:root{
  --bg: #fbfaf8;
  --surface: #ffffff;
  --ink: #1c1f26;
  --ink-dim: #565c6b;
  --ink-faint: #8991a3;
  --line: #e7e4dd;
  --accent: #2451ff;
  --accent-ink: #0f2fa8;
  --radius: 14px;
}
*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing:antialiased;
}
a{ color:inherit; }
.container{
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
h1,h2,h3{ margin:0 0 .5em; line-height:1.15; letter-spacing:-.02em; }
p{ margin:0 0 1em; color: var(--ink-dim); }

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding: 12px 22px;
  border-radius: 100px;
  font-weight:600;
  font-size: 14.5px;
  text-decoration:none;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn-primary{ background: var(--accent); color:#fff; }
.btn-primary:hover{ background: var(--accent-ink); transform: translateY(-1px); }
.btn-ghost{ border-color: var(--line); background: transparent; color: var(--ink); }
.btn-ghost:hover{ border-color: var(--ink-faint); }
.btn-text{ color: var(--accent-ink); padding: 12px 6px; }

/* header */
.site-header{
  position: sticky; top:0; z-index: 20;
  background: rgba(251,250,248,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 24px;
}
.logo{
  font-weight:800; font-size: 19px; text-decoration:none; color: var(--ink);
}
.logo span{ color: var(--accent); }
.nav{ display:flex; gap: 28px; }
.nav a{ text-decoration:none; color: var(--ink-dim); font-size: 14.5px; font-weight:500; transition: color .15s; }
.nav a:hover{ color: var(--ink); }
.nav-cta{ padding: 10px 18px; font-size:13.5px; }

/* hero */
.hero{ padding: 96px 0 64px; }
.hero-inner{ max-width: 760px; }
.eyebrow{
  font-size: 13px; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  color: var(--accent-ink); margin: 0 0 18px;
}
.hero h1{
  font-size: clamp(32px, 4.6vw, 50px);
  font-weight: 800;
}
.hero h1 span{ color: var(--accent); }
.hero .lede{ font-size: 17px; max-width: 56ch; }
.hero-actions{ display:flex; gap: 18px; align-items:center; margin-top: 28px; flex-wrap:wrap; }

/* strip */
.strip{ background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.strip-inner{
  display:grid; grid-template-columns: repeat(4,1fr);
  padding: 30px 24px;
}
.strip-item{ text-align:center; padding: 0 12px; border-right: 1px solid var(--line); }
.strip-item:last-child{ border-right:none; }
.strip-item b{ display:block; font-size: 24px; font-weight:800; }
.strip-item span{ font-size: 13px; color: var(--ink-faint); }

/* services */
.services{ padding: 88px 0; }
.services h2, .about h2, .cases h2, .contact h2{ font-size: clamp(24px, 3vw, 32px); font-weight:800; }
.cards{
  display:grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 36px;
}
.card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover{ transform: translateY(-4px); box-shadow: 0 20px 40px -28px rgba(20,20,30,.25); }
.card-num{
  font-size:12px; font-weight:700; color: var(--accent); letter-spacing:.06em;
  margin-bottom: 14px;
}
.card h3{ font-size: 17px; }
.card p{ font-size: 14px; margin:0; }

/* about */
.about{ background: var(--surface); border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding: 88px 0; }
.about-inner{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items:start; }
.about-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap: 14px; }
.about-list li{
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 14.5px;
  color: var(--ink-dim);
  background: var(--bg);
}

/* cases */
.cases{ padding: 88px 0; }
.case-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; }
.case{ border: 1px solid var(--line); border-radius: var(--radius); overflow:hidden; background: var(--surface); }
.case-thumb{ height: 150px; }
.case-thumb-1{ background: linear-gradient(135deg,#dfe6ff,#c3cfff); }
.case-thumb-2{ background: linear-gradient(135deg,#dff5ea,#c3e9d4); }
.case-thumb-3{ background: linear-gradient(135deg,#fff0d9,#ffe0b3); }
.case h3{ font-size: 15.5px; margin: 18px 18px 6px; }
.case p{ font-size: 13.5px; margin: 0 18px 18px; }

/* contact */
.contact{ background: var(--surface); border-top:1px solid var(--line); padding: 88px 0 100px; }
.contact-inner{ display:grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-details{ list-style:none; margin: 24px 0 0; padding:0; display:flex; flex-direction:column; gap:14px; }
.contact-details li{ display:flex; gap: 10px; font-size: 14.5px; }
.contact-details span{ color: var(--ink-faint); min-width: 70px; }
.contact-details a{ text-decoration:none; color: var(--accent-ink); font-weight:600; }

.contact-form{ display:flex; flex-direction:column; gap:16px; }
.contact-form label{ display:flex; flex-direction:column; gap:8px; font-size:13px; color: var(--ink-dim); font-weight:600; }
.contact-form input, .contact-form textarea{
  font-family: inherit; font-size: 14.5px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus{
  outline: none; border-color: var(--accent);
}
.contact-form button{ align-self:flex-start; margin-top:4px; border:none; }
.form-note{ font-size: 13px; color: var(--accent-ink); min-height: 18px; margin:0; }

/* footer */
.site-footer{ border-top: 1px solid var(--line); }
.footer-inner{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  padding: 26px 24px;
  font-size: 13px; color: var(--ink-faint);
}

@media (max-width: 860px){
  .nav{ display:none; }
  .cards{ grid-template-columns: repeat(2,1fr); }
  .strip-inner{ grid-template-columns: repeat(2,1fr); gap: 20px; }
  .strip-item{ border-right:none; border-bottom: 1px solid var(--line); padding-bottom:16px; }
  .about-inner, .contact-inner{ grid-template-columns: 1fr; }
  .case-grid{ grid-template-columns: 1fr; }
}