/* ============================================================
   BYSK Ventures LLP — shared styles
   Palette derived from the company logo (cobalt / navy / slate)
   Signature motif: the logo's diagonal slash, reused as the
   UK <-> India "connector line" throughout the site.
   ============================================================ */

:root{
  --ink:#16243F;        /* deepest navy — primary text */
  --navy:#21365C;       /* mid navy — dark panels */
  --blue:#3F649F;       /* brand primary (from logo) */
  --blue-2:#34517D;     /* deep brand blue (from logo) */
  --blue-bright:#4f7bd0;/* lifted blue for accents/links on dark */
  --slate:#81858E;      /* steel gray (from logo) */
  --slate-d:#5f6470;
  --mist:#EAEEF6;       /* light blue-gray surface */
  --paper:#F6F8FC;      /* page background */
  --white:#ffffff;
  --line:rgba(22,36,63,.12);
  --line-soft:rgba(22,36,63,.07);

  --serif:'Spectral',Georgia,serif;
  --display:'Sora',system-ui,sans-serif;
  --body:'Inter',system-ui,sans-serif;

  --wrap:1180px;
  --r:16px;
  --shadow:0 1px 2px rgba(22,36,63,.05),0 18px 40px -24px rgba(22,36,63,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  font-size:17px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}

/* ---- type ---- */
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.08;letter-spacing:-.02em;margin:0}
h1{font-size:clamp(2.4rem,5.2vw,4.1rem)}
h2{font-size:clamp(1.9rem,3.6vw,2.8rem)}
h3{font-size:1.18rem;letter-spacing:-.01em}
p{margin:0 0 1.1em}
.lead{font-size:clamp(1.08rem,1.6vw,1.28rem);color:#39455e;line-height:1.6}

.eyebrow{
  font-family:var(--display);
  font-size:.74rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--blue-2);display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--slate),var(--blue));transform:skewX(-24deg)}

.tag-serif{font-family:var(--serif);font-style:italic;font-weight:500;color:var(--slate-d)}

/* ---- buttons ---- */
.btn{
  font-family:var(--display);font-weight:600;font-size:.96rem;
  display:inline-flex;align-items:center;gap:.55rem;
  padding:.85rem 1.5rem;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .2s ease,background .2s ease;
}
.btn .arr{transition:transform .18s ease}
.btn:hover .arr{transform:translate(3px,-3px)}
.btn-primary{background:var(--blue-2);color:#fff;box-shadow:0 12px 24px -12px rgba(52,81,125,.8)}
.btn-primary:hover{background:var(--ink);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue-2);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(0,0,0,.4)}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,248,252,.82);
  backdrop-filter:saturate(140%) blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.brand{display:flex;align-items:center}
.brand img{height:46px;width:auto}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  font-family:var(--display);font-weight:500;font-size:.95rem;
  padding:.5rem .85rem;border-radius:999px;color:#33405a;position:relative;
  transition:color .15s ease,background .15s ease;
}
.nav-links a:hover{color:var(--ink);background:var(--mist)}
.nav-links a.active{color:var(--blue-2)}
.nav-links a.active::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:.18rem;height:2px;
  background:var(--blue);transform:skewX(-24deg);
}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{font-family:var(--display);font-weight:600;font-size:.95rem;color:var(--ink);white-space:nowrap}
.nav-phone small{display:block;font-size:.66rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--slate)}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;padding:84px 0 90px}
.hero::before{ /* faint diagonal slash echoing the logo */
  content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    linear-gradient(115deg,transparent 0 47%,rgba(63,100,159,.06) 47% 48%,transparent 48%),
    radial-gradient(900px 500px at 88% -10%,rgba(63,100,159,.10),transparent 60%);
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{margin:18px 0 0}
.hero h1 .ix{color:var(--blue-2)}
.hero .lead{margin:22px 0 30px;max-width:33ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-trust{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.hero-trust .t-num{font-family:var(--display);font-weight:700;font-size:1.7rem;color:var(--ink);letter-spacing:-.02em}
.hero-trust .t-lab{font-size:.82rem;color:var(--slate-d);max-width:14ch;line-height:1.35}

/* hero connector visual */
.connector-card{
  position:relative;
  background:linear-gradient(162deg,rgba(34,56,97,.5) 0%,#16243F 100%),var(--navy);
  border-radius:var(--r);padding:30px;color:#eaf0fb;overflow:hidden;
  box-shadow:var(--shadow);min-height:380px;
  border:1px solid rgba(255,255,255,.06);
}
.connector-card .cc-label{font-family:var(--display);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:#9fb4da;margin-bottom:4px}
.connector-card h4{font-family:var(--display);font-size:1.05rem;font-weight:600;margin:0 0 22px;color:#fff}
.cc-svg{width:100%;height:auto;display:block}
.cc-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.cc-chip{font-size:.76rem;font-family:var(--display);font-weight:500;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);color:#dce6fa;padding:.32rem .7rem;border-radius:999px}

/* moving dot animation */
.flow-dot{offset-path:path('M 60 60 L 320 250');animation:flow 3.2s linear infinite}
@keyframes flow{0%{offset-distance:0%;opacity:0}10%{opacity:1}90%{opacity:1}100%{offset-distance:100%;opacity:0}}
@keyframes flow2{0%{offset-distance:0%;opacity:0}12%{opacity:1}88%{opacity:1}100%{offset-distance:100%;opacity:0}}

/* ============================================================
   STАТ BAND (navy, diagonal top edge = logo slash)
   ============================================================ */
.statband{
  background:linear-gradient(135deg,var(--navy),var(--ink));color:#eaf0fb;
  clip-path:polygon(0 30px,100% 0,100% 100%,0 100%);
  margin-top:-1px;padding:90px 0 76px;
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat .s-num{font-family:var(--display);font-weight:700;font-size:clamp(2.1rem,3.4vw,2.8rem);letter-spacing:-.02em;
  background:linear-gradient(90deg,#fff,#aec4ec);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .s-lab{color:#b9c6e2;font-size:.95rem;margin-top:4px}
.stat{position:relative;padding-left:20px}
.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--blue);transform:skewX(-18deg)}

/* ============================================================
   GENERIC SECTION HEADERS
   ============================================================ */
.sec-head{max-width:660px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{margin:14px 0 0}
.sec-head p{margin-top:16px;color:#46526b}

/* two-col what-we-do */
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.disc{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r);padding:36px 34px;
  box-shadow:0 1px 2px rgba(22,36,63,.04);position:relative;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
}
.disc:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.disc .kicker{font-family:var(--display);font-weight:700;font-size:.8rem;letter-spacing:.16em;color:var(--blue-2)}
.disc h3{margin:10px 0 12px;font-size:1.45rem}
.disc ul{list-style:none;margin:18px 0 0;padding:0}
.disc li{position:relative;padding:.4rem 0 .4rem 1.6rem;border-top:1px solid var(--line-soft);font-size:.97rem;color:#3a4763}
.disc li:first-child{border-top:0}
.disc li::before{content:"";position:absolute;left:0;top:.95rem;width:11px;height:2px;background:var(--blue);transform:skewX(-24deg)}
.disc .corner{position:absolute;right:-30px;top:-30px;width:120px;height:120px;
  background:conic-gradient(from 200deg at 50% 50%,transparent,rgba(63,100,159,.08));border-radius:50%;}

/* industries */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ind{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r);padding:30px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;position:relative;overflow:hidden;
}
.ind:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(63,100,159,.3)}
.ind .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,var(--blue),var(--blue-2));color:#fff;margin-bottom:18px}
.ind .ico svg{width:24px;height:24px}
.ind h3{font-size:1.2rem;margin-bottom:8px}
.ind p{font-size:.95rem;color:#46526b;margin:0}
.ind .ind-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:7px}
.ind .ind-tags span{font-size:.74rem;font-family:var(--display);font-weight:500;color:var(--blue-2);
  background:var(--mist);padding:.28rem .6rem;border-radius:6px}

/* bridge / signature section */
.bridge{background:linear-gradient(135deg,var(--navy),var(--ink));color:#eaf0fb;overflow:hidden;position:relative}
.bridge .wrap{position:relative;z-index:2}
.bridge-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:50px;align-items:center}
.bridge h2{color:#fff}
.bridge .lead{color:#c5d2ec}
.bridge .b-points{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:14px}
.bridge .b-points li{position:relative;padding-left:28px;color:#d4deef;font-size:.98rem}
.bridge .b-points li::before{content:"";position:absolute;left:0;top:.5em;width:14px;height:2px;background:var(--blue-bright);transform:skewX(-24deg)}
.map-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:var(--r);padding:26px}
.map-card svg{width:100%;height:auto}

/* why grid */
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--r);overflow:hidden}
.why{background:#fff;padding:34px 32px}
.why .w-no{font-family:var(--display);font-weight:700;color:var(--slate);font-size:.85rem;letter-spacing:.1em}
.why h3{margin:8px 0 10px;font-size:1.25rem}
.why p{margin:0;color:#46526b;font-size:.97rem}

/* steps (engagement) */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding-top:26px}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--display);font-weight:700;
  font-size:1.05rem;color:var(--blue-2);position:absolute;top:0;left:0}
.step::after{content:"";position:absolute;top:8px;left:34px;right:-22px;height:2px;
  background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 12px)}
.step:last-child::after{display:none}
.step h3{font-size:1.08rem;margin:14px 0 8px}
.step p{font-size:.92rem;color:#46526b;margin:0}

/* CTA band */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--blue-2),var(--navy));color:#fff;border-radius:24px;padding:60px;margin:0 24px}
.cta-band::after{content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 0 60%,rgba(255,255,255,.06) 60% 61%,transparent 61%)}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-band h2{color:#fff;max-width:18ch}
.cta-band p{color:#d3def3;margin:10px 0 0;max-width:40ch}

/* generic prose page sections */
.prose{max-width:760px}
.prose p{color:#3a4763;font-size:1.07rem}
.prose h2{margin:46px 0 14px}
.colspan-2{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}

/* value cards (about) */
.val-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.val{background:#fff;border:1px solid var(--line-soft);border-radius:14px;padding:28px}
.val .v-mark{width:34px;height:3px;background:var(--blue);transform:skewX(-24deg);margin-bottom:16px}
.val h3{font-size:1.1rem;margin-bottom:8px}
.val p{font-size:.94rem;color:#46526b;margin:0}

/* mini contact strip */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cinfo{background:#fff;border:1px solid var(--line-soft);border-radius:14px;padding:28px}
.cinfo .c-lab{font-family:var(--display);font-weight:600;font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-2);margin-bottom:10px}
.cinfo p{margin:0;color:#33405a;font-size:1rem;line-height:1.55}
.cinfo a{color:var(--blue-2);font-weight:600}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--ink);color:#c4cee0;padding:64px 0 30px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand img{height:44px;background:#fff;padding:8px 12px;border-radius:10px;margin-bottom:16px}
.foot-brand p{font-size:.92rem;color:#9aa8c4;max-width:30ch}
.foot-col h4{font-family:var(--display);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:#8fa0c0;margin:0 0 16px}
.foot-col a,.foot-col p{display:block;color:#c4cee0;font-size:.94rem;margin:0 0 10px;transition:color .15s}
.foot-col a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:46px;padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:.84rem;color:#8595b4}

/* ---- reveal animation ---- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .connector-card{order:-1}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:34px 24px}
  .split,.colspan-2,.bridge-grid{grid-template-columns:1fr;gap:24px}
  .ind-grid,.val-grid,.contact-grid{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:30px 22px}
  .step::after{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:760px){
  .section{padding:70px 0}
  .nav-links,.nav-phone{display:none}
  .menu-btn{display:block}
  .nav-links.open{display:flex;position:absolute;top:78px;left:0;right:0;flex-direction:column;
    background:var(--paper);padding:14px 24px 22px;border-bottom:1px solid var(--line);gap:2px}
  .nav-links.open a{padding:.8rem .4rem;border-bottom:1px solid var(--line-soft)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band{padding:42px 28px;margin:0 16px}
  .steps{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero-trust{gap:26px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}