/* ============================================
   KOROBOV DEVOPS — COVER VARIANT
   60% base: warm cream / light gray paper
   30% primary: dark navy + charcoal ink (headings, blocks, text)
   10% accent: gold (CTAs, small marks, highlights)
   Type: Fraunces (display serif, two-tone headline) / Inter / JetBrains Mono
   ============================================ */

:root{
  --bg:            #F1ECE1;   /* 60% — warm cream paper */
  --bg-alt:        #E7E0D2;   /* 60% — deeper cream for section rhythm */
  --bg-raised:     #F6F2E9;

  --navy:          #2B3A56;   /* 30% — primary dark navy */
  --navy-deep:     #1B2436;   /* 30% — near-black navy, blocks & headline weight */
  --ink:           #201E1B;   /* 30% — charcoal/black body text */
  --ink-dim:       #4E4A44;

  --gold:          #B8862B;   /* 10% — accent: CTAs, marks, highlights */
  --gold-bright:   #D3A03E;
  --gold-deep:     #8F6A1F;

  --gray:          #8B867B;   /* muted labels, sits within the 60/30 neutrals */
  --line:          rgba(32,30,27,0.14);
  --line-strong:   rgba(32,30,27,0.24);

  /* aliases so the shared HTML/class structure resolves correctly */
  --muted:         var(--gray);
  --cream:         var(--ink);
  --cream-dim:     var(--ink-dim);
  --brass:         var(--gold);
  --brass-bright:  var(--gold-bright);
  --olive-bright:  var(--navy);
  --wine:          var(--gold-deep);

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono:  "JetBrains Mono", "SF Mono", Consolas, monospace;

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

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* paper grain texture — subtle fibrous noise, like the book-cover stock */
.grain{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='0 0 0 0 0.16 0 0 0 0 0.14 0 0 0 0 0.12 0 0 0 0.05 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 40px;
}

a{ color: inherit; text-decoration: none; }

h1, h2, h3{
  font-family: var(--serif);
  font-weight: 500;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.01em;
}

p{ margin: 0; color: var(--ink-dim); }

blockquote{
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--navy);
  border-left: 2px solid var(--gold);
  padding-left: 20px;
  margin: 28px 0 0;
}

.eyebrow{
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--navy);
  margin: 0 0 14px;
}

.section-title{
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.2;
}

.section-head{ margin-bottom: 52px; }

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-solid{
  background: var(--gold);
  color: #fff;
}
.btn-solid:hover{ background: var(--gold-deep); }

.btn-ghost{
  border-color: var(--line-strong);
  color: var(--ink);
  padding: 10px 20px;
  font-size: 0.85rem;
}
.btn-ghost:hover{ border-color: var(--gold); color: var(--gold-deep); }

.btn-text{
  color: var(--ink-dim);
  padding: 13px 4px;
  border-bottom: 1px solid transparent;
  font-weight: 500;
}
.btn-text:hover{ color: var(--navy); border-color: var(--navy); }

.btn-full{ width: 100%; justify-content: center; }
.btn-small{ }

/* ---------- header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(241, 236, 225, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display: flex;
  align-items: center;
  gap: 40px;
  padding-top: 20px;
  padding-bottom: 20px;
}
.wordmark{ display: flex; flex-direction: column; line-height: 1; margin-right: auto; }
.wordmark-main{ font-family: var(--serif); font-size: 1.25rem; letter-spacing: 0.01em; color: var(--ink); }
.wordmark-sub{ font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--navy); margin-top: 3px; }

.main-nav{ display: flex; gap: 32px; }
.main-nav a{
  font-size: 0.9rem;
  color: var(--ink-dim);
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color .2s ease, border-color .2s ease;
}
.main-nav a:hover{ color: var(--navy); border-color: var(--gold); }

.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span{ width: 22px; height: 1px; background: var(--ink); }

.mobile-nav{
  display: none;
  flex-direction: column;
  border-top: 1px solid var(--line);
  padding: 8px 40px 20px;
}
.mobile-nav a{ padding: 12px 0; font-size: 0.95rem; color: var(--ink-dim); border-bottom: 1px solid var(--line); }
.site-header.open .mobile-nav{ display: flex; }

/* ---------- hero ---------- */
.hero{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
  padding-top: 100px;
  padding-bottom: 110px;
  position: relative;
  z-index: 2;
}
.hero-title{
  font-size: clamp(2.2rem, 4.6vw, 3.4rem);
  line-height: 1.16;
}
.hero-title em{ color: var(--navy); font-style: normal; font-weight: 600; }
.hero-lede{
  max-width: 480px;
  margin-top: 26px;
  font-size: 1.03rem;
}
.hero-actions{ display: flex; align-items: center; gap: 28px; margin-top: 38px; flex-wrap: wrap; }

/* ---------- signature element: book-cover-style geometric poster ---------- */
.poster-frame{
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg-raised);
  border: 1px solid var(--line-strong);
  box-shadow: 0 30px 60px -38px rgba(27,36,54,0.35);
}
.poster-art{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.poster-status{
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  background: var(--navy-deep);
  padding: 18px 20px 16px;
}
.plaque-label{
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(241,236,225,0.55);
  margin-bottom: 12px;
}
.plaque-terminal{
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.85;
  color: rgba(241,236,225,0.88);
  margin: 0;
  white-space: pre-wrap;
}
.plaque-terminal .ok{ color: var(--gold-bright); font-weight: 600; }
.plaque-footer{
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(241,236,225,0.16);
  font-family: var(--mono);
  font-size: 0.64rem;
  color: rgba(241,236,225,0.45);
  letter-spacing: 0.04em;
}

/* ---------- expertise ---------- */
.expertise{ padding: 90px 0; border-top: 1px solid var(--line); background: var(--bg-alt); }
.expertise-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.expertise-card{
  background: var(--bg);
  padding: 38px 34px;
  transition: background .2s ease;
}
.expertise-card:hover{ background: var(--bg-raised); }
.card-mark{
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--navy);
  border: 1px solid var(--navy);
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  margin-bottom: 20px;
  transition: all .2s ease;
}
.expertise-card:hover .card-mark{ background: var(--gold); border-color: var(--gold); color: #fff; }
.expertise-card h3{ font-size: 1.15rem; margin-bottom: 12px; }
.expertise-card p{ font-size: 0.92rem; }

/* ---------- about ---------- */
.about{
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  padding: 100px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}
.portrait-frame{
  border: 1px solid var(--line-strong);
  padding: 10px;
  position: relative;
}
.portrait-frame::before{
  content: "";
  position: absolute;
  top: -1px; left: -1px;
  width: 16px; height: 16px;
  border-top: 2px solid var(--gold);
  border-left: 2px solid var(--gold);
}
.portrait-frame::after{
  content: "";
  position: absolute;
  bottom: -1px; right: -1px;
  width: 16px; height: 16px;
  border-bottom: 2px solid var(--gold);
  border-right: 2px solid var(--gold);
}
.portrait-plate{
  aspect-ratio: 4/5;
  position: relative;
  overflow: hidden;
  background: var(--bg-alt);
}
.portrait-img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
  display: block;
  filter: saturate(94%) contrast(1.02);
}
.portrait-overlay{ display: none; }
.stat-plaque{
  margin-top: 22px;
  border: 1px solid var(--line);
  background: var(--navy-deep);
  display: flex;
  align-items: center;
  padding: 22px 8px;
}
.stat{ flex: 1; text-align: center; }
.stat-num{ display: block; font-family: var(--serif); font-size: 1.5rem; color: var(--gold-bright); }
.stat-label{ display: block; font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(241,236,225,0.55); margin-top: 6px; }
.stat-divider{ width: 1px; align-self: stretch; background: rgba(241,236,225,0.16); }

.about-text p{ margin-top: 20px; font-size: 1rem; max-width: 560px; }
.about-text .section-title{ margin-top: 10px; margin-bottom: 4px; }

/* ---------- blog ---------- */
.blog{ padding: 100px 0; border-top: 1px solid var(--line); }
.blog-list{ border-top: 1px solid var(--line); }
.blog-item{
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 28px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.blog-date{ font-family: var(--mono); font-size: 0.78rem; color: var(--navy); padding-top: 6px; }
.blog-item h3{ font-size: 1.15rem; margin-bottom: 8px; }
.blog-item p{ font-size: 0.92rem; max-width: 520px; }
.blog-link{
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--gold-deep);
  align-self: center;
  white-space: nowrap;
  border-bottom: 1px solid transparent;
}
.blog-link:hover{ border-color: var(--gold); color: var(--gold); }

/* ---------- contact ---------- */
.contact-solo{
  padding: 100px 0 120px;
  border-top: 1px solid var(--line);
}
.contact-solo .contact-info{ max-width: 620px; }
.contact-lede{ margin-top: 18px; max-width: 480px; }
.contact-actions{
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 36px;
}
.contact-list{ list-style: none; margin: 48px 0 0; padding: 0; }
.contact-list li{
  display: flex;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
}
.contact-list li span{ font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray); }
.contact-list li a:hover{ color: var(--navy); }

/* ---------- footer ---------- */
.site-footer{ border-top: 1px solid var(--line); padding: 46px 0; }
.footer-inner{ display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-nav{ display: flex; gap: 26px; }
.footer-nav a{ font-size: 0.85rem; color: var(--ink-dim); }
.footer-nav a:hover{ color: var(--navy); }
.footer-copy{ font-family: var(--mono); font-size: 0.75rem; color: var(--gray); }

/* ---------- reveal (pure CSS, no JS dependency) ---------- */
@keyframes fadeInUp{
  from{ opacity: 0; transform: translateY(14px); }
  to{ opacity: 1; transform: translateY(0); }
}
.reveal{ animation: fadeInUp 0.7s ease both; }
.reveal:nth-of-type(2){ animation-delay: .05s; }
.reveal:nth-of-type(3){ animation-delay: .1s; }

@media (prefers-reduced-motion: reduce){
  .reveal{ animation: none; opacity: 1; transform: none; }
}

/* ---------- article page (blog posts) ---------- */
.article-page{ padding: 70px 0 100px; }
.back-link{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--navy);
  margin-bottom: 44px;
}
.back-link:hover{ color: var(--gold-deep); }

.article{ max-width: 720px; margin: 0 auto; }
.article-meta{
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 22px;
}
.article-title{
  font-size: clamp(1.9rem, 4.2vw, 2.6rem);
  line-height: 1.22;
  margin-bottom: 44px;
}
.article-body p{
  font-size: 1.06rem;
  line-height: 1.85;
  color: var(--ink-dim);
  margin: 0 0 26px;
}
.article-body h2{
  font-size: 1.4rem;
  margin: 48px 0 20px;
}
.article-footer-nav{
  margin-top: 70px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.article-footer-nav a{
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
}
.article-footer-nav a:hover{ color: var(--navy); }

/* ---------- keyboard focus & scroll offset ---------- */
#about, #expertise, #blog, #contact, .page{
  scroll-margin-top: 90px;
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .hero{ grid-template-columns: 1fr; padding-top: 60px; }
  .about{ grid-template-columns: 1fr; }
  .expertise-grid{ grid-template-columns: repeat(2, 1fr); }
  .contact-solo .contact-info{ max-width: 100%; }
  .blog-item{ grid-template-columns: 100px 1fr; }
  .blog-link{ grid-column: 2; }
}

@media (max-width: 680px){
  .wrap{ padding: 0 22px; }
  .main-nav{ display: none; }
  .header-inner .btn-ghost{ display: none; }
  .nav-toggle{ display: flex; }
  .expertise-grid{ grid-template-columns: 1fr; }
  .hero{ padding-bottom: 70px; }
  .stat-plaque{ flex-wrap: wrap; }
  .article-page{ padding: 50px 0 70px; }
}