/* ==========================================================================
   Kevin Kamberi — Research
   Design tokens
   ========================================================================== */

:root{
  --paper:      #ffffff;
  --paper-alt:  #f7f6f3;
  --ink:        #14161a;
  --ink-soft:   #2b2e34;
  --muted:      #63666d;
  --muted-2:    #8a8d93;
  --rule:       #e2e0da;
  --rule-strong:#c9c7bf;

  --navy:       #1b2a4a;
  --bronze:     #8a6a2f;
  --slate:      #33565a;

  --cat-macro:      var(--navy);
  --cat-invest:     var(--bronze);
  --cat-portfolio:  var(--slate);

  --serif: "Source Serif 4", "Iowan Old Style", Georgia, serif;
  --sans:  "IBM Plex Sans", -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:  "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --max: 1120px;
  --gutter: clamp(24px, 5vw, 64px);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; }
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }

.wrap{
  max-width:var(--max);
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

/* ---------- Type ---------- */

h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  letter-spacing:-0.01em;
  margin:0;
  color:var(--ink);
}

.eyebrow{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--muted);
}

.lede{
  font-family:var(--serif);
  font-size:clamp(19px,2.2vw,23px);
  line-height:1.55;
  color:var(--ink-soft);
  font-weight:400;
}

p{
  margin:0 0 1em;
  color:var(--ink-soft);
  text-align:justify;
  text-justify:inter-word;
  -webkit-hyphens:auto;
  -moz-hyphens:auto;
  hyphens:auto;
}
p:last-child{ margin-bottom:0; }

::selection{ background:var(--ink); color:var(--paper); }

/* ---------- Skip link ---------- */
.skip-link{
  position:absolute; left:-999px; top:auto;
  background:var(--ink); color:var(--paper); padding:10px 16px;
  font-family:var(--mono); font-size:13px; z-index:200;
}
.skip-link:focus{ left:16px; top:16px; }

/* ---------- Focus ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, .tab:focus-visible{
  outline:2px solid var(--navy);
  outline-offset:3px;
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header{
  position:sticky; top:0; z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--rule);
}

.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:76px;
}

.wordmark{
  font-family:var(--serif);
  font-size:19px;
  font-weight:600;
  letter-spacing:-0.01em;
  text-decoration:none;
  color:var(--ink);
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.wordmark span{
  font-family:var(--mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--muted);
  margin-top:2px;
}

.main-nav{ display:flex; gap:clamp(18px,2.6vw,34px); }
.main-nav a{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--muted);
  position:relative;
  padding-bottom:4px;
}
.main-nav a::after{
  content:"";
  position:absolute; left:0; right:0; bottom:0;
  height:1px; background:var(--ink);
  transform:scaleX(0); transform-origin:right;
  transition:transform .25s ease;
}
.main-nav a:hover{ color:var(--ink); }
.main-nav a:hover::after{ transform:scaleX(1); transform-origin:left; }
.main-nav a[aria-current="page"]{ color:var(--ink); }
.main-nav a[aria-current="page"]::after{ transform:scaleX(1); }

.nav-toggle{ display:none; }

@media (max-width: 720px){
  .main-nav{
    position:fixed; inset:76px 0 0 0;
    z-index:150;
    background:var(--paper);
    flex-direction:column;
    padding:28px var(--gutter);
    gap:22px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
    border-top:1px solid var(--rule);
  }
  .main-nav.open{ opacity:1; pointer-events:auto; transform:translateY(0); }
  .main-nav a{ font-size:15px; }
  .nav-toggle{
    display:block;
    background:none; border:0; cursor:pointer;
    width:28px; height:20px; position:relative;
  }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after{
    content:""; position:absolute; left:0; right:0; height:1px; background:var(--ink);
  }
  .nav-toggle span{ top:9px; }
  .nav-toggle span::before{ top:-8px; }
  .nav-toggle span::after{ top:8px; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero{
  padding:clamp(56px,9vw,108px) 0 clamp(40px,6vw,72px);
  border-bottom:1px solid var(--rule);
}

.hero-eyebrow{ margin-bottom:22px; }

.hero h1{
  font-size:clamp(40px,6.4vw,72px);
  line-height:1.03;
  max-width:14ch;
}

.hero .role{
  font-family:var(--mono);
  font-size:14px;
  color:var(--muted);
  margin-top:18px;
  letter-spacing:0.02em;
  text-align:left;
}

.hero-lede{
  max-width:none;
  margin-top:34px;
  text-align:left;
  hyphens:none;
}

/* Fact strip — AUM / return / risk metrics + research stats */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  column-gap:28px;
  row-gap:32px;
  margin-top:46px;
  padding-top:32px;
  border-top:1px solid var(--rule);
}
.metric-item{
  padding-left:24px;
  border-left:1px solid var(--rule);
}
.metric-item:nth-child(4n+1){ border-left:none; padding-left:0; }
.metric-item .n{
  font-family:var(--serif);
  font-size:24px;
  color:var(--ink);
  line-height:1.15;
  white-space:nowrap;
}
.metric-item .l{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:0.07em;
  text-transform:uppercase;
  color:var(--muted);
  margin-top:6px;
}

@media (max-width:860px){
  .metric-strip{ grid-template-columns:repeat(2,1fr); }
  .metric-item{ border-left:none; padding-left:0; }
  .metric-item:nth-child(odd){ border-right:1px solid var(--rule); padding-right:24px; }
}
@media (max-width:480px){
  .metric-strip{ grid-template-columns:1fr; row-gap:20px; }
  .metric-item{ border-right:none !important; padding-right:0 !important; border-top:1px solid var(--rule); padding-top:16px; }
  .metric-item:first-child{ border-top:none; padding-top:0; }
}

/* ==========================================================================
   Section scaffolding
   ========================================================================== */

section{ padding:clamp(48px,7vw,84px) 0; }
section.bordered{ border-bottom:1px solid var(--rule); }
section.alt{ background:var(--paper-alt); }

.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{ font-size:clamp(26px,3vw,34px); }

.text-link{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.05em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink);
  border-bottom:1px solid var(--ink);
  padding-bottom:2px;
  white-space:nowrap;
}
.text-link:hover{ color:var(--navy); border-color:var(--navy); }

/* ==========================================================================
   Research cards & grid
   ========================================================================== */

.grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--rule);
  border-left:1px solid var(--rule);
}
@media (max-width:900px){ .grid{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px){ .grid{ grid-template-columns:1fr; } }

.grid-2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:640px){ .grid-2{ grid-template-columns:1fr; } }

.card{
  background:var(--paper);
  padding:30px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
  text-decoration:none;
  color:inherit;
  position:relative;
  border-right:1px solid var(--rule);
  border-bottom:1px solid var(--rule);
  border-left:3px solid transparent;
  transition:background .18s ease;
}
.card:hover{ background:var(--paper-alt); }
.card.cat-macro{ border-left-color:var(--cat-macro); }
.card.cat-invest{ border-left-color:var(--cat-invest); }
.card.cat-portfolio{ border-left-color:var(--cat-portfolio); }

.card-top{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:12px;
}
.card-tag{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:0.09em;
  text-transform:uppercase;
}
.cat-macro .card-tag{ color:var(--cat-macro); }
.cat-invest .card-tag{ color:var(--cat-invest); }
.cat-portfolio .card-tag{ color:var(--cat-portfolio); }

.card-num{ font-family:var(--mono); font-size:11px; color:var(--muted-2); }

.card h3{
  font-size:20px;
  line-height:1.3;
}

.card .abstract{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.6;
  flex:1;
}

.card-foot{
  font-family:var(--mono);
  font-size:11px;
  color:var(--muted-2);
  display:flex;
  justify-content:space-between;
  border-top:1px solid var(--rule);
  padding-top:12px;
  margin-top:auto;
}

/* ==========================================================================
   Filter tabs (research index)
   ========================================================================== */

.tabs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:8px;
}
.tab{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.05em;
  text-transform:uppercase;
  background:none;
  border:1px solid var(--rule-strong);
  color:var(--muted);
  padding:9px 16px;
  cursor:pointer;
  transition:all .15s ease;
}
.tab:hover{ border-color:var(--ink); color:var(--ink); }
.tab[aria-pressed="true"]{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--paper);
}

.result-count{
  font-family:var(--mono);
  font-size:11.5px;
  color:var(--muted-2);
  margin:18px 0 30px;
}

/* ==========================================================================
   Coverage tiles (home)
   ========================================================================== */

.tiles{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--rule);
  border:1px solid var(--rule);
}
@media (max-width:760px){ .tiles{ grid-template-columns:1fr; } }

.tile{
  background:var(--paper);
  padding:34px 28px;
}
.tile .n{
  font-family:var(--mono);
  font-size:11px;
  color:var(--muted-2);
  margin-bottom:16px;
  display:block;
}
.tile h3{ font-size:19px; margin-bottom:10px; }
.tile p{ font-size:14.5px; color:var(--muted); }
.tile-bar{ height:2px; width:36px; margin-bottom:18px; }
.tile:nth-child(1) .tile-bar{ background:var(--cat-macro); }
.tile:nth-child(2) .tile-bar{ background:var(--cat-invest); }
.tile:nth-child(3) .tile-bar{ background:var(--cat-portfolio); }

/* ==========================================================================
   Article (individual research page)
   ========================================================================== */

.article-head{
  padding:clamp(48px,8vw,90px) 0 44px;
  border-bottom:1px solid var(--rule);
}
.article-head .card-tag{ font-size:11.5px; }
.article-head h1{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.12;
  margin-top:18px;
  max-width:20ch;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:28px;
  margin-top:30px;
  font-family:var(--mono);
  font-size:12px;
  color:var(--muted);
}
.article-meta div span{
  display:block;
  color:var(--muted-2);
  font-size:10.5px;
  text-transform:uppercase;
  letter-spacing:0.08em;
  margin-bottom:4px;
}
.article-meta div b{ color:var(--ink); font-weight:500; }

.dl-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-top:32px;
  background:var(--ink);
  color:var(--paper);
  text-decoration:none;
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:14px 22px;
  transition:background .15s ease;
}
.dl-btn:hover{ background:var(--navy); }
.dl-btn svg{ width:14px; height:14px; }

.article-body{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:64px;
  padding:clamp(44px,7vw,76px) 0;
}
@media (max-width:860px){ .article-body{ grid-template-columns:1fr; } }

.article-body h2{ font-size:22px; margin-bottom:18px; }
.article-body section{ padding:0 0 40px; }
.article-body .abstract-text{ font-family:var(--serif); font-size:18px; line-height:1.7; color:var(--ink-soft); }

.findings{ list-style:none; margin:0; padding:0; display:grid; gap:18px; }
.findings li{
  display:grid;
  grid-template-columns:28px 1fr;
  gap:14px;
  font-size:15px;
  color:var(--ink-soft);
  line-height:1.6;
  text-align:justify;
  text-justify:inter-word;
  hyphens:auto;
}
.findings li .idx{ font-family:var(--mono); color:var(--bronze); font-size:13px; padding-top:2px; }

.rail{ border-left:1px solid var(--rule); padding-left:32px; }
@media (max-width:860px){ .rail{ border-left:0; padding-left:0; border-top:1px solid var(--rule); padding-top:32px; } }
.rail h4{ font-family:var(--mono); font-size:11px; letter-spacing:0.09em; text-transform:uppercase; color:var(--muted); margin-bottom:14px; }
.rail dl{ margin:0 0 30px; display:grid; gap:12px; }
.rail dt{ font-family:var(--mono); font-size:10.5px; text-transform:uppercase; color:var(--muted-2); letter-spacing:0.06em; }
.rail dd{ margin:2px 0 0; font-size:14.5px; color:var(--ink); }

.disclosure{
  font-size:12.5px;
  color:var(--muted-2);
  border-top:1px solid var(--rule);
  padding-top:18px;
  line-height:1.6;
}

.related{ border-top:1px solid var(--rule); }

/* ==========================================================================
   About / CV
   ========================================================================== */

.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
}
@media (max-width:860px){ .two-col{ grid-template-columns:1fr; gap:36px; } }

.monogram{
  width:88px; height:88px;
  border:1px solid var(--ink);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--serif);
  font-size:30px;
  margin-bottom:28px;
}

.portrait{
  width:168px;
  height:168px;
  object-fit:cover;
  object-position:center 15%;
  border:1px solid var(--ink);
  margin-bottom:28px;
  display:block;
  filter:grayscale(100%);
}

.contact-photo{
  width:100%;
  max-width:320px;
  height:auto;
  border:1px solid var(--ink);
  display:block;
}

.timeline{ list-style:none; margin:0; padding:0; }
.timeline > li{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:20px;
  padding:22px 0;
  border-top:1px solid var(--rule);
}
.timeline > li:last-child{ border-bottom:1px solid var(--rule); }
.timeline .when{ font-family:var(--mono); font-size:12px; color:var(--muted); padding-top:2px; }
.timeline h4{ font-size:17px; margin-bottom:4px; }
.timeline .org{ font-family:var(--mono); font-size:12px; color:var(--muted); margin-bottom:8px; display:block; }
.timeline p{ font-size:14.5px; color:var(--muted); }
@media (max-width:600px){ .timeline > li{ grid-template-columns:1fr; gap:6px; } }

.cv-bullets{
  list-style:none;
  margin:8px 0 0;
  padding:0;
  display:grid;
  gap:7px;
}
.cv-bullets li{
  font-size:14.5px;
  color:var(--muted);
  line-height:1.6;
  padding-left:17px;
  position:relative;
}
.cv-bullets li::before{
  content:"–";
  position:absolute;
  left:0;
  color:var(--bronze);
}

.taglist{ display:flex; flex-wrap:wrap; gap:8px; }
.taglist span{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:0.03em;
  border:1px solid var(--rule-strong);
  color:var(--ink-soft);
  padding:7px 12px;
}

.cv-download{
  display:flex; align-items:center; justify-content:space-between;
  border:1px solid var(--rule-strong);
  padding:24px 28px;
  margin-top:12px;
  flex-wrap:wrap;
  gap:16px;
}
.cv-download .meta{ font-family:var(--mono); font-size:11.5px; color:var(--muted); }
.cv-download h3{ font-size:18px; margin-bottom:4px; }

/* ==========================================================================
   Contact
   ========================================================================== */

.contact-grid{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:72px;
}
@media (max-width:860px){ .contact-grid{ grid-template-columns:1fr; gap:40px; } }

.contact-list{ list-style:none; margin:26px 0 0; padding:0; display:grid; gap:20px; }
.contact-list dt, .contact-list span.k{
  display:block; font-family:var(--mono); font-size:10.5px; text-transform:uppercase; letter-spacing:0.08em; color:var(--muted-2); margin-bottom:4px;
}
.contact-list a{ font-size:15.5px; text-decoration:none; border-bottom:1px solid var(--rule-strong); }
.contact-list a:hover{ border-color:var(--ink); }

.field{ margin-bottom:22px; }
.field label{
  display:block; font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:0.08em; color:var(--muted); margin-bottom:8px;
}
.field input, .field textarea, .field select{
  width:100%;
  border:1px solid var(--rule-strong);
  background:var(--paper);
  padding:13px 14px;
  font-family:var(--sans);
  font-size:15px;
  color:var(--ink);
}
.field textarea{ resize:vertical; min-height:130px; }
.field input:focus, .field textarea:focus, .field select:focus{ outline:2px solid var(--navy); outline-offset:2px; border-color:var(--navy); }

.submit-btn{
  background:var(--ink);
  color:var(--paper);
  border:0;
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  padding:15px 26px;
  cursor:pointer;
  transition:background .15s ease;
}
.submit-btn:hover{ background:var(--navy); }

.form-note{ font-size:12.5px; color:var(--muted-2); margin-top:14px; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer{
  border-top:1px solid var(--rule);
  padding:44px 0;
}
.footer-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
}
.footer-links{ display:flex; gap:24px; flex-wrap:wrap; }
.footer-links a{
  font-family:var(--mono); font-size:11.5px; letter-spacing:0.04em; text-transform:uppercase;
  text-decoration:none; color:var(--muted);
}
.footer-links a:hover{ color:var(--ink); }
.copy{ font-family:var(--mono); font-size:11.5px; color:var(--muted-2); }
.disclaimer{
  font-size:12px;
  color:var(--muted-2);
  margin-top:24px;
  padding-top:24px;
  border-top:1px solid var(--rule);
  max-width:820px;
  line-height:1.7;
}

/* ==========================================================================
   Page intro (Research / About / CV / Contact headers)
   ========================================================================== */

.page-head{
  padding:clamp(48px,8vw,88px) 0 clamp(36px,5vw,56px);
  border-bottom:1px solid var(--rule);
}
.page-head h1{ font-size:clamp(34px,5vw,54px); margin-top:16px; max-width:16ch; }
.page-head .lede{ margin-top:20px; max-width:60ch; }

/* Reveal-on-scroll */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

@media (max-width:600px){
  p, .findings li{ text-align:left; hyphens:none; }
}