/* ============================================================
   BCI PTE LTD — Shared Stylesheet
   Theme: white / black / dark grey / light grey (monochrome)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Anton&family=Hanken+Grotesk:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root{
  --paper:#ffffff;
  --ink:#0e0e0e;
  --ink-soft:#1a1a1a;
  --accent:#3d3d3d;      /* dark grey accent (replaces red) */
  --graphite:#222222;    /* panels / hover */
  --grey-900:#161616;
  --grey-700:#2a2a2a;
  --grey-600:#6b6b6b;
  --grey-500:#8a8a8a;
  --grey-400:#a8a8a8;
  --grey-300:#cfcfcf;
  --grey-200:#e6e6e6;
  --grey-100:#f1f1f0;
  --grey-050:#f8f8f7;

  --font-display:'Anton', Impact, sans-serif;
  --font-body:'Hanken Grotesk', system-ui, sans-serif;
  --font-mono:'JetBrains Mono', ui-monospace, monospace;

  --maxw:1240px;
  --gutter:clamp(20px,5vw,64px);
  --header-h:76px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:var(--paper);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(56px,9vw,128px)}
.section--tight{padding-block:clamp(40px,6vw,80px)}
.bg-ink{background:var(--ink);color:var(--paper)}
.bg-grey{background:var(--grey-050)}

.eyebrow{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.28em;
  text-transform:uppercase;color:var(--accent);display:inline-flex;align-items:center;
  gap:.7em;font-weight:500}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--accent);display:inline-block}

h1,h2,h3{font-family:var(--font-display);font-weight:400;line-height:.96;
  letter-spacing:.01em;text-transform:uppercase}
.display{font-size:clamp(2.7rem,8vw,6.4rem)}
h2.title{font-size:clamp(2rem,5.2vw,4rem);margin-block:.3em .5em}
h3{font-size:clamp(1.3rem,2.4vw,1.9rem)}
.lead{font-size:clamp(1.05rem,1.7vw,1.35rem);color:var(--grey-600);max-width:62ch;font-weight:400}
.bg-ink .lead{color:var(--grey-300)}
p{max-width:68ch}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.7em;font-family:var(--font-mono);
  font-weight:500;font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;
  padding:1.05em 1.7em;border:2px solid var(--ink);background:var(--ink);color:#fff;
  cursor:pointer;transition:all .25s var(--ease)}
.btn .arw{transition:transform .25s var(--ease)}
.btn:hover{background:var(--graphite);border-color:var(--graphite)}
.btn:hover .arw{transform:translateX(5px)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.bg-ink .btn--ghost{color:#fff;border-color:#fff}
.bg-ink .btn--ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn--light{background:#fff;color:var(--ink);border-color:#fff}
.btn--light:hover{background:var(--graphite);color:#fff;border-color:var(--graphite)}

/* ============================================================ HEADER */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--grey-200)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{display:flex;align-items:center;height:100%}
.brand img{height:40px;width:auto}
.nav{display:flex;align-items:center;gap:clamp(1rem,2.4vw,2.6rem)}
.nav a{font-family:var(--font-mono);font-size:.82rem;font-weight:500;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink);padding:.4em 0;position:relative}
.nav a::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;
  background:var(--ink);transition:width .25s var(--ease)}
.nav a:hover::after,.nav a.active::after{width:100%}
.nav a.active{color:var(--ink)}
.nav .btn{padding:.75em 1.2em;color:#fff}
.nav .btn::after{display:none}

.burger{display:none;background:none;border:0;cursor:pointer;width:34px;height:28px;position:relative}
.burger span{position:absolute;left:0;height:3px;width:100%;background:var(--ink);transition:.3s var(--ease)}
.burger span:nth-child(1){top:2px}
.burger span:nth-child(2){top:12px}
.burger span:nth-child(3){top:22px}
.burger.open span:nth-child(1){top:12px;transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){top:12px;transform:rotate(-45deg)}

@media(max-width:900px){
  .burger{display:block;position:relative;z-index:210}
  .nav{position:fixed;inset:0;width:100%;height:100vh;background:var(--paper);
    flex-direction:column;align-items:center;justify-content:center;gap:1.9rem;
    padding:2rem var(--gutter);transform:translateX(100%);
    transition:transform .35s var(--ease);z-index:200}
  .nav.open{transform:translateX(0)}
  .nav a{font-size:1.25rem;color:var(--ink)}
  .nav .btn{margin-top:.5rem}
}

/* ============================================================ HERO */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding-block:clamp(70px,12vw,150px)}
.hero-grid{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(var(--grey-700) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grey-700) 1px,transparent 1px);
  background-size:54px 54px;
  -webkit-mask-image:radial-gradient(circle at 70% 40%,#000,transparent 80%);
          mask-image:radial-gradient(circle at 70% 40%,#000,transparent 80%)}
.hero-wedge{position:absolute;top:0;right:0;width:42%;height:100%;background:#1d1d1d;
  clip-path:polygon(38% 0,100% 0,100% 100%,0 100%)}
.hero-wedge::after{content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,transparent 0 16px,rgba(255,255,255,.035) 16px 18px)}
.hero .wrap{position:relative;z-index:2}
.hero .eyebrow{color:#fff}
.hero .eyebrow::before{background:#fff}
.hero h1{margin-block:.25em .35em;max-width:16ch}
.hero h1 em{font-style:normal;color:var(--grey-400)}
.hero-meta{display:flex;flex-wrap:wrap;gap:2.4rem;margin-top:2.4rem;font-family:var(--font-mono);
  font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--grey-400)}
.hero-meta b{display:block;font-family:var(--font-display);font-size:2.1rem;color:#fff;
  letter-spacing:.02em;margin-bottom:.1em}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.6rem}

.phero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding-block:clamp(64px,9vw,120px)}
.phero .hero-grid{opacity:.4}
.phero .wrap{position:relative;z-index:2}
.phero h1{font-size:clamp(2.6rem,7vw,5.4rem);margin-top:.2em;max-width:18ch}
.phero .lead{margin-top:1.2rem}
.crumb{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--grey-400)}
.crumb a:hover{color:#fff}
.crumb .sep{color:var(--grey-400);margin-inline:.5em}

.sec-head{max-width:760px;margin-bottom:clamp(2rem,4vw,3.4rem)}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head.center .lead{margin-inline:auto}
.sec-head.center .eyebrow{justify-content:center}

.idx{font-family:var(--font-mono);color:var(--accent);font-size:.8rem;letter-spacing:.2em;font-weight:700}

/* ============================================================ GRID / CARDS */
.grid{display:grid;gap:1.5rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--grey-200);padding:2rem 1.8rem;position:relative;
  transition:.3s var(--ease);overflow:hidden}
.card::before{content:"";position:absolute;left:0;top:0;height:100%;width:4px;background:var(--ink);
  transform:scaleY(0);transform-origin:top;transition:.3s var(--ease)}
.card:hover{border-color:var(--ink);transform:translateY(-4px);box-shadow:0 20px 40px -24px rgba(0,0,0,.35)}
.card:hover::before{transform:scaleY(1)}
.card .idx{display:block;margin-bottom:1rem}
.card h3{font-size:1.25rem;margin-bottom:.6rem}
.card p{font-size:.96rem;color:var(--grey-600)}

.cat-card{display:flex;flex-direction:column;gap:.5rem}
.cat-card ul{margin-top:.5rem;display:flex;flex-direction:column;gap:.35rem}
.cat-card li{font-size:.9rem;color:var(--grey-600);padding-left:1rem;position:relative}
.cat-card li::before{content:"";position:absolute;left:0;top:.6em;width:5px;height:5px;background:var(--ink)}

.split{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,5rem);align-items:center}
@media(max-width:860px){.split{grid-template-columns:1fr}}

/* visual block (figure 01 etc) */
.viz{position:relative;aspect-ratio:4/3;background:var(--grey-100);border:1px solid var(--grey-200);overflow:hidden}
.viz--ink{background:var(--ink)}
.viz .blueprint{position:absolute;inset:0;opacity:.6;
  background-image:linear-gradient(var(--grey-200) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grey-200) 1px,transparent 1px);background-size:28px 28px}
.viz--ink .blueprint{opacity:.16;
  background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px)}
.viz .tag{position:absolute;left:16px;bottom:14px;font-family:var(--font-mono);font-size:.66rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--grey-400);z-index:3}
.viz .mark{position:absolute;right:-8%;top:50%;transform:translateY(-50%);font-family:var(--font-display);
  font-size:13rem;color:#fff;opacity:.05;z-index:1;line-height:1}
.viz .figure{position:absolute;inset:0;margin:auto;width:54%;z-index:2;stroke:var(--grey-300);
  stroke-width:1.4;fill:none}
.viz .corner{position:absolute;width:22px;height:22px;border:2px solid var(--grey-400)}
.viz .corner.tl{top:14px;left:14px;border-right:0;border-bottom:0}
.viz .corner.br{bottom:14px;right:14px;border-left:0;border-top:0}

/* ============================================================ TAGLINE STRIP */
.tag-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid #262626}
@media(max-width:760px){.tag-strip{grid-template-columns:1fr}}
.tag-strip .col{padding:clamp(2rem,4vw,3.4rem);border-right:1px solid #262626}
.tag-strip .col:last-child{border-right:0}
@media(max-width:760px){.tag-strip .col{border-right:0;border-bottom:1px solid #262626}}
.tag-strip .word{font-family:var(--font-display);font-size:clamp(2.4rem,5vw,3.6rem);color:#fff;line-height:1}
.tag-strip .word .dot{color:var(--grey-500)}
.tag-strip p{color:var(--grey-400);margin-top:1rem;font-size:1rem}

/* ============================================================ VISION / MISSION */
.vm{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--grey-200)}
@media(max-width:760px){.vm{grid-template-columns:1fr}}
.vm .cell{padding:clamp(2rem,4vw,3.4rem)}
.vm .cell:first-child{border-right:1px solid var(--grey-200)}
@media(max-width:760px){.vm .cell:first-child{border-right:0;border-bottom:1px solid var(--grey-200)}}
.vm h3{font-size:1.7rem;margin:.6rem 0 1rem}
.vm p{font-size:1.05rem;color:var(--grey-600)}

.promise .num{font-family:var(--font-display);font-size:2.6rem;color:var(--grey-200);line-height:1;margin-bottom:.6rem}
.promise .card:hover .num{color:var(--ink)}

/* ============================================================ PARTNERS */
.partner-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
@media(max-width:680px){.partner-row{grid-template-columns:1fr}}
.partner{border:1px solid var(--grey-200);background:#fff;padding:2.4rem 2rem;display:flex;
  flex-direction:column;gap:1.4rem;transition:.3s var(--ease)}
.partner:hover{border-color:var(--ink);box-shadow:0 18px 40px -26px rgba(0,0,0,.35)}
.partner .logo-box{background:#fff;border:1px solid var(--grey-200);height:118px;display:flex;
  align-items:center;justify-content:center;padding:1.4rem}
.partner .logo-box img{max-height:64px;width:auto}
.partner p{color:var(--grey-600);font-size:.96rem}
.partner .visit{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink);display:inline-flex;gap:.5em;align-items:center;margin-top:auto;font-weight:500}
.partner:hover .visit{gap:.9em}

/* ============================================================ SERVICES TABS + SLIDER */
.svc-tabs{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2.5rem}
.svc-tab{font-family:var(--font-mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;
  padding:.8em 1.2em;border:1px solid var(--grey-300);background:#fff;color:var(--ink);cursor:pointer;
  transition:.2s var(--ease);font-weight:500}
.svc-tab:hover{border-color:var(--ink)}
.svc-tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.svc-tab .n{color:var(--grey-500);margin-right:.6em}
.svc-tab.active .n{color:#fff}

.svc-panel{display:none;animation:fade .4s var(--ease)}
.svc-panel.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.svc-panel-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:1rem;
  margin-bottom:1.6rem;border-bottom:2px solid var(--ink);padding-bottom:1rem}
.svc-panel-head h3{font-size:clamp(1.6rem,3.4vw,2.6rem)}
.svc-panel-head p{color:var(--grey-600);max-width:46ch;font-size:.98rem}

.slider{position:relative}
.slider-track{display:flex;gap:1.25rem;overflow-x:auto;scroll-behavior:smooth;scroll-snap-type:x mandatory;
  padding-bottom:1rem;-ms-overflow-style:none;scrollbar-width:none}
.slider-track::-webkit-scrollbar{display:none}
.slide{scroll-snap-align:start;flex:0 0 clamp(260px,30%,340px);border:1px solid var(--grey-200);
  background:#fff;padding:1.8rem;display:flex;flex-direction:column;gap:.8rem;transition:.3s var(--ease);position:relative}
.slide::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:.3s var(--ease)}
.slide:hover{border-color:var(--ink);transform:translateY(-4px)}
.slide:hover::before{transform:scaleX(1)}
.slide .ico{width:34px;height:34px;stroke:var(--ink);stroke-width:1.6;fill:none}
.slide h4{font-family:var(--font-body);font-weight:800;font-size:1.08rem;line-height:1.25}
.slide p{font-size:.92rem;color:var(--grey-600)}
.slide .stag{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;color:var(--grey-400);text-transform:uppercase}

.slider-nav{display:flex;gap:.6rem;margin-top:1.2rem}
.slider-nav button{width:48px;height:48px;border:1px solid var(--ink);background:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:.2s var(--ease)}
.slider-nav button:hover{background:var(--ink);border-color:var(--ink);color:#fff}
.slider-nav svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none}

/* ============================================================ FORM */
.form-band{background:var(--ink);color:#fff}
.form-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
@media(max-width:860px){.form-grid{grid-template-columns:1fr}}
.form-grid .info h2{color:#fff}
.form-grid .info .lead{color:var(--grey-300)}
.contact-list{margin-top:2rem;display:flex;flex-direction:column;gap:1.3rem}
.contact-list .item{display:flex;gap:1rem;align-items:flex-start}
.contact-list .item svg{width:22px;height:22px;stroke:var(--grey-300);stroke-width:1.7;fill:none;flex:0 0 auto;margin-top:3px}
.contact-list .item .k{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--grey-400);margin-bottom:.2em}
.contact-list .item a,.contact-list .item span{color:#fff;font-size:1.02rem}
.contact-list .item a:hover{color:var(--grey-300)}

form.lead-form{display:grid;gap:1.1rem}
.fields-2{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
@media(max-width:520px){.fields-2{grid-template-columns:1fr}}
.field label{display:block;font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--grey-400);margin-bottom:.5em}
.field input,.field select,.field textarea{width:100%;background:transparent;border:1px solid #3a3a3a;color:#fff;
  font-family:var(--font-body);font-size:1rem;padding:.9em 1em;transition:.2s var(--ease)}
.field input::placeholder,.field textarea::placeholder{color:var(--grey-500)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#fff}
.field select{appearance:none;cursor:pointer}
.field select option{background:var(--ink)}
.field textarea{resize:vertical;min-height:120px}
form.lead-form .btn{justify-self:start;margin-top:.4rem}
.form-note{font-family:var(--font-mono);font-size:.7rem;color:var(--grey-500);letter-spacing:.04em}

/* ============================================================ CTA STRIP */
.cta-strip{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.cta-strip::after{content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(135deg,transparent 0 22px,rgba(255,255,255,.04) 22px 24px)}
.cta-strip .wrap{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;
  justify-content:space-between;gap:1.6rem;padding-block:clamp(2.6rem,5vw,4rem)}
.cta-strip h2{font-size:clamp(1.8rem,4vw,3rem);max-width:18ch}
.cta-strip .eyebrow{color:#fff}
.cta-strip .eyebrow::before{background:#fff}

/* ============================================================ FOOTER */
.site-footer{background:#000;color:var(--grey-400)}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem;padding-block:clamp(3rem,6vw,5rem)}
@media(max-width:760px){.footer-top{grid-template-columns:1fr;gap:2rem}}
.footer-logo{background:#fff;display:inline-flex;padding:.9rem 1.1rem;margin-bottom:1.4rem}
.footer-logo img{height:34px}
.site-footer h4{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin-bottom:1.1rem}
.site-footer .fcol a,.site-footer .fcol span{display:block;color:var(--grey-400);padding:.32em 0;font-size:.94rem}
.site-footer .fcol a:hover{color:#fff}
.footer-blurb{font-size:.95rem;color:var(--grey-500);max-width:42ch}
.footer-bar{border-top:1px solid #1e1e1e;padding-block:1.4rem;display:flex;flex-wrap:wrap;gap:.6rem;
  justify-content:space-between;align-items:center}
.footer-bar p{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;color:var(--grey-500)}
.footer-bar .dot{color:var(--grey-500)}

/* ============================================================ REVEAL */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}