,255,255,.82); margin:0; }

/* ---------- Ambulance banner ---------- */
.ambulance {
  border-radius: 22px; overflow:hidden; background: var(--tn-blue-100);
  box-shadow: var(--tn-shadow-md);
}
.ambulance .amb-media { min-height: 300px; background: #fff center/contain no-repeat; }

/* ---------- Gallery ---------- */
.gallery-item {
  position:relative; overflow:hidden; border-radius: 12px; cursor: pointer; aspect-ratio: 4/3;
  box-shadow: var(--tn-shadow-sm);
}
.gallery-item img { width:100%; height:100%; object-fit:cover; transition: transform .5s ease; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item::after {
  content:"\F52A"; font-family:"bootstrap-icons"; position:absolute; inset:0;
  display:grid; place-items:center; color:#fff; font-size:1.6rem;
  background: linear-gradient(180deg, rgba(8,47,82,0), rgba(8,47,82,.55));
  opacity:0; transition: opacity .3s ease;
}
.gallery-item:hover::after { opacity:1; }

/* ---------- Team ---------- */
.team-card { padding: 2rem 1.2rem; text-align:center; }
.team-avatar {
  width: 92px; height: 92px; border-radius: 50%; margin: 0 auto 1rem;
  display:grid; place-items:center; color:#fff; font-weight:800; font-size:1.8rem;
  background: linear-gradient(135deg, var(--tn-blue-600), var(--tn-cyan));
  box-shadow: 0 8px 22px rgba(13,90,167,.3);
}
.team-card h6 { margin:0; font-weight:700; color: var(--tn-blue-900); }
.team-role { color: var(--tn-blue-600); font-weight:600; font-size:.86rem; }
.team-card.lead-member .team-avatar { background: linear-gradient(135deg, var(--tn-accent), #f2a600); color:#3a2b00; }
.team-avatar.has-photo { background: none; overflow: hidden; padding: 0; }
.team-avatar.has-photo img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- About intro video ---------- */
.video-frame {
  border-radius: var(--tn-radius); overflow: hidden; box-shadow: var(--tn-shadow-md);
  border: 4px solid #fff; background:#000;
}
.video-frame iframe { border: 0; width: 100%; height: 100%; }

/* ---------- Finances ---------- */
.finance-card { padding: 1.6rem; display:flex; gap:1rem; align-items:center; }
.finance-card .fi {
  width:54px; height:54px; border-radius:12px; display:grid; place-items:center; flex:0 0 auto;
  font-size:1.5rem; background: var(--tn-blue-100); color: var(--tn-blue-700);
}
.finance-card.pdf .fi { background:#fdecea; color:#d64541; }

/* ---------- Donations ---------- */
.donate-card {
  border-radius: var(--tn-radius); padding: 2rem; height:100%;
  border: 1px solid var(--tn-line); background:#fff; box-shadow: var(--tn-shadow-sm);
}
.donate-card.featured { background: linear-gradient(140deg, var(--tn-blue-800), var(--tn-blue-600)); color:#fff; border:none; }
.donate-card.featured h4, .donate-card.featured .bank-row strong { color:#fff; }
.donate-card.featured .bank-row span { color: rgba(255,255,255,.75); }
.bank-row { display:flex; justify-content:space-between; gap:1rem; padding:.6rem 0; border-bottom:1px dashed rgba(0,0,0,.08); }
.donate-card.featured .bank-row { border-color: rgba(255,255,255,.2); }
.bank-row span { color: var(--tn-muted); font-size:.85rem; }
.bank-row strong { color: var(--tn-blue-900); font-weight:700; word-break: break-word; text-align:right; }

/* ---------- Contact ---------- */
.contact-info-item { display:flex; gap:1rem; align-items:flex-start; margin-bottom:1.6rem; }
.contact-info-item .ci {
  width:50px; height:50px; border-radius:12px; flex:0 0 auto; display:grid; place-items:center;
  color:#fff; font-size:1.3rem; background: linear-gradient(135deg, var(--tn-blue-600), var(--tn-cyan));
}
.form-control { border-color: var(--tn-line); padding:.75rem 1rem; }
.form-control:focus { border-color: var(--tn-blue-500); box-shadow: 0 0 0 .2rem rgba(30,136,229,.15); }

/* ---------- Footer ---------- */
footer.site-footer { background: var(--tn-blue-900); color: rgba(255,255,255,.72); padding: 70px 0 26px; }
footer.site-footer h6 { color:#fff; font-weight:700; margin-bottom:1.1rem; }
footer.site-footer a { color: rgba(255,255,255,.72); transition: color .2s ease; }
footer.site-footer a:hover { color: var(--tn-cyan); }
.footer-bottom { border-top:1px solid rgba(255,255,255,.12); margin-top:2.5rem; padding-top:1.4rem; font-size:.85rem; }

/* ---------- Back to top ---------- */
#backToTop {
  position: fixed; right: 22px; bottom: 22px; width:48px; height:48px; border-radius:50%;
  border:none; background: var(--tn-blue-700); color:#fff; font-size:1.2rem; z-index: 1030;
  box-shadow: var(--tn-shadow-md); opacity:0; visibility:hidden; transform: translateY(12px);
  transition: all .3s ease; cursor:pointer;
}
#backToTop.show { opacity:1; visibility:visible; transform: translateY(0); }
#backToTop:hover { background: var(--tn-blue-900); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity:0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity:1; transform: none; }

/* ---------- Lightbox navigation ---------- */
#lightboxImg { max-height: 82vh; width: auto; margin: 0 auto; }
.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 48px; height: 48px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(255,255,255,.9); color: var(--tn-blue-900); font-size: 1.4rem;
  display: grid; place-items: center; transition: background .2s ease, transform .2s ease;
  box-shadow: var(--tn-shadow-md);
}
.lb-nav:hover { background:#fff; transform: translateY(-50%) scale(1.08); }
.lb-prev { left: 8px; }
.lb-next { right: 8px; }
.lb-counter {
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%); z-index: 3;
  background: rgba(8,47,82,.75); color:#fff; padding:.25rem .8rem; border-radius:999px; font-size:.85rem;
}
@media (max-width: 575px){ .lb-nav { width:40px; height:40px; font-size:1.1rem; } }

/* ---------- Contact panel & map ---------- */
.contact-panel {
  background:#fff; border:1px solid var(--tn-line); border-radius: var(--tn-radius);
  box-shadow: var(--tn-shadow-sm); padding: 2rem;
}
.map-frame {
  border-radius: var(--tn-radius); overflow: hidden; box-shadow: var(--tn-shadow-sm);
  border: 1px solid var(--tn-line); min-height: 340px;
}
.map-frame iframe { border: 0; width: 100%; height: 100%; min-height: 340px; display: block; }