:root{--brand:#166534;--brand-mid:#15803d;--brand-light:#10b981;--brand-bg:#dcfce7;--bg:#f0fdf4;--panel:#fff;--panel2:#f3f4f6;--ink:#1a4731;--sub:#374151;--muted:#6b7280;--line:#e5e7eb;--danger:#dc2626;--warn:#d97706;--warn-bg:#fef3c7;--success:#16a34a;--radius:16px;--radius-sm:10px;--shadow:0 1px 2px #1428190a, 0 8px 24px -14px #1428191f;--shadow-lg:0 12px 40px -12px #14281938}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font:14px/1.55 Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}h1,h2,h3{letter-spacing:-.01em}button{cursor:pointer;border-radius:var(--radius-sm);border:none;font-family:inherit;font-size:14px}input,select,textarea{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--panel);width:100%;color:var(--ink);padding:9px 12px;font-family:inherit;font-size:14px}input:focus,select:focus,textarea:focus{border-color:var(--brand-light);box-shadow:0 0 0 3px color-mix(in srgb, var(--brand-light) 20%, transparent);outline:none}table{border-collapse:collapse;width:100%}th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);border-bottom:1px solid var(--line);padding:11px 14px;font-size:12px}td{border-bottom:1px solid var(--line);padding:12px 14px}tr:hover td{background:var(--panel2)}.login-wrap{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.login-card{background:var(--panel);border:1px solid var(--line);width:400px;max-width:100%;box-shadow:var(--shadow-lg);border-radius:22px;padding:40px 36px}.brand{margin-bottom:4px;font-size:22px;font-weight:800}.login-card .brand{text-align:center}.brand b{color:var(--brand-light)}.field-label{color:var(--muted);margin:14px 0 4px;font-size:12px;font-weight:600;display:block}.btn{background:var(--brand);color:#fff;border-radius:999px;width:100%;padding:12px 18px;font-weight:700;transition:background .15s,box-shadow .15s}.btn:hover{background:var(--brand-light);box-shadow:var(--shadow)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-sm{background:var(--brand);color:#fff;border-radius:999px;width:auto;padding:8px 15px;font-weight:600}.btn-sm:hover{background:var(--brand-light)}.btn-ghost{background:var(--panel);border:1px solid var(--line);color:var(--ink);border-radius:999px;width:auto;padding:8px 15px;font-weight:600;transition:border-color .15s,color .15s}.btn-ghost:hover{border-color:var(--brand-light);color:var(--brand)}.btn-danger{background:var(--panel);color:var(--danger);border:1px solid color-mix(in srgb, var(--danger) 45%, var(--line));border-radius:999px;width:auto;padding:8px 15px;font-weight:600}.btn-danger:hover{background:var(--danger);color:#fff}.err{color:#991b1b;border-radius:var(--radius-sm);background:#fef2f2;border:1px solid #fecaca;margin-top:12px;padding:10px 12px;font-size:13px}.ok-msg{background:var(--brand-bg);color:var(--brand);border-radius:var(--radius-sm);border:1px solid #bbf7d0;margin-top:12px;padding:10px 12px;font-size:13px}.shell{flex-direction:column;min-height:100vh;display:flex;position:relative}.shell:before{content:"";z-index:300;background:linear-gradient(90deg,#166534,#16a34a 45%,#10b981);height:4px;position:fixed;top:0;left:0;right:0}.tophdr{z-index:100;-webkit-backdrop-filter:saturate(1.2)blur(6px);backdrop-filter:saturate(1.2)blur(6px);padding-top:4px;position:sticky;top:0}.tophdr:after{content:"";z-index:-1;background:color-mix(in srgb, var(--bg) 82%, transparent);position:absolute;inset:0}.tophdr-row{align-items:center;gap:10px;padding:14px 28px 6px;display:flex}.tophdr .brand{align-items:center;gap:10px;margin:0;font-size:17px;display:flex}.tophdr .logo{background:var(--brand);color:#fff;width:34px;height:34px;box-shadow:0 4px 12px -4px color-mix(in srgb, var(--brand) 70%, transparent);border-radius:10px;place-items:center;font-size:18px;display:grid}.school-chip{color:var(--muted);margin-right:4px;font-size:12.5px}.topnav{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:999px;gap:2px;width:fit-content;max-width:calc(100% - 40px);margin:6px auto 12px;padding:6px;display:flex;overflow-x:auto}.topnav::-webkit-scrollbar{height:0}.topnav-item{color:var(--muted);white-space:nowrap;background:0 0;border:0;border-radius:999px;align-items:center;gap:7px;padding:9px 16px;font-size:14px;font-weight:500;transition:color .15s,background .15s;display:flex}.topnav-item:hover{color:var(--ink);background:var(--panel2)}.topnav-item.active{color:#fff;background:var(--brand);box-shadow:0 6px 16px -6px color-mix(in srgb, var(--brand) 75%, transparent);font-weight:600}.topnav-item.active:hover{color:#fff;background:var(--brand)}.sidebar{display:none}.nav-item{color:var(--muted);background:0 0;border-radius:999px;align-items:center;gap:8px;padding:9px 14px;display:flex}.nav-item.active{background:var(--brand);color:#fff;font-weight:700}.main{flex:1;width:100%;min-width:0;max-width:1280px;margin:0 auto;padding:8px 28px 40px}.topbar{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.topbar h1{font-size:22px}.page-head{margin:12px 0 22px}.page-head h1{margin:0;font-size:28px;font-weight:700}.page-head p{color:var(--muted);margin:4px 0 0;font-size:14px}.stats{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:22px;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;padding:20px}.card h3{margin-bottom:12px;font-size:15.5px;font-weight:700}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.grid2{grid-template-columns:1fr 1fr;gap:12px;display:grid}.pill{border-radius:999px;padding:3px 11px;font-size:12px;font-weight:600;display:inline-block}.pill.green{color:var(--brand);background:#dcfce7}.pill.amber{background:var(--warn-bg);color:var(--warn)}.pill.red{color:var(--danger);background:#fee2e2}.muted{color:var(--muted);font-size:12px}.right{text-align:right}.mt{margin-top:14px}.detail-overlay{z-index:200;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#14281973;justify-content:flex-end;display:flex;position:fixed;inset:0}.detail-panel{background:var(--bg);width:480px;max-width:92vw;height:100%;box-shadow:var(--shadow-lg);padding:26px;overflow-y:auto}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:color-mix(in srgb, var(--muted) 35%, transparent);border-radius:6px}::-webkit-scrollbar-thumb:hover{background:color-mix(in srgb, var(--muted) 55%, transparent)}::-webkit-scrollbar-track{background:0 0}.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px}.stat-top{align-items:center;gap:10px;margin-bottom:10px;display:flex}.stat-icon{border-radius:12px;place-items:center;width:40px;height:40px;font-size:20px;display:grid}.stat .v{color:var(--brand);letter-spacing:-.02em;font-size:26px;font-weight:800}.stat .l{color:var(--muted);margin-top:4px;font-size:12.5px}.student-grid{grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px;display:grid}.student-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);cursor:pointer;padding:16px;transition:border-color .15s,box-shadow .15s}.student-card:hover{border-color:var(--brand-light);box-shadow:var(--shadow)}.sc-top{align-items:flex-start;gap:12px;margin-bottom:12px;display:flex}.sc-avatar{background:var(--brand-bg);width:44px;height:44px;color:var(--brand);border:1px solid var(--brand-light);border-radius:12px;flex-shrink:0;place-items:center;font-size:14px;font-weight:800;display:grid}.sc-info{flex:1;min-width:0}.sc-name{color:var(--ink);font-size:15px;font-weight:700}.sc-sub{color:var(--muted);margin-top:2px;font-size:12px}.sc-slot{color:var(--brand);margin-top:3px;font-size:11px;font-weight:700}.sc-row{border-top:1px solid var(--line);flex-wrap:wrap;gap:6px;padding-top:10px;display:flex}.sc-chip{color:var(--muted);background:var(--panel2);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}.otp-label{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;font-size:11px;font-weight:700}.otp-input{text-align:center;letter-spacing:12px;border:2px solid var(--brand);border-radius:var(--radius);background:var(--panel);color:var(--ink);width:100%;margin-bottom:12px;padding:18px;font-size:36px;font-weight:900}.otp-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent)}.btn-otp{background:var(--panel2);width:100%;color:var(--muted);border-radius:var(--radius);padding:16px;font-size:16px;font-weight:900}.btn-otp-active{background:var(--brand);color:#fff;border-radius:var(--radius);width:100%;padding:16px;font-size:16px;font-weight:900;transition:background .15s}.btn-otp-active:hover{background:var(--brand-mid)}.btn-otp-active:disabled{opacity:.5;cursor:not-allowed}.log-item{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:10px 0;display:flex}.log-item:last-child{border-bottom:none}@media (width<=860px){.tophdr-row{flex-wrap:wrap;padding:12px 14px 6px}.main{padding:8px 14px 32px}.page-head h1{font-size:23px}.grid2{grid-template-columns:1fr}.detail-panel{width:100%}.student-grid{grid-template-columns:1fr}}