/* ═══════════════════════════════════════════════════
   writeup.css — CTF writeup + CTF index pages (v3)
═══════════════════════════════════════════════════ */

/* ── BREADCRUMB ───────────────────────────────────── */
.breadcrumb { margin: 56px 0 28px; }
.breadcrumb ol {
  display: flex; gap: 8px; list-style: none;
  flex-wrap: wrap; align-items: center;
}
.breadcrumb li {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--grey3);
  display: flex; align-items: center; gap: 8px;
}
.breadcrumb li:not(:last-child)::after { content: '/'; color: var(--border2); }
.breadcrumb a { color: var(--grey3); text-decoration: none; transition: color 0.2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb li[aria-current="page"] { color: var(--white); }

/* ── WRITEUP ARTICLE ──────────────────────────────── */
.writeup-article { padding-bottom: 80px; }

.writeup-meta {
  display: flex; gap: 10px; flex-wrap: wrap;
  align-items: center; margin-bottom: 20px;
}

.meta-platform {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--grey3);
  text-transform: uppercase; letter-spacing: 0.08em;
}

.meta-cat {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; padding: 3px 10px;
  border-radius: 20px; text-transform: uppercase;
  letter-spacing: 0.05em; font-weight: 500;
}
.cat-web-exploitation { background: rgba(52,152,219,0.1); color: #5dade2; border: 1px solid rgba(52,152,219,0.2); }
.cat-forensics { background: rgba(142,68,173,0.1); color: #a569bd; border: 1px solid rgba(142,68,173,0.2); }

.meta-diff {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; padding: 3px 10px;
  border-radius: 20px; font-weight: 500;
}
.diff-easy { background: rgba(46,204,113,0.1); color: #58d68d; border: 1px solid rgba(46,204,113,0.2); }
.diff-medium { background: rgba(230,126,34,0.12); color: #f0a04b; border: 1px solid rgba(230,126,34,0.2); }
.diff-hard { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(230,57,70,0.25); }

.meta-pts {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--grey3);
}

.writeup-title {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 700; color: var(--white);
  line-height: 1.12; letter-spacing: -0.02em; margin-bottom: 14px;
}

.meta-owasp {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--grey3); margin-bottom: 14px;
}
.owasp-label { color: var(--accent); margin-right: 6px; font-weight: 600; }

.writeup-author {
  font-size: 13px; color: var(--grey3);
  margin-bottom: 48px; padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.writeup-author a { color: var(--accent); text-decoration: none; }
.writeup-author a:hover { text-decoration: underline; }

/* ── WRITEUP BODY ─────────────────────────────────── */
.writeup-body h2 {
  font-size: 19px; font-weight: 600; color: var(--white);
  margin: 48px 0 16px; padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.writeup-body h2:first-child { margin-top: 0; }

.writeup-body p {
  font-size: 15px; color: var(--grey2);
  line-height: 1.85; margin-bottom: 16px;
}
.writeup-body p strong { color: var(--white); font-weight: 500; }

.writeup-body ul { margin: 0 0 16px 0; padding-left: 20px; }
.writeup-body ul li {
  font-size: 15px; color: var(--grey2);
  line-height: 1.75; margin-bottom: 6px;
}

.writeup-body code {
  font-family: 'JetBrains Mono', monospace; font-size: 12.5px;
  background: var(--surface2); color: var(--accent);
  padding: 2px 7px; border-radius: 4px; border: 1px solid var(--border);
}

/* ── CODE BLOCKS ──────────────────────────────────── */
.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: var(--radius-lg); margin: 20px 0; overflow-x: auto;
  position: relative;
}
.code-block pre { margin: 0; padding: 20px 24px; }
.code-block code {
  font-family: 'JetBrains Mono', monospace; font-size: 12.5px;
  color: #9aa5b8; background: none; border: none;
  padding: 0; line-height: 1.75; white-space: pre;
}

/* ── FIX TABLE ────────────────────────────────────── */
.fix-table { margin: 20px 0; overflow-x: auto; }
.fix-table table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.fix-table thead tr {
  background: var(--surface2); border-bottom: 1px solid var(--border2);
}
.fix-table th {
  text-align: left; padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace; font-size: 10.5px;
  font-weight: 500; color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.fix-table td {
  padding: 12px 16px; color: var(--grey2);
  border-bottom: 1px solid var(--border); vertical-align: top; line-height: 1.65;
}
.fix-table td code {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  background: var(--surface2); color: var(--accent);
  padding: 1px 6px; border-radius: 3px; border: 1px solid var(--border);
}
.fix-table tbody tr:last-child td { border-bottom: none; }
.fix-table tbody tr:hover td { background: var(--surface); }

/* ── TAKEAWAY ─────────────────────────────────────── */
.takeaway {
  background: var(--accent-dim);
  border: 1px solid rgba(230,57,70,0.15);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-lg);
  padding: 20px 24px; margin: 32px 0;
  font-size: 14.5px; color: var(--grey2); line-height: 1.8;
}
.takeaway strong { color: var(--white); }

/* ── FLAG DISPLAY ─────────────────────────────────── */
.writeup-flag {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px 24px;
  margin: 48px 0 32px;
}
.flag-label {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  color: var(--accent); text-transform: uppercase;
  letter-spacing: 0.14em; font-weight: 600; white-space: nowrap; flex-shrink: 0;
}
.flag-value {
  font-family: 'JetBrains Mono', monospace; font-size: 13px;
  color: var(--white); background: none; border: none; padding: 0; word-break: break-all;
}

/* ── WRITEUP FOOTER NAV ───────────────────────────── */
.writeup-footer-nav {
  display: flex; gap: 14px; flex-wrap: wrap;
  padding-top: 20px; border-top: 1px solid var(--border);
}

/* ── CTF MAIN INDEX ───────────────────────────────── */
.ctf-main-heading {
  font-size: clamp(36px, 6vw, 58px);
  font-weight: 700; color: var(--white);
  letter-spacing: -0.03em; margin-bottom: 16px;
}
.ctf-main-heading span { color: var(--accent); }

.ctf-main-sub {
  font-size: 16px; color: var(--grey2);
  line-height: 1.8; max-width: 580px; margin-bottom: 48px;
}

.ctf-stats-row {
  display: flex; gap: 0;
  padding: 32px 0; flex-wrap: wrap;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}

.ctf-stat { display: flex; flex-direction: column; gap: 4px; padding-right: 40px; margin-right: 40px; border-right: 1px solid var(--border); }
.ctf-stat:last-child { border-right: none; }
.cs-num { font-size: 38px; font-weight: 700; color: var(--white); line-height: 1; }
.cs-plus { color: var(--accent); }
.cs-label { font-family: 'JetBrains Mono', monospace; font-size: 10.5px; color: var(--grey3); text-transform: uppercase; letter-spacing: 0.1em; }

/* ── CTF SECTIONS ─────────────────────────────────── */
.ctf-section { margin-bottom: 72px; }

.ctf-section-header {
  display: flex; justify-content: space-between;
  align-items: flex-start; gap: 24px; margin-bottom: 24px; flex-wrap: wrap;
}

.ctf-section-title {
  font-size: 21px; font-weight: 600; color: var(--white);
  margin-bottom: 8px; display: flex; align-items: center; gap: 12px;
}

.cat-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.cat-web { background: #5dade2; }
.cat-forensics { background: #a569bd; }

.ctf-section-sub { font-size: 13px; color: var(--grey2); line-height: 1.65; max-width: 520px; }
.cat-btn { font-size: 13px; white-space: nowrap; }

/* ── MINI GRID ────────────────────────────────────── */
.mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 8px;
}

.mini-card {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.2s, transform 0.15s, background 0.2s;
}
.mini-card:hover, .mini-card:focus {
  border-color: var(--accent); transform: translateX(4px);
  background: var(--surface2);
}

.mini-diff {
  font-family: 'JetBrains Mono', monospace; font-size: 9px;
  padding: 2px 8px; border-radius: 20px; font-weight: 500;
  text-transform: uppercase; flex-shrink: 0;
}

.mini-title { font-size: 13px; color: var(--white); font-weight: 500; flex: 1; line-height: 1.35; }
.mini-arrow { font-size: 11px; color: var(--grey3); flex-shrink: 0; transition: color 0.2s; }
.mini-card:hover .mini-arrow { color: var(--accent); }

/* ── GITHUB CTA ───────────────────────────────────── */
.ctf-github-cta {
  text-align: center; padding: 48px 32px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); margin-top: 32px; margin-bottom: 64px;
}
.ctf-github-cta p { color: var(--grey2); font-size: 15px; margin-bottom: 20px; }

/* ── CTF CATEGORY INDEX ───────────────────────────── */
.ctf-cat-heading {
  font-size: clamp(30px, 5vw, 50px);
  font-weight: 700; color: var(--white);
  letter-spacing: -0.02em; margin-bottom: 14px;
}
.ctf-cat-sub {
  font-size: 15px; color: var(--grey2);
  line-height: 1.8; max-width: 580px; margin-bottom: 48px;
}
.ctf-cat-sub code {
  font-family: 'JetBrains Mono', monospace; font-size: 12px;
  background: var(--surface2); color: var(--accent);
  padding: 1px 7px; border-radius: 3px; border: 1px solid var(--border);
}

/* ── CTF INDEX CARD GRID ──────────────────────────── */
.ctf-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 14px; margin-bottom: 48px;
}

.ctf-index-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px 24px;
  display: flex; flex-direction: column; gap: 14px;
  transition: border-color 0.2s, transform 0.15s; position: relative; overflow: hidden;
}
.ctf-index-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--accent); transform: scaleY(0); transform-origin: bottom;
  transition: transform 0.3s ease;
}
.ctf-index-card:hover { border-color: var(--border2); transform: translateX(4px); }
.ctf-index-card:hover::before { transform: scaleY(1); }

.cic-top { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.cic-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.cic-title { font-size: 15px; font-weight: 600; color: var(--white); line-height: 1.3; }
.cic-title a { color: inherit; text-decoration: none; }
.cic-title a:hover { color: var(--accent); }
.cic-desc { font-size: 13px; color: var(--grey2); line-height: 1.65; }
.cic-link {
  font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--accent);
  text-decoration: none; letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px; transition: gap 0.2s; margin-top: auto;
}
.cic-link:hover { gap: 10px; }

.ctf-back { padding-top: 20px; border-top: 1px solid var(--border); }

/* ── RESPONSIVE ───────────────────────────────────── */
@media (max-width: 640px) {
  .ctf-section-header { flex-direction: column; }
  .mini-grid { grid-template-columns: 1fr; }
  .ctf-index-grid { grid-template-columns: 1fr; }
  .ctf-stats-row { gap: 24px; }
  .ctf-stat { border-right: none; padding-right: 0; margin-right: 0; }
  .writeup-footer-nav { flex-direction: column; }
  .writeup-flag { flex-direction: column; align-items: flex-start; gap: 8px; }
}