body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    background: #f4f5f7;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.login-card {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.06);
    padding: 40px 32px;
    width: 100%;
    max-width: 320px;
}

.login-card h1 {
    font-size: 1.3rem;
    text-align: center;
    margin-bottom: 28px;
    color: #1a1a1a;
    font-weight: 500;
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    margin-bottom: 6px;
    color: #6b7280;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 0.95rem;
    background: #fafafa;
}

.form-group input:focus {
    outline: none;
    border-color: #4f46e5;
}

.login-card button {
    width: 100%;
    padding: 11px;
    background: #4f46e5;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
}

.login-card button:hover {
    background: #4338ca;
}

.alert {
    background: #ffe3e3;
    color: #c92a2a;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 18px;
}