/* So1omon — студия визуальной системы */
:root {
  --ink: #12181f;
  --ink-soft: #2a3544;
  --paper: #f3f6f8;
  --paper-deep: #e4ebf0;
  --mist: #c5d2dc;
  --accent: #0d8f7c;
  --accent-deep: #06665a;
  --accent-glow: rgba(13, 143, 124, 0.14);
  --line: rgba(18, 24, 31, 0.12);
  --muted: #5c6b7a;
  --warn: #b85a3a;
  --radius: 2px;
  --max: 1080px;
  --font-display: "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-body: "Segoe UI", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: "Cascadia Code", "Fira Mono", "Consolas", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, var(--accent-glow), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(197, 210, 220, 0.45), transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-deep) 100%);
  background-attachment: fixed;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.18s ease, opacity 0.18s ease;
}

a:hover {
  color: var(--accent);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: rgba(243, 246, 248, 0.86);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.footer-inner,
.wrap {
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.95rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.02em;
}

.brand svg {
  width: 36px;
  height: 36px;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  font-size: 0.92rem;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  position: relative;
  padding: 0.2rem 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.15rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.nav a:hover::after,
.nav a.is-active::after {
  transform: scaleX(1);
}

.nav a.is-active {
  color: var(--ink);
  font-weight: 600;
}

.hero {
  padding: 4.5rem 0 3.25rem;
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: end;
}

.hero-kicker {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.hero-lead,
.prose p,
.card p {
  color: var(--ink-soft);
}

.hero-lead {
  margin: 0 0 1rem;
  max-width: 38rem;
  font-size: 1.08rem;
}

.hero-visual {
  justify-self: end;
  width: min(100%, 360px);
  padding: 1.25rem;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px rgba(18, 24, 31, 0.07);
}

.section {
  padding: 2.75rem 0 3.5rem;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 500;
}

.section-head a {
  font-size: 0.9rem;
  white-space: nowrap;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.15rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: rgba(13, 143, 124, 0.45);
  box-shadow: 0 14px 28px rgba(18, 24, 31, 0.08);
  color: inherit;
  text-decoration: none;
}

.card-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.28rem;
  font-weight: 500;
  line-height: 1.25;
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  flex: 1;
}

.card-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--paper-deep);
  border: 1px solid var(--line);
}

.page-hero {
  padding: 3.25rem 0 1.5rem;
}

.page-hero h1 {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.85rem);
  font-weight: 500;
  letter-spacing: -0.015em;
}

.page-hero .lede {
  margin: 0;
  max-width: 40rem;
  color: var(--ink-soft);
  font-size: 1.1rem;
}

.prose {
  max-width: 42rem;
  padding-bottom: 3.5rem;
}

.prose h2 {
  margin: 2.25rem 0 0.85rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 500;
}

.prose h3 {
  margin: 1.75rem 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
}

.prose p {
  margin: 0 0 1.05rem;
}

.prose ul {
  margin: 0 0 1.25rem;
  padding-left: 1.2rem;
  color: var(--ink-soft);
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose .figure {
  margin: 1.75rem 0;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
}

.prose .figure figcaption {
  margin-top: 0.65rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  margin: 0 0 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0 3.5rem;
}

.contact-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--line);
}

.contact-card h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
}

.contact-card p {
  margin: 0 0 0.5rem;
  color: var(--ink-soft);
}

.journal-list {
  list-style: none;
  margin: 0 0 3.5rem;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.journal-list a {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1.25rem;
  padding: 1.15rem 1.25rem;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.journal-list a:hover {
  border-color: rgba(13, 143, 124, 0.5);
  transform: translateX(4px);
  color: inherit;
  text-decoration: none;
}

.journal-list time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 0.35rem;
}

.journal-list h2 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 500;
}

.journal-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
  padding: 1.75rem 0 2.25rem;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner a {
  color: var(--ink-soft);
  text-decoration: none;
}

.footer-inner a:hover {
  color: var(--accent);
}

.not-found {
  min-height: 55vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 4rem 1.25rem;
}

.not-found h1 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
}

.not-found p {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.2rem;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-size: 0.92rem;
  transition: background 0.18s ease;
}

.btn:hover {
  background: var(--accent-deep);
  color: #fff;
  text-decoration: none;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 3rem;
  }

  .hero-visual {
    justify-self: stretch;
    width: 100%;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .journal-list a {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

@media (max-width: 560px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav {
    gap: 0.5rem 1rem;
  }
}