/* =====================================================================
   IITACB 2026 — Central theme
   Single source of truth for the public site, auth pages, and the
   logged-in booking pages. Self-contained (no build step) so every
   layout can link it directly. On the booking pages this loads AFTER
   Bootstrap so the brand tokens/buttons win.
   ===================================================================== */

:root{
    --navy:#16213E; --indigo:#1E2A5E; --indigo-light:#2E3E7C; --orange:#FF6B35; --orange-dark:#E85A2A;
    --teal:#12A594; --bg:#F6F7FB; --card:#FFFFFF; --line:#E4E7F1; --muted:#6B7290; --danger:#d9534f;
}

/* ---------- Base ---------- */
*{box-sizing:border-box;}
/* header.site is sticky at top:0, so an in-page jump (#how, #spaces, …) lands
   the target under it. Offsetting the scroll port by the header's height keeps
   the section heading visible. Kept in step with .headerrow padding + .logo-img
   height at each breakpoint (see the media queries at the foot of this file). */
html{scroll-padding-top:120px;}
body{margin:0;font-family:'Segoe UI',Arial,sans-serif;background:var(--bg);color:var(--navy);}
a{text-decoration:none;color:inherit;}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- Buttons (brand) ---------- */
.btn{padding:9px 18px;border-radius:8px;font-weight:700;font-size:14px;display:inline-block;border:2px solid transparent;cursor:pointer;line-height:1.2;text-align:center;}
.btn-primary{background:var(--orange);color:#fff;border-color:var(--orange);}
.btn-primary:hover{background:var(--orange-dark);border-color:var(--orange-dark);color:#fff;}
.btn-outline{border-color:var(--indigo);color:var(--indigo);background:#fff;}
.btn-outline:hover{background:var(--indigo);color:#fff;}
.btn-lg{padding:13px 24px;font-size:15px;border-radius:9px;}

/* ---------- Marketing / public chrome ---------- */
.topbar{background:var(--navy);color:#fff;font-size:12.5px;}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;padding:6px 32px;}
.topbar .left span{margin-right:18px;opacity:.85;}
.topbar .right a{margin-left:16px;opacity:.9;}
.topbar .right a:hover{opacity:1;color:#fff;}

header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;}
.headerrow{display:flex;align-items:center;justify-content:space-between;padding:14px 32px;gap:16px;}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;font-size:19px;color:var(--indigo);}
.logo .logo-img{height:80px;width:auto;display:block;}
.logo small{display:block;font-size:11px;font-weight:700;color:var(--muted);letter-spacing:.3px;text-transform:uppercase;max-width:130px;line-height:1.25;}
nav.mainnav{display:flex;gap:22px;font-weight:600;font-size:16px;align-items:center;margin-right:auto;}
nav.mainnav a{color:var(--navy);}
nav.mainnav a:hover{color:var(--orange);}
nav.mainnav a.active{color:var(--orange-dark);}
.navcta{display:flex;gap:10px;align-items:center;}

/* User menu (logged-in chrome) */
.usermenu{position:relative;}
.usermenu-btn{display:flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--line);border-radius:999px;padding:7px 14px 7px 10px;font-weight:700;font-size:14px;color:var(--indigo);cursor:pointer;}
.usermenu-btn .av{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,var(--indigo),var(--orange));color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;}
.usermenu-list{position:absolute;right:0;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 12px 32px rgba(20,30,70,.14);min-width:220px;padding:8px;display:none;z-index:60;}
.usermenu.open .usermenu-list{display:block;}
.usermenu-list .who{padding:8px 10px 10px;border-bottom:1px solid var(--line);margin-bottom:6px;}
.usermenu-list .who b{display:block;font-size:14px;color:var(--navy);}
.usermenu-list .who span{display:block;font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.usermenu-list a,.usermenu-list button{display:flex;align-items:center;gap:8px;width:100%;text-align:left;background:none;border:none;padding:9px 10px;border-radius:8px;font-size:14px;font-weight:600;color:var(--navy);cursor:pointer;font-family:inherit;}
.usermenu-list a:hover,.usermenu-list button:hover{background:var(--bg);color:var(--orange);}
.usermenu-list button.danger{color:var(--danger);}

.navtoggle{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px;}
.navtoggle span{width:24px;height:2px;background:var(--indigo);display:block;border-radius:2px;}

/* ---------- Section / page helpers ---------- */
.section{padding:56px 0;}
.sectiontag{color:var(--orange-dark);font-weight:800;font-size:12.5px;letter-spacing:1px;text-transform:uppercase;margin-bottom:8px;}
h2.h2{font-size:28px;margin:0 0 10px;font-weight:800;color:var(--navy);}
p.lead{color:var(--muted);font-size:15px;max-width:640px;margin:0 0 30px;line-height:1.6;}
.pagehead{background:linear-gradient(135deg,var(--indigo),#28376F);color:#fff;padding:34px 0;}
.crumb{font-size:12.5px;color:#B9C0E4;margin-bottom:8px;}
.crumb a{color:#B9C0E4;}
.crumb a:hover{color:#fff;}
.pagehead h1{margin:0 0 8px;font-size:28px;}
.pagehead p{margin:0;color:#CBD1EA;font-size:14.5px;max-width:680px;}

/* ---------- Footer ---------- */
footer.site{background:var(--navy);color:#B9BFDD;padding:44px 0 24px;font-size:13px;margin-top:20px;}
footer.site .fgrid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px;margin-bottom:30px;}
footer.site h5{color:#fff;font-size:13.5px;margin:0 0 12px;}
footer.site .fgrid a{display:block;color:#B9BFDD;margin-bottom:8px;}
footer.site .fgrid a:hover{color:#fff;}
footer.site .fbottom{border-top:1px solid rgba(255,255,255,.12);padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}

/* ---------- Auth (split-screen) ---------- */
.auth-shell{display:grid;grid-template-columns:1.05fr 1fr;min-height:100vh;}
.auth-brand{position:relative;overflow:hidden;color:#fff;padding:48px 54px;display:flex;flex-direction:column;justify-content:space-between;
    background:radial-gradient(900px 400px at 85% -10%, rgba(255,107,53,.22), transparent 60%), linear-gradient(160deg,#161F3D 0%, #1E2A5E 60%, #28376F 100%);}
.auth-logo{display:flex;align-items:center;gap:14px;font-weight:800;font-size:16px;color:#fff;}
.auth-logo .logo-chip{background:#fff;border-radius:12px;padding:8px 12px;display:inline-flex;align-items:center;flex:0 0 auto;}
.auth-logo .logo-chip img{height:42px;width:auto;display:block;}
.auth-logo small{display:block;font-size:11px;font-weight:600;color:#B9C0E4;letter-spacing:.4px;text-transform:uppercase;}
.auth-brand h1{font-size:34px;line-height:1.2;margin:28px 0 14px;font-weight:800;max-width:440px;}
.auth-brand h1 span{color:var(--orange);}
.auth-brand p.tag{color:#CBD1EA;font-size:15px;line-height:1.6;max-width:420px;margin:0 0 26px;}
.feats{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px;}
.feats li{display:flex;align-items:center;gap:12px;font-size:14.5px;color:#E6E9F6;}
.feats .tk{width:26px;height:26px;border-radius:8px;background:rgba(18,165,148,.18);border:1px solid rgba(18,165,148,.5);color:#5fe4d0;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:13px;flex:0 0 auto;}
.brand-foot{font-size:12px;color:#9BA2C4;}

.auth-panel{background:var(--bg);display:flex;align-items:flex-start;justify-content:center;padding:48px 32px;overflow-y:auto;}
.auth-card{width:100%;margin:auto 0;}
.auth-card.narrow{max-width:440px;}
.auth-card.wide{max-width:620px;}
.auth-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;font-size:13.5px;}
.auth-top a{color:var(--muted);font-weight:600;}
.auth-top a:hover{color:var(--orange);}
.auth-tabs{display:flex;gap:6px;padding:5px;background:#EAEDF7;border-radius:999px;margin-bottom:24px;}
.auth-tabs a{flex:1;text-align:center;padding:10px 0;border-radius:999px;font-weight:700;font-size:14px;color:var(--muted);}
.auth-tabs a.on{background:#fff;color:var(--indigo);box-shadow:0 2px 8px rgba(20,30,70,.08);}
.auth-h{margin:0 0 4px;font-size:23px;font-weight:800;}
.auth-sub{margin:0 0 22px;color:var(--muted);font-size:14px;}

/* ---------- Form controls (shared) ---------- */
.field{margin-bottom:14px;}
.field > label{display:block;font-size:12.5px;font-weight:700;color:var(--navy);margin-bottom:6px;}
.authinp{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--navy);}
.authinp::placeholder{color:#9AA1BC;}
.authinp:focus{outline:none;border-color:var(--indigo);box-shadow:0 0 0 3px rgba(30,42,94,.12);}
.authinp.is-invalid{border-color:var(--danger);}
select.authinp{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236B7290' stroke-width='3'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px;}
.err{color:var(--danger);font-size:12px;margin-top:5px;min-height:1px;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.phonegroup{display:grid;grid-template-columns:150px 1fr;gap:10px;}
.radios{display:flex;gap:10px;}
.radiochip{flex:1;position:relative;}
.radiochip input{position:absolute;opacity:0;}
.radiochip label{display:block;text-align:center;padding:10px;border:1.5px solid var(--line);border-radius:10px;font-weight:700;font-size:14px;color:var(--muted);cursor:pointer;}
.radiochip input:checked + label{border-color:var(--indigo);background:rgba(30,42,94,.06);color:var(--indigo);}
.btn-submit{width:100%;padding:13px;border:none;border-radius:11px;background:var(--orange);color:#fff;font-weight:800;font-size:15.5px;cursor:pointer;margin-top:6px;}
.btn-submit:hover{background:var(--orange-dark);}
.auth-alt{text-align:center;margin-top:16px;font-size:13.5px;color:var(--muted);}
.auth-alt a,.auth-link{color:var(--indigo);font-weight:700;}
.muted-note{text-align:center;font-size:12.5px;color:var(--muted);margin-top:14px;}

/* ---------- Alerts (brand) ---------- */
.theme-alert{border-radius:10px;padding:12px 14px;font-size:13.5px;margin-bottom:16px;border:1px solid transparent;}
.theme-alert.success{background:rgba(18,165,148,.1);border-color:rgba(18,165,148,.3);color:#0b7a6c;}
.theme-alert.danger,.theme-alert.error{background:rgba(217,83,79,.09);border-color:rgba(217,83,79,.3);color:#a4322e;}
.theme-alert ul{margin:6px 0 0;padding-left:18px;}

/* ---------- Booking pages (loaded over Bootstrap) ----------
   `body`-scoped so brand tokens win regardless of stylesheet load order
   (Bootstrap vs. this file under Vite HMR). Only touches brand surfaces. */
body{background:var(--bg);color:var(--navy);}
body .btn.btn-primary{background:var(--orange);border-color:var(--orange);color:#fff;}
body .btn.btn-primary:hover,body .btn.btn-primary:focus{background:var(--orange-dark);border-color:var(--orange-dark);}
body .btn.btn-outline-primary{color:var(--indigo);border-color:var(--indigo);}
body .btn.btn-outline-primary:hover{background:var(--indigo);border-color:var(--indigo);color:#fff;}
body a{color:var(--indigo);}
body a:hover{color:var(--orange);}
.app-main{flex:1 1 auto;}
.app-main .container{padding-top:28px;padding-bottom:28px;}

/* Legacy primary CTA used on the home + booking pages */
body .signin-btn{display:inline-block;background:var(--orange);color:#fff;border:none;border-radius:9px;padding:11px 24px;font-weight:800;font-size:15px;cursor:pointer;text-decoration:none;line-height:1.2;}
body .signin-btn:hover{background:var(--orange-dark);color:#fff;}

/* Bootstrap component brand overrides (semantic status colors left intact) */
body .badge.bg-primary{background-color:var(--indigo)!important;}
body .btn-link{color:var(--indigo);}
body .nav-tabs{border-bottom-color:var(--line);}
body .nav-tabs .nav-link{color:var(--muted);font-weight:700;border:none;border-bottom:2px solid transparent;}
body .nav-tabs .nav-link:hover{color:var(--indigo);border-bottom-color:var(--line);}
body .nav-tabs .nav-link.active{color:var(--indigo);background:transparent;border-bottom:2px solid var(--orange);}
body .form-control:focus,body .form-select:focus{border-color:var(--indigo);box-shadow:0 0 0 3px rgba(30,42,94,.12);}
body .page-link{color:var(--indigo);}
body .page-item.active .page-link{background-color:var(--indigo);border-color:var(--indigo);color:#fff;}

/* ---------- Responsive ---------- */
@media(max-width:900px){
    .auth-shell{grid-template-columns:1fr;}
    .auth-brand{padding:30px 28px;}
    .auth-brand h1{font-size:26px;margin:18px 0 10px;}
    .feats,.brand-foot{display:none;}
    .auth-panel{padding:30px 20px;}
}
@media(max-width:992px){
    nav.mainnav{margin-right:0;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 0;display:none;box-shadow:0 12px 24px rgba(20,30,70,.08);z-index:60;}
    nav.mainnav.open{display:flex;}
    nav.mainnav a{padding:12px 32px;width:100%;}
    .navtoggle{display:flex;}
    .headerrow{position:relative;flex-wrap:wrap;}
    .topbar .left span:nth-child(2){display:none;}
    footer.site .fgrid{grid-template-columns:1fr 1fr;}
    .wrap{padding:0 20px;}
    .headerrow{padding:12px 20px;}
    html{scroll-padding-top:116px;} /* ~105px header (12px padding ×2 + 80px logo) + gap */
}

/* ---------- Phones ---------- */
@media(max-width:600px){
    html,body{overflow-x:hidden;}
    img{max-width:100%;height:auto;}
    /* Header: keep it on one line by dropping the tagline + tightening CTAs */
    .logo small{display:none;}
    .logo .logo-img{height:40px;}
    html{scroll-padding-top:78px;} /* ~65px header (12px padding ×2 + 40px logo) + gap */
    .navcta{gap:6px;}
    .navcta .btn{padding:8px 12px;font-size:13px;}
    /* Section / typography scale-down */
    .section{padding:38px 0;}
    h2.h2{font-size:22px;}
    p.lead{font-size:14px;}
    .pagehead{padding:24px 0;}
    .pagehead h1{font-size:23px;}
    .pagehead p{font-size:13.5px;}
    footer.site{padding:34px 0 22px;}
    .btn-lg{padding:12px 18px;font-size:14.5px;}
    .app-main .container{padding-top:20px;padding-bottom:20px;}
    /* Auth + shared forms stack */
    .grid2{grid-template-columns:1fr;}
    .phonegroup{grid-template-columns:120px 1fr;}
    .auth-card.wide{max-width:100%;}
    .auth-panel{padding:26px 18px;}
}
@media(max-width:400px){
    footer.site .fgrid{grid-template-columns:1fr;}
    .phonegroup{grid-template-columns:1fr;}
}