:root{--navy:#173f5f;--navy-2:#0f2d46;--blue:#20639b;--cyan:#3caea3;--green:#16835d;--amber:#f6a623;--red:#c43d4b;--ink:#172033;--muted:#667085;--line:#dbe3ec;--surface:#ffffff;--background:#f3f6f9;font-family:Inter,Noto Sans TC,Microsoft JhengHei,system-ui,sans-serif;color:var(--ink);background:var(--background)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--background)}button,input,select{font:inherit}button{cursor:pointer}a{color:inherit}.shell{min-height:100vh}.topbar{min-height:64px;padding:10px clamp(16px,4vw,48px);color:white;background:linear-gradient(120deg,var(--navy-2),var(--blue));justify-content:space-between;gap:16px;box-shadow:0 3px 14px #10283e30}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-weight:800;letter-spacing:.03em}.brand-mark{width:34px;height:34px;border:3px solid #fff;border-radius:8px;display:grid;place-items:center}.nav-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}.logout-button,.nav-link{color:white;border:1px solid #ffffff55;background:#ffffff12;border-radius:8px;padding:8px 12px;text-decoration:none}.logout-button:hover,.nav-link:hover{background:#ffffff24}.user-label{font-size:.84rem;color:#dceaf5}.page{width:min(1280px,100%);margin:0 auto;padding:clamp(18px,3vw,36px)}.page-heading{display:flex;justify-content:space-between;gap:16px;align-items:flex-end;margin-bottom:22px}.page-heading h1{margin:0;font-size:clamp(1.55rem,3vw,2.25rem)}.page-heading p{margin:6px 0 0;color:var(--muted)}.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 5px 22px #25364b10;padding:20px}.card h2,.card h3{margin-top:0}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:20px;gap:20px}.stats{display:grid;grid-template-columns:repeat(5,minmax(130px,1fr));grid-gap:14px;gap:14px;margin-bottom:20px}.stat{padding:18px;border-radius:12px;color:white;background:var(--navy)}.stat:nth-child(2){background:var(--green)}.stat:nth-child(3){background:var(--amber);color:#382303}.stat:nth-child(4){background:var(--blue)}.stat:nth-child(5){background:#7352a3}.stat-label{font-size:.85rem;opacity:.9}.stat-value{display:block;font-weight:850;font-size:1.8rem;margin-top:5px}.field{display:grid;grid-gap:7px;gap:7px;margin-bottom:14px}.field label{font-weight:700;font-size:.92rem}.input,.select{width:100%;min-height:44px;border:1px solid #bdc8d5;border-radius:9px;padding:9px 12px;background:white}.input:focus,.select:focus{outline:3px solid #20639b25;border-color:var(--blue)}.button{border:0;border-radius:9px;padding:10px 15px;min-height:42px;color:white;background:var(--blue);font-weight:750}.button:hover{filter:brightness(.94)}.button:disabled{opacity:.55;cursor:not-allowed}.button.secondary{background:#e7edf4;color:var(--ink)}.button.success{background:var(--green)}.button.danger{background:var(--red)}.button-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.message{margin:14px 0;border-radius:9px;padding:11px 13px;background:#eaf2f8;color:var(--navy);white-space:pre-wrap}.message.error{background:#fff0f1;color:#9d2633}.message.success{background:#eaf8f2;color:#116747}.hint{color:var(--muted);font-size:.86rem}.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at top right,#3977a2,#102d44 55%)}.login-card{width:min(440px,100%);background:white;border-radius:18px;padding:32px;box-shadow:0 24px 70px #07152266}.login-card h1{margin:12px 0 4px}.login-card p{color:var(--muted);margin-top:0}.login-register-link{margin:18px 0 0!important;text-align:center}.login-register-link a{color:var(--blue);font-weight:750}.registration-page{min-height:100vh;padding:clamp(22px,5vw,60px) 16px;background:linear-gradient(145deg,#edf5fa,#f9fbfd 45%,#e9f6f3)}.registration-shell{width:min(760px,100%);margin:0 auto}.registration-heading{margin:22px 0;text-align:center}.registration-heading h1{margin:8px 0;font-size:clamp(1.65rem,4vw,2.5rem);color:var(--navy)}.registration-heading p{margin:0;color:var(--muted);line-height:1.7}.eyebrow{color:var(--cyan);font-size:.78rem;font-weight:850;letter-spacing:.18em}.registration-form{padding:clamp(20px,4vw,32px)}.registration-success{text-align:center;padding:clamp(28px,5vw,48px)}.registration-number{display:grid;grid-gap:5px;gap:5px;width:min(360px,100%);margin:24px auto;padding:18px;border-radius:12px;background:#eaf2f8}.registration-number span{color:var(--muted);font-size:.85rem}.registration-number strong{color:var(--navy);font-size:1.65rem;letter-spacing:.06em}.registration-footer{text-align:center;color:var(--muted);font-size:.86rem}.registration-footer a{color:var(--blue)}.honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.event-logo{display:block;width:auto;max-width:min(100%,420px);max-height:140px;margin:0 auto 18px;object-fit:contain}.scan-logo{max-width:min(70vw,320px);max-height:90px;margin:0 0 14px}.admin-logo-preview{max-width:300px;max-height:100px;margin:14px 0 0}.branding-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.8fr);grid-gap:24px;gap:24px;align-items:center}.email-stats{display:flex;gap:14px;flex-wrap:wrap;margin:0 0 14px;color:var(--muted);font-size:.9rem}.email-stats span{padding:5px 9px;border-radius:999px;background:#edf1f5}.text-danger{color:var(--red);font-weight:750}.scanner-panel{min-height:420px}.video-wrap{position:relative;overflow:hidden;border-radius:12px;background:#101820;aspect-ratio:4/3;display:grid;place-items:center}.video-wrap video{width:100%;height:100%;object-fit:cover}.scan-frame{pointer-events:none;position:absolute;inset:18%;border:3px solid #74efd9;border-radius:12px;box-shadow:0 0 0 999px #0004}.result-box{border-radius:12px;padding:18px;margin-top:14px;text-align:center;font-size:1.05rem}.result-box.success{background:#e8f8f1;border:2px solid var(--green)}.result-box.duplicate{background:#fff7df;border:2px solid var(--amber)}.result-box.invalid{background:#fff0f1;border:2px solid var(--red)}.result-title{font-size:1.45rem;font-weight:850;margin-bottom:7px}.attendee-list{display:grid;grid-gap:10px;gap:10px;margin-top:12px}.attendee-row{display:flex;justify-content:space-between;align-items:center;gap:12px;border:1px solid var(--line);border-radius:10px;padding:12px}.attendee-row strong{display:block}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:720px}td,th{padding:11px 9px;text-align:left;border-bottom:1px solid var(--line);font-size:.9rem}th{color:#44536a;background:#f7f9fb;position:-webkit-sticky;position:sticky;top:0}.sort-button{display:inline-flex;align-items:center;gap:6px;width:100%;padding:0;border:0;color:inherit;background:transparent;font-weight:750;text-align:left;white-space:nowrap}.sort-button:hover{color:var(--blue)}.sort-button:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:3px}.badge{display:inline-block;border-radius:999px;padding:4px 8px;font-size:.78rem;background:#edf1f5}.badge.ok{background:#dff5eb;color:#106342}.badge.warn{background:#fff0cb;color:#704600}.toolbar{display:flex;align-items:flex-end;gap:10px;flex-wrap:wrap;margin-bottom:14px}.toolbar .field{margin:0;min-width:180px}.pagination{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-size:.9rem}.pagination .button-row{color:var(--ink)}.empty-cell{padding:28px 12px;color:var(--muted);text-align:center}.section-gap{margin-top:20px}@media (max-width:900px){.grid-2{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.scanner-panel{min-height:auto}.branding-card{grid-template-columns:1fr}}@media (max-width:560px){.topbar{align-items:flex-start}.user-label{display:none}.card,.page{padding:15px}.stats{grid-template-columns:1fr 1fr;gap:9px}.stat{padding:13px}.stat-value{font-size:1.45rem}.attendee-row{align-items:flex-start;flex-direction:column}.attendee-row .button{width:100%}}