/* Video courses, catalog type switch, icon picker, admin user detail, green dot on the profile picture */
.video-frame{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:16px;overflow:hidden}
.video-frame video,.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;background:#000}
.video-missing{display:grid;place-items:center;color:#bbb;font-size:14px}
.video-badge{display:inline-flex;align-items:center;gap:4px;margin-inline-start:8px;padding:2px 9px;border-radius:999px;background:#eaf0ff;color:#3659f4;font-size:11px;font-weight:700}
.role-badge.is-video{background:#eaf0ff;color:#3659f4}
.lesson-video{max-width:860px}.lesson-video .video-frame{margin:14px 0 18px}.lesson-video p{line-height:2.1}
.course-trailer{max-width:860px;margin:26px auto 0;padding:0 22px}.course-trailer h2{display:flex;align-items:center;gap:8px;font-size:20px;margin-bottom:12px}.course-trailer p{margin-top:10px;font-size:13px;color:var(--muted)}
/* catalog: two parts */
.catalog-types{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:0 0 18px}
.catalog-types button{display:flex;align-items:center;gap:12px;text-align:right;padding:14px 18px;border:2px solid var(--line);border-radius:16px;background:#fff;color:#555;transition:border-color 150ms,background 150ms}
.catalog-types button:hover{background:#fafafa}.catalog-types button.active{border-color:#111;background:#111;color:#fff}
.catalog-types strong{display:block;font-size:16px}.catalog-types small{font-size:12px;opacity:.75}
@media (max-width:560px){.catalog-types{gap:8px}.catalog-types button{padding:12px;gap:8px}.catalog-types strong{font-size:14px}}
/* admin: video fields */
.cf-video{display:flex;flex-direction:column;gap:6px;margin:10px 0;padding:12px;border:1px dashed #cfd6ff;border-radius:12px;background:#f8f9ff}
.cf-video-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.cf-video-row input{flex:1;min-width:200px}
.cf-video-status{font-size:12px}
/* admin: subject icon picker */
.cat-icons{grid-column:1/-1;margin-top:8px;display:flex;flex-direction:column;gap:8px}
.icon-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(78px,1fr));gap:8px}
.icon-pick{display:flex;flex-direction:column;align-items:center;gap:5px;padding:10px 4px 8px;border:2px solid #e6e6e6;border-radius:12px;background:#fff;color:#777;transition:border-color 120ms,color 120ms,background 120ms}
.icon-pick small{font-size:10.5px;line-height:1.5;text-align:center}
.icon-pick:hover{border-color:#bbb;color:#333}
.icon-pick.active{border-color:var(--pick,#8c56f3);color:var(--pick,#8c56f3);background:color-mix(in srgb,var(--pick,#8c56f3) 10%,#fff)}
/* admin: users */
.admin-detail{margin-bottom:6px}.admin-user{text-decoration:none;color:inherit}
.ud-head{display:flex;align-items:center;gap:16px;margin:8px 0 20px}.ud-head h2{font-size:22px;margin-bottom:2px}.ud-head span[dir]{color:var(--muted);font-size:13px}.ud-badges{display:flex;gap:8px;margin-top:8px}
.ud-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px;align-items:start}
.ud-card{border:1px solid var(--line);border-radius:16px;padding:18px 20px;background:#fff}
.ud-card h2{display:flex;align-items:center;gap:8px;font-size:16px;margin-bottom:12px}
.ud-row{display:flex;justify-content:space-between;gap:16px;padding:8px 0;border-bottom:1px solid #f0f0f0;font-size:13.5px}.ud-row:last-child{border-bottom:0}
.ud-row span{color:var(--muted);flex-shrink:0}.ud-row b{font-weight:600;text-align:left;word-break:break-word}
.ud-sub{font-size:13px;margin:14px 0 6px;color:#555}
.ud-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column}
.ud-list li{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid #f0f0f0;font-size:13.5px}.ud-list li:last-child{border-bottom:0}.ud-list b{font-weight:600;color:#555;white-space:nowrap}.ud-list a{color:inherit;text-decoration:underline}
/* green dot on the profile picture: new announcement or unread support answer (no animation) */
.profile-button{position:relative;overflow:visible}
.profile-button .avatar{border-radius:50%;overflow:hidden}
.profile-dot{position:absolute;top:-3px;right:-3px;z-index:3;width:14px;height:14px;box-sizing:border-box;border-radius:50%;background:#22c55e;border:2px solid #fff;pointer-events:none}
.profile-dot[hidden]{display:none}

/* admin: subject icon picker as a compact list (replaces the big icon grid) */
.icon-list{border:1px solid #e6e6e6;border-radius:12px;background:#fff}
.icon-list>summary{display:flex;align-items:center;gap:12px;padding:8px 12px;cursor:pointer;list-style:none;min-height:42px}
.icon-list>summary::-webkit-details-marker{display:none}
.icon-list-current{display:inline-flex;align-items:center;gap:8px;color:var(--pick,#8c56f3);font-size:13px}
.icon-list-current b{font-weight:600}
.icon-list-hint{margin-inline-start:auto;font-size:12px;color:#777}
.icon-list[open]>summary{border-bottom:1px solid #eee}
.icon-list-items{display:flex;flex-direction:column;max-height:220px;overflow-y:auto;padding:4px}
.icon-row{display:flex;align-items:center;gap:10px;width:100%;padding:7px 10px;border:0;border-radius:8px;background:transparent;color:#444;font-size:13px;text-align:right}
.icon-row:hover{background:#f5f5f5}
.icon-row.active{background:color-mix(in srgb,var(--pick,#8c56f3) 12%,#fff);color:var(--pick,#8c56f3);font-weight:600}

/* Lesson attachments: admin form + lesson page */
.cf-attach{display:grid;gap:8px;margin:10px 0;padding:12px;border:1px dashed var(--line,#d9d6e6);border-radius:14px}
.cf-att-list,.lesson-attachments ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.cf-att-item{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.cf-att-name{display:inline-flex;align-items:center;gap:6px;min-width:0;overflow-wrap:anywhere}
.lesson-attachments{margin-top:18px;padding:14px 16px;border:1px solid var(--line,#d9d6e6);border-radius:16px;display:grid;gap:10px;text-align:right}
.lesson-attachments strong{display:inline-flex;align-items:center;gap:8px}
.lesson-attachments a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:rgba(127,127,127,.08);color:inherit;text-decoration:none}
.lesson-attachments a:hover{background:rgba(127,127,127,.16)}
.lesson-attachments a span{flex:1;min-width:0;overflow-wrap:anywhere}
.lesson-attachments a small{opacity:.7}