:root {
  --paper: #f4f4f4;
  --soft-gray: #d6d6d6;
  --ink: #111111;
  --charcoal: #2a2a2a;
  --accent: #6f0d0d;
}

[data-theme="dark"] {
  --paper: #1a1a1a;
  --soft-gray: #2a2a2a;
  --ink: #ececec;
  --charcoal: #d0d0d0;
  --accent: #ff6b6b;
}

[data-theme="dark"] .masthead {
  background: repeating-linear-gradient(
    -45deg,
    #2d2d2d 0,
    #2d2d2d 12px,
    #333333 12px,
    #333333 24px
  );
}

[data-theme="dark"] .brand {
  background: #0a0a0a;
  color: #ececec;
}

[data-theme="dark"] .brand:hover,
[data-theme="dark"] .brand:focus-visible {
  background: #ececec;
  color: #0a0a0a;
}


* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Space Grotesk", "Helvetica Neue", sans-serif;
  line-height: 1.55;
}

a {
  color: var(--ink);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.15em;
}

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

.site-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1rem;
}

@media (max-width: 640px) {
  .site-wrap {
    padding: 0.75rem;
  }
}

.masthead {
  border: 5px solid var(--ink);
  background: repeating-linear-gradient(
    -45deg,
    #ececec 0,
    #ececec 12px,
    #d9d9d9 12px,
    #d9d9d9 24px
  );
  padding: 1rem;
  margin-bottom: 1rem;
}

.brand {
  display: inline-block;
  font-family: "Archivo Black", Impact, sans-serif;
  font-size: clamp(1.5rem, 5vw, 4rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border: 4px solid var(--ink);
  background: #ffffff;
  padding: 0.2rem 0.8rem;
}

.brand:hover,
.brand:focus-visible {
  background: var(--ink);
  color: #ffffff;
}

@media (max-width: 640px) {
  .brand {
    border-width: 3px;
    padding: 0.15rem 0.6rem;
  }
}

.tagline {
  margin-top: 0.65rem;
  display: inline-block;
  padding: 0.35rem 0.6rem;
  background: var(--accent);
  color: #ffffff;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.main-nav {
  margin-top: 0.95rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.main-nav a {
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  border: 3px solid var(--ink);
  background: var(--paper);
  padding: 0.35rem 0.7rem;
}

.main-nav .nav-disabled {
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  border: 3px solid #7d7d7d;
  background: #d0d0d0;
  color: #6a6a6a;
  padding: 0.35rem 0.7rem;
  cursor: not-allowed;
}

.main-nav a[aria-current="page"] {
  background: var(--ink);
  color: #fff;
}

.grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}

.block {
  border: 4px solid var(--ink);
  background: var(--paper);
  padding: 1rem;
  box-shadow: 8px 8px 0 var(--charcoal);
  transition: box-shadow 0.2s ease;
}

.block:hover {
  box-shadow: 12px 12px 0 var(--charcoal);
}

.block h2,
.block h3 {
  margin-top: 0;
  font-family: "Archivo Black", Impact, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.chip {
  display: inline-block;
  border: 2px solid var(--ink);
  padding: 0.12rem 0.5rem;
  margin-right: 0.4rem;
  margin-top: 0.4rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  font-weight: 700;
}

.chip[role="tag"] {
  /* Semantic role for accessibility */
}

.chip.tag-filter {
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip.tag-filter:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.chip.tag-filter.tag-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.tag-section {
  margin-bottom: 1.5rem;
}

.tag-toggle-btn {
  margin-bottom: 0.5rem;
}

.tag-cloud-collapsed {
  display: none;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.tag-cloud-expanded {
  display: block;
  max-height: 500px;
  overflow-y: auto;
  padding: 0.5rem 0;
  transition: max-height 0.3s ease;
}

.post-list article + article {
  margin-top: 1rem;
}

.post-card {
  border: 3px solid var(--ink);
  background: var(--paper);
  padding: 0.9rem;
  transition: border-color 0.2s ease;
}

.post-card:hover {
  border-color: var(--accent);
}

.meta {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--charcoal);
}

.btn {
  display: inline-block;
  text-decoration: none;
  border: 3px solid var(--ink);
  background: var(--accent);
  color: #fff;
  padding: 0.45rem 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.btn:hover,
.btn:focus-visible {
  background: #4f0808;
  color: #fff;
}

.btn-disabled,
.btn-disabled:hover,
.btn-disabled:focus-visible {
  background: #b5b5b5;
  border-color: #757575;
  color: #4f4f4f;
  cursor: not-allowed;
  pointer-events: none;
}

.footer {
  margin-top: 1rem;
  border: 4px solid var(--ink);
  background: var(--soft-gray);
  padding: 0.85rem 1rem;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.9rem;
}

.theme-toggle {
  border: 3px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  padding: 0.35rem 0.7rem;
  font-size: 1.2rem;
  cursor: pointer;
  font-weight: 700;
  text-transform: uppercase;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: var(--ink);
  color: #fff;
}


.stack > * + * {
  margin-top: 0.8rem;
}

/* Blog-specific styles */
.search-box {
  margin: 1rem 0;
}

.search-input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 3px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1rem;
  font-weight: 600;
}

.search-input:focus {
  outline: none;
  border-color: var(--accent);
}

.tag-section {
  margin: 1rem 0;
}

.tag-section h3 {
  margin-bottom: 0.5rem;
  font-family: "Archivo Black", Impact, sans-serif;
  text-transform: uppercase;
  font-size: 1rem;
}

#tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.active-filter-bar {
  padding: 0.6rem 0.8rem;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 1rem 0;
}

.btn-small {
  padding: 0.25rem 0.5rem;
  font-size: 0.85rem;
}

.pagination-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 3px solid var(--ink);
}

.pagination-info {
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.pagination-btn {
  min-width: 120px;
}

#post-list-container > article + article {
  margin-top: 1rem;
}

.post-navigation {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 3px solid var(--ink);
}

.post-nav-link {
  flex: 1;
  text-align: center;
}

.post-nav-link.prev {
  text-align: left;
}

.post-nav-link.next {
  text-align: right;
}

@media (max-width: 860px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .masthead {
    border-width: 3px;
    padding: 0.75rem;
  }

  .main-nav {
    flex-direction: column;
    gap: 0.5rem;
  }

  .main-nav a,
  .main-nav .nav-disabled {
    display: block;
    text-align: center;
  }

  .block {
    border-width: 3px;
    box-shadow: 6px 6px 0 var(--charcoal);
  }

  .tagline {
    font-size: 0.9rem;
  }
}