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var(--border);background:var(--surface);color:var(--text)}.button-outline:hover{background:var(--background);border-color:var(--primary)}.button-danger{color:#fff;background:#dc2626}.button-danger:hover{background:#b91c1c}table{border-collapse:collapse;width:100%}th{background-color:var(--background);color:var(--text);text-transform:uppercase;letter-spacing:.05em;border-bottom:2px solid var(--border);font-size:.75rem;font-weight:700}th,td{text-align:left;border-bottom:1px solid var(--border);padding:1rem}tr:hover{background-color:#00000008}[data-theme=dark] tr:hover{background-color:#ffffff08}.grade-input{border:2px solid 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p{color:var(--text-secondary)}.login-form{text-align:left}.login-error{color:#dc2626;background-color:#fee2e2;border:1px solid #fecaca;border-radius:.5rem;margin-bottom:1.5rem;padding:.75rem;font-size:.875rem;font-weight:500}.input-with-icon{align-items:center;display:flex;position:relative}.input-with-icon svg{color:var(--text-secondary);position:absolute;left:1rem}.input-with-icon input{border:2px solid var(--border);background:var(--background);width:100%;color:var(--text);border-radius:.5rem;padding:.75rem 1rem .75rem 3rem;font-size:1rem;transition:all .2s}.input-with-icon input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #2563eb1a}.login-button{justify-content:center;width:100%;margin-top:2rem;padding:.875rem;font-size:1rem}.login-footer{color:var(--text-secondary);margin-top:2rem;font-size:.875rem}@media 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