:root{--navy:#0b1f33;--blue:#1d5fa7;--bg:#f4f7fb;--surface:#fff;--text:#1f2d3d;--muted:#718096;--line:#e4eaf0;--green:#16855b;--amber:#b7791f;--red:#bf3d32;--shadow:0 10px 30px rgba(19,42,67,.07)}*{box-sizing:border-box}body{margin:0;font-family:"IBM Plex Sans Thai",system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:15px}a{text-decoration:none}.btn-primary{--bs-btn-bg:var(--blue);--bs-btn-border-color:var(--blue);--bs-btn-hover-bg:#174b84;--bs-btn-hover-border-color:#174b84}.btn-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:#fff;border:1px solid var(--line)}.sidebar{width:280px;position:fixed;inset:0 auto 0 0;background:linear-gradient(180deg,#091d30,#102b46);color:#fff;z-index:1040;overflow-y:auto}.brand-panel{padding:24px 20px 18px;display:flex;align-items:center;gap:13px}.brand-logo{width:55px;height:55px;object-fit:contain;background:#fff;border-radius:16px;padding:5px}.brand-copy{display:flex;flex-direction:column}.brand-copy strong{font-size:1.08rem}.brand-copy span{font-size:.76rem;color:rgba(255,255,255,.55)}.sidebar-label{padding:16px 24px 7px;font-size:.68rem;color:rgba(255,255,255,.38);font-weight:700}.sidebar .nav-link{color:rgba(255,255,255,.72);padding:10px 14px;border-radius:12px;display:flex;align-items:center;gap:12px}.sidebar .nav-link i{width:22px}.sidebar .nav-link:hover{color:#fff;background:rgba(255,255,255,.07)}.sidebar .nav-link.active{color:#fff;background:linear-gradient(90deg,rgba(45,114,187,.45),rgba(45,114,187,.18));box-shadow:inset 3px 0 0 #69aaf0}.sidebar-footer{padding:18px;border-top:1px solid rgba(255,255,255,.09)}.school-chip{display:flex;align-items:center;gap:10px}.school-chip img{width:36px;height:36px;object-fit:contain;background:#fff;border-radius:10px;padding:3px}.school-chip div{display:flex;flex-direction:column}.school-chip strong{font-size:.78rem}.school-chip span{font-size:.68rem;color:rgba(255,255,255,.45)}.mobile-logo{width:42px;height:42px;object-fit:contain}.main-content{margin-left:280px;min-height:100vh}.topbar{height:72px;position:sticky;top:0;z-index:1020;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px}.topbar-title{font-weight:700}.topbar-subtitle{font-size:.73rem;color:var(--muted)}.status-pill{align-items:center;gap:8px;background:#effaf4;color:#16704e;border:1px solid #d9f0e4;border-radius:999px;padding:7px 12px;font-size:.75rem;font-weight:600}.status-dot{width:8px;height:8px;background:#22a06b;border-radius:50%;box-shadow:0 0 0 4px rgba(34,160,107,.12)}.user-menu{align-items:center;gap:10px}.user-avatar{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,var(--blue),#3d84cd);color:#fff;display:grid;place-items:center;font-weight:700}.user-menu div:nth-child(2){display:flex;flex-direction:column}.user-menu strong{font-size:.82rem}.user-menu span{font-size:.7rem;color:var(--muted)}.notification-badge{position:absolute;top:-3px;right:-4px;background:#dc3545;color:#fff;border:2px solid #fff;min-width:20px;height:20px;border-radius:999px;display:grid;place-items:center;font-size:.65rem}.content-wrap{padding:30px;max-width:1800px;margin:0 auto}.page-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px}.page-heading h1{font-size:1.8rem;margin:5px 0 4px;font-weight:700}.page-heading p{margin:0;color:var(--muted)}.eyebrow,.card-kicker{font-size:.68rem;letter-spacing:.11em;font-weight:700;color:var(--blue)}.metric-card{border-radius:18px;padding:20px;min-height:138px;color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}.metric-card:after{content:"";position:absolute;width:130px;height:130px;border-radius:50%;right:-50px;bottom:-60px;background:rgba(255,255,255,.1)}.metric-blue{background:linear-gradient(145deg,#1a5d9f,#2778c5)}.metric-indigo{background:linear-gradient(145deg,#4338ca,#6366f1)}.metric-amber{background:linear-gradient(145deg,#a16207,#d4931e)}.metric-green{background:linear-gradient(145deg,#137a54,#25a675)}.metric-red{background:linear-gradient(145deg,#a93226,#d3544a)}.metric-slate{background:linear-gradient(145deg,#425466,#607589)}.metric-top{display:flex;justify-content:space-between;align-items:center;font-size:.8rem;color:rgba(255,255,255,.82)}.metric-value{font-size:2rem;font-weight:700;margin-top:13px}.metric-note{font-size:.72rem;color:rgba(255,255,255,.7)}.enterprise-card,.filter-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}.filter-card{padding:16px}.card-toolbar{padding:20px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.card-toolbar h2{font-size:1.05rem;margin:3px 0 0}.enterprise-table{font-size:.88rem}.enterprise-table thead th{background:#f9fbfd;color:#6c7a89;font-weight:600;padding:13px 16px;white-space:nowrap}.enterprise-table tbody td{padding:14px 16px;vertical-align:middle;border-color:#edf0f4}.low-stock-row{background:#fffaf2}.overdue-row{background:#fff6f4}.form-control,.form-select{min-height:44px;border-color:#dbe3ec;border-radius:10px}.search-box{position:relative}.search-box>i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#8a99a8;z-index:2}.search-box .form-control{padding-left:40px}.enterprise-modal{border:0;border-radius:18px;overflow:hidden}.enterprise-modal .modal-header{padding:20px 22px}.enterprise-modal .modal-body{padding:22px}.badge-soft-success{background:#e8f7ef;color:#14714f}.badge-soft-warning{background:#fff4d8;color:#946200}.badge-soft-danger{background:#ffeded;color:#b42318}.badge-soft-secondary{background:#edf0f3;color:#52606d}.badge-soft-info{background:#edf5ff;color:#1d5fa7}.asset-thumb{width:52px;height:52px;border-radius:12px;object-fit:cover;background:#eef2f6;border:1px solid var(--line)}.asset-thumb-placeholder{width:52px;height:52px;border-radius:12px;background:#eef3f8;display:grid;place-items:center;color:#8493a1}.image-gallery{display:flex;gap:10px;flex-wrap:wrap}.image-card{width:105px}.image-card img{width:105px;height:82px;object-fit:cover;border-radius:12px;border:2px solid transparent}.image-card.primary img{border-color:var(--blue)}.image-card-actions{display:flex;gap:4px;margin-top:5px}.image-card-actions button{font-size:.68rem;padding:3px 6px}.info-banner,.privacy-box{display:flex;align-items:flex-start;gap:10px;border-radius:13px;padding:13px 15px}.info-banner{background:#eef6ff;border:1px solid #dcecff;color:#315f89}.privacy-box{background:#f1f8f5;border:1px solid #d8ece3;color:#3c6252}.section-title{font-size:.76rem;font-weight:700;color:var(--blue);margin:6px 0 12px}.dialog-modal{max-width:460px;margin:auto}.dialog-icon{width:68px;height:68px;border-radius:22px;display:grid;place-items:center;font-size:2rem}.dialog-success{background:#eaf8f0;color:#16855b}.dialog-danger{background:#ffeded;color:#bf3d32}.dialog-warning{background:#fff5de;color:#b7791f}.dialog-question,.dialog-info{background:#edf5ff;color:#1d5fa7}.notification-list{max-height:560px}.notification-item{display:flex;gap:12px;padding:15px 20px;color:var(--text);border-bottom:1px solid #eef1f4}.notification-item.unread{background:#f2f8ff}.notification-dot{width:9px;height:9px;border-radius:50%;background:#c9d2db;margin-top:7px}.notification-item.unread .notification-dot{background:#1d5fa7}.notification-item p{margin:4px 0 0;color:var(--muted);font-size:.8rem}.site-footer{margin-top:38px;border-top:1px solid var(--line);padding:22px 0 8px;color:var(--muted)}.site-footer-main{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}.footer-school{display:flex;align-items:center;gap:10px}.footer-school img{width:42px;height:42px;object-fit:contain}.footer-school div{display:flex;flex-direction:column}.footer-legal{display:flex;gap:14px;flex-wrap:wrap}.footer-legal a{font-size:.78rem}.education-notice{margin-top:16px;background:#eef5ff;border:1px solid #d8e8fb;border-radius:12px;padding:12px 14px;display:flex;gap:9px;font-size:.78rem}.cookie-notice{position:fixed;left:22px;right:22px;bottom:20px;z-index:1080;max-width:760px;margin:auto;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 60px rgba(11,31,51,.18);padding:16px 18px;display:flex;align-items:center;gap:14px}.cookie-notice.d-none{display:none!important}.cookie-icon{width:46px;height:46px;border-radius:14px;background:#edf5ff;color:var(--blue);display:grid;place-items:center}.cookie-copy{flex:1}.cookie-copy p{margin:2px 0;color:var(--muted);font-size:.78rem}.login-page{background:#fff}.login-layout{min-height:100vh;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(480px,.9fr)}.login-brand-panel{position:relative;display:flex;align-items:center;justify-content:center;padding:70px;background:linear-gradient(135deg,rgba(8,28,48,.98),rgba(16,54,91,.94));color:#fff;overflow:hidden}.login-brand-content{max-width:600px}.login-school-logo{width:110px;height:110px;object-fit:contain;background:#fff;padding:7px;border-radius:24px;margin-bottom:32px}.login-brand-content h1{font-size:3.2rem;line-height:1.1;font-weight:700;margin:10px 0 4px}.login-school-name{font-size:1.15rem;color:#a9cdec;margin-bottom:22px}.login-brand-content>p{line-height:1.8;color:rgba(255,255,255,.72)}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:32px}.feature-grid div{display:flex;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);border-radius:14px;padding:13px 15px}.brand-watermark{position:absolute;right:-35px;bottom:-80px;font-size:13rem;font-weight:700;color:rgba(255,255,255,.025)}.login-form-panel{display:flex;align-items:center;justify-content:center;padding:50px}.login-form-wrap{width:100%;max-width:450px}.input-icon-wrap{position:relative}.input-icon-wrap>i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#8291a0}.input-icon-wrap .form-control{padding-left:42px;min-height:50px}.password-toggle{position:absolute;right:8px;top:50%;transform:translateY(-50%);border:0;background:transparent;color:#7d8a97}.education-login-note{margin-top:22px;padding:11px;border-radius:12px;background:#f7f9fc;border:1px solid #e6ebf1;color:#718096;font-size:.75rem;text-align:center}.login-footer{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#9aa5af;font-size:.72rem}.empty-state{text-align:center;color:#8995a2;padding:28px 10px}.empty-state i{font-size:2.4rem;display:block}@media(max-width:991.98px){.main-content{margin-left:0}.content-wrap{padding:20px}.login-layout{display:block}.login-brand-panel{display:none}.login-form-panel{min-height:100vh;padding:30px}}@media(max-width:575.98px){.content-wrap{padding:14px}.page-heading{align-items:flex-start;flex-direction:column}.page-heading h1{font-size:1.5rem}.cookie-notice{left:10px;right:10px;bottom:10px;flex-wrap:wrap}.cookie-notice .btn{width:100%}.site-footer-main{flex-direction:column;align-items:flex-start}}

/* ===== Final 4.1: Register + Formal Security Verification ===== */
    border:1px solid #dbe4ed;
    background:linear-gradient(180deg,#fbfdff,#f7fafe);
    border-radius:16px;
    padding:16px;
}
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:12px;
    margin-bottom:10px;
}
.security-title{
    font-weight:700;
    color:#20384f;
    display:flex;
    align-items:center;
    gap:7px;
}
    font-size:.66rem;
    font-weight:700;
    color:#176a4e;
    background:#e8f7ef;
    border:1px solid #cfeadb;
    border-radius:999px;
    padding:5px 9px;
    letter-spacing:.03em;
}
    display:flex;
    align-items:stretch;
    gap:8px;
}
    width:220px;
    max-width:calc(100% - 52px);
    height:70px;
    object-fit:contain;
    border-radius:12px;
    background:#f7f9fc;
}
    width:46px;
    min-width:46px;
    border:1px solid #dbe4ed;
    background:#fff;
    color:#315c82;
    border-radius:12px;
    font-size:1.1rem;
}
    text-transform:uppercase;
    letter-spacing:.18em;
    font-weight:700;
    font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.register-callout{
    display:flex;
    justify-content:center;
    gap:6px;
    padding:12px;
    border-radius:12px;
    background:#f7f9fc;
    border:1px solid #e7ecf1;
    font-size:.83rem;
}
.register-callout a{font-weight:700;color:#1d5fa7}
.register-layout{
    min-height:100vh;
    display:grid;
    grid-template-columns:minmax(380px,.8fr) minmax(620px,1.2fr);
}
.register-brand-panel{
    position:sticky;
    top:0;
    height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:60px;
    background:linear-gradient(135deg,rgba(8,28,48,.98),rgba(16,54,91,.94));
    color:#fff;
}
.register-form-panel{
    display:flex;
    align-items:flex-start;
    justify-content:center;
    padding:50px;
    background:#fff;
    min-height:100vh;
}
.register-form-wrap{width:100%;max-width:760px}
.registration-steps{display:grid;gap:12px;margin-top:30px}
.registration-steps>div{
    display:flex;
    align-items:center;
    gap:13px;
    padding:13px 15px;
    border:1px solid rgba(255,255,255,.12);
    background:rgba(255,255,255,.055);
    border-radius:14px;
}
.registration-steps>div>span{
    width:34px;height:34px;border-radius:10px;background:rgba(143,194,245,.18);
    display:grid;place-items:center;color:#a9d3fb;font-weight:700;
}
.registration-steps div div{display:flex;flex-direction:column}
.registration-steps strong{font-size:.88rem}
.registration-steps small{font-size:.72rem;color:rgba(255,255,255,.55)}
@media(max-width:1100px){
    .register-layout{display:block}
    .register-brand-panel{display:none}
    .register-form-panel{padding:30px 18px}
}

/* Restock image upload */
.stock-image-upload{
  border:1px dashed #b9c9d8;
  background:#f8fbfe;
  border-radius:16px;
  padding:16px;
}
.stock-upload-icon{
  width:46px;height:46px;border-radius:14px;
  background:#e9f2fb;color:#1d579e;
  display:flex;align-items:center;justify-content:center;
  font-size:1.25rem;flex:0 0 auto;
}
.stock-image-preview{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(120px,1fr));
  gap:12px;
}
.stock-proof-card{
  border:1px solid #e2e9f0;
  border-radius:14px;
  overflow:hidden;
  background:#fff;
}
.stock-proof-card img{
  width:100%;height:100px;object-fit:cover;display:block;
}
.stock-proof-name{
  font-size:.72rem;color:#66768a;padding:7px 8px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.stock-large-thumb{
  width:100px;height:100px;object-fit:cover;
  border-radius:16px;border:1px solid #e2e9f0;
}
.stock-large-placeholder{
  width:100px;height:100px;border-radius:16px;
  background:#eef3f8;color:#8795a5;
  display:flex;align-items:center;justify-content:center;
  font-size:1.7rem;
}
.stock-proof-button{
  display:inline-flex;align-items:center;gap:7px;padding:4px 8px;
}
.stock-proof-button img{
  width:34px;height:34px;object-fit:cover;border-radius:8px;
}
.stock-image-modal-gallery{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:14px;
}
.stock-modal-image{
  display:block;border-radius:16px;overflow:hidden;
  border:1px solid #e2e9f0;background:#f5f7f9;
}
.stock-modal-image img{
  width:100%;height:190px;object-fit:cover;display:block;
}
@media(max-width:576px){
  .stock-image-preview{grid-template-columns:repeat(2,1fr)}
  .stock-image-modal-gallery{grid-template-columns:1fr}
}