:root {
  /* Palette from itscience.pro (theme voronin / Aegea) */
  --bg: #ffffff;
  --bg-soft: #f0f0f0;
  --surface: #ffffff;
  --text: #324047;
  --text-muted: #556677;
  --border: #e5e5e5;
  --accent: #0060a0;
  --accent-soft: rgba(0, 96, 160, 0.1);
  --accent-hover: #b03000;
  --danger: #b03000;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(50, 64, 71, 0.06);
  --font-sans: "Play", "Open Sans", Helvetica, Arial, sans-serif;
  --font-serif: "Play", "Open Sans", Helvetica, Arial, sans-serif;
  --font-mono: "Consolas", "Courier New", monospace;
  --max: 1100px;
  --pad: clamp(1rem, 3.5vw, 2rem);
  --header-h: 4rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.15s ease;
}

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

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

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

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem var(--pad);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.site-brand__logo {
  display: block;
  width: 36px;
  height: 36px;
  object-fit: contain;
  flex-shrink: 0;
}

.site-brand__name {
  line-height: 1.2;
}

.site-brand:hover {
  color: var(--accent);
}

.site-brand:hover .site-brand__logo {
  opacity: 0.92;
}

.site-nav {
  display: flex;
  gap: 1rem;
  margin-right: auto;
}

.site-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--text);
}

.site-search {
  display: flex;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.site-search input {
  border: 0;
  background: transparent;
  padding: 0.45rem 0.9rem;
  width: 10rem;
  font: inherit;
  font-size: 0.92rem;
  outline: none;
  color: var(--text);
}

.site-search button {
  border: 0;
  background: transparent;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
}

.site-main {
  flex: 1;
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.75rem) var(--pad) clamp(2.5rem, 6vw, 4rem);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-soft) 70%, transparent);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem var(--pad);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.flashes {
  max-width: var(--max);
  margin: 1rem auto 0;
  padding: 0 var(--pad);
}

.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.flash--success {
  background: var(--accent-soft);
  color: var(--accent);
}

.flash--error {
  background: #f8e8e5;
  color: var(--danger);
}

.page-intro {
  margin-bottom: 2rem;
}

.page-intro h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.4rem;
  line-height: 1.25;
}

.page-intro p {
  margin: 0;
  color: var(--text-muted);
}

.feed {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

/* Tall images on homepage feed (Pikabu-style clip) */
.feed--clip-tall-images .img-clip {
  margin: 1.25rem 0;
}

.feed--clip-tall-images .img-clip .js-lightbox {
  margin: 0;
}

.feed--clip-tall-images .img-clip__viewport {
  position: relative;
}

.feed--clip-tall-images .img-clip.is-clipped .img-clip__viewport {
  max-height: 650px;
  overflow: hidden;
}

.feed--clip-tall-images .img-clip.is-clipped .img-clip__viewport::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 5rem;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), var(--bg));
  pointer-events: none;
}

.feed--clip-tall-images .img-clip__toggle {
  display: inline-block;
  margin: 0.35rem 0 0;
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  cursor: pointer;
  text-align: left;
  transition: color 0.15s ease;
}

.feed--clip-tall-images .img-clip__toggle:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.post-card {
  animation: rise 0.45s ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.post-card__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}

.post-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.post-card__meta-end {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: auto;
  flex-shrink: 0;
}

.post-card__date {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.post-views {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1;
}

.post-views__icon {
  width: 1em;
  height: 1em;
  flex-shrink: 0;
}

.post-views__count {
  font-variant-numeric: tabular-nums;
}

.post-card__title a {
  color: var(--text);
  text-decoration: none;
}

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

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0;
  margin: 0 0 1rem;
}

.tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
}

.tag:hover {
  background: color-mix(in srgb, var(--accent-soft) 80%, var(--accent));
  color: var(--accent-hover);
}

.post-card__body {
  margin-top: 0.25rem;
}

.post-card__footer {
  margin-top: 1rem;
}

.post-rating-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1;
}

.post-rating-badge__star {
  color: #d4a017;
}

.post-rating-badge__count {
  opacity: 0.85;
}

.post-rating {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.75rem;
  padding-top: 0.25rem;
}

.post-rating__label {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.post-rating__stars {
  display: inline-flex;
  gap: 0.12rem;
}

.post-rating__star {
  border: 0;
  background: none;
  padding: 0;
  font-size: 1.35rem;
  line-height: 1;
  color: #c8d0d8;
  cursor: default;
}

.post-rating--interactive .post-rating__star {
  cursor: pointer;
  transition: color 0.15s ease, transform 0.15s ease;
}

.post-rating--interactive .post-rating__star:hover,
.post-rating--interactive .post-rating__star:focus-visible {
  color: #d4a017;
  transform: scale(1.08);
}

.post-rating__star.is-filled {
  color: #d4a017;
}

.post-rating__summary {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.post-rating__average {
  color: var(--text);
  font-weight: 600;
}

.post-rating__thanks,
.post-rating__message {
  font-size: 0.88rem;
  color: var(--accent);
}

.post-rating__message--error {
  color: var(--danger);
}

.post-card__footer--rating {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.read-more {
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.read-more:hover {
  gap: 0.45rem;
}

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

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

.content p,
.content ul,
.content ol,
.content blockquote,
.content pre,
.content .table-wrap {
  margin: 0 0 1.1rem;
}

.content h2,
.content h3,
.content h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 1.75rem 0 0.75rem;
}

.content ul,
.content ol {
  padding-left: 1.25rem;
}

.content .table-wrap {
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface, #fff);
}

.content table {
  display: table;
  width: 100%;
  min-width: 280px;
  border-collapse: collapse;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.45;
}

.content thead {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.content th,
.content td {
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.content th {
  font-family: var(--font-sans, system-ui, sans-serif);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.content tbody tr:last-child th,
.content tbody tr:last-child td {
  border-bottom: 0;
}

.content tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--text) 3%, transparent);
}

.content td {
  color: var(--text);
}

.content blockquote {
  margin-left: 0;
  padding: 0.25rem 0 0.25rem 1rem;
  border-left: 3px solid var(--accent);
  color: var(--text-muted);
  font-family: var(--font-serif);
}

.content pre {
  background: #1e2422;
  color: #e8ebe9;
  padding: 1rem 1.1rem;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.55;
}

.content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.content :not(pre) > code {
  background: var(--bg-soft);
  padding: 0.12em 0.35em;
  border-radius: 4px;
}

.content img {
  border-radius: 8px;
  display: block;
  margin: 1.25rem 0;
  box-shadow: var(--shadow);
}

.content a.js-lightbox {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin: 1.25rem 0;
  padding: 1rem;
  text-decoration: none;
  cursor: zoom-in;
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-soft) 70%, var(--surface));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: opacity 0.2s ease, box-shadow 0.2s ease;
}

.content a.js-lightbox:hover {
  opacity: 1;
  box-shadow: 0 2px 8px rgba(50, 64, 71, 0.1);
}

.content a.js-lightbox img,
.content img.content-thumb {
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: none;
  object-fit: contain;
  object-position: center;
  margin: 0;
  border-radius: 6px;
  box-shadow: none;
  display: block;
  aspect-ratio: auto;
}

.content a {
  word-break: break-word;
}

mark.search-hit {
  color: inherit;
  background-color: #ccff00;
  padding: 0.02em 0.08em;
  border-radius: 0;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

/* Lightbox */
body.lightbox-open {
  overflow: hidden;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background: rgba(18, 22, 20, 0);
  backdrop-filter: blur(0);
  transition: background 0.35s ease, backdrop-filter 0.35s ease;
}

.lightbox[hidden] {
  display: none;
}

.lightbox.is-open {
  background: rgba(18, 22, 20, 0.78);
  backdrop-filter: blur(10px);
}

.lightbox__stage {
  margin: 0;
  max-width: min(96vw, 1400px);
  max-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__img {
  max-width: 96vw;
  max-height: 92vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.35s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.lightbox.is-open .lightbox__img {
  opacity: 1;
  transform: scale(1);
}

.lightbox__close {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 1001;
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease, transform 0.2s ease;
}

.lightbox__close:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: scale(1.05);
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  height: 2.4rem;
  padding: 0 0.65rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.92rem;
}

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

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

.load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn:disabled {
  opacity: 0.55;
  cursor: default;
}

.btn--ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--surface);
}

.btn--danger {
  background: var(--danger);
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.search-form-large {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.search-form-large input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font: inherit;
  background: var(--surface);
  box-shadow: var(--shadow);
  outline: none;
}

.search-form-large input:focus {
  border-color: var(--accent);
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag--lg {
  font-size: 0.95rem;
  padding: 0.4rem 0.9rem;
}

.tag-count {
  opacity: 0.65;
  margin-left: 0.25rem;
  font-size: 0.85em;
}

.post-single .post-card__title {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
}

.back-link {
  display: inline-block;
  margin-bottom: 1.5rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.back-link:hover {
  color: var(--accent);
}

.preview-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-bottom: 1.5rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: #e8eef6;
  color: #3a5270;
  font-size: 0.92rem;
  border: 1px solid color-mix(in srgb, #3a5270 18%, transparent);
  animation: rise 0.35s ease both;
}

.preview-banner strong {
  font-weight: 600;
}

.preview-banner a {
  margin-left: auto;
  font-weight: 500;
  text-decoration: none;
}

.post-single--preview {
  outline: 1px dashed color-mix(in srgb, #3a5270 28%, transparent);
  outline-offset: 12px;
  border-radius: 4px;
}

@media (max-width: 768px) {
  .site-header__inner {
    gap: 0.75rem;
  }

  .site-nav {
    order: 3;
    width: 100%;
    margin-right: 0;
    gap: 0.85rem;
  }

  .site-search {
    margin-left: auto;
  }

  .site-search input {
    width: clamp(6.5rem, 28vw, 10rem);
  }

  .feed {
    gap: 2rem;
  }

  .preview-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .preview-banner a {
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .site-brand {
    font-size: 1.2rem;
    gap: 0.5rem;
  }

  .site-brand__logo {
    width: 32px;
    height: 32px;
  }

  .site-search button {
    padding-inline: 0.65rem;
  }

  .search-form-large {
    flex-direction: column;
  }

  .search-form-large .btn {
    width: 100%;
  }
}