/* ═══════════════════════════════════════════════════════════
   Dr. Kinjal Bhatt — Interventional Cardiologist
   ═══════════════════════════════════════════════════════════ */

:root{
  /* Palette */
  --navy-900:#061a2e;
  --navy-800:#0a2540;
  --navy:#0a2540;
  --navy-600:#1b4067;
  --ink:#12212f;
  --slate-500:#5b6b7c;
  --slate-400:#8496a6;
  --line:#e3eaf1;
  --tint:#f5f8fb;
  --white:#ffffff;

  --teal:#0f9d9a;
  --teal-600:#0c8380;
  --teal-100:#e3f4f3;
  --aqua:#16b9c9;
  --gold:#b9975b;
  --gold-100:#f6f0e4;
  --alert:#c8434b;

  /* Type */
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;

  /* Metrics */
  --wrap:1180px;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(10,37,64,.06), 0 4px 12px rgba(10,37,64,.05);
  --shadow-md:0 2px 6px rgba(10,37,64,.06), 0 18px 44px -12px rgba(10,37,64,.18);
  --ease:cubic-bezier(.22,.75,.28,1);
}

/* ── Reset ─────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.68;
  color:var(--ink);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;font-weight:400;letter-spacing:-.02em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
::selection{background:var(--navy);color:#fff}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  padding:.8rem 1.2rem;background:var(--navy);color:#fff;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}

.wrap{width:min(100% - 3rem, var(--wrap));margin-inline:auto}
.ico{width:15px;height:15px;flex:none;stroke-width:1.8}

/* ── Type primitives ───────────────────────────────────── */
.eyebrow{
  font-size:.72rem;font-weight:600;letter-spacing:.19em;text-transform:uppercase;
  color:var(--teal-600);margin:0 0 .9rem;
}
.h2{
  font-family:var(--serif);
  font-size:clamp(1.9rem,3.6vw,2.85rem);
  line-height:1.16;font-weight:400;color:var(--navy);
}
.lead{font-size:1.09rem;color:var(--slate-500)}
.section__sub{margin-top:1rem;max-width:56ch;color:var(--slate-500)}

/* ── Buttons ───────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  padding:.92rem 1.7rem;border-radius:100px;
  background:var(--navy);color:#fff;
  font-size:.92rem;font-weight:600;letter-spacing:.01em;
  border:1px solid var(--navy);
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .25s;
  box-shadow:0 10px 24px -12px rgba(10,37,64,.7);
}
.btn:hover{background:var(--navy-600);border-color:var(--navy-600);transform:translateY(-2px);box-shadow:0 16px 32px -14px rgba(10,37,64,.75)}
.btn--ghost{background:transparent;color:var(--navy);border-color:var(--line);box-shadow:none}
.btn--ghost:hover{background:var(--white);border-color:var(--navy);color:var(--navy);box-shadow:var(--shadow-sm)}
.btn--sm{padding:.6rem 1.15rem;font-size:.83rem}

/* ── Utility bar ───────────────────────────────────────── */
.utility{background:var(--navy-900);color:rgba(255,255,255,.72);font-size:.79rem}
.utility__inner{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;min-height:40px;flex-wrap:wrap}
.utility__item{display:inline-flex;align-items:center;gap:.45rem;padding:.35rem 0;transition:color .2s}
.utility__item:hover{color:#fff}
.utility__right{display:flex;gap:1.6rem}
.utility__item--alert{color:#f0a6aa}
.utility__item--alert:hover{color:#ffd4d6}

/* ── Header ────────────────────────────────────────────── */
.header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s, box-shadow .3s;
}
.header.is-stuck{border-bottom-color:var(--line);box-shadow:0 6px 24px -18px rgba(10,37,64,.6)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;min-height:74px}

.brand{display:flex;align-items:center;gap:.8rem}
.brand__mark{
  width:42px;height:42px;flex:none;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--navy) 0%,var(--navy-600) 55%,var(--teal) 130%);
  color:#fff;font-family:var(--serif);font-size:1.02rem;letter-spacing:.03em;
}
.brand__text{display:flex;flex-direction:column;line-height:1.25}
.brand__text strong{font-family:var(--serif);font-weight:500;font-size:1.09rem;color:var(--navy);letter-spacing:-.01em}
.brand__text em{font-style:normal;font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;color:var(--slate-400);white-space:nowrap}

.nav{display:flex;align-items:center;gap:2rem}
.nav>a:not(.btn){
  font-size:.9rem;font-weight:500;color:var(--slate-500);
  position:relative;padding:.3rem 0;transition:color .22s;
}
.nav>a:not(.btn)::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1.5px;
  background:var(--teal);transition:right .3s var(--ease);
}
.nav>a:not(.btn):hover,.nav>a.is-active{color:var(--navy)}
.nav>a:not(.btn):hover::after,.nav>a.is-active::after{right:0}
.nav__cta{margin-left:.3rem}

.burger{display:none;width:44px;height:44px;position:relative;margin-right:-10px}
.burger span{
  position:absolute;left:12px;width:20px;height:1.6px;background:var(--navy);border-radius:2px;
  transition:transform .3s var(--ease), opacity .2s;
}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:21.5px}
.burger span:nth-child(3){top:27px}
.burger.is-open span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ── Hero ──────────────────────────────────────────────── */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,var(--tint) 100%)}
.hero__glow{
  position:absolute;inset:-30% -10% auto auto;width:760px;height:760px;
  background:radial-gradient(circle at 60% 40%, rgba(15,157,154,.16), rgba(15,157,154,0) 62%);
  pointer-events:none;
}
.hero__inner{
  display:grid;grid-template-columns:1.08fr .92fr;gap:4rem;align-items:center;
  padding:5.5rem 0 6rem;position:relative;
}
.hero__name{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(2.5rem,6.2vw,4.6rem);line-height:1.02;letter-spacing:-.035em;
  text-wrap:balance;
  color:var(--navy);margin:0 0 .55rem;
}
.hero__role{
  font-size:1.06rem;color:var(--slate-500);margin:0 0 1.4rem;
  font-weight:500;letter-spacing:.005em;
}
.fellowships{display:flex;gap:.5rem;flex-wrap:wrap;margin:0 0 1.8rem}
.fellowships li{
  font-size:.73rem;font-weight:600;letter-spacing:.13em;
  padding:.4rem .85rem;border-radius:100px;
  background:var(--gold-100);color:#8a6f38;border:1px solid rgba(185,151,91,.28);
}
.hero__lede{font-size:1.1rem;color:var(--slate-500);max-width:46ch;margin-bottom:2.2rem}
.hero__actions{display:flex;gap:.8rem;flex-wrap:wrap}

.hero__portrait{position:relative;justify-self:center;width:100%;max-width:470px}
.portrait{position:relative;display:flex;justify-content:center;align-items:flex-end}
/* soft light halo behind the figure — keeps the background white while adding depth */
.portrait::before{
  content:"";position:absolute;left:50%;top:6%;transform:translateX(-50%);
  width:94%;aspect-ratio:1;border-radius:50%;z-index:0;
  background:radial-gradient(circle at 50% 42%, var(--teal-100) 0%, rgba(227,244,243,0) 68%);
}
.portrait img{
  width:100%;height:auto;display:block;position:relative;z-index:1;
  filter:drop-shadow(0 26px 38px rgba(10,37,64,.22));
  -webkit-mask-image:linear-gradient(to bottom,#000 92%,transparent 100%);
  mask-image:linear-gradient(to bottom,#000 92%,transparent 100%);
}
.portrait__badge{
  position:absolute;right:-6px;bottom:44px;z-index:3;
  background:#fff;border-radius:16px;padding:1rem 1.25rem;
  display:flex;align-items:center;gap:.75rem;
  box-shadow:var(--shadow-md);border:1px solid var(--line);
}
.portrait__badge strong{
  font-family:var(--serif);font-size:2.1rem;line-height:1;color:var(--navy);font-weight:400;
}
.portrait__badge strong span{color:var(--teal)}
.portrait__badge em{font-style:normal;font-size:.72rem;line-height:1.35;letter-spacing:.09em;text-transform:uppercase;color:var(--slate-400)}

/* ── Stats strip ───────────────────────────────────────── */
.stats{background:var(--navy);color:#fff}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.1)}
.stat{background:var(--navy);padding:2.4rem 1.6rem;text-align:center}
.stat strong{
  display:block;font-family:var(--serif);font-weight:400;
  font-size:2.3rem;line-height:1.1;letter-spacing:-.02em;
  background:linear-gradient(100deg,#fff 20%,#7fdad6 120%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat strong sup{font-size:.5em;top:-.7em;position:relative}
.stat span{display:block;margin-top:.5rem;font-size:.83rem;color:rgba(255,255,255,.6);letter-spacing:.02em}

/* ── Sections ──────────────────────────────────────────── */
.section{padding:6.5rem 0}
.section--tint{background:var(--tint)}
.section--dark{background:var(--navy-900);color:rgba(255,255,255,.75)}
.section__head{max-width:64ch;margin-bottom:3.4rem}
.section__head--light .h2{color:#fff}
.section__head--light .eyebrow{color:var(--aqua)}
.section__head--light .section__sub{color:rgba(255,255,255,.62)}

/* ── About ─────────────────────────────────────────────── */
.about{display:grid;grid-template-columns:.85fr 1.15fr;gap:4.5rem}
.about__intro{position:sticky;top:120px;align-self:start}
.about__body p{color:var(--slate-500)}
.credentials{
  margin-top:2.6rem;display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.cred{display:grid;grid-template-columns:96px 1fr;gap:1.2rem;padding:1.15rem 1.4rem;background:#fff;align-items:center}
.cred__k{font-family:var(--serif);font-size:1.15rem;color:var(--teal-600);letter-spacing:.01em}
.cred__v{font-size:.93rem;color:var(--ink);line-height:1.5}
.cred__v small{color:var(--slate-400);font-size:.83rem}

/* ── Cards ─────────────────────────────────────────────── */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:2.1rem 1.9rem 2rem;position:relative;overflow:hidden;
  transition:transform .38s var(--ease), box-shadow .38s var(--ease), border-color .3s;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--teal),var(--aqua));
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card__ico{
  width:34px;height:34px;color:var(--teal);margin-bottom:1.3rem;
  stroke-width:1.5;display:block;
}
.card h3{font-family:var(--serif);font-size:1.24rem;font-weight:500;color:var(--navy);margin-bottom:.65rem;line-height:1.3}
.card p{font-size:.95rem;color:var(--slate-500);margin:0}

/* ── Procedures ────────────────────────────────────────── */
.proc{display:grid;grid-template-columns:repeat(3,1fr);gap:3rem}
.proc__title{
  font-family:var(--serif);font-size:1.35rem;font-weight:500;color:var(--navy);
  padding-bottom:.9rem;margin-bottom:1.4rem;border-bottom:1px solid var(--line);
}
.ticks li{
  position:relative;padding-left:1.9rem;margin-bottom:.95rem;
  font-size:.96rem;color:var(--slate-500);line-height:1.55;
}
.ticks li::before{
  content:"";position:absolute;left:0;top:.42em;width:11px;height:6px;
  border-left:1.8px solid var(--teal);border-bottom:1.8px solid var(--teal);
  transform:rotate(-45deg);
}

/* ── Research ──────────────────────────────────────────── */
.papers{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.paper{
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
  padding:1.9rem 1.8rem;background:rgba(255,255,255,.03);
  transition:background .3s, border-color .3s, transform .38s var(--ease);
}
.paper:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.22);transform:translateY(-4px)}
.paper__tag{
  display:inline-block;font-size:.68rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;
  color:var(--aqua);margin-bottom:1rem;
}
.paper h3{font-family:var(--serif);font-size:1.1rem;font-weight:400;line-height:1.45;color:rgba(255,255,255,.92)}

/* ── Beyond ────────────────────────────────────────────── */
.beyond{display:grid;grid-template-columns:1fr 1fr;gap:4.5rem;align-items:center}
.beyond__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}
.bstat{
  border:1px solid var(--line);border-radius:12px;padding:1.5rem 1.1rem;text-align:center;
  background:var(--tint);transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.bstat:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.bstat strong{
  display:block;font-family:var(--serif);font-size:1.85rem;font-weight:400;
  color:var(--navy);line-height:1;letter-spacing:-.02em;
}
.bstat strong em{font-style:normal;font-size:.48em;color:var(--slate-400);margin-left:.1em}
.bstat span{display:block;margin-top:.5rem;font-size:.76rem;color:var(--slate-400);letter-spacing:.04em}
.bstat--accent{background:linear-gradient(150deg,var(--navy),var(--navy-600));border-color:transparent}
.bstat--accent strong{color:#fff}
.bstat--accent span{color:rgba(255,255,255,.6)}

/* ── Contact ───────────────────────────────────────────── */
.contact{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin-bottom:3.5rem}
.ccard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.9rem 1.6rem;display:flex;flex-direction:column;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease), border-color .3s;
}
.ccard:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}
.ccard__ico{width:26px;height:26px;color:var(--teal);margin-bottom:1.2rem;stroke-width:1.6}
.ccard__label{font-size:.72rem;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--slate-400)}
.ccard__value{font-family:var(--serif);font-size:1.42rem;font-weight:400;color:var(--navy);margin:.35rem 0 .5rem;letter-spacing:-.01em}
.ccard__value--sm{font-size:1.02rem;word-break:break-all}
.ccard__note{font-size:.82rem;color:var(--slate-400);margin-top:auto}
.ccard--alert .ccard__ico{color:var(--alert)}
.ccard--alert .ccard__value{color:var(--alert)}

.location{
  display:grid;grid-template-columns:1fr 1fr;gap:0;overflow:hidden;
  border-radius:var(--radius);border:1px solid var(--line);background:#fff;
}
.location__text{padding:3rem}
.location__text h3{font-family:var(--serif);font-size:1.6rem;font-weight:500;color:var(--navy);margin-bottom:1rem}
.location__text p{color:var(--slate-500);font-size:.98rem}
.location__meta{font-size:.78rem !important;letter-spacing:.13em;text-transform:uppercase;color:var(--slate-400) !important;margin-bottom:1.8rem !important}
.location__map{background:linear-gradient(150deg,var(--navy) 0%,var(--navy-600) 100%);color:#7fdad6;min-height:290px;position:relative}
.location__map svg{position:absolute;inset:0;width:100%;height:100%}
.map__pin{fill:#7fdad6}
.map__ping{fill:none;stroke:#7fdad6;stroke-width:1.5;transform-origin:center;animation:ping 2.6s var(--ease) infinite}
@keyframes ping{
  0%{transform:scale(.4);opacity:.9}
  70%,100%{transform:scale(2.1);opacity:0}
}

/* ── Footer ────────────────────────────────────────────── */
.footer{background:var(--navy-900);color:rgba(255,255,255,.6);padding:4.5rem 0 2rem;font-size:.9rem}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:3rem;padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand{display:flex;gap:1rem;align-items:flex-start}
.footer__brand strong{font-family:var(--serif);font-size:1.15rem;font-weight:500;color:#fff;display:block;margin-bottom:.4rem}
.footer__brand p{font-size:.86rem;line-height:1.6;margin:0}
.footer__nav,.footer__contact{display:flex;flex-direction:column;gap:.65rem}
.footer__nav a,.footer__contact a{transition:color .2s;width:fit-content}
.footer__nav a:hover,.footer__contact a:hover{color:#fff}
.footer__base{display:flex;justify-content:space-between;gap:2rem;padding-top:1.8rem;font-size:.78rem;color:rgba(255,255,255,.42);flex-wrap:wrap}
.footer__base p{margin:0}
.footer__disclaimer{max-width:52ch;text-align:right}

/* ── Reveal animation ──────────────────────────────────── */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.40s}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width:1020px){
  .hero__inner{grid-template-columns:1fr;gap:3.5rem;padding:4rem 0 4.5rem}
  .hero__portrait{order:-1;max-width:360px;justify-self:start}
  .portrait__badge{right:-6px;bottom:40px}
  .about{grid-template-columns:1fr;gap:2.5rem}
  .about__intro{position:static}
  .cards,.papers{grid-template-columns:repeat(2,1fr)}
  .proc{grid-template-columns:1fr;gap:2.4rem}
  .contact{grid-template-columns:repeat(2,1fr)}
  .beyond{grid-template-columns:1fr;gap:2.8rem}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .footer__inner{grid-template-columns:1fr 1fr;gap:2.5rem}
  .footer__brand{grid-column:1 / -1}
}

@media (max-width:860px){
  .header__inner{position:relative}
  .nav{
    position:absolute;top:100%;left:calc(50% - 50vw);right:calc(50% - 50vw);background:#fff;
    flex-direction:column;align-items:stretch;gap:0;
    padding:1rem 1.5rem 1.8rem;border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px -28px rgba(10,37,64,.5);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .28s var(--ease), transform .28s var(--ease);
  }
  .nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav>a:not(.btn){padding:.95rem 0;border-bottom:1px solid var(--line);font-size:1rem}
  .nav>a:not(.btn)::after{display:none}
  .nav__cta{margin:1.2rem 0 0;justify-content:center}
  .burger{display:block}
  .utility__inner{justify-content:center}
  .utility__item:first-child{display:none}
  .location{grid-template-columns:1fr}
  .location__map{min-height:220px;order:-1}
}

@media (max-width:640px){
  body{font-size:16px}
  .wrap{width:min(100% - 2.2rem, var(--wrap))}
  .section{padding:4.5rem 0}
  .brand__text em{font-size:.62rem;letter-spacing:.1em}
  .hero__inner{padding:3rem 0 3.5rem}
  .hero__portrait{max-width:300px;justify-self:center}
  .portrait__badge{right:-4px;bottom:34px;padding:.8rem 1rem}
  .portrait__badge strong{font-size:1.7rem}
  .cards,.papers,.contact{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:1fr}
  .stat{padding:1.8rem 1rem}
  .beyond__stats{grid-template-columns:repeat(2,1fr)}
  .cred{grid-template-columns:70px 1fr;gap:.9rem;padding:1rem}
  .location__text{padding:2rem 1.6rem}
  .footer__inner{grid-template-columns:1fr}
  .footer__base{flex-direction:column;gap:.6rem}
  .footer__disclaimer{text-align:left}
  .utility__right{gap:1rem}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}

@media print{
  .header,.utility,.burger,.hero__actions,.footer__nav{display:none}
  body{font-size:11pt;color:#000}
  .section{padding:1.5rem 0;page-break-inside:avoid}
  .section--dark,.stats{background:#fff !important;color:#000 !important}
  .paper h3,.stat strong{color:#000 !important;-webkit-text-fill-color:#000}
}