/* ===== WORKSHEETS PAGE ===== */

.ws-hero {
  padding: 120px 0 64px;
  background: linear-gradient(135deg, #F0EEFF 0%, #E8F5FF 100%);
  text-align: center;
}
.ws-hero-inner { max-width: 640px; margin: 0 auto; }
.ws-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.15;
  color: var(--dark);
  margin-bottom: 16px;
}
.ws-hero p {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
}

.ws-main { padding: 56px 0 100px; }

/* Filters */
.ws-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.filter-btn {
  background: #fff;
  border: 2px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 700;
  font-family: var(--font);
  padding: 8px 18px;
  border-radius: 100px;
  cursor: pointer;
  transition: all .2s;
}
.filter-btn:hover { border-color: var(--purple); color: var(--purple); }
.filter-btn.active {
  background: var(--purple);
  border-color: var(--purple);
  color: #fff;
}

/* Stats bar */
.ws-stats-bar {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1.5px solid var(--border);
}

/* Grid */
.ws-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.ws-loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 0;
  color: var(--text-muted);
  font-size: 16px;
  font-weight: 600;
}
.loading-dots { animation: blink 1.2s infinite; }
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.ws-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 0;
  font-size: 16px;
  color: var(--text-muted);
}
.ws-empty span { font-size: 48px; display: block; margin-bottom: 12px; }

/* Worksheet card */
.ws-card {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .25s;
  display: flex;
  flex-direction: column;
}
.ws-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--purple); }

.ws-thumb {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  position: relative;
  overflow: hidden;
}
.ws-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ws-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
}

.ws-subject-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.badge-Math    { background: var(--orange-light); color: var(--orange-dark); }
.badge-English { background: var(--purple-light); color: #4A2F9E; }
.badge-Bengali { background: #FFF0FA; color: #8B1550; }
.badge-Science { background: var(--green-light); color: #085041; }
.badge-Logic   { background: #FFFBF0; color: #7A4F00; }

.ws-pages-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 10px;
  font-weight: 700;
  background: rgba(26,26,46,0.75);
  color: #fff;
  padding: 3px 8px;
  border-radius: 100px;
}

.ws-body {
  padding: 18px 18px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.ws-world {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 6px;
}
.ws-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.25;
}
.ws-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
  flex: 1;
  margin-bottom: 14px;
}
.ws-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.ws-tag {
  font-size: 11px;
  font-weight: 600;
  background: var(--bg-warm);
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
}

.ws-download-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--orange);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  font-family: var(--font);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all .2s;
  width: 100%;
  margin-top: auto;
}
.ws-download-btn:hover { background: var(--orange-dark); transform: none; box-shadow: 0 4px 16px rgba(255,107,53,0.35); }
.ws-download-btn .btn-icon { font-size: 16px; }

/* No file state */
.ws-download-btn.disabled {
  background: var(--border);
  color: var(--text-muted);
  cursor: default;
  pointer-events: none;
}

@media (max-width: 600px) {
  .ws-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .ws-thumb { height: 120px; }
  .ws-thumb-placeholder { font-size: 36px; }
  .ws-title { font-size: 15px; }
  .ws-desc { display: none; }
  .ws-tags { display: none; }
}
@media (max-width: 400px) {
  .ws-grid { grid-template-columns: 1fr; }
}