/* ===========================================================
   Hari Jayachandran — portfolio design system (onyx & brass)
   =========================================================== */

:root{
  --paper:#F3EFE6;
  --paper-2:#ECE5D3;
  --ink:#1B170F;
  --ink-soft:#5B5340;
  --ink-faint:#736A53;
  --line:#DDD3B6;
  --brass:#886726;
  --brass-strong:#7A5D22;
  --brass-soft:rgba(142,108,40,0.10);
  --glass-bg:rgba(255,253,247,0.55);
  --glass-border:rgba(142,108,40,0.22);
  --maxw:1140px;
  --radius-lg:16px;
  --radius-sm:11px;
  color-scheme:light;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0D0C0A;
    --paper-2:#131110;
    --ink:#ECE4CF;
    --ink-soft:#AD9F7C;
    --ink-faint:#857A5C;
    --line:rgba(219,199,140,0.14);
    --brass:#C9A24E;
    --brass-strong:#8C6A2D;
    --brass-soft:rgba(201,162,78,0.14);
    --glass-bg:rgba(23,20,16,0.55);
    --glass-border:rgba(201,162,78,0.20);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0D0C0A;
  --paper-2:#131110;
  --ink:#ECE4CF;
  --ink-soft:#AD9F7C;
  --ink-faint:#857A5C;
  --line:rgba(219,199,140,0.14);
  --brass:#C9A24E;
  --brass-strong:#8C6A2D;
  --brass-soft:rgba(201,162,78,0.14);
  --glass-bg:rgba(23,20,16,0.55);
  --glass-border:rgba(201,162,78,0.20);
  color-scheme:dark;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Work Sans', -apple-system, sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background-color 0.2s ease, color 0.2s ease;
}
h1,h2,h3,h4{margin:0; font-weight:600; letter-spacing:-0.005em;}
p{margin:0;}
a{color:inherit; text-decoration:none;}
a:focus-visible, button:focus-visible{outline:2px solid var(--brass); outline-offset:3px;}
img{max-width:100%; display:block;}

.wrap{max-width:var(--maxw); margin:0 auto; padding:0 28px;}

.bg-glow{position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none;}
.bg-glow::before, .bg-glow::after{
  content:""; position:absolute; width:520px; height:520px; border-radius:50%;
  filter:blur(130px); opacity:0.16; background:var(--brass);
}
.bg-glow::before{top:-160px; left:-120px;}
.bg-glow::after{bottom:-200px; right:-140px; opacity:0.10;}

/* ---------- Kicker (section / hero label) ---------- */
.kicker{
  font-family:'Fraunces', serif; font-style:italic; font-weight:500;
  color:var(--brass); font-size:0.98rem; letter-spacing:0.02em;
}

/* ---------- Nav ---------- */
header.nav{
  position:sticky; top:0; z-index:30;
  background:var(--paper); border-bottom:1px solid var(--line);
  transition:background-color 0.2s ease, border-color 0.2s ease;
}
.nav-inner{
  max-width:var(--maxw); margin:0 auto; padding:14px 28px;
  display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
}
.nav-brand{display:flex; align-items:center; gap:14px;}
.crest-mark{
  width:44px; height:auto; object-fit:contain;
  flex:none;
}
.nav-brand-text{display:flex; flex-direction:column; line-height:1.25;}
.nav-brand-text .name{font-family:'Fraunces', serif; font-weight:600; font-size:1.02rem; color:var(--ink);}
.nav-brand-text .role{font-size:0.76rem; color:var(--brass);}
.nav-links{display:flex; gap:26px; list-style:none; margin:0; padding:0; font-size:0.9rem;}
.nav-links a{color:var(--ink-soft); border-bottom:1px solid transparent; padding-bottom:3px; transition:color 0.15s ease, border-color 0.15s ease;}
.nav-links a:hover{color:var(--ink); border-color:var(--brass);}
.nav-right{display:flex; align-items:center; gap:14px;}

/* ---------- Breadcrumb (inner pages) ---------- */
.nav-brand-group{display:flex; align-items:center; gap:16px; min-width:0;}
.crest-home{flex:none; display:flex;}
.breadcrumb{display:flex; align-items:center; min-width:0; overflow:hidden; font-size:0.88rem;}
.breadcrumb .crumb-full{display:flex; align-items:center; gap:8px; flex-wrap:wrap;}
.breadcrumb a{color:var(--ink-soft); transition:color 0.15s ease; white-space:nowrap;}
.breadcrumb a:hover{color:var(--brass);}
.breadcrumb .crumb-sep{color:var(--ink-faint); font-size:0.8rem;}
.breadcrumb .crumb-current{color:var(--ink); font-weight:600; white-space:nowrap;}
.breadcrumb .crumb-back{display:none; color:var(--ink-soft); font-weight:500; white-space:nowrap;}
.breadcrumb .crumb-back:hover{color:var(--brass);}
.nav-util{font-size:0.87rem; color:var(--ink-soft); white-space:nowrap; transition:color 0.15s ease;}
.nav-util:hover{color:var(--brass);}
@media (max-width: 640px){
  .breadcrumb .crumb-full{display:none;}
  .breadcrumb .crumb-back{display:inline-flex;}
}
.theme-toggle{
  width:38px; height:38px; border-radius:50%; border:1px solid var(--line);
  background:transparent; color:var(--ink-soft); cursor:pointer; display:inline-flex;
  align-items:center; justify-content:center; flex:none;
  transition:color 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover{color:var(--ink); border-color:var(--brass);}
.theme-toggle .icon-sun{display:none;}
.theme-toggle .icon-moon{display:block;}
:root[data-theme="dark"] .theme-toggle .icon-sun{display:block;}
:root[data-theme="dark"] .theme-toggle .icon-moon{display:none;}
.btn-cta{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--brass-strong); color:#FBF7EC; font-weight:600; font-size:0.85rem;
  padding:10px 20px; border-radius:var(--radius-sm); transition:filter 0.15s ease;
}
.btn-cta:hover{filter:brightness(1.12);}
.btn-ghost{
  display:inline-flex; align-items:center; gap:8px;
  border:1px solid var(--line); color:var(--ink); font-weight:500; font-size:0.9rem;
  padding:10px 22px; border-radius:var(--radius-sm); transition:border-color 0.15s ease;
}
.btn-ghost:hover{border-color:var(--brass);}

/* ---------- Hero ---------- */
.hero{padding:96px 0 88px;}
.hero h1{font-family:'Fraunces', serif; font-weight:600; font-size:clamp(2.2rem, 4.2vw, 3.4rem); line-height:1.14; max-width:19ch; margin-top:12px;}
.hero .lede{margin-top:22px; max-width:52ch; font-size:1.06rem; color:var(--ink-soft); line-height:1.7;}
.hero-cta{margin-top:34px; display:flex; gap:16px; flex-wrap:wrap;}

.crest-hero{
  width:clamp(140px, 18vw, 196px); height:auto; margin:0 auto;
  filter:drop-shadow(0 14px 26px rgba(0,0,0,0.22));
  animation:crestReveal 1s cubic-bezier(0.22,0.8,0.3,1) both;
}
@keyframes crestReveal{ from{opacity:0; transform:scale(0.9);} to{opacity:1; transform:scale(1);} }
@media (prefers-reduced-motion: reduce){ .crest-hero{animation:none;} }

.facet-divider{display:flex; justify-content:center; margin-top:56px;}

/* ---------- Section shell ---------- */
section{padding:88px 0;}
section.tint{background:var(--paper-2);}
.section-head{max-width:58ch; margin-bottom:48px;}
.section-head .kicker{margin-bottom:14px; display:block;}
.section-head h2{font-family:'Fraunces', serif; font-weight:600; font-size:clamp(1.6rem, 2.6vw, 2.2rem);}
.section-head p{margin-top:14px; color:var(--ink-soft); font-size:1.02rem; line-height:1.6;}

/* ---------- Plates (glass panels) ---------- */
.plate{
  background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-lg);
  padding:28px; backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  box-shadow:0 10px 30px rgba(0,0,0,0.08);
  transition:border-color 0.2s ease;
}
.plate:hover{border-color:var(--brass);}
.prose{max-width:68ch;}

/* ---------- Focus clusters ---------- */
.clusters{display:grid; grid-template-columns:repeat(3, 1fr); gap:20px;}
.cluster h3{font-family:'Fraunces', serif; font-weight:600; font-size:1.02rem; margin-bottom:16px; display:flex; align-items:center; gap:10px;}
.cluster h3 .facet{width:9px; height:9px; border:1px solid var(--brass); transform:rotate(45deg); flex:none;}
.cluster-item{padding:12px 0; border-top:1px solid var(--line);}
.cluster-item:first-of-type{border-top:none; padding-top:0;}
.cluster-item h4{font-size:0.94rem; margin-bottom:4px; font-weight:600;}
.cluster-item p{color:var(--ink-soft); font-size:0.88rem; line-height:1.55;}

/* ---------- Work grid ---------- */
.work-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:20px;}
.work-card{display:flex; flex-direction:column; height:100%;}
.work-card .tag{font-size:0.78rem; font-weight:600; color:var(--brass);}
.work-card h3{font-family:'Fraunces', serif; font-weight:600; font-size:1.2rem; margin-top:10px; line-height:1.25;}
.work-card .stat-pill{
  margin-top:16px; display:inline-flex; width:fit-content;
  border:1px solid var(--brass); color:var(--brass);
  font-size:0.78rem; font-weight:600; padding:5px 12px; border-radius:999px;
}
.work-card p.desc{margin-top:14px; color:var(--ink-soft); font-size:0.92rem; line-height:1.6; flex:1;}
.work-card .go{margin-top:20px; font-size:0.87rem; font-weight:600; color:var(--ink); display:inline-flex; align-items:center; gap:6px;}

/* ---------- Stats row ---------- */
.stats{display:grid; grid-template-columns:repeat(4, 1fr); gap:20px;}
.stat-box .num{font-family:'Fraunces', serif; font-size:clamp(1.7rem, 2.8vw, 2.3rem); font-weight:600; color:var(--brass);}
.stat-box .label{margin-top:6px; color:var(--ink-soft); font-size:0.85rem; line-height:1.5;}

/* ---------- Recognition badges ---------- */
.badge-row{display:flex; flex-wrap:wrap; gap:10px; margin-top:22px;}
.badge{font-size:0.8rem; font-weight:500; padding:7px 14px; border-radius:999px; border:1px solid var(--brass); color:var(--brass);}

/* ---------- Career timeline ---------- */
.timeline{margin-top:24px;}
.timeline-row{padding:18px 0; border-top:1px solid var(--line); display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;}
.timeline-row:first-child{border-top:none; padding-top:0;}
.timeline-row .co{font-weight:600; font-size:0.95rem;}
.timeline-row .dates{font-size:0.8rem; color:var(--ink-faint); white-space:nowrap;}
.timeline-row .desc{color:var(--ink-soft); font-size:0.9rem; line-height:1.6; margin-top:4px; width:100%;}

/* ---------- Contact ---------- */
.contact-email{font-family:'Fraunces', serif; font-size:clamp(1.3rem, 2.4vw, 1.7rem); font-weight:600; color:var(--brass);}
.contact-secondary{margin-top:20px; display:flex; gap:24px; flex-wrap:wrap;}
.contact-secondary a{color:var(--ink-soft); border-bottom:1px solid var(--line); padding-bottom:2px; font-size:0.92rem;}
.contact-secondary a:hover{color:var(--ink); border-color:var(--brass);}

footer{padding:30px 0 44px; border-top:1px solid var(--line); margin-top:10px;}
.footer-inner{display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; color:var(--ink-faint); font-size:0.85rem;}
.footer-mark{display:inline-flex; align-items:center; gap:9px; color:var(--ink-faint); transition:color 0.15s ease;}
.footer-mark img{width:auto; height:22px; object-fit:contain;}
.footer-mark:hover{color:var(--brass);}

/* ---------- Case study pages ---------- */
.case-header{padding:64px 0 40px;}
.case-header .tag{font-size:0.85rem; font-weight:600; color:var(--brass);}
.case-header h1{font-family:'Fraunces', serif; font-weight:600; font-size:clamp(2rem, 3.8vw, 2.9rem); margin-top:12px; max-width:22ch;}
.case-meta{display:flex; gap:28px; flex-wrap:wrap; margin-top:28px;}
.case-meta .m-item .label{font-size:0.78rem; color:var(--ink-faint); letter-spacing:0.03em;}
.case-meta .m-item .value{font-size:0.95rem; font-weight:600; margin-top:4px; color:var(--ink);}

.case-block{padding:36px 0; border-top:1px solid var(--line);}
.case-block h2{font-family:'Fraunces', serif; font-weight:600; font-size:1.35rem; margin-bottom:14px;}
.case-block p{color:var(--ink-soft); font-size:1rem; line-height:1.7;}
.case-block p + p{margin-top:14px;}
.case-block ul{margin:14px 0 0; padding-left:20px; color:var(--ink-soft); font-size:0.98rem; line-height:1.7;}
.case-block li + li{margin-top:6px;}

.outcome-banner{
  background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-lg);
  padding:26px 28px; margin-top:8px; backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
}
.outcome-banner .label{font-size:0.8rem; color:var(--brass); font-weight:700; letter-spacing:0.03em;}
.outcome-banner .value{font-size:1.15rem; font-weight:600; margin-top:8px; color:var(--ink);}

.deepdive-cta{
  margin-top:16px; display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
  background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-lg); padding:26px 28px;
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
}
.deepdive-cta .lock-icon{
  width:44px; height:44px; border-radius:50%; background:var(--brass-soft); color:var(--brass);
  display:flex; align-items:center; justify-content:center; flex:none; border:1px solid var(--glass-border);
}
.deepdive-cta h3{font-family:'Fraunces', serif; font-weight:600; font-size:1.05rem;}
.deepdive-cta p{color:var(--ink-soft); font-size:0.9rem; margin-top:4px;}

/* ---------- Protected page banner ---------- */
.confidential-banner{
  background:var(--brass-soft);
  border:1px solid var(--glass-border); border-radius:14px; padding:16px 20px;
  display:flex; align-items:center; gap:12px; font-size:0.9rem; color:var(--ink);
  margin-top:28px;
}
.confidential-banner svg{flex:none; color:var(--brass);}

/* ---------- Media placeholder ---------- */
.media-placeholder{
  border:1.5px dashed var(--line); border-radius:var(--radius-lg);
  padding:48px 24px; text-align:center; color:var(--ink-faint);
  display:flex; flex-direction:column; align-items:center; gap:10px; margin-top:18px;
  background:rgba(142,108,40,0.04);
}
.media-placeholder svg{opacity:0.6;}
.media-placeholder .ph-title{font-size:0.92rem; font-weight:600; color:var(--ink-soft);}
.media-placeholder .ph-sub{font-size:0.82rem;}

/* ---------- Persona card ---------- */
.persona-card{display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:16px;}
.persona-col h4{font-size:0.82rem; color:var(--ink-faint); margin-bottom:8px;}
.persona-col p{font-size:0.92rem;}

/* ---------- Docs-style layout (sidebar navigation) ---------- */
.docs-layout{display:grid; grid-template-columns:1fr 220px; gap:56px; align-items:start;}
.docs-sidebar{position:sticky; top:96px; align-self:start;}
.docs-sidebar .on-this-page{font-size:0.76rem; color:var(--ink-faint); font-weight:600; margin-bottom:14px; letter-spacing:0.04em;}
.docs-sidebar ul{list-style:none; margin:0; padding:0; border-left:2px solid var(--line);}
.docs-sidebar li{margin:0;}
.docs-sidebar a{
  display:block; padding:7px 0 7px 16px; margin-left:-2px; font-size:0.87rem; color:var(--ink-soft);
  border-left:2px solid transparent; transition:color 0.15s ease, border-color 0.15s ease;
}
.docs-sidebar a:hover{color:var(--ink);}
.docs-sidebar a.active{color:var(--brass); border-left-color:var(--brass); font-weight:600;}
.docs-sidebar .group-label{font-size:0.72rem; color:var(--ink-faint); padding:16px 0 6px 16px; font-weight:600;}

.doc-section{padding:32px 0; border-top:1px solid var(--line); scroll-margin-top:96px;}
.doc-section:first-child{border-top:none; padding-top:0;}
.doc-section h2{font-family:'Fraunces', serif; font-weight:600; font-size:1.3rem; margin-bottom:12px;}
.doc-section p{color:var(--ink-soft); font-size:0.98rem; line-height:1.7;}
.doc-section p + p{margin-top:12px;}

/* ---------- Simple list rows (lighter than a full card) ---------- */
.list-row{padding:16px 0; border-top:1px solid var(--line); display:flex; justify-content:space-between; align-items:baseline; gap:16px; flex-wrap:wrap;}
.list-row:first-child{border-top:none; padding-top:0;}
.list-row .title{font-weight:600; font-size:0.98rem; color:var(--ink);}
.list-row .desc{color:var(--ink-soft); font-size:0.88rem; flex-basis:100%;}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .clusters{grid-template-columns:1fr;}
  .work-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr); row-gap:24px;}
  .persona-card{grid-template-columns:1fr;}
  .docs-layout{grid-template-columns:1fr;}
  .docs-sidebar{position:static; order:-1; margin-bottom:32px; align-self:auto;}
  .docs-sidebar ul{display:flex; flex-wrap:wrap; gap:2px 20px; border-left:none; padding-left:0;}
  .docs-sidebar a{padding:4px 0; border-left:none;}
  section{padding:64px 0;}
  .nav-links{order:3; width:100%; justify-content:center; padding-top:12px; border-top:1px solid var(--line); margin-top:12px; display:flex;}
}
@media (max-width: 560px){
  .wrap{padding:0 18px;}
  .case-meta{gap:18px;}
}