html, body {
  width: 100%;
  overflow-x: hidden;
}
body {
  font-family: "Times New Roman", Times, serif;
  -webkit-font-smoothing: antialiased;
}
.card { border-radius: 16px; }

/* Chat widget (teacher/admin only) */
.chat-widget{
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1050;
}
.chat-fab{
  width: 56px;
  height: 56px;
  border-radius: 999px;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0ea5a4, #0f766e);
  color: #fff;
  box-shadow: 0 14px 30px rgba(14, 116, 110, 0.35);
  transition: transform .2s ease, box-shadow .2s ease;
}
.chat-fab:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(14, 116, 110, 0.42);
}
.chat-fab .chat-unread{
  position: absolute;
  top: -4px;
  right: -2px;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 999px;
  background: #dc2626;
  color: #fff;
  font-size: 11px;
  line-height: 20px;
  text-align: center;
  border: 2px solid #fff;
  display: none;
}
.chat-panel{
  position: absolute;
  right: 0;
  bottom: 72px;
  width: 500px;
  height: 520px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.25);
  display: none;
  overflow: hidden;
}
.chat-panel.is-open{ display: flex; flex-direction: column; }
.chat-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: linear-gradient(180deg, rgba(14,165,164,.15), rgba(255,255,255,0));
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}
.chat-title{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: #0f172a;
}
.chat-min{
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  border-radius: 10px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.chat-body{
  display: grid;
  grid-template-columns: 200px 1fr;
  height: 100%;
  min-height: 0;
}
.chat-sidebar{
  border-right: 1px solid rgba(15, 23, 42, 0.06);
  background: #f8fafc;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
}
.chat-sidebar-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  background: #f8fafc;
}
.chat-sidebar-title{
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #64748b;
}
.chat-sidebar-btn{
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  color: #0f766e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.chat-sidebar-btn:hover{
  background: #eef2f7;
}
.chat-sidebar-body{
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}
.chat-section{
  padding: 8px 0;
}
.chat-section-title{
  padding: 4px 12px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #94a3b8;
}
.chat-section-list{
  display: flex;
  flex-direction: column;
}
.chat-sidebar-panel{
  position: absolute;
  inset: 0;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.2s ease;
  z-index: 2;
}
.chat-sidebar-panel.is-open{
  transform: translateX(0);
}
.chat-sidebar-panel-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
}
.chat-sidebar-panel-title{
  font-size: 13px;
  font-weight: 700;
  color: #0f172a;
}
.chat-sidebar-panel-body{
  flex: 1;
  overflow-y: auto;
}
.chat-sidebar-empty{
  padding: 12px;
  font-size: 12px;
  color: #64748b;
  text-align: center;
}
.chat-thread{
  padding: 10px 12px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
  cursor: pointer;
}
.chat-thread.active{ background: #e2f5f4; }
.chat-thread .name{
  font-size: 13px;
  font-weight: 600;
  color: #0f172a;
}
.chat-thread .meta{
  font-size: 11px;
  color: #64748b;
}
.chat-thread .badge{
  background: #dc2626;
}
.chat-main{
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}
.chat-messages{
  flex: 1;
  padding: 14px;
  overflow: auto;
  background:
    radial-gradient(circle at 10% 10%, rgba(14,165,164,.08), transparent 45%),
    radial-gradient(circle at 90% 20%, rgba(59,130,246,.08), transparent 45%),
    #fff;
}
.chat-empty{
  color: #64748b;
  font-size: 13px;
  text-align: center;
  margin-top: 40px;
}
.chat-row{
  display: flex;
  margin-bottom: 10px;
}
.chat-row.me{ justify-content: flex-end; }
.chat-bubble{
  max-width: 80%;
  padding: 8px 12px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.3;
  background: #f1f5f9;
  color: #0f172a;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.chat-row.me .chat-bubble{
  background: #0f766e;
  color: #fff;
}
.chat-time{
  font-size: 10px;
  color: #94a3b8;
  margin-top: 4px;
  text-align: right;
}
.chat-input{
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid rgba(15, 23, 42, 0.06);
  background: #fff;
  align-items: center;
  flex-wrap: wrap;
}
.chat-attach-btn{
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  color: #0f766e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.chat-attach-btn:hover{
  background: #f1f5f9;
}
.chat-attach-input{ display: none; }
.chat-record-btn{
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  color: #0f766e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.chat-record-btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}
.chat-record-btn.is-recording{
  background: #ef4444;
  color: #fff;
  border-color: rgba(239, 68, 68, 0.4);
  box-shadow: 0 0 0 6px rgba(239, 68, 68, 0.12);
  animation: chatRecordPulse 1.2s ease infinite;
}
.chat-attach-clear{
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  color: #ef4444;
  display: none;
  align-items: center;
  justify-content: center;
}
.chat-attach-clear:hover{
  background: #fee2e2;
}
.chat-input textarea{
  flex: 1;
  resize: none;
  min-height: 42px;
  max-height: 120px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
}
.chat-input button{
  border-radius: 12px;
  border: none;
  background: #0f766e;
  color: #fff;
  padding: 0 14px;
}
.chat-input button.chat-record-btn,
.chat-input button.chat-attach-clear{
  padding: 0;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.12);
}
.chat-input button.chat-record-btn{
  color: #0f766e;
}
.chat-input button.chat-attach-clear{
  color: #ef4444;
}
.chat-input button.chat-record-btn.is-recording{
  background: #ef4444;
  color: #fff;
  border-color: rgba(239, 68, 68, 0.4);
}
.chat-attach-meta{
  width: 100%;
  font-size: 11px;
  color: #64748b;
  padding-left: 88px;
  margin-top: -2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-attach-error{
  width: 100%;
  font-size: 11px;
  color: #b91c1c;
  padding-left: 88px;
  margin-top: -4px;
  display: none;
}
.chat-text{ margin-bottom: 6px; }
.chat-attachment{
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.chat-audio-card{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  background: linear-gradient(135deg, #f8fafc, #eef2ff);
  border: 1px solid rgba(15, 23, 42, 0.08);
  height: 60px;
  width: 260px;
  max-width: 100%;
}
.chat-audio-btn{
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  color: #0f766e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}
.chat-audio-btn.is-playing{
  background: #0f766e;
  color: #ffffff;
  border-color: rgba(15, 118, 110, 0.4);
}
.chat-audio-body{
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.chat-audio-top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
}
.chat-audio-title{
  font-size: 12px;
  font-weight: 600;
  color: #0f172a;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.chat-audio-meta-text{
  font-size: 11px;
  color: #64748b;
  white-space: nowrap;
  flex-shrink: 0;
}
.chat-audio-track{
  height: 6px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.1);
  overflow: hidden;
  cursor: pointer;
}
.chat-audio-progress{
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #0f766e, #38bdf8);
}
.chat-audio-download{
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  color: #0f766e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
}
.chat-audio-download:hover{
  background: #f1f5f9;
}
.chat-audio-el{
  display: none;
}
.chat-attachment-media{
  width: 200px;
  height: 120px;
  max-width: 100%;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #fff;
  display: block;
}
.chat-attachment-audio{
  width: 220px;
  max-width: 100%;
  height: 60px;
  display: block;
}
.chat-attachment-file{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.06);
  color: inherit;
  text-decoration: none;
}
.chat-attachment-meta{
  font-size: 11px;
  color: #94a3b8;
}
.chat-attachment-meta.is-link{
  text-decoration: none;
  color: #64748b;
}
.chat-attachment-meta.is-link:hover{
  text-decoration: underline;
}
.chat-row.me .chat-attachment-file{
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}
.chat-row.me .chat-attachment-meta{
  color: rgba(255, 255, 255, 0.75);
}
.chat-row.me .chat-attachment-meta.is-link{
  color: rgba(255, 255, 255, 0.75);
}
.chat-row.me .chat-attachment-media{
  border-color: rgba(255, 255, 255, 0.25);
}
.chat-row.me .chat-audio-card{
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.25);
}
.chat-row.me .chat-audio-title{
  color: #ffffff;
}
.chat-row.me .chat-audio-meta-text{
  color: rgba(255, 255, 255, 0.75);
}
.chat-row.me .chat-audio-track{
  background: rgba(255, 255, 255, 0.2);
}
.chat-row.me .chat-audio-progress{
  background: linear-gradient(90deg, #ffffff, #d1fae5);
}
.chat-row.me .chat-audio-btn{
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
}
.chat-row.me .chat-audio-btn.is-playing{
  background: #ffffff;
  color: #0f766e;
}
.chat-row.me .chat-audio-download{
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
}

@keyframes chatRecordPulse{
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.55); }
  70% { box-shadow: 0 0 0 12px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Module dock (teacher) */
.module-dock{
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1040;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.module-dock.right{
  left: auto;
  right: 20px;
}
.module-dock .dock-form{ margin: 0; }
.module-dock .dock-btn{
  width: 62px;
  height: 180px;
  border-radius: 22px;
  text-decoration: none;
  color: #0f172a;
  background: linear-gradient(180deg, #ffffff, #f1f5f9);
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.18em;
  font-size: 12px;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.module-dock .dock-btn.reading{
  background: linear-gradient(180deg, #e0f2fe, #f8fafc);
  border-color: rgba(2, 132, 199, 0.25);
  color: #075985;
}
.module-dock .dock-btn.listening{
  background: linear-gradient(180deg, #ecfeff, #f0fdfa);
  border-color: rgba(13, 148, 136, 0.25);
  color: #0f766e;
}
.module-dock .dock-btn.writing{
  background: linear-gradient(180deg, #fef9c3, #fefce8);
  border-color: rgba(202, 138, 4, 0.25);
  color: #92400e;
}
.module-dock .dock-btn.speaking{
  background: linear-gradient(180deg, #ede9fe, #f5f3ff);
  border-color: rgba(109, 40, 217, 0.25);
  color: #5b21b6;
}
.module-dock .dock-btn:hover,
.module-dock .dock-btn.active{
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.18);
  border-color: rgba(15, 23, 42, 0.22);
}

/* Module pages */
.module-shell{
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: start;
}
.module-sidebar{
  position: sticky;
  top: 90px;
  padding: 18px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.08);
}
.module-sidebar .module-label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #64748b;
}
.module-sidebar .module-title{
  font-size: 18px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 16px;
}
.module-nav{
  display: grid;
  gap: 10px;
}
.module-nav-btn{
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  background: #f8fafc;
  color: #0f172a;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.module-nav-btn.active{
  background: #0f172a;
  border-color: rgba(15, 23, 42, 0.8);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.18);
}
.module-nav-btn:hover{
  transform: translateY(-1px);
  border-color: rgba(15, 23, 42, 0.2);
}
.module-nav-btn.cta{
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #ffffff;
  border: none;
}
.module-content{
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.module-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.module-filter{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: #f1f5f9;
  border: 1px solid rgba(15, 23, 42, 0.08);
}
.module-filter .filter-btn{
  border: none;
  background: transparent;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
  color: #475569;
}
.module-filter .filter-btn.active{
  background: #ffffff;
  color: #0f172a;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.15);
}
.module-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
.module-card{
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  position: relative;
  isolation: isolate;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.module-card:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 32px rgba(15, 23, 42, 0.12);
}
.module-card-thumb{
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: #0f172a;
  background: linear-gradient(135deg, rgba(226, 232, 240, 0.9), rgba(241, 245, 249, 0.5));
}
.module-card-thumb.reading{
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(255, 255, 255, 0.9));
  color: #0369a1;
}
.module-card-thumb.listening{
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.2), rgba(255, 255, 255, 0.9));
  color: #0f766e;
}
.module-card-body{
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.module-card-kicker{
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: #94a3b8;
}
.module-card-title{
  font-size: 15px;
  font-weight: 700;
  color: #0f172a;
  line-height: 1.3;
}
.module-card-desc{
  font-size: 12px;
  color: #64748b;
  min-height: 32px;
}
.module-card-meta{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #475569;
}
.module-card-overlay{
  position: absolute;
  inset: 0;
  border-radius: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.55));
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.module-card:hover .module-card-overlay,
.module-card:focus-within .module-card-overlay{
  opacity: 1;
  pointer-events: auto;
}
.module-card-overlay .module-card-btn{
  border: none;
  border-radius: 999px;
  padding: 8px 16px;
  font-weight: 700;
  background: #ffffff;
  color: #0f172a;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.2);
}
.module-card-overlay .module-card-btn:hover{
  transform: translateY(-1px);
}
.module-card-overlay-text{
  padding: 8px 14px;
  border-radius: 999px;
  background: #ffffff;
  color: #0f172a;
  font-weight: 700;
  font-size: 13px;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.2);
}
.module-part-card{
  cursor: pointer;
}
.module-card.is-selected{
  border-color: rgba(13, 110, 253, 0.45);
  box-shadow: 0 14px 30px rgba(13, 110, 253, 0.18);
}
.module-card-check{
  position: absolute;
  top: 10px;
  right: 10px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #2563eb;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.module-card.is-selected .module-card-check{
  opacity: 1;
  transform: scale(1);
}
.module-action-bar{
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 16px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: sticky;
  bottom: 10px;
  z-index: 5;
}
.module-action-bar.is-error{
  border-color: rgba(220, 38, 38, 0.4);
  box-shadow: 0 12px 26px rgba(220, 38, 38, 0.12);
}
.module-action-left{
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.module-action-title{
  font-weight: 700;
  color: #0f172a;
}
.module-action-meta{
  font-size: 13px;
  color: #475569;
}
.module-action-right{
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.module-action-hint{
  font-size: 12px;
  color: #64748b;
}
.module-action-bar.is-error .module-action-hint{
  color: #b91c1c;
}
.module-empty{
  padding: 18px;
  border-radius: 14px;
  border: 1px dashed rgba(15, 23, 42, 0.2);
  color: #64748b;
  text-align: center;
  background: #f8fafc;
}

.tasks-shell{
  --tasks-ink: #0f172a;
  --tasks-muted: #475569;
  --tasks-accent: #f97316;
  --tasks-accent-strong: #ea580c;
  --tasks-border: rgba(15, 23, 42, 0.08);
  --tasks-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
  display: grid;
  gap: 24px;
}
.tasks-hero{
  position: relative;
  padding: 32px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 15% 20%, rgba(249, 115, 22, 0.18), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(14, 116, 144, 0.18), transparent 50%),
    linear-gradient(135deg, #fff7ed 0%, #eef2ff 45%, #ecfeff 100%);
  border: 1px solid var(--tasks-border);
  overflow: hidden;
}
.tasks-hero-inner{
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.tasks-kicker{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 700;
  color: var(--tasks-accent-strong);
}
.tasks-title{
  margin-top: 10px;
  margin-bottom: 8px;
  font-size: clamp(28px, 3.3vw, 42px);
  font-weight: 700;
  color: var(--tasks-ink);
}
.tasks-subtitle{
  margin: 0;
  font-size: 15px;
  color: var(--tasks-muted);
}
.tasks-hero-stat{
  min-width: 180px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid var(--tasks-border);
  box-shadow: var(--tasks-shadow);
}
.tasks-stat-label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--tasks-muted);
  font-weight: 700;
}
.tasks-stat-value{
  font-size: 28px;
  font-weight: 700;
  color: var(--tasks-ink);
}
.tasks-compose{
  display: grid;
  gap: 18px;
}
.tasks-compose-grid{
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: start;
}
.tasks-card{
  background: #ffffff;
  border: 1px solid var(--tasks-border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--tasks-shadow);
  display: grid;
  gap: 16px;
}
.tasks-card-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tasks-card-title{
  font-weight: 700;
  color: var(--tasks-ink);
}
.tasks-card-subtitle{
  font-size: 13px;
  color: var(--tasks-muted);
}
.tasks-badge{
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(249, 115, 22, 0.12);
  color: var(--tasks-accent-strong);
  font-weight: 600;
  font-size: 12px;
}
.tasks-form-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.tasks-form-full{
  grid-column: 1 / -1;
}
.tasks-due-picker .input-group-text{
  background: #f8fafc;
  border-color: rgba(15, 23, 42, 0.12);
}
.task-file-list{
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.task-file-pill{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
  font-size: 13px;
}
.task-file-name{
  font-weight: 600;
  color: var(--tasks-ink);
  flex: 1 1 auto;
}
.task-file-size{
  color: var(--tasks-muted);
}
.task-file-remove{
  color: #dc2626;
}
.tasks-recipient-tools{
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.tasks-recipient-count{
  font-size: 13px;
  color: var(--tasks-muted);
}
.tasks-section-title{
  font-weight: 700;
  color: var(--tasks-ink);
  margin-bottom: 8px;
}
.task-group-grid{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.task-group-pill{
  position: relative;
  display: inline-flex;
}
.task-group-pill input{
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.task-group-pill-body{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.task-group-pill input:checked + .task-group-pill-body{
  background: var(--tasks-accent-strong);
  border-color: var(--tasks-accent-strong);
  color: #ffffff;
  box-shadow: 0 10px 22px rgba(234, 88, 12, 0.25);
}
.task-group-pill-count{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  background: rgba(249, 115, 22, 0.12);
  color: var(--tasks-accent-strong);
}
.task-group-pill input:checked + .task-group-pill-body .task-group-pill-count{
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}
.tasks-student-table{
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 16px;
  overflow: hidden;
}
.tasks-student-wrap{
  max-height: 320px;
  overflow: auto;
}
.tasks-student-table thead th{
  position: sticky;
  top: 0;
  z-index: 1;
  background: #f8fafc;
}
.tasks-compose-footer{
  display: flex;
  justify-content: flex-end;
  margin-top: 6px;
}
.tasks-list{
  display: grid;
  gap: 14px;
}
.tasks-filter-card{
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--tasks-border);
  background: #ffffff;
  box-shadow: var(--tasks-shadow);
}
.tasks-filter-item{
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 200px;
}
.tasks-filter-grow{
  flex: 1 1 260px;
}
.tasks-filter-label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--tasks-muted);
}
.tasks-filter-input .input-group-text{
  background: #f8fafc;
  border-color: rgba(15, 23, 42, 0.12);
  color: var(--tasks-muted);
}
.tasks-filter-input .form-control,
.tasks-filter-input .form-select{
  border-color: rgba(15, 23, 42, 0.12);
}
.tasks-filter-input .form-control:focus,
.tasks-filter-input .form-select:focus{
  border-color: rgba(249, 115, 22, 0.45);
  box-shadow: 0 0 0 0.15rem rgba(249, 115, 22, 0.2);
}
.tasks-date-label{
  font-weight: 700;
  color: var(--tasks-ink);
  margin-top: 6px;
}
.task-card{
  background: #ffffff;
  border: 1px solid var(--tasks-border);
  border-radius: 20px;
  padding: 18px 20px;
  box-shadow: var(--tasks-shadow);
}
.task-card-head{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.task-card-title{
  font-size: 18px;
  font-weight: 700;
  color: var(--tasks-ink);
}
.task-card-meta{
  font-size: 13px;
  color: var(--tasks-muted);
}
.task-card-body{
  margin-top: 10px;
  color: var(--tasks-ink);
}
.task-card-body p{
  margin: 0 0 12px 0;
}
.task-card-badge{
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.task-assign-badge{
  background: rgba(15, 118, 110, 0.12);
  color: #0f766e;
}
.task-dot{
  margin: 0 6px;
}
.task-overdue{
  color: #dc2626;
  font-weight: 600;
}
.task-attachments{
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.task-attachment-card{
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 16px;
  padding: 10px;
  display: grid;
  gap: 8px;
  background: #f8fafc;
}
.task-attachment-preview{
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: 12px;
  background: #e2e8f0;
}
.task-attachment-audio{
  width: 100%;
}
.task-attachment-info{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.task-attachment-name{
  font-weight: 600;
  font-size: 13px;
  color: var(--tasks-ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 150px;
}
.task-attachment-meta{
  font-size: 12px;
  color: var(--tasks-muted);
}
.task-attachment-actions{
  display: flex;
  justify-content: flex-end;
}
.tasks-empty{
  padding: 18px;
  border-radius: 14px;
  border: 1px dashed rgba(15, 23, 42, 0.2);
  color: var(--tasks-muted);
  text-align: center;
  background: #f8fafc;
}

.attendance-shell{
  --att-ink: #0f172a;
  --att-muted: #475569;
  --att-accent: #2563eb;
  --att-accent-strong: #1d4ed8;
  --att-border: rgba(15, 23, 42, 0.08);
  --att-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
  display: grid;
  gap: 24px;
}
.attendance-hero{
  padding: 32px;
  border-radius: 28px;
  border: 1px solid var(--att-border);
  background:
    radial-gradient(circle at 12% 20%, rgba(37, 99, 235, 0.18), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(14, 116, 144, 0.18), transparent 50%),
    linear-gradient(135deg, #eff6ff 0%, #f8fafc 45%, #ecfeff 100%);
}
.attendance-hero-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.attendance-kicker{
  display: inline-flex;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 700;
  color: var(--att-accent-strong);
}
.attendance-title{
  margin-top: 10px;
  margin-bottom: 8px;
  font-size: clamp(28px, 3.2vw, 42px);
  font-weight: 700;
  color: var(--att-ink);
}
.attendance-subtitle{
  margin: 0;
  font-size: 15px;
  color: var(--att-muted);
}
.attendance-hero-stat{
  min-width: 180px;
  padding: 16px 18px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid var(--att-border);
  box-shadow: var(--att-shadow);
}
.attendance-stat-label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--att-muted);
  font-weight: 700;
}
.attendance-stat-value{
  font-size: 24px;
  font-weight: 700;
  color: var(--att-ink);
}

/* Generic page hero */
.page-hero{
  --hero-ink: #0f172a;
  --hero-muted: #475569;
  --hero-accent: #2563eb;
  --hero-accent-strong: #1d4ed8;
  --hero-border: rgba(15, 23, 42, 0.08);
  --hero-shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
  padding: 28px;
  border-radius: 28px;
  border: 1px solid var(--hero-border);
  background:
    radial-gradient(circle at 12% 20%, rgba(37, 99, 235, 0.16), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(14, 116, 144, 0.16), transparent 50%),
    linear-gradient(135deg, #eff6ff 0%, #f8fafc 45%, #ecfeff 100%);
  box-shadow: var(--hero-shadow);
  overflow: hidden;
}
.page-hero.hero-teacher{
  --hero-accent: #2563eb;
  --hero-accent-strong: #1d4ed8;
}
.page-hero.hero-student{
  --hero-accent: #16a34a;
  --hero-accent-strong: #15803d;
  background:
    radial-gradient(circle at 12% 20%, rgba(22, 163, 74, 0.18), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(14, 116, 144, 0.16), transparent 50%),
    linear-gradient(135deg, #f0fdf4 0%, #f8fafc 45%, #ecfeff 100%);
}
.page-hero.hero-admin{
  --hero-accent: #0f766e;
  --hero-accent-strong: #0f766e;
  background:
    radial-gradient(circle at 12% 20%, rgba(15, 118, 110, 0.18), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(30, 64, 175, 0.12), transparent 50%),
    linear-gradient(135deg, #ecfeff 0%, #f8fafc 45%, #eef2ff 100%);
}
.page-hero.hero-ceo{
  --hero-accent: #d97706;
  --hero-accent-strong: #b45309;
  background:
    radial-gradient(circle at 12% 20%, rgba(217, 119, 6, 0.18), transparent 55%),
    radial-gradient(circle at 85% 10%, rgba(14, 116, 144, 0.12), transparent 50%),
    linear-gradient(135deg, #fff7ed 0%, #f8fafc 45%, #ecfeff 100%);
}
.page-hero-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.page-hero-kicker{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 700;
  color: var(--hero-accent-strong);
}
.page-hero-title{
  margin-top: 10px;
  margin-bottom: 8px;
  font-size: clamp(26px, 3.1vw, 40px);
  font-weight: 700;
  color: var(--hero-ink);
}
.page-hero-subtitle{
  margin: 0;
  font-size: 15px;
  color: var(--hero-muted);
}
.page-hero-actions{
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.page-hero-actions .btn{
  border-radius: 999px;
}
@media (max-width: 576px){
  .page-hero{
    padding: 22px;
  }
  .page-hero-actions{
    width: 100%;
  }
  .page-hero-actions .btn{
    flex: 1 1 140px;
  }
}
.attendance-grid{
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.attendance-card{
  background: #ffffff;
  border: 1px solid var(--att-border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--att-shadow);
  display: grid;
  gap: 16px;
}
.attendance-card-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.attendance-card-title{
  font-weight: 700;
  color: var(--att-ink);
}
.attendance-card-subtitle{
  font-size: 13px;
  color: var(--att-muted);
}
.attendance-badge{
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.12);
  color: var(--att-accent-strong);
  font-weight: 600;
  font-size: 12px;
}
.attendance-form-grid{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.attendance-group-alert{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(239, 68, 68, 0.12);
  color: #dc2626;
  font-size: 11px;
  font-weight: 600;
}
.attendance-group-alert::before{
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #dc2626;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18);
}
.attendance-schedule{
  padding: 12px;
  border-radius: 14px;
  background: #f8fafc;
  border: 1px dashed rgba(15, 23, 42, 0.12);
  display: grid;
  gap: 8px;
}
.attendance-schedule-title{
  font-weight: 700;
  font-size: 13px;
  color: var(--att-ink);
}
.attendance-day-row{
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.attendance-day-pill{
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  color: var(--att-muted);
  background: #ffffff;
}
.attendance-day-pill.is-active{
  background: rgba(37, 99, 235, 0.12);
  color: var(--att-accent-strong);
  border-color: rgba(37, 99, 235, 0.35);
}
.attendance-day-pill.is-today{
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}
.attendance-time{
  font-size: 13px;
  color: var(--att-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.attendance-summary{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.attendance-summary .label{
  font-size: 12px;
  color: var(--att-muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.attendance-summary .value{
  font-weight: 700;
  color: var(--att-ink);
  margin-left: 6px;
}
.attendance-callouts{
  display: grid;
  gap: 12px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: linear-gradient(140deg, rgba(248, 250, 252, 0.9), rgba(255, 255, 255, 0.95));
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.06);
}
.attendance-student-list{
  display: grid;
  gap: 10px;
  max-height: 420px;
  overflow: auto;
  padding: 6px;
  padding-right: 10px;
  border-radius: 18px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #ffffff;
}
.attendance-student-row{
  display: grid;
  grid-template-columns: 20px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
}
.attendance-student-info{
  display: grid;
  gap: 2px;
}
.attendance-student-name{
  font-weight: 600;
  color: var(--att-ink);
}
.attendance-student-meta{
  font-size: 12px;
  color: var(--att-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.attendance-student-group{
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: #ffffff;
  font-size: 11px;
  color: var(--att-muted);
}
.attendance-status{
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  color: var(--att-muted);
}
.attendance-status.is-present{
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: #059669;
}
.attendance-status.is-unmarked{
  background: rgba(148, 163, 184, 0.16);
  border-color: rgba(148, 163, 184, 0.35);
  color: #64748b;
}
.attendance-actions{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
}
.attendance-empty{
  padding: 16px;
  border-radius: 14px;
  border: 1px dashed rgba(15, 23, 42, 0.2);
  text-align: center;
  color: var(--att-muted);
  background: #f8fafc;
}
.attendance-warning{
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(245, 158, 11, 0.35);
  background: linear-gradient(135deg, rgba(254, 243, 199, 0.9), rgba(255, 255, 255, 0.95));
  color: #92400e;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 12px 22px rgba(245, 158, 11, 0.12);
}
.attendance-warning i{
  font-size: 16px;
}
.attendance-save-btn{
  padding: 10px 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  box-shadow: 0 12px 22px rgba(37, 99, 235, 0.25);
}
.attendance-filter-grid{
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.attendance-stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.attendance-stats .stat{
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
}
.attendance-stats .label{
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--att-muted);
  font-weight: 700;
}
.attendance-stats .value{
  font-size: 20px;
  font-weight: 700;
  color: var(--att-ink);
}
.attendance-report-table{
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 16px;
  overflow: hidden;
}
.attendance-report-toolbar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: linear-gradient(135deg, rgba(248, 250, 252, 0.9), rgba(255, 255, 255, 0.95));
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
}
.attendance-report-title{
  font-weight: 700;
  color: var(--att-ink);
}
.attendance-report-range{
  font-size: 12px;
  color: var(--att-muted);
}
.attendance-report-actions{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.attendance-report-table thead th{
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--att-muted);
  background: #f8fafc;
}
.attendance-report-table tbody tr{
  border-top: 1px solid rgba(15, 23, 42, 0.06);
}
.attendance-report-table tbody tr:hover{
  background: rgba(248, 250, 252, 0.7);
}
.attendance-report-status{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid rgba(15, 23, 42, 0.12);
  color: var(--att-muted);
  background: #ffffff;
}
.attendance-report-status.is-present{
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: #059669;
}
.attendance-report-status.is-absent{
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #dc2626;
}
.attendance-history{
  display: grid;
  gap: 10px;
}
.attendance-history-title{
  font-weight: 700;
  color: var(--att-ink);
}
.attendance-history-list{
  display: grid;
  gap: 8px;
}
.attendance-history-row{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: #f8fafc;
}
.attendance-history-main{
  font-weight: 600;
  color: var(--att-ink);
}
.attendance-history-sub{
  font-size: 12px;
  color: var(--att-muted);
}
.attendance-history-actions{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.vocab-shell{
  --vocab-ink: #0f172a;
  --vocab-muted: #475569;
  --vocab-accent: #0f766e;
  --vocab-accent-strong: #0d9488;
  --vocab-border: rgba(15, 23, 42, 0.08);
  --vocab-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  display: grid;
  gap: 24px;
}
.vocab-hero{
  position: relative;
  padding: 32px;
  border-radius: 28px;
  background:
    radial-gradient(circle at 18% 12%, rgba(13, 148, 136, 0.18), transparent 55%),
    radial-gradient(circle at 80% 18%, rgba(14, 116, 144, 0.18), transparent 58%),
    linear-gradient(135deg, #f8fafc 0%, #eef2ff 45%, #ecfeff 100%);
  border: 1px solid var(--vocab-border);
  overflow: hidden;
}
.vocab-hero::after{
  content: "";
  position: absolute;
  right: -140px;
  bottom: -160px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.2), transparent 60%);
  pointer-events: none;
}
.vocab-hero-inner{
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.vocab-hero-copy{
  max-width: 520px;
}
.vocab-kicker{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 12px;
  font-weight: 700;
  color: var(--vocab-accent);
}
.vocab-title{
  margin-top: 10px;
  margin-bottom: 8px;
  font-size: clamp(28px, 3.2vw, 42px);
  font-weight: 700;
  color: var(--vocab-ink);
}
.vocab-subtitle{
  margin: 0;
  font-size: 15px;
  color: var(--vocab-muted);
}
.vocab-search-card{
  background: #ffffff;
  border: 1px solid var(--vocab-border);
  border-radius: 20px;
  padding: 20px;
  min-width: 320px;
  box-shadow: var(--vocab-shadow);
}
.vocab-search-card .form-label{
  font-weight: 600;
  color: var(--vocab-ink);
}
.vocab-search-row{
  display: flex;
  align-items: stretch;
  gap: 12px;
  flex-wrap: wrap;
}
.vocab-search-row .form-control{
  flex: 1 1 240px;
}
.vocab-search-btn{
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(13, 148, 136, 0.2);
}
.vocab-search-meta{
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--vocab-muted);
}
.vocab-results{
  display: grid;
  gap: 18px;
}
.vocab-loading{
  display: none;
  background: #ffffff;
  border-radius: 18px;
  padding: 20px;
  border: 1px solid var(--vocab-border);
  box-shadow: var(--vocab-shadow);
  gap: 12px;
}
.vocab-skeleton{
  height: 16px;
  border-radius: 999px;
  background: linear-gradient(90deg, #eef2f7 0%, #f8fafc 45%, #eef2f7 100%);
  background-size: 180% 100%;
  animation: vocab-shimmer 1.4s ease-in-out infinite;
}
.vocab-skeleton.sm{ width: 45%; }
.vocab-skeleton.md{ width: 65%; }
.vocab-skeleton.lg{ width: 90%; height: 20px; }
.vocab-error{
  display: none;
  padding: 12px 16px;
  border-radius: 14px;
  background: #fff1f2;
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: #9f1239;
  font-weight: 600;
}
.vocab-result{
  display: grid;
  gap: 16px;
}
.vocab-result-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.vocab-result-title{
  font-size: 20px;
  font-weight: 700;
  color: var(--vocab-ink);
}
.vocab-result-meta{
  font-size: 13px;
  color: var(--vocab-muted);
}
.vocab-source-link{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(15, 118, 110, 0.2);
  color: var(--vocab-accent);
  font-weight: 600;
  font-size: 13px;
  text-decoration: none;
  background: rgba(13, 148, 136, 0.08);
}
.vocab-source-link:hover{
  background: rgba(13, 148, 136, 0.15);
  color: var(--vocab-accent);
}
.vocab-entry{
  background: #ffffff;
  border: 1px solid var(--vocab-border);
  border-radius: 18px;
  padding: 20px;
  color: var(--vocab-ink);
  box-shadow: var(--vocab-shadow);
  line-height: 1.6;
}
.vocab-entry .pagetitle{
  display: none;
}
.vocab-entry a{
  color: var(--vocab-accent);
  text-decoration: none;
  font-weight: 600;
}
.vocab-entry a:hover{
  text-decoration: underline;
}
.vocab-entry img{
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.15);
  margin: 12px 0;
}
.vocab-entry .dictentry{
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px dashed rgba(15, 23, 42, 0.15);
}
.vocab-entry .EXAMPLE{
  display: block;
  padding: 8px 12px;
  margin: 8px 0;
  border-radius: 10px;
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.06);
  font-size: 14px;
}
.vocab-entry .Sense{
  display: block;
  padding: 8px 0;
}
.vocab-entry .sensenum{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  margin-right: 6px;
  background: rgba(13, 148, 136, 0.12);
  color: var(--vocab-accent);
  font-weight: 700;
  font-size: 12px;
}
.vocab-entry .ColloBox{
  margin-top: 14px;
  padding: 12px;
  border-radius: 12px;
  background: #f8fafc;
  border: 1px solid rgba(15, 23, 42, 0.08);
}
.vocab-audio-btn{
  border: 1px solid rgba(13, 148, 136, 0.25);
  background: rgba(13, 148, 136, 0.12);
  color: var(--vocab-accent);
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 4px;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.vocab-audio-btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(13, 148, 136, 0.18);
}
.vocab-audio-btn.is-playing{
  background: var(--vocab-accent);
  color: #ffffff;
  border-color: var(--vocab-accent);
}
@keyframes vocab-shimmer{
  0%{ background-position: 200% 0; }
  100%{ background-position: -200% 0; }
}
@media (prefers-reduced-motion: reduce){
  .vocab-skeleton{
    animation: none;
  }
  .vocab-audio-btn{
    transition: none;
  }
}

@media (max-width: 992px){
  .module-dock{
    left: 12px;
    bottom: 110px;
    top: auto;
    transform: none;
  }
  .module-dock.right{
    left: auto;
    right: 12px;
  }
  .module-dock .dock-btn{
    width: 52px;
    height: 150px;
    font-size: 11px;
    border-radius: 18px;
  }
  .module-shell{
    grid-template-columns: 1fr;
  }
  .module-sidebar{
    position: static;
  }
  .module-nav{
    grid-template-columns: repeat(3, 1fr);
  }
  .attendance-hero-inner{
    flex-direction: column;
    align-items: flex-start;
  }
  .attendance-grid{
    grid-template-columns: 1fr;
  }
  .attendance-filter-grid{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .attendance-stats{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .tasks-hero-inner{
    flex-direction: column;
    align-items: flex-start;
  }
  .tasks-compose-grid{
    grid-template-columns: 1fr;
  }
  .tasks-student-wrap{
    max-height: none;
  }
  .vocab-hero-inner{
    flex-direction: column;
    align-items: stretch;
  }
  .vocab-search-card{
    width: 100%;
    min-width: 0;
  }
}
@media (max-width: 576px){
  .module-dock{
    left: 8px;
    bottom: 90px;
    gap: 8px;
  }
  .module-dock.right{
    left: auto;
    right: 8px;
  }
  .module-dock .dock-btn{
    width: 46px;
    height: 130px;
    font-size: 10px;
    letter-spacing: 0.12em;
  }
  .module-nav{
    grid-template-columns: 1fr;
  }
  .module-action-bar{
    flex-direction: column;
    align-items: stretch;
  }
  .module-action-right{
    justify-content: space-between;
  }
  .attendance-hero{
    padding: 24px;
  }
  .attendance-form-grid{
    grid-template-columns: 1fr;
  }
  .attendance-filter-grid{
    grid-template-columns: 1fr;
  }
  .attendance-stats{
    grid-template-columns: 1fr;
  }
  .attendance-report-toolbar{
    flex-direction: column;
    align-items: flex-start;
  }
  .tasks-hero{
    padding: 24px;
  }
  .tasks-form-grid{
    grid-template-columns: 1fr;
  }
  .task-attachment-preview{
    height: 120px;
  }
  .vocab-hero{
    padding: 24px;
  }
  .vocab-search-row{
    flex-direction: column;
  }
  .vocab-search-btn{
    width: 100%;
  }
}
@media (max-width: 576px){
  .chat-panel{
    width: calc(100vw - 16px);
    max-width: calc(100vw - 16px);
    height: 70vh;
    right: 8px;
  }
  .chat-body{
    grid-template-columns: 160px 1fr;
  }
}