/* ============================================================
   Mujtaba Ayub site stylesheet
   Single source of truth. Every colour, size and breakpoint
   is declared once here. No per-page overrides.
   ============================================================ */

:root{
  /* surfaces */
  --page:#FFFFFF;
  --band:#F4F6F9;

  /* navy family: three steps, deep to light */
  --navy-deep:#0C2C4C;   /* masthead, footer */
  --navy-step:#1D4C7C;   /* org band */
  --navy:#16406B;        /* accent: links, labels, data */

  /* ink */
  --ink:#0F141B;
  --muted:#5B6675;

  /* rules */
  --line:#E2E6EC;
  --line-strong:#C9D1DB;

  /* on-navy text */
  --on-navy:#C3D2E2;
  --on-navy-dim:#7E9DBE;
  --rule-navy:rgba(255,255,255,.16);

  /* type */
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;

  /* scale */
  --wrap:1140px;
  --pad:40px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--page);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  display:flex;flex-direction:column;min-height:100vh;
}
main{flex:1 0 auto}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);width:100%}
@media(max-width:640px){:root{--pad:20px}}

.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;z-index:50}
.skip:focus{left:0}
a:focus-visible,button:focus-visible{outline:2px solid var(--navy);outline-offset:3px}
.mast a:focus-visible,.foot a:focus-visible{outline-color:#fff}
.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto}}

/* ============ masthead ============ */
.mast{background:var(--navy-deep);color:#fff}
.mast-top{display:flex;align-items:flex-start;justify-content:space-between;gap:30px;padding:34px 0 0}
.mast.compact .mast-top{padding:26px 0 26px}
.nm{font-family:var(--serif);font-size:22px;font-weight:600;letter-spacing:-.012em;line-height:1;margin:0 0 7px;color:#fff}
.desc{font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;margin:0;display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--on-navy-dim)}
.desc .bar{display:inline-block;width:1px;height:11px;background:var(--on-navy-dim);opacity:.5}
.nav{display:flex;gap:28px;padding-top:6px;font-size:14px}
.nav a{color:var(--on-navy);padding-bottom:3px;border-bottom:1.5px solid transparent;transition:color .15s,border-color .15s}
.nav a:hover,.nav a[aria-current]{color:#fff;border-bottom-color:#fff}

.hero{padding:74px 0 66px}
.hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(2rem,1.15rem + 2.6vw,3.1rem);line-height:1.14;letter-spacing:-.021em;margin:0 0 24px;max-width:15.5em;color:#fff}
.hero p{font-size:17.5px;line-height:1.62;margin:0;max-width:42em;color:var(--on-navy)}

@media(max-width:700px){
  .mast-top{flex-direction:column;gap:18px;padding-top:26px}
  .mast.compact .mast-top{padding-bottom:22px}
  .nav{gap:20px;font-size:13.5px;padding-top:0}
  .desc{font-size:9.5px;letter-spacing:.1em;gap:8px}
  .hero{padding:44px 0 40px}
  .hero p{font-size:16px}
}

/* ============ org band ============ */
.orgband{background:var(--navy-step)}
.orgrow{display:flex;flex-wrap:wrap;align-items:center}
.orgrow .lbl{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#AEC8DF;padding-right:28px;white-space:nowrap}
.orgrow .os{display:flex;flex-wrap:wrap;flex:1}
.orgrow .os span{font-size:14px;font-weight:500;color:#fff;padding:19px 22px;flex:1;text-align:center;white-space:nowrap;border-left:1px solid rgba(255,255,255,.19)}
@media(max-width:820px){
  .orgrow .lbl{width:100%;padding:14px 0 2px}
  .orgrow .os span{flex:1 0 33.333%;text-align:left;padding:8px 10px 8px 0;font-size:13px;border-left:0}
}

/* ============ section heads ============ */
.sechead{display:flex;align-items:baseline;justify-content:space-between;gap:20px;border-bottom:2px solid var(--ink);padding-bottom:11px}
.sechead h2{font-size:15px;font-weight:600;letter-spacing:.02em;margin:0}
.sechead a{font-family:var(--mono);font-size:12px;color:var(--navy)}
.sechead a:hover{text-decoration:underline;text-underline-offset:3px}
.eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin:0 0 18px}

/* ============ exhibit register ============ */
.work{padding:60px 0 0}
.ex{display:grid;grid-template-columns:44px 168px minmax(0,1fr) 152px;gap:28px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line);transition:background .15s ease}
.ex:hover{background:var(--band)}
.ex-n{font-family:var(--mono);font-size:12px;color:var(--line-strong);align-self:start;padding-top:4px;transition:color .15s}
.ex:hover .ex-n{color:var(--navy)}
.plate{border:1px solid var(--line);line-height:0;background:#fff}
.plate svg{display:block;width:100%;height:auto}
.cap{font-family:var(--mono);font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--navy);margin:0 0 6px}
.ttl{font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.28;letter-spacing:-.012em;margin:0 0 6px}
.ex:hover .ttl{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.res{font-size:14px;color:var(--muted);margin:0;line-height:1.5}
.org{font-size:13.5px;color:var(--muted);text-align:right;align-self:start;padding-top:2px}
@media(max-width:860px){
  .ex{grid-template-columns:120px minmax(0,1fr);gap:18px;align-items:start}
  .ex-n{display:none}
  .org{grid-column:2;text-align:left;padding-top:8px;font-size:12.5px}
}
@media(max-width:520px){
  .ex{grid-template-columns:1fr;gap:12px}
  .plate{max-width:200px}
  .org{grid-column:1}
}
.allcases{padding:26px 0 0;font-size:14px;margin:0}
.allcases a{color:var(--navy);font-weight:500;border-bottom:1px solid var(--line-strong);padding-bottom:2px}
.allcases a:hover{border-bottom-color:var(--navy)}

/* ============ page head (interior) ============ */
.pagehead{padding:52px 0 0}
.pagehead h1{font-family:var(--serif);font-size:clamp(1.85rem,1.2rem + 1.9vw,2.5rem);font-weight:600;line-height:1.16;letter-spacing:-.02em;margin:0 0 18px;max-width:17em}
.pagehead .standfirst{font-size:17px;color:var(--muted);margin:0;max-width:40em;line-height:1.6}

/* ============ filters ============ */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:34px 0 0;padding:0 0 26px;border-bottom:2px solid var(--ink)}
.filters button{font-family:var(--sans);font-size:13px;color:var(--muted);background:none;border:1px solid var(--line-strong);border-radius:0;padding:7px 15px;cursor:pointer;transition:all .15s}
.filters button:hover{border-color:var(--navy);color:var(--navy)}
.filters button[aria-pressed="true"]{background:var(--navy-deep);border-color:var(--navy-deep);color:#fff}
.count{font-family:var(--mono);font-size:11.5px;color:var(--muted);padding:20px 0 0;margin:0}

/* ============ case page ============ */
.crumb{font-family:var(--mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:26px 0 0;margin:0}
.crumb a{color:var(--navy)}
.crumb a:hover{text-decoration:underline;text-underline-offset:3px}
.crumb .sep{padding:0 8px;color:var(--line-strong)}

.casehead{padding:22px 0 0}
.casehead h1{font-family:var(--serif);font-size:clamp(1.95rem,1.2rem + 2.2vw,2.7rem);font-weight:600;line-height:1.15;letter-spacing:-.02em;margin:0 0 20px;max-width:17em}
.casehead .standfirst{font-size:18px;color:var(--muted);margin:0;max-width:38em;line-height:1.58}

.facts{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:36px 0 0}
.fact{flex:1 1 auto;min-width:150px;padding:16px 24px 16px 0}
.fact + .fact{border-left:1px solid var(--line);padding-left:24px}
.fact dt{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin:0 0 5px}
.fact dd{margin:0;font-size:14.5px;font-weight:500}
@media(max-width:700px){
  .fact{flex:1 0 50%;min-width:0;padding:13px 16px 13px 0}
  .fact + .fact{border-left:0;padding-left:0}
}

.caseplate{background:var(--band);border:1px solid var(--line);padding:40px;margin:40px 0 0;line-height:0}
.caseplate svg{display:block;width:100%;height:auto;max-width:760px;margin:0 auto}
@media(max-width:640px){.caseplate{padding:22px}}

.casebody{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:64px;padding:54px 0 0;align-items:start}
@media(max-width:900px){.casebody{grid-template-columns:1fr;gap:44px;padding-top:40px}}

.block{margin:0 0 40px}
.block:last-child{margin-bottom:0}
.block h2{font-family:var(--mono);font-size:10.5px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--navy);margin:0 0 14px}
.block p{font-size:17px;line-height:1.68;color:#2A3038;margin:0 0 16px;max-width:38em}
.block p:last-child{margin-bottom:0}

.outcome{background:var(--band);border-top:2px solid var(--navy-deep);padding:30px 34px 32px;margin:0}
.outcome h2{color:var(--navy-deep)}
.outcome p{max-width:36em}
@media(max-width:640px){.outcome{padding:24px 20px 26px}}

.rail{border-top:2px solid var(--ink);padding-top:18px}
.rail h2{font-size:13px;font-weight:600;margin:0 0 16px;letter-spacing:.01em}
.rail dl{margin:0}
.rail dt{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin:0 0 4px}
.rail dd{margin:0 0 16px;font-size:14px;line-height:1.5}
.rail dd:last-child{margin-bottom:0}
.stacklist{font-family:var(--mono);font-size:12.5px;line-height:1.9;color:var(--ink)}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:70px}
.pager a{background:#fff;padding:26px 28px;transition:background .15s}
.pager a:hover{background:var(--band)}
.pager .dir{font-family:var(--mono);font-size:10px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin:0 0 8px;display:block}
.pager .t{font-family:var(--serif);font-size:17px;font-weight:600;line-height:1.3;letter-spacing:-.012em;display:block}
.pager .next{text-align:right}
@media(max-width:640px){.pager{grid-template-columns:1fr}.pager .next{text-align:left}}

/* ============ footer ============ */
.foot{background:var(--navy-deep);color:#fff;margin-top:80px;flex:none}
.foot-main{display:flex;justify-content:space-between;flex-wrap:wrap;gap:36px;padding:54px 0 40px}
.foot-main h2{font-family:var(--serif);font-size:24px;font-weight:600;line-height:1.3;letter-spacing:-.015em;margin:0 0 12px;max-width:14em;color:#fff}
.foot-mail{font-size:15px;color:var(--on-navy);border-bottom:1px solid rgba(255,255,255,.3);padding-bottom:2px}
.foot-mail:hover{color:#fff;border-bottom-color:#fff}
.foot-links{display:flex;flex-direction:column;gap:10px;font-size:14.5px;padding-top:4px}
.foot-links a{color:var(--on-navy)}
.foot-links a:hover{color:#fff}
.foot-base{border-top:1px solid var(--rule-navy);padding:18px 0 40px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-navy-dim)}
@media(max-width:640px){
  .foot-main{padding:40px 0 32px;gap:28px}
  .foot-links{flex-direction:row;flex-wrap:wrap;gap:20px}
}

/* ============ prose (about, general) ============ */
.prose{max-width:38em;padding-top:8px}
.prose p{font-size:17px;line-height:1.68;color:#2A3038;margin:0 0 16px}
.prose p:last-child{margin-bottom:0}
.prose a{color:var(--navy);border-bottom:1px solid var(--line-strong);padding-bottom:1px}
.prose a:hover{border-bottom-color:var(--navy)}

/* ============ capability grid (about) ============ */
.capgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border-bottom:1px solid var(--line)}
.capitem{background:#fff;padding:26px 24px 30px}
.capitem h3{font-family:var(--serif);font-size:18px;font-weight:600;letter-spacing:-.012em;margin:0 0 10px;line-height:1.3}
.capitem p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.55}
@media(max-width:820px){.capgrid{grid-template-columns:1fr}}

/* ============ timeline (about) ============ */
.timeline{margin:0}
.timeline > div{display:grid;grid-template-columns:220px minmax(0,1fr);gap:28px;padding:18px 0;border-bottom:1px solid var(--line)}
.timeline dt{font-family:var(--serif);font-size:18px;font-weight:600;letter-spacing:-.012em}
.timeline dd{margin:0;font-size:15px;color:var(--muted);line-height:1.5}
.timeline dd span{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--line-strong);margin-top:6px}
@media(max-width:700px){.timeline > div{grid-template-columns:1fr;gap:6px}}

/* ============ cv ============ */
.cvsec{padding-top:48px}
.cvsec > h2{font-size:15px;font-weight:600;letter-spacing:.02em;margin:0 0 4px;padding-bottom:11px;border-bottom:2px solid var(--ink)}
.job{padding:26px 0;border-bottom:1px solid var(--line)}
.jobhead{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:4px}
.jobhead h3{font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:-.014em;margin:0}
.when{font-family:var(--mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.role{font-size:14.5px;font-weight:500;color:var(--navy);margin:0 0 10px}
.job ul{margin:0 0 6px;padding-left:18px;max-width:44em}
.job li{font-size:15.5px;line-height:1.6;color:#2A3038;margin-bottom:8px}
.job li::marker{color:var(--line-strong)}
.job ul + .role{margin-top:20px}
.tools{font-size:15px;color:var(--muted);max-width:44em;padding-top:20px;line-height:1.7}

/* ============ contact ============ */
.contactlist{margin:36px 0 0;border-top:1px solid var(--line)}
.contactlist > div{display:grid;grid-template-columns:160px minmax(0,1fr);gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.contactlist dt{font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted);padding-top:3px}
.contactlist dd{margin:0;font-size:16.5px}
.contactlist a{color:var(--navy);border-bottom:1px solid var(--line-strong);padding-bottom:2px}
.contactlist a:hover{border-bottom-color:var(--navy)}
@media(max-width:600px){.contactlist > div{grid-template-columns:1fr;gap:6px}}