/* ---------- tokens ---------- */
:root{
  --ink:#0a0a0a;
  --ink-soft:#3d3d3d;
  --paper:#ffffff;
  --paper-soft:#f6f6f7;
  --line:#e7e7e9;
  --dark:#101012;
  --dark-soft:#1c1c1f;
  --violet-1:#407bff;
  --violet-2:#a9c6ff;
  --violet-3:#1f4fcc;
  --radius:10px;
  --radius-sm:7px;
  --max:1180px;
  --pad:24px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:500;letter-spacing:-0.02em;}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}

.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad);position:relative;}

/* faint grid backdrop like tars.pro */
.bg-grid{
  position:fixed;
  inset:0;
  z-index:-1;
  background-image:
    linear-gradient(to right, rgba(0,0,0,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,0.035) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 55% at 50% 0%, black 40%, transparent 85%);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 22px;
  border-radius:var(--radius-sm);
  font-size:14.5px;
  font-weight:500;
  border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, opacity .15s ease;
  white-space:nowrap;
}
.btn .arrow{transition:transform .15s ease;}
.btn:hover .arrow{transform:translateX(3px);}
.btn-dark{background:#1e1e1e;color:#fff;}
.btn-dark:hover{background:#000;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:#c7c7cc;}
.btn-sm{padding:9px 16px;font-size:13.5px;}
.btn-block{width:100%;justify-content:center;}

/* ---------- nav ---------- */
.nav-wrap{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.78);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo{
  display:flex;align-items:center;gap:10px;
  font-size:16.5px;font-weight:700;letter-spacing:-0.01em;color:var(--ink);
  text-transform:lowercase;
}
.logo-icon{
  width:32px;height:32px;border-radius:10px;
  background:var(--dark);
  display:flex;align-items:center;justify-content:center;
  flex:none;
}
.logo-mark{
  width:18px;height:18px;
  display:block;
}
.logo-thin{font-weight:400;color:var(--ink-soft);margin-left:4px;}

.nav-links{
  display:flex;gap:4px;
  background:var(--paper-soft);
  border:1px solid var(--line);
  border-radius:999px;
  padding:5px;
}
.nav-links a{
  padding:8px 16px;border-radius:999px;
  font-size:13.5px;color:var(--ink-soft);
  transition:background .15s ease, color .15s ease;
}
.nav-links a:hover{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.06);}

.nav-cta{display:inline-flex;}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:none;padding:8px;}
.burger span{width:20px;height:1.5px;background:var(--ink);display:block;}
.mobile-menu{display:none;flex-direction:column;padding:8px var(--pad) 18px;border-bottom:1px solid var(--line);background:#fff;}
.mobile-menu a{padding:10px 4px;font-size:14.5px;border-top:1px solid var(--line);}
.mobile-menu a:first-child{border-top:none;}

/* ---------- hero ---------- */
.hero{
  padding:76px 24px 0;
  text-align:center;
  display:flex;flex-direction:column;align-items:center;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-soft);
  border:1px solid var(--line);
  padding:7px 14px;border-radius:999px;
  background:var(--paper-soft);
  margin-bottom:28px;
}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--violet-1);display:inline-block;}

.hero-title{
  font-size:clamp(36px,6vw,68px);
  line-height:1.04;
  font-weight:500;
  max-width:820px;
}
.hero-sub{
  margin-top:22px;
  font-size:clamp(15px,2vw,18px);
  color:var(--ink-soft);
  max-width:480px;
}
.hero-actions{
  display:flex;gap:12px;margin-top:34px;flex-wrap:wrap;justify-content:center;
}

.hero-visual{
  position:relative;
  width:100%;
  max-width:520px;
  height:280px;
  margin:56px auto 0;
  display:flex;align-items:center;justify-content:center;
}
.hero-glow{
  position:absolute;inset:0;
  background:radial-gradient(closest-side, rgba(64,123,255,.28), transparent 72%);
  filter:blur(10px);
  z-index:0;
}
.crystal{
  position:relative;width:230px;height:230px;
  transform-style:preserve-3d;
  transform:rotateX(52deg) rotateZ(45deg);
  animation:spin 14s linear infinite;
  z-index:1;
}
@keyframes spin{
  0%{transform:rotateX(52deg) rotateZ(45deg);}
  100%{transform:rotateX(52deg) rotateZ(405deg);}
}
.facet{position:absolute;inset:0;border-radius:26px;}
.f1{background:linear-gradient(135deg,#e8f0ff,#8fb3ff 60%,#407bff);box-shadow:0 30px 60px -20px rgba(64,123,255,.45);}
.f2{background:linear-gradient(135deg,#407bff,#15296b);transform:translate(18px,18px) scale(.72);opacity:.85;}
.f3{background:linear-gradient(135deg,#ffffff,#cfe0ff);transform:translate(-16px,-16px) scale(.46);opacity:.9;}

.hero-stats{
  width:100%;
  margin-top:64px;
  padding-top:34px;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.hero-stat{display:flex;flex-direction:column;gap:4px;}
.hero-stat .num{font-size:clamp(22px,3vw,30px);font-weight:600;letter-spacing:-0.02em;}
.hero-stat .label{font-size:13px;color:var(--ink-soft);}

/* ---------- strip (marquee) ---------- */
.strip{padding:56px 0;text-align:center;overflow:hidden;}
.strip-label{font-size:13px;color:var(--ink-soft);margin-bottom:22px;letter-spacing:.02em;text-transform:uppercase;}
.strip-marquee{
  display:flex;gap:48px;width:100%;overflow:hidden;
  mask-image:linear-gradient(to right, transparent, black 64px, black calc(100% - 64px), transparent);
  -webkit-mask-image:linear-gradient(to right, transparent, black 64px, black calc(100% - 64px), transparent);
}
.strip-track{
  display:flex;flex-wrap:nowrap;flex:none;gap:48px;width:max-content;
  color:#8a8a90;font-weight:600;font-size:16px;white-space:nowrap;
  animation:strip-scroll 28s linear infinite;
}
.strip-marquee:hover .strip-track{animation-play-state:paused;}
@keyframes strip-scroll{
  from{transform:translateX(0);}
  to{transform:translateX(calc(-100% - 48px));}
}
@media (prefers-reduced-motion: reduce){
  .strip-track{animation:none;}
}

/* ---------- mission (dark) ---------- */
.mission{
  background:var(--dark);
  color:#fff;
  padding:88px 0;
  margin-top:16px;
}
.mission-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start;
}
.mission h2{
  font-size:clamp(26px,3.4vw,38px);
  margin-top:14px;
  color:#fff;
}
.mission-sub{margin-top:18px;color:#a6a6ad;font-size:15.5px;max-width:440px;}
.mission-cards{display:flex;flex-direction:column;gap:1px;background:#28282c;border-radius:14px;overflow:hidden;}
.m-card{background:var(--dark-soft);padding:26px 28px;}
.m-card h3{color:#fff;font-size:16.5px;font-weight:600;margin-bottom:8px;}
.m-card p{color:#9d9da4;font-size:14.5px;}

/* ---------- eyebrow / section head ---------- */
.eyebrow{
  font-size:13px;font-weight:600;color:var(--violet-3);
  text-transform:uppercase;letter-spacing:.06em;
}
.eyebrow-light{color:var(--violet-2);}
.section{padding:96px 24px;}
.section-alt{padding:96px 0;background:var(--paper-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:600px;margin-bottom:52px;}
.section-head h2{font-size:clamp(26px,3.6vw,38px);margin-top:12px;}
.section-sub{margin-top:16px;color:var(--ink-soft);font-size:15.5px;}

/* ---------- cards grid ---------- */
.cards-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;
}
.card{background:#fff;padding:32px 28px;transition:background .15s ease;}
.card:hover{background:var(--paper-soft);}
.card-num{font-size:22px;line-height:1;margin-bottom:18px;}
.card h3{font-size:17px;font-weight:600;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--ink-soft);}

/* ---------- tools ---------- */
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.tool{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;}
.tool-icon{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:28px;line-height:1;margin-bottom:16px;
}
.tool h4{font-size:15.5px;font-weight:600;margin-bottom:8px;}
.tool p{font-size:14px;color:var(--ink-soft);}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  padding:11px 18px;border-radius:999px;
  border:1px solid var(--line);
  font-size:14px;color:var(--ink-soft);
  background:#fff;
}

/* ---------- why ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.why-index{font-size:13px;color:#b3b3b8;font-weight:600;}
.why-item h3{font-size:16.5px;font-weight:600;margin:14px 0 8px;}
.why-item p{font-size:14px;color:var(--ink-soft);}

/* ---------- clients ---------- */
.clients{padding-left:0;padding-right:0;}
.clients-marquee{
  display:flex;flex-direction:column;gap:16px;overflow:hidden;
  mask-image:linear-gradient(to right, transparent, black 80px, black calc(100% - 80px), transparent);
  -webkit-mask-image:linear-gradient(to right, transparent, black 80px, black calc(100% - 80px), transparent);
}
.clients-row{display:flex;gap:16px;width:max-content;}
.clients-track{
  display:flex;gap:16px;flex:none;
  animation:clients-scroll 60s linear infinite;
}
.clients-row--rev .clients-track{animation-direction:reverse;}
.clients-row:hover .clients-track{animation-play-state:paused;}
@keyframes clients-scroll{
  from{transform:translateX(0);}
  to{transform:translateX(calc(-100% - 16px));}
}
.client-logo{
  flex:none;width:200px;height:104px;padding:20px 26px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  display:flex;align-items:center;justify-content:center;
}
.client-logo img{
  display:block;width:auto;height:auto;max-width:100%;max-height:60px;
  opacity:.6;transition:opacity .2s ease;
}
.client-logo:hover img{opacity:1;}
@media (prefers-reduced-motion: reduce){
  .clients-marquee{mask-image:none;-webkit-mask-image:none;padding:0 var(--pad);}
  .clients-row{width:auto;flex-wrap:wrap;justify-content:center;}
  .clients-track{animation:none;flex:1 1 100%;flex-wrap:wrap;justify-content:center;}
  .clients-track[aria-hidden="true"]{display:none;}
}

/* ---------- cta ---------- */
.cta{background:var(--dark);color:#fff;padding:96px 0;margin-top:16px;}
.cta-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:start;}
.cta-text h2{color:#fff;font-size:clamp(26px,3.4vw,36px);margin-top:12px;}
.cta-sub{margin-top:16px;color:#a6a6ad;font-size:15.5px;max-width:420px;}
.cta-contacts{display:flex;flex-direction:column;gap:10px;margin-top:32px;font-size:15px;}
.cta-contacts a:hover{color:var(--violet-2);}
.cta-contacts span{color:#8a8a90;}

.cta-form{
  background:var(--dark-soft);
  border:1px solid #2a2a2e;
  border-radius:16px;
  padding:28px;
  display:flex;flex-direction:column;gap:16px;
}
.cta-form label{display:flex;flex-direction:column;gap:7px;font-size:13px;color:#a6a6ad;}
.cta-form input[type="text"]{
  background:#101012;border:1px solid #2f2f34;color:#fff;
  border-radius:8px;padding:12px 14px;font-size:14.5px;outline:none;
  transition:border-color .15s ease;
}
.cta-form input[type="text"]:focus{border-color:var(--violet-1);}
.cta-form input::placeholder{color:#5c5c62;}
.checkbox{flex-direction:row !important;align-items:flex-start;gap:10px !important;font-size:12.5px !important;line-height:1.4;}
.checkbox input{margin-top:3px;}
.form-note{color:#a9c6ff;font-size:13.5px;text-align:center;}

/* ---------- footer ---------- */
.footer{padding:64px 0 28px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:40px;
  padding-bottom:44px;border-bottom:1px solid var(--line);
}
.footer-brand p{margin-top:14px;color:var(--ink-soft);font-size:14px;max-width:280px;}
.footer-col{display:flex;flex-direction:column;gap:12px;}
.footer-col h5{font-size:13px;color:#9a9a9f;text-transform:uppercase;letter-spacing:.05em;font-weight:600;margin-bottom:4px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-soft);}
.footer-col a:hover{color:var(--ink);}
.footer-bottom{
  padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;
  font-size:13px;color:#9a9a9f;
}

/* ---------- contact modal ---------- */
.modal-overlay{
  position:fixed;inset:0;z-index:100;
  background:rgba(8,8,10,.72);
  backdrop-filter:blur(4px);
  display:flex;align-items:center;justify-content:center;
  padding:24px;overflow-y:auto;
}
.modal-overlay[hidden]{display:none;}
.modal-card{
  position:relative;
  background:#fff;
  border-radius:20px;
  padding:40px;
  max-width:440px;width:100%;
  margin:auto;
  box-shadow:0 30px 80px -20px rgba(0,0,0,.5);
}
.modal-close{
  position:absolute;top:18px;right:18px;
  background:none;border:none;color:#9a9a9f;
  font-size:26px;line-height:1;cursor:pointer;padding:6px;
}
.modal-close:hover{color:var(--ink);}
.modal-card h3{color:var(--ink);font-size:24px;font-weight:700;letter-spacing:-0.01em;margin-bottom:28px;}
.modal-block{margin-bottom:26px;}
.modal-block:last-of-type{margin-bottom:0;}
.modal-block-title{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:3px;}
.modal-block-sub{font-size:13px;color:var(--ink-soft);margin-bottom:14px;}
.modal-option{
  display:flex;align-items:center;justify-content:center;gap:10px;
  border:1px solid var(--line);border-radius:14px;
  padding:15px 20px;font-size:15px;font-weight:600;color:var(--ink);
  transition:border-color .15s ease, background .15s ease;
}
.modal-option:hover{border-color:#c7c7cc;background:var(--paper-soft);}
.modal-option svg{width:22px;height:22px;flex:none;color:#25D366;}
.modal-form{display:flex;flex-direction:column;gap:10px;}
.modal-form input{
  border:1px solid var(--line);border-radius:12px;
  padding:13px 16px;font-size:14.5px;color:var(--ink);
  outline:none;transition:border-color .15s ease;background:#fff;width:100%;
}
.modal-form input:focus{border-color:var(--violet-1);}
.modal-form input::placeholder{color:#a3a3a8;}
.modal-form-note{color:var(--violet-3);font-size:13px;text-align:center;}
.modal-consent{margin-top:22px;font-size:11.5px;color:#a3a3a8;line-height:1.4;text-align:center;}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;}
  .mobile-menu.open{display:flex;}
  .mission-grid{grid-template-columns:1fr;}
  .cards-grid{grid-template-columns:repeat(2,1fr);}
  .tools-grid{grid-template-columns:repeat(2,1fr);}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:600px){
  .cards-grid{grid-template-columns:1fr;}
  .tools-grid{grid-template-columns:1fr;}
  .why-grid{grid-template-columns:1fr;}
  .clients-marquee,.clients-row,.clients-track{gap:10px;}
  .client-logo{width:150px;height:80px;padding:14px 18px;border-radius:12px;}
  .client-logo img{max-height:46px;}
  @keyframes clients-scroll{to{transform:translateX(calc(-100% - 10px));}}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
}