:root{--navy:#0b3a8c;--navy2:#071f4d;--gold:#d4a017;--gold2:#f0c552;--ink:#13203a;--mute:#566277;--bg:#f4f7fc;--card:#fff;--line:#dbe4f2;--tint:#e8f0ff;--r:14px}
@media (prefers-color-scheme:dark){:root{--ink:#e8eefb;--mute:#a3b0c7;--bg:#0a1223;--card:#111d36;--line:#22335a;--tint:#16284d}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;font-family:"Hind Siliguri",system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:17px}
a{color:inherit;text-decoration:none}
img{max-width:100%}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
.w{max-width:1160px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;margin:0}
h2{font-size:clamp(25px,3.4vw,36px);color:var(--navy);letter-spacing:-.01em}
@media (prefers-color-scheme:dark){h2{color:#9fc0ff}}
.sub{color:var(--mute);margin:10px 0 34px;max-width:60ch}
section{padding:72px 0}
.alt{background:var(--card);border-block:1px solid var(--line)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--gold);color:#1a1300;font:inherit;font-weight:700;padding:12px 22px;border-radius:10px;border:0;cursor:pointer;transition:transform .15s,background .15s}
.btn:hover{background:var(--gold2);transform:translateY(-1px)}
.btn.o{background:transparent;border:2px solid rgba(255,255,255,.7);color:#fff}
.btn.o:hover{background:rgba(255,255,255,.12)}
.btn.n{background:var(--navy);color:#fff}
.btn.n:hover{background:#0f4bb5}

/* top bar + header */
.top{background:var(--navy2);color:#d6e2fb;font-size:14px}
.top .w{display:flex;flex-wrap:wrap;gap:4px 24px;align-items:center;padding-block:7px}
.top a:hover{color:var(--gold2)}
.lgb{margin-left:auto;background:var(--gold);color:#1a1300;border:0;border-radius:6px;padding:3px 14px;font:inherit;font-weight:700;cursor:pointer}
header{position:sticky;top:0;z-index:40;background:var(--card);border-bottom:3px solid var(--gold)}
header .w{display:flex;align-items:center;gap:14px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--navy);line-height:1.15;margin-right:auto}
@media (prefers-color-scheme:dark){.brand{color:#cfe0ff}}
.brand img{height:50px;width:50px;object-fit:contain;border-radius:8px;background:#fff}
.brand small{display:block;font-weight:500;color:var(--gold);font-size:12px;letter-spacing:.04em}
nav{display:flex;gap:2px}
nav a{padding:9px 13px;border-radius:8px;font-weight:500;font-size:16px;position:relative}
nav a:hover{background:var(--tint)}
nav a[aria-current]{color:var(--navy);font-weight:700}
nav a[aria-current]:after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:3px;border-radius:2px;background:var(--gold)}
@media (prefers-color-scheme:dark){nav a[aria-current]{color:#fff}}
.burger{display:none;background:var(--tint);border:0;border-radius:8px;width:44px;height:44px;font-size:22px;cursor:pointer;color:var(--ink)}
@media (max-width:900px){
 .burger{display:block}
 header .btn{display:none}
 nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;background:var(--card);padding:10px 20px 16px;border-bottom:3px solid var(--gold);box-shadow:0 14px 24px rgba(7,31,77,.15)}
 nav.open{display:flex}
 nav a{padding:12px 10px}
 nav a[aria-current]:after{left:10px;right:auto;width:28px}
}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy2),var(--navy) 62%,#1b5bc4);color:#fff;padding:64px 0 110px;position:relative;overflow:hidden}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;border:1.5px dashed rgba(240,197,82,.4)}
.hero:before{width:640px;height:640px;right:-200px;top:-260px}
.hero:after{width:420px;height:420px;right:-90px;top:-150px;border-style:solid;border-width:50px;border-color:rgba(212,160,23,.14)}
.hero .w{position:relative;z-index:1}
.hero h1{font-size:clamp(30px,5.4vw,54px);max-width:17em;letter-spacing:-.015em}
.hero p{max-width:54ch;color:#d6e2fb;font-size:19px;margin:16px 0 26px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.pagehead{background:linear-gradient(135deg,var(--navy2),var(--navy));color:#fff;padding:52px 0 56px;position:relative;overflow:hidden}
.pagehead:after{content:"";position:absolute;right:-80px;top:-120px;width:340px;height:340px;border-radius:50%;border:44px solid rgba(212,160,23,.15)}
.pagehead .w{position:relative;z-index:1}
.pagehead h1{font-size:clamp(28px,4.4vw,44px)}
.pagehead p{color:#cfdcf6;max-width:56ch;margin:12px 0 0;font-size:18px}
.crumb{font-size:14px;color:#a9bde6;margin-bottom:10px}
.crumb a:hover{color:var(--gold2)}

/* boarding-pass search */
.pass{margin:-70px auto 0;position:relative;z-index:3;background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:0 18px 40px rgba(7,31,77,.22);overflow:hidden}
.pass:before,.pass:after{content:"";position:absolute;top:58px;width:22px;height:22px;border-radius:50%;background:var(--bg);border:1px solid var(--line);z-index:1}
.pass:before{left:-12px}.pass:after{right:-12px}
.tabs{display:flex;background:var(--tint);overflow-x:auto;border-bottom:2px dashed var(--line)}
.tabs button{flex:1;min-width:96px;padding:15px 10px;border:0;background:none;font:inherit;font-weight:600;color:var(--mute);cursor:pointer;border-bottom:3px solid transparent}
.tabs button[aria-selected="true"]{background:var(--card);color:var(--navy);border-bottom-color:var(--gold)}
@media (prefers-color-scheme:dark){.tabs button[aria-selected="true"]{color:#fff}}
.fm{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;padding:22px;align-items:end}
.fm label{font-size:13px;color:var(--mute);font-weight:600;display:block}
.fm input,.fm select,.ct input,.ct textarea{width:100%;padding:11px;margin-top:4px;border:1px solid var(--line);border-radius:10px;font:inherit;background:var(--bg);color:var(--ink)}
.fm .btn{justify-content:center;height:48px}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:border-color .2s,box-shadow .2s}
a.card:hover{border-color:var(--gold);box-shadow:0 10px 26px rgba(7,31,77,.12)}
.card h3{margin:12px 0 6px;font-size:19px}
.card p{margin:0;color:var(--mute);font-size:15.5px}
.ic{font-size:28px;width:54px;height:54px;display:grid;place-items:center;border-radius:14px;background:var(--tint)}
.band{background:var(--navy2);color:#fff}
.band h2{color:#fff}.band .sub{color:#c4d3f0}
.band .card{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.18)}
.band .card p,.band li{color:#c4d3f0}
.band .ic{background:rgba(212,160,23,.22)}
.ticks{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:6px;font-size:15.5px;color:var(--mute)}
.ticks li{padding-left:26px;position:relative}
.ticks li:before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:700}
.more{display:inline-block;margin-top:14px;font-weight:700;color:var(--navy)}
@media (prefers-color-scheme:dark){.more{color:#9fc0ff}}
.head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.head .sub{margin:8px 0 0}

/* destinations */
.dgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.dest{position:relative;overflow:hidden;min-height:210px;border-radius:var(--r);color:#fff;padding:18px;display:flex;flex-direction:column;justify-content:flex-end;font-weight:700;font-size:21px;text-shadow:0 1px 3px rgba(0,0,0,.5)}
.dest svg{position:absolute;inset:0;width:100%;height:100%}
.dest:after{content:"";position:absolute;left:0;right:0;bottom:0;height:62%;background:linear-gradient(transparent,rgba(0,0,0,.65))}
.dest b,.dest span,.dest em{position:relative;z-index:1}
.dest span{font-weight:400;font-size:14px;opacity:.95}
.dest em{font-style:normal;font-weight:400;font-size:14px;margin-top:6px;opacity:.95;line-height:1.5}
.d1{background:linear-gradient(180deg,#4aa3e8,#b9dcf5)}.d2{background:linear-gradient(180deg,#e8a24a,#f6d9a0)}.d3{background:linear-gradient(180deg,#1e3d8f,#6f8be0)}.d4{background:linear-gradient(180deg,#ef8a5a,#f6c98a)}.d5{background:linear-gradient(180deg,#143a8c,#4a8ad6)}.d6{background:linear-gradient(180deg,#6cc4ee,#bfe6f6)}.d7{background:linear-gradient(180deg,#e07a3c,#a02c2c)}.d8{background:linear-gradient(180deg,#5fd0e0,#1a8fc0)}

/* steps, faq, contact */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;counter-reset:s;padding:0;list-style:none;margin:0}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;position:relative}
.steps li:before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;margin-bottom:10px}
.steps b{display:block;font-size:18px}.steps span{color:var(--mute);font-size:15.5px}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;padding:12px 0}
details p{margin:0 0 14px;color:var(--mute)}
.ct{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.ct dl{margin:0}.ct dt{font-weight:700;color:var(--navy);margin-top:14px}.ct dt:first-child{margin-top:0}
@media (prefers-color-scheme:dark){.ct dt{color:#9fc0ff}}
.ct dd{margin:0;color:var(--mute);overflow-wrap:anywhere}
.ct dd a:hover{color:var(--navy);text-decoration:underline}
.ct form{display:grid;gap:10px}
.cbar{background:linear-gradient(120deg,var(--navy),#1b5bc4);color:#fff;border-radius:20px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cbar h2{color:#fff;font-size:clamp(22px,3vw,30px)}.cbar p{margin:6px 0 0;color:#cfdcf6}

/* footer */
footer{background:var(--navy2);color:#c4d3f0;padding:52px 0 0;font-size:15px}
.fg{display:grid;grid-template-columns:1.5fr 1fr 1.3fr;gap:30px}
@media (max-width:760px){.fg{grid-template-columns:1fr}}
footer h4{margin:0 0 10px;color:#fff;font-size:16px}
footer a{display:block;padding:3px 0}footer a:hover{color:var(--gold2)}
footer p{margin:0}
.copy{margin-top:36px;padding:16px 0;border-top:1px solid rgba(255,255,255,.12);text-align:center;font-size:14px}
.wa{position:fixed;right:16px;bottom:16px;z-index:50;background:#25d366;color:#fff;font-weight:700;padding:13px 18px;border-radius:999px;box-shadow:0 6px 18px rgba(0,0,0,.28)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}