/* =========================================================
   INEI — Design Tokens
   Palette named after "иней" (Russian: hoarfrost) — light,
   crystalline, precise. Blue is the brand's core accent.
   ========================================================= */
:root{
  --inei-frost-50:  #F6FAFF;
  --inei-frost-100: #EAF2FF;
  --inei-frost-200: #D9E8FC;
  --inei-ink:        #0E1B2E;
  --inei-ink-soft:   #55637C;
  --inei-ink-faint:  #8593AA;
  --inei-blue:       #1C63E0;   /* overridden inline from Customizer */
  --inei-blue-deep:  #0D3E96;   /* overridden inline from Customizer */
  --inei-cyan:       #7FE3F0;
  --inei-line:       #E1EAF7;
  --inei-white:      #FFFFFF;

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body:    "Inter", "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", "Courier New", monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --container: 1180px;
  --shadow-card: 0 1px 2px rgba(14,27,46,.04), 0 12px 30px -14px rgba(14,27,46,.14);
  --shadow-float: 0 20px 60px -20px rgba(28,99,224,.35);
}

/* =========================================================
   Reset / Base
   ========================================================= */
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

body{
  font-family:var(--font-body);
  color:var(--inei-ink);
  background:var(--inei-frost-50);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--inei-ink);
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{ font-size:clamp(2.1rem,4.4vw,3.4rem); font-weight:700; }
h2{ font-size:clamp(1.7rem,3vw,2.4rem); font-weight:700; }
h3{ font-size:1.2rem; font-weight:600; }
p{ margin:0 0 1em; color:var(--inei-ink-soft); }
a{ text-decoration:none; color:var(--inei-blue); transition:color .15s ease; }
ul{ margin:0; padding:0; list-style:none; }

::selection{ background:var(--inei-cyan); color:var(--inei-ink); }

:focus-visible{
  outline:2.5px solid var(--inei-blue);
  outline-offset:3px;
  border-radius:4px;
}

.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--inei-blue);
  text-transform:uppercase;
  margin-bottom:.9em;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--font-body);
  font-weight:600;
  font-size:.98rem;
  padding:14px 26px;
  border-radius:999px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg, var(--inei-blue), var(--inei-blue-deep));
  color:#fff;
  box-shadow:var(--shadow-float);
}
.btn-primary:hover{ transform:translateY(-2px); color:#fff; }
.btn-ghost{
  background:var(--inei-white);
  color:var(--inei-ink);
  border-color:var(--inei-line);
}
.btn-ghost:hover{ border-color:var(--inei-blue); color:var(--inei-blue); }
.btn-outline{
  background:transparent;
  color:var(--inei-blue);
  border-color:var(--inei-blue);
}
.btn-outline:hover{ background:var(--inei-blue); color:#fff; }
.btn-small{ padding:10px 20px; font-size:.88rem; }
.btn-large{ padding:17px 32px; font-size:1.02rem; }

/* =========================================================
   Header
   ========================================================= */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(246,250,255,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--inei-line);
  box-shadow:0 8px 30px -20px rgba(14,27,46,.25);
}
.site-header-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:24px; padding:16px 24px;
}
.site-logo-text{
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-display); font-weight:700; font-size:1.25rem;
  color:var(--inei-ink);
}
.logo-mark{ color:var(--inei-blue); display:inline-flex; }
.custom-logo-link img{ max-height:44px; width:auto; display:block; }

.branding-logo-wrap{ display:flex; align-items:center; }
.branding-logo-wrap.has-site-title{ gap:12px; }
.site-title-tagline{ display:flex; flex-direction:column; line-height:1.2; }
.site-title-text{
  font-family:var(--font-display); font-weight:700; font-size:1.15rem; color:var(--inei-ink);
}
.site-title-text:hover{ color:var(--inei-blue); }
.site-tagline-text{
  margin:2px 0 0; font-size:.78rem; color:var(--inei-ink-faint); font-family:var(--font-body); font-weight:500;
}
@media (max-width: 480px){
  .site-tagline-text{ display:none; }
}

.primary-navigation .nav-menu{
  display:flex; align-items:center; gap:2px; flex-wrap:wrap;
}
.primary-navigation .nav-menu > li > a{
  display:inline-block; padding:10px 16px; border-radius:999px;
  color:var(--inei-ink-soft); font-weight:500; font-size:.96rem;
}
.primary-navigation .nav-menu > li > a:hover,
.primary-navigation .nav-menu > li.current-menu-item > a{
  color:var(--inei-blue); background:var(--inei-frost-100);
}
.primary-navigation ul ul{
  position:absolute; background:#fff; border:1px solid var(--inei-line);
  border-radius:var(--radius-sm); padding:8px; box-shadow:var(--shadow-card);
  min-width:200px; opacity:0; visibility:hidden; transform:translateY(6px);
  transition:.15s ease;
}
.primary-navigation li{ position:relative; }
.primary-navigation li:hover > ul{ opacity:1; visibility:visible; transform:translateY(0); }
.primary-navigation ul ul a{ display:block; padding:9px 12px; border-radius:6px; }
.primary-navigation ul ul a:hover{ background:var(--inei-frost-100); }

.site-header-actions{ display:flex; align-items:center; gap:14px; }
.menu-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:42px; height:42px; border-radius:10px; border:1px solid var(--inei-line);
  background:#fff; cursor:pointer;
}
.menu-toggle-bar{ width:18px; height:2px; background:var(--inei-ink); margin:0 auto; transition:.2s ease; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2){ opacity:0; }
.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

@media (max-width: 900px){
  .menu-toggle{ display:flex; }
  .primary-navigation{
    position:fixed; inset:76px 16px auto 16px; background:#fff;
    border:1px solid var(--inei-line); border-radius:var(--radius-md);
    box-shadow:var(--shadow-card); padding:14px;
    opacity:0; visibility:hidden; transform:translateY(-8px);
    transition:.2s ease; max-height:calc(100vh - 100px); overflow:auto;
  }
  .primary-navigation.is-open{ opacity:1; visibility:visible; transform:translateY(0); }
  .primary-navigation .nav-menu{ flex-direction:column; align-items:stretch; gap:2px; }
  .primary-navigation .nav-menu > li > a{ padding:12px 14px; }
  .primary-navigation ul ul{ position:static; box-shadow:none; border:none; opacity:1; visibility:visible; transform:none; padding-left:10px; display:none; }
  .primary-navigation li.submenu-open > ul{ display:block; }
  .site-header-actions .btn-small{ display:none; }
}

#frost-noise{ display:none; }

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position:relative; overflow:hidden;
  padding:96px 0 72px;
  background:
    radial-gradient(60% 55% at 82% 8%, var(--inei-frost-200) 0%, transparent 70%),
    radial-gradient(45% 40% at 5% 90%, var(--inei-frost-100) 0%, transparent 70%),
    var(--inei-frost-50);
}
.hero-crystal-bg{
  position:absolute; top:50%; right:-8%; transform:translateY(-50%);
  color:var(--inei-blue); opacity:.14; pointer-events:none;
}
.crystal-lg{ width:min(56vw,640px); height:auto; }
.hero-inner{ position:relative; max-width:760px; }
.hero-title{ margin-bottom:.4em; }
.hero-subtitle{ font-size:1.14rem; max-width:600px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin:30px 0 52px; }

.hero-stats{ display:flex; gap:44px; flex-wrap:wrap; border-top:1px solid var(--inei-line); padding-top:28px; }
.hero-stat{ display:flex; flex-direction:column; }
.hero-stat-number{ font-family:var(--font-display); font-size:1.9rem; font-weight:700; color:var(--inei-blue); }
.hero-stat-label{ font-size:.86rem; color:var(--inei-ink-faint); }

/* =========================================================
   Sections (shared)
   ========================================================= */
.section{ padding:88px 0; }
.section-head{ max-width:640px; margin-bottom:48px; }
.section-lead{ font-size:1.05rem; }

.reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* Services */
.services-section{ background:var(--inei-white); }
.services-grid{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:22px;
}
.service-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--inei-frost-50);
  border:1px solid var(--inei-line);
  border-radius:var(--radius-lg);
  padding:30px 26px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.service-card:hover{
  transform:translateY(-6px);
  background:#fff;
  border-color:var(--inei-blue);
  box-shadow:var(--shadow-card);
}
.service-tag{
  display:inline-block; align-self:flex-start; font-family:var(--font-mono); font-size:.76rem; font-weight:600;
  color:var(--inei-blue); background:var(--inei-frost-100);
  padding:5px 10px; border-radius:6px; margin-bottom:16px; letter-spacing:.04em;
}
.service-card h3{ margin-bottom:.5em; }
.service-card p{ font-size:.95rem; margin-bottom:1.2em; }
.service-list{ margin-top:auto; padding-top:2px; }
.service-list li{
  font-size:.88rem; color:var(--inei-ink-soft);
  padding-left:20px; position:relative; margin-bottom:8px;
}
.service-list li::before{
  content:""; position:absolute; left:0; top:.55em; width:8px; height:8px;
  border-radius:50%; background:var(--inei-cyan); box-shadow:0 0 0 3px var(--inei-frost-100);
}

/* About */
.about-section{ background:var(--inei-frost-50); }
.about-grid{
  display:grid; grid-template-columns:.8fr 1.2fr; gap:56px; align-items:center;
}
.about-crystal-frame{
  aspect-ratio:1/1; border-radius:var(--radius-lg);
  background:linear-gradient(150deg, var(--inei-blue), var(--inei-blue-deep));
  display:flex; align-items:center; justify-content:center;
  color:rgba(255,255,255,.9); box-shadow:var(--shadow-float);
}
.crystal-md{ width:56%; height:56%; }
.about-content p{ font-size:1.02rem; }

/* Process */
.process-section{ background:var(--inei-white); }
.process-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:30px; }
.process-step{ border-top:2px solid var(--inei-blue); padding-top:18px; }
.process-index{
  font-family:var(--font-mono); font-size:.85rem; color:var(--inei-ink-faint); display:block; margin-bottom:10px;
}

/* Blog */
.blog-section{ background:var(--inei-frost-50); }
.blog-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:26px; }
.blog-card{
  background:#fff; border:1px solid var(--inei-line); border-radius:var(--radius-md);
  overflow:hidden; transition:box-shadow .2s ease, transform .2s ease;
}
.blog-card:hover{ box-shadow:var(--shadow-card); transform:translateY(-4px); }
.blog-card-media{ display:block; aspect-ratio:16/10; background:var(--inei-frost-100); overflow:hidden; }
.blog-card-media img{ width:100%; height:100%; object-fit:cover; display:block; }
.blog-card-placeholder{ width:100%; height:100%; display:flex; align-items:center; justify-content:center; color:var(--inei-blue); opacity:.5; }
.blog-card-body{ padding:22px 22px 26px; }
.blog-card-date{ font-family:var(--font-mono); font-size:.78rem; color:var(--inei-ink-faint); }
.blog-card-body h3{ margin:.4em 0; }
.blog-card-body h3 a{ color:var(--inei-ink); }
.blog-card-body h3 a:hover{ color:var(--inei-blue); }
.blog-card-body p{ font-size:.92rem; margin-bottom:.6em; }
.read-more{ font-weight:600; font-size:.9rem; }

/* CTA */
.cta-section{ padding:80px 0; }
.cta-inner{
  position:relative; text-align:center; max-width:680px; margin:0 auto;
  background:linear-gradient(150deg, var(--inei-blue), var(--inei-blue-deep));
  color:#fff; border-radius:var(--radius-lg); padding:60px 40px; overflow:hidden;
}
.cta-inner h2, .cta-inner p{ color:#fff; }
.cta-inner p{ opacity:.9; }
.cta-crystal{ width:44px; height:44px; margin-bottom:18px; opacity:.85; }
.cta-actions{ display:flex; justify-content:center; flex-wrap:wrap; gap:14px; margin-top:20px; }
.cta-inner .btn-primary{ background:#fff; color:var(--inei-blue-deep); box-shadow:none; }
.cta-inner .btn-ghost{ background:transparent; border-color:rgba(255,255,255,.5); color:#fff; }
.cta-inner .btn-ghost:hover{ border-color:#fff; color:#fff; }

/* =========================================================
   Inner pages (banner, content, sidebar)
   ========================================================= */
.page-banner{
  padding:64px 0 46px; text-align:center;
  background:radial-gradient(70% 100% at 50% 0%, var(--inei-frost-200), transparent 70%), var(--inei-frost-50);
  border-bottom:1px solid var(--inei-line);
}
.page-banner h1{ margin-bottom:.3em; }
.page-banner-sub{ max-width:560px; margin:0 auto; }

.page-content-wrap{ padding:64px 24px; }
.page-content-wrap.has-sidebar{ display:grid; grid-template-columns:1fr 300px; gap:56px; align-items:start; }
.entry-content{ font-size:1.02rem; }
.entry-content > *:first-child{ margin-top:0; }
.entry-content h2{ margin-top:1.4em; }
.entry-content img{ border-radius:var(--radius-md); }
.entry-content a{ text-decoration:underline; text-underline-offset:3px; }
.page-thumbnail{ margin-bottom:32px; border-radius:var(--radius-lg); overflow:hidden; }
.page-thumbnail img{ width:100%; display:block; }

.entry-meta{ display:flex; gap:10px; font-size:.86rem; color:var(--inei-ink-faint); margin-bottom:18px; font-family:var(--font-mono); }
.entry-footer{ margin-top:36px; padding-top:18px; border-top:1px solid var(--inei-line); font-size:.86rem; color:var(--inei-ink-faint); display:flex; gap:18px; flex-wrap:wrap; }
.entry-footer a{ color:var(--inei-ink-soft); }

.post-navigation{ display:flex; justify-content:space-between; gap:20px; margin:44px 0; padding-top:24px; border-top:1px solid var(--inei-line); font-weight:600; flex-wrap:wrap; }

.blog-grid-list{ grid-template-columns:1fr; }

/* Sidebar & widgets */
.widget{ margin-bottom:34px; padding-bottom:34px; border-bottom:1px solid var(--inei-line); }
.widget:last-child{ border-bottom:none; }
.widget-title{ font-family:var(--font-display); font-size:1.02rem; margin-bottom:.9em; }
.widget ul li{ padding:7px 0; border-bottom:1px dashed var(--inei-line); font-size:.94rem; }
.widget ul li:last-child{ border-bottom:none; }
.widget select, .widget input[type="text"], .widget input[type="email"], .widget input[type="search"]{
  width:100%; padding:10px 12px; border:1px solid var(--inei-line); border-radius:8px; font-family:var(--font-body);
}
.widget table{ width:100%; border-collapse:collapse; font-size:.86rem; }
.widget caption{ text-align:left; font-weight:600; padding-bottom:8px; }
.widget td, .widget th{ padding:6px; text-align:center; }
.widget .wp-calendar-nav{ display:flex; justify-content:space-between; margin-top:8px; font-size:.8rem; }

/* Search form */
.search-form{ display:flex; gap:8px; }
.search-field{ flex:1; padding:12px 16px; border:1px solid var(--inei-line); border-radius:999px; font-family:var(--font-body); background:#fff; }
.search-submit{ padding:12px 20px; border-radius:999px; border:none; background:var(--inei-blue); color:#fff; font-weight:600; cursor:pointer; }

/* Pagination */
.pagination{ display:flex; gap:8px; margin-top:36px; flex-wrap:wrap; }
.pagination .page-numbers{
  display:inline-flex; align-items:center; justify-content:center;
  min-width:40px; height:40px; padding:0 12px; border-radius:10px;
  border:1px solid var(--inei-line); font-weight:600; font-size:.9rem; color:var(--inei-ink-soft);
}
.pagination .page-numbers.current, .pagination .page-numbers:hover{ background:var(--inei-blue); border-color:var(--inei-blue); color:#fff; }

/* Comments */
.comments-area{ margin-top:56px; padding-top:40px; border-top:1px solid var(--inei-line); }
.comment-list{ margin-bottom:30px; }
.comment-list .comment{ padding:20px 0; border-bottom:1px solid var(--inei-line); }
.comment-list ol.children{ padding-left:32px; }
.comment-form input, .comment-form textarea{
  width:100%; padding:12px 14px; border:1px solid var(--inei-line); border-radius:10px;
  font-family:var(--font-body); margin-bottom:14px; background:#fff;
}
.comment-form textarea{ min-height:140px; }
.comment-reply-title{ font-family:var(--font-display); margin-bottom:.6em; }

/* 404 */
.error-404-section{ padding:110px 0; text-align:center; }
.error-crystal{ width:52px; height:52px; color:var(--inei-blue); margin-bottom:14px; }
.error-desc{ max-width:480px; margin:0 auto 30px; }
.error-404-section .search-form{ max-width:420px; margin:0 auto 26px; }

/* Footer */
.site-footer{
  position:relative; overflow:hidden; margin-top:40px;
  background:var(--inei-ink); color:#c9d4e6; padding-top:72px;
}
.footer-crystal{ position:absolute; top:-30px; right:-20px; color:#fff; opacity:.05; }
.footer-top{ position:relative; display:grid; grid-template-columns:1.1fr 2fr; gap:56px; padding-bottom:52px; border-bottom:1px solid rgba(255,255,255,.1); }
.footer-brand .site-logo-text{ color:#fff; }
.footer-brand .logo-mark{ color:var(--inei-cyan); }
.footer-desc{ margin:18px 0 20px; font-size:.94rem; color:#9fb0cc; max-width:320px; }
.social-links{ display:flex; gap:14px; flex-wrap:wrap; }
.social-link{ font-size:.86rem; font-weight:600; color:#c9d4e6; border-bottom:1px solid rgba(255,255,255,.25); padding-bottom:2px; }
.social-link:hover{ color:var(--inei-cyan); border-color:var(--inei-cyan); }

.footer-widgets{ display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:30px; }
.footer-widgets .widget-title{ color:#fff; font-size:.92rem; text-transform:uppercase; letter-spacing:.05em; font-family:var(--font-mono); font-weight:600; }
.footer-widget-col a{ color:#9fb0cc; font-size:.92rem; }
.footer-widget-col a:hover{ color:var(--inei-cyan); }
.footer-widget-col ul li{ padding:6px 0; }
.footer-contact-list li{ color:#9fb0cc; font-size:.92rem; padding:6px 0; }

.footer-bottom{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
  padding:26px 24px; font-size:.82rem; color:#7d8bab;
}
.footer-nav-menu{ display:flex; gap:20px; flex-wrap:wrap; }
.footer-nav-menu a{ color:#9fb0cc; }
.footer-nav-menu a:hover{ color:var(--inei-cyan); }

/* Front-page bottom widgets (only rendered if theme's front sidebar populated) */
.front-page-widgets{ padding:48px 24px; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 960px){
  .about-grid{ grid-template-columns:1fr; }
  .about-crystal-frame{ max-width:280px; margin:0 auto; }
  .page-content-wrap.has-sidebar{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr; }
}
@media (max-width: 600px){
  .section{ padding:60px 0; }
  .hero{ padding:64px 0 48px; }
  .hero-actions .btn{ width:100%; justify-content:center; }
  .cta-actions .btn{ width:100%; justify-content:center; }
  .cta-inner{ padding:44px 24px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}