*{box-sizing:border-box}html{font-family:"Sarabun","Noto Sans Thai",Tahoma,Arial,sans-serif;color:#172033;background:#f4f7fb}body{margin:0;min-height:100vh;background:linear-gradient(135deg,#f8fbff 0%,#f4f7fb 55%,#fffdf1 100%)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:285px;background:#0f172a;color:#fff;padding:22px 18px;display:flex;flex-direction:column;z-index:40;box-shadow:18px 0 50px rgba(15,23,42,.12)}.brand{display:flex;gap:12px;align-items:center;padding:8px 8px 22px;border-bottom:1px solid rgba(255,255,255,.1)}.brand img{width:55px;height:55px;border-radius:18px;object-fit:cover;background:#fff;padding:3px}.brand strong{display:block;font-size:1.02rem}.brand small{display:block;color:#a7b1c2;margin-top:4px;font-size:.78rem;line-height:1.35}.side-nav{display:grid;gap:6px;padding:18px 0;overflow:auto}.side-nav a{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;color:#cbd5e1;font-weight:700;transition:.18s}.side-nav a:hover{background:rgba(255,255,255,.08);color:#fff}.side-nav a.active{background:linear-gradient(135deg,var(--primary),#4f46e5);color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.28)}.side-nav a span{width:25px;text-align:center;font-size:1.1rem}.sidebar-footer{margin-top:auto;border-top:1px solid rgba(255,255,255,.1);padding-top:14px;display:grid;gap:8px}.sidebar-footer>a{font-size:.86rem;color:#cbd5e1;padding:8px 10px;border-radius:10px}.sidebar-footer>a:hover{background:rgba(255,255,255,.08);color:#fff}.admin-chip{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.07);padding:10px;border-radius:14px;margin-bottom:4px}.admin-chip>span{font-size:1.35rem}.admin-chip b,.admin-chip small{display:block}.admin-chip small{font-size:.75rem;color:#94a3b8;margin-top:2px}.main-wrap{margin-left:285px;min-height:100vh}.topbar{position:sticky;top:0;z-index:25;display:flex;align-items:center;gap:16px;justify-content:space-between;padding:18px 28px;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid #e7edf5}.topbar h1{font-size:1.45rem;margin:2px 0 0;color:#0f172a}.eyebrow{text-transform:uppercase;letter-spacing:.13em;font-size:.68rem;font-weight:900;color:var(--primary)}.menu-button{display:none;border:0;background:#eef2ff;width:42px;height:42px;border-radius:12px;font-weight:900;cursor:pointer}.content{padding:26px 28px 44px;max-width:1600px;margin:auto}.app-footer{padding:18px 28px;text-align:center;font-size:.78rem;color:#64748b}.grid{display:grid;gap:18px}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:#fff;border:1px solid #e8edf5;border-radius:22px;box-shadow:0 10px 32px rgba(15,23,42,.055);padding:22px}.card.soft{background:linear-gradient(145deg,#fff,#f8fbff)}.card-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.card-title h2,.card-title h3{margin:0;color:#0f172a}.card-title h2{font-size:1.2rem}.card-title h3{font-size:1rem}.muted{color:#64748b}.small{font-size:.82rem}.stat-card{position:relative;overflow:hidden}.stat-card:after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;right:-45px;top:-45px;background:color-mix(in srgb,var(--primary) 10%,transparent)}.stat-card .icon{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:#eff6ff;font-size:1.45rem}.stat-card .value{font-size:2rem;font-weight:900;color:#0f172a;margin-top:14px}.stat-card .label{font-weight:700;color:#64748b;margin-top:3px}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent;border-radius:13px;padding:11px 16px;font-weight:800;cursor:pointer;transition:.16s;white-space:nowrap}.button:hover{transform:translateY(-1px)}.button.primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px color-mix(in srgb,var(--primary) 25%,transparent)}.button.secondary{background:#fff;color:var(--primary);border-color:#cbd8ff}.button.success{background:#059669;color:#fff}.button.warning{background:#f59e0b;color:#fff}.button.danger{background:#dc2626;color:#fff}.button.dark{background:#0f172a;color:#fff}.button.ghost{background:#f8fafc;color:#334155;border-color:#e2e8f0}.button.compact{padding:9px 13px;font-size:.88rem}.button.tiny{padding:6px 10px;border-radius:9px;font-size:.76rem}.actions{display:flex;gap:8px;flex-wrap:wrap}.alert{border-radius:15px;padding:13px 16px;margin-bottom:18px;font-weight:700;border:1px solid}.alert.success{background:#ecfdf5;color:#047857;border-color:#a7f3d0}.alert.error{background:#fef2f2;color:#b91c1c;border-color:#fecaca}.alert.warning{background:#fffbeb;color:#a16207;border-color:#fde68a}.alert.info{background:#eff6ff;color:#1d4ed8;border-color:#bfdbfe}.badge{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:999px;font-size:.72rem;font-weight:900}.badge.success{background:#dcfce7;color:#166534}.badge.warning{background:#fef3c7;color:#92400e}.badge.danger{background:#fee2e2;color:#991b1b}.badge.info{background:#dbeafe;color:#1e40af}.badge.gray{background:#e2e8f0;color:#475569}.table-wrap{overflow:auto;border:1px solid #e8edf5;border-radius:17px}.data-table{width:100%;border-collapse:collapse;min-width:760px;background:#fff}.data-table th,.data-table td{padding:13px 14px;border-bottom:1px solid #edf1f6;text-align:left;vertical-align:middle}.data-table th{font-size:.78rem;text-transform:none;color:#475569;background:#f8fafc;position:sticky;top:0;z-index:1}.data-table td{font-size:.9rem}.data-table tr:last-child td{border-bottom:0}.data-table tbody tr:hover{background:#fbfdff}.score{font-size:1.1rem;font-weight:900}.score.success{color:#047857}.score.warning{color:#b45309}.score.danger{color:#b91c1c}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.field{display:grid;gap:7px}.field.full{grid-column:1/-1}.field label{font-weight:800;color:#334155;font-size:.9rem}.field .hint{color:#64748b;font-size:.76rem}.input,.select,.textarea{width:100%;border:1px solid #d8e0eb;background:#fff;border-radius:13px;padding:11px 12px;color:#172033;outline:none;transition:.15s}.textarea{min-height:105px;resize:vertical}.input:focus,.select:focus,.textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 13%,transparent)}.input[readonly],.input:disabled{background:#f1f5f9;color:#64748b}.filter-bar{display:flex;gap:10px;align-items:end;flex-wrap:wrap}.filter-bar .field{min-width:170px;flex:1}.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.check-card{position:relative;border:1px solid #dfe6ef;border-radius:14px;padding:12px 12px 12px 42px;background:#fff}.check-card>input[type=checkbox]{position:absolute;left:14px;top:16px;width:17px;height:17px;accent-color:var(--primary)}.check-card label{display:block;font-weight:800;cursor:pointer}.check-card small{display:block;margin-top:4px;color:#64748b}.check-card .points-input{margin-top:9px;display:flex;align-items:center;gap:8px}.check-card .points-input input{width:90px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:24px 0 12px}.section-heading h2{margin:0;font-size:1.15rem}.empty{padding:36px;text-align:center;color:#64748b}.empty .emoji{font-size:2.4rem;margin-bottom:10px}.profile-head{display:flex;align-items:center;gap:18px}.profile-avatar{display:grid;place-items:center;width:72px;height:72px;border-radius:22px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;font-size:2rem;font-weight:900}.profile-head h2{margin:0}.profile-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.detail-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.detail-item{background:#f8fafc;border-radius:13px;padding:12px}.detail-item b{display:block;font-size:.75rem;color:#64748b;margin-bottom:4px}.timeline{position:relative;display:grid;gap:14px}.timeline:before{content:"";position:absolute;left:12px;top:5px;bottom:5px;width:2px;background:#dbe4ef}.timeline-item{position:relative;padding-left:36px}.timeline-item:before{content:"";position:absolute;left:6px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--primary);border:3px solid #fff;box-shadow:0 0 0 2px #bfdbfe}.timeline-item .box{background:#f8fafc;border:1px solid #e5eaf1;border-radius:14px;padding:12px}.pill-tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:16px}.pill-tabs a{padding:8px 12px;background:#eef2f7;border-radius:999px;font-weight:800;font-size:.82rem}.pill-tabs a.active{background:var(--primary);color:#fff}.split{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.7fr);gap:18px}.share-box{background:linear-gradient(135deg,#eff6ff,#eef2ff);border:1px solid #c7d2fe;border-radius:16px;padding:14px}.share-url{display:flex;gap:8px;margin-top:10px}.share-url input{min-width:0;flex:1}.notice-box{border-left:5px solid var(--primary);background:#eff6ff;border-radius:12px;padding:13px 15px}.danger-zone{border:1px dashed #fca5a5;background:#fff7f7}.pagination{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;margin-top:18px}.pagination a,.pagination span{min-width:36px;height:36px;display:grid;place-items:center;border-radius:10px;border:1px solid #e2e8f0;background:#fff;font-weight:800}.pagination .current{background:var(--primary);color:#fff;border-color:var(--primary)}.bar-chart{display:grid;gap:10px}.bar-row{display:grid;grid-template-columns:minmax(110px,220px) 1fr 55px;gap:10px;align-items:center}.bar-track{height:12px;background:#e9eef5;border-radius:999px;overflow:hidden}.bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),#7c3aed);border-radius:999px}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 10% 10%,color-mix(in srgb,var(--primary) 18%,transparent),transparent 40%),#0f172a}.login-card{width:min(920px,100%);display:grid;grid-template-columns:1fr 1fr;background:#fff;border-radius:28px;overflow:hidden;box-shadow:0 25px 80px rgba(0,0,0,.3)}.login-intro{padding:42px;background:linear-gradient(145deg,#0f172a,#1e293b);color:#fff}.login-intro img{width:80px;height:80px;border-radius:22px;object-fit:cover;background:#fff;padding:4px}.login-intro h1{font-size:2.15rem;margin:28px 0 12px}.login-intro p{color:#cbd5e1;line-height:1.7}.login-form{padding:42px}.login-form h2{font-size:1.7rem;margin:0 0 6px}.login-form form{margin-top:26px;display:grid;gap:16px}.print-only{display:none}@media(max-width:1100px){.grid.cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}.split{grid-template-columns:1fr}}@media(max-width:820px){.sidebar{transform:translateX(-105%);transition:.2s}.sidebar.open{transform:translateX(0)}.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:35}.sidebar-backdrop.show{display:block}.main-wrap{margin-left:0}.menu-button{display:block}.topbar{padding:14px 16px}.topbar h1{font-size:1.16rem}.content{padding:18px 14px 36px}.grid.cols-2,.grid.cols-3,.grid.cols-4,.form-grid,.form-grid.cols-3,.detail-list{grid-template-columns:1fr}.check-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.login-card{grid-template-columns:1fr}.login-intro{display:none}.login-form{padding:28px}.topbar .button.compact{font-size:0;padding:10px;width:42px;height:42px}.topbar .button.compact:after{content:"＋";font-size:1.3rem}.profile-head{align-items:flex-start}.share-url{flex-direction:column}.bar-row{grid-template-columns:100px 1fr 40px}}@media(max-width:520px){.card{padding:16px;border-radius:18px}.filter-bar{display:grid;grid-template-columns:1fr}.filter-bar .field{min-width:0}.actions .button{flex:1}.stat-card .value{font-size:1.65rem}.profile-avatar{width:58px;height:58px;border-radius:18px}.data-table{min-width:680px}}

/* v2: teacher accounts and incident attachments */
.inline-form{display:inline-flex;align-items:center}.compact-select{padding:7px 9px;min-width:150px}.credential-card{border:2px solid #f59e0b;background:#fffdf5}.temp-password{font-size:1rem;font-weight:900;color:#9a3412;background:#ffedd5;padding:5px 8px;border-radius:8px}.check-inline{display:flex!important;align-items:center;gap:8px;font-weight:700!important;font-size:.82rem!important;margin-top:4px}.check-inline input{width:17px;height:17px;accent-color:var(--primary)}.attachment-section{margin-top:18px}.attachment-section:first-of-type{margin-top:0}.attachment-section h3{margin:0 0 10px;font-size:1rem}.attachment-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.attachment-card{border:1px solid #dfe6ef;border-radius:16px;overflow:hidden;background:#fff;display:flex;flex-direction:column;min-width:0}.attachment-card>a{display:block;background:#f1f5f9}.attachment-card img{display:block;width:100%;height:190px;object-fit:cover}.pdf-preview{height:190px;display:grid!important;place-items:center;align-content:center;gap:8px;font-size:3rem;color:#b91c1c}.pdf-preview span{font-size:.9rem;font-weight:800;color:#334155}.attachment-info{padding:12px;display:grid;gap:6px;min-width:0}.attachment-info b{font-size:.88rem;overflow-wrap:anywhere}.attachment-info small{color:#64748b}.attachment-actions{display:flex;gap:7px;flex-wrap:wrap;padding:0 12px 12px;margin-top:auto}.attachment-actions form{display:inline-flex}.upload-panel{margin-top:18px;padding:16px;border-radius:16px;background:#f8fafc;border:1px dashed #cbd5e1}.compact-empty{padding:18px}.attachment-public-note{font-size:.78rem;color:#64748b}
@media(max-width:1100px){.attachment-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.attachment-grid{grid-template-columns:1fr}.attachment-card img,.pdf-preview{height:220px}.compact-select{min-width:120px}}

/* v4: editable/removable teacher accounts */
.user-account-table{min-width:1040px}.user-name-input{min-width:165px;padding:8px 10px;border-radius:10px}.account-status-select{min-width:105px}.account-actions{min-width:260px;align-items:center}.button:disabled{opacity:.45;cursor:not-allowed;filter:grayscale(.25)}

/* v9: searchable student picker on incident form */
.student-search-field{position:relative}.student-search-wrap{position:relative}.student-search-results{position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:30;max-height:340px;overflow:auto;background:#fff;border:1px solid #cbd5e1;border-radius:14px;box-shadow:0 18px 45px rgba(15,23,42,.18);padding:6px}.student-search-result{width:100%;display:grid;gap:4px;text-align:left;border:0;background:#fff;border-radius:10px;padding:10px 12px;cursor:pointer;color:#172033}.student-search-result:hover,.student-search-result.active{background:#eff6ff}.student-search-result strong{font-size:.9rem}.student-search-result small{color:#64748b;font-size:.76rem}.student-search-empty{padding:18px 12px;text-align:center;color:#64748b;font-size:.85rem}.student-search-results[hidden]{display:none}
@media(max-width:620px){.student-search-results{max-height:280px}.student-search-result{padding:12px}}