/* V167: E-Book chapter student UX + upload feedback */
.ebook-choice-panel-clean{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:20px 22px;background:#fff;border:1px solid #dbe5ef;border-radius:18px;box-shadow:0 8px 28px rgba(15,35,60,.07)}
.ebook-choice-copy{min-width:220px}.ebook-choice-eyebrow{display:block;font-size:11px;font-weight:800;letter-spacing:.14em;color:#c59625;margin-bottom:5px}.ebook-choice-copy>b{display:block;color:#10243f;font-size:18px}.ebook-choice-copy>small{display:block;color:#66758a;margin-top:4px}
.ebook-choice-actions-clean{display:flex;align-items:stretch;gap:14px;flex:0 0 auto}.ebook-choice-tile{min-width:190px;display:flex;align-items:center;gap:12px;padding:13px 15px;border-radius:14px;border:1px solid #d9e3ed;background:#f8fbff;color:#10243f;text-align:left;cursor:pointer;transition:.18s ease;box-shadow:0 4px 14px rgba(15,35,60,.04)}.ebook-choice-tile:hover{transform:translateY(-1px);border-color:#c59625;box-shadow:0 8px 20px rgba(15,35,60,.09)}.ebook-choice-notes{background:linear-gradient(135deg,#fffaf0,#fff)}.ebook-choice-pdf{background:linear-gradient(135deg,#f2f8ff,#fff)}.ebook-choice-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:21px;background:#10243f;color:#fff;flex:0 0 auto}.ebook-choice-notes .ebook-choice-icon{background:#c59625}.ebook-choice-pdf .ebook-choice-icon{background:#2563eb}.ebook-choice-tile b{display:block;font-size:14px}.ebook-choice-tile small{display:block;color:#6b7788;font-size:11px;margin-top:2px}.ebook-choice-arrow{margin-left:auto;font-size:20px;color:#c59625}
.ebook-student-resource-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px}.ebook-student-resource-card{width:100%;min-height:74px;display:flex;align-items:center;gap:12px;padding:13px 15px;border:1px solid #dbe5ef;border-radius:14px;background:#fff;color:#10243f;text-align:left;box-shadow:0 4px 14px rgba(15,35,60,.04);cursor:pointer;transition:.18s ease}.ebook-student-resource-card:hover{border-color:#9db7d2;transform:translateY(-1px);box-shadow:0 8px 20px rgba(15,35,60,.08)}.ebook-student-resource-card.is-locked{cursor:default;background:#f7f8fa;opacity:.8}.ebook-resource-card-icon{width:40px;height:40px;border-radius:11px;background:#eef4fa;display:grid;place-items:center;font-size:19px;flex:0 0 auto}.ebook-resource-card-copy{min-width:0;flex:1}.ebook-resource-card-copy b{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ebook-resource-card-copy small{display:block;margin-top:4px;color:#718096;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ebook-resource-card-arrow{font-size:21px;color:#c59625;flex:0 0 auto}.ebook-resource-section{scroll-margin-top:20px}.ebook-resource-section+.ebook-resource-section{margin-top:22px}
#ebookModal .modal,#ebookNoteModal .modal{max-width:760px}#ebookModal input[type=file]{padding:10px;background:#f7f9fc;border:1px dashed #b8c8d8;border-radius:10px;width:100%}#ebookModal .btn-gold:disabled{opacity:.65;cursor:wait}
@media(max-width:800px){.ebook-choice-panel-clean{flex-direction:column;align-items:stretch;gap:16px}.ebook-choice-actions-clean{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:10px}.ebook-choice-tile{min-width:0}.ebook-student-resource-list{grid-template-columns:1fr}}
@media(max-width:520px){.ebook-choice-panel-clean{padding:15px}.ebook-choice-actions-clean{grid-template-columns:1fr}.ebook-choice-tile{min-height:62px}.ebook-student-resource-card{min-height:68px;padding:11px 12px}}