:root {
  --bg: #0e1117;
  --text: #f4f6fb;
  --muted: #a9b0bf;
  --border: #2a3241;
  --card: #151b26;
  --surface: #101621;
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.55);
  --shadow-strong: 0 30px 70px rgba(0, 0, 0, 0.75);
  --radius: 22px;
  --radius-sm: 12px;
  --max-width: 1120px;
  --header-bg: rgba(14, 17, 23, 0.92);
  --overlay: rgba(0, 0, 0, 0.45);
  --panel-bg: linear-gradient(135deg, #1a2130, #121724);
  --excerpt: #c7ccd6;
  --quote-bg: #1a2235;
  --quote-border: #4a74ff;
  --quote-text: #dbe3ff;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body.site-body {
  margin: 0;
  font-family: "Open Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% -10%, rgba(255, 255, 255, 0.06), transparent 42%),
    radial-gradient(circle at 90% 0%, rgba(255, 255, 255, 0.04), transparent 38%),
    var(--bg);
  line-height: 1.6;
}

.app-shell {
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: #4a74ff;
}

a:hover {
  text-decoration: underline;
}

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

.wrap {
  width: min(var(--max-width), 92vw);
  margin: 0 auto;
}

.kicker {
  margin: 0 0 12px;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.title,
.article__title {
  margin: 0 0 12px;
  font-weight: 700;
  line-height: 1.15;
  font-size: clamp(2rem, 4vw, 3rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45);
}

.topbar__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
}

.topbar__brand {
  display: grid;
  gap: 6px;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
}

.tagline {
  font-size: 0.92rem;
  color: var(--muted);
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 14px;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

.menu-toggle__label {
  font-size: 0.9rem;
  font-weight: 600;
}

.menu-toggle__icon {
  display: inline-flex;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle__icon span {
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

body.menu-open .menu-toggle__icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.menu-open .menu-toggle__icon span:nth-child(2) {
  opacity: 0;
}

body.menu-open .menu-toggle__icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

body.menu-open {
  overflow: hidden;
}

.menu {
  position: fixed;
  top: 0;
  bottom: 0;
  inset-inline-end: 0;
  width: min(320px, 85vw);
  transform: translate3d(110%, 0, 0);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.3s ease, opacity 0.3s ease, visibility 0s linear 0.3s;
  z-index: 120;
  pointer-events: none;
}

body.menu-open .menu {
  transform: translate3d(0, 0, 0);
  opacity: 1;
  visibility: visible;
  transition: transform 0.3s ease, opacity 0.3s ease, visibility 0s;
  pointer-events: auto;
}

.menu__panel {
  height: 100%;
  background: var(--card);
  border-inline-start: 1px solid var(--border);
  box-shadow: var(--shadow-strong);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-height: 100vh;
  overflow-y: auto;
}

.menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.menu__title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
}

.menu__close {
  position: relative;
  border: none;
  background: var(--surface);
  width: 36px;
  height: 36px;
  border-radius: 999px;
  cursor: pointer;
}

.menu__close span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.menu__close span:first-child {
  transform: translate(-50%, -50%) rotate(45deg);
}

.menu__close span:last-child {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.menu__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 600;
  padding: 6px 0;
}

.menu__note {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.menu__backdrop {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0s linear 0.3s;
  z-index: 110;
}

body.menu-open .menu__backdrop {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.3s ease, visibility 0s;
  pointer-events: auto;
}

.page-view {
  padding: 0;
}

.intro {
  padding: clamp(36px, 6vw, 84px) 0;
}

.intro__grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.intro__side {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius);
  padding: 24px;
}

.block {
  padding: clamp(28px, 5vw, 68px) 0;
}

.block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
}

.block__title {
  margin: 0;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
}

.block__link {
  font-weight: 600;
}

.cards {
  display: grid;
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.card__media {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card__media a {
  display: block;
  height: 100%;
  width: 100%;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card__media img {
  transform: scale(1.04);
}

.card__body {
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
}

.tag {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.meta {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.card__title {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.35;
}

.card__excerpt {
  margin: 0;
  color: var(--excerpt);
}

.card__action {
  margin-top: auto;
  font-weight: 600;
}

.media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  background: var(--card);
}

.article__box {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: clamp(20px, 4vw, 36px);
}

.article__content {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text);
  max-width: 720px;
  margin: 0 auto;
}

.article__content > *:first-child {
  margin-top: 0;
}

.article__content > *:last-child {
  margin-bottom: 0;
}

.article__content h2,
.article__content h3,
.article__content h4 {
  margin: 28px 0 12px;
  line-height: 1.3;
}

.article__content p {
  margin: 0 0 16px;
}

.article__content ul,
.article__content ol {
  margin: 0 0 16px;
  padding-inline-start: 20px;
}

.article__content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  border-inline-start: 4px solid var(--quote-border);
  background: var(--quote-bg);
  border-radius: var(--radius-sm);
  color: var(--quote-text);
}

.site-foot {
  border-top: 1px solid var(--border);
  background: var(--card);
  padding: 48px 0 32px;
}

.foot__grid {
  display: grid;
  gap: 24px;
}

.foot__brand {
  display: grid;
  gap: 10px;
}

.foot__text {
  margin: 0;
  color: var(--muted);
  max-width: 420px;
}

.foot__title {
  display: block;
  font-weight: 700;
  margin-bottom: 12px;
}

.foot__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.foot__bottom {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.foot__note {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (min-width: 720px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .intro__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  }

  .menu {
    position: static;
    width: auto;
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition: none;
    justify-self: end;
  }

  .menu__panel {
    height: auto;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
    flex-direction: row;
    align-items: center;
    gap: 24px;
    max-height: none;
    overflow: visible;
  }

  .menu__head,
  .menu__foot,
  .menu__backdrop,
  .menu__close {
    display: none;
  }

  .menu__list {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    align-items: center;
    gap: 18px;
  }

  .menu-toggle {
    display: none;
  }

  .foot__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}