/* =========================================================
   DIGITAL AGENCY SITE — design tokens & shared styles
   Concept: "Modular blueprint" — services as connected build
   modules on a technical drawing grid.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@500;700;800&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root{
  --ink:        #171717;   /* near-black text */
  --paper:      #FFFFFF;   /* pure white background */
  --paper-2:    #FAFAFA;   /* faint off-white for hover/cards */
  --accent:     #171717;   /* accent = ink itself; no color accent */
  --accent-ink: #FFFFFF;   /* text-on-accent */
  --teal:       #8A8A8A;   /* muted grey — the only "signal" tone, used sparingly */
  --line:       #E9E9E7;   /* hairline rules */
  --line-dark:  rgba(255,255,255,0.14);

  --display: 'Manrope', system-ui, sans-serif;
  --body:    'Inter', system-ui, sans-serif;
  --mono:    'IBM Plex Mono', ui-monospace, monospace;

  --radius: 2px;
  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; cursor:pointer; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--display); margin:0; line-height:1.08; letter-spacing:-0.01em; }
p{ margin:0; }

:focus-visible{ outline:2px solid var(--accent); outline-offset:3px; }

.wrap{ max-width:var(--container); margin:0 auto; padding:0 28px; }
.eyebrow{
  font-family:var(--mono); font-size:11.5px; letter-spacing:.14em; text-transform:uppercase;
  color:#999; display:flex; align-items:center; gap:10px; margin-bottom:18px; font-weight:500;
}
.eyebrow::before{ content:''; width:16px; height:1px; background:#ccc; display:inline-block; }

section{ padding:132px 0; border-bottom:1px solid var(--line); }
section:last-of-type{ border-bottom:none; }
.section-head{ max-width:640px; margin-bottom:72px; }
.section-head h2{ font-size:clamp(28px,4vw,42px); font-weight:800; }
.section-head p{ margin-top:18px; font-size:17px; color:#666; font-weight:400; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:15px 28px; border-radius:var(--radius); font-weight:600; font-size:14.5px;
  border:1px solid transparent; transition:opacity .15s ease, background .15s ease;
}
.btn:hover{ opacity:.82; }
.btn-primary{ background:var(--ink); color:var(--paper); }
.btn-primary:hover{ background:#000; opacity:1; }
.btn-ghost{ border-color:var(--line); color:var(--ink); }
.btn-ghost:hover{ background:var(--paper-2); opacity:1; }
.btn-light{ border-color:var(--line-dark); color:var(--paper); }
.btn-light:hover{ background:var(--paper); color:var(--ink); opacity:1; }

/* ---------- header ---------- */
header.site{
  position:sticky; top:0; z-index:50;
  background:rgba(242,244,241,.92); backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav{ display:flex; align-items:center; justify-content:space-between; padding:18px 0; }
.logo{ font-family:var(--display); font-weight:800; font-size:20px; letter-spacing:-.01em; }
.logo span{ color:var(--teal); }
.nav-links{ display:flex; gap:30px; font-size:14.5px; font-weight:500; }
.nav-links a{ position:relative; padding:4px 0; }
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px; background:var(--accent);
  transition:width .2s ease;
}
.nav-links a:hover::after{ width:100%; }
.nav-right{ display:flex; align-items:center; gap:18px; }

.lang-switch{ position:relative; }
.lang-btn{
  display:flex; align-items:center; gap:6px; font-family:var(--mono); font-size:12.5px;
  border:1px solid var(--line); padding:8px 12px; border-radius:var(--radius); background:transparent;
  color:var(--ink);
}
.lang-menu{
  position:absolute; right:0; top:calc(100% + 8px); background:var(--paper);
  border:1px solid var(--line); border-radius:var(--radius); min-width:170px;
  box-shadow:0 12px 28px rgba(16,25,46,.12); display:none; overflow:hidden; z-index:60;
}
.lang-menu.open{ display:block; }
.lang-menu button, .lang-menu a{
  display:block; width:100%; text-align:left; padding:10px 14px; background:none; border:none; font-size:14px;
  color:var(--ink); text-decoration:none; box-sizing:border-box;
}
.lang-menu button:hover, .lang-menu a:hover{ background:var(--paper-2); }
.lang-menu button[aria-current="true"], .lang-menu a[aria-current="true"]{ color:var(--teal); font-weight:600; }

.burger{ display:none; background:none; border:none; padding:6px; }
.burger span{ display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; }

/* ---------- promo banner ---------- */
.promo{
  background:var(--ink); color:var(--paper);
  font-size:13px; text-align:center; padding:11px 16px; font-weight:400; letter-spacing:.01em;
}
.promo strong{ color:var(--paper); font-weight:700; }

/* ---------- hero ---------- */
.hero{
  padding:140px 0 120px; border-bottom:1px solid var(--line);
}
.hero-grid{ display:grid; grid-template-columns:1.15fr .85fr; gap:80px; align-items:center; }
.hero h1{ font-size:clamp(34px,5vw,54px); font-weight:800; letter-spacing:-0.02em; }
.hero h1 em{ font-style:normal; color:var(--ink); }
.hero p.lead{ margin-top:24px; font-size:17px; max-width:480px; color:#666; font-weight:400; }
.hero-ctas{ display:flex; gap:14px; margin-top:40px; flex-wrap:wrap; }

/* pipeline signature diagram */
.pipeline{ display:flex; flex-direction:column; gap:0; }
.pipeline-node{
  display:flex; align-items:center; gap:18px; padding:22px 4px; position:relative;
}
.pipeline-node + .pipeline-node{ border-top:1px solid var(--line); }
.pipeline-node .idx{
  font-family:var(--mono); font-size:12px; color:#bbb; width:26px; flex:none;
}
.pipeline-node .dot{
  width:6px; height:6px; border-radius:50%; background:#ddd; flex:none;
  transition:background .3s ease;
}
.pipeline-node.active .dot{ background:var(--ink); }
.pipeline-node b{ font-family:var(--display); font-size:16px; font-weight:700; }
.pipeline-node small{ display:block; color:#999; font-size:12.5px; margin-top:3px; font-weight:400; }
.pipeline-connector{ display:none; }

/* ---------- services grid ---------- */
.services-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.service-card{
  background:var(--paper); padding:40px 30px; display:flex; flex-direction:column; gap:16px; min-height:250px;
  transition:background .2s ease;
}
.service-card:hover{ background:var(--paper-2); }
.service-card .num{ font-family:var(--mono); font-size:12px; color:#bbb; }
.service-card h3{ font-size:19px; font-weight:700; }
.service-card p{ font-size:14px; color:#777; flex:1; font-weight:400; }
.service-card a.more{ font-size:13.5px; font-weight:600; color:var(--ink); border-bottom:1px solid var(--ink); align-self:flex-start; }

/* ---------- advantages ---------- */
.advantages{ display:grid; grid-template-columns:repeat(3,1fr); gap:48px 32px; }
.advantage b{ display:block; font-family:var(--display); font-size:17px; margin-bottom:10px; font-weight:700; }
.advantage p{ font-size:14.5px; color:#777; font-weight:400; }
.advantage .mark{ font-family:var(--mono); font-size:12px; color:#bbb; margin-bottom:12px; display:block; }

/* ---------- process ---------- */
.process{ display:grid; grid-template-columns:repeat(5,1fr); gap:0; }
.process-step{ border-left:1px solid var(--line); padding:0 20px 0 24px; position:relative; }
.process-step:first-child{ border-left:none; padding-left:0; }
.process-step .n{ font-family:var(--mono); font-size:13px; color:#bbb; }
.process-step h4{ font-size:16px; margin:12px 0 8px; font-weight:700; }
.process-step p{ font-size:13.5px; color:#777; font-weight:400; }

/* ---------- portfolio ---------- */
.portfolio-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); }
.portfolio-card{ background:var(--paper); display:block; color:inherit; text-decoration:none; transition:opacity .15s ease; }
.portfolio-card:hover{ opacity:.85; }
.portfolio-thumb{ aspect-ratio:4/3; background:var(--paper-2); position:relative; overflow:hidden; border-bottom:1px solid var(--line); }
.portfolio-thumb span{ position:absolute; bottom:16px; left:20px; color:#bbb; font-family:var(--mono); font-size:11.5px; }
.portfolio-body{ padding:24px 26px; }
.portfolio-body h4{ font-size:16px; margin-bottom:8px; font-weight:700; }
.portfolio-body p{ font-size:13.5px; color:#777; font-weight:400; }
.portfolio-tags{ display:flex; gap:8px; margin-top:14px; flex-wrap:wrap; }
.portfolio-tags span{
  font-family:var(--mono); font-size:11px; padding:4px 9px; border:1px solid var(--line); border-radius:2px; color:#999;
}

/* ---------- testimonials ---------- */
.testi-wrap{ position:relative; }
.testi-track{ overflow:hidden; }
.testi-slide{
  display:none; border:1px solid var(--line); background:var(--paper); padding:52px; max-width:760px;
}
.testi-slide.active{ display:block; }
.testi-slide p.quote{ font-family:var(--display); font-size:21px; font-weight:600; line-height:1.45; letter-spacing:-0.01em; }
.testi-slide .who{ margin-top:24px; font-family:var(--mono); font-size:12px; color:#999; }
.testi-nav{ display:flex; gap:10px; margin-top:24px; }
.testi-nav button{ width:6px; height:6px; border-radius:50%; border:none; background:#ddd; }
.testi-nav button[aria-current="true"]{ background:var(--ink); }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; text-align:left; background:none; border:none; padding:28px 0; display:flex;
  align-items:center; justify-content:space-between; font-family:var(--display); font-size:17px; font-weight:700;
}
.faq-q .plus{ font-family:var(--mono); color:#bbb; transition:transform .2s ease; font-weight:400; }
.faq-item[data-open="true"] .plus{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a p{ padding-bottom:28px; font-size:14.5px; color:#777; max-width:640px; font-weight:400; }

/* ---------- contact form ---------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:80px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:18px; }
.field{ display:flex; flex-direction:column; gap:7px; }
.field.full{ grid-column:1/-1; }
.field label{ font-size:12.5px; font-family:var(--mono); color:#999; }
.field input, .field select, .field textarea{
  border:1px solid var(--line); background:var(--paper); padding:13px 14px; border-radius:var(--radius);
  font-family:var(--body); font-size:14.5px; color:var(--ink);
}
.field textarea{ resize:vertical; min-height:100px; }
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--ink); }
.form-note{ font-size:12px; color:#aaa; margin-top:16px; font-weight:400; }
.form-status{ margin-top:16px; font-size:14px; font-weight:600; display:none; }
.form-status.ok{ color:var(--ink); display:block; }
.form-status.error{ color:#b3261e; display:block; }
.contact-info{ display:flex; flex-direction:column; gap:26px; }
.contact-info .row{ display:flex; gap:14px; align-items:flex-start; font-size:14.5px; }
.contact-info .row b{ display:block; font-family:var(--mono); font-size:11px; color:#999; text-transform:uppercase; letter-spacing:.08em; margin-bottom:5px; font-weight:500; }
.map-frame{ border:1px solid var(--line); height:220px; background:var(--paper-2); }
.socials{ display:flex; gap:12px; }
.socials a{ width:36px; height:36px; border:1px solid var(--line); display:flex; align-items:center; justify-content:center; border-radius:50%; font-size:12px; color:#999; }
.socials a:hover{ background:var(--ink); color:var(--paper); border-color:var(--ink); }

/* ---------- footer ---------- */
footer.site{ background:var(--ink); color:var(--paper); padding:72px 0 32px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:48px; padding-bottom:44px; border-bottom:1px solid var(--line-dark); }
.footer-grid h5{ font-family:var(--mono); font-size:11.5px; text-transform:uppercase; letter-spacing:.1em; color:#888; margin-bottom:18px; font-weight:500; }
.footer-grid ul li{ margin-bottom:11px; font-size:14px; font-weight:400; }
.footer-grid ul a:hover{ color:#ccc; }
.footer-bottom{ display:flex; justify-content:space-between; padding-top:26px; font-size:12.5px; color:#777; flex-wrap:wrap; gap:10px; }

/* ---------- generic service page ---------- */
.service-hero{ padding:120px 0 80px; border-bottom:1px solid var(--line); }
.service-hero h1{ font-size:clamp(30px,4.6vw,46px); font-weight:800; max-width:720px; letter-spacing:-0.02em; }
.service-hero p.lead{ margin-top:20px; font-size:17px; max-width:600px; color:#666; font-weight:400; }
.feature-list{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.feature-list li{
  background:var(--paper); padding:24px 26px; display:flex; gap:16px; align-items:flex-start; font-size:14.5px;
}
.feature-list li .tick{ color:#bbb; font-family:var(--mono); flex:none; }
.notice-box{
  border:1px solid var(--line); background:var(--paper-2); padding:22px 26px; border-radius:var(--radius);
  font-size:14.5px; display:flex; gap:14px; align-items:flex-start; color:#555;
}
.notice-box .mark{ font-family:var(--mono); color:#999; font-weight:700; }
.crumb{ font-family:var(--mono); font-size:12px; color:#999; margin-bottom:22px; }
.crumb a{ color:#999; }

/* ---------- admin ---------- */
body.admin{ background:#FAFAFA; }
.admin-shell{ display:grid; grid-template-columns:250px 1fr; min-height:100vh; }
.admin-side{ background:var(--ink); color:var(--paper); padding:30px 22px; }
.admin-side .logo{ color:var(--paper); margin-bottom:36px; display:block; }
.admin-side nav a{
  display:flex; align-items:center; gap:10px; padding:12px 12px; border-radius:var(--radius); font-size:14px; margin-bottom:2px; color:#999;
}
.admin-side nav a.active, .admin-side nav a:hover{ background:rgba(255,255,255,.06); color:var(--paper); }
.admin-main{ padding:44px 48px; }
.admin-topbar{ display:flex; justify-content:space-between; align-items:center; margin-bottom:40px; }
.admin-topbar h1{ font-size:24px; font-weight:800; }
.admin-card{ background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:28px; margin-bottom:24px; }
table.admin-table{ width:100%; border-collapse:collapse; font-size:14px; }
table.admin-table th{ text-align:left; font-family:var(--mono); font-size:11px; text-transform:uppercase; color:#999; padding:12px; border-bottom:1px solid var(--line); font-weight:500; }
table.admin-table td{ padding:14px 12px; border-bottom:1px solid var(--line); }
.badge{ font-family:var(--mono); font-size:11px; padding:3px 9px; border-radius:20px; }
.badge.new{ background:#f0f0f0; color:#555; }
.badge.done{ background:#eee; color:#777; }
.admin-tabs{ display:flex; gap:6px; margin-bottom:24px; }
.admin-tabs button{ padding:10px 18px; border:1px solid var(--line); background:var(--paper); border-radius:var(--radius); font-size:13.5px; }
.admin-tabs button.active{ background:var(--ink); color:var(--paper); border-color:var(--ink); }
.admin-grid2{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-grid{ grid-template-columns:1fr; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .advantages{ grid-template-columns:repeat(2,1fr); }
  .process{ grid-template-columns:repeat(3,1fr); }
  .process-step:nth-child(4){ border-left:none; padding-left:0; margin-top:24px; }
  .portfolio-grid{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .feature-list{ grid-template-columns:1fr; }
  .admin-shell{ grid-template-columns:1fr; }
  .admin-side{ display:none; }
}
@media (max-width:640px){
  .nav-links{ display:none; }
  .burger{ display:block; }
  .services-grid{ grid-template-columns:1fr; }
  .advantages{ grid-template-columns:1fr; }
  .process{ grid-template-columns:1fr; }
  .process-step{ border-left:none; padding-left:0; margin-top:20px; }
  .process-step:first-child{ margin-top:0; }
  .portfolio-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  section{ padding:56px 0; }
}