:root{
  --siya:#0f4f91;
  --siya-deep:#0a3c70;
  --siya2:#2f80ed;
  --sky:#eaf4ff;
  --sky-2:#f5faff;
  --white:#ffffff;
  --bg:#f4f9ff;
  --ink:#14324d;
  --muted:#6f8599;
  --line:#d9e9f8;
  --line-strong:#b9d5f0;
  --shadow:0 14px 38px rgba(15,79,145,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{font-family:"IBM Plex Sans Thai",system-ui,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh}
a{text-decoration:none;color:var(--siya2)}
a:hover{color:var(--siya-deep)}

/* Header / brand */
.siya-nav{background:rgba(255,255,255,.97);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);box-shadow:0 4px 18px rgba(15,79,145,.04)}
.brand-logo{width:46px;height:46px;object-fit:contain;filter:drop-shadow(0 5px 9px rgba(15,79,145,.12))}
.navbar-brand span{display:flex;flex-direction:column;line-height:1.05}
.navbar-brand strong{color:var(--siya-deep);font-weight:700;letter-spacing:-.01em}
.navbar-brand small{font-size:.72rem;color:var(--muted);font-weight:500;margin-top:.18rem}
.nav-link{color:#46647e;font-weight:500;border-radius:10px;padding:.55rem .75rem!important}
.nav-link:hover{background:var(--sky);color:var(--siya)}

/* Buttons */
.btn{border-radius:11px;font-weight:600;transition:.2s ease}
.btn-primary{--bs-btn-bg:var(--siya);--bs-btn-border-color:var(--siya);--bs-btn-hover-bg:var(--siya-deep);--bs-btn-hover-border-color:var(--siya-deep);--bs-btn-active-bg:var(--siya-deep);box-shadow:0 8px 18px rgba(15,79,145,.16)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-outline-primary{--bs-btn-color:var(--siya);--bs-btn-border-color:#9fc5e8;--bs-btn-hover-bg:var(--sky);--bs-btn-hover-border-color:var(--siya);--bs-btn-hover-color:var(--siya-deep);background:#fff}

/* Landing */
.hero{padding:88px 0 70px;background:linear-gradient(180deg,#ffffff 0%,#f3f9ff 100%);position:relative;overflow:hidden;border-bottom:1px solid #e6f1fb}
.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.hero:before{width:420px;height:420px;right:-180px;top:-220px;background:rgba(47,128,237,.075)}
.hero:after{width:260px;height:260px;left:-150px;bottom:-160px;background:rgba(91,166,255,.07)}
.hero .container{position:relative;z-index:1}
.eyebrow{display:inline-flex;gap:.5rem;align-items:center;padding:.5rem .85rem;border:1px solid #cde2f7;background:#fff;border-radius:999px;color:var(--siya);font-weight:600;font-size:.85rem;box-shadow:0 5px 18px rgba(15,79,145,.05)}
.hero h1{font-size:clamp(2.25rem,5vw,4.45rem);line-height:1.05;letter-spacing:-.035em;font-weight:700;color:#123e67}
.hero .lead{color:var(--muted);max-width:700px;line-height:1.75}
.glass-card,.card-modern{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
.glass-card{padding:1.5rem}
.card-modern{transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card-modern:hover{border-color:#c5def4;box-shadow:0 18px 42px rgba(15,79,145,.13)}
.metric{padding:1.2rem;background:linear-gradient(180deg,#fff,#f9fcff);border-color:#e0edf8!important}
.metric .icon{width:44px;height:44px;border-radius:13px;background:var(--sky);color:var(--siya);display:grid;place-items:center;font-size:1.16rem;border:1px solid #d7e9fa}
.metric .num{font-size:1.75rem;font-weight:700;color:var(--siya-deep)}
.section-title{font-weight:700;letter-spacing:-.025em;color:#153f64}
.activity-card{height:100%;overflow:hidden}
.activity-cover{height:180px;background:linear-gradient(145deg,#e4f2ff,#f9fcff);display:grid;place-items:center;color:var(--siya);font-size:2.2rem}
.activity-card img{width:100%;height:180px;object-fit:cover}
.badge-soft{background:var(--sky);color:var(--siya);border:1px solid #cae0f6}

/* Forms */
.form-label{font-weight:600;color:#365873}
.form-control,.form-select{border-radius:12px;border-color:#d7e6f4;padding:.72rem .85rem;background:#fff}
.form-control:focus,.form-select:focus{border-color:#75aee2;box-shadow:0 0 0 .2rem rgba(47,128,237,.12)}
.input-group>.btn{border-color:#d7e6f4}
.auth-shell{min-height:calc(100vh - 74px);display:grid;place-items:center;padding:46px 12px;background:linear-gradient(180deg,#fafdff 0%,#eef7ff 100%)}
.auth-card{max-width:520px;width:100%;padding:30px}
.auth-card img{object-fit:contain;filter:drop-shadow(0 7px 14px rgba(15,79,145,.14))}

/* Dashboard */
.dashboard-shell{padding:34px 0}
.side-panel{position:sticky;top:98px}
.side-link{display:flex;align-items:center;gap:.72rem;padding:.78rem .9rem;color:#4a6780;border-radius:11px;font-weight:500}
.side-link:hover,.side-link.active{background:var(--sky);color:var(--siya);font-weight:600}
.admin-top{background:linear-gradient(120deg,#0f4f91,#2f80ed);color:#fff;border-radius:22px;padding:28px;box-shadow:0 18px 40px rgba(15,79,145,.2);position:relative;overflow:hidden}
.admin-top:after{content:"";position:absolute;width:220px;height:220px;border:42px solid rgba(255,255,255,.08);border-radius:50%;right:-90px;top:-95px}
.table-modern{--bs-table-bg:transparent}
.table-modern thead th{font-size:.8rem;text-transform:uppercase;letter-spacing:.035em;color:var(--muted);border-bottom-color:var(--line);background:#f8fbff}
.table-modern tbody td{vertical-align:middle;border-bottom-color:#edf4fb}
.empty-state{padding:44px;text-align:center;color:var(--muted)}
.empty-state i{font-size:2.4rem;color:#92b7d9}

/* Verify */
.verify-mark{width:76px;height:76px;border-radius:50%;display:grid;place-items:center;background:#eaf8f1;color:#198754;font-size:2rem;margin:auto;border:1px solid #c9ead8}
.verify-mark.revoked{background:#fff0f1;color:#dc3545;border-color:#f4cfd2}

/* Footer / cookie */
.cookie-banner{position:fixed;left:20px;right:20px;bottom:20px;max-width:760px;margin:auto;background:#fff;border:1px solid var(--line);box-shadow:0 20px 60px rgba(15,79,145,.18);border-radius:16px;padding:16px;z-index:1080;display:flex;align-items:center;justify-content:space-between;gap:16px}
.siya-footer{background:#fff;border-top:1px solid var(--line)}

/* Certificate — formal + modern, blue/white */
.certificate-page{background:#dceafa;padding:28px}
.certificate-sheet{width:297mm;height:210mm;min-height:210mm;margin:auto;background:#fff;position:relative;overflow:hidden;box-shadow:0 22px 65px rgba(10,60,112,.2);padding:13mm 17mm;color:#18324a}
.certificate-sheet:before{content:"";position:absolute;inset:7mm;border:2px solid #0f4f91;pointer-events:none;z-index:1}
.certificate-sheet:after{content:"";position:absolute;inset:10mm;border:1px solid #b9d8f4;pointer-events:none;z-index:1}
.cert-corner{position:absolute;width:54mm;height:54mm;border-radius:50%;background:rgba(47,128,237,.055);z-index:0}
.cert-corner.one{left:-25mm;top:-30mm}
.cert-corner.two{right:-26mm;bottom:-31mm}
.cert-ribbon{position:absolute;left:0;right:0;top:0;height:5mm;background:linear-gradient(90deg,#0a3c70,#2f80ed,#79b7f3);z-index:2}
.cert-watermark{position:absolute;left:50%;top:50%;width:92mm;height:92mm;transform:translate(-50%,-50%);object-fit:contain;opacity:.028;filter:grayscale(1);z-index:0}
.cert-content{position:relative;z-index:3;text-align:center;height:181mm;display:flex;flex-direction:column;align-items:center;justify-content:center;padding-top:2mm}
.cert-logo{width:25mm;height:25mm;object-fit:contain;margin-bottom:2.5mm;filter:drop-shadow(0 3px 5px rgba(15,79,145,.08))}
.cert-school{font-size:15pt;color:#0a3c70;font-weight:700;letter-spacing:.01em}
.cert-school-en{font-size:8.5pt;color:#7391aa;letter-spacing:.1em;margin-top:.5mm}
.cert-title{font-size:35pt;line-height:1;margin:4.5mm 0 1mm;color:#0f4f91;font-weight:700;letter-spacing:.045em}
.cert-en{font-size:9.5pt;color:#7391aa;letter-spacing:.23em;text-transform:uppercase}
.cert-divider{width:44mm;height:1.3mm;margin:3.5mm auto 1mm;border-radius:99px;background:#2f80ed}
.cert-lead{font-size:13pt;margin-top:4.5mm;color:#536b80}
.cert-name{font-size:28pt;font-weight:700;color:#123d63;margin:2mm 0 2.5mm;padding:0 12mm 2mm;border-bottom:1.4px solid #8bbce8;min-width:125mm}
.cert-text{font-size:13pt;max-width:225mm;line-height:1.65;color:#354f65}
.cert-text strong{color:#0a3c70}
.cert-bottom{width:100%;display:grid;grid-template-columns:1fr 1fr 1fr;align-items:end;margin-top:8mm;padding:0 10mm}
.cert-qr-wrap{display:flex;flex-direction:column;align-items:center}
.cert-qr{width:25mm;height:25mm;margin:auto;padding:1.5mm;background:#fff;border:1px solid #cfe2f4;border-radius:2.5mm}
.cert-sign{height:16mm}
.cert-meta{font-size:8.4pt;color:#71889c;line-height:1.45}
.cert-meta strong{color:#315773}
.cert-sign-line{width:58mm;border-top:1px solid #6588a5;margin:auto;padding-top:2mm;color:#31526c;font-size:10pt}
.cert-stamp{position:absolute;width:76mm;height:76mm;border-radius:50%;border:17mm solid rgba(47,128,237,.025);right:-16mm;top:-22mm;z-index:0}

@media(max-width:900px){
  .certificate-page{overflow:auto}
  .hero{padding-top:58px}
  .side-panel{position:static}
  .cookie-banner{left:12px;right:12px;bottom:12px}
  .certificate-sheet{transform-origin:top left}
}
@media print{
  body{background:#fff}
  .siya-nav,.siya-footer,.no-print,.cookie-banner{display:none!important}
  .certificate-page{padding:0;background:#fff}
  .certificate-sheet{box-shadow:none;margin:0;width:297mm;height:210mm;min-height:210mm}
  @page{size:A4 landscape;margin:0}
}

/* Optional dark mode keeps school-blue accent but certificates remain white */
html[data-theme='dark']{--bg:#101a24;--ink:#e8f2fb;--muted:#99afc3;--line:#283c50;background:#101a24;color-scheme:dark}
html[data-theme='dark'] body{background:var(--bg);color:var(--ink)}
html[data-theme='dark'] .siya-nav,html[data-theme='dark'] .card-modern,html[data-theme='dark'] .glass-card,html[data-theme='dark'] .siya-footer,html[data-theme='dark'] .cookie-banner{background:#162637;color:var(--ink);border-color:var(--line)}
html[data-theme='dark'] .form-control,html[data-theme='dark'] .form-select{background:#10202f;color:var(--ink);border-color:#31506a}
html[data-theme='dark'] .table{--bs-table-color:var(--ink)}
html[data-theme='dark'] .text-muted{color:var(--muted)!important}
html[data-theme='dark'] .certificate-sheet{background:#fff;color:#18324a}

/* Student dashboard single-page navigation */
.side-link[type="button"]{
  width:100%;border:0;background:transparent;text-align:left;font-family:inherit;
}
.dashboard-view{display:none;animation:dashboardFade .18s ease}
.dashboard-view.active{display:block}
@keyframes dashboardFade{from{opacity:.25;transform:translateY(4px)}to{opacity:1;transform:none}}
.section-head{display:flex;align-items-end;justify-content:space-between;gap:1rem}
.min-w-0{min-width:0}
@media(max-width:991.98px){
  .side-panel nav{grid-template-columns:repeat(2,minmax(0,1fr));display:grid!important}
  .side-link{justify-content:flex-start}
}

/* V5 — profile image */
.nav-avatar,.nav-avatar-fallback{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;object-fit:cover;border:2px solid #d7e9fa;background:var(--sky);color:var(--siya);overflow:hidden}
.dashboard-avatar{width:52px;height:52px;border-radius:16px;object-fit:cover;border:2px solid #d9e9f8;box-shadow:0 8px 20px rgba(15,79,145,.10);flex:0 0 auto}
.dashboard-avatar-empty,.profile-avatar-empty,.settings-avatar-empty{display:grid;place-items:center;background:var(--sky);color:var(--siya)}
.profile-avatar-lg{width:74px;height:74px;border-radius:22px;object-fit:cover;border:2px solid #d9e9f8;box-shadow:0 10px 24px rgba(15,79,145,.12);font-size:1.6rem;flex:0 0 auto}
.settings-avatar{width:88px;height:88px;border-radius:24px;object-fit:cover;border:2px solid #d9e9f8;box-shadow:0 10px 26px rgba(15,79,145,.10);font-size:1.8rem;flex:0 0 auto}
[data-theme-choice].active{background:var(--sky);border-color:var(--siya);color:var(--siya-deep);box-shadow:inset 0 0 0 1px rgba(15,79,145,.08)}

/* V5 — smoother navigation and dashboard transitions */
@view-transition{navigation:auto}
::view-transition-old(root){animation:siyaPageOut .18s ease both;background:var(--bg)}
::view-transition-new(root){animation:siyaPageIn .28s cubic-bezier(.22,1,.36,1) both;background:var(--bg)}
@keyframes siyaPageOut{to{opacity:0;transform:translateY(-3px)}}
@keyframes siyaPageIn{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
.dashboard-view{animation:none}
.dashboard-view.active{display:block;animation:dashboardFade .30s cubic-bezier(.22,1,.36,1)}
@keyframes dashboardFade{from{opacity:0;transform:translateY(9px);filter:blur(1.5px)}to{opacity:1;transform:none;filter:none}}
.card-modern,.btn,.nav-link,.side-link,.form-control,.form-select{transition-duration:.25s;transition-timing-function:cubic-bezier(.22,1,.36,1)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.dashboard-view.active,.card-modern,.btn,.nav-link,.side-link,.form-control,.form-select{animation:none!important;transition:none!important}::view-transition-old(root),::view-transition-new(root){animation:none!important}}

/* V7 — prevent white flash/surfaces while navigating in dark mode */
html[data-theme='dark'],html[data-theme='dark'] body{background:#101a24!important}
html[data-theme='dark'] .bg-body-tertiary{background-color:#1b2d3e!important}
html[data-theme='dark'] .btn-outline-primary{background:#162637;color:#9dcaff;border-color:#315f88}
html[data-theme='dark'] .table-modern thead th{background:#132334;color:#99afc3;border-color:#283c50}
html[data-theme='dark'] .auth-shell{background:#101a24}
html[data-theme='dark'] .hero{background:linear-gradient(180deg,#101a24 0%,#132334 100%);border-bottom-color:#283c50}
html[data-theme='dark'] .hero h1,html[data-theme='dark'] .section-title,html[data-theme='dark'] .navbar-brand strong{color:#e8f2fb}
html[data-theme='dark'] .eyebrow{background:#162637;border-color:#31506a;color:#9dcaff}

/* V8 — landing particles + live search */
.hero-particles{isolation:isolate}
.siya-particles{position:absolute;inset:0;width:100%;height:100%;z-index:0;pointer-events:none;opacity:.95}
.hero-particles .container{position:relative;z-index:1}
.live-search-wrap{position:relative}
.live-search-wrap .bi-search{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);pointer-events:none}
.live-search-wrap .form-control{padding-left:2.55rem}
.live-filter-bar{background:var(--sky-2);border:1px solid var(--line);border-radius:16px;padding:14px}
.search-empty{padding:34px;text-align:center;color:var(--muted)}
html[data-theme='dark'] .live-filter-bar{background:#132334;border-color:#283c50}
@media(prefers-reduced-motion:reduce){.siya-particles{display:none}}

/* V9 — global particle layer + selector */
body{position:relative;overflow-x:hidden}
body > *:not(.siya-particle-layer):not(.particle-switcher):not(.modal):not(.modal-backdrop):not(.privacy-notice-pop){position:relative;z-index:1}
.siya-particle-layer{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.siya-particle-layer canvas{width:100%;height:100%;display:block;opacity:.62}
html[data-theme='dark'] .siya-particle-layer canvas{opacity:.48}
.particle-switcher{position:fixed;left:20px;bottom:20px;z-index:1040}
.particle-toggle{width:46px;height:46px;border-radius:50%;border:1px solid var(--line-strong);background:rgba(255,255,255,.94);color:var(--siya);box-shadow:0 12px 30px rgba(15,79,145,.18);display:grid;place-items:center;font-size:1.05rem;backdrop-filter:blur(14px);transition:.22s ease}
.particle-toggle:hover{transform:translateY(-2px) rotate(-6deg);border-color:var(--siya);box-shadow:0 15px 34px rgba(15,79,145,.24)}
.particle-menu{position:absolute;left:0;bottom:58px;width:220px;padding:10px;background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:17px;box-shadow:0 18px 46px rgba(15,79,145,.20);backdrop-filter:blur(18px);opacity:0;visibility:hidden;transform:translateY(8px) scale(.98);transform-origin:left bottom;transition:.2s ease}
.particle-switcher.open .particle-menu{opacity:1;visibility:visible;transform:none}
.particle-menu-title{font-size:.78rem;color:var(--muted);font-weight:600;padding:5px 8px 8px}
.particle-menu button{width:100%;display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--ink);padding:9px 10px;border-radius:11px;text-align:left;font-family:inherit;transition:.18s ease}
.particle-menu button i{width:22px;color:var(--siya);font-size:1rem}
.particle-menu button:hover,.particle-menu button.active{background:var(--sky);color:var(--siya-deep)}
.particle-menu button.active:after{content:'✓';margin-left:auto;color:var(--siya);font-weight:700}
html[data-theme='dark'] .particle-toggle,html[data-theme='dark'] .particle-menu{background:rgba(20,35,50,.96);border-color:#31506a;color:#dbeeff}
html[data-theme='dark'] .particle-menu button{color:#dbe8f3}
html[data-theme='dark'] .particle-menu button:hover,html[data-theme='dark'] .particle-menu button.active{background:#20364b;color:#b9dcff}
@media(max-width:575.98px){.particle-switcher{left:12px;bottom:12px}.particle-menu{width:205px}}
@media print{.siya-particle-layer,.particle-switcher{display:none!important}}
.modal-open .particle-switcher{opacity:0;visibility:hidden;pointer-events:none}

/* V10 — multi-select attendance action popup */
.attendance-action-pop{position:fixed;left:50%;bottom:24px;transform:translate(-50%,18px);z-index:1085;display:flex;align-items:center;gap:8px;padding:9px 10px 9px 14px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.96);box-shadow:0 18px 48px rgba(15,79,145,.22);backdrop-filter:blur(16px);opacity:0;visibility:hidden;transition:.2s cubic-bezier(.22,1,.36,1)}
.attendance-action-pop.show{opacity:1;visibility:visible;transform:translate(-50%,0)}
.attendance-selected-count{font-size:.88rem;color:var(--muted);padding-right:4px;white-space:nowrap}.attendance-action-pop .btn{border-radius:10px;min-width:68px}
html[data-theme='dark'] .attendance-action-pop{background:rgba(20,35,50,.97);border-color:#31506a;box-shadow:0 18px 48px rgba(0,0,0,.32)}
.table-modern .form-check-input{width:1.05rem;height:1.05rem;cursor:pointer}
@media(max-width:575.98px){.attendance-action-pop{bottom:76px;width:calc(100% - 24px);justify-content:center}.attendance-action-pop .btn{min-width:auto;flex:1}}
@media print{.attendance-action-pop{display:none!important}}

/* V16 — richer landing page + sticky footer + production privacy notice */
body{display:flex;flex-direction:column;min-height:100vh}
.siya-footer{margin-top:auto!important;width:100%}
.footer-logo{width:42px;height:42px;object-fit:contain;filter:drop-shadow(0 4px 8px rgba(15,79,145,.10))}
.footer-meta a{color:var(--muted);font-weight:500}.footer-meta a:hover{color:var(--siya)}

.home-hero{padding:96px 0 88px;min-height:620px;display:flex;align-items:center}
.home-accent{color:var(--siya2)}
.home-greeting{font-weight:600;color:var(--siya);font-size:1rem}
.home-trust{display:flex;flex-wrap:wrap;gap:10px 18px;color:var(--muted);font-size:.9rem}.home-trust span{display:inline-flex;align-items:center;gap:7px}.home-trust i{color:var(--siya)}
.certificate-preview-wrap{position:relative;min-height:390px;display:grid;place-items:center;perspective:900px}
.certificate-preview-shadow{position:absolute;width:82%;height:65%;border-radius:28px;background:rgba(47,128,237,.14);filter:blur(34px);transform:translate(24px,36px)}
.certificate-preview-card{position:relative;width:min(100%,480px);aspect-ratio:1.414/1;background:#fff;border:1px solid #cae0f6;border-radius:22px;box-shadow:0 30px 80px rgba(15,79,145,.18);padding:26px 30px;text-align:center;overflow:hidden;transform:rotate(2.2deg);transition:.35s cubic-bezier(.22,1,.36,1)}
.certificate-preview-wrap:hover .certificate-preview-card{transform:rotate(.5deg) translateY(-5px)}
.certificate-preview-card:before,.certificate-preview-card:after{content:"";position:absolute;inset:12px;border:1px solid #d8eafa;border-radius:14px;pointer-events:none}.certificate-preview-card:after{inset:17px;border-color:#8fbee8}
.certificate-preview-top{position:absolute;left:0;right:0;top:0;height:7px;background:linear-gradient(90deg,#0a3c70,#2f80ed,#8ac6ff)}
.certificate-preview-logo{width:54px;height:54px;object-fit:contain;position:relative;z-index:1;margin-top:4px}.certificate-preview-school{font-weight:700;color:#0a3c70;font-size:1.05rem;position:relative;z-index:1}.certificate-preview-en{font-size:.58rem;letter-spacing:.15em;color:#7f9bb3;position:relative;z-index:1}.certificate-preview-title{font-size:2.15rem;font-weight:700;color:#0f4f91;line-height:1;margin-top:18px;position:relative;z-index:1}.certificate-preview-sub{font-size:.62rem;text-transform:uppercase;letter-spacing:.22em;color:#84a1b9;position:relative;z-index:1}.certificate-preview-line{width:70px;height:3px;border-radius:99px;background:#2f80ed;margin:11px auto 5px;position:relative;z-index:1}.certificate-preview-name{width:58%;height:13px;border-bottom:2px solid #a9cfee;margin:22px auto 17px;position:relative;z-index:1}.certificate-preview-footer{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:16px;position:relative;z-index:1;margin-top:20px}.certificate-preview-sign{height:20px;border-bottom:1px solid #a3bacd}.certificate-preview-qr{font-size:2.7rem;line-height:1;color:#0f4f91}
.certificate-preview-badge{position:absolute;right:-2px;bottom:34px;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.96);border:1px solid #cfe4f7;border-radius:16px;padding:11px 14px;box-shadow:0 16px 40px rgba(15,79,145,.16);backdrop-filter:blur(12px);z-index:4}.certificate-preview-badge>i{font-size:1.55rem;color:#198754}.certificate-preview-badge span{display:flex;flex-direction:column;line-height:1.15}.certificate-preview-badge small{color:var(--muted);font-size:.72rem;margin-top:3px}
.home-section{position:relative}.home-kicker{display:inline-flex;align-items:center;gap:6px;color:var(--siya);font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.home-kicker.danger{color:#d36a4f}.home-kicker.light{color:#dceeff}.home-more-link{font-weight:600;white-space:nowrap}
.home-activity-card{overflow:hidden}.home-activity-media{height:205px;position:relative;overflow:hidden;background:linear-gradient(145deg,#e4f2ff,#f9fcff)}.home-activity-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.22,1,.36,1)}.home-activity-card:hover .home-activity-media img{transform:scale(1.035)}.home-activity-placeholder{height:100%;display:grid;place-items:center;font-size:2.5rem;color:var(--siya)}.home-status-badge{position:absolute;left:16px;top:16px;padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.94);border:1px solid rgba(201,225,246,.95);font-size:.75rem;font-weight:700;color:#14724c;box-shadow:0 6px 18px rgba(15,79,145,.10)}.home-activity-title{min-height:2.7em;line-height:1.35}.home-activity-meta{display:grid;gap:7px;color:var(--muted);font-size:.87rem}.home-activity-meta span{display:flex;align-items:center;gap:8px}.home-activity-meta i{color:var(--siya)}.home-capacity{font-size:.82rem}.home-capacity .progress{height:6px;margin-top:8px;background:#e8f2fb;border-radius:99px}.home-capacity .progress-bar{background:linear-gradient(90deg,#2f80ed,#70b2f1);border-radius:99px}.home-empty{display:flex;align-items:center;gap:18px;padding:34px}.home-empty-icon{width:58px;height:58px;border-radius:17px;display:grid;place-items:center;background:var(--sky);color:var(--siya);font-size:1.35rem;flex:0 0 auto}
.home-closing-panel{padding:28px;border-radius:24px;background:linear-gradient(135deg,#fff8f4,#fff);border:1px solid #f2ddd2;box-shadow:0 16px 40px rgba(119,74,45,.06)}.home-closing-item{display:flex;align-items:center;gap:14px;padding:13px;border:1px solid #eee3dc;border-radius:16px;background:rgba(255,255,255,.88);color:var(--ink);transition:.2s ease}.home-closing-item:hover{transform:translateY(-2px);border-color:#e6cbbd;box-shadow:0 10px 24px rgba(119,74,45,.07);color:var(--ink)}.home-closing-count{width:58px;height:58px;border-radius:14px;background:#fff0e8;color:#bd5a3b;display:flex;flex-direction:column;justify-content:center;align-items:center;line-height:1;flex:0 0 auto}.home-closing-count strong{font-size:1.1rem}.home-closing-count small{font-size:.68rem;margin-top:4px}
.home-verify-section{position:relative}.home-verify-card{position:relative;overflow:hidden;border-radius:28px;background:linear-gradient(120deg,#0a3c70,#0f5eaa 58%,#2f80ed);color:#fff;padding:42px 46px;box-shadow:0 24px 58px rgba(15,79,145,.22)}.home-verify-card:after{content:"";position:absolute;width:330px;height:330px;border:60px solid rgba(255,255,255,.05);border-radius:50%;right:-115px;top:-155px}.home-verify-card>.row{position:relative;z-index:1}.home-verify-card p{color:#dbeaff;max-width:700px}.home-verify-form .input-group{background:#fff;padding:5px;border-radius:15px;max-width:650px}.home-verify-form .input-group-text,.home-verify-form .form-control{border:0;background:#fff}.home-verify-form .input-group-text{color:var(--siya)}.home-verify-form .form-control:focus{box-shadow:none}.home-verify-form .btn-light{color:var(--siya-deep);font-weight:700;border-radius:11px}.home-qr-visual{display:flex;align-items:center;justify-content:center;gap:18px}.home-qr-box{width:110px;height:110px;border-radius:22px;background:#fff;color:#0f4f91;display:grid;place-items:center;font-size:4.8rem;box-shadow:0 18px 45px rgba(0,0,0,.13)}.home-qr-visual span,.home-qr-visual div:last-child{display:flex;flex-direction:column}.home-qr-visual small{color:#d9ebfb;margin-top:4px}
.home-timeline{display:grid;gap:3px}.home-timeline-item{display:flex;align-items:center;gap:14px;padding:13px 10px;border-radius:15px;color:var(--ink);transition:.2s ease}.home-timeline-item:hover{background:var(--sky);color:var(--ink)}.home-date-box{width:58px;height:58px;border-radius:15px;background:var(--sky);border:1px solid #d8e9f8;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--siya);line-height:1;flex:0 0 auto}.home-date-box strong{font-size:1.15rem}.home-date-box span{font-size:.7rem;margin-top:5px}.home-notice-card{display:flex;flex-direction:column;padding:32px;border-radius:24px;background:linear-gradient(155deg,#eef7ff,#ffffff);border:1px solid var(--line);box-shadow:var(--shadow)}.home-notice-icon{width:58px;height:58px;border-radius:17px;display:grid;place-items:center;background:#fff;border:1px solid #d7eafa;color:var(--siya);font-size:1.35rem;margin-bottom:20px}.home-notice-card p{color:var(--muted);line-height:1.75}

.privacy-notice-pop{position:fixed;right:22px;bottom:22px;width:min(430px,calc(100vw - 32px));z-index:1045;display:flex;align-items:flex-start;gap:14px;padding:18px 46px 18px 18px;border:1px solid rgba(191,218,241,.95);border-radius:20px;background:rgba(255,255,255,.94);box-shadow:0 22px 60px rgba(15,79,145,.22);backdrop-filter:blur(18px);opacity:0;visibility:hidden;transform:translateY(18px) scale(.985);transition:opacity .28s ease,transform .28s cubic-bezier(.22,1,.36,1),visibility .28s}
.privacy-notice-pop.show{opacity:1;visibility:visible;transform:none}
.privacy-pop-icon{width:46px;height:46px;flex:0 0 auto;border-radius:14px;display:grid;place-items:center;background:linear-gradient(145deg,#e9f5ff,#f8fcff);border:1px solid #d1e8fa;color:var(--siya);font-size:1.15rem}
.privacy-pop-content{min-width:0}.privacy-pop-kicker{font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;color:var(--siya);font-weight:700;margin-bottom:3px}.privacy-pop-content h5{font-size:1rem;margin:0 0 5px}.privacy-pop-content p{font-size:.84rem;line-height:1.55;color:var(--muted);margin:0}.privacy-pop-links{font-size:.76rem;margin-top:7px}.privacy-pop-links a{font-weight:600}.privacy-pop-links span{color:var(--muted);margin:0 5px}.privacy-pop-close{position:absolute;right:11px;top:11px;width:30px;height:30px;border:0;border-radius:9px;background:transparent;color:var(--muted);display:grid;place-items:center}.privacy-pop-close:hover{background:var(--sky);color:var(--siya)}
html[data-theme='dark'] .certificate-preview-card,html[data-theme='dark'] .certificate-preview-badge{background:#fff;color:#14324d}
html[data-theme='dark'] .home-closing-panel{background:linear-gradient(135deg,#2b221f,#172637);border-color:#4c3931}html[data-theme='dark'] .home-closing-item{background:#1a2b3b;border-color:#415365;color:var(--ink)}html[data-theme='dark'] .home-closing-item:hover{color:var(--ink);background:#203346}html[data-theme='dark'] .home-notice-card{background:linear-gradient(155deg,#15283a,#182a3c)}html[data-theme='dark'] .home-timeline-item{color:var(--ink)}html[data-theme='dark'] .home-timeline-item:hover{background:#20364b;color:var(--ink)}
html[data-theme='dark'] .privacy-notice-pop{background:rgba(20,35,50,.95);border-color:#31506a;box-shadow:0 22px 60px rgba(0,0,0,.34)}html[data-theme='dark'] .privacy-pop-icon{background:#20364b;border-color:#31506a;color:#b9dcff}
@media(max-width:991.98px){.home-hero{min-height:0;padding:68px 0 58px}.certificate-preview-wrap{min-height:330px}.home-verify-card{padding:34px 28px}.home-qr-visual{justify-content:flex-start}.certificate-preview-badge{right:8px}}
@media(max-width:575.98px){.home-hero{padding:54px 0 44px}.home-trust{gap:8px 12px}.certificate-preview-wrap{min-height:285px}.certificate-preview-card{padding:20px 22px;border-radius:18px}.certificate-preview-title{font-size:1.75rem}.certificate-preview-logo{width:44px;height:44px}.certificate-preview-badge{bottom:12px;right:0;transform:scale(.9);transform-origin:right bottom}.home-activity-media{height:180px}.home-empty{align-items:flex-start;padding:24px}.home-closing-panel{padding:20px}.home-verify-card{padding:28px 20px;border-radius:22px}.home-verify-form .input-group{display:flex}.home-verify-form .btn{width:100%;margin-top:6px}.home-qr-box{width:88px;height:88px;font-size:3.8rem}.privacy-notice-pop{right:12px;bottom:74px;width:calc(100vw - 24px);padding:16px 42px 16px 14px}.privacy-pop-icon{width:40px;height:40px;border-radius:12px}.privacy-pop-content p{font-size:.8rem}}
@media print{.privacy-notice-pop{display:none!important}}

/* Keep Bootstrap modal/backdrop in their native stacking order. Nested modals are moved to body by app.js. */
.modal{z-index:1055}
.modal-backdrop{z-index:1050}

/* V17 — director activity detail approval flow */
.director-activity-modal .modal-content{background:var(--bs-body-bg);color:var(--ink)}
.director-activity-cover{width:100%;max-height:340px;object-fit:cover;border-radius:20px;border:1px solid var(--line)}
.director-detail-box{height:100%;padding:14px 16px;border:1px solid var(--line);border-radius:15px;background:var(--sky-2);display:flex;flex-direction:column;gap:4px}
.director-detail-box span{font-size:.78rem;color:var(--muted)}
.director-detail-box strong{font-size:.96rem;color:var(--ink);font-weight:600}
.director-description{padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--sky-2);line-height:1.75;color:var(--ink)}
.director-template-preview{width:100%;max-width:720px;aspect-ratio:1.414/1;object-fit:cover;border-radius:16px;border:1px solid var(--line);box-shadow:0 14px 34px rgba(15,79,145,.10)}
.director-decision-panel{padding:20px;border:1px solid #cfe3f6;border-radius:18px;background:linear-gradient(145deg,#f5faff,#fff)}
html[data-theme='dark'] .director-detail-box,html[data-theme='dark'] .director-description{background:#132334;border-color:#31506a}
html[data-theme='dark'] .director-decision-panel{background:linear-gradient(145deg,#142638,#182b3c);border-color:#31506a}
html[data-theme='dark'] .director-activity-modal .modal-content{background:#162637}

/* A4 uploaded templates act as backgrounds; dynamic certificate content remains on top */
.certificate-sheet.has-template:before,.certificate-sheet.has-template:after{display:none}
.certificate-sheet.has-template{padding:13mm 17mm;background-color:#fff}
.certificate-sheet.has-template .cert-content{height:181mm}

/* V19 — room + student participant picker */
.participant-picker{border:1px solid var(--line);border-radius:22px;background:var(--card);overflow:hidden;box-shadow:0 10px 30px rgba(15,79,145,.06)}
.participant-picker-top{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,var(--sky-2),var(--card))}
.participant-summary{flex-shrink:0;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--muted);font-size:.82rem;font-weight:600;white-space:nowrap}
.participant-summary.has-selection{background:var(--sky);border-color:#b9daf6;color:var(--siya-deep)}
.participant-picker-grid{display:grid;grid-template-columns:minmax(245px,32%) 1fr;min-height:430px}
.participant-room-pane{padding:16px;border-right:1px solid var(--line);background:var(--sky-2)}
.participant-room-list{display:flex;flex-direction:column;gap:9px;max-height:510px;overflow:auto;padding-right:3px}
.participant-room-card{border:1px solid var(--line);border-radius:16px;background:var(--card);overflow:hidden;transition:.2s ease}
.participant-room-card:hover,.participant-room-card.active{border-color:#9bc9ef;box-shadow:0 8px 22px rgba(15,79,145,.08)}
.participant-room-card.selected{border-color:#78b6ea;background:linear-gradient(135deg,#f2f9ff,#fff)}
.participant-room-open{width:100%;display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--ink);padding:12px 12px 9px;text-align:left;font-family:inherit}
.participant-room-icon{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:var(--sky);color:var(--siya);border:1px solid var(--line)}
.participant-room-copy{display:flex;flex-direction:column;min-width:0}.participant-room-copy strong{font-size:.95rem}.participant-room-copy small{color:var(--muted);font-size:.75rem}
.participant-room-check{display:flex;align-items:center;gap:8px;padding:8px 12px 11px;border-top:1px dashed var(--line);font-size:.82rem;color:var(--muted);cursor:pointer}.participant-room-check .form-check-input{margin:0}
.participant-student-pane{padding:18px 20px;background:var(--card)}
.participant-room-panel{display:none}.participant-room-panel.active{display:block;animation:dashboardFade .22s cubic-bezier(.22,1,.36,1)}
.participant-room-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:2px}
.participant-room-included{display:flex;align-items:center;gap:8px;margin:10px 0;padding:10px 12px;border:1px solid #bfe2cf;border-radius:13px;background:#f0fbf5;color:#17683e;font-size:.82rem;font-weight:600}
.participant-student-list{display:flex;flex-direction:column;gap:8px;max-height:380px;overflow:auto;padding:4px 2px 4px 0}
.participant-student-row{display:grid;grid-template-columns:auto 38px minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px 12px;border:1px solid var(--line);border-radius:14px;background:var(--card);cursor:pointer;transition:.18s ease}
.participant-student-row:hover{border-color:#a8d0ef;background:var(--sky-2)}
.participant-student-row .form-check-input{margin:0}
.participant-avatar{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--sky);color:var(--siya);font-weight:700;border:1px solid var(--line)}
.participant-student-copy{display:flex;flex-direction:column;min-width:0}.participant-student-copy strong{font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.participant-student-copy small{font-size:.74rem;color:var(--muted)}
.participant-in-room-badge{display:none;padding:5px 8px;border-radius:999px;background:#e8f7ef;color:#1d6a43;font-size:.7rem;font-weight:700;white-space:nowrap}
.participant-student-row.included-by-room{background:#f6fbf8;border-color:#cde8d9;cursor:default}.participant-student-row.included-by-room .participant-in-room-badge{display:inline-flex}.participant-student-row.included-by-room .form-check-input{opacity:.45}
.participant-picker-help{display:flex;align-items:flex-start;gap:8px;padding:12px 18px;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem;background:var(--sky-2)}
.participant-empty-state{min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--muted);gap:7px}.participant-empty-state i{font-size:2rem;color:var(--siya)}
html[data-theme='dark'] .participant-picker{background:#162637;border-color:#31506a}
html[data-theme='dark'] .participant-picker-top{background:linear-gradient(135deg,#132334,#162637);border-color:#31506a}
html[data-theme='dark'] .participant-summary{background:#162637;border-color:#31506a}
html[data-theme='dark'] .participant-summary.has-selection{background:#20364b;color:#b9dcff;border-color:#3b668d}
html[data-theme='dark'] .participant-room-pane,html[data-theme='dark'] .participant-picker-help{background:#132334;border-color:#31506a}
html[data-theme='dark'] .participant-room-card,html[data-theme='dark'] .participant-student-row{background:#162637;border-color:#31506a}
html[data-theme='dark'] .participant-room-card.selected{background:linear-gradient(135deg,#17314a,#162637);border-color:#4b82b3}
html[data-theme='dark'] .participant-student-pane{background:#162637}
html[data-theme='dark'] .participant-student-row:hover{background:#1b3045;border-color:#4b82b3}
html[data-theme='dark'] .participant-room-included{background:#173427;border-color:#2f6848;color:#9dd8b7}
html[data-theme='dark'] .participant-student-row.included-by-room{background:#173126;border-color:#2d6345}
@media(max-width:991.98px){.participant-picker-top{align-items:flex-start;flex-direction:column}.participant-summary{white-space:normal}.participant-picker-grid{grid-template-columns:1fr}.participant-room-pane{border-right:0;border-bottom:1px solid var(--line)}.participant-room-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));max-height:360px}.participant-student-pane{padding:16px}}
@media(max-width:575.98px){.participant-room-list{grid-template-columns:1fr}.participant-student-row{grid-template-columns:auto 36px minmax(0,1fr)}.participant-in-room-badge{grid-column:2/4;width:max-content}.participant-summary{width:100%}}