@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&display=swap');

:root {
  --bg:          #f0f4f0;
  --bg2:         #e2ede2;
  --panel:       #ffffff;
  --panel2:      #f7fff7;
  --border:      #2d6a2d;
  --border-lite: #a3c9a3;
  --border-dark: #1a3d1a;
  --text:        #0d1f0d;
  --text2:       #2a4a2a;
  --muted:       #5a7a5a;
  --green:       #22c55e;
  --green-dark:  #15803d;
  --green-glow:  #86efac;
  --green2:      #4ade80;
  --accent:      #16a34a;
  --white:       #ffffff;
  --shadow-px:   4px 4px 0px #2d6a2d;
  --shadow-card: 3px 3px 0px #a3c9a3;
  --pixel-font:  'Press Start 2P', monospace;
  --mono-font:   'VT323', monospace;
  --body-font:   Inter, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --code-font:   'JetBrains Mono', 'Cascadia Code', 'Fira Code', Consolas, 'Liberation Mono', Menlo, monospace;
  --content-width: 1080px;
}

/* ── Dark mode variables ── */
[data-theme="dark"] {
  --bg:          #0d1a0d;
  --bg2:         #122012;
  --panel:       #162416;
  --panel2:      #1a2e1a;
  --border:      #2d6a2d;
  --border-lite: #1e4a1e;
  --border-dark: #0a1f0a;
  --text:        #d4f5d4;
  --text2:       #a8d8a8;
  --muted:       #5a8a5a;
  --green:       #22c55e;
  --green-dark:  #16a34a;
  --green-glow:  #166534;
  --green2:      #4ade80;
  --accent:      #4ade80;
  --white:       #ffffff;
  --shadow-px:   4px 4px 0px #0a1f0a;
  --shadow-card: 3px 3px 0px #0d1a0d;
}

[data-theme="dark"] .hero {
  background: var(--panel);
}

[data-theme="dark"] .search-input {
  color: var(--text);
}

[data-theme="dark"] .markdown-body :not(pre) > code {
  background: #0f2e1a;
  color: #4ade80;
  border-color: #1e4a2a;
}

[data-theme="dark"] .markdown-body blockquote {
  background: #112211;
}

[data-theme="dark"] .markdown-body tr:nth-child(even) td { background: #122212; }
[data-theme="dark"] .markdown-body tr:hover td { background: #1a321a; }
[data-theme="dark"] .markdown-body td { background: var(--panel); }

[data-theme="dark"] .search-result-item:hover { background: #1a2e1a; }
[data-theme="dark"] .ghost-btn:hover { background: #1a2e1a; }
[data-theme="dark"] .level-btn:hover { background: #1a2e1a !important; }
[data-theme="dark"] .post-card:hover { background: #1e341e; }
[data-theme="dark"] .page-btn:not(.disabled):hover { background: #1a2e1a; }
[data-theme="dark"] .page-num:hover { background: #1a2e1a; }
[data-theme="dark"] .post-search-wrap .search-row:focus-within { box-shadow: var(--shadow-card); }
[data-theme="dark"] .pixel-grid-bg {
  background-image:
    linear-gradient(rgba(34,197,94,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,197,94,0.04) 1px, transparent 1px);
}

/* ── Theme toggle button ── */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1100;
  border: 2px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  width: 52px;
  height: 52px;
  font-size: 22px;
  cursor: pointer;
  box-shadow: var(--shadow-px);
  transition: transform .1s, box-shadow .1s, background .2s, border-color .2s;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: all;
}

.theme-toggle:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px var(--border);
}

.theme-toggle:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; image-rendering: pixelated; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--pixel-font);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background .25s, color .25s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--green-dark); }

.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
}

.pixel-grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(34,197,94,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,197,94,0.07) 1px, transparent 1px);
  background-size: 32px 32px;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px), var(--content-width));
  margin: 32px auto 80px;
}

/* ── Panel (pixelated card) ── */
.panel {
  background: var(--panel);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-px);
  padding: 28px;
  image-rendering: pixelated;
  position: relative;
}

.panel::before {
  content: '';
  position: absolute;
  top: -3px; left: -3px; right: -3px; bottom: -3px;
  border: 1px solid var(--border-lite);
  pointer-events: none;
}

.hero {
  background: var(--panel);
  border: 3px solid var(--border);
  box-shadow: var(--shadow-px);
  padding: 48px 24px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    var(--green) 0px, var(--green) 8px,
    transparent 8px, transparent 16px
  );
}

.hero-badge {
  font-family: var(--mono-font);
  font-size: 16px;
  color: var(--muted);
  letter-spacing: .1em;
  margin-bottom: 20px;
}

.hero-title-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.pixel-icon { font-size: 48px; image-rendering: pixelated; }

.pixel-title {
  font-family: var(--pixel-font);
  font-size: clamp(18px, 4vw, 36px);
  line-height: 1.3;
  color: var(--text);
  text-shadow: 2px 2px 0 var(--border-lite);
}

.pixel-title .green { color: var(--green-dark); }

.hero-text {
  font-family: var(--mono-font);
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: .08em;
}

.level-switch {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.level-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border: 3px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  padding: 20px 32px;
  font-family: var(--pixel-font);
  font-size: 13px;
  cursor: pointer;
  box-shadow: var(--shadow-px);
  transition: transform .1s, box-shadow .1s;
  min-width: 180px;
  position: relative;
}

.level-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--border);
}

.level-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--border);
}

.easy-btn { border-color: var(--green-dark); }
.easy-btn:hover { background: #f0fff0; }

.veryeasy-btn { border-color: var(--accent); }
.veryeasy-btn:hover { background: #f0fff4; }

/* Texsaw 2026 button — amber/trophy accent */
.texsaw2026-btn { border-color: #92400e; }
.texsaw2026-btn:hover { background: #fffbeb; }
.texsaw2026-btn .btn-label { color: #92400e; }

.btn-icon { font-size: 32px; display: block; }
.btn-label { font-size: 14px; font-weight: bold; color: var(--green-dark); }
.btn-sub {
  font-family: var(--mono-font);
  font-size: 14px;
  color: var(--muted);
}

.search-box-wrap {
  max-width: 520px;
  margin: 0 auto;
  text-align: left;
}

.search-label {
  font-family: var(--mono-font);
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: .06em;
}

.search-row {
  display: flex;
  gap: 0;
  border: 3px solid var(--border);
  box-shadow: var(--shadow-card);
}

.search-input {
  flex: 1;
  background: var(--panel);
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--mono-font);
  font-size: 18px;
  padding: 10px 14px;
  letter-spacing: .04em;
}

.search-input::placeholder { color: var(--border-lite); }

.search-btn {
  background: var(--green-dark);
  border: none;
  color: #fff;
  font-family: var(--pixel-font);
  font-size: 11px;
  padding: 10px 18px;
  cursor: pointer;
  transition: background .15s;
}

.search-btn:hover { background: var(--accent); }

/* ── Search results ── */
.search-results {
  margin-top: 12px;
  border: 2px solid var(--border-lite);
  background: var(--panel);
  box-shadow: var(--shadow-card);
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-lite);
  transition: background .12s;
  font-family: var(--mono-font);
  font-size: 17px;
}

.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: #f0fff0; }

.search-result-item .sri-icon { font-size: 18px; }
.search-result-item .sri-title { color: var(--text); flex: 1; }
.search-result-item .sri-level {
  font-family: var(--pixel-font);
  font-size: 9px;
  color: var(--muted);
  background: var(--bg2);
  padding: 3px 6px;
  border: 1px solid var(--border-lite);
}

.search-no-result {
  padding: 12px 14px;
  font-family: var(--mono-font);
  font-size: 16px;
  color: var(--muted);
}

/* ── Status bar ── */
.status-bar {
  margin-top: 12px;
  font-family: var(--mono-font);
  font-size: 15px;
  color: var(--muted);
  padding: 6px 0;
  letter-spacing: .04em;
  min-height: 28px;
}

#list-view { margin-top: 0; }

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  padding-bottom: 16px;
  border-bottom: 2px dashed var(--border-lite);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono-font);
  font-size: 16px;
  flex-wrap: wrap;
}
.bc-root { color: var(--accent); cursor: pointer; }
.bc-root:hover { text-decoration: underline; }
.bc-sep { color: var(--border-lite); }
.bc-mid { color: var(--muted); cursor: pointer; }
.bc-mid:hover { text-decoration: underline; }
.bc-current { color: var(--text); font-weight: bold; }

.ghost-btn {
  border: 2px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  padding: 8px 14px;
  font-family: var(--pixel-font);
  font-size: 9px;
  cursor: pointer;
  box-shadow: 2px 2px 0px var(--border-lite);
  transition: transform .1s, box-shadow .1s;
  white-space: nowrap;
}
.ghost-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border);
  background: #f0fff0;
  text-decoration: none;
}
.ghost-btn:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 20px;
  overflow-y: auto;
  max-height: 62vh;
  padding-right: 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-lite) transparent;
}

.post-grid::-webkit-scrollbar {
  width: 8px;
}
.post-grid::-webkit-scrollbar-track {
  background: transparent;
}
.post-grid::-webkit-scrollbar-thumb {
  background: var(--border-lite);
  border-radius: 4px;
}
.post-grid::-webkit-scrollbar-thumb:hover {
  background: var(--border);
}

.post-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--panel2);
  border: 2px solid var(--border-lite);
  padding: 20px 12px 16px;
  cursor: pointer;
  box-shadow: var(--shadow-card);
  transition: transform .12s, box-shadow .12s, border-color .12s;
  text-align: center;
  position: relative;
}

.post-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--green);
  opacity: 0;
  transition: opacity .15s;
}

.post-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0px var(--border);
  border-color: var(--border);
}
.post-card:hover::before { opacity: 1; }

.post-card:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

.folder-icon {
  font-size: 48px;
  line-height: 1;
  image-rendering: pixelated;
  filter: drop-shadow(1px 1px 0 rgba(34,197,94,0.3));
  transition: transform .15s;
}
.post-card:hover .folder-icon { transform: scale(1.1); }

.folder-name {
  font-family: var(--pixel-font);
  font-size: 9px;
  color: var(--text);
  word-break: break-word;
  line-height: 1.5;
}

.folder-slug {
  font-family: var(--mono-font);
  font-size: 13px;
  color: var(--muted);
}

.post-header-info {
  margin-bottom: 20px;
  padding: 14px 0;
}

.level-badge {
  display: inline-block;
  border: 2px solid var(--border);
  background: var(--green-dark);
  color: #fff;
  font-family: var(--pixel-font);
  font-size: 9px;
  padding: 4px 10px;
  margin-bottom: 12px;
  letter-spacing: .1em;
}

.post-title-display {
  font-family: var(--body-font);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  line-height: 1.3;
}

.post-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.divider-pixel {
  border: none;
  border-top: 3px solid transparent;
  border-image: repeating-linear-gradient(
    90deg,
    var(--border) 0px, var(--border) 8px,
    transparent 8px, transparent 16px
  ) 1;
  margin-bottom: 28px;
}

.markdown-body {
  font-family: var(--body-font);
  font-size: 18px;
  line-height: 1.85;
  color: var(--text2);
}

.markdown-body > :first-child { margin-top: 0; }

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  font-family: var(--body-font);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--green-dark);
  line-height: 1.3;
  margin-top: 2em;
  margin-bottom: .8em;
  position: relative;
}

.markdown-body h1 { font-size: 32px; border-bottom: 3px solid var(--border); padding-bottom: 10px; }
.markdown-body h2 { font-size: 26px; border-bottom: 2px dashed var(--border-lite); padding-bottom: 8px; }
.markdown-body h3 { font-size: 22px; }
.markdown-body h4 { font-size: 18px; }

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote { margin: 1em 0; }

.markdown-body ul, .markdown-body ol { padding-left: 1.6em; }
.markdown-body li { margin: .45em 0; }
.markdown-body strong { color: var(--text); font-weight: 700; }
.markdown-body em { color: var(--text); }

.markdown-body ul li::marker { color: var(--green-dark); }
.markdown-body ol li::marker { color: var(--green-dark); font-family: var(--pixel-font); font-size: 13px; }

.markdown-body pre {
  overflow-x: auto;
  padding: 18px 20px;
  background: #0f172a;
  color: #e5e7eb;
  border: 1px solid #1e293b;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.7;
  position: relative;
}

.markdown-body pre::before {
  content: '';
}

.markdown-body code {
  font-family: var(--code-font);
  font-size: .95em;
}

.markdown-body pre code {
  display: block;
  min-width: max-content;
  background: transparent;
  padding: 0;
  border: 0;
}

.markdown-body :not(pre) > code {
  background: #ecfdf3;
  color: #166534;
  padding: .15em .45em;
  border: 1px solid #bbf7d0;
  border-radius: 6px;
  font-size: .9em;
}

.markdown-body blockquote {
  border-left: 4px solid var(--green-dark);
  padding: 12px 18px;
  background: #f0fff0;
  color: var(--text2);
  border-right: 1px dashed var(--border-lite);
  border-radius: 0 10px 10px 0;
  font-style: italic;
}

.markdown-body table {
  border-collapse: collapse;
  width: 100%;
  display: block;
  overflow-x: auto;
  font-size: 16px;
}

.markdown-body th {
  background: var(--green-dark);
  color: #fff;
  font-family: var(--pixel-font);
  font-size: 10px;
  padding: 10px 14px;
  border: 2px solid var(--border);
  letter-spacing: .06em;
}

.markdown-body td {
  border: 1px solid var(--border-lite);
  padding: 10px 14px;
  background: var(--panel);
}

.markdown-body tr:nth-child(even) td { background: #f0fff0; }
.markdown-body tr:hover td { background: #e6ffe6; }

.markdown-body img {
  display: block;
  max-width: 100%;
  margin: 24px auto;
  border: 1px solid #d1d5db;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  image-rendering: auto;
}

.markdown-body hr {
  border: none;
  border-top: 3px dashed var(--border-lite);
  margin: 28px 0;
}

.markdown-body a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--border-lite);
  text-underline-offset: 3px;
}
.markdown-body a:hover { color: var(--green-dark); text-decoration-color: var(--green-dark); }

.markdown-body pre::-webkit-scrollbar { height: 10px; }
.markdown-body pre::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 999px;
}
.markdown-body pre::-webkit-scrollbar-track { background: #0b1220; }

.hidden { display: none !important; }

@media (max-width: 680px) {
  .shell { margin: 12px auto 60px; }
  .hero { padding: 28px 16px 28px; }
  .panel { padding: 16px; }
  .pixel-title { font-size: 18px; }
  .level-btn { min-width: 140px; padding: 16px 20px; }
  .post-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 14px; max-height: 55vh; }
  .folder-icon { font-size: 36px; }
  .folder-name { font-size: 8px; }
  .markdown-body { font-size: 16px; }
  .markdown-body h1 { font-size: 26px; }
  .markdown-body h2 { font-size: 22px; }
  .markdown-body h3 { font-size: 19px; }
  .post-title-display { font-size: 22px; }
}


.markdown-body pre.hljs,
.markdown-body pre code.hljs,
.markdown-body pre code[class*="language-"] {
  background: #1e1e1e !important;
  color: #d4d4d4;
}

.markdown-body pre {
  background: #1e1e1e;
  border: 1px solid #2d2d30;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.markdown-body pre code.hljs {
  padding: 0;
}

.markdown-body .hljs {
  color: #d4d4d4;
  background: #1e1e1e;
}

.markdown-body .hljs-comment,
.markdown-body .hljs-quote {
  color: #6a9955;
  font-style: italic;
}

.markdown-body .hljs-keyword,
.markdown-body .hljs-selector-tag,
.markdown-body .hljs-name,
.markdown-body .hljs-built_in,
.markdown-body .hljs-type,
.markdown-body .hljs-literal,
.markdown-body .hljs-symbol,
.markdown-body .hljs-bullet,
.markdown-body .hljs-section,
.markdown-body .hljs-link {
  color: #569cd6;
}

.markdown-body .hljs-string,
.markdown-body .hljs-title,
.markdown-body .hljs-attr,
.markdown-body .hljs-template-tag,
.markdown-body .hljs-template-variable {
  color: #ce9178;
}

.markdown-body .hljs-number,
.markdown-body .hljs-regexp,
.markdown-body .hljs-variable,
.markdown-body .hljs-selector-attr,
.markdown-body .hljs-selector-class,
.markdown-body .hljs-selector-pseudo {
  color: #b5cea8;
}

.markdown-body .hljs-meta,
.markdown-body .hljs-meta .hljs-keyword,
.markdown-body .hljs-doctag {
  color: #c586c0;
}

.markdown-body .hljs-function,
.markdown-body .hljs-title.function_,
.markdown-body .hljs-title.class_,
.markdown-body .hljs-class .hljs-title,
.markdown-body .hljs-property {
  color: #dcdcaa;
}

.markdown-body .hljs-subst,
.markdown-body .hljs-punctuation {
  color: #d4d4d4;
}

.markdown-body .hljs-operator {
  color: #d4d4d4;
}

.markdown-body .hljs-params {
  color: #9cdcfe;
}

.markdown-body .hljs-tag {
  color: #569cd6;
}

.markdown-body .hljs-tag .hljs-name,
.markdown-body .hljs-tag .hljs-attr {
  color: #9cdcfe;
}

.markdown-body .hljs-emphasis {
  font-style: italic;
}

.markdown-body .hljs-strong {
  font-weight: 700;
}

/* ── Post-view search bar ── */
.post-search-wrap {
  position: relative;
  margin-bottom: 24px;
  border-top: 2px dashed var(--border-lite);
  padding-top: 18px;
}

.post-search-input {
  font-size: 15px !important;
  padding: 9px 14px !important;
}

.post-search-wrap .search-row {
  border-color: var(--border-lite);
  box-shadow: none;
  transition: border-color .15s, box-shadow .15s;
}

.post-search-wrap .search-row:focus-within {
  border-color: var(--border);
  box-shadow: var(--shadow-card);
}

.post-search-wrap .search-results {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  z-index: 50;
  max-height: 260px;
  overflow-y: auto;
  border-color: var(--border);
}

/* ── Pagination ── */
.post-pagination {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 3px solid transparent;
  border-image: repeating-linear-gradient(
    90deg,
    var(--border-lite) 0px, var(--border-lite) 8px,
    transparent 8px, transparent 16px
  ) 1;
}

.pagination-label {
  font-family: var(--mono-font);
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 14px;
  letter-spacing: .06em;
  text-align: center;
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.page-btn {
  border: 2px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  padding: 7px 14px;
  font-family: var(--pixel-font);
  font-size: 9px;
  cursor: pointer;
  box-shadow: 2px 2px 0px var(--border-lite);
  transition: transform .1s, box-shadow .1s, background .1s;
  white-space: nowrap;
}

.page-btn:not(.disabled):hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0px var(--border);
  background: #f0fff0;
}

.page-btn:not(.disabled):active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

.page-btn.disabled {
  opacity: .35;
  cursor: not-allowed;
  box-shadow: none;
}

.page-numbers {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.page-num {
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border: 2px solid var(--border-lite);
  background: var(--panel2);
  color: var(--text);
  font-family: var(--pixel-font);
  font-size: 9px;
  cursor: pointer;
  transition: transform .1s, box-shadow .1s, background .1s, border-color .1s;
  box-shadow: 2px 2px 0 var(--border-lite);
}

.page-num:hover {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 var(--border);
  border-color: var(--border);
  background: #f0fff0;
}

.page-num:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

.page-num.active {
  background: var(--green-dark);
  color: #fff;
  border-color: var(--border-dark);
  box-shadow: 2px 2px 0 var(--border-dark);
  cursor: default;
  transform: none;
}

.page-num.active:hover {
  transform: none;
  box-shadow: 2px 2px 0 var(--border-dark);
}

.page-ellipsis {
  font-family: var(--mono-font);
  font-size: 18px;
  color: var(--muted);
  padding: 0 4px;
  user-select: none;
}

@media (max-width: 680px) {
  .page-btn { font-size: 8px; padding: 6px 10px; }
  .page-num  { min-width: 30px; height: 30px; font-size: 8px; }
  .pagination-controls { gap: 6px; }
}

/* ── Category buttons (Home: TRAINING / CTF-COMPETITIONS) ── */
.category-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border: 3px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  padding: 20px 32px;
  font-family: var(--pixel-font);
  font-size: 13px;
  cursor: pointer;
  box-shadow: var(--shadow-px);
  transition: transform .1s, box-shadow .1s;
  min-width: 180px;
}

.category-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px var(--border);
}

.category-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--border);
}

/* Training button — keeps the existing green feel */
.training-btn { border-color: var(--green-dark); }
.training-btn:hover { background: #f0fff0; }

/* CTF-Competitions button — amber/trophy accent */
.ctf-btn { border-color: #92400e; }
.ctf-btn:hover { background: #fffbeb; }
.ctf-btn .btn-label { color: #92400e; }

/* Dark mode overrides for category buttons */
[data-theme="dark"] .category-btn:hover { background: #1a2e1a !important; }
[data-theme="dark"] .ctf-btn { border-color: #b45309; }
[data-theme="dark"] .ctf-btn:hover { background: #1c1608 !important; }
[data-theme="dark"] .ctf-btn .btn-label { color: #fbbf24; }

/* Dark mode for texsaw2026 level btn */
[data-theme="dark"] .texsaw2026-btn { border-color: #b45309; }
[data-theme="dark"] .texsaw2026-btn:hover { background: #1c1608 !important; }
[data-theme="dark"] .texsaw2026-btn .btn-label { color: #fbbf24; }

/* CTF / texsaw post-card accent stripe */
.post-card-texsaw::before {
  background: #f59e0b !important;
}

/* Training level-switch inside training-view panel */
.training-level-switch {
  margin-top: 12px;
  margin-bottom: 8px;
}

/* CTF level-switch inside ctf-view panel */
.ctf-level-switch {
  margin-top: 12px;
  margin-bottom: 8px;
}

/* ── Sidebar wrapper & toggle ── */
.sidebar-wrapper {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.sidebar-panel {
  flex: 1;
  transition: opacity .2s, transform .2s;
  min-width: 0;
}

.panel-head-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.sidebar-toggle-btn {
  border-color: var(--border-lite);
  color: var(--muted);
  font-size: 8px;
}

.sidebar-toggle-btn:hover {
  border-color: var(--border);
  color: var(--text);
}

/* Sidebar content area - smoothly collapsible */
.sidebar-content {
  overflow: hidden;
  transition: max-height .3s ease, opacity .25s ease;
  max-height: 2000px;
  opacity: 1;
}

.sidebar-content.collapsed {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

/* Reopen tab button (shown when sidebar is hidden) */
.sidebar-reopen-btn {
  position: sticky;
  top: 80px;
  align-self: flex-start;
  margin-left: 10px;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  border: 3px solid var(--border);
  background: var(--panel);
  color: var(--green-dark);
  font-family: var(--pixel-font);
  font-size: 9px;
  padding: 14px 8px;
  cursor: pointer;
  box-shadow: var(--shadow-px);
  transition: transform .1s, box-shadow .1s, background .15s;
  letter-spacing: .1em;
  white-space: nowrap;
}

.sidebar-reopen-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0px var(--border);
  background: var(--panel2);
}

.sidebar-reopen-btn:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

[data-theme="dark"] .sidebar-reopen-btn {
  color: var(--green2);
}

/* List title bar stays visible above scroll grid */
.list-title-bar {
  font-family: var(--mono-font);
  font-size: 18px;
  color: var(--muted);
  letter-spacing: .06em;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--border-lite);
  position: sticky;
  top: 0;
  background: var(--panel);
  z-index: 2;
}

/* Level-badge color for ctf/texsaw */
.level-badge-texsaw {
  background: #92400e;
}