/* ==========================================================================
   mahinbinhasan.com — static site, no build step.
   Design language: editorial / studio. Self-hosted fonts, no CDN requests.
   ========================================================================== */

/* ---------------- Fonts ---------------- */
@font-face{font-family:'Manrope';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/manrope-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/manrope-latin-500-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/manrope-latin-600-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/manrope-latin-700-normal.woff2') format('woff2')}
@font-face{font-family:'Manrope';font-style:normal;font-weight:800;font-display:swap;src:url('fonts/manrope-latin-800-normal.woff2') format('woff2')}
@font-face{font-family:'Playfair Display';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/playfair-display-latin-600-normal.woff2') format('woff2')}
@font-face{font-family:'Playfair Display';font-style:italic;font-weight:600;font-display:swap;src:url('fonts/playfair-display-latin-600-italic.woff2') format('woff2')}
@font-face{font-family:'Playfair Display';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/playfair-display-latin-700-normal.woff2') format('woff2')}
@font-face{font-family:'DM Mono';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/dm-mono-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'DM Mono';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/dm-mono-latin-500-normal.woff2') format('woff2')}
/* Subset to the two glyphs of "বি" — 688 bytes */
@font-face{font-family:'Bangla Mark';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/bangla-mark.woff2') format('woff2');unicode-range:U+0980-09FF}

/* ---------------- Tokens ---------------- */
:root{
  --ink:#11201d;
  --paper:#f4f0e9;
  --paper-2:#e5ddd2;
  --acid:#d8f24a;
  --rust:#e45e31;      /* decorative only — dots, marks, large shapes */
  --rust-ink:#b03a14;  /* text-safe rust: 5.4:1 on paper */
  --quiet:#4f5f59;     /* text-safe muted: 5.0:1 on paper */
  --quiet-2:#42524c;
  --mono:'DM Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --serif:'Playfair Display','Iowan Old Style',Georgia,serif;
}

/* ---------------- Base ---------------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px;overflow-x:clip;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;overflow-x:clip}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3,p{margin-top:0}
em{font-family:var(--serif);font-style:italic;font-weight:600;letter-spacing:-.045em}
::selection{background:var(--acid);color:var(--ink)}
:focus-visible{outline:3px solid var(--rust-ink);outline-offset:3px;border-radius:2px}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

.skip-link{position:absolute;left:50%;top:0;transform:translate(-50%,-160%);z-index:60;background:var(--ink);color:var(--paper);padding:12px 20px;font:500 12px var(--mono);text-decoration:none;transition:transform .2s ease}
.skip-link:focus{transform:translate(-50%,0)}

.grain{position:fixed;inset:0;opacity:.18;pointer-events:none;z-index:10;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.26'/%3E%3C/svg%3E")}

.wrap{width:100%;max-width:1240px;margin-inline:auto;padding-inline:44px}

/* ---------------- Header ---------------- */
.nav{height:91px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #11201d22;position:relative;z-index:30}
.wordmark{font:700 24px var(--sans);letter-spacing:-1.5px;color:inherit;text-decoration:none}
.wordmark span{color:var(--rust)}
.nav nav{display:flex;gap:31px;margin-left:130px}
.nav nav a,.nav-contact,.text-link,.venture a,footer a{font:500 12px var(--mono);text-decoration:none}
.nav nav a{padding-bottom:3px;border-bottom:1px solid transparent}
.nav nav a:hover,.nav nav a.is-current{border-bottom-color:var(--ink)}
.nav-contact{border-bottom:1px solid var(--ink);padding-bottom:3px}
.nav-contact-mobile{display:none}
.nav-contact span,.text-link span,.big-email span{color:var(--rust-ink);font-size:18px;margin-left:5px}
.venture a span{color:inherit;font-size:18px;margin-left:5px;opacity:.75}

.nav-toggle{display:none;width:44px;height:44px;margin-right:-10px;padding:0;background:none;border:0;cursor:pointer;position:relative}
.nav-toggle span{position:absolute;left:11px;width:22px;height:2px;background:var(--ink);transition:transform .25s ease,opacity .2s ease}
.nav-toggle span:first-child{top:18px}
.nav-toggle span:last-child{top:25px}
.nav.open .nav-toggle span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav.open .nav-toggle span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

/* ---------------- Hero ---------------- */
.hero{min-height:650px;position:relative;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:60px}
.eyebrow,.kicker,.section-number,.venture-type,.year,.venture-index,.card-no{font:500 11px var(--mono);letter-spacing:.05em;text-transform:uppercase}
.eyebrow{display:flex;align-items:center;gap:9px;color:var(--quiet);margin-bottom:0}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--rust);display:inline-block;box-shadow:0 0 0 4px #e45e311f;flex:none}
h1{font-size:clamp(44px,6vw,84px);line-height:1.03;letter-spacing:-.075em;margin:25px 0;font-weight:800}
.lede{font-size:17px;line-height:1.7;max-width:500px;color:var(--quiet-2)}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:28px;margin-top:34px}
.button{background:var(--ink);color:#fff;text-decoration:none;padding:15px 18px;font:500 12px var(--mono);white-space:nowrap;transition:background .2s ease}
.button:hover{background:#1c332e}
.button span{color:var(--acid);font-size:18px;margin-left:13px}
.text-link{border-bottom:1px solid #11201d77;padding-bottom:4px;white-space:nowrap}

.hero-art{height:420px;position:relative;isolation:isolate}
.orbit{position:absolute;border:1px solid #11201d55;border-radius:50%;z-index:1;pointer-events:none}
.orbit-a{width:405px;height:405px;right:-104px;top:-95px}
.orbit-b{width:305px;height:305px;left:-91px;bottom:-66px}
.orbit-c{width:148px;height:485px;left:129px;top:-62px;transform:rotate(31deg);border-radius:50%}
.portrait-frame{position:absolute;z-index:2;inset:-78px -77px 0 -77px;display:flex;justify-content:center;align-items:flex-end}
.portrait-frame picture{display:contents}
.portrait-frame img{width:100%;height:100%;object-fit:contain;object-position:center bottom;transform:scale(1.03);filter:grayscale(1) contrast(1.11) drop-shadow(11px 13px 0 rgba(17,32,29,.14));mix-blend-mode:multiply}
.portrait-frame:after{content:'MAHIN BIN HASAN';position:absolute;right:49px;top:84px;writing-mode:vertical-rl;font:500 9px var(--mono);letter-spacing:.12em;color:var(--ink)}
.hero-art:before{content:'';position:absolute;inset:0;background:var(--acid);border-radius:50% 50% 4px 4px;z-index:0}
.hero-art:after{content:'';position:absolute;z-index:3;left:0;right:0;bottom:0;height:50px;background:var(--ink)}
.art-caption{position:absolute;z-index:4;bottom:16px;left:17px;font:500 11px/1.5 var(--mono);letter-spacing:.035em;text-transform:uppercase;white-space:nowrap;color:#fff;margin:0}
.art-caption span{color:var(--acid);margin-left:7px}

.hero-bottom{position:absolute;left:44px;right:44px;bottom:27px;display:flex;align-items:center;gap:14px;font:500 10px var(--mono);text-transform:uppercase;color:var(--quiet)}
.line{height:1px;background:#11201d44;flex:1}

/* ---------------- Section furniture ---------------- */
.section-number{color:var(--rust-ink);margin-bottom:16px}
.kicker{color:#4c625c;margin-bottom:12px}
.manifesto h2,.section-heading h2,.story h2,.now h2,.field-notes h2{font-size:clamp(32px,4.1vw,59px);line-height:1.1;letter-spacing:-.065em;margin:0}

.manifesto{display:grid;grid-template-columns:1fr 4fr 2.6fr;gap:30px;padding-top:120px;padding-bottom:130px;border-top:1px solid #11201d22}
.manifesto-copy{line-height:1.75;color:var(--quiet-2);align-self:end;margin:0}

/* ---------------- Ventures ---------------- */
.ventures{padding-bottom:135px}
.section-heading{display:grid;grid-template-columns:1fr 1.7fr 1fr;gap:25px;align-items:end;margin-bottom:45px}
.section-heading>p{font-size:14px;line-height:1.7;color:var(--quiet);margin:0}

.venture-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.venture{min-height:385px;padding:25px;position:relative;display:flex;flex-direction:column;overflow:hidden}
.card-no{position:absolute;right:23px;top:22px;opacity:.7}
.venture-mark{font:700 80px/1 var(--sans);letter-spacing:-.1em;margin-top:35px}
.mark-bangla{font-family:'Bangla Mark',var(--serif);letter-spacing:0;font-size:70px;line-height:1.2}
.venture-detail{margin-top:auto;max-width:350px}
.venture-wide{grid-column:1/-1;min-height:0;padding:34px 40px;display:grid;grid-template-columns:auto 1fr;align-items:center;gap:44px}
.venture-wide .venture-index{position:absolute;left:40px;top:22px}
.venture-wide .venture-mark{margin:0;font-size:108px}
.venture-wide .venture-detail{margin-top:0;max-width:62ch}
.venture-wide .card-no{right:40px}
.venture-type{margin-bottom:8px;opacity:.75}
.venture h3{font-size:30px;letter-spacing:-.06em;margin:0 0 8px;font-weight:700}
.venture-detail>p:not(.venture-type){font-size:14px;line-height:1.6;margin-bottom:20px}
.venture a{border-bottom:1px solid currentColor;padding-bottom:4px;display:inline-block}

/* Flagship card */
.venture-lead{grid-column:1/-1;min-height:0;padding:38px 40px 34px}
.lead-status{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-bottom:26px}
.venture-lead .venture-index{color:var(--acid)}
.status-pill{display:inline-flex;align-items:center;gap:8px;font:500 10px var(--mono);letter-spacing:.09em;text-transform:uppercase;border:1px solid #f0ece53d;border-radius:99px;padding:6px 12px;color:#ded8ce}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--acid);flex:none;animation:beat 2.4s ease-out infinite}
@keyframes beat{0%{box-shadow:0 0 0 0 #d8f24a99}70%{box-shadow:0 0 0 7px #d8f24a00}100%{box-shadow:0 0 0 0 #d8f24a00}}
.lead-cta{display:inline-block;margin-top:22px;font:500 12px var(--mono);text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:4px;color:var(--acid)}
.lead-cta span{margin-left:6px;font-size:18px}
.lead-body{display:grid;grid-template-columns:1.75fr 1fr;gap:46px;align-items:start}
.venture-lead h3{font-size:clamp(38px,4.4vw,58px);letter-spacing:-.07em;margin:0 0 18px}
.lead-desc{font-size:15px;line-height:1.72;margin-bottom:16px;max-width:60ch;opacity:.92}
.lead-desc:last-child{margin-bottom:0}
.lead-chips{list-style:none;margin:6px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.lead-chips li{font:500 11px var(--mono);text-transform:uppercase;letter-spacing:.05em;border:1px solid #f5f0e93d;border-radius:99px;padding:8px 14px}
.lead-mark{position:absolute;right:26px;bottom:-26px;font-size:190px;line-height:1;opacity:.13;margin:0;pointer-events:none}

/* Venture palettes */
.vigitrip{background:var(--ink);color:#f0ece5}
.vigitrip .venture-type{color:var(--acid);opacity:1}
.vigitrip .lead-mark{color:var(--acid)}
.viper{background:#d96d3d;color:#1c201c}
.viper .venture-mark{color:#ffe4bd}
.khawao{background:#1f4d40;color:#eef3e2}
.khawao .venture-mark{color:var(--acid)}
.boloy{background:#192c4a;color:#edf2ff}
.boloy .venture-mark{color:#8fb9ff}
.prokhor{background:#e7ded3;color:var(--ink)}
.prokhor .venture-mark{color:var(--rust-ink)}
.bimukto{background:#dae3dc;color:var(--ink)}
.bimukto .venture-mark{color:#1f4d40}
.pos{background:#2e3330;color:#eceee9}
.pos .venture-mark{color:var(--acid)}
.porokh{background:var(--acid);color:var(--ink)}
.porokh .venture-mark{color:#2c5115}
.porokh .venture-type{opacity:.85}
.amanah{background:#ecdcc4;color:var(--ink)}
.amanah .venture-mark{color:#7d5214}

/* ---------------- Field notes ---------------- */
.field-notes{display:grid;grid-template-columns:1fr 1.8fr;gap:70px;padding-bottom:125px}
.notes-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.notes-grid article{min-height:260px;padding:25px;background:var(--paper-2);border-top:3px solid var(--ink)}
.notes-grid article+article{background:#dae3dc}
.note-mark{font-size:31px;display:block;margin-bottom:45px;color:var(--rust-ink)}
.notes-grid h3{font-size:24px;letter-spacing:-.05em;margin:0 0 10px;font-weight:700}
.notes-grid article>p:last-child{font-size:13px;line-height:1.7;color:var(--quiet-2);margin:0}

/* ---------------- Story ---------------- */
.story{background:var(--ink);color:#f5f0e9;padding:128px 0}
.story-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:90px}
.story .kicker{color:#9cb4ac}
.story .section-number{color:var(--acid)}
.story-copy{padding-top:43px;max-width:520px}
.story-copy p{font-size:20px;line-height:1.65;color:#d7e2dd}
.story-copy p+p{font-size:15px;color:#b3c7bf;margin-top:25px}
.capabilities{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}
.capabilities span{border:1px solid #f4f0e955;padding:8px 10px;border-radius:99px;font:400 10px var(--mono);text-transform:uppercase;color:#e4ece8}

/* ---------------- Journey ---------------- */
.now{padding-top:125px;padding-bottom:132px;display:grid;grid-template-columns:1fr 1.8fr;gap:70px}
.now-title,.field-notes-head{position:sticky;top:40px;align-self:start}
.now-items{border-top:1px solid #11201d33}
.now-items article{display:grid;grid-template-columns:24px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid #11201d33}
.status-dot{width:7px;height:7px;margin-top:7px;border-radius:50%;background:var(--rust);box-shadow:0 0 0 4px #e45e3122}
.year{color:var(--quiet);margin-bottom:8px}
.now h3{font-size:21px;letter-spacing:-.045em;margin-bottom:8px;font-weight:700}
.now-items p:last-child{font-size:14px;line-height:1.65;color:var(--quiet-2);margin:0}

/* ---------------- Contact ---------------- */
.contact{background:var(--acid);padding:112px 0 118px}
.contact .kicker{color:#2f4a1f}
.contact h2{font-size:clamp(42px,6vw,83px);line-height:1.02;letter-spacing:-.075em;margin-bottom:42px}
.big-email{display:inline-block;font-size:clamp(18px,2.4vw,31px);font-weight:600;letter-spacing:-.04em;text-decoration:none;border-bottom:2px solid var(--ink);padding-bottom:7px;overflow-wrap:anywhere}
.contact-note{margin:34px 0 0;max-width:46ch;font-size:15px;line-height:1.7;color:#2b3f22}

/* ---------------- Footer ---------------- */
footer{min-height:105px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
footer p{font:400 10px var(--mono);margin:0;color:var(--quiet)}
footer div{display:flex;gap:17px}
footer a{border-bottom:1px solid #11201d55;padding-bottom:3px}

/* ---------------- Motion ---------------- */
.reveal{animation:enter .8s both}
@keyframes enter{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* ---------------- Tablet ---------------- */
@media(max-width:1080px){
  .manifesto{grid-template-columns:1fr 3fr;gap:24px}
  .manifesto-copy{grid-column:2}
  .section-heading{grid-template-columns:1fr 1.4fr}
  .section-heading>p{grid-column:2}
  .lead-body{grid-template-columns:1fr;gap:26px}
  .lead-chips{flex-direction:row;flex-wrap:wrap}
  .lead-chips li{text-align:left}
  .story-grid,.now,.field-notes{gap:44px}
}

/* ---------------- Mobile ---------------- */
@media(max-width:760px){
  .wrap{padding-inline:22px}
  .nav{height:75px}
  .nav-toggle{display:block}
  .nav-contact{display:none}
  .nav nav{
    position:absolute;left:0;right:0;top:100%;margin:0;
    display:flex;flex-direction:column;gap:0;
    background:var(--paper);border-bottom:1px solid #11201d22;
    padding:6px 22px 18px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .nav.open nav{opacity:1;visibility:visible;transform:none;box-shadow:0 20px 34px -20px rgba(17,32,29,.45)}
  .nav nav a{padding:14px 0;border-bottom:1px solid #11201d1a;font-size:13px}
  .nav nav a:last-child{border-bottom:0}
  .nav-contact-mobile{display:block;color:var(--rust-ink)}

  .hero{min-height:auto;padding-top:60px;padding-bottom:65px;display:block}
  .hero-bottom{display:none}
  h1{margin:20px 0}
  .lede{font-size:15px}
  .hero-art{height:315px;margin-top:64px;overflow:hidden}
  .orbit-a{width:250px;height:250px;right:-40px;top:-40px}
  .orbit-b{width:170px;height:170px;left:-40px;bottom:-30px}
  .orbit-c{display:none}
  .portrait-frame{inset:-34px 0 0 0}
  .portrait-frame img{transform:none}
  .portrait-frame:after{right:14px;top:44px;font-size:8px}
  .hero-art:after{height:42px}
  .art-caption{left:12px;bottom:13px;font-size:9px}

  .manifesto,.section-heading,.field-notes,.story-grid,.now{display:block;padding-top:75px;padding-bottom:75px}
  .manifesto-copy{margin-top:28px}
  .section-heading{padding:0;margin-bottom:34px}
  .section-heading>p{margin-top:20px}
  .section-heading h2{margin-top:25px}
  .venture-list,.notes-grid{grid-template-columns:1fr}
  .now-title,.field-notes-head{position:static}
  .venture-wide{display:flex;flex-direction:column;padding:25px;min-height:330px}
  .venture-wide .venture-index{position:static}
  .venture-wide .venture-mark{margin-top:35px;font-size:80px}
  .venture-wide .venture-detail{margin-top:auto;max-width:350px}
  .venture-wide .card-no{right:23px}
  .venture{min-height:330px}
  .venture-lead{padding:26px 22px 30px}
  .venture-lead .venture-index{margin-bottom:18px}
  .lead-mark{font-size:120px;right:14px;bottom:-14px}
  .notes-grid{margin-top:38px}
  .notes-grid article{min-height:230px}
  .field-notes{padding-top:0}
  .story{padding:75px 0}
  .story-copy{padding-top:28px}
  .story-copy p{font-size:17px}
  .now{padding-top:0}
  .now-items{margin-top:42px}
  .contact{padding:75px 0}
  .contact h2{margin-bottom:32px}
  footer{padding-top:28px;padding-bottom:28px;gap:17px;align-items:flex-start}
  footer p{order:3;width:100%}
}

/* ---------------- Print ---------------- */
@media print{
  .grain,.nav-toggle,.skip-link,.hero-bottom,.orbit{display:none!important}
  body{background:#fff;color:#000}
  .story,.contact,.venture{background:#fff!important;color:#000!important}
  a[href^='http']::after,a[href^='mailto']::after{content:' (' attr(href) ')';font-size:.85em}
}