/*
Theme Name: Ktoznaet
Theme URI: https://ktoznaet.com/
Description: Child theme for the ktoznaet.com publication archive.
Author: ktoznaet.com
Template: online-documentation
Version: 1.0.8
Text Domain: ktoznaet
*/

:root {
  --ktz-ink: #17222d;
  --ktz-muted: #617080;
  --ktz-primary: #070395;
  --ktz-secondary: #00a9d6;
  --ktz-tertiary: #640092;
  --ktz-accent: #2924a8;
  --ktz-accent-dark: #07036f;
  --ktz-soft: #f1f2ff;
  --ktz-border: #e1e3ef;
  --ktz-surface: #ffffff;
  --ktz-shadow: 0 12px 32px rgba(26, 48, 54, 0.09);
}

html {
  scroll-behavior: smooth;
}

body {
  background: #f7f8fc;
  color: var(--ktz-ink);
}

:where(a, button, input):focus-visible {
  outline: 3px solid var(--ktz-secondary);
  outline-offset: 3px;
}

.ktz-visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.ktz-header {
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--ktz-border);
  position: relative;
  z-index: 20;
}

.ktz-header-inner {
  min-height: 78px;
  padding: 12px 24px;
}

.ktz-header .wp-block-site-title {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 750;
  letter-spacing: -0.03em;
  margin: 0;
}

.ktz-header .wp-block-site-title a,
.ktz-header .wp-block-navigation a {
  color: var(--ktz-ink);
  text-decoration: none;
}

.ktz-header .wp-block-navigation a:hover,
.ktz-header .wp-block-navigation a:focus-visible {
  color: var(--ktz-accent);
}

.ktz-hero {
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.16) 0 2px, transparent 3px) 0 0 / 34px 34px,
    linear-gradient(112deg, var(--ktz-primary) 0%, var(--ktz-tertiary) 52%, var(--ktz-secondary) 118%);
  color: #fff;
  overflow: hidden;
  padding: clamp(72px, 9vw, 118px) 24px clamp(112px, 13vw, 156px);
  position: relative;
}

.ktz-hero::after {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  content: "";
  height: 420px;
  position: absolute;
  right: -190px;
  top: -180px;
  width: 420px;
}

.ktz-hero-inner {
  max-width: 900px;
  position: relative;
  text-align: center;
  z-index: 1;
}

.ktz-kicker,
.ktz-card .taxonomy-category,
.ktz-single-meta .taxonomy-category {
  color: var(--ktz-accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ktz-hero .ktz-kicker {
  color: #c9f6ff;
  letter-spacing: 0.13em;
}

.ktz-hero h1 {
  color: #fff;
  font-size: clamp(2.35rem, 5.6vw, 4.55rem);
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin: 14px auto 20px;
  max-width: 880px;
}

.ktz-hero-copy {
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.65;
  margin-left: auto;
  margin-right: auto;
  max-width: 720px;
}

.ktz-search {
  margin: 32px auto 0;
  max-width: 720px;
}

.ktz-search .wp-block-search__inside-wrapper {
  background: var(--ktz-surface);
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: 999px;
  box-shadow: 0 18px 48px rgba(4, 2, 72, 0.28);
  padding: 6px;
}

.ktz-search .wp-block-search__input {
  border: 0;
  border-radius: 999px;
  min-height: 50px;
  padding-left: 20px;
}

.ktz-search .wp-block-search__button,
.ktz-primary-button .wp-block-button__link {
  background: linear-gradient(100deg, var(--ktz-primary), var(--ktz-tertiary));
  border-radius: 999px;
  color: #fff;
  font-weight: 700;
  padding-left: 24px;
  padding-right: 24px;
}

.ktz-search .wp-block-search__button:hover,
.ktz-primary-button .wp-block-button__link:hover {
  background: linear-gradient(100deg, var(--ktz-tertiary), var(--ktz-primary));
}

.ktz-quick-links {
  align-items: stretch;
  background: var(--ktz-surface);
  border: 1px solid rgba(7, 3, 149, 0.08);
  border-radius: 18px;
  box-shadow: 0 22px 55px rgba(28, 19, 83, 0.14);
  gap: 0;
  margin-top: -64px;
  overflow: hidden;
  position: relative;
  z-index: 5;
}

.ktz-quick-card {
  flex: 1 1 260px;
  min-height: 100%;
  padding: 27px 30px 25px 72px;
  position: relative;
}

.ktz-quick-card + .ktz-quick-card {
  border-left: 1px solid var(--ktz-border);
}

.ktz-quick-card::before {
  background: linear-gradient(145deg, rgba(7, 3, 149, 0.12), rgba(0, 169, 214, 0.18));
  border-radius: 12px;
  color: var(--ktz-primary);
  content: "";
  height: 36px;
  left: 25px;
  position: absolute;
  top: 30px;
  width: 36px;
}

.ktz-quick-card::after {
  border-right: 2px solid var(--ktz-primary);
  border-top: 2px solid var(--ktz-primary);
  content: "";
  height: 8px;
  left: 37px;
  position: absolute;
  top: 41px;
  transform: rotate(45deg);
  width: 8px;
}

.ktz-quick-label,
.ktz-section-kicker {
  color: var(--ktz-accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  margin: 0 0 5px;
  text-transform: uppercase;
}

.ktz-quick-card h3 {
  font-size: 1.08rem;
  line-height: 1.25;
  margin: 0 0 7px;
}

.ktz-quick-card h3 a {
  color: var(--ktz-ink);
  text-decoration: none;
}

.ktz-quick-card h3 a:hover,
.ktz-quick-card h3 a:focus-visible {
  color: var(--ktz-accent);
}

.ktz-quick-card > p:last-child {
  color: var(--ktz-muted);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0;
}

.ktz-section,
.ktz-archive,
.ktz-single {
  padding: clamp(48px, 7vw, 84px) 24px;
}

.ktz-home-feed {
  padding-top: clamp(64px, 8vw, 96px);
}

.ktz-section-heading {
  margin-bottom: 28px;
  text-align: center;
}

.ktz-section-heading h2,
.ktz-archive h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.035em;
  margin-bottom: 8px;
}

.ktz-section-heading p,
.ktz-archive-description,
.ktz-empty-state {
  color: var(--ktz-muted);
}

.ktz-section-heading > p:last-child {
  margin-left: auto;
  margin-right: auto;
  max-width: 720px;
}

.ktz-topic-grid {
  gap: 18px;
}

.ktz-topic {
  background: var(--ktz-surface);
  border: 1px solid var(--ktz-border);
  border-radius: 16px;
  height: 100%;
  padding: 24px;
}

.ktz-topic h3 {
  font-size: 1.2rem;
  margin: 0 0 8px;
}

.ktz-topic p {
  color: var(--ktz-muted);
  line-height: 1.55;
  margin-bottom: 0;
}

.ktz-topic a,
.ktz-card-title a {
  color: var(--ktz-ink);
  text-decoration: none;
}

.ktz-topic a:hover,
.ktz-card-title a:hover {
  color: var(--ktz-accent);
}

.ktz-post-grid {
  gap: 24px;
}

.ktz-card {
  align-self: start;
  background: var(--ktz-surface);
  border: 1px solid var(--ktz-border);
  border-radius: 16px;
  box-shadow: 0 14px 36px rgba(28, 19, 83, 0.09);
  height: auto;
  overflow: hidden;
}

.ktz-card .wp-block-post-featured-image {
  aspect-ratio: 3 / 2;
  margin: 0;
  overflow: hidden;
}

.ktz-card:not(:has(.wp-block-post-featured-image))::before {
  aspect-ratio: 3 / 2;
  background:
    radial-gradient(circle at 22% 28%, rgba(255, 255, 255, 0.26) 0 3px, transparent 4px) 0 0 / 28px 28px,
    linear-gradient(135deg, rgba(7, 3, 149, 0.92), rgba(100, 0, 146, 0.84) 56%, rgba(0, 169, 214, 0.82));
  content: "";
  display: block;
}

.ktz-card .wp-block-post-featured-image img {
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
  width: 100%;
}

.ktz-card:hover .wp-block-post-featured-image img {
  transform: scale(1.025);
}

.ktz-card-body {
  padding: 24px;
}

.ktz-card-title {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 10px 0 12px;
}

.ktz-card .wp-block-post-excerpt {
  color: var(--ktz-muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.ktz-card .wp-block-post-excerpt__more-link {
  background: transparent !important;
  color: var(--ktz-accent) !important;
  display: inline-block;
  font-weight: 700;
  padding: 5px 0;
  text-decoration: none;
}

.ktz-card .wp-block-post-excerpt__more-link:hover,
.ktz-card .wp-block-post-excerpt__more-link:focus-visible {
  background: transparent !important;
  color: var(--ktz-accent-dark) !important;
  text-decoration: underline;
}

.ktz-card .taxonomy-category a,
.ktz-single .taxonomy-category a {
  color: var(--ktz-accent);
}

.ktz-card .wp-block-post-date,
.ktz-single-date {
  color: var(--ktz-muted);
  font-size: 0.88rem;
}

.ktz-more-row {
  margin-top: 34px;
}

.ktz-pagination {
  gap: 8px;
  margin-top: 40px;
}

.ktz-pagination a,
.ktz-pagination .current {
  background: var(--ktz-surface);
  border: 1px solid var(--ktz-border);
  border-radius: 8px;
  color: var(--ktz-ink);
  padding: 8px 12px;
  text-decoration: none;
}

.ktz-pagination .current {
  background: var(--ktz-accent);
  color: #fff;
}

.ktz-single-shell {
  max-width: 820px;
}

.ktz-single-title {
  font-size: clamp(2rem, 5vw, 3.8rem);
  letter-spacing: -0.045em;
  line-height: 1.08;
  margin: 12px 0 16px;
}

.ktz-single-meta {
  gap: 16px;
  margin-bottom: 28px;
}

.ktz-single .wp-block-post-featured-image {
  border-radius: 18px;
  margin: 28px 0 36px;
  overflow: hidden;
}

.ktz-single-content {
  font-size: 1.08rem;
  line-height: 1.78;
}

.ktz-single-content > * + * {
  margin-top: 1.25em;
}

.ktz-single-content img {
  border-radius: 12px;
}

.ktz-single-content a[href*="t.me/"],
.ktz-single-content a[href*="telegram.me/"] {
  background: var(--ktz-soft);
  border: 1px solid rgba(41, 36, 168, 0.18);
  border-radius: 999px;
  color: var(--ktz-accent-dark);
  display: inline-block;
  font-weight: 700;
  padding: 8px 14px;
  text-decoration: none;
}

.ktz-single-content a[href*="t.me/"]:hover,
.ktz-single-content a[href*="telegram.me/"]:hover {
  background: #e5e7ff;
  text-decoration: underline;
}

.ktz-post-taxonomy {
  border-top: 1px solid var(--ktz-border);
  margin-top: 40px;
  padding-top: 24px;
}

.ktz-post-nav {
  border-top: 1px solid var(--ktz-border);
  gap: 24px;
  margin-top: 32px;
  padding-top: 28px;
}

.ktz-post-nav a {
  color: var(--ktz-accent-dark);
  font-weight: 650;
}

.ktz-footer {
  background: #100b3d;
  color: #f0efff;
  margin-top: 24px;
  padding: 48px 24px 28px;
}

.ktz-footer a {
  color: #fff;
}

.ktz-footer-top {
  align-items: flex-start;
}

.ktz-footer .wp-block-site-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 8px;
}

.ktz-footer-copy {
  color: #c8c5e2;
  max-width: 560px;
}

.ktz-footer-nav {
  gap: 18px;
}

.ktz-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #aaa6ce;
  font-size: 0.88rem;
  margin-top: 32px;
  padding-top: 22px;
}

@media (max-width: 781px) {
  .ktz-header-inner,
  .ktz-footer-top,
  .ktz-post-nav {
    align-items: flex-start;
  }

  .ktz-topic-grid {
    gap: 12px;
  }

  .ktz-hero,
  .ktz-section,
  .ktz-archive,
  .ktz-single {
    padding-left: 18px;
    padding-right: 18px;
  }

  .ktz-card-body {
    padding: 20px;
  }

  .ktz-hero {
    padding-bottom: 100px;
    padding-top: 62px;
  }

  .ktz-hero h1 {
    font-size: clamp(2.2rem, 12vw, 3.2rem);
  }

  .ktz-quick-links {
    margin-left: 18px !important;
    margin-right: 18px !important;
    margin-top: -48px;
  }

  .ktz-quick-card + .ktz-quick-card {
    border-left: 0;
    border-top: 1px solid var(--ktz-border);
  }

  .ktz-search .wp-block-search__button {
    padding-left: 18px;
    padding-right: 18px;
  }

  .ktz-header .wp-block-navigation__responsive-container.is-menu-open {
    padding: 24px;
  }

  .ktz-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__responsive-container-content,
  .ktz-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__container {
    align-items: flex-start;
    width: 100%;
  }

  .ktz-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation__responsive-container-content {
    margin: 0;
    padding-top: 52px;
  }

  .ktz-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item,
  .ktz-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item a {
    width: 100%;
  }

  .ktz-header .wp-block-navigation__responsive-container.is-menu-open .wp-block-navigation-item a {
    padding: 10px 0;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .ktz-card .wp-block-post-featured-image img {
    transition: none;
  }
}