*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
a:hover,button:hover{outline:none !important}
:root{
  --brand:       #1a6b5e;
  --brand-mid:   #15574c;
  --brand-deep:  #0e3d35;
  --brand-light: #e8f5f3;
  --brand-tint:  #f2faf9;
  --brand-glow:  rgba(26,107,94,.18);
  --ink:   #0d1f1c;
  --body:  #2d4742;
  --muted: #6b8f89;
  --pale:  #a3bfbb;
  --line:  #deecea;
  --red:       #c0392b;
  --red-light: #fdf3f2;
  --amber:     #d97706;
  --sidebar-bg:   #0e2620;
  --sidebar-text: rgba(255,255,255,.62);
  --sidebar-act:  rgba(255,255,255,.1);
  --sidebar-hov:  rgba(255,255,255,.07);
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --shadow-xs: 0 1px 4px rgba(0,0,0,.06);
  --shadow-sm: 0 3px 10px rgba(0,0,0,.09);
  --shadow-md: 0 8px 24px rgba(0,0,0,.11);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.15);
  --shadow-brand: 0 4px 16px rgba(26,107,94,.28);
  --font:  'Manrope', system-ui, sans-serif;
  --serif: 'Lora', Georgia, serif;
}
body{font-family:var(--font)}
.da-cabinet *,
.da-cabinet *::before,
.da-cabinet *::after {
  box-sizing: border-box !important;
  outline-color: var(--brand) !important;
}
.da-cabinet button,
.da-cabinet button:link,
.da-cabinet button:visited,
.da-cabinet button:hover,
.da-cabinet button:focus,
.da-cabinet button:active,
.da-cabinet input[type="button"],
.da-cabinet input[type="button"]:hover,
.da-cabinet input[type="submit"],
.da-cabinet input[type="submit"]:hover,
.da-cabinet input[type="reset"],
.da-cabinet input[type="reset"]:hover {
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;
  background-image: none !important;
  text-shadow: none !important;
  box-shadow: none !important;
}
.da-cabinet a:hover,
.da-cabinet a:focus {
  color: inherit !important;
  text-decoration: none !important;
  background-color: transparent !important;
}
.da-cabinet input,
.da-cabinet textarea,
.da-cabinet select {
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  appearance: none !important;
  background-image: none !important;
  box-shadow: none !important;
}
.da-cabinet input:focus,
.da-cabinet textarea:focus,
.da-cabinet select:focus {
  outline: none !important;
  box-shadow: none !important;
}
.da-auth-wrap{
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  padding:24px;
  background:#0b1e1a;
  background-image:
    radial-gradient(ellipse 70% 60% at 15% 20%, rgba(26,107,94,.3) 0%,transparent 70%),
    radial-gradient(ellipse 50% 70% at 85% 80%, rgba(14,61,53,.45) 0%,transparent 70%),
    radial-gradient(ellipse 30% 40% at 50% 50%, rgba(26,107,94,.08) 0%,transparent 60%);
}
.da-auth-card{
  background:#fff;border-radius:var(--radius-lg);
  padding:40px 36px;width:100%;max-width:440px;
  box-shadow:var(--shadow-lg);
  animation:daFadeUp .35s ease;
}
.da-auth-logo{display:flex;align-items:center;gap:12px;margin-bottom:28px;justify-content:center}
.da-auth-logo-icon{
  width:42px;height:42px;background:var(--brand);border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:14px;font-weight:600;color:#fff;letter-spacing:.5px;
}
.da-auth-logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.da-auth-title{
  font-family:var(--serif);font-size:25px;font-weight:600;
  color:var(--ink);margin-bottom:24px;text-align:center;letter-spacing:-.3px;
}
.da-form-group{margin-bottom:16px}
.da-form-row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.da-label{
  display:block;font-size:11px;font-weight:800;color:var(--muted);
  margin-bottom:6px;text-transform:uppercase;letter-spacing:.7px;
}
.da-input{
  width:100%;padding:11px 14px;
  border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-size:14px;font-family:var(--font);color:var(--ink);
  outline:none;background:#fff;
  transition:border-color .18s ease, box-shadow .18s ease !important;
}
.da-input:hover{border-color:var(--pale) !important}
.da-input:focus{border-color:var(--brand) !important;box-shadow:0 0 0 3px var(--brand-glow) !important}
.da-textarea{resize:vertical;min-height:80px}
.da-input-wrap{position:relative}
.da-input-wrap .da-input{padding-right:42px}
.da-eye{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  background:none;border:none;cursor:pointer;color:var(--pale);
  padding:0;display:flex;align-items:center;
  transition:color .18s !important;
}
.da-eye:hover{color:var(--brand) !important}
.da-eye svg{stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.da-btn-primary{
  width:100%;padding:13px;background:var(--brand);color:#fff;border:none;
  border-radius:var(--radius-sm);font-size:14px;font-weight:700;cursor:pointer;
  display:flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font);letter-spacing:.1px;
  transition:background .18s ease, box-shadow .18s ease, transform .12s ease !important;
}
.da-btn-primary:hover{background:var(--brand-mid) !important;box-shadow:var(--shadow-brand) !important}
.da-btn-primary:active{transform:translateY(1px) !important}
.da-auth-links{display:flex;justify-content:space-between;margin-top:18px}
.da-link{
  background:none;border:none;cursor:pointer;color:var(--brand);
  font-size:13px;font-weight:600;padding:0;text-decoration:none;
  transition:color .18s !important;font-family:var(--font);
}
.da-link:hover{color:var(--brand-mid) !important;text-decoration:underline !important}
.da-alert{
  padding:11px 14px;border-radius:var(--radius-sm);font-size:13px;
  font-weight:500;margin-bottom:14px;line-height:1.5;
}
.da-alert--error{background:var(--red-light);border:1px solid #f5c6c2;color:var(--red)}
.da-alert--success{background:var(--brand-tint);border:1px solid var(--line);color:var(--brand)}
.da-spinner{
  width:16px;height:16px;border:2px solid rgba(255,255,255,.35);
  border-top-color:#fff;border-radius:50%;animation:daSpin .7s linear infinite;flex-shrink:0;
}
.da-cabinet{min-height:100vh;display:flex;flex-direction:column;font-family:var(--font);background:#f4f7f6}
.da-header{
  position:sticky;top:0;z-index:200;height:58px;
  background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;box-shadow:var(--shadow-xs);
}
.da-header-left{display:flex;align-items:center;gap:10px}
.da-header-logo{
  font-family:var(--serif);font-size:17px;font-weight:600;
  color:var(--ink);letter-spacing:-.2px;
}
.da-header-right{display:flex;align-items:center;gap:14px}
.da-user-badge{display:flex;align-items:center;gap:10px}
.da-user-avatar{
  width:34px;height:34px;border-radius:50%;background:var(--brand);
  color:#fff;font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;letter-spacing:.5px;
  box-shadow:0 2px 8px rgba(26,107,94,.35);
}
.da-user-info{display:flex;flex-direction:column;line-height:1.3}
.da-user-name{font-size:13px;font-weight:700;color:var(--ink)}
.da-user-role{font-size:10.5px;color:var(--muted);font-weight:500}
.da-logout-btn{
  display:flex;align-items:center;gap:6px;
  padding:7px 13px;background:transparent;
  border:1.5px solid var(--line);border-radius:var(--radius-sm);
  font-size:12.5px;font-weight:600;cursor:pointer;color:var(--muted);
  font-family:var(--font);
  transition:border-color .18s ease, color .18s ease, background .18s ease !important;
}
.da-logout-btn:hover{border-color:var(--red) !important;color:var(--red) !important;background:var(--red-light) !important}
.da-logout-btn svg{stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.da-menu-toggle{
  display:none;width:36px;height:36px;
  background:none;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0;
  transition:border-color .18s ease, background .18s ease !important;
}
.da-menu-toggle span{display:block;width:16px;height:1.5px;background:var(--body);transition:all .25s ease;border-radius:2px}
.da-menu-toggle:hover{border-color:var(--brand) !important;background:var(--brand-tint) !important}
.da-menu-toggle.active span:nth-child(1){transform:rotate(45deg) translate(4px,4px)}
.da-menu-toggle.active span:nth-child(2){opacity:0;transform:translateX(-8px)}
.da-menu-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(4px,-4px)}
.da-body{display:flex;flex:1;overflow:hidden;height:calc(100vh - 58px)}
.da-sidebar{
  width:224px;flex-shrink:0;
  background:var(--sidebar-bg);
  overflow-y:auto;padding:18px 0 32px;
  display:flex;flex-direction:column;
  color:#fff !important;
}
.da-sidebar *{color:inherit !important;}
.da-sidebar::-webkit-scrollbar{width:3px}
.da-sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.1);border-radius:2px}
.da-sb-section{padding:0 10px;margin-bottom:4px}
.da-sb-label{
  font-size:9.5px !important;font-weight:800 !important;
  color:rgba(255,255,255,.35) !important;
  text-transform:uppercase !important;letter-spacing:1.3px !important;
  padding:10px 8px 5px !important;display:block !important;
}
.da-sb-class-link{
  display:flex !important;align-items:center !important;gap:8px !important;
  padding:9px 10px !important;margin:1px 0 !important;
  border-radius:var(--radius-sm) !important;font-size:13px !important;font-weight:600 !important;
  color:rgba(255,255,255,.72) !important;text-decoration:none !important;
  transition:background .15s, color .15s !important;
}
.da-sb-class-link:hover{background:var(--sidebar-hov) !important;color:#fff !important}
.da-sb-class-link.active{background:rgba(255,255,255,.12) !important;color:#fff !important}
.da-nav-item{
  display:flex !important;align-items:center !important;gap:10px !important;
  padding:9px 10px !important;margin:2px 0 !important;
  border-radius:var(--radius-sm) !important;font-size:13px !important;font-weight:500 !important;
  color:rgba(255,255,255,.72) !important;text-decoration:none !important;
  transition:background .15s, color .15s !important;
  position:relative !important;
}
.da-nav-item:hover{background:var(--sidebar-hov) !important;color:#fff !important}
.da-nav-item.active{
  background:var(--brand) !important;color:#fff !important;
  font-weight:700 !important;box-shadow:var(--shadow-brand) !important;
}
.da-nav-item.active::after{
  content:'';position:absolute;right:10px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:#4ecdc4;
  animation:daPulse 2.2s infinite;
}
.da-nav-icon{
  width:20px;height:20px;display:flex;align-items:center;justify-content:center;
  flex-shrink:0;opacity:.65;transition:opacity .15s !important;
}
.da-nav-item:hover .da-nav-icon,.da-nav-item.active .da-nav-icon{opacity:1 !important}
.da-nav-icon svg{
  width:15px;height:15px;stroke:currentColor;fill:none;
  stroke-width:1.85;stroke-linecap:round;stroke-linejoin:round;
}
.da-sidebar-divider{height:1px;background:rgba(255,255,255,.07);margin:10px 18px}
.da-main{flex:1;overflow-y:auto;padding:28px 30px}
.da-main::-webkit-scrollbar{width:5px}
.da-main::-webkit-scrollbar-thumb{background:#d5e8e5;border-radius:3px}
.da-panel{
  background:#fff;border-radius:var(--radius-lg);
  padding:26px;border:1px solid var(--line);
  box-shadow:var(--shadow-xs);margin-bottom:20px;
  animation:daFadeUp .28s ease;
}
.da-panel-title{
  font-family:var(--serif);font-size:19px;font-weight:600;
  color:var(--ink);margin-bottom:20px;letter-spacing:-.2px;
}
.da-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.da-panel-header .da-panel-title{margin-bottom:0}
.da-section-sub{
  font-size:11.5px;font-weight:800;color:var(--muted);
  text-transform:uppercase;letter-spacing:.6px;
  margin:22px 0 14px;padding-top:20px;
  border-top:1px solid var(--brand-tint);
}
.da-avg-hero{
  display:flex;align-items:center;gap:20px;
  background:linear-gradient(135deg, #0a2420 0%, var(--brand-deep) 60%, #133028 100%);
  border-radius:var(--radius-lg);padding:20px 24px;margin-bottom:24px;
  position:relative;overflow:hidden;
}
.da-avg-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 80% 80% at 80% 50%, rgba(78,205,196,.12) 0%,transparent 70%);
  pointer-events:none;
}
.da-avg-ring{
  width:78px;height:78px;border-radius:50%;flex-shrink:0;
  background:conic-gradient(#4ecdc4 calc(var(--pct)*1%), rgba(255,255,255,.08) 0);
  display:flex;align-items:center;justify-content:center;position:relative;
  filter:drop-shadow(0 0 14px rgba(78,205,196,.3));
}
.da-avg-ring::before{
  content:'';position:absolute;inset:7px;border-radius:50%;
  background:#0a2420;
}
.da-avg-num{position:relative;z-index:1;font-size:21px;font-weight:800;color:#4ecdc4}
.da-avg-title{font-size:16px;font-weight:700;color:#fff;margin-bottom:3px}
.da-avg-sub{font-size:12px;color:rgba(255,255,255,.42)}
.da-schedule-wrap{overflow-x:auto;margin:-2px}
.da-schedule-view{border-collapse:collapse;min-width:580px;width:100%;font-size:12.5px}
.da-schedule-view th{
  background:var(--brand-tint);color:var(--brand);padding:10px 8px;
  text-align:center;font-size:10.5px;font-weight:800;
  text-transform:uppercase;letter-spacing:.5px;border:1px solid var(--line);
}
.da-schedule-view td{border:1px solid var(--line);padding:6px;vertical-align:top}
.da-period-cell{text-align:center;font-weight:700;color:var(--pale);background:var(--brand-tint);width:34px;font-size:12px}
.da-sch-entry{
  background:var(--brand-tint);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:5px 8px;margin-bottom:4px;display:flex;flex-wrap:wrap;align-items:center;gap:4px;
  transition:background .15s ease !important;
}
.da-sch-entry:hover{background:#ddf5f0 !important}
.da-sch-subj{font-weight:700;color:var(--brand);font-size:12px}
.da-sch-meta{font-size:10px;background:var(--brand);color:#fff;border-radius:3px;padding:1px 5px;font-weight:700}
.da-hw-list,.da-grades-list{display:flex;flex-direction:column;gap:10px}
@keyframes daSkeleton{
  0%{background-position:200% 0}
  100%{background-position:-200% 0}
}
.da-sk{
  background:linear-gradient(90deg,var(--line) 25%,#e8efee 50%,var(--line) 75%);
  background-size:200% 100%;
  animation:daSkeleton 1.4s ease infinite;
  border-radius:5px;
  display:block;
}
.da-dark .da-sk{
  background:linear-gradient(90deg,#2d3748 25%,#374151 50%,#2d3748 75%)!important;
  background-size:200% 100%!important;
}
.da-card-skeleton{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;
}
.da-dark .da-card-skeleton{background:#1f2937!important;border-color:#374151!important}
.da-grade-skeleton{
  display:flex;align-items:center;gap:14px;
  padding:10px 0;border-bottom:1px solid var(--line);
}
.da-row-skeleton{
  display:flex;align-items:center;gap:12px;
  padding:12px 18px;border-bottom:1px solid var(--line);
}
.da-mat-skeleton{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:14px 16px;
}
.da-dark .da-mat-skeleton{background:#1f2937!important;border-color:#374151!important}
.da-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;
  transition:box-shadow .2s ease, border-color .2s ease, transform .15s ease !important;
}
.da-card:hover{box-shadow:var(--shadow-sm) !important;border-color:#c5deda !important;transform:translateY(-1px) !important}
.da-card--hw .da-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:9px}
.da-card-subject{font-size:10.5px;font-weight:800;color:var(--brand);text-transform:uppercase;letter-spacing:.6px}
.da-card-date{
  font-size:11.5px;font-weight:600;color:var(--muted);
  background:var(--brand-tint);padding:3px 10px;border-radius:100px;border:1px solid var(--line);
}
.da-card-topic{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.4}
.da-card-desc{font-size:13px;color:var(--body);line-height:1.65;margin-bottom:10px}
.da-card-footer{
  display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--pale);
  border-top:1px solid var(--brand-tint);padding-top:10px;margin-top:10px;
}
.da-card--overdue{border-left:3px solid var(--red)}
.da-hw-actions{display:flex;align-items:center;gap:5px;flex-shrink:0}
.da-icon-btn{
  width:32px !important;
  height:32px !important;
  display:inline-flex !important;
  align-items:center !important;
  justify-content:center !important;
  border:1.5px solid var(--line) !important;
  border-radius:6px !important;
  background:#fff !important;
  background-color:#fff !important;
  background-image:none !important;
  cursor:pointer !important;
  color:var(--muted) !important;
  flex-shrink:0 !important;
  padding:0 !important;
  margin:0 !important;
  box-shadow:none !important;
  text-decoration:none !important;
  -webkit-appearance:none !important;
  appearance:none !important;
  transition:border-color .16s, color .16s, background-color .16s !important;
}
.da-icon-btn:hover{
  border-color:var(--brand) !important;
  color:var(--brand) !important;
  background-color:var(--brand-tint) !important;
  background-image:none !important;
}
.da-icon-btn--red{
  border-color:#fecaca !important;
  color:var(--red) !important;
  background-color:#fff !important;
}
.da-icon-btn--red:hover{
  border-color:var(--red) !important;
  color:var(--red) !important;
  background-color:var(--red-light) !important;
  background-image:none !important;
}
.da-icon-btn svg{
  width:14px !important;height:14px !important;
  stroke:currentColor !important;fill:none !important;
  stroke-width:2 !important;stroke-linecap:round !important;stroke-linejoin:round !important;
  display:block !important;
}
.da-card--grade{display:flex;align-items:flex-start;gap:14px}
.da-grade-badge{
  min-width:46px;height:46px;border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;color:#fff;flex-shrink:0;
  transition:transform .15s ease !important;
}
.da-card--grade:hover .da-grade-badge{transform:scale(1.06) rotate(-2deg) !important}
.da-grade-info{flex:1}
.da-refresh-btn{
  width:34px;height:34px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  background:#fff !important;cursor:pointer;display:flex;align-items:center;justify-content:center;
  color:var(--brand);outline:none;
  transition:background .18s ease, border-color .18s ease !important;
}
.da-refresh-btn:hover{background:rgba(26,107,94,.13) !important;border-color:var(--brand) !important}
.da-refresh-btn:focus{outline:none}
.da-refresh-btn:active{background:rgba(26,107,94,.22) !important;border-color:var(--brand) !important}
.da-refresh-icon{display:inline-flex;transition:transform .5s ease}
.da-refresh-icon svg{stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.da-refresh-btn.loading .da-refresh-icon{animation:daSpin .7s linear infinite}
.da-summary-table-wrap{overflow-x:auto}
.da-summary-table{width:100%;border-collapse:collapse;font-size:13.5px}
.da-summary-table th{
  background:var(--brand-tint);color:var(--brand);padding:12px 18px;text-align:left;
  font-size:10.5px;font-weight:800;text-transform:uppercase;letter-spacing:.6px;
  border-bottom:2px solid var(--line);
}
.da-summary-table td{padding:13px 18px;border-bottom:1px solid var(--brand-tint);color:var(--body)}
.da-summary-table tr:last-child td{border-bottom:none}
.da-summary-table tr{transition:background .15s ease !important}
.da-summary-table tr:hover td{background:var(--brand-tint) !important}
.da-avg-pill{
  display:inline-block;padding:3px 12px;background:var(--brand-tint);
  border:1px solid var(--line);border-radius:100px;
  font-size:13px;font-weight:800;color:var(--brand);
}
.da-final-badge{
  display:inline-flex;width:34px;height:34px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:14px;font-weight:800;
  align-items:center;justify-content:center;
}
.da-filter-bar{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}
.da-filter-chip{
  padding:6px 15px;border:1.5px solid var(--line);border-radius:100px;
  font-size:12.5px;font-weight:600;color:var(--muted);
  text-decoration:none;cursor:pointer;background:#fff;
  transition:all .16s ease !important;
}
.da-filter-chip:hover{border-color:var(--brand) !important;background:var(--brand-tint) !important;color:var(--brand) !important}
.da-filter-chip.active{border-color:var(--brand) !important;background:var(--brand-tint) !important;color:var(--brand) !important}
.da-subject-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;background:var(--brand-tint);
  border:1.5px solid var(--line);border-radius:100px;
  font-size:13px;font-weight:700;color:var(--brand);margin-bottom:18px;
}
.da-subject-badge::before{
  content:'';display:block;width:7px;height:7px;border-radius:50%;
  background:var(--brand);animation:daPulse 2.2s infinite;
}
.da-cabinet button,
.da-cabinet button:hover,
.da-cabinet button:focus,
.da-cabinet button:active,
.da-cabinet input[type="button"],
.da-cabinet input[type="submit"]{
  -webkit-appearance:none !important;
  appearance:none !important;
  background-image:none !important;
}
.da-gc-btn-edit:hover{
  background-color:#1a6b5e !important;
  border-color:#1a6b5e !important;
  color:#fff !important;
}
.da-gc-btn-del:hover{
  background-color:#c0392b !important;
  border-color:#c0392b !important;
  color:#fff !important;
}
.da-gc:hover{
  border-color:#c5deda !important;
  box-shadow:0 2px 8px rgba(0,0,0,.07) !important;
}
.da-gc-btn svg,
.da-gc-btn-edit svg,
.da-gc-btn-del svg{
  pointer-events:none !important;
  display:block !important;
  stroke:currentColor !important;
  fill:none !important;
}
.da-sgrade-block:last-child{margin-bottom:0}
.da-avg-pill{
  display:inline-block;
  padding:3px 12px;
  background:var(--brand-tint);
  border:1px solid var(--line);
  border-radius:100px;
  font-size:13px;font-weight:800;
  color:var(--brand);
}
.da-student-avg{min-width:56px}
.da-gitem{
  display:flex !important;
  align-items:center !important;
  gap:4px !important;
  background:transparent !important;
}
.da-gitem-num{
  min-width:36px !important;
  height:36px !important;
  display:flex !important;
  align-items:center !important;
  justify-content:center !important;
  border-radius:8px !important;
  font-size:15px !important;
  font-weight:800 !important;
  color:#fff !important;
  padding:0 8px !important;
  box-shadow:0 2px 6px rgba(0,0,0,.2) !important;
  line-height:1 !important;
  background-image:none !important;
}
.da-gitem-edit,
.da-gitem-del{
  width:28px !important;
  height:28px !important;
  display:flex !important;
  align-items:center !important;
  justify-content:center !important;
  border-radius:6px !important;
  cursor:pointer !important;
  transition:background-color .16s,border-color .16s,color .16s !important;
  flex-shrink:0 !important;
  background:none !important;
  background-color:#f2faf9 !important;
  background-image:none !important;
  border:1.5px solid #deecea !important;
  color:#6b8f89 !important;
  box-shadow:none !important;
  text-decoration:none !important;
  padding:0 !important;
  margin:0 !important;
  outline:none !important;
  -webkit-appearance:none !important;
  appearance:none !important;
}
.da-gitem-edit:hover{
  background-color:#1a6b5e !important;
  background-image:none !important;
  border-color:#1a6b5e !important;
  color:#fff !important;
}
.da-gitem-del{
  background-color:#fff7f7 !important;
  border-color:#fecaca !important;
  color:#c0392b !important;
}
.da-gitem-del:hover{
  background-color:#c0392b !important;
  background-image:none !important;
  border-color:#c0392b !important;
  color:#fff !important;
}
.da-gitem-edit svg,
.da-gitem-del svg{
  display:block !important;
  stroke:currentColor !important;
  fill:none !important;
  stroke-linecap:round !important;
  stroke-linejoin:round !important;
  pointer-events:none !important;
}
.da-materials-list{display:flex;flex-direction:column;gap:8px}
.da-material-card{
  display:flex;align-items:center;gap:14px;padding:14px 18px;
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  transition:box-shadow .2s ease, border-color .2s ease, transform .15s ease !important;
}
.da-material-card:hover{box-shadow:var(--shadow-sm) !important;border-color:#c5deda !important;transform:translateY(-1px) !important}
.da-material-icon{
  width:42px;height:42px;flex-shrink:0;background:var(--brand-tint);
  border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--brand);
  transition:background .18s ease !important;
}
.da-material-card:hover .da-material-icon{background:var(--brand-light) !important}
.da-material-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.da-material-info{flex:1;min-width:0}
.da-material-title{font-size:14px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.da-material-meta{display:flex;gap:10px;font-size:12px;color:var(--muted);margin-top:3px;flex-wrap:wrap}
.da-material-subject{color:var(--brand);font-weight:700}
.da-download-btn{
  padding:7px 16px;background:var(--brand-tint);border:1.5px solid var(--line);
  border-radius:var(--radius-sm);color:var(--brand);
  font-size:12px;font-weight:700;text-decoration:none;flex-shrink:0;
  font-family:var(--font);
  transition:background .18s ease, color .18s ease, border-color .18s ease !important;
}
.da-download-btn:hover{background:var(--brand) !important;color:#fff !important;border-color:var(--brand) !important}
.da-delete-mat{flex-shrink:0}
.da-add-form{
  background:var(--brand-tint);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;margin-bottom:22px;
}
.da-form-title{font-size:11.5px;font-weight:800;color:var(--brand);text-transform:uppercase;letter-spacing:.6px;margin-bottom:16px}
.da-file-label{
  display:flex;align-items:center;gap:8px;padding:10px 14px;
  border:1.5px dashed var(--pale);border-radius:var(--radius-sm);
  cursor:pointer;font-size:13px;color:var(--muted);
  transition:border-color .18s ease, color .18s ease, background .18s ease !important;
}
.da-file-label:hover{border-color:var(--brand) !important;color:var(--brand) !important;background:#fff !important}
.da-btn{
  display:inline-flex;align-items:center;gap:5px;padding:8px 16px;
  border-radius:var(--radius-sm);border:1.5px solid var(--line);
  font-size:13px;font-weight:600;cursor:pointer;background:#fff;color:var(--body);
  font-family:var(--font);white-space:nowrap;text-decoration:none;
  transition:border-color .16s ease, color .16s ease, background .16s ease, transform .12s ease !important;
}
.da-btn:hover{border-color:var(--brand) !important;color:var(--brand) !important;background:var(--brand-tint) !important}
.da-btn:active{transform:translateY(1px) !important}
.da-btn--teal{background:var(--brand) !important;color:#fff !important;border-color:var(--brand) !important}
.da-btn--teal:hover{background:var(--brand-mid) !important;border-color:var(--brand-mid) !important;color:#fff !important;box-shadow:var(--shadow-brand) !important}
.da-btn--red{background:var(--red) !important;color:#fff !important;border-color:var(--red) !important}
.da-btn--red:hover{background:#a93226 !important;border-color:#a93226 !important;color:#fff !important}
.da-btn--sm{padding:6px 12px;font-size:12px}
.da-btn--xs{padding:3px 8px;font-size:11px}
.da-modal{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center}
.da-modal-overlay{
  position:absolute;inset:0;
  background:rgba(8,22,20,.55);backdrop-filter:blur(4px);
}
.da-modal-inner{
  position:relative;z-index:1;background:#fff;
  border-radius:var(--radius-lg);padding:30px;
  width:100%;max-width:420px;
  box-shadow:var(--shadow-lg);
  animation:daFadeUp .22s ease;
}
.da-modal-inner h3{
  font-family:var(--serif);font-size:19px;font-weight:600;
  color:var(--ink);margin-bottom:20px;
}
.da-modal-actions{display:flex;gap:8px;margin-top:20px}
.da-modal-actions .da-btn-primary{width:auto;flex:1}
.da-empty{color:var(--pale);font-size:13px;font-style:italic;padding:20px 0;text-align:center}
.da-empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  height:100%;gap:14px;color:var(--muted);text-align:center;padding:48px;
}
.da-empty-state-icon{
  width:56px;height:56px;background:var(--brand-tint);border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.da-empty-state-icon svg{width:26px;height:26px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.da-empty-state p{font-size:14.5px;max-width:300px;line-height:1.65;color:var(--muted)}
@keyframes daFadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
@keyframes daFadeIn{from{opacity:0}to{opacity:1}}
@keyframes daSpin{to{transform:rotate(360deg)}}
@keyframes daPulse{0%,100%{transform:translateY(-50%) scale(1);opacity:1}50%{transform:translateY(-50%) scale(1.4);opacity:.6}}
.da-card:nth-child(1){animation:daFadeUp .25s ease .02s both}
.da-card:nth-child(2){animation:daFadeUp .25s ease .05s both}
.da-card:nth-child(3){animation:daFadeUp .25s ease .08s both}
.da-card:nth-child(4){animation:daFadeUp .25s ease .11s both}
.da-card:nth-child(5){animation:daFadeUp .25s ease .14s both}
.da-card:nth-child(n+6){animation:daFadeUp .25s ease .17s both}
.da-material-card:nth-child(1){animation:daFadeUp .25s ease .03s both}
.da-material-card:nth-child(2){animation:daFadeUp .25s ease .07s both}
.da-material-card:nth-child(3){animation:daFadeUp .25s ease .11s both}
.da-material-card:nth-child(n+4){animation:daFadeUp .25s ease .15s both}
@media(max-width:768px){
  .da-menu-toggle{display:flex !important}
  .da-logout-label{display:none}
  .da-logout-btn{padding:7px 10px}
  .da-user-info{display:none}
  .da-body{flex-direction:column;height:auto}
  .da-sidebar{
    position:fixed;top:58px;left:0;bottom:0;
    width:240px;z-index:150;
    transform:translateX(-100%);
    transition:transform .25s ease, box-shadow .25s ease !important;
  }
  .da-sidebar.da-sidebar--open{
    transform:translateX(0) !important;
    box-shadow:6px 0 30px rgba(0,0,0,.3) !important;
  }
  .da-main{padding:14px;min-height:60vh}
  .da-panel{padding:16px}
  .da-form-row2{grid-template-columns:1fr}
  .da-student-grade-row{flex-direction:column;align-items:flex-start;gap:10px}
  .da-student-name{min-width:unset;width:100%}
  .da-student-grades-list{width:100%}
  .da-header{padding:0 14px}
  .da-avg-hero{padding:14px 16px;gap:14px}
  .da-panel-title{font-size:17px}
  .da-modal-inner{padding:22px;margin:0 12px}
}
@media(max-width:420px){
  .da-auth-card{padding:24px 16px}
  .da-form-row2{grid-template-columns:1fr}
}
.da-auth-wrap *{
  -webkit-tap-highlight-color:transparent !important;
}
.da-auth-wrap{
  background:#0b1e1a !important;
  background-image:
    radial-gradient(ellipse 70% 60% at 15% 20%, rgba(26,107,94,.3) 0%,transparent 70%),
    radial-gradient(ellipse 50% 70% at 85% 80%, rgba(14,61,53,.45) 0%,transparent 70%) !important;
}
.da-auth-card{
  background:#fff !important;
  border-radius:var(--radius-lg) !important;
}
.da-auth-card:hover{
  box-shadow:0 28px 80px rgba(0,0,0,.22),0 0 0 1px rgba(26,107,94,.1) !important;
}
.da-auth-logo-icon{
  background:#1a6b5e !important;
  color:#fff !important;
}
.da-auth-logo-icon:hover{
  transform:scale(1.08) rotate(-2deg) !important;
  box-shadow:0 4px 16px rgba(26,107,94,.4) !important;
}
.da-auth-logo-text{
  color:#0d1f1c !important;
}
.da-auth-title{
  color:#0d1f1c !important;
}
.da-label{
  color:#6b8f89 !important;
}
.da-form-group:focus-within .da-label{
  color:#1a6b5e !important;
}
.da-auth-wrap .da-input{
  background:#fff !important;
  border:1.5px solid #deecea !important;
  color:#0d1f1c !important;
  box-shadow:none !important;
}
.da-auth-wrap .da-input:hover{
  border-color:#a3bfbb !important;
  background:#fafffe !important;
  box-shadow:none !important;
}
.da-auth-wrap .da-input:focus{
  border-color:#1a6b5e !important;
  box-shadow:0 0 0 3px rgba(26,107,94,.15) !important;
  background:#fff !important;
  outline:none !important;
}
.da-auth-wrap .da-input::placeholder{
  color:#a3bfbb !important;
}
.da-auth-wrap .da-eye{
  background:none !important;
  border:none !important;
  color:#a3bfbb !important;
  box-shadow:none !important;
}
.da-auth-wrap .da-eye:hover{
  color:#1a6b5e !important;
  background:none !important;
  transform:translateY(-50%) scale(1.15) !important;
}
.da-auth-wrap .da-btn-primary{
  background:#1a6b5e !important;
  background-image:none !important;
  color:#fff !important;
  border:none !important;
  box-shadow:none !important;
  -webkit-appearance:none !important;
  appearance:none !important;
}
.da-auth-wrap .da-btn-primary:hover{
  background:#15574c !important;
  background-image:none !important;
  color:#fff !important;
  box-shadow:0 6px 22px rgba(26,107,94,.38) !important;
  transform:translateY(-1px) !important;
}
.da-auth-wrap .da-btn-primary:active{
  transform:translateY(1px) !important;
  box-shadow:none !important;
}
.da-auth-wrap .da-btn-primary:disabled{
  opacity:.7 !important;
  cursor:not-allowed !important;
  transform:none !important;
}
.da-auth-wrap .da-link{
  background:none !important;
  background-image:none !important;
  border:none !important;
  color:#1a6b5e !important;
  box-shadow:none !important;
  -webkit-appearance:none !important;
  appearance:none !important;
}
.da-auth-wrap .da-link:hover{
  color:#0e3d35 !important;
  background:none !important;
  transform:translateY(-1px) !important;
  text-decoration:underline !important;
}
.da-back-btn{
  color:rgba(255,255,255,.65) !important;
  background:rgba(255,255,255,.06) !important;
  border:1.5px solid rgba(255,255,255,.14) !important;
  text-decoration:none !important;
}
.da-back-btn:hover{
  background:rgba(255,255,255,.14) !important;
  color:#fff !important;
  border-color:rgba(255,255,255,.3) !important;
  text-decoration:none !important;
}
.da-back-btn svg{stroke:currentColor !important;fill:none !important}
.da-auth-divider{
  color:#a3bfbb !important;
}
.da-auth-divider::before,
.da-auth-divider::after{
  background:#e5eeed !important;
}
.da-step-dot{background:#e5eeed !important}
.da-step-dot.active{background:#1a6b5e !important;transform:scale(1.25) !important}
.da-alert--error{
  background:#fdf3f2 !important;
  border-color:#f5c6c2 !important;
  color:#c0392b !important;
}
.da-alert--success{
  background:#f2faf9 !important;
  border-color:#deecea !important;
  color:#1a6b5e !important;
}
.da-auth-wrap .da-spinner{
  border-color:rgba(255,255,255,.3) !important;
  border-top-color:#fff !important;
}
.da-btn-primary{position:relative !important;overflow:hidden !important}
@keyframes daPulseRed{
  0%,100%{box-shadow:0 0 0 0 rgba(192,57,43,.5)}
  50%{box-shadow:0 0 0 4px rgba(192,57,43,0)}
}
@media(max-width:600px){
  .da-card{ padding:14px 14px !important; }
  .da-card--hw .da-card-head{
    flex-direction:column !important;
    align-items:flex-start !important;
    gap:8px !important;
  }
  .da-card--hw .da-card-head > div:first-child{
    display:flex !important;
    flex-wrap:wrap !important;
    gap:6px !important;
    align-items:center !important;
    width:100% !important;
  }
  .da-hw-actions{
    width:100% !important;
    justify-content:flex-end !important;
    gap:6px !important;
  }
  .da-card-subject{ font-size:10px !important; }
  .da-card-date{ font-size:11px !important; padding:3px 8px !important; }
  .da-card-topic{ font-size:14.5px !important; }
  .da-card-desc{ font-size:12.5px !important; margin-bottom:8px !important; }
  .da-card-footer{
    font-size:11px !important;
    flex-direction:column !important;
    align-items:flex-start !important;
    gap:3px !important;
  }
  .da-main{ padding:12px 12px !important; }
  .da-hw-list,.da-grades-list{ gap:8px !important; }
}
.da-chat-wrap{
  display:none; 
  overflow:hidden;
  background:var(--brand-tint);
  flex:1;
  min-height:0;
}
.da-chat-sidebar{
  width:300px;flex-shrink:0;
  background:var(--sidebar-bg);
  display:flex;flex-direction:column;
  height:100%;
  border-right:none;
}
.da-chat-sidebar-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 18px 14px;
}
.da-chat-sidebar-title{
  font-size:16px;font-weight:800;color:#fff;
  letter-spacing:-.2px;
}
.da-chat-back-btn{
  display:flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:6px;
  color:rgba(255,255,255,.5);text-decoration:none;
  transition:background .15s,color .15s;
}
.da-chat-back-btn:hover{ background:rgba(255,255,255,.08); color:#fff; }
.da-chat-back-btn svg{ stroke:currentColor;fill:none; }
.da-chat-search-wrap{
  display:flex;align-items:center;gap:8px;
  margin:0 12px 12px;
  background:rgba(255,255,255,.1);
  border-radius:var(--radius-sm);
  padding:8px 12px;
}
.da-chat-search-wrap svg{ stroke:rgba(255,255,255,.5);flex-shrink:0; }
.da-chat-search-input{
  flex:1;border:none;outline:none;
  background:transparent;
  color:#fff;font-size:13px;font-family:inherit;
}
.da-chat-search-input::placeholder{ color:rgba(255,255,255,.4); }
.da-chat-search-results{
  margin:0 12px;
  background:#fff;
  border-radius:var(--radius-sm);
  overflow:hidden;
  box-shadow:0 4px 16px rgba(0,0,0,.2);
  display:none;
}
.da-chat-search-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;cursor:pointer;
  transition:background .15s;
}
.da-chat-search-item:hover{ background:var(--brand-tint); }
.da-chat-search-avatar{
  width:34px;height:34px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;flex-shrink:0;
}
.da-chat-search-name{ font-size:13px;font-weight:600;color:var(--ink); }
.da-chat-search-email{ font-size:11px;color:var(--pale); }
.da-chat-list{
  flex:1;overflow-y:auto;padding:4px 0;
}
.da-chat-list::-webkit-scrollbar{ width:3px; }
.da-chat-list::-webkit-scrollbar-thumb{ background:rgba(255,255,255,.1); }
.da-chat-item{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;cursor:pointer;
  transition:background .15s;position:relative;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.da-chat-item:hover{ background:rgba(255,255,255,.07); }
.da-chat-item.active{ background:rgba(255,255,255,.12); }
.da-chat-item-avatar{
  width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,.15);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;flex-shrink:0;
}
.da-chat-item-info{ flex:1;min-width:0; }
.da-chat-item-name{
  font-size:13px;font-weight:700;color:#fff;margin-bottom:2px;
}
.da-chat-item-preview{
  font-size:11.5px;color:rgba(255,255,255,.5);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.da-chat-item-meta{
  display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0;
}
.da-chat-item-time{ font-size:10px;color:rgba(255,255,255,.35); }
.da-chat-item-badge{
  min-width:18px;height:18px;padding:0 4px;
  background:#c0392b;color:#fff;border-radius:100px;
  font-size:10px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.da-chat-list-loading,.da-chat-list-empty{
  padding:30px 20px;text-align:center;
  font-size:13px;color:rgba(255,255,255,.4);
  line-height:1.6;
}
.da-chat-main{
  flex:1;display:flex;flex-direction:column;
  height:100%;overflow:hidden;
  background:#f5f7f6;
}
.da-chat-empty-state{
  flex:1;display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  gap:16px;color:var(--pale);
}
.da-chat-empty-state svg{ opacity:.3; }
.da-chat-empty-state p{ font-size:14px; }
.da-chat-window{ display:flex;flex-direction:column;height:100%; }
.da-chat-topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 18px;background:#fff;
  border-bottom:1px solid var(--line);
  flex-shrink:0;
  box-shadow:0 1px 4px rgba(0,0,0,.04);
}
.da-chat-topbar-left{ display:flex;align-items:center;gap:10px; }
.da-chat-back-mobile{
  display:none;width:32px;height:32px;cursor:pointer;
  align-items:center;justify-content:center;
  color:var(--muted);border-radius:6px;
  transition:background .15s,color .15s;
}
.da-chat-back-mobile:hover{ background:var(--brand-tint);color:var(--brand); }
.da-chat-back-mobile svg{ stroke:currentColor;fill:none; }
.da-chat-avatar{
  width:36px;height:36px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;flex-shrink:0;
}
.da-chat-other-name{ font-size:14px;font-weight:700;color:var(--ink); }
.da-chat-topbar-right{ position:relative; }
.da-chat-menu-btn{
  width:32px;height:32px;display:flex;align-items:center;justify-content:center;
  cursor:pointer;border-radius:6px;color:var(--muted);
  transition:background .15s,color .15s;
}
.da-chat-menu-btn:hover{ background:var(--brand-tint);color:var(--brand); }
.da-chat-menu-btn svg{ stroke:currentColor;fill:none; }
.da-chat-menu-dropdown{
  position:absolute;right:0;top:38px;
  background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,.12);
  min-width:180px;z-index:10;overflow:hidden;
  animation:daDropIn .18s ease;
}
@keyframes daDropIn{ from{opacity:0;transform:translateY(-6px)} to{opacity:1;transform:translateY(0)} }
.da-chat-menu-dropdown div{
  display:flex;align-items:center;gap:8px;
  padding:11px 16px;font-size:13px;font-weight:500;
  color:var(--ink);cursor:pointer;
  transition:background .15s;
}
.da-chat-menu-dropdown div:hover{ background:var(--brand-tint); }
.da-chat-menu-dropdown div svg{ stroke:currentColor;fill:none;flex-shrink:0; }
.da-chat-messages{
  flex:1;overflow-y:auto;padding:16px 18px;
  display:flex;flex-direction:column;gap:4px;
  background:#f5f7f6;
}
.da-chat-messages::-webkit-scrollbar{ width:4px; }
.da-chat-messages::-webkit-scrollbar-thumb{ background:#deecea;border-radius:2px; }
.da-chat-msgs-loading{
  display:flex;align-items:center;justify-content:center;
  gap:6px;flex:1;padding:40px;
}
.da-chat-msgs-loading span{
  width:8px;height:8px;border-radius:50%;
  background:var(--brand);opacity:.3;
  animation:daDot .9s ease-in-out infinite;
}
.da-chat-msgs-loading span:nth-child(2){ animation-delay:.15s; }
.da-chat-msgs-loading span:nth-child(3){ animation-delay:.3s; }
@keyframes daDot{ 0%,80%,100%{transform:scale(.7);opacity:.3} 40%{transform:scale(1);opacity:1} }
.da-msg-date-sep{
  text-align:center;font-size:11px;font-weight:700;
  color:var(--pale);margin:10px 0 4px;
  display:flex;align-items:center;gap:10px;
}
.da-msg-date-sep::before,.da-msg-date-sep::after{
  content:'';flex:1;height:1px;background:var(--line);
}
.da-msg{ display:flex;flex-direction:column;max-width:72%; }
.da-msg--me{ align-self:flex-end;align-items:flex-end; }
.da-msg--other{ align-self:flex-start;align-items:flex-start; }
.da-msg-bubble{
  padding:9px 13px;border-radius:14px;
  font-size:13.5px;line-height:1.6;word-break:break-word;
}
.da-msg--me .da-msg-bubble{
  background:var(--brand);color:#fff;
  border-bottom-right-radius:3px;
  box-shadow:0 2px 8px rgba(26,107,94,.25);
}
.da-msg--other .da-msg-bubble{
  background:#fff;color:var(--ink);
  border-bottom-left-radius:3px;
  border:1px solid var(--line);
  box-shadow:0 1px 3px rgba(0,0,0,.05);
}
.da-msg-time{ font-size:10px;color:var(--pale);margin-top:3px;padding:0 2px; }
.da-msg-deleted{
  color:var(--pale) !important;font-style:italic !important;
  background:#f5f5f5 !important;border:1px dashed #e0e0e0 !important;
  font-size:12px !important;
}
.da-msg-highlight{ animation:daMsgHL .8s ease; }
@keyframes daMsgHL{ 0%,100%{background:transparent} 30%{background:rgba(26,107,94,.15)} }
.da-msg-file{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:12px;text-decoration:none;
  transition:opacity .15s,box-shadow .15s;
  min-width:160px;
}
.da-msg-file:hover{ opacity:.9;box-shadow:0 2px 8px rgba(0,0,0,.1); }
.da-msg--me .da-msg-file{
  background:rgba(255,255,255,.25);
  color:#fff;
  border:2px solid rgba(255,255,255,.5);
}
.da-msg--other .da-msg-file,
.da-msg--other .da-msg-file:hover,
.da-msg--other .da-msg-file:visited{
  background:#e8f5f3 !important;
  color:#0d1f1c !important;
  border:2px solid #1a6b5e !important;
  text-decoration:none !important;
}
.da-msg--other .da-msg-file .da-msg-file-name{
  color:#0d1f1c !important;
  font-weight:700 !important;
}
.da-msg--other .da-msg-file .da-msg-file-size{
  color:#6b8f89 !important;
}
.da-msg-file-icon{
  width:34px;height:34px;border-radius:8px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
}
.da-msg--me .da-msg-file-icon{ background:rgba(255,255,255,.2); }
.da-msg--other .da-msg-file-icon{ background:#1a6b5e;color:#fff; }
.da-msg-file-icon svg{ stroke:currentColor;fill:none; }
.da-msg-file svg{ stroke:currentColor;fill:none;flex-shrink:0; }
.da-msg-file-name{ font-size:12px;font-weight:700;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap; }
.da-msg-file-size{ font-size:10px;opacity:.7;margin-top:1px; }
.da-msg-reply-preview{
  font-size:11.5px;color:var(--brand);
  background:rgba(26,107,94,.08);border-left:3px solid var(--brand);
  padding:4px 8px;border-radius:4px;margin-bottom:4px;
  cursor:pointer;max-width:220px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.da-msg--me .da-msg-reply-preview{
  background:rgba(255,255,255,.15);
  border-left-color:rgba(255,255,255,.6);
  color:rgba(255,255,255,.9);
}
.da-emoji-picker{
  display:flex;flex-wrap:wrap;gap:2px;
  padding:10px 12px;background:#fff;
  border-top:1px solid var(--line);
  max-height:120px;overflow-y:auto;
  animation:daSlideUp .18s ease;
}
.da-emoji-picker span{
  font-size:22px;cursor:pointer;padding:3px;
  border-radius:4px;transition:background .12s;line-height:1;
}
.da-emoji-picker span:hover{ background:var(--brand-tint); }
.da-chat-reply-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:7px 14px;background:#eef8f6;
  border-top:1px solid var(--line);font-size:12px;gap:8px;
}
.da-reply-preview{ flex:1;color:var(--brand);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis; }
.da-reply-close{ font-size:18px;cursor:pointer;color:var(--muted);flex-shrink:0;line-height:1;transition:color .15s; }
.da-reply-close:hover{ color:var(--red); }
.da-chat-input-bar{
  display:flex;align-items:flex-end;gap:6px;
  padding:10px 12px;background:#fff;
  border-top:1px solid var(--line);flex-shrink:0;
}
.da-chat-input-btn{
  width:36px;height:36px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:8px;cursor:pointer;color:var(--muted);
  background:transparent;border:none;
  transition:background .15s,color .15s;
}
.da-chat-input-btn:hover{ background:var(--brand-tint);color:var(--brand); }
.da-chat-input-btn svg{ stroke:currentColor;fill:none; }
.da-chat-input-wrap{ flex:1;position:relative; }
.da-chat-textarea{
  width:100%;resize:none;
  border:1.5px solid var(--line);border-radius:10px;
  padding:8px 12px;font-size:13.5px;font-family:inherit;
  color:var(--ink);background:#fff;outline:none;
  max-height:100px;overflow-y:auto;
  transition:border-color .18s;line-height:1.5;
}
.da-chat-textarea:focus{ border-color:var(--brand); }
#da-chat-file-preview{
  font-size:11px;color:var(--brand);font-weight:600;
  padding:4px 8px;background:var(--brand-tint);
  border-radius:6px;margin-bottom:4px;
  display:flex;align-items:center;gap:6px;
}
.da-chat-send-btn{
  width:36px;height:36px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:8px;background:var(--brand);color:#fff;
  cursor:pointer;transition:background .15s,transform .1s;
}
.da-chat-send-btn:hover{ background:#15574c;transform:scale(1.05); }
.da-chat-send-btn svg{ stroke:currentColor;fill:none; }
.da-msg-ctx-menu{
  background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:0 4px 20px rgba(0,0,0,.13);
  min-width:160px;overflow:hidden;
  animation:daDropIn .15s ease;
}
.da-msg-ctx-menu div{
  display:flex;align-items:center;gap:8px;
  padding:10px 14px;font-size:13px;font-weight:500;
  color:var(--ink);cursor:pointer;transition:background .14s;
}
.da-msg-ctx-menu div:hover{ background:var(--brand-tint); }
.da-msg-ctx-menu div svg{ stroke:currentColor;fill:none;flex-shrink:0; }
.da-msg-ctx-del{ color:#c0392b !important; }
.da-msg-ctx-del:hover{ background:#fdf3f2 !important; }
@media(max-width:700px){
  .da-chat-sidebar{ width:100%;border-right:none; }
  .da-chat-main{
    display:none;position:absolute;
    top:0;left:0;right:0;bottom:0;
    z-index:2;background:#fff;
  }
  .da-chat-main.mobile-open{ display:flex; animation:daSlideInRight .25s cubic-bezier(.16,1,.3,1); }
  @keyframes daSlideInRight{ from{transform:translateX(30px);opacity:0} to{transform:translateX(0);opacity:1} }
  .da-chat-back-mobile{ display:flex !important; }
}
.da-msg-deleted{
  color:var(--pale) !important;
  font-style:italic !important;
  background:#f5f5f5 !important;
  border:1px dashed #ddd !important;
}
.da-msg-reply-preview{
  font-size:11.5px;color:var(--brand);
  background:rgba(26,107,94,.08);
  border-left:3px solid var(--brand);
  padding:4px 8px;border-radius:4px;
  margin-bottom:4px;cursor:pointer;
  max-width:220px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.da-msg--me .da-msg-reply-preview{
  background:rgba(255,255,255,.15);
  border-left-color:rgba(255,255,255,.6);
  color:rgba(255,255,255,.85);
}
.da-msg-highlight{
  animation:daMsgHighlight .6s ease;
}
@keyframes daMsgHighlight{
  0%,100%{background:transparent}
  30%{background:rgba(26,107,94,.15)}
}
.da-msg-ctx-menu{
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  box-shadow:0 4px 20px rgba(0,0,0,.13);
  min-width:160px;
  overflow:hidden;
  z-index:9999;
}
.da-msg-ctx-menu div{
  display:flex;align-items:center;gap:8px;
  padding:10px 14px;
  font-size:13px;font-weight:500;color:var(--ink);
  cursor:pointer;transition:background .14s;
}
.da-msg-ctx-menu div:hover{background:var(--brand-tint)}
.da-msg-ctx-menu div svg{stroke:currentColor;fill:none;flex-shrink:0}
.da-msg-ctx-del{color:#c0392b !important}
.da-msg-ctx-del:hover{background:#fdf3f2 !important}
.da-chat-reply-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:7px 14px;background:var(--brand-tint);
  border-top:1px solid var(--line);
  font-size:12px;gap:8px;
}
.da-reply-preview{
  flex:1;color:var(--brand);font-weight:600;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.da-reply-close{
  font-size:18px;cursor:pointer;color:var(--muted);
  flex-shrink:0;line-height:1;
  transition:color .15s;
}
.da-reply-close:hover{color:var(--red)}
.da-msg{ overflow:visible !important; position:relative; }
.da-msg-actions{
  position:absolute;
  top:-30px;
  display:none;
  gap:3px;
  align-items:center;
  z-index:20;
  background:#fff;
  border:1px solid #deecea;
  border-radius:8px;
  padding:3px 4px;
  box-shadow:0 2px 8px rgba(0,0,0,.12);
}
.da-msg--me .da-msg-actions{ right:0; }
.da-msg--other .da-msg-actions{ left:0; }
.da-chat-wrap ~ * .da-menu-toggle,
body:has(.da-chat-wrap) .da-menu-toggle {
  display: none !important;
}
#da-settings-btn{
  position:relative;width:38px;height:38px;display:flex;align-items:center;justify-content:center;
  background:#fff;border:1.5px solid #deecea;border-radius:8px;cursor:pointer;color:#6b8f89;
  flex-shrink:0;user-select:none;transition:background .18s,border-color .18s,color .18s;
}
#da-settings-btn:hover{background:rgba(26,107,94,.13)!important;border-color:var(--brand)!important;color:var(--brand)!important}
#da-settings-overlay{position:fixed;inset:0;z-index:99998;background:rgba(10,28,24,.35);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
#da-settings-overlay.open{opacity:1;visibility:visible}
#da-settings-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:100vw;z-index:99999;
  background:#fff;box-shadow:-4px 0 32px rgba(0,0,0,.14);
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.16,1,.3,1);
}
#da-settings-drawer.open{transform:translateX(0)}
.da-settings-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px 14px;border-bottom:1px solid var(--line);flex-shrink:0;
}
.da-settings-head h3{font-size:15px;font-weight:800;color:var(--ink);margin:0}
.da-settings-close{width:32px;height:32px;border:none;background:none;cursor:pointer;
  color:var(--muted);display:flex;align-items:center;justify-content:center;border-radius:6px;}
.da-settings-close:hover{background:var(--brand-tint)!important;color:var(--brand)!important}
.da-settings-body{flex:1;overflow-y:auto;padding:18px 20px;display:flex;flex-direction:column;gap:24px}
.da-settings-label{font-size:10px;font-weight:800;letter-spacing:.8px;text-transform:uppercase;color:var(--pale);margin-bottom:10px}
.da-settings-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.da-settings-row-text{font-size:13.5px;font-weight:600;color:var(--ink)}
.da-settings-row-sub{font-size:11.5px;color:var(--muted);margin-top:1px}
.da-toggle{position:relative;width:42px;height:24px;flex-shrink:0}
.da-toggle input{opacity:0;width:0;height:0;position:absolute}
.da-toggle-track{
  position:absolute;inset:0;background:#d1d5db;border-radius:100px;cursor:pointer;
  transition:background .2s;
}
.da-toggle input:checked + .da-toggle-track{background:var(--brand)}
.da-toggle-track::after{
  content:'';position:absolute;top:3px;left:3px;width:18px;height:18px;
  background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.2);
}
.da-toggle input:checked + .da-toggle-track::after{transform:translateX(18px)}
.da-color-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.da-color-swatch{
  width:100%;aspect-ratio:1;border-radius:10px;border:2px solid transparent;
  cursor:pointer;transition:transform .15s,border-color .15s;position:relative;
}
.da-color-swatch:hover{transform:scale(1.1)!important}
.da-color-swatch.active{border-color:var(--ink)}
.da-color-swatch.active::after{
  content:'✓';position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:12px;font-weight:800;
}
.da-font-btns{display:flex;gap:6px}
.da-font-btn{
  flex:1;padding:8px 0;border:1.5px solid var(--line);border-radius:8px;background:#fff;
  cursor:pointer;font-weight:700;color:var(--muted);transition:all .15s;
}
.da-font-btn:hover{border-color:var(--brand)!important;color:var(--brand)!important;background:var(--brand-tint)!important}
.da-font-btn.active{background:var(--brand);border-color:var(--brand);color:#fff}
.da-dark .da-cabinet,
.da-dark .da-header,
.da-dark #da-settings-drawer{background:#111827!important}
.da-dark .da-header{background:#1f2937!important;border-color:#374151!important}
.da-dark .da-header-logo{color:#f9fafb!important}
.da-dark .da-sidebar{background:#111827!important}
.da-dark .da-main{background:#111827!important}
.da-dark .da-panel{background:#1f2937!important;border-color:#374151!important}
.da-dark .da-card{background:#1f2937!important;border-color:#374151!important}
.da-dark .da-card-subject,.da-dark .da-card-head{color:#f9fafb!important}
.da-dark .da-card-desc,.da-dark .da-card-footer,.da-dark .da-card-date{color:#9ca3af!important}
.da-dark .da-panel-title{color:#f9fafb!important}
.da-dark .da-input{background:#374151!important;border-color:#4b5563!important;color:#f9fafb!important}
.da-dark .da-settings-label{color:#6b7280!important}
.da-dark .da-settings-row-text{color:#f9fafb!important}
.da-dark .da-settings-row-sub{color:#9ca3af!important}
.da-dark .da-settings-close{color:#9ca3af!important}
.da-dark .da-settings-close:hover{background:#374151!important}
.da-dark .da-settings-head{border-color:#374151!important}
.da-dark #da-settings-drawer{background:#1f2937!important}
.da-dark .da-font-btn{background:#374151!important;border-color:#4b5563!important;color:#9ca3af!important}
.da-dark .da-font-btn.active{background:var(--brand)!important;border-color:var(--brand)!important;color:#fff!important}
.da-dark .da-font-btn:hover{border-color:var(--brand)!important;color:var(--brand)!important}
.da-dark #da-settings-btn,
.da-dark #da-chat-btn{background:#374151!important;border-color:#4b5563!important;color:#9ca3af!important}
.da-dark #da-settings-btn:hover,
.da-dark #da-chat-btn:hover{background:#4b5563!important;border-color:var(--brand)!important;color:var(--brand)!important}
.da-dark .da-logout-btn{background:#374151!important;border-color:#4b5563!important;color:#9ca3af!important}
.da-dark .da-logout-btn:hover{background:#4b5563!important;color:#f87171!important}
.da-dark .da-user-name{color:#f9fafb!important}
.da-dark .da-user-role{color:#9ca3af!important}
.da-dark .da-filter-chip{background:#374151!important;color:#9ca3af!important;border-color:#4b5563!important}
.da-dark .da-filter-chip.active{background:var(--brand)!important;color:#fff!important;border-color:var(--brand)!important}
.da-dark .da-nav-item{color:rgba(255,255,255,.5)!important}
.da-dark .da-nav-item.active{background:rgba(255,255,255,.1)!important;color:#fff!important}
.da-dark .da-summary-table th,.da-dark .da-summary-table td{border-color:#374151!important;color:#d1d5db!important}
.da-dark .da-summary-table tr:nth-child(even){background:#374151!important}
.da-dark .da-empty{color:#6b7280!important}
.da-dark .da-refresh-btn{background:#374151!important;border-color:#4b5563!important;color:var(--brand)!important}
.da-font-sm .da-cabinet{font-size:12.5px!important}
.da-font-sm .da-card-subject{font-size:13px!important}
.da-font-sm .da-panel-title{font-size:15px!important}
.da-font-lg .da-cabinet{font-size:15.5px!important}
.da-font-lg .da-card-subject{font-size:16px!important}
.da-font-lg .da-panel-title{font-size:20px!important}
.da-compact .da-card{padding:8px 12px!important}
.da-compact .da-main{padding:14px!important}
.da-compact .da-panel{padding:14px!important}
.da-compact .da-settings-body{gap:16px}
.da-seg{display:flex;gap:4px;background:var(--brand-tint);border-radius:8px;padding:3px}
.da-seg-btn{
  flex:1;padding:5px 8px;border:none;border-radius:6px;background:transparent;
  font-size:11.5px;font-weight:700;color:var(--muted);cursor:pointer;transition:all .15s;white-space:nowrap;
}
.da-seg-btn:hover{color:var(--brand)!important;background:rgba(255,255,255,.6)!important}
.da-seg-btn.active{background:#fff;color:var(--brand);box-shadow:0 1px 4px rgba(0,0,0,.1)}
.da-view-btns{display:flex;gap:4px}
.da-view-btn{
  width:30px;height:30px;border:1.5px solid var(--line);border-radius:7px;background:#fff;
  display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--muted);
  transition:all .15s;
}
.da-view-btn:hover{border-color:var(--brand)!important;color:var(--brand)!important;background:var(--brand-tint)!important}
.da-view-btn.active{background:var(--brand);border-color:var(--brand);color:#fff}
.da-settings-reset{
  width:100%;padding:10px;border:1.5px solid var(--line);border-radius:8px;background:none;
  font-size:12.5px;font-weight:700;color:var(--muted);cursor:pointer;transition:all .15s;
}
.da-settings-reset:hover{border-color:#c0392b!important;color:#c0392b!important;background:#fff7f7!important}
.da-hw-list.da-hw-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.da-hw-list.da-hw-grid .da-card{height:100%}
.da-no-anim .da-card,.da-no-anim .da-panel,.da-no-anim .da-material-card{transition:none!important;animation:none!important;opacity:1!important}
.da-dark .da-seg{background:#374151!important}
.da-dark .da-seg-btn{color:#9ca3af!important}
.da-dark .da-seg-btn.active{background:#4b5563!important;color:#f9fafb!important;box-shadow:none!important}
.da-dark .da-view-btn{background:#374151!important;border-color:#4b5563!important;color:#9ca3af!important}
.da-dark .da-view-btn.active{background:var(--brand)!important;border-color:var(--brand)!important;color:#fff!important}
.da-dark .da-settings-reset{border-color:#4b5563!important;color:#6b7280!important}
.da-dark .da-settings-reset:hover{border-color:#f87171!important;color:#f87171!important;background:#374151!important}
.da-dark label,.da-dark .da-label{color:#d1d5db!important}
.da-dark h1,.da-dark h2,.da-dark h3,.da-dark h4{color:#f9fafb!important}
.da-dark p{color:#d1d5db!important}
.da-dark .da-form-title{color:#f9fafb!important}
.da-dark .da-section-title,.da-dark .da-panel-title{color:#f9fafb!important}
.da-dark .da-table th{color:#9ca3af!important}
.da-dark .da-table td{color:#d1d5db!important}
.da-dark .da-modal-inner{background:#1f2937!important;color:#f9fafb!important}
.da-dark .da-modal-inner h3{color:#f9fafb!important}
.da-dark .da-tab-title{color:#f9fafb!important}
.da-dark .da-avg-pill{color:#f9fafb!important}
.da-dark .da-final-badge{color:#fff!important}
.da-dark .da-nav-label{color:rgba(255,255,255,.5)!important}
.da-dark .da-export-bar{color:#f9fafb!important}
.da-dark .da-subject-badge{color:#d1d5db!important}
.da-dark .da-material-card{background:#1f2937!important;border-color:#374151!important;color:#d1d5db!important}
.da-dark .da-material-title{color:#f9fafb!important}
.da-dark .da-material-meta{color:#9ca3af!important}
.da-dark .da-card-body{color:#d1d5db!important}
.da-dark .da-card-title{color:#f9fafb!important}
.da-dark select.da-input{background:#374151!important;color:#f9fafb!important;border-color:#4b5563!important}
.da-dark code{background:#374151!important;color:#d1d5db!important}
.da-captcha-wrap{
  display:flex;justify-content:center;margin:4px 0 16px;
}
.cf-turnstile{border-radius:8px;overflow:hidden}
.da-dark .da-captcha-wrap .cf-turnstile iframe{filter:invert(.08) brightness(.95)}