/* ==========================================================
   blinkitambulance.in — domain acquisition presentation
   Core design system: tokens, reset, type, buttons, chrome.

   PALETTE (measured — see README):
     ink on yellow ......... 13.10:1  AAA
     deep green on yellow ... 5.66:1  AA
     white on yellow ........ 1.43:1  FAIL  <- never
     white on deep green .... 8.09:1  AAA
     yellow on ink ......... 13.10:1  AAA
   Yellow always carries ink or deep green. Never white.
   ========================================================== */

:root{
  /* emergency-services palette */
  --yellow:#FFD426;
  --yellow-dk:#E0B400;
  --yellow-lt:#FFE469;
  --yellow-tint:#FFF7D6;
  --green:#0A5C36;
  --green-mid:#0F7A48;
  --green-tint:#E8F3ED;

  --ink:#0B1220;
  --ink-2:#1B2536;
  --slate:#5A6472;
  --slate-2:#7A8494;
  --line:#E4E8EF;
  --line-2:#EFF2F6;
  --white:#FFFFFF;
  --paper:#FAFAF7;

  --radius:20px;
  --radius-sm:12px;
  --radius-lg:28px;

  --shadow-sm:0 1px 2px rgba(11,18,32,.05), 0 1px 3px rgba(11,18,32,.04);
  --shadow-md:0 12px 34px -14px rgba(11,18,32,.20), 0 2px 6px rgba(11,18,32,.05);
  --shadow-lg:0 34px 70px -28px rgba(11,18,32,.34), 0 4px 14px rgba(11,18,32,.07);
  --shadow-green:0 18px 40px -20px rgba(10,92,54,.55);

  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --display:'Plus Jakarta Sans', var(--sans);
  --mono:'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth; scroll-padding-top:96px}
body{
  margin:0; background:var(--white); color:var(--ink);
  font-family:var(--sans); font-size:16.5px; line-height:1.62;
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg{max-width:100%}
a{color:inherit}
h1,h2,h3,h4{font-family:var(--display); line-height:1.1; letter-spacing:-.03em; margin:0}
p{margin:0}
ul,ol{margin:0; padding:0; list-style:none}
button{font:inherit; color:inherit}

.wrap{width:100%; max-width:var(--wrap); margin:0 auto; padding:0 26px}
.wrap-narrow{max-width:880px}

.skip-link{position:absolute; left:-9999px; top:0; z-index:200; background:var(--ink); color:#fff; padding:12px 18px}
.skip-link:focus{left:0}
:focus-visible{outline:3px solid var(--green); outline-offset:3px; border-radius:6px}

.scroll-progress{
  position:fixed; top:0; left:0; height:3px; width:100%; z-index:120;
  transform:scaleX(0); transform-origin:0 50%;
  background:linear-gradient(90deg,var(--green),var(--yellow));
}

/* ---------------- buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:16px 28px; border-radius:999px; border:2px solid transparent;
  font-family:var(--display); font-weight:800; font-size:15px; letter-spacing:-.01em;
  text-decoration:none; cursor:pointer; white-space:nowrap;
  transition:transform .24s var(--ease), box-shadow .24s var(--ease),
             background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:11px 20px; font-size:14px}
.btn-lg{padding:19px 34px; font-size:16.5px}
.btn-block{width:100%}
.btn svg{width:17px; height:17px; fill:none; stroke:currentColor; stroke-width:2.2; stroke-linecap:round; stroke-linejoin:round}

/* deep green is the primary action — reads as "medical", high contrast on yellow */
.btn-primary{background:var(--green); color:#fff; box-shadow:var(--shadow-green)}
.btn-primary:hover{background:#084A2B; box-shadow:0 24px 48px -22px rgba(10,92,54,.75)}

.btn-ink{background:var(--ink); color:#fff}
.btn-ink:hover{background:var(--ink-2)}

/* on dark grounds only — yellow never carries white text */
.btn-yellow{background:var(--yellow); color:var(--ink); box-shadow:0 18px 40px -20px rgba(224,180,0,.9)}
.btn-yellow:hover{background:#FFC800}

.btn-outline{background:transparent; color:var(--ink); border-color:rgba(11,18,32,.22)}
.btn-outline:hover{border-color:var(--ink); background:rgba(11,18,32,.05)}

.btn-outline-light{background:transparent; color:#fff; border-color:rgba(255,255,255,.35)}
.btn-outline-light:hover{border-color:#fff; background:rgba(255,255,255,.10)}

/* ---------------- header ---------------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(16px); -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.site-header.is-stuck{border-bottom-color:var(--line); box-shadow:0 2px 24px rgba(11,18,32,.06)}
.header-inner{display:flex; align-items:center; gap:22px; height:76px}

.brand{display:flex; align-items:center; gap:11px; text-decoration:none; flex:0 0 auto}
.brand-mark{
  width:36px; height:36px; border-radius:11px; display:grid; place-items:center; flex:0 0 auto;
  background:var(--green); color:var(--yellow);
  box-shadow:0 8px 18px -10px rgba(10,92,54,.9);
}
.brand-mark svg{width:19px; height:19px}
.brand-text{font-family:var(--display); font-weight:800; font-size:16.5px; letter-spacing:-.035em}
.brand-tld{color:var(--green)}

.nav{display:flex; align-items:center; gap:28px; margin-left:auto}
.nav a{position:relative; text-decoration:none; font-size:14.5px; font-weight:600; color:var(--slate); transition:color .18s ease}
.nav a::after{
  content:''; position:absolute; left:0; right:0; bottom:-7px; height:2.5px; border-radius:2px;
  background:var(--green); transform:scaleX(0); transform-origin:0 50%; transition:transform .3s var(--ease);
}
.nav a:hover,.nav a.is-active{color:var(--ink)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}
.nav .nav-cta{display:none}
.header-cta{margin-left:24px}

.nav-toggle{
  display:none; margin-left:auto; width:44px; height:44px; padding:0; cursor:pointer;
  border:2px solid var(--line); background:#fff; border-radius:13px;
}
.nav-toggle span{display:block; width:18px; height:2px; background:var(--ink); margin:4px auto; border-radius:2px; transition:transform .3s var(--ease), opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------------- sections ---------------- */
.section{padding:104px 0}
.section-paper{background:var(--paper)}
.section-green{background:var(--green); color:#fff}
.section-ink{background:var(--ink); color:#fff}

.sec-head{max-width:720px; margin-bottom:56px}
.sec-head.center{margin-left:auto; margin-right:auto; text-align:center}
.sec-tag{
  display:inline-flex; align-items:center; gap:8px; margin-bottom:18px;
  padding:7px 15px; border-radius:999px; background:var(--green-tint); color:var(--green);
  font-family:var(--display); font-size:12px; font-weight:800; letter-spacing:.1em; text-transform:uppercase;
}
.section-green .sec-tag,.section-ink .sec-tag{background:rgba(255,212,38,.16); color:var(--yellow)}
.sec-head h2{font-size:clamp(30px,4.4vw,50px); font-weight:800}
.sec-head p{margin-top:18px; color:var(--slate); font-size:17.5px; line-height:1.6}
.section-green .sec-head p,.section-ink .sec-head p{color:rgba(255,255,255,.72)}
.section-green .sec-head h2,.section-ink .sec-head h2{color:#fff}

/* ---------------- footer ---------------- */
.site-footer{background:var(--ink); color:#8E99AB; padding:0 0 36px; font-size:14.5px}
.foot-top{display:grid; grid-template-columns:minmax(0,1.2fr) minmax(0,1.3fr); gap:52px; padding:64px 0 40px}
.foot-brand .brand-text{color:#fff; font-size:20px; display:block; margin-bottom:14px}
.foot-brand .brand-tld{color:var(--yellow)}
.foot-brand p{max-width:42ch; line-height:1.65}
.foot-nav{display:grid; grid-template-columns:repeat(3,1fr); gap:26px}
.foot-h{color:#fff; font-family:var(--display); font-weight:800; font-size:12.5px; letter-spacing:.09em; text-transform:uppercase; margin-bottom:14px}
.foot-nav a{display:block; text-decoration:none; margin-bottom:9px; transition:color .18s ease; word-break:break-word}
.foot-nav a:hover{color:var(--yellow)}

.emergency-note{
  background:rgba(255,212,38,.10); border:1px solid rgba(255,212,38,.30);
  border-radius:var(--radius-sm); padding:16px 20px; color:#E2E7EF; font-size:14.5px;
}
.emergency-note strong{color:var(--yellow)}

.foot-bottom{margin-top:30px; padding-top:26px; border-top:1px solid rgba(255,255,255,.09)}
.foot-bottom p{font-size:13px}
.disclaimer{margin-top:14px !important; color:#6B7688; line-height:1.65; font-size:12.5px !important}
.disclaimer strong{color:#9AA5B6}
.disclaimer a{color:#9AA5B6}

/* ---------------- mobile action bar ---------------- */
.mobile-bar{
  display:none; position:fixed; left:0; right:0; bottom:0; z-index:95; gap:10px;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.93); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px);
  border-top:1px solid var(--line); transform:translateY(115%); transition:transform .35s var(--ease);
}
.mobile-bar.is-visible{transform:translateY(0)}

/* ---------------- toast ---------------- */
.toast{
  position:fixed; left:50%; bottom:36px; z-index:140; transform:translate(-50%,20px);
  opacity:0; pointer-events:none; background:var(--ink); color:#fff;
  padding:13px 22px; border-radius:999px; font-size:14.5px; font-weight:600;
  box-shadow:var(--shadow-lg); transition:opacity .25s ease, transform .3s var(--ease);
}
.toast.is-visible{opacity:1; transform:translate(-50%,0)}

/* ---------------- reveal ---------------- */
.reveal{opacity:0; transform:translateY(26px); transition:opacity .8s var(--ease-out), transform .8s var(--ease-out)}
.reveal.is-in{opacity:1; transform:none}
.reveal[data-delay="1"]{transition-delay:.07s}
.reveal[data-delay="2"]{transition-delay:.14s}
.reveal[data-delay="3"]{transition-delay:.21s}
.reveal[data-delay="4"]{transition-delay:.28s}
.reveal[data-delay="5"]{transition-delay:.35s}
.reveal[data-delay="6"]{transition-delay:.42s}
.reveal[data-delay="7"]{transition-delay:.49s}

/* ---------------- responsive ---------------- */
@media (max-width:1040px){
  .nav{gap:20px}
  .nav a{font-size:14px}
}
@media (max-width:960px){
  html{scroll-padding-top:80px}
  .header-cta{display:none}
  .nav-toggle{display:block}
  .nav{
    position:fixed; inset:68px 0 auto 0; flex-direction:column; align-items:stretch; gap:0;
    background:#fff; border-bottom:1px solid var(--line); padding:10px 26px 24px;
    box-shadow:0 26px 44px -26px rgba(11,18,32,.32);
    clip-path:inset(0 0 100% 0); opacity:0; pointer-events:none;
    transition:clip-path .42s var(--ease), opacity .25s ease;
  }
  .nav.is-open{clip-path:inset(0 0 0 0); opacity:1; pointer-events:auto}
  .nav a{padding:15px 0; font-size:16.5px; border-bottom:1px solid var(--line-2); color:var(--ink)}
  .nav a::after{display:none}
  .nav .nav-cta{
    display:block; margin-top:18px; border:0; text-align:center;
    background:var(--green); color:#fff; border-radius:999px; padding:15px 20px;
  }
  .foot-top{grid-template-columns:1fr; gap:36px}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:100px}
  .toast{bottom:100px}
}
@media (max-width:760px){
  body{font-size:16px}
  .section{padding:74px 0}
  .sec-head{margin-bottom:40px}
  .foot-nav{grid-template-columns:1fr 1fr}
}
@media (max-width:540px){
  .wrap{padding:0 18px}
  .btn{padding:15px 24px}
  .btn-lg{padding:17px 26px; font-size:15.5px}
  .foot-nav{grid-template-columns:1fr}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important}
  .reveal{opacity:1; transform:none}
}

@media print{
  .site-header,.mobile-bar,.scroll-progress,.toast{display:none !important}
  body{font-size:11pt}
  .reveal{opacity:1 !important; transform:none !important}
  .section{padding:18px 0; page-break-inside:avoid}
}