:root {
  --bg: #0b0c10;
  --card: #12141b;
  --text: #e8eaf0;
  --muted: #a8adbd;
  --line: #232634;
  --accent: #7aa2ff;
  --max: 1100px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

/* ===== Header / Nav ===== */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,12,16,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  gap: 12px;
  align-items: center;
}
.brand { font-weight: 800; letter-spacing: .2px; }
.navlinks { display: flex; gap: 12px; margin-left: 8px; }
.navlinks a { color: var(--muted); }
.navlinks a.active { color: var(--text); }

.searchwrap {
  margin-left: auto;
  display: flex;
  gap: 8px;
  align-items: center;
  width: min(520px, 100%);
}
.searchwrap input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0f1118;
  color: var(--text);
  outline: none;
}
.searchwrap input::placeholder { color: #78809a; }

/* ===== Layout / Typography ===== */
main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 16px 40px;
}
h1 { margin: 10px 0 14px; font-size: 28px; }
h2 { margin: 24px 0 12px; font-size: 18px; color: var(--muted); font-weight: 700; }

.grid { display: grid; gap: 12px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 820px) { .grid.two { grid-template-columns: 1fr; } }

/* ===== Cards / Rows / Buttons ===== */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}
.row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}
.meta { color: var(--muted); font-size: 13px; }

.btn {
  display: inline-block;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0f1118;
  color: var(--text);
}
.btn:hover { border-color: #33406a; color: var(--accent); }

/* ===== Review List Items ===== */
.list { display: grid; gap: 10px; }
.review-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--card);
}
.review-left { display: grid; gap: 4px; }
.title { font-weight: 800; }
.small { font-size: 13px; color: var(--muted); }

/* ===== PDF Viewer Shell (Canvas Pages) ===== */
.viewer-shell {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.viewer-top {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  background: #0f1118;
}
.viewer-top .spacer { margin-left: auto; }

.viewer-top button {
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0b0c10;
  color: var(--text);
}
.viewer-top button:hover { border-color: #33406a; color: var(--accent); }

#pdfPages {
  padding: 12px;
  display: grid;
  gap: 12px;
}
.pdf-page {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: #0b0c10;
}
.pdf-page canvas {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== Text-only fallback styling (if used anywhere) ===== */
.review-text p {
  line-height: 1.75;
  margin: 0 0 12px;
  font-size: 16px;
  color: var(--text);
}

/* ===== Reviewer “Folders” (details/summary) ===== */
.series {
  margin-top: 14px;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
}
.series summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 800;
}
.series summary::-webkit-details-marker { display: none; }
.series summary .meta {
  font-weight: 600;
  color: var(--muted);
  font-size: 13px;
}
.series .series-body {
  padding: 10px 10px 12px;
  border-top: 1px solid var(--line);
}
.series .series-body .review-item { margin: 8px 0; }

.chev {
  display: inline-block;
  transform: rotate(0deg);
  transition: transform 120ms ease;
  color: var(--muted);
  margin-left: 10px;
}
details[open] .chev { transform: rotate(90deg); }

/* ===== Review Page: Right-side Ad Rail =====
   Used by review.html: <main class="two-col"> + <aside class="ad-rail"> */
.two-col{
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 16px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 28px;
  align-items: start;
}

.ad-rail{
  position: sticky;
  top: 90px;
}

.ad-box{
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
}

.ad-label{
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .02em;
}

.ad-placeholder{
  padding: 18px 12px;
  min-height: 250px;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1000px){
  .two-col{
    grid-template-columns: 1fr;
  }
  .ad-rail{
    display: none;
  }
}