/* ============================================================
   Abhishek Goswami — Founder Portfolio
   Premium dark theme, blue/teal accents, glassmorphism
   Font: Plus Jakarta Sans + Sora
   ============================================================ */

:root{
  --bg:#0a0b0f;
  --bg-2:#0d0f14;
  --panel:#12141a;
  --panel-2:#181b22;
  --panel-glass:rgba(255,255,255,.035);
  --text:#f5f6f8;
  --muted:#9598a3;
  --muted-2:#6b6e79;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --primary:#3b6df0;
  --primary-soft:rgba(59,109,240,.14);
  --teal:#14b8a6;
  --teal-soft:rgba(20,184,166,.14);
  --violet:#7c5cff;
  --violet-soft:rgba(124,92,255,.14);
  --amber:#f2b134;
  --amber-soft:rgba(242,177,52,.14);
  --green:#22c58b;
  --green-soft:rgba(34,197,139,.14);
  --shadow:0 24px 70px rgba(0,0,0,.45);
  --shadow-lift:0 30px 90px rgba(0,0,0,.55);
  --radius-lg:26px;
  --radius:20px;
  --radius-sm:14px;
  --header-h:74px;
  --header:rgba(10,11,15,.7);
  --font-display:'Sora','Plus Jakarta Sans',system-ui,sans-serif;
  --font-body:'Plus Jakarta Sans','Sora',system-ui,sans-serif;
}

/* ---------- LIGHT MODE ---------- */
[data-theme="light"]{
  --bg:#f4f5f9;
  --bg-2:#eceef3;
  --panel:#ffffff;
  --panel-2:#f7f8fb;
  --panel-glass:rgba(59,109,240,.04);
  --text:#0f1117;
  --muted:#555a68;
  --muted-2:#7e8290;
  --line:rgba(15,17,23,.1);
  --line-strong:rgba(15,17,23,.18);
  --primary:#2f5de0;
  --primary-soft:rgba(47,93,224,.1);
  --teal:#0d9b8a;
  --teal-soft:rgba(13,155,138,.1);
  --violet:#6a4de0;
  --violet-soft:rgba(106,77,224,.1);
  --amber:#d99a1c;
  --amber-soft:rgba(217,154,28,.1);
  --green:#1aad78;
  --green-soft:rgba(26,173,120,.1);
  --shadow:0 8px 32px rgba(15,17,23,.08),0 1px 3px rgba(15,17,23,.06);
  --shadow-lift:0 16px 48px rgba(15,17,23,.12),0 2px 6px rgba(15,17,23,.08);
  --header:rgba(244,245,249,.82);
}
[data-theme="light"] .site-header{
  border-color:rgba(15,17,23,.1);
  box-shadow:0 4px 20px rgba(15,17,23,.08);
}
[data-theme="light"] .monogram{
  background:linear-gradient(155deg,#2f5de0,#1f45b8);
  box-shadow:0 6px 18px rgba(47,93,224,.3);
}
[data-theme="light"] .button{
  background:linear-gradient(155deg,#2f5de0,#1f45b8);
  color:#fff;
  box-shadow:0 8px 24px rgba(47,93,224,.18);
}
[data-theme="light"] .button:hover{
  box-shadow:0 12px 32px rgba(47,93,224,.28);
}
[data-theme="light"] .button-secondary{
  background:linear-gradient(155deg,#2f5de0,#1f45b8);
  color:#fff;
  border-color:transparent;
  box-shadow:0 8px 24px rgba(47,93,224,.18);
}
[data-theme="light"] .button-secondary:hover{
  background:linear-gradient(155deg,#2450c9,#1a3aa8);
  color:#fff;
  box-shadow:0 12px 32px rgba(47,93,224,.28);
}
[data-theme="light"] .tile{
  border-color:rgba(15,17,23,.08);
  box-shadow:0 2px 12px rgba(15,17,23,.06);
}
[data-theme="light"] .tile:hover{
  box-shadow:0 8px 28px rgba(15,17,23,.1);
}
[data-theme="light"] .tile-project:hover{
  border-color:rgba(47,93,224,.3);
}
[data-theme="light"] .phil-item{
  border-color:rgba(15,17,23,.08);
  box-shadow:0 2px 12px rgba(15,17,23,.05);
}
[data-theme="light"] .phil-item:hover{
  border-color:rgba(47,93,224,.25);
  box-shadow:0 6px 20px rgba(15,17,23,.08);
}
[data-theme="light"] .ambient{opacity:.06}
[data-theme="light"] .progress span{
  background:linear-gradient(90deg,#2f5de0,#0d9b8a);
}
[data-theme="light"] .accent-text{
  background:linear-gradient(100deg,#2f5de0,#0d9b8a);
  background-clip:text;-webkit-background-clip:text;color:transparent;
}
[data-theme="light"] .eyebrow>span{
  background:#2f5de0;
  box-shadow:0 0 12px rgba(47,93,224,.6);
}
[data-theme="light"] .tl-item::before{
  background:#2f5de0;
  box-shadow:0 0 0 2px var(--bg),0 0 14px rgba(47,93,224,.3);
}
[data-theme="light"] .timeline::before{
  background:linear-gradient(#2f5de0,#0d9b8a);
}
[data-theme="light"] .hv-card{
  border-color:rgba(15,17,23,.08);
  box-shadow:0 4px 16px rgba(15,17,23,.07);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 24px)}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.65;
  overflow-x:hidden;transition:background .25s,color .25s;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-3;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,black,transparent 78%);
}
[data-theme="light"] body::before{
  background-image:linear-gradient(rgba(15,17,23,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(15,17,23,.03) 1px,transparent 1px);
}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3{font-family:var(--font-display)}
::selection{background:var(--primary);color:#fff}

.skip-link{position:fixed;left:1rem;top:-100px;z-index:1000;background:var(--text);color:var(--bg);padding:.75rem 1rem;border-radius:10px}
.skip-link:focus{top:1rem}
.progress{position:fixed;top:0;left:0;width:100%;height:3px;z-index:1000}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--primary),var(--teal))}
.ambient{position:fixed;border-radius:50%;filter:blur(130px);pointer-events:none;z-index:-2;opacity:.14}
.ambient-one{width:460px;height:460px;background:var(--primary);top:-200px;left:-180px}
.ambient-two{width:400px;height:400px;background:var(--teal);right:-200px;top:30%}

/* ---------- layout ---------- */
.section-shell{width:min(1280px,calc(100% - 40px));margin-inline:auto}

/* ---------- header ---------- */
.site-header{
  position:fixed;z-index:100;top:16px;left:50%;transform:translateX(-50%);
  width:min(1280px,calc(100% - 28px));height:var(--header-h);padding:0 14px 0 12px;
  border:1px solid var(--line);border-radius:20px;background:var(--header);
  backdrop-filter:blur(20px) saturate(160%);
  display:flex;align-items:center;justify-content:space-between;
  box-shadow:0 14px 45px rgba(0,0,0,.22);
}
.brand{display:flex;align-items:center;gap:12px;font-weight:700}
.monogram{
  display:grid;place-items:center;width:44px;height:44px;border-radius:13px;
  background:linear-gradient(155deg,var(--primary),#2450c9);color:#fff;
  font-weight:800;letter-spacing:-.06em;font-family:var(--font-display);
  box-shadow:0 8px 20px rgba(59,109,240,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.desktop-nav{display:flex;gap:8px;color:var(--muted);font-size:.86rem;font-weight:600}
.desktop-nav a{padding:9px 14px;border-radius:11px;transition:background .2s,color .2s}
.desktop-nav a:hover,.desktop-nav a.active{color:var(--text);background:var(--panel-glass)}
.header-actions{display:flex;align-items:center;gap:8px}
.button{
  display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:49px;padding:0 22px;
  border:1px solid transparent;border-radius:14px;background:linear-gradient(155deg,var(--primary),#2450c9);color:#fff;
  font-weight:700;font-size:.92rem;box-shadow:0 14px 30px rgba(59,109,240,.22);transition:transform .2s,box-shadow .2s;cursor:pointer;
}
.button:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(59,109,240,.32)}
.button:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(20,184,166,.7);outline-offset:3px}
.button-small{min-height:44px;padding:0 18px;font-size:.84rem}
.button-secondary{background:transparent;color:var(--text);border-color:var(--line-strong);box-shadow:none}
.button-secondary:hover{background:var(--panel-glass);transform:translateY(-2px)}
.icon-button,.menu-button{border:1px solid var(--line);background:var(--panel-glass);color:var(--text);width:44px;height:44px;border-radius:13px;cursor:pointer;transition:background .2s}
.icon-button:hover,.menu-button:hover{border-color:var(--line-strong)}
.menu-button{display:none;position:relative}
.menu-button span{display:block;width:18px;height:1.5px;background:currentColor;margin:5px auto;transition:.2s}
.site-header.menu-open .menu-button span:first-child{transform:translateY(3.25px) rotate(45deg)}
.site-header.menu-open .menu-button span:last-child{transform:translateY(-3.25px) rotate(-45deg)}
.mobile-menu{display:none}

/* ---------- shared type ---------- */
.eyebrow,.section-label,.tiny-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.14em;font-weight:800}
.eyebrow{display:flex;align-items:center;gap:10px;color:var(--muted)}
.eyebrow>span{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 16px rgba(59,109,240,.8)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(2.3rem,4.1vw,4.2rem);line-height:1.06;letter-spacing:-.045em;margin-bottom:20px}
.accent-text{background:linear-gradient(100deg,var(--primary),var(--teal));background-clip:text;-webkit-background-clip:text;color:transparent}
.hero-sub{max-width:580px;color:var(--muted);font-size:1.03rem;line-height:1.75}
.cta-row{display:flex;gap:12px;margin:28px 0 0;flex-wrap:wrap}
.muted{color:var(--muted)}

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero-section{
  min-height:100dvh;display:flex;align-items:center;justify-content:space-between;gap:48px;
  padding-top:130px;padding-bottom:40px;position:relative;
  width:min(1280px,calc(100% - 40px));margin-inline:auto;
}
.hero-content{max-width:640px;flex:1}
.hero-visual{flex:0 0 420px;position:relative}
.hv-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:14px;
  transform:perspective(800px) rotateY(-6deg) rotateX(2deg);
}
.hv-card{
  border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);
  padding:18px;min-height:140px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.hv-card::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(59,109,240,.08),transparent 60%)}
.hv-card-1{grid-row:span 2}
.hv-bar{width:60%;height:6px;border-radius:4px;background:var(--line-strong);margin-bottom:10px}
.hv-bar.short{width:38%}
.hv-chart{display:flex;align-items:flex-end;gap:6px;height:60px;margin-top:auto;padding-top:16px}
.hv-chart span{flex:1;border-radius:4px 4px 0 0;background:var(--primary-soft)}
.hv-chart span:nth-child(1){height:40%}
.hv-chart span:nth-child(2){height:70%;background:var(--teal-soft)}
.hv-chart span:nth-child(3){height:55%}
.hv-chart span:nth-child(4){height:90%;background:linear-gradient(var(--primary),var(--teal))}
.hv-chart span:nth-child(5){height:60%}
.hv-icon{font-size:2rem;margin-bottom:10px;color:var(--teal)}
.hv-rows{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.hv-rows span{width:100%;height:5px;border-radius:3px;background:var(--line)}
.hv-rows span:nth-child(odd){width:80%;background:var(--primary-soft)}
.hv-circle{width:50px;height:50px;border-radius:50%;border:3px solid var(--violet-soft);margin-top:12px;position:relative}
.hv-circle::after{content:"";position:absolute;width:60%;height:60%;border-radius:50%;background:var(--violet-soft);top:20%;left:20%}

.scroll-cue{
  position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--muted);
  font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;
}
.scroll-cue span{width:1px;height:26px;background:linear-gradient(var(--muted),transparent);animation:cue 1.8s ease-in-out infinite}
@keyframes cue{0%,100%{transform:translateY(0);opacity:.4}50%{transform:translateY(8px);opacity:1}}

/* ============================================================
   BENTO GRID
   ============================================================ */
.content-section{padding:88px 0}
.section-heading{max-width:780px;margin-bottom:38px}
.section-label{color:var(--primary);margin-bottom:10px}
.section-heading h2{font-size:clamp(1.9rem,3.4vw,3.2rem);line-height:1.12;letter-spacing:-.04em;margin:0}

.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:14px}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-7{grid-column:span 7}
.row-2{grid-row:span 2}

.tile{
  border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel);
  box-shadow:var(--shadow);position:relative;overflow:hidden;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),border-color .25s,box-shadow .25s;
}

.tile-panel{padding:28px}
.tile-panel p{color:var(--muted);line-height:1.8}
.tile-panel h2{font-size:clamp(1.7rem,3vw,2.6rem);letter-spacing:-.03em;margin-bottom:10px}
.principle-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}
.principle-grid span{padding:16px;border:1px solid var(--line);border-radius:var(--radius-sm);font-size:.84rem;font-weight:700;background:var(--panel-glass)}

/* ---------- projects ---------- */
.tile-project{padding:26px;display:flex;flex-direction:column;justify-content:space-between;min-height:240px}
.tile-project:hover{transform:translateY(-5px);border-color:rgba(59,109,240,.35);box-shadow:var(--shadow-lift)}
.tile-project.featured{background:radial-gradient(circle at 90% 10%,rgba(59,109,240,.18),transparent 34%),var(--panel)}
.tile-project.accent-teal{background:radial-gradient(circle at 88% 12%,rgba(20,184,166,.14),transparent 36%),var(--panel)}
.project-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:auto}
.project-cat{font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--primary)}
.ext-arrow{font-size:1.2rem;color:var(--muted)}
.project-body{margin-top:auto}
.project-body h3{font-size:clamp(1.35rem,2.2vw,1.95rem);letter-spacing:-.035em;margin-bottom:8px}
.project-body p{color:var(--muted);font-size:.92rem;margin-bottom:0}
.visit-btn{margin-top:18px;font-size:.84rem;display:inline-flex;align-items:center;gap:4px;color:var(--text)}
.visit-btn span{color:var(--primary)}

/* ---------- expertise (icon cards) ---------- */
.tile-expertise{padding:24px;min-height:160px;display:flex;flex-direction:column;gap:14px;text-align:center;align-items:center;justify-content:center}
.tile-expertise:hover{transform:translateY(-5px);border-color:rgba(59,109,240,.3);box-shadow:var(--shadow-lift)}
.tile-expertise h3{font-size:1rem;font-family:var(--font-display);margin:0}
.exp-icon{
  display:inline-grid;place-items:center;width:52px;height:52px;border-radius:15px;
  background:var(--primary-soft);color:var(--primary);
}
.exp-icon.accent-teal{background:var(--teal-soft);color:var(--teal)}
.exp-icon.accent-violet{background:var(--violet-soft);color:var(--violet)}
.exp-icon.accent-amber{background:var(--amber-soft);color:var(--amber)}
.exp-icon.accent-green{background:var(--green-soft);color:var(--green)}

/* ---------- philosophy ---------- */
.philosophy-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:14px;
}
.phil-item{
  border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--panel);
  padding:28px 22px;box-shadow:var(--shadow);text-align:center;
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.phil-item:hover{transform:translateY(-4px);border-color:rgba(59,109,240,.3)}
.phil-num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;
  background:var(--primary-soft);color:var(--primary);font-weight:800;font-size:.8rem;
  margin-bottom:14px;font-family:var(--font-display);
}
.phil-item p{margin:0;font-size:.92rem;font-weight:600;color:var(--muted);line-height:1.5}

/* ---------- timeline ---------- */
.timeline{
  position:relative;padding-left:50px;
}
.timeline::before{
  content:"";position:absolute;left:18px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(var(--primary),var(--teal));border-radius:2px;
}
.tl-item{position:relative;padding-bottom:44px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-38px;top:6px;width:14px;height:14px;
  border-radius:50%;background:var(--primary);border:3px solid var(--bg);
  box-shadow:0 0 0 2px var(--primary),0 0 20px rgba(59,109,240,.4);
}
.tl-year{
  font-family:var(--font-display);font-weight:800;font-size:1.6rem;
  color:var(--primary);letter-spacing:-.03em;margin-bottom:6px;
}
.tl-content h3{font-size:1.15rem;margin-bottom:6px}
.tl-content p{color:var(--muted);font-size:.92rem;margin:0;max-width:560px}

/* ---------- contact ---------- */
.contact-section{padding:20px 0 70px}
.contact-actions-tile{display:flex;flex-direction:column;justify-content:center}
.contact-actions{display:flex;flex-direction:column;gap:10px}
.social-row{display:flex;gap:22px;justify-content:flex-end;align-items:center;padding:20px 6px;color:var(--muted);font-size:.82rem}
.social-row a:hover{color:var(--text)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);padding:32px 0 44px;display:flex;justify-content:space-between;align-items:center;gap:24px;font-size:.8rem;color:var(--muted)}
.site-footer>div{display:flex;flex-direction:column;gap:2px}
.site-footer strong{color:var(--text);font-family:var(--font-display)}
.footer-loc{font-size:.75rem}
.site-footer p{margin:0}

/* ---------- whatsapp fab ---------- */
.whatsapp-fab{
  position:fixed;bottom:28px;right:28px;z-index:99;
  width:60px;height:60px;border-radius:50%;
  background:#25D366;color:#fff;
  display:grid;place-items:center;
  box-shadow:0 6px 24px rgba(37,211,102,.4);
  transition:transform .2s,box-shadow .2s;
}
.whatsapp-fab:hover{transform:scale(1.08);box-shadow:0 8px 32px rgba(37,211,102,.55)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:1080px){
  .hero-section{flex-direction:column;text-align:center;gap:36px;padding-top:120px}
  .hero-content{max-width:100%}
  .hero-sub{margin-inline:auto}
  .eyebrow,.cta-row{justify-content:center}
  .hero-visual{flex:none;width:100%;max-width:420px}
  .span-7,.span-5{grid-column:span 6}
  .tile-project.featured{grid-column:span 12;grid-row:span 1;min-height:280px}
  .projects-bento .tile-project:not(.featured){grid-column:span 6}
  .expertise-bento .tile-expertise{grid-column:span 3}
  .philosophy-grid{grid-template-columns:repeat(3,1fr)}
}

@media(max-width:900px){
  .desktop-nav,.header-actions>.button-small{display:none}
  .menu-button{display:block}
  .site-header.menu-open .mobile-menu{display:flex}
  .mobile-menu{position:absolute;top:82px;left:0;right:0;padding:14px;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:var(--shadow);flex-direction:column}
  .mobile-menu a{padding:12px 10px;border-bottom:1px solid var(--line);font-weight:600}
  .mobile-menu a:last-child{border:0}
  .hero-section{min-height:auto;padding-top:110px;padding-bottom:26px}
  .cta-row{width:100%}
  .cta-row .button{flex:1}
  .philosophy-grid{grid-template-columns:repeat(2,1fr)}
  .philosophy-grid .phil-item:last-child{grid-column:span 2}
}

@media(max-width:640px){
  .section-shell,.hero-section{width:min(100% - 26px,1280px)}
  .site-header{width:calc(100% - 20px);top:10px;height:64px}
  .monogram{width:39px;height:39px}
  h1{font-size:clamp(2rem,9vw,2.8rem)}
  .hero-section{padding-top:100px}
  .hero-visual{display:none}
  .cta-row{flex-direction:column}
  .cta-row .button{width:100%}
  .span-3,.span-4,.span-5,.span-7{grid-column:span 12}
  .projects-bento .tile-project{grid-column:span 12!important;grid-row:auto!important;min-height:auto}
  .expertise-bento .tile-expertise{grid-column:span 6}
  .philosophy-grid{grid-template-columns:1fr}
  .philosophy-grid .phil-item:last-child{grid-column:span 1}
  .content-section{padding:60px 0}
  .section-heading{margin-bottom:26px}
  .timeline{padding-left:42px}
  .tl-item::before{left:-30px}
  .timeline::before{left:12px}
  .social-row{justify-content:center;flex-wrap:wrap}
  .site-footer{flex-direction:column;text-align:center;padding-bottom:34px}
  .site-footer>div{align-items:center}
  .whatsapp-fab{bottom:20px;right:20px;width:54px;height:54px}
}

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