/* Nawaraj Khanal — portfolio styles
   Fonts: Newsreader (headings) + Hanken Grotesk (text), self-hosted.
   Every text/background pair below passes WCAG AA (4.5:1 for body text). */

@font-face{font-family:"Hanken Grotesk";font-weight:400;font-style:normal;font-display:swap;src:url(../assets/fonts/hanken-grotesk-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Hanken Grotesk";font-weight:500;font-style:normal;font-display:swap;src:url(../assets/fonts/hanken-grotesk-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Hanken Grotesk";font-weight:600;font-style:normal;font-display:swap;src:url(../assets/fonts/hanken-grotesk-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Hanken Grotesk";font-weight:700;font-style:normal;font-display:swap;src:url(../assets/fonts/hanken-grotesk-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Newsreader";font-weight:500;font-style:normal;font-display:swap;src:url(../assets/fonts/newsreader-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Newsreader";font-weight:600;font-style:normal;font-display:swap;src:url(../assets/fonts/newsreader-latin-600-normal.woff2) format("woff2")}

:root{
  --bg:#f5f7f4; --surface:#fff; --tint:#e6efe9;
  --ink:#14231c; --muted:#4b5b53;
  --line:#d5ddd7; --line-strong:#7f9187;
  --forest:#1d5a43; --forest-deep:#0f3a2b;
  --deep:#0e2a20; --on-deep:#e9f1ec; --on-deep-muted:#b4c7bc; --mint:#a6e3bf;
  --signal:#b83a22; --error:#a32d17;
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --max:1120px; --gutter:clamp(1.25rem,4vw,2.5rem);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:5.5rem}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.65 var(--sans);-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
img,svg{display:block;max-width:100%;height:auto}
a{color:var(--forest);text-underline-offset:.2em;text-decoration-thickness:1px}
a:hover{color:var(--forest-deep);text-decoration-thickness:2px}
button,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--forest);outline-offset:3px;border-radius:2px}
.on-deep :focus-visible,.site-footer :focus-visible{outline-color:var(--mint)}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.02em;line-height:1.12;margin:0;text-wrap:balance}
h1{font-size:clamp(2.5rem,1.5rem + 4.6vw,4.5rem);line-height:1.04;letter-spacing:-.03em}
h2{font-size:clamp(1.9rem,1.3rem + 2.2vw,2.9rem)}
h3{font-size:clamp(1.35rem,1.15rem + .8vw,1.75rem);line-height:1.2}
p{margin:0 0 1em;text-wrap:pretty}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.container{width:min(100% - 2*var(--gutter),var(--max));margin-inline:auto}
.skip-link{position:absolute;left:-9999px;top:.5rem;z-index:100;background:var(--ink);color:#fff;padding:.6rem 1rem;border-radius:.4rem}
.skip-link:focus{left:.75rem}
a[target="_blank"]::after{content:"\2197";display:inline-block;margin-left:.25em;font-size:.9em;text-decoration:none}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(245,247,244,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-row{min-height:4.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.75rem;color:var(--ink);text-decoration:none}
.brand-mark{display:grid;place-items:center;width:2.5rem;height:2.5rem;border-radius:.6rem;background:var(--forest);color:#fff;font:600 1rem var(--serif);letter-spacing:.02em}
.brand-name{display:block;font-weight:700;font-size:1.05rem;line-height:1.2;white-space:nowrap}
.brand-name small{display:block;font-weight:500;font-size:.875rem;color:var(--muted)}
.site-nav{display:flex;align-items:center;gap:.25rem}
.site-nav a{display:inline-flex;align-items:center;min-height:2.75rem;padding:.25rem .85rem;color:var(--ink);font-weight:600;font-size:1rem;text-decoration:none;border-bottom:2px solid transparent}
.site-nav a:hover{color:var(--forest)}
.site-nav a[aria-current="page"]{color:var(--forest);border-bottom-color:var(--forest)}
.site-nav .nav-contact{margin-left:.5rem;padding-inline:1.1rem;background:var(--forest);color:#fff;border-radius:.5rem;border-bottom:0}
.site-nav .nav-contact:hover,.site-nav .nav-contact[aria-current="page"]{background:var(--forest-deep);color:#fff}
.menu-toggle{display:none;align-items:center;gap:.6rem;min-height:2.75rem;padding:.4rem .9rem;border:1.5px solid var(--line-strong);border-radius:.5rem;background:transparent;font-weight:600;cursor:pointer}
.menu-icon{position:relative;width:1.1rem;height:2px;background:currentColor}
.menu-icon::before,.menu-icon::after{content:"";position:absolute;left:0;width:100%;height:2px;background:currentColor;transition:transform .2s}
.menu-icon::before{top:-6px}.menu-icon::after{top:6px}
.menu-toggle[aria-expanded="true"] .menu-icon{background:transparent}
.menu-toggle[aria-expanded="true"] .menu-icon::before{transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] .menu-icon::after{transform:translateY(-6px) rotate(-45deg)}

/* Buttons and links */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:3rem;padding:.7rem 1.4rem;border:1.5px solid var(--forest);border-radius:.5rem;font-weight:700;font-size:1rem;line-height:1.2;text-decoration:none;cursor:pointer;transition:background .15s,color .15s}
.btn-primary{background:var(--forest);color:#fff}
.btn-primary:hover{background:var(--forest-deep);border-color:var(--forest-deep);color:#fff}
.btn-secondary{background:transparent;color:var(--forest)}
.btn-secondary:hover{background:var(--tint);color:var(--forest-deep)}
.on-deep .btn-primary,.site-footer .btn-primary{background:var(--mint);border-color:var(--mint);color:var(--deep)}
.on-deep .btn-primary:hover,.site-footer .btn-primary:hover{background:#fff;border-color:#fff;color:var(--deep)}
.btn-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.75rem}
.link{font-weight:700}
.on-deep a:not(.btn){color:var(--mint)}
.on-deep a:not(.btn):hover{color:#fff}

/* Hero */
.hero{padding-block:clamp(2.5rem,7vw,5.5rem)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(2rem,5vw,4.5rem);align-items:center}
.lead{font-size:clamp(1.125rem,1.05rem + .35vw,1.3rem);line-height:1.65;color:var(--muted);max-width:36em;margin:1.5rem 0 0}
.hero-note{margin:1.75rem 0 0;color:var(--muted);font-size:.9375rem}
.graph{margin:0;padding:1rem;background:var(--surface);border:1px solid var(--line);border-radius:1.25rem}
.graph svg{width:100%}
.graph figcaption{display:flex;flex-wrap:wrap;gap:.35rem 1.25rem;padding:.75rem .5rem .25rem;font-size:.9375rem;color:var(--muted)}
.graph figcaption span{display:inline-flex;align-items:center;gap:.5rem}
.dot{width:.75rem;height:.75rem;border-radius:50%;background:var(--forest)}
.dot.flag{background:var(--signal)}
.g-edge{stroke:#b3c2b9;stroke-width:1.5}
.g-edge.flag{stroke:var(--signal);stroke-width:2.25}
.g-node{fill:var(--forest)}
.g-node.hub{fill:var(--forest-deep)}
.g-node.flag{fill:var(--signal)}
.g-ring{fill:none;stroke:var(--signal);stroke-width:2;stroke-dasharray:6 6}
.g-edge{stroke-dasharray:1;stroke-dashoffset:1;animation:g-draw .9s ease-out forwards;animation-delay:var(--d,0s)}
.g-node,.g-ring{opacity:0;animation:g-show .45s ease-out forwards;animation-delay:var(--d,0s)}
.g-ring{stroke-dasharray:6 6}
@keyframes g-draw{to{stroke-dashoffset:0}}
@keyframes g-show{to{opacity:1}}

/* Sections */
.section{padding-block:clamp(3rem,7vw,5.5rem)}
.section-deep{background:var(--deep);color:var(--on-deep)}
.section-deep h2,.section-deep h3{color:#fff}
.section-tint{background:var(--tint)}
.section-head{max-width:40rem;margin-bottom:clamp(1.75rem,4vw,3rem)}
.section-head p{color:var(--muted);margin:1rem 0 0}
.section-deep .section-head p{color:var(--on-deep-muted)}
.split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(1.75rem,6vw,5rem);align-items:start}
.prose p{max-width:38em;color:var(--muted)}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink)}

/* Feature project (on dark) */
.feature{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:start}
.feature p{color:var(--on-deep-muted);max-width:36em}
.facts{margin:0;border-top:1px solid rgba(233,241,236,.28)}
.facts>div{display:grid;grid-template-columns:7.5rem minmax(0,1fr);gap:1rem;padding:.9rem 0;border-bottom:1px solid rgba(233,241,236,.28)}
.facts dt{font-weight:600;font-size:.9375rem;color:var(--on-deep-muted)}
.facts dd{margin:0}
.light .facts,.light .facts>div{border-color:var(--line)}
.light .facts dt{color:var(--muted)}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem;margin-top:clamp(1.5rem,3vw,2.5rem)}
.card{display:flex;flex-direction:column;gap:.75rem;padding:1.5rem;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:1rem}
.card p{margin:0;color:var(--muted);font-size:1rem}
.card .link{margin-top:auto;padding-top:.5rem}
.card .badge{align-self:flex-start}
.badge{display:inline-block;padding:.2rem .7rem;border-radius:999px;background:var(--tint);color:var(--forest-deep);font-weight:600;font-size:.875rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:0;padding:0;list-style:none}
.chips li{padding:.25rem .75rem;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink);font-size:.9rem;font-weight:500}
.section-deep .chips li{background:transparent;border-color:rgba(233,241,236,.35);color:var(--on-deep)}

/* Page hero and case studies */
.page-hero{padding-block:clamp(2.5rem,6vw,4.5rem) clamp(2rem,4vw,3rem);border-bottom:1px solid var(--line)}
.page-hero h1{max-width:16ch;font-size:clamp(2.4rem,1.4rem + 4.2vw,4.25rem)}
.page-hero.wide h1{max-width:20ch}
.page-body{padding-block:clamp(2.25rem,5vw,4rem) clamp(3.5rem,8vw,6rem)}
.case{display:grid;grid-template-columns:minmax(0,.38fr) minmax(0,.62fr);gap:1.5rem clamp(1.5rem,5vw,4rem);padding-block:clamp(2rem,4vw,3rem);border-top:1px solid var(--line)}
.case:first-child{border-top:0;padding-top:0}
.case-meta{display:flex;flex-direction:column;align-items:flex-start;gap:.9rem}
.case dl{margin:0;display:grid;gap:1.15rem}
.case dt{font-weight:700;font-size:.9375rem;margin-bottom:.15rem}
.case dd{margin:0;color:var(--muted)}
.case dd strong{color:var(--ink)}
.note{font-size:.9375rem;color:var(--muted)}

/* About */
.skills{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.75rem 2.5rem}
.skills h3{font-family:var(--sans);font-size:1rem;font-weight:700;letter-spacing:0;margin-bottom:.75rem}
.principles{display:grid;gap:1.5rem;margin:0;padding:0;list-style:none}
.principles li{padding-left:1.25rem;border-left:3px solid var(--forest)}
.principles h3{font-family:var(--sans);font-size:1.0625rem;font-weight:700;letter-spacing:0;margin-bottom:.25rem}
.principles p{margin:0;color:var(--muted)}
.steps{display:grid;gap:1.5rem;margin:0;padding:0;list-style:none;counter-reset:step}
.steps li{position:relative;padding-left:3.25rem;counter-increment:step}
.steps li::before{content:counter(step);position:absolute;left:0;top:0;display:grid;place-items:center;width:2.25rem;height:2.25rem;border-radius:50%;background:var(--forest);color:#fff;font-weight:700;font-size:.95rem}
.steps h3{font-family:var(--sans);font-size:1.0625rem;font-weight:700;letter-spacing:0;margin-bottom:.25rem}
.steps p{margin:0;color:var(--muted)}
.callout{padding:clamp(1.25rem,3vw,2rem);background:var(--tint);border-left:4px solid var(--forest);border-radius:.25rem .75rem .75rem .25rem}
.callout p{margin:0 0 .5rem;max-width:42em}
.stack{display:grid;gap:clamp(2.5rem,6vw,4rem)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(2rem,6vw,5rem);align-items:start}
.contact-list{margin:1.5rem 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.contact-list li{display:grid;grid-template-columns:5.5rem minmax(0,1fr);gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--line)}
.contact-list span{font-weight:600;color:var(--muted);font-size:.9375rem}
.contact-form{padding:clamp(1.25rem,3vw,2rem);background:var(--surface);border:1px solid var(--line);border-radius:1rem}
.field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1.15rem}
.field label{font-weight:600;font-size:.9375rem}
.field input,.field textarea{width:100%;min-height:3rem;padding:.7rem .85rem;border:1.5px solid var(--line-strong);border-radius:.5rem;background:#fff;font-size:1rem}
.field textarea{min-height:9rem;resize:vertical}
.field input:focus,.field textarea:focus{outline:3px solid var(--forest);outline-offset:1px;border-color:var(--forest)}
.field ::placeholder{color:#5f6f66;opacity:1}
.form-submit:disabled{opacity:.6;cursor:wait}
.form-status{min-height:1.75rem;margin:1rem 0 0;font-size:.9375rem;font-weight:600;color:var(--forest)}
.form-status.error{color:var(--error)}

/* Footer */
.site-footer{background:var(--deep);color:var(--on-deep)}
.footer-cta{padding-block:clamp(2.5rem,6vw,4rem);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.5rem 3rem;border-bottom:1px solid rgba(233,241,236,.22)}
.footer-cta h2{color:#fff;font-size:clamp(1.6rem,1.2rem + 1.6vw,2.4rem);max-width:20ch}
.footer-cta p{margin:.5rem 0 0;color:var(--on-deep-muted)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem 2rem;padding-block:1.25rem 1.75rem;font-size:.9375rem;color:var(--on-deep-muted)}
.footer-links{display:flex;flex-wrap:wrap;gap:0 .5rem}
.footer-links a{display:inline-flex;align-items:center;min-height:2.75rem;padding:0 .5rem;color:var(--on-deep);font-weight:600}
.footer-links a:hover{color:var(--mint)}

/* 404 */
.not-found{min-height:55vh;display:grid;align-content:center;padding-block:4rem}

/* Tablet and phone */
@media (max-width:64rem){
  .feature{grid-template-columns:1fr}
  .split,.contact-grid,.case{grid-template-columns:1fr}
  .case-meta{flex-direction:row;flex-wrap:wrap;align-items:center}
}
@media (max-width:52rem){
  .hero-grid{grid-template-columns:1fr}
  .graph{max-width:34rem}
  .menu-toggle{display:inline-flex}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:.5rem var(--gutter) 1.25rem;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(14,42,32,.08)}
  .site-nav.open{display:flex}
  .site-nav a{min-height:3rem;padding-inline:.9rem;border-bottom:1px solid var(--line)}
  .site-nav a[aria-current="page"]{border-bottom-color:var(--line);box-shadow:inset 3px 0 0 var(--forest)}
  .site-nav .nav-contact{margin:1rem 0 0;justify-content:center;border:0}
  .cards{grid-template-columns:1fr}
}
@media (max-width:36rem){
  .brand-name{font-size:1rem}
  .brand-name small{display:none}
  .skills{grid-template-columns:1fr}
  .facts>div,.contact-list li{grid-template-columns:1fr;gap:.15rem}
  .btn-row .btn{flex:1 1 100%}
  .footer-cta .btn{width:100%}
  .graph{padding:.65rem}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important}
  .g-edge,.g-node,.g-ring{animation:none!important;opacity:1;stroke-dashoffset:0}
}