:root {
  --site-bg: #f6f8fc;
  --site-surface: #ffffff;
  --site-surface-muted: #f1f5f9;
  --site-border: #e2e8f0;
  --site-text: #1f2a44;
  --site-text-muted: #64748b;
  --site-primary: #2864f0;
  --site-primary-contrast: #ffffff;
  --site-shadow: 0 20px 45px rgba(15, 23, 42, .1);
  --site-footer-bg: #111b33;
  --site-footer-text: #cbd5e1;
  --site-footer-text-muted: #8896ad;
  --site-footer-border: rgba(255,255,255,.1);
  --site-max-width: 1120px;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --site-bg: #0f1420;
  --site-surface: #171e2e;
  --site-surface-muted: #1e2740;
  --site-border: #2b3654;
  --site-text: #e7ecff;
  --site-text-muted: #98a2c0;
  --site-primary: #6f9bff;
  --site-primary-contrast: #0f1420;
  --site-shadow: 0 20px 45px rgba(0, 0, 0, .35);
  --site-footer-bg: #0a0e1a;
  --site-footer-text: #b7c0dc;
  --site-footer-text-muted: #6b769a;
  --site-footer-border: rgba(255,255,255,.08);
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --site-bg: #0f1420;
    --site-surface: #171e2e;
    --site-surface-muted: #1e2740;
    --site-border: #2b3654;
    --site-text: #e7ecff;
    --site-text-muted: #98a2c0;
    --site-primary: #6f9bff;
    --site-primary-contrast: #0f1420;
    --site-shadow: 0 20px 45px rgba(0, 0, 0, .35);
    --site-footer-bg: #0a0e1a;
    --site-footer-text: #b7c0dc;
    --site-footer-text-muted: #6b769a;
    --site-footer-border: rgba(255,255,255,.08);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

body.site {
  margin: 0;
  background: var(--site-bg);
  color: var(--site-text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Arial, sans-serif;
  line-height: 1.6;
  transition: background-color .15s ease, color .15s ease;
}

.site-wrap { min-height: 100vh; display: flex; flex-direction: column; }
.site-container { width: 100%; max-width: var(--site-max-width); margin: 0 auto; padding: 0 20px; }

a { color: var(--site-primary); }

/* Header */
.site-header {
  background: var(--site-surface);
  border-bottom: 1px solid var(--site-border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 14px 0;
}
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--site-text);
  text-decoration: none;
  white-space: nowrap;
}
.site-logo__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--site-primary);
  color: var(--site-primary-contrast);
  font-size: .85rem;
  font-weight: 800;
}
.site-header__right { display: flex; align-items: center; gap: 1.1rem; margin-left: auto; }
.site-nav { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.site-nav a {
  color: var(--site-text);
  text-decoration: none;
  font-size: .95rem;
  font-weight: 500;
  padding: .3rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a.is-active { color: var(--site-primary); border-color: var(--site-primary); }

.site-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--site-border);
  border-radius: 8px;
  padding: .4rem .6rem;
  cursor: pointer;
  color: var(--site-text);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  border: 1px solid var(--site-border);
  background: var(--site-surface-muted);
  color: var(--site-text);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--site-primary); color: var(--site-primary); }
.theme-toggle .icon-dark { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-light { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-dark { display: inline; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-light { display: none; }
  :root:not([data-theme="light"]) .theme-toggle .icon-dark { display: inline; }
}

/* Hero */
.hero {
  padding: 64px 0;
  text-align: center;
}
.hero__eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--site-primary);
  margin-bottom: .75rem;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  margin: 0 0 1rem;
  color: var(--site-text);
}
.hero p {
  font-size: 1.1rem;
  color: var(--site-text-muted);
  max-width: 640px;
  margin: 0 auto 1.75rem;
}
.hero__actions { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }
.hero__image {
  margin-top: 2.5rem;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--site-shadow);
}
.hero__image img { display: block; width: 100%; max-height: 380px; object-fit: cover; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .7rem 1.3rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--site-primary); color: var(--site-primary-contrast); }
.btn-secondary { background: var(--site-surface); color: var(--site-text); border-color: var(--site-border); }
.btn-on-dark { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.3); }

/* Sections & cards */
.section { padding: 40px 0; }
.section-title {
  font-size: 1.6rem;
  margin: 0 0 .5rem;
  color: var(--site-text);
  text-align: center;
}
.section-subtitle {
  text-align: center;
  color: var(--site-text-muted);
  max-width: 620px;
  margin: 0 auto 2rem;
}
.card {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 14px;
  padding: 28px;
}

/* Feature grid (demo blocks) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.feature-card {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 14px;
  padding: 1.75rem 1.5rem;
  text-align: center;
}
.feature-card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  border-radius: 12px;
  background: var(--site-surface-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.feature-card h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.feature-card p { margin: 0; color: var(--site-text-muted); font-size: .92rem; }

/* Stats row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  text-align: center;
}
.stats-row .stat strong { display: block; font-size: 2rem; color: var(--site-primary); }
.stats-row .stat span { color: var(--site-text-muted); font-size: .88rem; }

/* CTA banner */
.cta-banner {
  background: linear-gradient(135deg, var(--site-primary), #1c3fbf);
  color: #fff;
  border-radius: 18px;
  padding: 2.5rem;
  text-align: center;
}
:root[data-theme="dark"] .cta-banner { background: linear-gradient(135deg, #2a3f8f, #16234f); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .cta-banner { background: linear-gradient(135deg, #2a3f8f, #16234f); }
}
.cta-banner h2 { margin: 0 0 .5rem; font-size: 1.5rem; }
.cta-banner p { margin: 0 0 1.5rem; opacity: .9; }

/* Blog grid */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}
.post-card {
  background: var(--site-surface);
  border: 1px solid var(--site-border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.post-card__image { aspect-ratio: 16/9; overflow: hidden; background: var(--site-surface-muted); }
.post-card__image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.post-card__body { padding: 1.25rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.post-card__date { font-size: .8rem; color: var(--site-text-muted); }
.post-card__title { font-size: 1.1rem; margin: 0; }
.post-card__title a { color: var(--site-text); text-decoration: none; }
.post-card__title a:hover { color: var(--site-primary); }
.post-card__excerpt { color: var(--site-text-muted); font-size: .92rem; flex: 1; }
.post-card__more { font-size: .88rem; font-weight: 600; text-decoration: none; }

/* Pagination */
.pagination { display: flex; gap: .4rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 2.2rem;
  height: 2.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--site-border);
  text-decoration: none;
  color: var(--site-text);
  font-size: .88rem;
}
.pagination a:hover { border-color: var(--site-primary); color: var(--site-primary); }
.pagination .is-active { background: var(--site-primary); border-color: var(--site-primary); color: #fff; }

/* Single post / page */
.post-header { margin-bottom: 1.5rem; }
.post-header__date { font-size: .85rem; color: var(--site-text-muted); }
.post-header h1, .page-content h1 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); margin: .4rem 0 1rem; }
.post-cover { border-radius: 14px; overflow: hidden; margin-bottom: 1.75rem; }
.post-cover img { width: 100%; max-height: 420px; object-fit: cover; display: block; }
.post-body, .page-content { font-size: 1.05rem; color: var(--site-text); }
.post-body img, .page-content img { max-width: 100%; border-radius: 10px; }
.back-link { display: inline-block; margin-bottom: 1.25rem; font-size: .92rem; text-decoration: none; color: var(--site-text-muted); }

/* Contacts */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2rem;
  align-items: start;
}
.contact-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .9rem; }
.contact-list li { display: flex; gap: .6rem; font-size: .98rem; }
.contact-list .label { color: var(--site-text-muted); min-width: 90px; }
.contact-map iframe { width: 100%; min-height: 320px; border: 0; border-radius: 14px; }

/* Empty state */
.empty-state { text-align: center; padding: 3rem 1rem; color: var(--site-text-muted); }

/* Footer */
.site-footer {
  margin-top: auto;
  background: var(--site-footer-bg);
  color: var(--site-footer-text);
  padding: 40px 0 24px;
}
.site-footer__top {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--site-footer-border);
  margin-bottom: 18px;
}
.site-footer__brand { font-weight: 800; color: #fff; font-size: 1.1rem; }
.site-footer nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.site-footer nav a { color: var(--site-footer-text); text-decoration: none; font-size: .92rem; }
.site-footer nav a:hover { color: #fff; }
.site-footer__contacts { display: flex; gap: 1.4rem; flex-wrap: wrap; font-size: .9rem; }
.site-footer__contacts a { color: var(--site-footer-text); text-decoration: none; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: .82rem; color: var(--site-footer-text-muted); }

@media (max-width: 760px) {
  .site-nav { display: none; flex-direction: column; width: 100%; padding: 1rem 0; }
  .site-nav.is-open { display: flex; }
  .site-nav-toggle { display: inline-flex; }
  .contact-grid { grid-template-columns: 1fr; }
  .site-header__right { margin-left: 0; }
}