/* ==========================================================================
   XpertsLinks — design tokens
   Ink navy + signal blue + cyan pulse, echoing the diagonal "X" mark.
   Display: Space Grotesk / Body: Inter / Utility: IBM Plex Mono
   ========================================================================== */

:root{
  --ink:        #0A1930;
  --ink-soft:   #12233F;
  --deep-blue:  #123E75;
  --signal:     #1C7FD1;
  --cyan:       #34C3EE;
  --white:      #FFFFFF;
  --mist:       #F4F8FC;
  --mist-line:  #E1EAF2;
  --slate:      #56698A;

  --grad-brand: linear-gradient(120deg, var(--signal) 0%, var(--cyan) 100%);
  --grad-ink:   linear-gradient(160deg, var(--ink) 0%, var(--ink-soft) 100%);

  --display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --body:    'Inter', 'Segoe UI', sans-serif;
  --mono:    'IBM Plex Mono', monospace;

  --edge: 28px; /* diagonal cut amount used across section dividers */
}

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

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; }
}

.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}

.eyebrow{
  font-family:var(--mono);
  font-size:12.5px;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--signal);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:8px; height:8px;
  border-radius:50%;
  background:var(--grad-brand);
  box-shadow:0 0 0 4px rgba(28,127,209,0.15);
}

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:600;
  color:var(--ink);
  letter-spacing:-0.01em;
}
h1{ font-size:clamp(2.4rem, 4.4vw, 3.7rem); line-height:1.08; }
h2{ font-size:clamp(1.9rem, 3vw, 2.6rem); line-height:1.14; }
h3{ font-size:1.28rem; }
p{ color:var(--slate); }
.lead{ font-size:1.15rem; color:var(--slate); max-width:640px; }

/* ---------------------------------- Buttons --------------------------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--body);
  font-weight:600;
  font-size:0.95rem;
  padding:14px 26px;
  border-radius:6px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}
.btn-primary{
  background:var(--grad-brand);
  color:var(--white);
  box-shadow:0 10px 24px -10px rgba(28,127,209,0.55);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 28px -10px rgba(28,127,209,0.65); }
.btn-ghost{
  background:transparent;
  color:var(--white);
  border-color:rgba(255,255,255,0.35);
}
.btn-ghost:hover{ border-color:var(--white); background:rgba(255,255,255,0.08); }
.btn-dark{
  background:var(--ink);
  color:var(--white);
}
.btn-dark:hover{ transform:translateY(-2px); }

/* ---------------------------------- Header ----------------------------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--mist-line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 32px;
  max-width:1180px;
  margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height:30px; width:auto; }
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-links a{
  font-size:0.92rem;
  font-weight:500;
  color:var(--ink-soft);
  padding:10px 16px;
  border-radius:5px;
  transition:color .15s ease, background .15s ease;
  position:relative;
}
.nav-links a:hover{ color:var(--signal); background:var(--mist); }
.nav-links a.active{ color:var(--signal); }
.nav-links a.active::after{
  content:"";
  position:absolute; left:16px; right:16px; bottom:5px;
  height:2px; background:var(--grad-brand); border-radius:2px;
}
.nav-cta{ display:flex; align-items:center; gap:14px; }
.nav-cta .btn{ padding:10px 20px; font-size:0.88rem; }
.nav-cta .btn-primary{ color:var(--white); box-shadow:none; }
.nav-cta a.phone{
  font-family:var(--mono);
  font-size:0.85rem;
  color:var(--slate);
}

.menu-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:6px;
}
.menu-toggle span{ width:22px; height:2px; background:var(--ink); border-radius:2px; }

@media (max-width:900px){
  .nav-links, .nav-cta .btn-primary, .nav-cta .phone{ display:none; }
  .menu-toggle{ display:flex; }
  .nav-cta{ gap:8px; }
  body.menu-open .nav-links{
    display:flex;
    flex-direction:column;
    position:absolute;
    top:64px; left:0; right:0;
    background:var(--white);
    padding:12px 24px 20px;
    border-bottom:1px solid var(--mist-line);
    gap:2px;
  }
  body.menu-open .nav-cta .btn-primary{
    display:inline-flex;
    margin:0 24px 18px;
  }
}

/* ---------------------------------- Diagonal section system ----------- */
.section{
  position:relative;
  padding:88px 0;
}
.section-dark{
  background:var(--grad-ink);
  color:var(--white);
}
.section-dark h2, .section-dark h3{ color:var(--white); }
.section-dark p{ color:rgba(255,255,255,0.72); }
.section-mist{ background:var(--mist); }

.cut-top-dark{
  clip-path: polygon(0 var(--edge), 100% 0, 100% 100%, 0 100%);
  margin-top:calc(var(--edge) * -1);
}
.cut-bottom-dark{
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - var(--edge)));
  padding-bottom:calc(88px + var(--edge));
}

/* -------------------------------- Signal pulse (signature element) ---- */
.signal{
  position:relative;
  width:100%;
  height:100%;
}
.signal svg{ width:100%; height:100%; display:block; }
.signal-path{
  fill:none;
  stroke-width:1.6;
  stroke:url(#sigGrad);
  stroke-dasharray:6 10;
  opacity:0.55;
  animation:dash 5.5s linear infinite;
}
.signal-path.d2{ animation-duration:7.5s; opacity:0.35; }
.signal-path.d3{ animation-duration:9.5s; opacity:0.25; }
@keyframes dash{
  to{ stroke-dashoffset:-160; }
}
.signal-node{
  fill:var(--cyan);
  animation:pulse-node 2.4s ease-in-out infinite;
}
@keyframes pulse-node{
  0%,100%{ opacity:0.5; r:3; }
  50%{ opacity:1; r:4.6; }
}

.status-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--mono);
  font-size:0.78rem;
  letter-spacing:0.04em;
  color:rgba(255,255,255,0.85);
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.16);
  padding:7px 14px;
  border-radius:100px;
}
.status-pill .dot{
  width:7px; height:7px; border-radius:50%;
  background:#3CE2A0;
  box-shadow:0 0 0 3px rgba(60,226,160,0.22);
  animation:pulse-node 2s ease-in-out infinite;
}

/* ---------------------------------- Hero ------------------------------ */
.hero{
  position:relative;
  background:var(--grad-ink);
  color:var(--white);
  overflow:hidden;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr 0.95fr;
  align-items:center;
  gap:40px;
  padding:100px 0 120px;
}
.hero .signal{ position:absolute; inset:0; opacity:0.9; pointer-events:none; }
.hero-copy{ position:relative; z-index:2; }
.hero-copy h1{ color:var(--white); margin:18px 0 22px; }
.hero-copy .lead{ color:rgba(255,255,255,0.72); margin-bottom:34px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:30px;}
.hero-stats{
  display:flex; gap:38px; margin-top:46px;
  border-top:1px solid rgba(255,255,255,0.14);
  padding-top:28px;
}
.hero-stats div strong{
  display:block; font-family:var(--mono); font-size:1.5rem; color:var(--white);
}
.hero-stats div span{
  font-size:0.8rem; color:rgba(255,255,255,0.55); letter-spacing:0.03em;
}
.hero-visual{
  position:relative; z-index:2;
  aspect-ratio:1/1;
  display:flex; align-items:center; justify-content:center;
}

/* ------------------------------ Page hero (inner pages) --------------- */
.page-hero{
  background:var(--grad-ink);
  color:var(--white);
  padding:64px 0 96px;
  position:relative;
  overflow:hidden;
}
.page-hero .signal{ position:absolute; inset:0; opacity:0.7; }
.page-hero .wrap{ position:relative; z-index:2; }
.page-hero h1{ color:var(--white); margin-top:14px; max-width:680px; }
.page-hero .lead{ color:rgba(255,255,255,0.7); margin-top:16px; }
.crumb{
  font-family:var(--mono); font-size:0.78rem; color:rgba(255,255,255,0.55);
  display:flex; gap:8px; align-items:center;
}

/* ---------------------------------- Grids ------------------------------ */
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:40px; }
@media (max-width:900px){
  .grid-3{ grid-template-columns:1fr; }
  .grid-2{ grid-template-columns:1fr; }
  .hero-grid{ grid-template-columns:1fr; padding:70px 0 90px; }
  .hero-visual{ order:-1; height:260px; }
  .hero-stats{ gap:24px; flex-wrap:wrap; }
}

.card{
  background:var(--white);
  border:1px solid var(--mist-line);
  border-radius:10px;
  padding:32px 28px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position:relative;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 40px -24px rgba(10,25,48,0.25);
  border-color:transparent;
}
.card .icon{
  width:44px; height:44px;
  border-radius:9px;
  background:var(--grad-brand);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px;
  color:var(--white);
}
.card .icon svg{ width:22px; height:22px; }
.card h3{ margin-bottom:10px; font-size:1.12rem; }
.card p{ font-size:0.94rem; }

.card-dark{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:10px;
  padding:30px 26px;
}
.card-dark h3{ color:var(--white); margin-bottom:10px; }
.card-dark p{ color:rgba(255,255,255,0.68); font-size:0.94rem; }
.card-dark .icon{ background:rgba(52,195,238,0.14); color:var(--cyan); }

.section-head{ max-width:640px; margin-bottom:52px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head.center .eyebrow{ justify-content:center; }

/* ------------------------------- Industries list ----------------------- */
.industry-row{
  display:flex; align-items:center; justify-content:space-between;
  padding:26px 0; border-bottom:1px solid var(--mist-line);
  transition:padding-left .2s ease;
}
.industry-row:hover{ padding-left:10px; }
.industry-row .idx{ font-family:var(--mono); color:var(--signal); font-size:0.85rem; width:50px; }
.industry-row h3{ flex:1; font-size:1.15rem; }
.industry-row .arrow{ color:var(--slate); transition:transform .2s ease, color .2s ease; }
.industry-row:hover .arrow{ transform:translateX(4px); color:var(--signal); }

/* --------------------------------- Values / mission -------------------- */
.value-row{ display:flex; gap:20px; padding:20px 0; border-bottom:1px solid rgba(255,255,255,0.1); }
.value-row:last-child{ border-bottom:none; }
.value-row .num{ font-family:var(--mono); color:var(--cyan); font-size:0.85rem; padding-top:3px; }
.value-row h3{ color:var(--white); margin-bottom:6px; font-size:1.05rem; }
.value-row p{ color:rgba(255,255,255,0.65); font-size:0.93rem; }

.mission-list{ display:flex; flex-direction:column; gap:14px; }
.mission-list li{
  display:flex; gap:12px; align-items:flex-start;
  font-size:0.98rem; color:var(--slate);
}
.mission-list li::before{
  content:"";
  flex-shrink:0; margin-top:7px;
  width:7px; height:7px; border-radius:1px;
  background:var(--grad-brand);
  transform:rotate(45deg);
}

/* --------------------------------- CTA band ----------------------------- */
.cta-band{
  background:var(--grad-brand);
  border-radius:16px;
  padding:56px 48px;
  display:flex; align-items:center; justify-content:space-between; gap:30px;
  flex-wrap:wrap;
}
.cta-band h2{ color:var(--white); font-size:1.9rem; margin-bottom:6px; }
.cta-band p{ color:rgba(255,255,255,0.88); }
.cta-band .btn-dark{ flex-shrink:0; }

/* --------------------------------- Contact ------------------------------ */
.contact-grid{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:56px; }
.contact-info .item{ display:flex; gap:16px; padding:22px 0; border-bottom:1px solid var(--mist-line); }
.contact-info .item:first-child{ padding-top:0; }
.contact-info .icon-sm{
  width:38px; height:38px; border-radius:8px; flex-shrink:0;
  background:var(--mist); color:var(--signal);
  display:flex; align-items:center; justify-content:center;
}
.contact-info .icon-sm svg{ width:18px; height:18px; }
.contact-info h3{ font-size:0.98rem; margin-bottom:4px; }
.contact-info p{ font-size:0.94rem; }
.contact-info a{ color:var(--signal); font-weight:500; }

.form-panel{
  background:var(--white);
  border:1px solid var(--mist-line);
  border-radius:14px;
  padding:38px;
  box-shadow:0 30px 60px -34px rgba(10,25,48,0.2);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.field{ margin-bottom:18px; }
.field label{
  display:block; font-size:0.82rem; font-weight:600; color:var(--ink-soft);
  margin-bottom:7px;
}
.field input, .field select, .field textarea{
  width:100%;
  border:1.5px solid var(--mist-line);
  border-radius:7px;
  padding:12px 14px;
  font-family:var(--body);
  font-size:0.94rem;
  color:var(--ink);
  background:var(--white);
  transition:border-color .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--signal);
}
.field textarea{ resize:vertical; min-height:110px; }
.form-panel .btn-primary{ width:100%; justify-content:center; margin-top:6px; }

@media (max-width:900px){
  .contact-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
}

/* --------------------------------- Footer -------------------------------- */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,0.65);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,0.1);
}
.footer-brand img{ height:28px; margin-bottom:16px; }
.footer-brand p{ color:rgba(255,255,255,0.55); font-size:0.9rem; max-width:280px; }
.site-footer h4{
  color:var(--white); font-size:0.85rem; letter-spacing:0.06em;
  text-transform:uppercase; margin-bottom:18px; font-family:var(--mono); font-weight:500;
}
.site-footer ul li{ margin-bottom:11px; }
.site-footer ul li a{ color:rgba(255,255,255,0.6); font-size:0.92rem; transition:color .15s ease; }
.site-footer ul li a:hover{ color:var(--cyan); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top:26px; font-size:0.82rem; color:rgba(255,255,255,0.4);
  flex-wrap:wrap; gap:12px;
}
@media (max-width:900px){
  .footer-grid{ grid-template-columns:1fr 1fr; }
}
@media (max-width:560px){
  .footer-grid{ grid-template-columns:1fr; }
  .section{ padding:64px 0; }
  .cta-band{ padding:38px 26px; }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--signal); outline-offset:2px;
}