/* ================================================================
   THE SCHOLAR'S EDIT — PAST PAPERS ARCHIVE & SINGLE
================================================================ */

/* ── ARCHIVE HERO ───────────────────────────────────────────── */
.se-papers-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(80px,12vw,140px) 0 clamp(60px,8vw,100px);
  background: radial-gradient(circle at top left, #f3e5f5 0%, #e8f4f8 60%, #fff1eb 100%);
  text-align: center;
}
.se-papers-hero-bubble {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
  animation: seBubbleFloat 10s ease-in-out infinite;
}
.se-ph-b1 { width:320px;height:320px;background:#e0c3fc;top:-100px;left:-60px; }
.se-ph-b2 { width:260px;height:260px;background:#a1c4fd;bottom:-80px;right:-40px;animation-delay:3s; }
.se-ph-b3 { width:180px;height:180px;background:#ffd1dc;top:30%;left:55%;animation-delay:6s; }

.se-papers-hero-inner {
  position: relative;
  z-index: 2;
}
.se-papers-hero-inner .badge { margin-bottom:16px; }
.se-papers-hero-inner h1 { margin-bottom:14px; }
.se-papers-hero-inner > p  { max-width:620px; margin:0 auto 32px; font-size:1.15rem; }

/* Stats */
.se-archive-stats {
  display: flex;
  justify-content: center;
  gap: clamp(28px,5vw,72px);
  flex-wrap: wrap;
  margin-top: 8px;
}
.se-astat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.se-astat-num {
  font-size: clamp(2rem,4vw,3rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.se-astat-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
}

/* Breadcrumb */
.se-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-light);
  margin-bottom: 18px;
}
.se-breadcrumb a { color: var(--accent); text-decoration:none; }
.se-breadcrumb a:hover { text-decoration: underline; }
.se-breadcrumb-sep { opacity: 0.5; }

/* ── STICKY CONTROLS ────────────────────────────────────────── */
.se-controls-bar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(250,250,250,0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(118,75,162,0.10);
  box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}
.se-controls-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 0;
}

/* Search */
.se-search-wrap {
  position: relative;
  flex: 0 0 auto;
  width: min(240px,100%);
}
.se-search-ico {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  font-size: 15px;
  pointer-events: none;
}
.se-search {
  width: 100%;
  padding: 10px 14px 10px 38px;
  background: #fff;
  border: 1.5px solid rgba(118,75,162,0.18);
  border-radius: var(--radius-pill);
  font-family: var(--font-main);
  font-size: 0.9rem;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--fast) var(--ease), box-shadow var(--fast) var(--ease);
}
.se-search::placeholder { color: var(--color-text-light); }
.se-search:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(118,75,162,0.10);
}

/* Filter pills */
.se-filter-pills {
  display: flex;
  gap: 6px;
  flex: 1;
  flex-wrap: wrap;
}
.se-pill {
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid rgba(118,75,162,0.18);
  background: transparent;
  font-family: var(--font-main);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--fast) var(--ease);
}
.se-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(118,75,162,0.05);
}
.se-pill.active {
  background: linear-gradient(135deg,#667eea,#764ba2);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 14px rgba(118,75,162,0.28);
}

/* Sort + view toggle */
.se-view-row {
  display: flex;
  gap: 6px;
  margin-left: auto;
  align-items: center;
}
.se-sort {
  padding: 8px 14px;
  border: 1.5px solid rgba(118,75,162,0.18);
  border-radius: var(--radius-pill);
  background: #fff;
  font-family: var(--font-main);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  outline: none;
}
.se-vbtn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  background: transparent;
  color: var(--color-text-light);
  font-size: 16px;
  cursor: pointer;
  transition: all var(--fast) var(--ease);
}
.se-vbtn:hover { background: var(--lavender-bg); color: var(--accent); }
.se-vbtn.active {
  background: var(--lavender-bg);
  border-color: rgba(118,75,162,0.25);
  color: var(--accent);
}

/* Result count */
.se-result-count {
  font-size: 0.84rem;
  color: var(--color-text-light);
  font-weight: 500;
  white-space: nowrap;
}

/* ── PAPERS GRID ────────────────────────────────────────────── */
.se-papers-main {
  padding: 48px 0 80px;
  background: var(--color-bg);
}

.se-papers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(310px,100%), 1fr));
  gap: clamp(16px,2.5vw,28px);
  transition: all 0.3s var(--ease);
}
.se-papers-grid.list-view {
  grid-template-columns: 1fr;
  gap: 14px;
}

/* ── PAPER CARD ─────────────────────────────────────────────── */
.se-paper-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-soft);
  transition:
    transform var(--mid) cubic-bezier(0.34,1.56,0.64,1),
    box-shadow var(--mid) var(--ease);

  opacity: 0;
  animation: seCardIn 0.5s var(--ease) both;
  animation-delay: calc(var(--i,0) * 55ms);
}
@keyframes seCardIn {
  from { opacity:0; transform:translateY(22px) scale(0.97); }
  to   { opacity:1; transform:none; }
}
.se-paper-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow-hover);
}

/* List view */
.se-papers-grid.list-view .se-paper-card {
  flex-direction: row;
  border-radius: var(--radius-md);
}
.se-papers-grid.list-view .se-card-thumb-wrap {
  flex: 0 0 200px;
  max-width: 200px;
}
.se-papers-grid.list-view .se-card-thumb {
  height: 100%;
  min-height: 150px;
  aspect-ratio: unset;
}

/* Thumbnail */
.se-card-thumb-wrap { display:block; position:relative; overflow:hidden; flex-shrink:0; }
.se-card-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: linear-gradient(135deg,var(--lavender-bg),var(--pink-bg));
  position: relative;
}
.se-card-thumb img {
  width:100%; height:100%; object-fit:cover;
  transition: transform 0.4s var(--ease);
}
.se-paper-card:hover .se-card-thumb img { transform: scale(1.07); }

/* Placeholder */
.se-card-placeholder {
  width:100%; height:100%;
  display:flex; align-items:center; justify-content:center;
  font-size: clamp(36px,5vw,52px);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: rgba(118,75,162,0.18);
  background: linear-gradient(135deg,#f3e5f5,#fff0f5);
  user-select: none;
}

/* Hover overlay */
.se-card-overlay {
  position:absolute; inset:0;
  background: linear-gradient(135deg,rgba(102,126,234,0.82),rgba(118,75,162,0.70));
  display:flex; align-items:center; justify-content:center;
  opacity:0;
  transition: opacity var(--mid) var(--ease);
}
.se-paper-card:hover .se-card-overlay { opacity:1; }
.se-overlay-cta {
  font-weight:700; font-size:0.9rem; color:var(--accent);
  background:#fff; padding:8px 22px; border-radius:var(--radius-pill);
  transform:translateY(8px);
  transition: transform var(--mid) cubic-bezier(0.34,1.56,0.64,1);
}
.se-paper-card:hover .se-overlay-cta { transform:translateY(0); }

/* Top-right count badge */
.se-count-badge {
  position:absolute; top:12px; right:12px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(118,75,162,0.15);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  line-height:1.3;
  display:flex; flex-direction:column; align-items:center;
}
.se-count-badge span { font-size:0.62rem; color:var(--color-text-light); font-weight:500; text-transform:uppercase; letter-spacing:.05em; }

/* Card body */
.se-card-body {
  padding: 20px 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.se-card-meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
/* smaller badges inside cards */
.se-card-meta-row .badge {
  font-size: 0.68rem;
  padding: 4px 12px;
  margin-bottom: 0;
}
.se-card-code {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-light);
  background: rgba(118,75,162,0.07);
  border: 1px solid rgba(118,75,162,0.12);
  padding: 3px 9px;
  border-radius: 6px;
}
.se-card-level {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-light);
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.07);
  padding: 3px 9px;
  border-radius: 6px;
}

.se-card-title {
  font-size: clamp(1rem,2vw,1.2rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0;
}
.se-card-title a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--fast) var(--ease);
}
.se-card-title a:hover { color: var(--accent); }

.se-card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

/* Years block */
.se-card-years {
  background: rgba(118,75,162,0.04);
  border: 1px solid rgba(118,75,162,0.10);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.se-card-years-hdr {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: 5px;
}
.se-card-years-hdr span { color: var(--accent); }
.se-year-chips { display:flex; flex-wrap:wrap; gap:5px; }
.se-yr {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 6px;
  background: var(--lavender);
  color: #4B0082;
  letter-spacing: 0.03em;
  transition: background var(--fast) var(--ease);
}
.se-yr:hover, .se-paper-card:hover .se-yr { background: #d5ccf0; }
.se-yr-more {
  background: rgba(0,0,0,0.05);
  color: var(--color-text-light);
}

/* Card footer */
.se-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px solid rgba(118,75,162,0.08);
  margin-top: auto;
  gap: 10px;
}
.se-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  transition: gap var(--fast) var(--ease), color var(--fast) var(--ease);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-main);
  padding: 0;
}
.se-card-cta:hover { gap: 9px; color: var(--accent-light); }
.se-card-papers-cnt {
  font-size: 0.78rem;
  color: var(--color-text-light);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── NO RESULTS ─────────────────────────────────────────────── */
.se-no-results {
  text-align: center;
  padding: clamp(60px,10vw,120px) 20px;
  display: none;
}
.se-no-results.show { display: block; }
.se-no-results-ico { font-size: 52px; margin-bottom: 14px; }
.se-no-results h3  { margin-bottom:8px; }
.se-no-results p   { margin-bottom:22px; }

/* ── EMPTY STATE ────────────────────────────────────────────── */
.se-empty-state { text-align:center; padding:80px 20px; }
.se-empty-state-ico { font-size:64px; margin-bottom:18px; }

/* ── PAGINATION ─────────────────────────────────────────────── */
.se-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: clamp(40px,6vw,72px);
}
.se-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-md);
  border: 1.5px solid rgba(118,75,162,0.18);
  background: #fff;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--fast) var(--ease);
  box-shadow: var(--shadow-soft);
}
.se-pagination .page-numbers:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(118,75,162,0.05);
}
.se-pagination .page-numbers.current {
  background: linear-gradient(135deg,#667eea,#764ba2);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 18px rgba(118,75,162,0.28);
}

/* ── SINGLE PAST PAPER ──────────────────────────────────────── */
.se-single-hero {
  background: radial-gradient(circle at top right,#f3e5f5 0%,#fff1eb 100%);
  padding: clamp(60px,8vw,100px) 0 clamp(48px,6vw,80px);
  position: relative;
  overflow: hidden;
}
.se-single-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.se-single-meta-col {}
.se-single-img-col {}
.se-single-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  display: block;
}
.se-single-placeholder {
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg,#f3e5f5,#fff0f5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 80px;
  font-weight: 800;
  color: rgba(118,75,162,0.15);
}

.se-single-badges { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px; }
.se-single-badges .badge { margin-bottom:0; }
.se-single-title { margin-bottom:14px; }
.se-single-desc  { font-size:1.1rem; margin-bottom:24px; }

.se-single-details {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
  margin-bottom: 28px;
}
.se-detail-item { display:flex; flex-direction:column; gap:3px; }
.se-detail-label { font-size:0.72rem; font-weight:700; text-transform:uppercase; letter-spacing:.08em; color:var(--color-text-light); }
.se-detail-value { font-size:0.96rem; font-weight:600; color:var(--color-text); }

.se-single-years { margin-bottom:28px; }
.se-single-years-hdr { font-size:0.85rem; font-weight:700; text-transform:uppercase; letter-spacing:.07em; color:var(--color-text-light); margin-bottom:10px; }
.se-single-year-chips { display:flex; flex-wrap:wrap; gap:7px; }
.se-single-yr {
  font-size:0.84rem; font-weight:700;
  padding:5px 14px; border-radius:8px;
  background:var(--lavender); color:#4B0082;
  text-decoration:none;
  transition: background var(--fast) var(--ease), transform var(--fast) var(--ease);
  display:inline-block;
}
.se-single-yr:hover { background:#d5ccf0; transform:scale(1.06); color:#4B0082; }

.se-single-actions { display:flex; gap:12px; flex-wrap:wrap; }

/* Content below hero */
.se-single-content { padding:var(--section) 0; }
.se-single-content-inner { max-width:860px; }
.se-single-content .se-content-body p { font-size:1.05rem; }

/* Related papers */
.se-related { background:var(--lavender-bg); padding:var(--section) 0; }

/* ── MOBILE ─────────────────────────────────────────────────── */
@media (max-width:900px) {
  .se-controls-inner { flex-wrap:wrap; }
  .se-search-wrap    { width:100%; }
  .se-filter-pills   { overflow-x:auto; flex-wrap:nowrap; padding-bottom:4px; }
  .se-view-row       { margin-left:auto; }

  .se-papers-grid.list-view .se-paper-card { flex-direction:column; }
  .se-papers-grid.list-view .se-card-thumb-wrap { flex:unset; max-width:100%; }
  .se-papers-grid.list-view .se-card-thumb { aspect-ratio:16/9; min-height:unset; }

  .se-single-inner { grid-template-columns:1fr; gap:32px; }
  .se-single-img-col { order:-1; }
}
@media (max-width:600px) {
  .se-papers-grid { grid-template-columns:1fr; }
  .se-single-details { grid-template-columns:1fr; }
  .se-card-body { padding:16px 18px 18px; }
}