:root{
  --navy:#0B1E4B;
  --navy-2:#0D2357;
  --navy-3:#122E6E;
  --blue:#1E5EF5;
  --blue-d:#1848C4;
  --gold:#FFC42D;
  --gold-d:#E9AC12;
  --green:#22C55E;
  --green-d:#189A47;
  --bg:#F4F7FC;
  --ink:#16233F;
  --muted:#5A6B8C;
  --line:#E3EAF6;
  --white:#FFFFFF;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-sm:0 2px 10px rgba(13,35,87,.07);
  --shadow-md:0 10px 30px rgba(13,35,87,.10);
  --shadow-lg:0 18px 50px rgba(13,35,87,.16);
  --font-bn:'Hind Siliguri',sans-serif;
  --font-en:'Manrope','Hind Siliguri',sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-bn);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:min(1200px,92%);margin-inline:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-weight:700;font-size:1rem;
  padding:.85rem 1.6rem;border-radius:999px;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.btn-gold{background:var(--gold);color:var(--navy);box-shadow:0 6px 18px rgba(255,196,45,.4)}
.header-cta{padding:.6rem 1.15rem;font-size:.9rem}
.btn-gold:hover{background:#ffd058}
.btn-green{background:var(--green);color:#fff;box-shadow:0 6px 18px rgba(34,197,94,.35)}
.btn-green:hover{background:#2ad46b}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(30,94,245,.35)}
.btn-blue:hover{background:#2e6bff}
.btn-navy{background:var(--navy);color:#fff}
.btn-lg{padding:1rem 1.9rem;font-size:1.06rem}
.btn-block{width:100%}
.btn .ic{width:20px;height:20px}
.btn .arrow{transition:transform .18s}
.btn:hover .arrow{transform:translateX(4px)}


.site-header{
  position:sticky;top:0;z-index:60;background:var(--white);
  box-shadow:var(--shadow-sm);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.2rem;padding:.5rem 0}
.brand{display:flex;align-items:center;gap:.7rem;min-width:0}
.brand-logo{width:46px;height:46px;border-radius:12px;object-fit:cover;flex:none}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{font-size:1.08rem;font-weight:700;color:var(--navy);line-height:1.25}
.brand-tag{font-size:.66rem;color:var(--muted);letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.header-contact{display:flex;align-items:center;gap:.8rem;flex:none}
.header-phone{display:flex;align-items:center;gap:.6rem}
.phone-ring{
  width:38px;height:38px;border-radius:50%;flex:none;
  display:grid;place-items:center;color:var(--blue);
  border:2px solid var(--line);background:#f2f6ff;
}
.phone-ring svg{width:17px;height:17px}
.phone-nums{display:flex;flex-direction:column;line-height:1.25}
.phone-nums strong{font-family:var(--font-en);font-size:.94rem;color:var(--navy)}
.phone-nums small{color:var(--muted);font-size:.76rem}

.hamburger{display:none;flex-direction:column;gap:5px;padding:.55rem;border-radius:10px;border:1.5px solid var(--line)}
.hamburger span{width:22px;height:2.5px;background:var(--navy);border-radius:2px;transition:.2s}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* thin single-row nav (desktop) */
.main-nav{display:flex;align-items:center;gap:.15rem;flex:1;justify-content:center;min-width:0}
.nav-link{
  display:inline-flex;align-items:center;gap:.3rem;
  padding:.5rem .9rem;font-weight:600;font-size:.94rem;color:var(--ink);
  border-radius:10px;white-space:nowrap;transition:.15s;
}
.nav-link:hover{background:#eef3ff;color:var(--blue)}
.nav-link.active{background:var(--navy);color:#fff}
.caret{font-size:.7rem;transition:transform .18s}
.nav-item{position:relative}
.has-drop:hover .caret,.has-drop:focus-within .caret{transform:rotate(180deg)}
.drop-menu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:200px;
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-md);padding:.45rem;z-index:70;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease, transform .16s ease, visibility .16s;
}
.has-drop:hover .drop-menu,.has-drop:focus-within .drop-menu{
  opacity:1;visibility:visible;transform:none;
}
.drop-menu a{
  display:block;padding:.6rem .9rem;border-radius:10px;
  font-weight:600;font-size:.92rem;color:var(--ink);transition:.13s;
}
.drop-menu a:hover{background:#eef3ff;color:var(--blue)}

/* ---------- Mobile drawer ---------- */
.drawer-overlay{position:fixed;inset:0;background:rgba(8,18,45,.55);z-index:70;backdrop-filter:blur(2px)}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100dvh;width:min(320px,86vw);z-index:80;
  background:var(--white);box-shadow:-12px 0 40px rgba(8,18,45,.25);
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s ease;
}
.mobile-drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;gap:.7rem;padding:1rem;border-bottom:1px solid var(--line)}
.drawer-head img{border-radius:10px}
.drawer-head strong{display:block;color:var(--navy);font-size:1rem;line-height:1.2}
.drawer-head small{color:var(--muted);font-family:var(--font-en);font-size:.68rem;letter-spacing:.06em}
.drawer-close{margin-left:auto;width:38px;height:38px;border-radius:50%;background:#f1f5fd;color:var(--navy);font-size:1rem}
.drawer-links{display:flex;flex-direction:column;padding:.6rem;overflow-y:auto}
.drawer-links a{padding:.8rem 1rem;border-radius:12px;font-weight:600;color:var(--ink)}
.drawer-links a:hover{background:#eef3ff;color:var(--blue)}
.drawer-cta{margin-top:auto;padding:1rem;display:flex;flex-direction:column;gap:.6rem;border-top:1px solid var(--line)}


.footer{
  background:linear-gradient(180deg,#0D2357,#081436);color:#c9d6f2;
  padding:3.4rem 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr .9fr .9fr 1.25fr 1fr;gap:1.8rem}
.f-logo-row{display:flex;align-items:center;gap:.8rem;margin-bottom:1rem}
.f-logo-row img{border-radius:12px;background:#fff;padding:3px}
.f-logo-row strong{display:block;color:#fff;font-size:1.15rem;line-height:1.3}
.f-logo-row small{font-size:.74rem;color:#93a7d6}
.f-brand p{font-size:.92rem;max-width:26rem}
.f-eng{
  display:inline-block;margin-top:1rem;font-family:var(--font-en);font-weight:700;
  font-size:.72rem;letter-spacing:.14em;color:var(--gold);
  border:1px solid rgba(255,196,45,.4);padding:.35rem .9rem;border-radius:999px;
}
.f-col h3{color:#fff;font-size:1.02rem;margin-bottom:.9rem;position:relative;padding-bottom:.5rem}
.f-col h3::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;border-radius:3px;background:var(--gold)}
.f-col a{display:block;padding:.32rem 0;font-size:.93rem;color:#c9d6f2;transition:.15s}
.f-col a:hover{color:#fff;transform:translateX(3px)}
.f-contact a{font-family:var(--font-en);font-weight:600}
.f-hours{display:block;margin-top:.6rem;color:#93a7d6;font-size:.82rem;font-family:var(--font-bn)}
.f-address{
  font-style:normal;margin-top:.7rem;font-size:.88rem;line-height:1.6;color:#c9d6f2;
  border-left:3px solid var(--gold);padding-left:.75rem;
}
.f-address strong{color:#fff}
.f-bottom{
  margin-top:2.6rem;border-top:1px solid rgba(255,255,255,.12);
  padding:1.1rem 0;text-align:center;font-size:.86rem;color:#93a7d6;
}

/* =========================================================
   13. MOBILE BOTTOM NAV
   ========================================================= */
.bottom-nav{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:65;
  background:var(--white);box-shadow:0 -6px 24px rgba(13,35,87,.12);
  border-top:1px solid var(--line);
  padding:.4rem .3rem calc(.4rem + env(safe-area-inset-bottom));
}
.bn-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:.15rem;
  font-size:.68rem;font-weight:600;color:var(--muted);
  padding:.3rem .1rem;border-radius:12px;transition:.15s;
}
.bn-item span{font-size:1.15rem;line-height:1}
.bn-item.active,.bn-item:hover{color:var(--blue);background:#eef3ff}

/* =========================================================
   14. FLOATING ACTIONS
   ========================================================= */
.float-actions{
  position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:55;
  display:flex;flex-direction:column;gap:.55rem;
}
.fa-btn{
  width:66px;min-height:56px;border-radius:14px;color:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.1rem;
  box-shadow:var(--shadow-md);transition:transform .15s;
  padding:.4rem .2rem;text-align:center;
}
.fa-btn:hover{transform:translateX(-4px)}
.fa-btn span{font-size:1.2rem;line-height:1}
.fa-btn small{font-size:.6rem;font-weight:600;line-height:1.2}
.fa-call{background:var(--navy-3)}
.fa-wa{background:var(--green)}
.fa-book{background:var(--gold);color:var(--navy)}
.fa-top{background:#33415f}

.wa-fab{
  display:none;position:fixed;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));z-index:66;
  width:54px;height:54px;border-radius:50%;background:var(--green);color:#fff;
  box-shadow:0 8px 24px rgba(34,197,94,.45);
  place-items:center;
}
.wa-fab svg{width:28px;height:28px}



@media(max-width:1260px){.brand-tag{display:none}.nav-link{padding:.5rem .55rem;font-size:.88rem}}
@media(max-width:1120px){.main-nav{display:none}.hamburger{display:flex}.header-cta{display:none}}
@media(max-width:1040px){.phone-nums{display:none}}
@media(max-width:900px){.main-nav{display:none}.hamburger{display:flex}.header-cta{display:none}.phone-nums{display:none}.footer-grid{grid-template-columns:1fr 1fr}.float-actions{display:none}.wa-fab{display:grid}.bottom-nav{display:flex}body{padding-bottom:calc(66px + env(safe-area-inset-bottom))}}
@media(max-width:640px){.brand-logo{width:46px;height:46px}.brand-name{font-size:1.05rem}.brand-tag{font-size:.62rem}.phone-ring{width:40px;height:40px}.footer-grid{grid-template-columns:1fr;gap:1.8rem}}

/* Keep the entire supplied logo visible and restore explicit keyboard focus. */
.brand-logo{object-fit:contain}.brand img{height:46px}.mobile-drawer[hidden],.drawer-overlay[hidden]{display:none!important}
.site-header button:focus-visible,.site-header a:focus-visible,.mobile-drawer a:focus-visible,.mobile-drawer button:focus-visible,.footer a:focus-visible{outline:3px solid #1e5ef5;outline-offset:3px}
.drawer-links a[aria-current="page"]{background:#0b1e4b;color:white}
dialog{font-family:'Hind Siliguri',sans-serif}dialog .detail-section ul{list-style:disc}