/* ══ Om Sai Corporation — homepage
   Palette sampled from the OSG company profile deck.
   ═══════════════════════════════════════════════════ */

:root{
  --paper:      #F1F2F5;
  --lift:       #FFFFFF;
  --ink:        #15172C;
  --ink-2:      #565A72;
  --ink-3:      #8A8EA3;
  --rule:       #DCDEE6;
  --rule-lt:    #E7E8EE;
  --red:        #D32326;
  --red-deep:   #A1141B;
  --navy:       #24264C; /* deprecated: navy minimized per client direction, kept only for reference */

  --wrap: 1240px;
  --gut: 40px;
  --spine: 46px;

  --disp: "Archivo", system-ui, sans-serif;
  --body: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{overflow-x:hidden;max-width:100%}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font:400 16.5px/1.62 var(--body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit}

.skip{position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}

:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:2px}

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

/* ── Type roles ─────────────────────────────────── */
h1,h2,h3{font-family:var(--disp);font-variation-settings:"wdth" 112;margin:0;font-weight:600}
h1{
  font-size:clamp(46px,7.6vw,104px); line-height:.95; letter-spacing:-.038em;
  font-weight:500; margin:0 0 56px;
}
h1 .dot{color:var(--red)}
h2{font-size:clamp(27px,3.4vw,42px);line-height:1.08;letter-spacing:-.032em;margin:0 0 16px}
h3{font-size:19px;line-height:1.3;letter-spacing:-.022em}

.label{
  font:500 11px/1 var(--mono); letter-spacing:.14em; text-transform:uppercase;
  color:var(--red); margin:0 0 18px;
}
.eyebrow{
  font:400 11.5px/1 var(--mono); letter-spacing:.16em; text-transform:uppercase;
  color:var(--ink-3); margin:0 0 34px;
}
.lede{font-size:19.5px;line-height:1.56;color:var(--ink-2);margin:0;max-width:46ch}
.sec-sub{color:var(--ink-2);margin:0;max-width:60ch;font-size:17px}
.sec-head{margin-bottom:56px}

/* ── Buttons ────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font:500 14.5px/1 var(--body); letter-spacing:.005em;
  padding:15px 26px; border-radius:2px; text-decoration:none;
  border:1px solid transparent; cursor:pointer;
  transition:background .18s, color .18s, border-color .18s, transform .18s;
}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:var(--red-deep)}
.btn-ghost{border-color:var(--rule);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);}

/* ── Nav ────────────────────────────────────────── */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(241,242,245,.82); backdrop-filter:blur(14px);
  border-bottom:1px solid transparent; transition:border-color .25s;
}
.nav.stuck{border-bottom-color:var(--rule)}
.nav-in{
  max-width:var(--wrap);margin:0 auto;padding:12px var(--gut);
  display:flex;align-items:center;gap:32px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.brand img{height:38px;width:auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-txt b{font:600 14.5px var(--disp);font-variation-settings:"wdth" 108;letter-spacing:-.02em}
.brand-txt i{font:400 10px var(--mono);font-style:normal;letter-spacing:.08em;color:var(--ink-3)}
.nav-links{display:flex;gap:30px}
.nav-links a{
  text-decoration:none;font-size:14.5px;color:var(--ink-2);
  padding:4px 0;border-bottom:1px solid transparent;transition:color .18s,border-color .18s;
}
.nav-links a:hover{color:var(--ink);border-bottom-color:var(--red)}
.nav-cta{padding:11px 20px;font-size:14px}
.burger{display:none;background:none;border:0;padding:10px;cursor:pointer}
.burger span{display:block;width:22px;height:1.5px;background:var(--ink);margin:5px 0;transition:transform .2s}

/* Left scroll-spine removed — it competed visually with the accordion's own
   red accent border and read as a stray line rather than an intentional element. */
#page{position:relative}

/* ── Reveal ─────────────────────────────────────── */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ── Hero ───────────────────────────────────────── */
.hero{padding:96px 0 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:56px;align-items:center}
.hero-left{display:flex;flex-direction:column;gap:30px;align-items:flex-start;max-width:560px}

/* ── Hero cube ──────────────────────────────────── */
.cube-stage{
  --cube: 190px;
  perspective:1000px; width:var(--cube); height:var(--cube); flex:none;
  margin:0 auto;
}
.cube{
  width:100%;height:100%;position:relative;transform-style:preserve-3d;
  animation:tumble 20s linear infinite;
}
.face{
  position:absolute;inset:0;
  background:var(--lift);border:1px solid var(--rule);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  box-sizing:border-box;backface-visibility:hidden;
}
.f-devices{transform:translateZ(calc(var(--cube) / 2))}
.f-software{transform:rotateY(180deg) translateZ(calc(var(--cube) / 2))}
.f-support{transform:rotateY(90deg) translateZ(calc(var(--cube) / 2))}
.f-mobility{transform:rotateY(-90deg) translateZ(calc(var(--cube) / 2))}
.f-security{transform:rotateX(90deg) translateZ(calc(var(--cube) / 2))}
.f-infra{transform:rotateX(-90deg) translateZ(calc(var(--cube) / 2))}
.face-badge{
  width:25%;aspect-ratio:1;min-width:40px;max-width:56px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.face-badge svg{width:44%;height:44%}
.face-lbl{font:500 12px var(--body);letter-spacing:.01em;color:var(--ink);text-align:center;padding:0 10px}
@keyframes tumble{
  0%{transform:rotateX(0deg) rotateY(0deg)}
  25%{transform:rotateX(90deg) rotateY(90deg)}
  50%{transform:rotateX(180deg) rotateY(180deg)}
  75%{transform:rotateX(270deg) rotateY(270deg)}
  100%{transform:rotateX(360deg) rotateY(360deg)}
}
@media (prefers-reduced-motion: reduce){
  .cube{animation:none;transform:rotateX(-14deg) rotateY(28deg)}
}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-idx{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.hero-idx li{
  display:flex;justify-content:space-between;gap:20px;align-items:baseline;
  padding:11px 0;border-bottom:1px solid var(--rule-lt);
}
.hero-idx a{font-size:15.5px;text-decoration:none;color:var(--ink);transition:color .18s}
.hero-idx li:hover a{color:var(--red)}
.hero-idx em{font:400 11px var(--mono);font-style:normal;letter-spacing:.1em;color:var(--ink-3)}

/* Client marquee — the hero's real thesis */
.marquee{margin-top:88px;padding:34px 0 30px;border-top:1px solid var(--rule);position:relative;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);}
.mq-track{display:flex;gap:14px;width:max-content;animation:slide 68s linear infinite}
.mq-track.rev{margin-top:14px;animation-duration:86s;animation-direction:reverse}
.marquee:hover .mq-track{animation-play-state:paused}
.mq-track img{
  height:44px;width:auto;min-width:118px;object-fit:contain;
  padding:11px 22px;background:var(--lift);border:1px solid var(--rule-lt);border-radius:3px;
  opacity:.92;transition:filter .25s,opacity .25s;
}
.mq-track img:hover{opacity:1;border-color:var(--rule)}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.mq-cap{
  max-width:var(--wrap);margin:26px auto 0;padding:0 var(--gut);
  font:400 11px var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--ink-3);
}

/* ── Industries ─────────────────────────────────── */
.ind-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ind-grid li{display:flex;flex-direction:column;border:1px solid var(--rule);border-radius:3px;overflow:hidden;background:var(--lift);height:auto}
.ind-photo{height:150px;background-size:cover;background-position:center;filter:saturate(.94)}
.ind-body{padding:18px 16px 28px}
.ind-body h3{font-size:15.5px;margin-bottom:8px}
.ind-body p{margin:0;font-size:13px;color:var(--ink-2);line-height:1.6}

/* ── Dark bands ─────────────────────────────────── */
.band-dark{
  --paper:#131315; --lift:#1C1C1F; --ink:#F5F5F4; --ink-2:#B8B8B7; --ink-3:#87878A;
  --rule:#39393D; --rule-lt:#232326;
  background:var(--paper); color:var(--ink);
}
.band-dark .btn-ghost{border-color:var(--rule)}
.band-dark .acc-icon{background:var(--lift)}
.band-dark .ind-grid li{background:var(--lift)}

/* ── Proof ──────────────────────────────────────── */
.proof{padding:80px 0 96px}
.figs{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);
  border-top:1px solid var(--ink);}
.figs li{padding:34px 22px 4px 0;border-right:1px solid var(--rule-lt)}
.figs li:last-child{border-right:0}
.figs b{
  display:block;font:500 clamp(38px,4.6vw,58px)/1.15 var(--disp);
  font-variation-settings:"wdth" 112;letter-spacing:-.04em;
  padding-top:.12em;
}
.figs sup{color:var(--red);font-size:.44em;top:-.72em;position:relative;font-weight:500}
.figs span{display:block;margin-top:10px;font-size:14px;color:var(--ink-2);max-width:16ch}

/* ── Sections shell ─────────────────────────────── */
.lob,.clients,.why,.contact,.event,.awards,.values,.news,.industries{padding:104px 0;border-top:1px solid var(--rule)}

/* ── Event ──────────────────────────────────────── */
.event-in{display:flex;justify-content:center}
.event-card{
  max-width:640px;width:100%;text-align:center;
  background:var(--lift);border:1px solid var(--rule);border-top:2.4px solid var(--red);
  border-radius:3px;padding:52px 48px;
}
.event-card .label{justify-content:center}
.event-card h2{margin-bottom:14px}
.event-card .sec-sub{margin:0 auto 30px;text-align:center}
.event-meta{
  display:flex;justify-content:center;gap:40px;margin-bottom:32px;
  padding-top:26px;border-top:1px solid var(--rule-lt);
}
.event-meta span{display:flex;flex-direction:column;gap:5px;font-size:14.5px;color:var(--ink)}
.event-meta b{font:400 10.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);font-weight:400}

/* ── Awards ─────────────────────────────────────── */
.award-shell{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.award-shell li{
  height:132px;background:var(--lift);border:1px dashed var(--rule);border-radius:3px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:0 14px;
}
.award-icon{
  width:44px;height:44px;flex:none;border-radius:50%;background:var(--paper);
  border:1px solid var(--rule-lt);color:var(--red);
  display:flex;align-items:center;justify-content:center;
}
.award-icon svg{width:21px;height:21px}
.award-lbl{font:400 12.5px var(--body);color:var(--ink-2);text-align:center;line-height:1.4}

/* ── Values ─────────────────────────────────────── */
.val-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule)}
.val-grid li{background:var(--paper);padding:34px 26px;display:flex;flex-direction:column;gap:14px}
.val-n{font:400 12px var(--mono);color:var(--red);letter-spacing:.06em}
.val-grid h3{margin:0}
.val-grid p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.6}

/* ── Newsletter ─────────────────────────────────── */
.news-in{display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.news h2{margin-bottom:8px}
.news .sec-sub{margin:0}
.news-form{display:flex;gap:10px;flex:none;width:420px;max-width:100%}
.news-form input{
  flex:1;font:400 15.5px var(--body);padding:14px 16px;background:var(--lift);
  border:1px solid var(--rule);border-radius:2px;color:var(--ink);
}
.news-form input:focus{border-color:var(--red);outline:none}
.news-form button{white-space:nowrap}

/* ── Accordion ──────────────────────────────────── */
.acc{border-top:1px solid var(--rule)}
.acc-item{border-bottom:1px solid var(--rule)}
.acc-btn{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;
  padding:30px 0 30px 22px;position:relative;font-family:inherit;color:inherit;
}
.acc-icon{
  width:44px;height:44px;flex:none;border-radius:50%;
  background:var(--lift);border:1px solid var(--rule-lt);
  display:flex;align-items:center;justify-content:center;color:var(--red);
}
.acc-icon svg{width:21px;height:21px}
.acc-btn::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:2px;
  background:var(--red);transform:scaleY(0);transform-origin:top;transition:transform .28s;
}
.acc-item.open .acc-btn::before,.acc-btn:hover::before{transform:scaleY(1)}
.acc-t{display:flex;flex-direction:column;gap:7px}
.acc-t b{font:600 clamp(21px,2.3vw,28px)/1.15 var(--disp);font-variation-settings:"wdth" 110;letter-spacing:-.028em}
.acc-t em{font-style:normal;color:var(--ink-2);font-size:15.5px;max-width:58ch}
.acc-n{font:400 11px var(--mono);color:var(--ink-3);letter-spacing:.1em;white-space:nowrap}
.acc-sign{width:13px;height:13px;position:relative;flex:none}
.acc-sign::before,.acc-sign::after{content:"";position:absolute;background:var(--ink);transition:transform .28s}
.acc-sign::before{left:0;top:6px;width:13px;height:1.5px}
.acc-sign::after{left:5.75px;top:0;width:1.5px;height:13px}
.acc-item.open .acc-sign::after{transform:scaleY(0)}
.acc-end{display:flex;align-items:center;gap:22px}
.acc-panel{overflow:hidden;height:0;transition:height .32s ease}
.acc-chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 32px 22px}
.acc-chips span{
  font:400 13.5px var(--body);padding:8px 14px;background:var(--lift);
  border:1px solid var(--rule-lt);border-radius:2px;color:var(--ink-2);
}

/* ── Clients ────────────────────────────────────── */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.filters button{
  font:500 12.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;
  padding:9px 15px;background:none;border:1px solid var(--rule);border-radius:2px;
  color:var(--ink-2);cursor:pointer;transition:all .18s;
}
.filters button:hover{border-color:var(--ink-3);color:var(--ink)}
.filters button[aria-selected="true"]{background:var(--red);border-color:var(--red);color:#fff}
.logo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:10px}
.logo-grid figure{
  margin:0;height:78px;display:flex;align-items:center;justify-content:center;
  background:var(--lift);border:1px solid var(--rule-lt);border-radius:3px;padding:14px 18px;
  transition:border-color .2s,transform .2s;
}
.logo-grid figure:hover{border-color:var(--rule);transform:translateY(-2px)}
.logo-grid img{max-height:100%;width:auto;object-fit:contain}
.logo-grid figure.hide{display:none}

/* ── Why ────────────────────────────────────────── */
.rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--rule)}
.rows li{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;
  padding:32px 0;border-bottom:1px solid var(--rule-lt);
}
.rows p{margin:0;color:var(--ink-2)}

/* ── Contact ────────────────────────────────────── */
.contact-in{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start}
.det{margin:44px 0 0;display:grid;grid-template-columns:82px 1fr;gap:14px 20px;font-size:15.5px}
.det dt{font:400 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);padding-top:4px}
.det dd{margin:0;color:var(--ink-2)}
.det a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--red)}
.form{display:flex;flex-direction:column;gap:16px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:flex;flex-direction:column;gap:7px;font:400 11px var(--mono);
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.form input,.form textarea{
  font:400 16px var(--body);color:var(--ink);padding:13px 14px;
  background:var(--lift);border:1px solid var(--rule);border-radius:2px;
  transition:border-color .18s;resize:vertical;
}
.form input:focus,.form textarea:focus{border-color:var(--red);outline:none}
.form .btn{align-self:start;margin-top:6px}
.f-note{font:400 13px var(--body);color:var(--ink-2);margin:0;min-height:20px}

/* ── Footer ─────────────────────────────────────── */
.foot{border-top:1px solid var(--rule);padding:52px 0 60px}
.foot-in{display:grid;grid-template-columns:minmax(220px,auto) 1fr auto;gap:40px;align-items:center}
.foot-brand{display:flex;align-items:center;gap:14px}
.foot-mark{height:40px;width:auto;flex:none}
.foot-tag{margin:0;font:600 15px var(--disp);font-variation-settings:"wdth" 108;letter-spacing:-.02em;line-height:1.3;white-space:nowrap}
.foot-tag span{font:400 10.5px var(--mono);letter-spacing:.09em;color:var(--ink-3)}
.foot-nav{display:flex;gap:26px;justify-content:center}
.foot-nav a{font-size:14px;color:var(--ink-2);text-decoration:none}
.foot-nav a:hover{color:var(--red)}
.foot-legal{margin:0;font:400 12.5px var(--mono);color:var(--ink-3);letter-spacing:.03em}

/* ── Responsive ─────────────────────────────────── */
@media (max-width:1180px){
  .figs{grid-template-columns:repeat(3,1fr)}
  .figs li:nth-child(3){border-right:1px solid var(--rule-lt)}
}
@media (max-width:960px){
  :root{--gut:24px}
  .nav-links,.nav-cta{display:none}
  .nav.open .nav-links{
    display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    background:var(--paper);border-bottom:1px solid var(--rule);padding:8px var(--gut) 20px;
  }
  .nav.open .nav-links a{padding:13px 0;border-bottom:1px solid var(--rule-lt)}
  .burger{display:block}
  .hero{padding:64px 0 0}
  .hero-grid{grid-template-columns:1fr;gap:38px;align-items:start}
  .cube-stage{--cube:150px;margin:0 auto}
  .figs{grid-template-columns:repeat(2,1fr)}
  .figs li:nth-child(3){border-right:0}
  .figs li{border-bottom:1px solid var(--rule-lt);padding-bottom:22px}
  .figs li:last-child{border-right:1px solid var(--rule-lt)}
  .rows li,.contact-in{grid-template-columns:1fr;gap:14px}
  .contact-in{gap:56px}
  .lob,.clients,.why,.contact,.event,.awards,.values,.news,.industries{padding:74px 0}
  .val-grid{grid-template-columns:1fr 1fr}
  .award-shell{grid-template-columns:1fr 1fr}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .event-card{padding:36px 26px}
  .event-meta{gap:26px}
  .news-in{flex-direction:column;align-items:flex-start}
  .news-form{width:100%}
  .foot-in{grid-template-columns:1fr;text-align:left;gap:28px}
  .foot-nav{justify-content:flex-start}
}
@media (max-width:560px){
  .val-grid{grid-template-columns:1fr}
  .award-shell{grid-template-columns:1fr}
  .ind-grid{grid-template-columns:1fr}
  .figs{grid-template-columns:1fr}
  .f-row{grid-template-columns:1fr}
  .logo-grid{grid-template-columns:repeat(auto-fill,minmax(132px,1fr))}
  .acc-t em{display:none}
  .cube-stage{--cube:128px}
  .face-lbl{font-size:10.5px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}