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var(--aura-border);border-radius:var(--radius);padding:10px;box-shadow:var(--shadow-sm);margin-bottom:20px}.nos-tabs{display:flex;gap:6px;flex-wrap:wrap}.nos-tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--aura-border);background:#fff;color:var(--aura-ink);font:inherit;font-weight:600;font-size:14px;padding:9px 18px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s ease,border-color .15s ease,color .15s 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Grotesk,sans-serif;font-size:30px;font-weight:700;line-height:1.1;margin-top:6px;direction:ltr;text-align:start}.nos-panel{background:var(--aura-paper);border:1px solid var(--aura-border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow-sm);margin-bottom:var(--nos-gap)}.nos-panel>h2{font-size:20px;margin:0 0 4px}.nos-panel .panel-sub{color:var(--aura-muted);font-size:13.5px;margin-bottom:18px}.nos-panel-head{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:16px}.nos-panel-head h2{margin:0}.nos-form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px 22px}.nos-field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--aura-ink)}.nos-field input,.nos-field select,.nos-field textarea{width:100%;padding:10px 12px;border:1px solid var(--aura-border);border-radius:var(--radius-sm);font:inherit;font-size:14px;color:var(--aura-ink);background:#fff;transition:border-color .15s ease,box-shadow .15s ease}.nos-field textarea{min-height:80px;resize:vertical}.nos-field input:focus,.nos-field select:focus,.nos-field textarea:focus{outline:none;border-color:var(--aura-blue);box-shadow:0 0 0 3px #185fa51f}.nos-field input[type=date]{direction:ltr}.nos-study{border:1px solid var(--aura-border);border-radius:var(--radius);background:#fff;margin-bottom:16px;overflow:hidden}.nos-study-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:14px 18px;background:#fafbfc;border-bottom:1px solid var(--aura-border)}.nos-study-head .st-name{font-weight:700;font-size:15px}.nos-study-head 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solid transparent;white-space:nowrap}.nos-badge:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}.nos-table-wrap{overflow-x:auto}.nos-table{width:100%;border-collapse:collapse;font-size:14px}.nos-table th,.nos-table td{padding:11px 14px;text-align:start;border-bottom:1px solid var(--aura-border);vertical-align:middle}.nos-table th{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--aura-muted);background:#fafbfc;white-space:nowrap}.nos-table tbody tr:hover{background:#fbfcfd}.nos-table .num{direction:ltr;font-variant-numeric:tabular-nums}.nos-chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--nos-gap)}.nos-chart-box{min-height:300px}.nos-figure-box{margin-top:12px;overflow-x:auto;direction:ltr;border:1px solid var(--aura-border, #E4E7EC);border-radius:10px;background:#fff;padding:6px}.nos-figure-box svg{display:block;height:auto}.nos-export-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}.nos-export-btn{display:flex;align-items:center;gap:10px;padding:14px 16px;border:1px solid var(--aura-border);border-radius:var(--radius-sm);background:#fff;color:var(--aura-ink);font:inherit;font-weight:600;font-size:14px;text-align:start;cursor:pointer;box-shadow:var(--shadow-sm);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}.nos-export-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#c8d2de}.nos-export-btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:var(--shadow-sm)}.nos-export-btn svg{flex:0 0 auto;width:20px;height:20px;color:var(--aura-muted)}.nos-empty{text-align:center;padding:48px 20px;color:var(--aura-muted)}.nos-empty svg{color:#c6ccd6;margin-bottom:12px}.nos-empty p{margin:0 0 16px;font-size:14.5px}.nos-toast{position:fixed;inset-block-end:24px;inset-inline-end:24px;z-index:60;background:var(--aura-ink);color:#fff;padding:12px 18px;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);font-size:14px;font-weight:500}.nos-toast.is-error{background:#b23a34}@media print{.topbar,.nos-bar,.nos-head-actions,.nos-export-grid,.st-actions,.nos-toast,.flash{display:none!important}body{background:#fff}.student-main{max-width:none;padding:0}.nos-panel,.nos-stat,.nos-study{box-shadow:none;border-color:#ccc;break-inside:avoid}[x-cloak],.nos-print-all [hidden]{display:revert!important}}@media (max-width: 640px){.nos-title{font-size:24px}.nos-panel{padding:18px}.nos-items{grid-template-columns:1fr}}