/* ==========================================================================
   akmaurya.com — v2 stylesheet
   High-contrast, bold, full-width academic design.
   Re-skin the whole site from the tokens in :root below.
   ========================================================================== */
:root{
  /* Bold, high-contrast palette */
  --navy:#0b3168;        /* primary */
  --navy-d:#08264f;      /* header / footer */
  --blue:#1a5fb4;        /* bright link/hover accent */
  --ink:#0f141b;         /* headings (near-black) */
  --body:#1d242e;        /* body text (strong) */
  --muted:#465061;       /* secondary text (AA on white & alt) */
  --bg:#ffffff;
  --alt:#eaf0f8;         /* alternate section band */
  --panel:#f4f7fb;
  --line:#cbd6e4;
  --gold:#8a5a00;        /* small emphasis (years) */
  --amber:#c05600;       /* CTA / ongoing accent */
  --amber-bg:#fff3e2;
  --ok:#1c6b3a;
  --ok-bg:#e2f2e8;
  /* Type */
  --head:'Libre Franklin',system-ui,-apple-system,'Segoe UI',sans-serif;
  --body-font:'Source Sans 3',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
  /* Metrics */
  --nav-h:66px;
  --wrap:1680px;
  --pad:clamp(20px,4.5vw,72px);
  --radius:12px;
  --shadow:0 1px 2px rgba(11,49,104,.05),0 8px 26px rgba(11,49,104,.08);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 10px);-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:var(--body-font);font-size:18px;line-height:1.7;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--head);color:var(--ink);line-height:1.15;margin:0;font-weight:800;letter-spacing:-.01em}
a{color:var(--navy);text-decoration:none;font-weight:600;transition:color .15s}
a:hover{color:var(--blue);text-decoration:underline}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:3px}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:12px 18px;border-radius:8px;z-index:1000;font-weight:700}
.skip-link:focus{left:12px}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}
.eyebrow{font-family:var(--head);font-size:15px;letter-spacing:.06em;text-transform:uppercase;color:var(--navy);font-weight:800;margin:0 0 6px}
.muted{color:var(--muted)}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;padding:6px 14px;border-radius:8px;background:#dbe6f5;color:var(--navy);border:1.5px solid #b9cbe6}
.chip.amber{background:var(--amber-bg);color:var(--amber);border-color:#f0c79a}
.chip.ok{background:var(--ok-bg);color:var(--ok);border-color:#b6ddc4}

/* ---------- Navigation (full-width bold bar, no brand mark) ---------- */
.nav{position:sticky;top:0;z-index:100;background:var(--navy-d);border-bottom:3px solid var(--amber)}
.nav-inner{display:flex;align-items:center;min-height:var(--nav-h)}
.nav-links{display:flex;flex-wrap:wrap;gap:2px;width:100%}
.nav-links a{font-family:var(--head);font-size:16px;font-weight:600;color:#eaf1fb;padding:12px 16px;border-radius:6px;letter-spacing:.01em}
.nav-links a:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}
.nav-links a.active{color:#fff;background:rgba(255,255,255,.10);box-shadow:inset 0 -3px 0 var(--amber)}
.nav-toggle{display:none;background:var(--navy);border:1px solid rgba(255,255,255,.3);color:#fff;font-family:var(--head);font-weight:700;font-size:16px;padding:10px 16px;border-radius:8px;cursor:pointer;margin:10px 0}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#eef4fc 0%,#ffffff 100%);border-bottom:1px solid var(--line);padding:44px 0 40px}
.hero-grid{display:grid;grid-template-columns:1fr minmax(300px,360px);gap:48px;align-items:center}
.hero-main{order:1}
.id-card{order:2;text-align:center}
.portrait-wrap{position:relative;display:inline-block}
.portrait{width:100%;max-width:340px;aspect-ratio:1/1;object-fit:cover;border-radius:16px;border:4px solid #fff;box-shadow:0 10px 34px rgba(11,49,104,.22)}
.portrait-wrap::after{content:"";position:absolute;inset:14px -14px -14px 14px;border-radius:16px;background:var(--navy);z-index:-1;opacity:.14}
.id-links{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:20px}
.id-links a{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:700;color:#fff;background:var(--navy);border:none;padding:9px 14px;border-radius:8px}
.id-links a:hover{background:var(--blue);text-decoration:none}
.id-links svg{width:17px;height:17px}
.id-contact{margin-top:14px;font-size:16px;font-weight:600}
.id-contact div{display:flex;gap:8px;align-items:center;justify-content:center}
.id-contact svg{width:17px;height:17px;color:var(--navy)}

.hero-name{font-size:clamp(34px,4.6vw,54px);margin:0 0 6px;color:var(--ink)}
.hero-role{font-size:clamp(19px,2vw,24px);color:var(--navy);font-weight:800;font-family:var(--head)}
.hero-role b{color:var(--navy)}
.hero-affil{font-size:18px;color:var(--body);margin-top:6px;font-weight:600}
.hero-tagline{font-size:19px;color:var(--amber);font-weight:700;margin:16px 0;border-left:5px solid var(--amber);padding-left:16px;font-style:italic}
.hero-summary{font-size:18.5px;margin:0 0 18px;max-width:70ch;color:var(--body)}
.area-tags{display:flex;flex-wrap:wrap;gap:9px}

/* Metrics — bold full-width row */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:34px 0 0}
.metric{background:var(--navy);color:#fff;border-radius:var(--radius);padding:20px 22px;text-align:left}
.metric .v{font-family:var(--head);font-size:40px;font-weight:800;line-height:1;color:#fff}
.metric .l{font-size:16px;color:#fff;font-weight:700;margin-top:8px}
.metric .n{font-size:14px;color:rgba(255,255,255,.85)}

.hero-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}
.mini{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.mini h3{font-family:var(--head);font-size:16px;text-transform:uppercase;letter-spacing:.05em;color:var(--navy);margin-bottom:12px;display:flex;align-items:center;gap:8px;font-weight:800;border-bottom:2px solid var(--line);padding-bottom:10px}
.mini h3 a{margin-left:auto;font-size:14px;text-transform:none;letter-spacing:0}
.mini li{font-size:16px;line-height:1.5;padding:11px 0;border-top:1px solid var(--line);color:var(--body)}
.mini li:first-child{border-top:none}
.mini .yr{font-family:var(--mono);font-size:14px;color:var(--gold);font-weight:700}

.recruit{margin-top:24px;background:var(--navy);color:#fff;border-radius:var(--radius);padding:20px 26px;display:flex;align-items:center;gap:20px;border-left:8px solid var(--amber)}
.recruit .pulse{width:14px;height:14px;border-radius:50%;background:var(--amber);flex:0 0 auto;animation:pulse 2.4s infinite}
.recruit .rt{flex:1}
.recruit strong{display:block;font-family:var(--head);font-size:20px;font-weight:800}
.recruit span{font-size:17px;color:#dbe6f5}
.recruit a{flex:0 0 auto;background:var(--amber);color:#fff;font-weight:800;font-size:17px;padding:12px 22px;border-radius:8px}
.recruit a:hover{background:#a14700;text-decoration:none}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(192,86,0,.6)}70%{box-shadow:0 0 0 14px rgba(192,86,0,0)}100%{box-shadow:0 0 0 0 rgba(192,86,0,0)}}

/* ---------- Sections ---------- */
section{padding:76px 0;scroll-margin-top:var(--nav-h)}
section:nth-of-type(even){background:var(--alt)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(28px,3.6vw,42px);color:var(--navy);position:relative;padding-bottom:14px}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:72px;height:5px;background:var(--amber);border-radius:3px}
.sec-head .sub{font-size:17px;color:var(--muted);margin-top:12px;font-weight:600}
.sec-head .count{font-family:var(--head);font-size:15px;font-weight:700;color:#fff;background:var(--navy);padding:7px 16px;border-radius:8px}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow)}
.card h3{font-size:22px;margin-bottom:16px;color:var(--navy);font-weight:800}

/* About */
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:28px}
.bio p{margin:0 0 16px;font-size:18.5px;color:var(--body)}
.interests{display:flex;flex-wrap:wrap;gap:10px}
.timeline li{position:relative;padding:0 0 18px 24px;border-left:3px solid var(--line);margin-left:6px}
.timeline li::before{content:"";position:absolute;left:-9px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--navy);border:3px solid #fff;box-shadow:0 0 0 1px var(--line)}
.timeline li:last-child{border-left-color:transparent;padding-bottom:0}
.timeline .t{font-weight:700;color:var(--ink);font-size:17.5px}
.timeline .m{font-size:16px;color:var(--muted)}
.timeline .y{font-family:var(--mono);font-size:14px;color:var(--gold);font-weight:700}

/* Publications */
.pub-tabs{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px}
.pub-tab{font-family:var(--head);font-size:15px;font-weight:700;padding:10px 18px;border-radius:8px;border:2px solid var(--navy);background:#fff;color:var(--navy);cursor:pointer;transition:.15s}
.pub-tab:hover{background:#dbe6f5}
.pub-tab.active{background:var(--navy);color:#fff}
.pub-tab .n{font-family:var(--mono);opacity:.85;margin-left:6px;font-size:13px}
.pub-toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin:0 0 18px}
.pub-search{flex:1;min-width:240px;max-width:460px;padding:12px 16px;border:2px solid var(--line);border-radius:9px;font:inherit;font-size:17px;background:#fff;color:var(--ink)}
.pub-search:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px #cddcf0}
.pub-meta{font-size:16px;color:var(--muted);font-weight:600}
.pub-list{display:grid;gap:0}
.pub{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:18px 6px;border-bottom:1.5px solid var(--line);align-items:baseline}
.pub .yr{font-family:var(--mono);font-size:17px;font-weight:700;color:var(--gold)}
.pub .c{font-size:17px;line-height:1.6;color:var(--body)}
.pub .c a{font-family:var(--mono);font-size:14px;margin-left:6px;white-space:nowrap;font-weight:700}
.pub .type{font-family:var(--head);font-size:12.5px;font-weight:800;color:#fff;background:var(--navy);padding:3px 9px;border-radius:6px;white-space:nowrap;margin-right:4px;text-transform:uppercase;letter-spacing:.03em}
.pub-group-label{font-family:var(--head);font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--navy);margin:26px 0 8px;font-weight:800}
.pager{display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;margin-top:30px}
.pager button{min-width:46px;height:46px;padding:0 16px;border:2px solid var(--navy);background:#fff;border-radius:9px;font-family:var(--head);font-size:15px;font-weight:700;color:var(--navy);cursor:pointer;transition:.15s}
.pager button:hover:not(:disabled){background:#dbe6f5}
.pager button.active{background:var(--navy);color:#fff}
.pager button:disabled{opacity:.35;cursor:default;border-color:var(--line);color:var(--muted)}

/* Projects */
.proj{background:#fff;border:1.5px solid var(--line);border-left:6px solid var(--navy);border-radius:10px;padding:20px 24px;box-shadow:var(--shadow)}
.proj.ongoing{border-left-color:var(--amber);background:linear-gradient(100deg,var(--amber-bg) 0%,#fff 55%)}
.proj .top{display:flex;justify-content:space-between;gap:14px;align-items:flex-start;margin-bottom:10px}
.proj h3{font-family:var(--head);font-size:19px;font-weight:800;color:var(--ink);line-height:1.35}
.proj .meta{font-size:16px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap;margin-top:10px;font-weight:600}
.proj .meta b{color:var(--navy);font-weight:800}

/* Students */
.stu-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:32px}
.stu-summary .metric{background:var(--navy)}
.stu-summary .metric .v{font-size:44px}
.stu{padding:16px 0;border-bottom:1.5px solid var(--line);display:grid;grid-template-columns:1fr auto;gap:16px;align-items:baseline}
.stu .nm{font-weight:800;color:var(--ink);font-size:18px;font-family:var(--head)}
.stu .th{font-size:16.5px;color:var(--body);margin-top:3px}
.stu .badge{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--gold);white-space:nowrap}
.subhead{font-family:var(--head);font-size:24px;color:var(--navy);margin:8px 0 16px;font-weight:800}

/* Awards / lists */
.awards li{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:15px 0;border-bottom:1.5px solid var(--line);font-size:17.5px;color:var(--body)}
.awards .y{font-family:var(--mono);font-size:15px;font-weight:700;color:var(--gold)}
.plain-list li{padding:13px 0;border-bottom:1.5px solid var(--line);font-size:17.5px;line-height:1.55;color:var(--body)}
.plain-list li:last-child{border-bottom:none}
.act-list{columns:2;column-gap:48px}
.act-list li{break-inside:avoid;-webkit-column-break-inside:avoid;display:grid;grid-template-columns:58px 1fr;gap:14px;padding:14px 0;border-bottom:1.5px solid var(--line);font-size:16.5px;line-height:1.55;align-items:baseline;color:var(--body)}
.act-list .y{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--gold)}
.tags-wrap{display:flex;flex-wrap:wrap;gap:10px}

/* Gallery — visible captions below images */
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.gal{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius);border:1.5px solid var(--line);cursor:pointer;background:#fff;box-shadow:var(--shadow)}
.gal img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.gal:hover img{transform:scale(1.05)}
.gal figcaption{padding:14px 16px;font-size:16px;font-weight:600;color:var(--body);border-top:1.5px solid var(--line);background:#fff}
.lightbox{position:fixed;inset:0;background:rgba(8,20,40,.94);z-index:1000;display:none;align-items:center;justify-content:center;padding:26px;flex-direction:column;gap:16px}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1100px,92vw);max-height:80vh;border-radius:10px}
.lightbox .cap{color:#fff;font-size:17px;text-align:center;max-width:640px;font-weight:600}
.lightbox button{position:absolute;top:20px;right:24px;background:rgba(255,255,255,.16);color:#fff;border:none;width:48px;height:48px;border-radius:50%;font-size:26px;cursor:pointer}
.lightbox .nav-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.16);color:#fff;border:none;width:54px;height:54px;border-radius:50%;font-size:28px;cursor:pointer}
.lightbox .prev{left:24px}.lightbox .next{right:24px}

/* News */
.news li{display:grid;grid-template-columns:84px 116px 1fr;gap:18px;padding:16px 0;border-bottom:1.5px solid var(--line);align-items:baseline;font-size:17.5px;color:var(--body)}
.news .d{font-family:var(--mono);font-size:15px;color:var(--muted);font-weight:700}
.news .tag{font-size:13px;font-weight:800;color:#fff;background:var(--navy);padding:5px 12px;border-radius:7px;text-align:center;justify-self:start;text-transform:uppercase;letter-spacing:.03em;font-family:var(--head)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.contact-row{display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-bottom:1.5px solid var(--line);font-size:17.5px}
.contact-row svg{width:22px;height:22px;color:var(--navy);flex:0 0 auto;margin-top:3px}
.contact-row .k{font-size:13.5px;color:var(--navy);text-transform:uppercase;letter-spacing:.05em;font-weight:800;font-family:var(--head)}

/* ---------- Footer ---------- */
.footer{background:var(--navy-d);color:#cdddf0;padding:56px 0 30px;font-size:17px}
.footer h4{color:#fff;font-family:var(--head);font-size:16px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:18px;font-weight:800}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px}
.footer a{color:#9ec4f0;font-weight:600}.footer a:hover{color:#fff}
.foot-links{display:flex;flex-wrap:wrap;gap:9px}
.foot-links a{font-size:14.5px;font-weight:700;border:1.5px solid rgba(255,255,255,.24);padding:8px 13px;border-radius:8px;color:#dbe8f7}
.foot-links a:hover{background:rgba(255,255,255,.12);text-decoration:none}
.foot-stat{display:flex;gap:16px;align-items:center;margin-bottom:14px}
.foot-stat .num{font-family:var(--head);font-size:34px;color:#fff;font-weight:800}
.foot-stat .lab{font-size:14px;color:#9fb4cd;font-weight:600}
.country-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.country-list span{font-size:14px;background:rgba(255,255,255,.10);padding:6px 11px;border-radius:7px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:38px;padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:14.5px;color:#9fb4cd}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .hero-grid{grid-template-columns:1fr}
  .hero-main{order:2}.id-card{order:1}
  .portrait{max-width:260px}
  .about-grid{grid-template-columns:1fr}
}
@media (max-width:1000px){
  .nav-toggle{display:inline-flex}
  .nav-links{display:none;flex-direction:column;width:100%;padding:6px 0 12px}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 14px;font-size:17px}
}
@media (max-width:820px){
  .metrics{grid-template-columns:repeat(2,1fr)}
  .grid-2,.grid-3,.hero-cols,.contact-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .act-list{columns:1}
  .stu-summary{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .recruit{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  body{font-size:17px}
  .metrics,.gallery-grid{grid-template-columns:1fr}
  .pub{grid-template-columns:1fr;gap:4px}
  .awards li{grid-template-columns:1fr;gap:3px}
  .news li{grid-template-columns:1fr;gap:5px}
  .stu-summary{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}
@media print{
  .nav,.footer,.recruit,.lightbox{display:none!important}
  section{padding:16px 0;break-inside:avoid}
  body{font-size:12pt;color:#000}
}

/* ====== v3: colourful, clean, spacious additions ====== */
/* About bio now spans full width */
.about-bio{max-width:100%}
.about-bio p{font-size:19px;line-height:1.75;max-width:110ch}

/* Colourful metric / student tiles */
.metrics .metric:nth-child(4n+1),.stu-summary .metric:nth-child(4n+1){background:#0b3168}
.metrics .metric:nth-child(4n+2),.stu-summary .metric:nth-child(4n+2){background:#0d7377}
.metrics .metric:nth-child(4n+3),.stu-summary .metric:nth-child(4n+3){background:#b0471e}
.metrics .metric:nth-child(4n+4),.stu-summary .metric:nth-child(4n+4){background:#1a7a4c}

/* Per-section accent colours (eyebrow + heading underline) */
#about .sec-head h2::after,#activities .sec-head h2::after{background:#0d7377}
#about .eyebrow,#activities .eyebrow{color:#0d7377}
#books .sec-head h2::after,#awards .sec-head h2::after{background:#b0471e}
#books .eyebrow,#awards .eyebrow{color:#b0471e}
#projects .sec-head h2::after,#gallery .sec-head h2::after{background:#1a7a4c}
#projects .eyebrow,#gallery .eyebrow{color:#1a7a4c}
#students .sec-head h2::after,#contact .sec-head h2::after{background:#5b3a9e}
#students .eyebrow,#contact .eyebrow{color:#5b3a9e}

/* Books showcase */
.books-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.book-card{display:flex;flex-direction:column;gap:14px}
.book-cover{border-radius:10px;overflow:hidden;box-shadow:0 12px 32px rgba(11,49,104,.24);border:1px solid var(--line);background:#fff;transition:transform .3s ease,box-shadow .3s ease}
.book-card:hover .book-cover{transform:translateY(-7px);box-shadow:0 20px 44px rgba(11,49,104,.30)}
.book-cover img{width:100%;height:auto;display:block}
.book-noimg{aspect-ratio:2/3;display:flex;align-items:center;justify-content:center;padding:22px;text-align:center;background:var(--navy);color:#fff;font-family:var(--head);font-weight:700;font-size:16px}
.book-card figcaption{display:flex;flex-direction:column;gap:5px}
.book-year{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--amber)}
.book-title{font-family:var(--head);font-size:17px;font-weight:800;color:var(--ink);line-height:1.3}
.book-pub{font-size:15px;color:var(--muted);font-weight:600}
@media (max-width:820px){.books-grid{grid-template-columns:repeat(2,1fr);gap:24px}}