.nav-group>summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}.nav-group>summary:after{content:'⌄';font-size:12px}.nav-group:not([open])>summary:after{content:'›'}.nav-group>summary::-webkit-details-marker{display:none}.seat-card.selected{background:#2563eb;color:#fff;border-color:#2563eb}.wizard-progress{flex-wrap:wrap}.toolbar input[type=date]{max-width:180px}dialog.filter-drawer{margin:0 0 0 auto;height:100dvh;max-height:100dvh;border-radius:0;width:min(430px,100%)}.filter-drawer .form-grid{grid-template-columns:1fr}button:disabled{cursor:default}.stat-card .trend{line-height:1.5}

.sidebar{background:radial-gradient(circle at 15% 0,rgba(59,130,246,.22),transparent 32%),linear-gradient(165deg,#172554 0%,#0f172a 55%,#020617 100%);box-shadow:12px 0 34px rgba(15,23,42,.13)}
.nav-link,.nav-group>summary{border-radius:10px;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}.nav-link:hover,.nav-group>summary:hover{background:rgba(255,255,255,.10);transform:translateX(3px)}.nav-link.active{background:linear-gradient(100deg,#2563eb,#3b82f6);box-shadow:0 7px 20px rgba(37,99,235,.28)}
.topbar{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.app-card{transition:box-shadow .2s ease,transform .2s ease}.app-card:hover{box-shadow:0 12px 30px rgba(15,23,42,.08)}
.btn-primary,button{transition:transform .15s ease,box-shadow .15s ease,background .15s ease}.btn-primary:hover,button:hover{transform:translateY(-1px)}.btn-small{padding:.48rem .7rem;font-size:.82rem;white-space:nowrap}
.assignment-ok,.assignment-none{display:inline-flex;align-items:center;gap:.35rem;padding:.28rem .55rem;border-radius:999px;font-size:.78rem;font-weight:700}.assignment-ok{color:#166534;background:#dcfce7}.assignment-none{color:#9a3412;background:#ffedd5}.assignment-hero{background:linear-gradient(120deg,#eff6ff,#f8fafc);border:1px solid #bfdbfe}
.available-seat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.75rem;margin:1rem 0}.available-seat{display:block;cursor:pointer}.available-seat input{position:absolute;opacity:0}.available-seat span{display:block;border:1px solid #cbd5e1;border-radius:12px;padding:.9rem;background:#fff;transition:.16s ease}.available-seat:hover span,.available-seat input:checked+span{border-color:#2563eb;background:#eff6ff;box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.period-preview{padding:.8rem 1rem;border-left:4px solid #2563eb;border-radius:8px;background:#eff6ff;color:#1e3a8a}.paid-row{background:#f0fdf4}
@media(max-width:760px){.available-seat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.btn-small{width:100%;margin-top:.35rem}.topbar{backdrop-filter:none}}
.admission-section{position:relative;padding:26px 28px}.admission-section h2{display:flex;align-items:center;gap:.7rem;padding-bottom:15px;border-bottom:1px solid #eef2f7}.section-number{display:inline-grid;place-items:center;width:29px;height:29px;border-radius:9px;background:#dbeafe;color:#1d4ed8;font-size:.8rem}.optional-label{margin-left:auto;padding:.25rem .55rem;border-radius:999px;background:#f1f5f9;color:#64748b;font-size:.68rem;text-transform:uppercase;letter-spacing:.06em}.fee-summary{display:inline-block;margin:2px 0 12px;padding:.65rem .9rem;border-radius:8px;background:#ecfdf5;color:#166534;font-weight:700}.period-preview{display:grid;grid-template-columns:repeat(auto-fill,minmax(175px,1fr));gap:.55rem}.period-preview span{display:flex;flex-direction:column;padding:.65rem .75rem;border-radius:7px;background:rgba(255,255,255,.75)}.period-preview small{color:#475569}.admission-actions{position:sticky;bottom:0;z-index:10;display:flex;justify-content:flex-end;gap:.7rem;padding:14px 18px;margin:0 -4px;background:rgba(244,247,251,.92);backdrop-filter:blur(10px);border-top:1px solid #dbe3ec}
@media(max-width:760px){.admission-section{padding:20px 17px}.period-preview{grid-template-columns:1fr}.admission-actions .btn,.admission-actions .btn-primary{flex:1;text-align:center}}
.row-actions{display:flex;gap:.4rem;align-items:center}
.seat-create-dialog{width:min(680px,94vw)}.seat-create-dialog h2{margin-top:0}.seat-create-dialog .btn-primary{margin-top:.5rem}
.batch-dialog{width:min(680px,94vw)}.batch-dialog h2{margin-top:0}.batch-dialog .btn-primary{margin-top:.5rem}
.category-dialog{width:min(560px,94vw)}.category-dialog h2{margin-top:0}.category-dialog .btn-primary{margin-top:.5rem}
.management-dialog{width:min(620px,94vw)}.management-dialog h2{margin-top:0}.notification-message{white-space:normal;min-width:280px}.status-badge.notification-new{background:#dbeafe;color:#1d4ed8}
.status-badge.transaction-cancelled{background:#fef2f2;color:#b91c1c}
.student-login{min-height:100vh;background:radial-gradient(circle at 80% 0,#60a5fa55,transparent 30%),linear-gradient(155deg,#0f172a,#172554 55%,#1d4ed8);color:#fff}.student-login main{width:min(1100px,100%);min-height:100vh;margin:auto;padding:42px;display:grid;grid-template-columns:1fr 420px;gap:60px;align-items:center}.student-login-brand{position:absolute;top:32px;display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.08em}.student-login-brand img{width:48px}.student-login-brand small{display:block;color:#93c5fd;font-weight:400}.student-login-copy h1{font-size:52px}.student-login-copy p{color:#bfdbfe;font-size:17px}.student-login-card{background:#fff;color:#111827;padding:34px;border-radius:24px;box-shadow:0 30px 80px #02061766}.student-hero{display:flex;align-items:center;justify-content:space-between;padding:28px;border-radius:22px;color:#fff;background:linear-gradient(130deg,#172554,#2563eb);margin-bottom:18px}.student-hero h1{margin:6px 0}.student-hero p{color:#bfdbfe}.student-avatar{width:64px;height:64px;border-radius:20px;background:#ffffff22;display:grid;place-items:center;font-size:28px;font-weight:800}.attendance-state{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;padding:22px;border-radius:18px;margin-bottom:18px}.attendance-state.is-in{background:#ecfdf5;border:1px solid #a7f3d0}.attendance-state.is-out{background:#fff7ed;border:1px solid #fed7aa}.attendance-state h2,.attendance-state p{margin:2px 0}.state-icon{width:58px;height:58px;border-radius:18px;display:grid;place-items:center;font-weight:900}.is-in .state-icon{background:#16a34a;color:#fff}.is-out .state-icon{background:#f97316;color:#fff}.student-quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:18px}.student-quick-card{background:#fff;border:1px solid #e2e8f0;border-radius:18px;padding:20px;color:#111827}.student-quick-card span{float:right;width:38px;height:38px;border-radius:12px;background:#eff6ff;color:#2563eb;display:grid;place-items:center;font-weight:800}.student-quick-card small,.space-details small{display:block;color:#64748b}.student-quick-card b{display:block;font-size:20px;margin-top:8px}.space-details{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.space-details div{padding:16px;border-radius:12px;background:#f8fafc}.space-details b{display:block;margin-top:5px}.student-install{position:fixed;right:18px;bottom:82px;z-index:50;background:#172554;color:#fff;border:0;box-shadow:0 10px 30px #0f172a44}
@media(max-width:760px){.student-login main{display:block;padding:90px 20px 30px}.student-login-brand{top:24px}.student-login-copy h1{font-size:34px}.student-login-copy p{font-size:14px}.student-login-card{padding:25px;margin-top:28px}.student-app .content{padding:18px 14px 95px}.student-app .content>.page-header{display:none}.student-hero{padding:22px}.attendance-state{grid-template-columns:auto 1fr}.attendance-state .btn-primary{grid-column:1/-1;text-align:center}.space-details{grid-template-columns:1fr}.student-quick-grid{gap:10px}}
.attendance-list{display:grid;gap:12px}.attendance-visit{display:grid;grid-template-columns:80px 1fr 50px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid #e2e8f0;border-radius:16px;padding:16px}.visit-date{text-align:center;border-right:1px solid #e2e8f0}.visit-date b{display:block;font-size:24px}.visit-date small,.visit-event small{display:block;color:#64748b}.visit-event b{display:block;margin-top:4px}.check-in b{color:#15803d}.check-out b{color:#c2410c}.still-in b{color:#2563eb}.visit-line{height:3px;background:linear-gradient(90deg,#22c55e,#f97316);border-radius:3px}.visit-mode{padding:.3rem .55rem;border-radius:999px;background:#f1f5f9;color:#475569;font-size:.72rem}
@media(max-width:600px){.attendance-visit{grid-template-columns:58px 1fr 1fr;gap:10px}.visit-line{display:none}.visit-mode{grid-column:2/-1;width:max-content}.visit-date{grid-row:1/3}.visit-event{padding-left:5px}}
.qr-attendance{max-width:620px;margin:auto}.qr-heading h1{font-size:25px;margin-bottom:6px}.qr-heading p{color:#64748b;margin-top:0}.scan-instruction{padding:17px;margin:18px 0;border:1px solid #bfdbfe;border-radius:15px;background:#dbeafe;color:#1e3a8a}.attendance-choice{padding:18px;border:1px solid #e2e8f0;border-radius:18px;background:#fff;margin-bottom:18px}.attendance-toggle{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.attendance-toggle label{margin:0;padding:13px;text-align:center;border-radius:13px;background:#f8fafc;font-size:15px;font-weight:700}.attendance-toggle label.selected{background:#e0e7ff;color:#2563eb}.attendance-toggle input{position:absolute;opacity:0}.scanner-stage{position:relative;min-height:320px;border-radius:28px;overflow:hidden;background:radial-gradient(circle,#27364d,#101827 70%);display:grid;place-items:center}.scanner-stage #reader{width:100%;color:#fff}.scanner-stage #reader video{width:100%!important;min-height:320px;object-fit:cover}.scanner-stage #reader:empty{display:none}#scannerPlaceholder{position:absolute;width:205px;height:205px;border:3px solid #94a3b8;border-radius:30px;display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:center;color:#94a3b8;font-size:48px}#scannerPlaceholder small{font-size:13px}#scannerPlaceholder[hidden]{display:none!important}.camera-button{width:100%;border:0;border-radius:14px;background:#e0e7ff;color:#1d4ed8;font-weight:800;padding:14px}.token-label{margin-top:12px;font-weight:700}.token-label input{padding:14px;border-radius:14px}.token-label input.token-captured{border-color:#22c55e;background:#f0fdf4}.attendance-submit{width:100%;border:0;border-radius:14px;padding:15px;color:#fff;font-weight:800;background:linear-gradient(90deg,#2563eb,#7c3aed);box-shadow:0 8px 24px #4f46e533}.qr-attendance #cameraStatus{text-align:center;font-size:12px}.qr-attendance #cameraStatus b{color:#b91c1c}
@media(max-width:900px){.student-app .bottom-nav{padding:8px 8px calc(7px + env(safe-area-inset-bottom));box-shadow:0 -8px 25px #0f172a12}.student-app .bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:55px;color:#94a3b8;font-size:10px;font-weight:600}.student-app .bottom-nav i{font-size:20px}.student-app .bottom-nav a.active{color:#2563eb}.student-app .bottom-nav a.active i{transform:translateY(-2px)}.scanner-stage{min-height:300px}}
.install-help{text-align:center;width:min(380px,92vw)}.install-help .install-icon{width:58px;height:58px;margin:0 auto 14px;border-radius:18px;background:#e0e7ff;color:#2563eb;display:grid;place-items:center;font-size:28px}.install-help p{line-height:1.7;color:#475569}
.guide-intro{display:flex;align-items:center;justify-content:space-between;gap:20px;background:linear-gradient(120deg,#eff6ff,#fff)}.guide-intro h2{margin:5px 0}.guide-intro p{margin-bottom:0;color:#475569}.guide-status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px;margin-bottom:20px}.guide-status{display:flex;align-items:center;gap:12px;padding:17px;border:1px solid #fed7aa;border-radius:14px;background:#fff7ed;color:#9a3412}.guide-status.ready{border-color:#bbf7d0;background:#f0fdf4;color:#166534}.guide-status i{font-size:23px}.guide-status small{display:block;color:#64748b}.guide-steps{display:grid}.guide-steps a{display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:13px;padding:14px 2px;border-bottom:1px solid #edf1f6;color:#111827}.guide-steps a>span{width:32px;height:32px;border-radius:10px;background:#dbeafe;color:#1d4ed8;display:grid;place-items:center;font-weight:800}.guide-steps p{margin:2px 0;color:#64748b;font-size:12px}.guide-description{white-space:normal;min-width:280px}.guide-rules{display:grid;gap:9px;color:#475569;padding-left:20px}@media(max-width:900px){.guide-status-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:560px){.guide-intro{align-items:flex-start;flex-direction:column}.guide-status-grid{grid-template-columns:1fr}}
.product-credits a{font-weight:700;color:#64748b}.product-credits a:hover{color:#2563eb}@media(max-width:700px){.page-footer{flex-direction:column;gap:5px;text-align:center}.product-credits{line-height:1.6}}
.login-form,.student-login main{position:relative}.login-credits{position:absolute;left:20px;right:20px;bottom:16px;text-align:center;color:#94a3b8;font-size:11px;line-height:1.8;white-space:nowrap}.login-credits a{color:#2563eb;font-weight:700}.student-login .login-credits{color:#64748b}.student-login .login-credits a{color:#2563eb}@media(max-width:700px){.login-form{padding-bottom:82px}.student-login main{padding-bottom:95px}.login-credits{bottom:13px;font-size:10px}}